Patent Application
20220095276
The technology relates to wireless communications, and particularly to selecting radio resources for a vehicle (V2X) communications messages.
When two user equipment terminals (e.g., mobile communication devices) of a cellular network or other telecommunication system communicate with each other, their data path typically goes through the operator network. The data path through the network may include base stations and/or gateways. If the devices are in close proximity with each other, their data path may be routed locally through a local base station. In general, communications between a network node such as a base station and a wireless terminal is known as “WAN” or “Cellular communication”.
It is also possible for two user equipment terminals in close proximity to each other to establish a direct link without the need to go through a base station. Telecommunications systems may use or enable device-to-device (“D2D”) communication, in which two or more user equipment terminals directly communicate with one another. In D2D communication, voice and data traffic (referred to herein as “communication signals” or “communications”) from one user equipment terminal to one or more other user equipment terminals may not be communicated through a base station or other network control device of a telecommunication system. “Device-to-device (“D2D”) communication may also be known as “sidelink direct” communication (e.g., sidelink communication), or even as “sidelink”, “SL”, or “SLD” communication.
D2D or sidelink direct communication can be used in networks implemented according to any suitable telecommunications standard. A non-limiting example of such as standard is the 3rd Generation Partnership Project (“3GPP”) Long Term Evolution (“LTE”). The 3GPP standard is a collaboration agreement that aims to define globally applicable technical specifications and technical reports for third and fourth generation wireless communication systems. The 3GPP may define specifications for next generation mobile networks, systems, and devices.
3GPP Rel-14 specified a feature that covers use cases and potential requirements for LTE support for vehicular communications services (represented by the term, Vehicle-to-Everything (V2X) Services). The feature is documented in the TR 22.885 on LTE Study on LTE Support for V2X Services. V2X services may include one or more of the following:
Thus far 3GPP deliberations concerning synchronization for vehicle-to-vehicle (V2V) communications have essentially assumed reuse of LTE sidelink for V2V, e.g., assumed that the V2V communications will essentially be indistinct from sidelink direct communications in the access stratum (AS), e.g., may use the same PC5 radio access interface. As such, it has generally been assumed that the LTE 3GPP resource selection design for SLD would be reused for V2X communication as much as possible. On the other hand, there are still numerous differences between V2X and D2D, such as higher V2X user equipment (UE) density and much higher V2X UE velocity.
What is needed are methods, apparatus, and/or techniques for selecting radio resources for a V2X messages involved in vehicle (V2X) communications.
In one example, a user equipment which participates in vehicle-to-anything (V2X) communications, comprising: processor circuitry configured to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; a transmitter and/or receiver configured to use the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one example, a method in a user equipment which participates in vehicle-to-anything (V2X) communications, comprising: using processor circuitry to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; using the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one example, a node of a core network comprising: processor circuitry configured to generate a set of thresholds, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; interface circuitry configured to transmit the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In one example, a method in a node of a core network, the method comprising: using processor circuitry to generate a set of thresholds, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitting the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In one example, a node of a radio access network comprising: processor circuitry configured to include a set of thresholds in a message, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitter circuitry configured to transmit the message comprising the set of thresholds over a radio interface to the user equipment.
In one example, a method in node of a radio access network, the method comprising: using processor circuitry to include a set of thresholds in a message, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitting the message comprising the set of thresholds over a radio interface to the user equipment.
The foregoing and other objects, features, and advantages of the technology disclosed herein will be apparent from the following more particular description of preferred embodiments as illustrated in the accompanying drawings in which reference characters refer to the same parts throughout the various views. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the technology disclosed herein.
In one of its example aspects the technology disclosed herein concerns a user equipment which participates in vehicle-to-anything (V2X) communications and a method in the user equipment. In a generic example embodiment and mode the user equipment comprises processor circuitry and a transmitter and/or receiver. The processor circuitry configured is to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication. The transmitter and/or receiver is configured to use the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one of its example aspects the technology disclosed herein concerns a node of a core network and a method in the node. In a generic example embodiment and mode the core network node comprises processor circuitry and interface circuitry. The processor circuitry is configured to generate a set of thresholds. The set of thresholds is configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication. The interface circuitry is configured to transmit the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In yet another of its example aspects the technology disclosed herein concerns a node of a radio access network and a method in the node. In a generic example embodiment and mode the node comprises processor circuitry and transmitter circuitry. The processor circuitry is configured to include a set of thresholds in a message. The set of thresholds is configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication. The transmitter circuitry is configured to transmit the message comprising the set of thresholds over a radio interface to the user equipment.
