Patent Grant
12207250
The following relates to wireless communication, including time gap enhancement for message repetition.
Wireless communications systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing the available system resources (e.g., time, frequency, and power). Examples of such multiple-access systems include fourth generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-A Pro systems, and fifth generation (5G) systems which may be referred to as New Radio (NR) systems. These systems may employ technologies such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal FDMA (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple-access communications system may include one or more base stations or one or more network access nodes, each simultaneously supporting communication for multiple communication devices, which may be otherwise known as user equipment (UE).
In some wireless communications systems, a UE may repeat transmissions to increase reliability. As part of such a procedure, the UE may maintain an amount of time between transmissions to reconfigure parameters for the repetitions. Conventional methods for repetition of transmissions may be deficient.
The described techniques relate to improved methods, systems, devices, and apparatuses that support time gap enhancement for message repetition. Generally, the described techniques provide for methods for repetition of transmissions. A user equipment (UE) may receive control signaling (e.g., radio resource control (RRC) signaling or downlink control information (DCI)) that may schedule transmission of a plurality of repetitions of an uplink message (e.g., repeated transmission of a same message on a physical uplink shared channel (PUSCH) or other message) and may also indicate a time gap threshold between a pair of adjacent repetitions. The UE may transmit a first repetition of the uplink message based on the control signaling. The UE may also transmit, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition by a time gap that may satisfy the time gap threshold.
A method for wireless communication at a UE is described. The method may include receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, transmitting a first repetition of the uplink message based on the control signaling, and transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
An apparatus for wireless communication at a UE is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to receive control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, transmit a first repetition of the uplink message based on the control signaling, and transmit, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
Another apparatus for wireless communication at a UE is described. The apparatus may include means for receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, means for transmitting a first repetition of the uplink message based on the control signaling, and means for transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to receive control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, transmit a first repetition of the uplink message based on the control signaling, and transmit, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the first and second repetitions of the uplink message may include operations, features, means, or instructions for transmitting one or more repetitions of the uplink message having the time gap between one or more pairs of consecutive repetitions of the plurality of repetitions.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second repetition of the uplink message may include operations, features, means, or instructions for transmitting the second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by the time gap based on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the control signaling may include operations, features, means, or instructions for receiving the control signaling indicating the first transmission parameter that specifies a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the control signaling may include operations, features, means, or instructions for receiving the control signaling indicating the first transmission parameter that specifies a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the control signaling may include operations, features, means, or instructions for receiving the control signaling indicating the first transmission parameter that specifies a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the first repetition of the uplink message may include operations, features, means, or instructions for transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the first repetition of the uplink message may include operations, features, means, or instructions for transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second repetition of the uplink message may include operations, features, means, or instructions for transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second repetition of the uplink message may include operations, features, means, or instructions for transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold.
Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting the first repetition includes transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold and transmitting the second repetition includes transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, each uplink message repetition may be associated with a corresponding transmission parameter.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first repetition may be a first sub-repetition of a third repetition of the set of multiple repetitions and the second repetition may be a second sub-repetition of the third repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, where the first sub-repetition may be a first actual repetition and the second sub-repetition may be a second actual repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the first sub-repetition of the uplink message may include operations, features, means, or instructions for identifying a configured gap between the first sub-repetition and the second sub-repetition and transmitting the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first sub-repetition corresponding to the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the second sub-repetition of the uplink message may include operations, features, means, or instructions for identifying a configured gap between the first sub-repetition and the second sub-repetition and transmitting the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second sub-repetition corresponding to the time gap threshold.
Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for transmitting the first repetition includes transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary and transmitting the second repetition includes transmitting the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for determining that the first repetition may be a first sub-repetition and that the second repetition may be a second sub-repetition and where transmitting the first repetition and the second repetition includes transmitting the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the set of multiple repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first repetition may be a first nominal repetition and the second repetition may be a second nominal repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the control signaling may include operations, features, means, or instructions for receiving a first control message scheduling the set of multiple repetitions of the uplink message and a second control message indicating the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the control signaling includes radio resource control signaling.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the control signaling includes downlink control information.
A method for wireless communication at a network device is described. The method may include transmitting control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, receiving a first repetition of the uplink message based on the control signaling, and receiving, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
An apparatus for wireless communication at a network device is described. The apparatus may include a processor, memory coupled with the processor, and instructions stored in the memory. The instructions may be executable by the processor to cause the apparatus to transmit control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, receive a first repetition of the uplink message based on the control signaling, and receive, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
Another apparatus for wireless communication at a network device is described. The apparatus may include means for transmitting control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, means for receiving a first repetition of the uplink message based on the control signaling, and means for receiving, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
A non-transitory computer-readable medium storing code for wireless communication at a network device is described. The code may include instructions executable by a processor to transmit control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions, receive a first repetition of the uplink message based on the control signaling, and receive, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the first and second repetitions of the uplink message may include operations, features, means, or instructions for receiving one or more repetitions of the uplink message having the time gap between one or more pairs of consecutive repetitions of the plurality of repetitions.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second repetition of the uplink message may include operations, features, means, or instructions for receiving the second repetition of the uplink message separated in time from reception of the first repetition of the uplink message by the time gap based on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the control signaling may include operations, features, means, or instructions for transmitting the control signaling indicating the first transmission parameter that specifies a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the control signaling may include operations, features, means, or instructions for transmitting the control signaling indicating the first transmission parameter that specifies a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the control signaling may include operations, features, means, or instructions for transmitting the control signaling indicating the first transmission parameter that specifies a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the first repetition may include operations, features, means, or instructions for receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the first repetition of the uplink message may include operations, features, means, or instructions for receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second repetition may include operations, features, means, or instructions for receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second repetition of the uplink message may include operations, features, means, or instructions for receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition.
Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving the first repetition includes receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition and receiving the second repetition includes receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, each uplink message repetition may be associated with a corresponding transmission parameter.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first repetition may be a first sub-repetition of a third repetition of the set of multiple repetitions and the second repetition may be a second sub-repetition of the third repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, where the first sub-repetition may be a first actual repetition and the second sub-repetition may be a second actual repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the first sub-repetition of the uplink message may include operations, features, means, or instructions for receiving the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based on a configured gap between the first sub-repetition and the second sub-repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, receiving the second sub-repetition of the uplink message may include operations, features, means, or instructions for receiving the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based on a configured gap between the first sub-repetition and the second sub-repetition.
Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for receiving the first repetition includes receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary and receiving the second repetition includes receiving the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
Some examples of the method, apparatuses, and non-transitory computer-readable medium described herein may further include operations, features, means, or instructions for identifying that the first repetition may be a first sub-repetition and that the second repetition may be a second sub-repetition and where receiving the first repetition and the second repetition includes receiving the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the set of multiple repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the first repetition may be a first nominal repetition and the second repetition may be a second nominal repetition.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, transmitting the control signaling may include operations, features, means, or instructions for transmitting a first control message scheduling the set of multiple repetitions of the uplink message and a second control message indicating the time gap threshold.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the control signaling includes radio resource control signaling.
In some examples of the method, apparatuses, and non-transitory computer-readable medium described herein, the control signaling includes downlink control information.
In some wireless communications it is desirable for a user equipment (UE) to repeat uplink transmissions to increase transmission reliability. In some cases, a UE may transmit a first repetition using one or more first parameters different than one or more second parameters used to transmit a second repetition. After transmitting the first repetition based on the one or more first parameters, the UE may insert a time gap after transmitting the first repetitions to facilitate reconfiguration based on the one or more second parameters to prepare for transmission of the second repetition. However, in some cases, insertion of the time gap of a fixed size between consecutive repetitions may not be needed (e.g., the time gap exceeds the amount of time that the UE needs to reconfigure), and may introduce unnecessary delays between repetitions.
To reduce delays in transmission, a UE may apply a time gap between repetitions based on a time gap threshold that may be configured or dynamically indicated. In some cases, the UE may expand a time gap to meet the time gap threshold by invalidating symbols from the first repetition, the second repetition, or both. In some cases, the UE may apply a time gap between nominal repetitions, and in other cases, the UE may apply a time gap between actual repetitions. In cases of actual repetitions, the enforcement of the time gap may take an existing time gap between actual repetitions into account when invalidating symbols to meet the time gap threshold.
Aspects of the disclosure are initially described in the context of wireless communications systems. Aspects of the disclosure are then illustrated by example repetition schemes, wireless communication systems, and process flows. Aspects of the disclosure are further illustrated by and described with reference to apparatus diagrams, diagrams, and flowcharts that relate to time gap enhancement for message repetition.
The base stations 105 may be dispersed throughout a geographic area to form the wireless communications system 100 and may be devices in different forms or having different capabilities. The base stations 105 and the UEs 115 may wirelessly communicate via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base station 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which a base station 105 and a UE 115 may support the communication of signals according to one or more radio access technologies.
The UEs 115 may be dispersed throughout a coverage area 110 of the wireless communications system 100, and each UE 115 may be stationary, or mobile, or both at different times. The UEs 115 may be devices in different forms or having different capabilities. Some example UEs 115 are illustrated in
The base stations 105 may communicate with the core network 130, or with one another, or both. For example, the base stations 105 may interface with the core network 130 through one or more backhaul links 120 (e.g., via an S1, N2, N3, or other interface). The base stations 105 may communicate with one another over the backhaul links 120 (e.g., via an X2, Xn, or other interface) either directly (e.g., directly between base stations 105), or indirectly (e.g., via core network 130), or both. In some examples, the backhaul links 120 may be or include one or more wireless links.
One or more of the base stations 105 described herein may include or may be referred to by a person having ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a NodeB, an eNodeB (eNB), a next-generation NodeB or a giga-NodeB (either of which may be referred to as a gNB), a Home NodeB, a Home eNodeB, or other suitable terminology.
A UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where the “device” may also be referred to as a unit, a station, a terminal, or a client, among other examples. A UE 115 may also include or may be referred to as a personal electronic device such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, a UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communications (MTC) device, among other examples, which may be implemented in various objects such as appliances, or vehicles, meters, among other examples.
The UEs 115 described herein may be able to communicate with various types of devices, such as other UEs 115 that may sometimes act as relays as well as the base stations 105 and the network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, or relay base stations, among other examples, as shown in
The UEs 115 and the base stations 105 may wirelessly communicate with one another via one or more communication links 125 over one or more carriers. The term “carrier” may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication links 125. For example, a carrier used for a communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth part (BWP)) that is operated according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling that coordinates operation for the carrier, user data, or other signaling. The wireless communications system 100 may support communication with a UE 115 using carrier aggregation or multi-carrier operation. A UE 115 may be configured with multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used with both frequency division duplexing (FDD) and time division duplexing (TDD) component carriers.
Signal waveforms transmitted over a carrier may be made up of multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)). In a system employing MCM techniques, a resource element may consist of one symbol period (e.g., a duration of one modulation symbol) and one subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the coding rate of the modulation scheme, or both). Thus, the more resource elements that a UE 115 receives and the higher the order of the modulation scheme, the higher the data rate may be for the UE 115. A wireless communications resource may refer to a combination of a radio frequency spectrum resource, a time resource, and a spatial resource (e.g., spatial layers or beams), and the use of multiple spatial layers may further increase the data rate or data integrity for communications with a UE 115.
The time intervals for the base stations 105 or the UEs 115 may be expressed in multiples of a basic time unit which may, for example, refer to a sampling period of Ts=1/(Δfmax·Nf) seconds, where Δfmax may represent the maximum supported subcarrier spacing, and Nf may represent the maximum supported discrete Fourier transform (DFT) size. Time intervals of a communications resource may be organized according to radio frames each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).
Each frame may include multiple consecutively numbered subframes or slots, and each subframe or slot may have the same duration. In some examples, a frame may be divided (e.g., in the time domain) into subframes, and each subframe may be further divided into a number of slots. Alternatively, each frame may include a variable number of slots, and the number of slots may depend on subcarrier spacing. Each slot may include a number of symbol periods (e.g., depending on the length of the cyclic prefix prepended to each symbol period). In some wireless communications systems 100, a slot may further be divided into multiple mini-slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or frequency band of operation.
A subframe, a slot, a mini-slot, or a symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communications system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally, or alternatively, the smallest scheduling unit of the wireless communications system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).
Physical channels may be multiplexed on a carrier according to various techniques. A physical control channel and a physical data channel may be multiplexed on a downlink carrier, for example, using one or more of time division multiplexing (TDM) techniques, frequency division multiplexing (FDM) techniques, or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESETs) may be configured for a set of the UEs 115. For example, one or more of the UEs 115 may monitor or search control regions for control information according to one or more search space sets, and each search space set may include one or multiple control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to a number of control channel resources (e.g., control channel elements (CCEs)) associated with encoded information for a control information format having a given payload size. Search space sets may include common search space sets configured for sending control information to multiple UEs 115 and UE-specific search space sets for sending control information to a specific UE 115.
In some examples, a base station 105 may be movable and therefore provide communication coverage for a moving geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, the overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communications system 100 may include, for example, a heterogeneous network in which different types of the base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.
Some UEs 115 may be configured to employ operating modes that reduce power consumption, such as half-duplex communications (e.g., a mode that supports one-way communication via transmission or reception, but not transmission and reception simultaneously). In some examples, half-duplex communications may be performed at a reduced peak rate. Other power conservation techniques for the UEs 115 include entering a power saving deep sleep mode when not engaging in active communications, operating over a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured for operation using a narrowband protocol type that is associated with a defined portion or range (e.g., set of subcarriers or resource blocks (RBs)) within a carrier, within a guard-band of a carrier, or outside of a carrier.
The wireless communications system 100 may be configured to support ultra-reliable communications or low-latency communications, or various combinations thereof. For example, the wireless communications system 100 may be configured to support ultra-reliable low-latency communications (URLLC) or mission critical communications. The UEs 115 may be designed to support ultra-reliable, low-latency, or critical functions (e.g., mission critical functions). Ultra-reliable communications may include private communication or group communication and may be supported by one or more mission critical services such as mission critical push-to-talk (MCPTT), mission critical video (MCVideo), or mission critical data (MCData). Support for mission critical functions may include prioritization of services, and mission critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low-latency, mission critical, and ultra-reliable low-latency may be used interchangeably herein.
In some examples, a UE 115 may also be able to communicate directly with other UEs 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communications may be within the geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of a base station 105 or be otherwise unable to receive transmissions from a base station 105. In some examples, groups of the UEs 115 communicating via D2D communications may utilize a one-to-many (1:M) system in which each UE 115 transmits to every other UE 115 in the group. In some examples, a base station 105 facilitates the scheduling of resources for D2D communications. In other cases, D2D communications are carried out between the UEs 115 without the involvement of a base station 105.
The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or 5G core (5GC), which may include at least one control plane entity that manages access and mobility (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) and at least one user plane entity that routes packets or interconnects to external networks (e.g., a serving gateway (S-GW), a Packet Data Network (PDN) gateway (P-GW), or a user plane function (UPF)). The control plane entity may manage non-access stratum (NAS) functions such as mobility, authentication, and bearer management for the UEs 115 served by the base stations 105 associated with the core network 130. User IP packets may be transferred through the user plane entity, which may provide IP address allocation as well as other functions. The user plane entity may be connected to IP services 150 for one or more network operators. The IP services 150 may include access to the Internet, Intranet(s), an IP Multimedia Subsystem (IMS), or a Packet-Switched Streaming Service.
Some of the network devices, such as a base station 105, may include subcomponents such as an access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with the UEs 115 through one or more other access network transmission entities 145, which may be referred to as radio heads, smart radio heads, or transmission/reception points (TRPs). Each access network transmission entity 145 may include one or more antenna panels. In some configurations, various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or consolidated into a single network device (e.g., a base station 105).
The wireless communications system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). Generally, the region from 300 MHz to 3 GHz is known as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from approximately one decimeter to one meter in length. The UHF waves may be blocked or redirected by buildings and environmental features, but the waves may penetrate structures sufficiently for a macro cell to provide service to the UEs 115 located indoors. The transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) compared to transmission using the smaller frequencies and longer waves of the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.
The wireless communications system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communications system 100 may employ License Assisted Access (LAA), LTE-Unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band such as the 5 GHz industrial, scientific, and medical (ISM) band. When operating in unlicensed radio frequency spectrum bands, devices such as the base stations 105 and the UEs 115 may employ carrier sensing for collision detection and avoidance. In some examples, operations in unlicensed bands may be based on a carrier aggregation configuration in conjunction with component carriers operating in a licensed band (e.g., LAA). Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among other examples.
A base station 105 or a UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays or antenna panels, which may support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly, such as an antenna tower. In some examples, antennas or antenna arrays associated with a base station 105 may be located in diverse geographic locations. A base station 105 may have an antenna array with a number of rows and columns of antenna ports that the base station 105 may use to support beamforming of communications with a UE 115. Likewise, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations. Additionally, or alternatively, an antenna panel may support radio frequency beamforming for a signal transmitted via an antenna port.
Beamforming, which may also be referred to as spatial filtering, directional transmission, or directional reception, is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining the signals communicated via antenna elements of an antenna array such that some signals propagating at particular orientations with respect to an antenna array experience constructive interference while others experience destructive interference. The adjustment of signals communicated via the antenna elements may include a transmitting device or a receiving device applying amplitude offsets, phase offsets, or both to signals carried via the antenna elements associated with the device. The adjustments associated with each of the antenna elements may be defined by a beamforming weight set associated with a particular orientation (e.g., with respect to the antenna array of the transmitting device or receiving device, or with respect to some other orientation).