In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular architectures, interfaces, techniques, etc. in order to provide a thorough understanding of the technology disclosed herein. However, it will be apparent to those skilled in the art that the technology disclosed herein may be practiced in other embodiments that depart from these specific details. That is, those skilled in the art will be able to devise various arrangements which, although not explicitly described or shown herein, embody the principles of the technology disclosed herein and are included within its spirit and scope. In some instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the technology disclosed herein with unnecessary detail. All statements herein reciting principles, aspects, and embodiments of the technology disclosed herein, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future, i.e., any elements developed that perform the same function, regardless of structure.
Thus, for example, it will be appreciated by those skilled in the art that block diagrams herein can represent conceptual views of illustrative circuitry or other functional units embodying the principles of the technology. Similarly, it will be appreciated that any flow charts, state transition diagrams, pseudo code, and the like represent various processes which may be substantially represented in computer readable medium and so executed by a computer or processor, whether or not such computer or processor is explicitly shown.
As used herein, the term “device-to-device (“D2D″) communication” may refer to a mode of communication between or among wireless terminals that operate on a cellular network or other telecommunications system in which the communication data traffic from one wireless terminal to another wireless terminal does not pass through a centralized base station or other device in the cellular network or other telecommunications system. The “device-to-device (D2D) communication” encompasses one or both of D2D signaling (e.g., D2D control information) and D2D data. “Device-to-device (“D2D″) communication may also be known as “sidelink direct” communication (e.g., sidelink communication). The term “sidelink direct” may also be shortened to “sidelink”, abbreviated as “SL”, and as such “sidelink” may be used herein to refer to sidelink direct. Yet further, the term “ProSe” (Proximity Services) direct communication may be used in lieu of sidelink direct communication or device-to-device (D2D) communication. Therefore, it is to be understood that herein the terms “sidelink direct”, sidelink” (SL), “ProSe” and “device-to-device (D2D)” may be interchangeable and synonymous.
Thus, as mentioned above, device-to-device (D2D) or sidelink direct communication differs from “WAN” or “Cellular communication” which is or involves communication between the base station and the wireless terminal. In device-to-device (D2D) communication, communication data is sent using communication signals and can include voice communications or data communications intended for consumption by a user of a wireless terminal. Communication signals may be transmitted directly from a first wireless terminal to a second wireless terminal via D2D communication. In various aspects, all, some or none of the control signaling related to the D2D packet transmission may be managed or generated by the underlying core network or base station. In additional or alternative aspects, a receiver user equipment terminal may relay communication data traffic between a transmitter user equipment terminal and one or more additional receiver user equipment terminals.
As used herein, the term “core network” can refer to a device, group of devices, or sub-system in a telecommunication network that provides services to users of the telecommunications network. Examples of services provided by a core network include aggregation, authentication, call switching, service invocation, gateways to other networks, etc.
As used herein, the term “wireless terminal” can refer to any electronic device used to communicate voice and/or data via a telecommunications system, such as (but not limited to) a cellular network. Other terminology used to refer to wireless terminals and non-limiting examples of such devices can include user equipment terminal, UE, mobile station, mobile device, access terminal, subscriber station, mobile terminal, remote station, user terminal, terminal, subscriber unit, cellular phones, smart phones, personal digital assistants (“PDAs”), laptop computers, tablets, netbooks, e-readers, wireless modems, etc.
As used herein, the term “access node”, “node”, or “base station” can refer to any device or group of devices that facilitates wireless communication or otherwise provides an interface between a wireless terminal and a telecommunications system. A non-limiting example of a base station can include, in the 3GPP specification, a Node B (“NB”), an enhanced Node B (“eNB”), a home eNB (“HeNB”), a gNB (for a New Radio [“NR”] technology system), or some other similar terminology. Another non-limiting example of a base station is an access point. An access point may be an electronic device that provides access for wireless terminal to a data network, such as (but not limited to) a Local Area Network (“LAN”), Wide Area Network (“WAN”), the Internet, etc. Although some examples of the systems and methods disclosed herein may be described in relation to given standards (e.g., 3GPP Releases 8, 9, 10, 11, 12, 13, and thereafter), the scope of the present disclosure should not be limited in this regard. At least some aspects of the systems and methods disclosed herein may be utilized in other types of wireless communication systems.
As used herein, the term “telecommunication system” or “communications system” can refer to any network of devices used to transmit information. A non-limiting example of a telecommunication system is a cellular network or other wireless communication system.