A base station 105 or a UE 115 may use beam sweeping techniques as part of beam forming operations. For example, a base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to conduct beamforming operations for directional communications with a UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted by a base station 105 multiple times in different directions. For example, the base station 105 may transmit a signal according to different beamforming weight sets associated with different directions of transmission. Transmissions in different beam directions may be used to identify (e.g., by a transmitting device, such as a base station 105, or by a receiving device, such as a UE 115) a beam direction for later transmission or reception by the base station 105.
Some signals, such as data signals associated with a particular receiving device, may be transmitted by a base station 105 in a single beam direction (e.g., a direction associated with the receiving device, such as a UE 115). In some examples, the beam direction associated with transmissions along a single beam direction may be determined based on a signal that was transmitted in one or more beam directions. For example, a UE 115 may receive one or more of the signals transmitted by the base station 105 in different directions and may report to the base station 105 an indication of the signal that the UE 115 received with a highest signal quality or an otherwise acceptable signal quality.
In some examples, transmissions by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from a base station 105 to a UE 115). The UE 115 may report feedback that indicates precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across a system bandwidth or one or more sub-bands. The base station 105 may transmit a reference signal (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)), which may be precoded or unprecoded. The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a port selection type codebook). Although these techniques are described with reference to signals transmitted in one or more directions by a base station 105, a UE 115 may employ similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction for subsequent transmission or reception by the UE 115) or for transmitting a signal in a single direction (e.g., for transmitting data to a receiving device).
A receiving device (e.g., a UE 115) may try multiple receive configurations (e.g., directional listening) when receiving various signals from the base station 105, such as synchronization signals, reference signals, beam selection signals, or other control signals. For example, a receiving device may try multiple receive directions by receiving via different antenna subarrays, by processing received signals according to different antenna subarrays, by receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or by processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as “listening” according to different receive configurations or receive directions. In some examples, a receiving device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may be aligned in a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have a highest signal strength, highest signal-to-noise ratio (SNR), or otherwise acceptable signal quality based on listening according to multiple beam directions).
The wireless communications system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, communications at the bearer or Packet Data Convergence Protocol (PDCP) layer may be IP-based. A Radio Link Control (RLC) layer may perform packet segmentation and reassembly to communicate over logical channels. A Medium Access Control (MAC) layer may perform priority handling and multiplexing of logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmissions at the MAC layer to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer may provide establishment, configuration, and maintenance of an RRC connection between a UE 115 and a base station 105 or a core network 130 supporting radio bearers for user plane data. At the physical layer, transport channels may be mapped to physical channels.
The UEs 115 and the base stations 105 may support retransmissions of data to increase the likelihood that data is received successfully. Hybrid automatic repeat request (HARQ) feedback is one technique for increasing the likelihood that data is received correctly over a communication link 125. HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve throughput at the MAC layer in poor radio conditions (e.g., low signal-to-noise conditions). In some examples, a device may support same-slot HARQ feedback, where the device may provide HARQ feedback in a specific slot for data received in a previous symbol in the slot. In other cases, the device may provide HARQ feedback in a subsequent slot, or according to some other time interval.
A UE 115 may receive control signaling (e.g., radio resource control (RRC) signaling, downlink control information (DCI), or other signaling) from the base station 105, the control signaling scheduling transmission of a plurality of repetitions of an uplink message (e.g., a message transmitted on a physical uplink shared channel (PUSCH)). The control signaling may also indicate a time gap threshold between at least one pair of adjacent repetitions. The UE 115 may transmit a first repetition of the uplink message, and this transmission may be based on the control signaling received by the UE 115. The UE 115 may also transmit, based on the control signaling, a second repetition of the uplink message. In some examples, such a repetition scheme may be a PUSCH repetition type B. In some examples, the second repetition may be separated in time from transmission of the first repetition of the uplink message by a time gap that may satisfy the time gap threshold (e.g., the time gap is at least the same time duration as the time gap threshold). As such, the UE 115 may communicate with the base station 105 using repetitions while reducing transmission delays.
In some repetition schemes, a symbol of one of the repetitions may be identified as an invalid symbol. In such cases, a nominal repetition (e.g., the first nominal repetition 215 and the second nominal repetition 220) may be divided into actual repetitions after removing the invalid symbols. In some cases, a symbol may be designated as invalid for a variety of reasons (e.g., semi-static downlink symbols that cannot be used as an uplink symbol, an indicated symbol in a pattern of invalid symbols, a synchronization symbol/physical broadcast channel (SS/PBCH) block (SSB) symbol, a symbol where a control resource set (CORESET) such as CORESET0 for type0 physical downlink control channel (PDCCH) is monitored, or for other reasons).
In examples where the UE transmits two sets of nominal repetitions (e.g., the first nominal repetition 315 and the second nominal repetition 320 as a first set, and the third nominal repetition 325 and the fourth nominal repetition 330 as a second set), a UE (such as the UE 115 discussed in relation to
In
In some examples, the UE may receive a DCI that may contain a sounding resource signal (SRS) resource indication (SRI) field. Such a field may indicate one or more resources for SRS. In some examples, each SRS may resource may be configured with spatial relation information (e.g., an uplink beam) which may determine a parameter (e.g., a particular uplink beam) to be used for transmission of the SRS resource. In some examples, the same spatial relation may be used for other transmissions (e.g., PUSCH transmissions) when the corresponding SRS resources are indicated (e.g., when indicating SRS resources through the SRI field of a DCI).
In some examples, the UE may also receive an uplink transmission configuration indication (TCI), which may indicate a TCI state (e.g., an uplink beam) to use for transmissions (e.g., PUSCH transmissions). In some cases, the UE may receive a configuration for a repetition scheme (e.g., a time domain multiplexing scheme with different uplink beams), which may be specified by the TCI or by other indications. The UE may receive indications of different spatial relations (e.g., via SRI or TCI) for scheduling of transmissions (e.g., PUSCH transmissions). In some cases, the UE may receive indications of multiple SRIs, or the UE may receive one or more indications of TCI states. In some examples, the TCI states may include patterns that may be configurable. In some examples, the UE may receive indications of transmissions repetitions, that may be intra-slot or inter-slot. Also, the UE may also receive indications of additional parameters. For example, the UE may receive parameters relating to simultaneous multi-beam uplink transmission. Such parameters may indicate the use of FDM (e.g., the use of different RBs) or spatial domain multiplexing (SDM) (e.g., the use of the same set of RBs). In addition, the UE may receive indications of partial overlaps of time or frequency resources. Further, the UE may receive indications of different PUSCHs (e.g., transport blocks) with different beams. Alternatively, or additionally, the UE may receive indications to use the same PUSCH (e.g., transport block) with multiple beams.
In some examples, the UE may be configured through RRC to insert a number of symbols (e.g., OFDM symbols) as a fixed time gap alongside the time gap created by the UE because of a transmission parameter. In some examples, DCI may be used to indicate a number of symbols that the UE should insert alongside the time gap created by the UE because of a transmission parameter. In some cases, the number of symbols that the UE may insert as part or all of the time gap 345-b may be of a fixed size, regardless of the particular configuration, repetitions, or other factors discussed herein. Such a fixed gap may introduce unnecessary transmission delays.
In addition to inserting the switching gap symbols 340 (and in some examples, in accordance with received signaling such as RRC or DCI), the UE may also invalidate symbols or omit repetitions, or both, to enforce the fixed time gap that may be indicated by RRC, DCI, or other methods. For example, the UE may invalidate symbols, creating the invalid symbols 360 shown in
For example, the UE 115-a may insert a time gap 420 between the first repetition 410 and the second repetition 415. The time gap 420 may satisfy the time gap threshold indicated in the control signaling 405 or indicated in another way. For example, the time gap 420 may be at least as long as the time gap threshold. In some examples, the UE 115-a may satisfy the time gap threshold by including a time gap 420 that is larger than the time gap threshold. In some examples, after receiving the control signaling 405, the UE 115-a may transmit the first repetition 410 based on the control signaling. The UE 115-a may also transmit, based on the control signaling, the second repetition 415. The UE 115-a may transmit the second repetition 415 separated in time from the transmission of the first repetition 410 by the time gap 420. The time gap 420 may satisfy the time gap threshold identified, specified, or otherwise included in the control signaling 405.
In some examples, the UE may receive control signaling that schedules sets of nominal repetitions with different transmission parameters (e.g., different uplink beams, different precoding configurations, or different sets of uplink power control parameters). In some examples, each repetition may be associated with one or more transmission parameters. Further, the control signaling may indicate a time gap threshold (e.g., a number of OFDM or other symbols between nominal repetitions), and the UE may adjust the time gap to satisfy the received time gap threshold. In some cases, the UE may adjust an existing gap (e.g., a gap created by the UE for adjustment of one or more transmission parameters) if the existing gap is smaller than the time gap threshold. In some examples, the time gap threshold may be configured through RRC. In other examples, the time gap threshold may be dynamically indicated (e.g., by DCI). In some cases, the UE may apply or adjust the time gap between each two consecutive nominal repetitions. In some examples, the UE may apply the time gap between two consecutive repetitions when the two consecutive repetitions are associated with different transmission parameters (e.g., one or more transmission parameters of a first repetition differs from one or more transmission parameters of a second repetition). In some cases, the UE may be preconfigured or configured via signaling (e.g., base station or network device signaling) to apply the time gap between each pair of consecutive nominal repetitions, and the UE may then transmit each pair of repetitions with the time gap between them.
Further, the UE may, in some examples, transmit a first repetition using a first set of resources, and transmit the second repetition using a second set of resources. In some examples, the UE may apply the time gap within the first set of resources, the second set of resources, or both. For example, the UE may apply or adjust the gap to include symbols that previously corresponded with the first repetition, the second repetition, or both.
In some examples, applying or adjusting the time gap 545 may leave a single symbol left from the second nominal repetition 520 to form an actual repetition. However, in some examples, such an actual repetition may be omitted based on a rule or configuration, thus forming an omitted repetition, such as omitted repetition 570. In other examples, the omitted repetition 570 may be omitted for other reasons.
In some examples, applying or adjusting the time gap may leave a single symbol left from the third nominal repetition 525 to form an actual repetition. However, in some examples, such an actual repetition may be omitted based on a rule or configuration, thus forming an omitted repetition, such as omitted repetition 570. In other examples, the omitted repetition 570 may be omitted for other reasons.
In some examples, the distribution of gap symbols (e.g., symbols from the repetitions that are invalidated to form the gap) may be determined by making the last |τ/2| symbols of an earlier nominal repetition (e.g., second nominal repetition 520) invalid symbols. In some examples, the first τ−|τ/2| symbols of a later nominal repetition (e.g., third nominal repetition 525) are invalidated. In this way, the time gap 545 may be formed by invalidating symbols from consecutive repetitions. Alternatively, or additionally, the distribution of the gap symbols between two nominal repetitions may be configured (e.g., through RRC configuration) or may be dynamically indicated (e.g., dynamically indicated through DCI).
In some examples, the UE may receive control signaling that may schedule sets of nominal repetitions with different transmission parameters (e.g., different uplink beams, different precoding configurations, or different sets of uplink power control parameters). Further, the control signaling may indicate a time gap threshold (e.g., a number of OFDM or other symbols to be inserted between repetitions), and the UE may adjust the time gap to satisfy the received time gap threshold. In some cases, the UE may adjust an existing gap (e.g., the gap created by the UE for adjustment of one or more transmission parameters) if the existing gap is smaller than the time gap threshold. In some examples, the time gap threshold may be configured through RRC. In other examples, the time gap threshold may be dynamically indicated (e.g., by DCI). In some examples, the time gap may be applied between actual repetitions. In some cases, the UE may apply or adjust the time gap between each two consecutive actual repetitions, and, in some cases, the two consecutive repetitions may be associated with different transmission parameters. In some examples, the UE may apply or adjust the gap if an existing gap between actual repetitions (e.g., designated by τ′) is less than the time gap threshold (e.g., designated by τ). For example, if the existing gap is one symbol, and the time gap threshold is three symbols, the gap may be applied or enforced through approaches described herein. In some examples, an error case may be identified or declared if a number of symbols in an actual repetition is less than a number of symbols determined to be invalidated to form a time gap. In the case of such an error, the UE may adjust the configuration in any number of ways to avoid the error case (e.g., a distribution of symbols identified to be invalidated may be adjusted to avoid the error case).
In some cases, and as shown in
In some cases, a number of symbols from a later repetition (e.g., the second actual repetition 735) may be invalidated to form a portion of the time gap 755. In some examples, a number of symbols to be invalidated from a later repetition may be derived from the time gap threshold (τ) and the existing actual repetition gap 740 (τ′). For example, the UE may apply or adjust the time gap 755 by making the first τ−τ′ symbols of the later actual repetition (e.g., the second actual repetition 735) invalid symbols. For example, assuming a gap threshold (τ) of two symbols and an existing actual repetition gap 740 of one symbol, the first one symbol of the second actual repetition 735 would be invalidated to create the time gap 755 of two symbols that satisfies the time gap threshold.
In some cases, the UE may invalidate a number of symbols from both an earlier repetition (e.g., the first actual repetition 730) and a later repetition (e.g., the second actual repetition 735) to form a portion of the time gap 755. In some examples, a number of symbols to be invalidated by the UE from both repetitions may be derived from the time gap threshold (τ) and the existing actual repetition gap 740 (τ′). For example, the UE may force the time gap 755 by making the last
symbols of the earlier actual repetition (e.g., the first actual repetition 730) invalid symbols and making the
first symbols of the later actual repetition (e.g., the second actual repetition 735) invalid.
In yet other examples, a distribution of symbols to be invalidated between two actual repetitions may be configured (e.g., configured through RRC) or dynamically indicated (e.g., dynamically indicated through DCI).
At 815, the UE 115-a may receive control signaling scheduling transmission of a plurality of repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions.
In some cases, receiving the control signaling may include receiving the control signaling indicating the first transmission parameter that may specify a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that may specify a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
In some cases, receiving the control signaling may include receiving the control signaling indicating the first transmission parameter that may specify a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that may specify a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
In some cases, receiving the control signaling may include receiving the control signaling indicating the first transmission parameter that may specify a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that may specify a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
In some cases, receiving the control signaling may include receiving a first control message scheduling the plurality of repetitions of the uplink message and a second control message indicating the time gap threshold.
In some cases, the control signaling may include RRC signaling. In some cases, the control signaling may include DCI. In some cases, the control signaling may include other types of control signaling.
At 820, the UE 115-a may identify a configured gap between a first repetition and a second repetition. In some cases, the configured gap may be recognized as being between a first sub-repetition and a second sub-repetition.
At 825, the UE 115-a may transmit a first repetition of the uplink message based on the control signaling. In some cases, transmitting the first repetition of the uplink message may include transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, wherein the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition. In some cases, transmitting the first repetition of the uplink message may include transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold. For example, symbols from an earlier repetition may be invalidated as discussed in more detail with reference to at least
In some cases, where the first repetition is a first sub-repetition, the UE may transmit the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first sub-repetition corresponding to the time gap threshold.
At 835, the UE 115-a may transmit, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by the time gap (e.g., the time gap at 830) satisfying the time gap threshold.
In some cases, transmitting the second repetition of the uplink message may include transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, wherein the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition. Further, transmitting the second repetition of the uplink message may include transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold. For example, symbols from a later repetition may be invalidated as discussed in more detail with reference to at least
In some cases, where the second repetition is a second sub-repetition, the UE may transmit the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second sub-repetition corresponding to the time gap threshold.
In some cases, transmitting the first repetition may include transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold, and transmitting the second repetition may include transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold. For example, symbols may be invalidated from both an earlier and a later repetition, as discussed in more detail with reference to
In some cases, transmitting the second repetition of the uplink message may include transmitting the second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by the time gap based on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message. For example, the first repetition may be transmitted using a first beam, and the second transmission may be transmitted using a second beam.
In some cases, transmitting the first and second repetitions of the uplink message may include transmitting each repetition of the uplink message having the time gap between each pair of consecutive repetitions of the plurality of repetitions. For example, in a series of 3 repetitions, there may be a time gap placed in between each pair of repetitions, such that a series of transmissions may have, in order, a first repetition, a first time gap, a second repetition, a second time gap, and a third repetition. The approaches and techniques described herein may be applied to any number of repetitions.
In some cases, transmitting the first repetition may include transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based at least in part on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary, and transmitting the second repetition comprises transmitting the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
In some cases, the UE may determine that the first repetition is a first sub-repetition and that the second repetition is a second sub-repetition. In such cases, transmitting the first repetition and the second repetition may include transmitting the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the plurality of repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
In some cases, the first repetition may be a first nominal repetition and the second repetition may be a second nominal repetition. For example, as discussed with reference to
In some cases, each uplink message repetition may be associated with a corresponding transmission parameter. For example, each repetition may be associated with different uplink beams, different precoding configurations, or different sets of uplink power control parameters.
In some cases, the first repetition may be a first sub-repetition of a third repetition of a plurality of repetitions, and the second repetition may be a second sub-repetition of the third repetition. Further, in some cases, the first sub-repetition may be a first actual repetition and the second sub-repetition may be a second actual repetition. For example, as discussed in
The receiver 910 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). Information may be passed on to other components of the device 905. The receiver 910 may utilize a single antenna or a set of multiple antennas.
The transmitter 915 may provide a means for transmitting signals generated by other components of the device 905. For example, the transmitter 915 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). In some examples, the transmitter 915 may be co-located with a receiver 910 in a transceiver module. The transmitter 915 may utilize a single antenna or a set of multiple antennas.
The communications manager 920, the receiver 910, the transmitter 915, or various combinations thereof or various components thereof may be examples of means for performing various aspects of time gap enhancement for message repetition as described herein. For example, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may support a method for performing one or more of the functions described herein.
In some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include a processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).
Additionally, or alternatively, in some examples, the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by a processor. If implemented in code executed by a processor, the functions of the communications manager 920, the receiver 910, the transmitter 915, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a central processing unit (CPU), an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in the present disclosure).
In some examples, the communications manager 920 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 910, the transmitter 915, or both. For example, the communications manager 920 may receive information from the receiver 910, send information to the transmitter 915, or be integrated in combination with the receiver 910, the transmitter 915, or both to receive information, transmit information, or perform various other operations as described herein.
The communications manager 920 may support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 920 may be configured as or otherwise support a means for receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The communications manager 920 may be configured as or otherwise support a means for transmitting a first repetition of the uplink message based on the control signaling. The communications manager 920 may be configured as or otherwise support a means for transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
By including or configuring the communications manager 920 in accordance with examples as described herein, the device 905 (e.g., a processor controlling or otherwise coupled to the receiver 910, the transmitter 915, the communications manager 920, or a combination thereof) may support techniques for reduced processing, reduced power consumption, or more efficient utilization of communication resources.
The receiver 1010 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). Information may be passed on to other components of the device 1005. The receiver 1010 may utilize a single antenna or a set of multiple antennas.
The transmitter 1015 may provide a means for transmitting signals generated by other components of the device 1005. For example, the transmitter 1015 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). In some examples, the transmitter 1015 may be co-located with a receiver 1010 in a transceiver module. The transmitter 1015 may utilize a single antenna or a set of multiple antennas.
The device 1005, or various components thereof, may be an example of means for performing various aspects of time gap enhancement for message repetition as described herein. For example, the communications manager 1020 may include a control signaling manager 1025 a transmission manager 1030, or any combination thereof. The communications manager 1020 may be an example of aspects of a communications manager 920 as described herein. In some examples, the communications manager 1020, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 1010, the transmitter 1015, or both. For example, the communications manager 1020 may receive information from the receiver 1010, send information to the transmitter 1015, or be integrated in combination with the receiver 1010, the transmitter 1015, or both to receive information, transmit information, or perform various other operations as described herein.
The communications manager 1020 may support wireless communication at a UE in accordance with examples as disclosed herein. The control signaling manager 1025 may be configured as or otherwise support a means for receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The transmission manager 1030 may be configured as or otherwise support a means for transmitting a first repetition of the uplink message based on the control signaling. The transmission manager 1030 may be configured as or otherwise support a means for transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
The communications manager 1120 may support wireless communication at a UE in accordance with examples as disclosed herein. The control signaling manager 1125 may be configured as or otherwise support a means for receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The transmission manager 1130 may be configured as or otherwise support a means for transmitting a first repetition of the uplink message based on the control signaling. In some examples, the transmission manager 1130 may be configured as or otherwise support a means for transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
In some examples, to support transmitting the first and second repetitions of the uplink message, the transmission manager 1130 may be configured as or otherwise support a means for transmitting one or more repetitions of the uplink message having the time gap between one or more pairs of consecutive repetitions of the plurality of repetitions.
In some examples, to support transmitting the second repetition of the uplink message, the transmission parameter manager 1135 may be configured as or otherwise support a means for transmitting the second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by the time gap based on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message.
In some examples, to support receiving the control signaling, the control signaling manager 1125 may be configured as or otherwise support a means for receiving the control signaling indicating the first transmission parameter that specifies a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
In some examples, to support receiving the control signaling, the control signaling manager 1125 may be configured as or otherwise support a means for receiving the control signaling indicating the first transmission parameter that specifies a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
In some examples, to support receiving the control signaling, the control signaling manager 1125 may be configured as or otherwise support a means for receiving the control signaling indicating the first transmission parameter that specifies a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
In some examples, to support transmitting the first repetition of the uplink message, the transmission manager 1130 may be configured as or otherwise support a means for transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition.
In some examples, to support transmitting the first repetition of the uplink message, the transmission manager 1130 may be configured as or otherwise support a means for transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold.
In some examples, to support transmitting the second repetition of the uplink message, the transmission manager 1130 may be configured as or otherwise support a means for transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition.
In some examples, to support transmitting the second repetition of the uplink message, the transmission manager 1130 may be configured as or otherwise support a means for transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold.
In some examples, transmitting the first repetition includes transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold. In some examples, transmitting the second repetition includes transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold.
In some examples, one or more of the uplink message repetitions are associated with a corresponding transmission parameter.
In some examples, the first repetition is a first sub-repetition of a third repetition of the set of multiple repetitions and the second repetition is a second sub-repetition of the third repetition.
In some examples, the sub-repetition manager 1140 may be configured as or otherwise support a means for where the first sub-repetition is a first actual repetition and the second sub-repetition is a second actual repetition.
In some examples, to support transmitting the first sub-repetition of the uplink message, the sub-repetition manager 1140 may be configured as or otherwise support a means for identifying a configured gap between the first sub-repetition and the second sub-repetition. In some examples, to support transmitting the first sub-repetition of the uplink message, the sub-repetition manager 1140 may be configured as or otherwise support a means for transmitting the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first sub-repetition corresponding to the time gap threshold.
In some examples, to support transmitting the second sub-repetition of the uplink message, the sub-repetition manager 1140 may be configured as or otherwise support a means for identifying a configured gap between the first sub-repetition and the second sub-repetition. In some examples, to support transmitting the second sub-repetition of the uplink message, the sub-repetition manager 1140 may be configured as or otherwise support a means for transmitting the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second sub-repetition corresponding to the time gap threshold.
In some examples, the slot boundary manager 1145 may be configured as or otherwise support a means for transmitting the first repetition includes transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary. In some examples, the slot boundary manager 1145 may be configured as or otherwise support a means for transmitting the second repetition includes transmitting the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
In some examples, the sub-repetition manager 1140 may be configured as or otherwise support a means for determining that the first repetition is a first sub-repetition and that the second repetition is a second sub-repetition. In some examples, the sub-repetition manager 1140 may be configured as or otherwise support a means for where transmitting the first repetition and the second repetition includes transmitting the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the set of multiple repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
In some examples, the first repetition is a first nominal repetition and the second repetition is a second nominal repetition.
In some examples, to support receiving the control signaling, the control signaling manager 1125 may be configured as or otherwise support a means for receiving a first control message scheduling the set of multiple repetitions of the uplink message and a second control message indicating the time gap threshold.
In some examples, the control signaling includes radio resource control signaling.
In some examples, the control signaling includes downlink control information.
The I/O controller 1210 may manage input and output signals for the device 1205. The I/O controller 1210 may also manage peripherals not integrated into the device 1205. In some cases, the I/O controller 1210 may represent a physical connection or port to an external peripheral. In some cases, the I/O controller 1210 may utilize an operating system such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, or another known operating system. Additionally, or alternatively, the I/O controller 1210 may represent or interact with a modem, a keyboard, a mouse, a touchscreen, or a similar device. In some cases, the I/O controller 1210 may be implemented as part of a processor, such as the processor 1240. In some cases, a user may interact with the device 1205 via the I/O controller 1210 or via hardware components controlled by the I/O controller 1210.
In some cases, the device 1205 may include a single antenna 1225. However, in some other cases, the device 1205 may have more than one antenna 1225, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1215 may communicate bi-directionally, via the one or more antennas 1225, wired, or wireless links as described herein. For example, the transceiver 1215 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1215 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1225 for transmission, and to demodulate packets received from the one or more antennas 1225. The transceiver 1215, or the transceiver 1215 and one or more antennas 1225, may be an example of a transmitter 915, a transmitter 1015, a receiver 910, a receiver 1010, or any combination thereof or component thereof, as described herein.
The memory 1230 may include random access memory (RAM) and read-only memory (ROM). The memory 1230 may store computer-readable, computer-executable code 1235 including instructions that, when executed by the processor 1240, cause the device 1205 to perform various functions described herein. The code 1235 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1235 may not be directly executable by the processor 1240 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 1230 may contain, among other things, a basic I/O system (BIOS) which may control basic hardware or software operation such as the interaction with peripheral components or devices.
The processor 1240 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1240 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the processor 1240. The processor 1240 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1230) to cause the device 1205 to perform various functions (e.g., functions or tasks supporting time gap enhancement for message repetition). For example, the device 1205 or a component of the device 1205 may include a processor 1240 and memory 1230 coupled to the processor 1240, the processor 1240 and memory 1230 configured to perform various functions described herein.
The communications manager 1220 may support wireless communication at a UE in accordance with examples as disclosed herein. For example, the communications manager 1220 may be configured as or otherwise support a means for receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The communications manager 1220 may be configured as or otherwise support a means for transmitting a first repetition of the uplink message based on the control signaling. The communications manager 1220 may be configured as or otherwise support a means for transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
By including or configuring the communications manager 1220 in accordance with examples as described herein, the device 1205 may support techniques for improved communication reliability, reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, or improved utilization of processing capability.
In some examples, the communications manager 1220 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1215, the one or more antennas 1225, or any combination thereof. Although the communications manager 1220 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1220 may be supported by or performed by the processor 1240, the memory 1230, the code 1235, or any combination thereof. For example, the code 1235 may include instructions executable by the processor 1240 to cause the device 1205 to perform various aspects of time gap enhancement for message repetition as described herein, or the processor 1240 and the memory 1230 may be otherwise configured to perform or support such operations.
The receiver 1310 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). Information may be passed on to other components of the device 1305. The receiver 1310 may utilize a single antenna or a set of multiple antennas.
The transmitter 1315 may provide a means for transmitting signals generated by other components of the device 1305. For example, the transmitter 1315 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). In some examples, the transmitter 1315 may be co-located with a receiver 1310 in a transceiver module. The transmitter 1315 may utilize a single antenna or a set of multiple antennas.
The communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations thereof or various components thereof may be examples of means for performing various aspects of time gap enhancement for message repetition as described herein. For example, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may support a method for performing one or more of the functions described herein.
In some examples, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be implemented in hardware (e.g., in communications management circuitry). The hardware may include a processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic, discrete hardware components, or any combination thereof configured as or otherwise supporting a means for performing the functions described in the present disclosure. In some examples, a processor and memory coupled with the processor may be configured to perform one or more of the functions described herein (e.g., by executing, by the processor, instructions stored in the memory).
Additionally, or alternatively, in some examples, the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be implemented in code (e.g., as communications management software or firmware) executed by a processor. If implemented in code executed by a processor, the functions of the communications manager 1320, the receiver 1310, the transmitter 1315, or various combinations or components thereof may be performed by a general-purpose processor, a DSP, a CPU, an ASIC, an FPGA, or any combination of these or other programmable logic devices (e.g., configured as or otherwise supporting a means for performing the functions described in the present disclosure).
In some examples, the communications manager 1320 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 1310, the transmitter 1315, or both. For example, the communications manager 1320 may receive information from the receiver 1310, send information to the transmitter 1315, or be integrated in combination with the receiver 1310, the transmitter 1315, or both to receive information, transmit information, or perform various other operations as described herein.
The communications manager 1320 may support wireless communication at a base station in accordance with examples as disclosed herein. For example, the communications manager 1320 may be configured as or otherwise support a means for transmitting control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The communications manager 1320 may be configured as or otherwise support a means for receiving a first repetition of the uplink message based on the control signaling. The communications manager 1320 may be configured as or otherwise support a means for receiving, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
By including or configuring the communications manager 1320 in accordance with examples as described herein, the device 1305 (e.g., a processor controlling or otherwise coupled to the receiver 1310, the transmitter 1315, the communications manager 1320, or a combination thereof) may support techniques for reduced processing, reduced power consumption, or more efficient utilization of communication resources.
The receiver 1410 may provide a means for receiving information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). Information may be passed on to other components of the device 1405. The receiver 1410 may utilize a single antenna or a set of multiple antennas.
The transmitter 1415 may provide a means for transmitting signals generated by other components of the device 1405. For example, the transmitter 1415 may transmit information such as packets, user data, control information, or any combination thereof associated with various information channels (e.g., control channels, data channels, information channels related to time gap enhancement for message repetition). In some examples, the transmitter 1415 may be co-located with a receiver 1410 in a transceiver module. The transmitter 1415 may utilize a single antenna or a set of multiple antennas.
The device 1405, or various components thereof, may be an example of means for performing various aspects of time gap enhancement for message repetition as described herein. For example, the communications manager 1420 may include a control signaling component 1425 a reception component 1430, or any combination thereof. The communications manager 1420 may be an example of aspects of a communications manager 1320 as described herein. In some examples, the communications manager 1420, or various components thereof, may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the receiver 1410, the transmitter 1415, or both. For example, the communications manager 1420 may receive information from the receiver 1410, send information to the transmitter 1415, or be integrated in combination with the receiver 1410, the transmitter 1415, or both to receive information, transmit information, or perform various other operations as described herein.
The communications manager 1420 may support wireless communication at a base station in accordance with examples as disclosed herein. The control signaling component 1425 may be configured as or otherwise support a means for transmitting control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The reception component 1430 may be configured as or otherwise support a means for receiving a first repetition of the uplink message based on the control signaling. The reception component 1430 may be configured as or otherwise support a means for receiving, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
The communications manager 1520 may support wireless communication at a base station in accordance with examples as disclosed herein. The control signaling component 1525 may be configured as or otherwise support a means for transmitting control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The reception component 1530 may be configured as or otherwise support a means for receiving a first repetition of the uplink message based on the control signaling. In some examples, the reception component 1530 may be configured as or otherwise support a means for receiving, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
In some examples, to support receiving the first and second repetitions of the uplink message, the reception component 1530 may be configured as or otherwise support a means for receiving one or more repetitions of the uplink message having the time gap between one or more pairs of consecutive repetitions of the plurality of repetitions.
In some examples, to support receiving the second repetition of the uplink message, the transmission parameter component 1535 may be configured as or otherwise support a means for receiving the second repetition of the uplink message separated in time from reception of the first repetition of the uplink message by the time gap based on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message.
In some examples, to support transmitting the control signaling, the control signaling component 1525 may be configured as or otherwise support a means for transmitting the control signaling indicating the first transmission parameter that specifies a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
In some examples, to support transmitting the control signaling, the control signaling component 1525 may be configured as or otherwise support a means for transmitting the control signaling indicating the first transmission parameter that specifies a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
In some examples, to support transmitting the control signaling, the control signaling component 1525 may be configured as or otherwise support a means for transmitting the control signaling indicating the first transmission parameter that specifies a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
In some examples, to support receiving the first repetition, the reception component 1530 may be configured as or otherwise support a means for receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition.
In some examples, to support receiving the first repetition of the uplink message, the reception component 1530 may be configured as or otherwise support a means for receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition.
In some examples, to support receiving the second repetition, the reception component 1530 may be configured as or otherwise support a means for receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition.
In some examples, to support receiving the second repetition of the uplink message, the reception component 1530 may be configured as or otherwise support a means for receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, where the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition.
In some examples, receiving the first repetition includes receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition. In some examples, receiving the second repetition includes receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition.
In some examples, one or more of the uplink message repetitions are associated with a corresponding transmission parameter.
In some examples, the first repetition is a first sub-repetition of a third repetition of the set of multiple repetitions and the second repetition is a second sub-repetition of the third repetition.
In some examples, the sub-repetition component 1540 may be configured as or otherwise support a means for where the first sub-repetition is a first actual repetition and the second sub-repetition is a second actual repetition.
In some examples, to support receiving the first sub-repetition of the uplink message, the sub-repetition component 1540 may be configured as or otherwise support a means for receiving the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based on a configured gap between the first sub-repetition and the second sub-repetition.
In some examples, to support receiving the second sub-repetition of the uplink message, the sub-repetition component 1540 may be configured as or otherwise support a means for receiving the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based on a configured gap between the first sub-repetition and the second sub-repetition.
In some examples, receiving the first repetition includes receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary. In some examples, receiving the second repetition includes receiving the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
In some examples, the sub-repetition component 1540 may be configured as or otherwise support a means for identifying that the first repetition is a first sub-repetition and that the second repetition is a second sub-repetition. In some examples, the sub-repetition component 1540 may be configured as or otherwise support a means for where receiving the first repetition and the second repetition includes receiving the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the set of multiple repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
In some examples, the first repetition is a first nominal repetition and the second repetition is a second nominal repetition.
In some examples, to support transmitting the control signaling, the control signaling component 1525 may be configured as or otherwise support a means for transmitting a first control message scheduling the set of multiple repetitions of the uplink message and a second control message indicating the time gap threshold.
In some examples, the control signaling includes radio resource control signaling.
In some examples, the control signaling includes downlink control information.
The network communications manager 1610 may manage communications with a core network 130 (e.g., via one or more wired backhaul links). For example, the network communications manager 1610 may manage the transfer of data communications for client devices, such as one or more UEs 115.
In some cases, the device 1605 may include a single antenna 1625. However, in some other cases the device 1605 may have more than one antenna 1625, which may be capable of concurrently transmitting or receiving multiple wireless transmissions. The transceiver 1615 may communicate bi-directionally, via the one or more antennas 1625, wired, or wireless links as described herein. For example, the transceiver 1615 may represent a wireless transceiver and may communicate bi-directionally with another wireless transceiver. The transceiver 1615 may also include a modem to modulate the packets, to provide the modulated packets to one or more antennas 1625 for transmission, and to demodulate packets received from the one or more antennas 1625. The transceiver 1615, or the transceiver 1615 and one or more antennas 1625, may be an example of a transmitter 1315, a transmitter 1415, a receiver 1310, a receiver 1410, or any combination thereof or component thereof, as described herein.
The memory 1630 may include RAM and ROM. The memory 1630 may store computer-readable, computer-executable code 1635 including instructions that, when executed by the processor 1640, cause the device 1605 to perform various functions described herein. The code 1635 may be stored in a non-transitory computer-readable medium such as system memory or another type of memory. In some cases, the code 1635 may not be directly executable by the processor 1640 but may cause a computer (e.g., when compiled and executed) to perform functions described herein. In some cases, the memory 1630 may contain, among other things, a BIOS which may control basic hardware or software operation such as the interaction with peripheral components or devices.
The processor 1640 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 1640 may be configured to operate a memory array using a memory controller. In some other cases, a memory controller may be integrated into the processor 1640. The processor 1640 may be configured to execute computer-readable instructions stored in a memory (e.g., the memory 1630) to cause the device 1605 to perform various functions (e.g., functions or tasks supporting time gap enhancement for message repetition). For example, the device 1605 or a component of the device 1605 may include a processor 1640 and memory 1630 coupled to the processor 1640, the processor 1640 and memory 1630 configured to perform various functions described herein.
The inter-station communications manager 1645 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UEs 115 in cooperation with other base stations 105. For example, the inter-station communications manager 1645 may coordinate scheduling for transmissions to UEs 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-station communications manager 1645 may provide an X2 interface within an LTE/LTE-A wireless communications network technology to provide communication between base stations 105.
The communications manager 1620 may support wireless communication at a base station in accordance with examples as disclosed herein. For example, the communications manager 1620 may be configured as or otherwise support a means for transmitting control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The communications manager 1620 may be configured as or otherwise support a means for receiving a first repetition of the uplink message based on the control signaling. The communications manager 1620 may be configured as or otherwise support a means for receiving, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
By including or configuring the communications manager 1620 in accordance with examples as described herein, the device 1605 may support techniques for improved communication reliability, reduced latency, improved user experience related to reduced processing, reduced power consumption, more efficient utilization of communication resources, improved coordination between devices, longer battery life, or improved utilization of processing capability.
In some examples, the communications manager 1620 may be configured to perform various operations (e.g., receiving, monitoring, transmitting) using or otherwise in cooperation with the transceiver 1615, the one or more antennas 1625, or any combination thereof. Although the communications manager 1620 is illustrated as a separate component, in some examples, one or more functions described with reference to the communications manager 1620 may be supported by or performed by the processor 1640, the memory 1630, the code 1635, or any combination thereof. For example, the code 1635 may include instructions executable by the processor 1640 to cause the device 1605 to perform various aspects of time gap enhancement for message repetition as described herein, or the processor 1640 and the memory 1630 may be otherwise configured to perform or support such operations.
At 1705, the method may include receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The operations of 1705 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1705 may be performed by a control signaling manager 1125 as described with reference to
At 1710, the method may include transmitting a first repetition of the uplink message based on the control signaling. The operations of 1710 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1710 may be performed by a transmission manager 1130 as described with reference to
At 1715, the method may include transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold. The operations of 1715 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1715 may be performed by a transmission manager 1130 as described with reference to
At 1805, the method may include receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The operations of 1805 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1805 may be performed by a control signaling manager 1125 as described with reference to
At 1810, the method may include transmitting a first repetition of the uplink message based on the control signaling. The operations of 1810 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1810 may be performed by a transmission manager 1130 as described with reference to
At 1815, the method may include transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold. The operations of 1815 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1815 may be performed by a transmission manager 1130 as described with reference to
At 1820, the method may include transmitting the first repetition includes transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold. The operations of 1820 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1820 may be performed by a transmission manager 1130 as described with reference to
At 1825, the method may include transmitting the second repetition includes transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold. The operations of 1825 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1825 may be performed by a transmission manager 1130 as described with reference to
At 1905, the method may include receiving control signaling scheduling transmission of a set of multiple repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions. The operations of 1905 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1905 may be performed by a control signaling manager 1125 as described with reference to
At 1910, the method may include transmitting a first repetition of the uplink message based on the control signaling. The operations of 1910 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1910 may be performed by a transmission manager 1130 as described with reference to
At 1915, the method may include transmitting, based on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold. The operations of 1915 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1915 may be performed by a transmission manager 1130 as described with reference to
At 1920, the method may include determining that the first repetition is a first sub-repetition and that the second repetition is a second sub-repetition. The operations of 1920 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1920 may be performed by a sub-repetition manager 1140 as described with reference to
At 1925, the method may include where transmitting the first repetition and the second repetition includes transmitting the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the set of multiple repetitions, the first subset of resources separated in time by the time gap from the second subset of resources. The operations of 1925 may be performed in accordance with examples as disclosed herein. In some examples, aspects of the operations of 1925 may be performed by a sub-repetition manager 1140 as described with reference to
The following provides an overview of aspects of the present disclosure:
Aspect 1: A method for wireless communication at a UE, comprising: receiving control signaling scheduling transmission of a plurality of repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions; transmitting a first repetition of the uplink message based at least in part on the control signaling; and transmitting, based at least in part on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying the time gap threshold.
Aspect 2: The method of aspect 1, wherein transmitting the first and second repetitions of the uplink message comprises: transmitting each repetition of the uplink message having the time gap between each pair of consecutive repetitions of the plurality of repetitions.
Aspect 3: The method of any of aspects 1 through 2, wherein transmitting the second repetition of the uplink message comprises: transmitting the second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by the time gap based at least in part on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message.
Aspect 4: The method of aspect 3, wherein receiving the control signaling comprises: receiving the control signaling indicating the first transmission parameter that specifies a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
Aspect 5: The method of any of aspects 3 through 4, wherein receiving the control signaling comprises: receiving the control signaling indicating the first transmission parameter that specifies a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
Aspect 6: The method of any of aspects 3 through 5, wherein receiving the control signaling comprises: receiving the control signaling indicating the first transmission parameter that specifies a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
Aspect 7: The method of any of aspects 1 through 6, wherein transmitting the first repetition of the uplink message comprises: transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, wherein the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition.
Aspect 8: The method of aspect 7, wherein transmitting the first repetition of the uplink message further comprises: transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based at least in part on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold.
Aspect 9: The method of any of aspects 1 through 8, wherein transmitting the second repetition of the uplink message comprises: transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, wherein the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition.
Aspect 10: The method of aspect 9, wherein transmitting the second repetition of the uplink message further comprises: transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based at least in part on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold.
Aspect 11: The method of any of aspects 1 through 10, wherein transmitting the first repetition comprises transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based at least in part on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first repetition corresponding to the time gap threshold; and transmitting the second repetition comprises transmitting the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition based at least in part on invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second repetition corresponding to the time gap threshold.
Aspect 12: The method of any of aspects 1 through 11, wherein one or more of the uplink message repetitions are associated with a corresponding transmission parameter.
Aspect 13: The method of any of aspects 1 through 12, wherein the first repetition is a first sub-repetition of a third repetition of the plurality of repetitions and the second repetition is a second sub-repetition of the third repetition.
Aspect 14: The method of aspect 13, further comprising: wherein the first sub-repetition is a first actual repetition and the second sub-repetition is a second actual repetition.
Aspect 15: The method of any of aspects 13 through 14, wherein transmitting the first sub-repetition of the uplink message comprises: identifying a configured gap between the first sub-repetition and the second sub-repetition; and transmitting the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based at least in part on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the first sub-repetition corresponding to the time gap threshold.
Aspect 16: The method of any of aspects 13 through 15, wherein transmitting the second sub-repetition of the uplink message comprises: identifying a configured gap between the first sub-repetition and the second sub-repetition; and transmitting the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based at least in part on the configured gap and invalidating one or more symbols within a second subset of resources indicated by the control signaling for the second sub-repetition corresponding to the time gap threshold.
Aspect 17: The method of any of aspects 1 through 16, further comprising: transmitting the first repetition comprises transmitting the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based at least in part on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary; and transmitting the second repetition comprises transmitting the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
Aspect 18: The method of any of aspects 1 through 17, further comprising: determining that the first repetition is a first sub-repetition and that the second repetition is a second sub-repetition; wherein transmitting the first repetition and the second repetition comprises transmitting the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the plurality of repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
Aspect 19: The method of any of aspects 1 through 18, wherein the first repetition is a first nominal repetition and the second repetition is a second nominal repetition.
Aspect 20: The method of any of aspects 1 through 19, wherein receiving the control signaling comprises: receiving a first control message scheduling the plurality of repetitions of the uplink message and a second control message indicating the time gap threshold.
Aspect 21: The method of any of aspects 1 through 20, wherein the control signaling comprises radio resource control signaling.
Aspect 22: The method of any of aspects 1 through 21, wherein the control signaling comprises downlink control information.
Aspect 23: A method for wireless communication at a base station, comprising: transmitting control signaling scheduling transmission of a plurality of repetitions of an uplink message and indicating a time gap threshold between at least one pair of adjacent repetitions; receiving a first repetition of the uplink message based at least in part on the control signaling; and receiving, based at least in part on the control signaling, a second repetition of the uplink message separated in time from transmission of the first repetition of the uplink message by a time gap satisfying to the time gap threshold.
Aspect 24: The method of aspect 23, wherein receiving the first and second repetitions of the uplink message comprises: receiving each repetition of the uplink message having the time gap between each pair of consecutive repetitions of the plurality of repetitions.
Aspect 25: The method of any of aspects 23 through 24, wherein receiving the second repetition of the uplink message comprises: receiving the second repetition of the uplink message separated in time from reception of the first repetition of the uplink message by the time gap based at least in part on a first transmission parameter configured for transmission of the first repetition of the uplink message differing from a second transmission parameter configured for transmission of the second repetition of the uplink message.
Aspect 26: The method of aspect 25, wherein transmitting the control signaling comprises: transmitting the control signaling indicating the first transmission parameter that specifies a first uplink transmission beam for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second uplink transmission beam for transmission of the second repetition of the uplink message that differs from the first uplink transmission beam.
Aspect 27: The method of any of aspects 25 through 26, wherein transmitting the control signaling comprises: transmitting the control signaling indicating the first transmission parameter that specifies a first precoding indication for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second precoding indication for transmission of the second repetition of the uplink message that differs from the first precoding indication.
Aspect 28: The method of any of aspects 25 through 27, wherein transmitting the control signaling comprises: transmitting the control signaling indicating the first transmission parameter that specifies a first power control parameter for transmission of the first repetition of the uplink message and the second transmission parameter that specifies a second power control parameter for transmission of the second repetition of the uplink message that differs from the first power control parameter.
Aspect 29: The method of any of aspects 23 through 28, wherein receiving the first repetition comprises: receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition.
Aspect 30: The method of aspect 29, wherein receiving the first repetition of the uplink message further comprises: receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition, wherein the time gap corresponds to a second subset of resources indicated by the control signaling for the first repetition.
Aspect 31: The method of any of aspects 23 through 30, wherein receiving the second repetition comprises: receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition.
Aspect 32: The method of aspect 31, wherein receiving the second repetition of the uplink message further comprises: receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition, wherein the time gap corresponds to a second subset of resources indicated by the control signaling for the second repetition.
Aspect 33: The method of any of aspects 23 through 32, wherein receiving the first repetition comprises receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition; and receiving the second repetition comprises receiving the second repetition of the uplink message within a first subset of resources indicated by the control signaling for the second repetition.
Aspect 34: The method of any of aspects 23 through 33, wherein one or more of the uplink message repetitions are associated with a corresponding transmission parameter.
Aspect 35: The method of any of aspects 23 through 34, wherein the first repetition is a first sub-repetition of a third repetition of the plurality of repetitions and the second repetition is a second sub-repetition of the third repetition.
Aspect 36: The method of aspect 35, further comprising: wherein the first sub-repetition is a first actual repetition and the second sub-repetition is a second actual repetition.
Aspect 37: The method of any of aspects 35 through 36, wherein receiving the first sub-repetition of the uplink message comprises: receiving the first sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the first sub-repetition based at least in part on a configured gap between the first sub-repetition and the second sub-repetition.
Aspect 38: The method of any of aspects 35 through 37, wherein receiving the second sub-repetition of the uplink message comprises: receiving the second sub-repetition of the uplink message within a first subset of resources indicated by the control signaling for the second sub-repetition based at least in part on a configured gap between the first sub-repetition and the second sub-repetition.
Aspect 39: The method of any of aspects 23 through 38, wherein receiving the first repetition comprises receiving the first repetition of the uplink message within a first subset of resources indicated by the control signaling for the first repetition based at least in part on the first subset of resources indicated by the control signaling for the first repetition crossing a slot boundary; and receiving the second repetition comprises receiving the second repetition of the uplink message within a second subset of resources indicated by the control signaling for the first repetition that occurs after the slot boundary.
Aspect 40: The method of any of aspects 23 through 39, further comprising: identifying that the first repetition is a first sub-repetition and that the second repetition is a second sub-repetition; wherein receiving the first repetition and the second repetition comprises receiving the first sub-repetition, the second sub-repetition, or both, on a first subset and a second subset of resources indicated by the control signaling for the plurality of repetitions, the first subset of resources separated in time by the time gap from the second subset of resources.
Aspect 41: The method of any of aspects 23 through 40, wherein the first repetition is a first nominal repetition and the second repetition is a second nominal repetition.
Aspect 42: The method of any of aspects 23 through 41, wherein transmitting the control signaling comprises: transmitting a first control message scheduling the plurality of repetitions of the uplink message and a second control message indicating the time gap threshold.
Aspect 43: The method of any of aspects 23 through 42, wherein the control signaling comprises radio resource control signaling.
Aspect 44: The method of any of aspects 23 through 43, wherein the control signaling comprises downlink control information.
Aspect 45: An apparatus for wireless communication at a UE, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method of any of aspects 1 through 22.
Aspect 46: An apparatus for wireless communication at a UE, comprising at least one means for performing a method of any of aspects 1 through 22.
Aspect 47: A non-transitory computer-readable medium storing code for wireless communication at a UE, the code comprising instructions executable by a processor to perform a method of any of aspects 1 through 22.
Aspect 48: An apparatus for wireless communication at a base station, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform a method of any of aspects 23 through 44.
Aspect 49: An apparatus for wireless communication at a base station, comprising at least one means for performing a method of any of aspects 23 through 44.
Aspect 50: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform a method of any of aspects 23 through 44.
It should be noted that the methods described herein describe possible implementations, and that the operations and the steps may be rearranged or otherwise modified and that other implementations are possible. Further, aspects from two or more of the methods may be combined.
Although aspects of an LTE, LTE-A, LTE-A Pro, or NR system may be described for purposes of example, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein are applicable beyond LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applicable to various other wireless communications systems such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, as well as other systems and radio technologies not explicitly mentioned herein.
Information and signals described herein may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
The various illustrative blocks and components described in connection with the disclosure herein may be implemented or performed with a general-purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the disclosure and appended claims. For example, due to the nature of software, functions described above can be implemented using software executed by a processor, hardware, firmware, hardwiring, or combinations of any of these. Features implementing functions may also be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations. As used herein, including in the claims, the term “and/or,” when used in a list of two or more items, means that any one of the listed items can be employed by itself, or any combination of two or more of the listed items can be employed. For example, if a composition is described as containing components A, B, and/or C, the composition can contain A alone; B alone; C alone; A and B in combination; A and C in combination; B and C in combination; or A, B, and C in combination. Also, as used herein, including in the claims, “or” as used in a list of items (for example, a list of items prefaced by a phrase such as “at least one of” or “one or more of”) indicates a disjunctive list such that, for example, a list of “at least one of A, B, or C” means A or B or C or AB or AC or BC or ABC (i.e., A and B and C).
Computer-readable media includes both non-transitory computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A non-transitory storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer. By way of example, and not limitation, non-transitory computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other non-transitory medium that may be used to carry or store desired program code means in the form of instructions or data structures and that may be accessed by a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Also, any connection is properly termed a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable medium. Disk and disc, as used herein, include CD, laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.
As used herein, including in the claims, “or” as used in a list of items (e.g., a list of items prefaced by a phrase such as “at least one of” or “one or more of”) indicates an inclusive list such that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Also, as used herein, the phrase “based on” shall not be construed as a reference to a closed set of conditions. For example, an example step that is described as “based on condition A” may be based on both a condition A and a condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase “based on” shall be construed in the same manner as the phrase “based at least in part on.”
The term “determine” or “determining” encompasses a wide variety of actions and, therefore, “determining” can include calculating, computing, processing, deriving, investigating, looking up (such as via looking up in a table, a database or another data structure), ascertaining and the like. Also, “determining” can include receiving (such as receiving information), accessing (such as accessing data in a memory) and the like. Also, “determining” can include resolving, selecting, choosing, establishing and other such similar actions.
In the appended figures, similar components or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label by a dash and a second label that distinguishes among the similar components. If just the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label, or other subsequent reference label.
The description set forth herein, in connection with the appended drawings, describes example configurations and does not represent all the examples that may be implemented or that are within the scope of the claims. The term “example” used herein means “serving as an example, instance, or illustration,” and not “preferred” or “advantageous over other examples.” The detailed description includes specific details for the purpose of providing an understanding of the described techniques. These techniques, however, may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form in order to avoid obscuring the concepts of the described examples.
The description herein is provided to enable a person having ordinary skill in the art to make or use the disclosure. Various modifications to the disclosure will be apparent to a person having ordinary skill in the art, and the generic principles defined herein may be applied to other variations without departing from the scope of the disclosure. Thus, the disclosure is not limited to the examples and designs described herein but is to be accorded the broadest scope consistent with the principles and novel features disclosed herein.
The present application for patent claims the benefit of U.S. Provisional Patent Application No. 63/166,132 by CHEN et al., entitled “TIME GAP ENHANCEMENT FOR MESSAGE REPETITION,” filed Mar. 25, 2021, assigned to the assignee hereof, and expressly incorporated by reference herein.
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| 20220312447 A1 | Sep 2022 | US |
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| 63166132 | Mar 2021 | US |