As used herein, the term “cellular network” or “cellular radio access network” can refer to a network distributed over cells, each cell served by at least one fixed-location transceiver, such as a base station. A “cell” may be any communication channel that is specified by standardization or regulatory bodies to be used for International Mobile Telecommunications-Advanced (“IMT Advanced”). All or a subset of the cell may be adopted by 3GPP as licensed bands (e.g., frequency band) to be used for communication between a base station, such as a Node B, and a UE terminal. A cellular network using licensed frequency bands can include configured cells. Configured cells can include cells of which a UE terminal is aware and in which it is allowed by a base station to transmit or receive information. Examples of cellular radio access networks include E-UTRAN, and any successors thereof (e.g., NUTRAN).
Vehicle (V2X) communication is described in one or more of the following (all of which are incorporated herein by reference in their entirety):
3GPP TS 36.331 V13.0.0 “Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification”, including but not limited to § 5.10.3 (Sidelink communication monitoring), § 5.10.4 (Sidelink communication transmission), and § 9.3.2 (pre-configurable parameters).
RP-151109, Feasibility Study on LTE-based V2X Services 3GPP TSG RAN Meeting #68, Malmö, Sweden, Jun. 15-18, 2015.
RP-152293, Support for V2V services based on LTE sidelink, 3GPP TSG RAN Meeting #70, Sitges, Spain, Dec. 7-10, 2015
3GPP TSG RAN WG1 Meeting #84bis, Busan, Korea 11th-15 Apr. 2016, Chairman notes.
3GPP TR 22.885 V14.0.0 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Study on LTE Support for V2X Services (Release 14).
Chairman's Notes, RANI #85, Nanjing, China, May 23-May 27, 2016.
RP-161298, “LTE based V2X Services”, Busan, South Korea, Jun. 13-16, 2016.
Chairman's Notes, RANI 486, Gothenburg, Sweden, Aug. 22-26, 2016
Vehicle (V2X) communication is a communication that involves a radio connection established between a transmit device and a receive device (e.g., a wireless terminal or UE), which radio communication may or may not transit via a base station node of the network, with at least of one the transmit device and the receive device being mobile, e.g., capable of being moved. Generic V2X encompasses one or more of vehicle to infrastructure (V2I) communication; vehicle to person/pedestrian (V2P) communication; and vehicle to vehicle (V2V) communication. It is understood in the art, and intended herein, that V2X refers to both V2X and X2V; that V2I refers to both V2I and I2V; that V2P refers to both V2P and P2V; and so forth.
Generally, there are three general scenarios which may occur in vehicle (V2X) communication. Those three general vehicle (V2X) communications scenarios are illustrated in
The three vehicle (V2X) communication scenarios are described with reference to whether or not a participating wireless terminals (e.g., WTs) are “in coverage” or “out-of-coverage” of one or more cellular radio access networks (which may collectively be referred to as a “cellular radio access network”). For sake of simplicity
As used herein and as illustrated in
As a first example implementation, V2X communication may be implemented using applications and resources of the type that were utilized for sidelink direct (SLD) communication (also known as device-to-device (“D2D”) communication) before introduction of vehicle (V2X) communication. For example, when implemented as part of SLD communication the V2X communication may use resources and channels of the SLD communication scheme. In such first implementation the V2X communication may be said to be implemented using pre-V2X sidelink direct (SLD) protocol and over a pre-V2X sidelink direct (SLD) radio interface 15SLD.
As a second example implementation, V2X communication may be implemented using enhanced applications and enhanced resources utilized for sidelink direct (SLD) communication, e.g., sidelink direct communications augmented or enhanced with additional capabilities to accommodate vehicle (V2X) communication. In such second implementation the V2X communication may be said to be implemented using enhanced sidelink direct (SLD) protocol and over an enhanced sidelink direct (SLD) radio interface 15SLD*.
As a third example implementation, V2X communication may operate separately from sidelink direct (SLD) communication by, e.g., having separate and dedicated V2X communication resources and channels, and by being performed using application software which is specific to V2X communication. In such third implementation the V2X communication may be said to be implemented using separate vehicle (V2X) communications protocol and over a separate vehicle (V2X) communication radio interface 15V2X.
The fact that three example implementations are illustrated in
In sidelink direct communications, a scheduling assignment (SA) is used to indicate the data radio resources that may be used to carry data in a sidelink direct transmission, e.g., to a receiving wireless terminal. As such, there may be one or more pools of scheduling assignment (SA) radio resources that are used to carry the scheduling assignment (SA) information, with the scheduling assignment (SA) resources being different than the data radio resources that are described by the scheduling assignment (SA). The data radio resources typically belong to a data pool (of data radio resources).
Any reference to a “resource” herein means “radio resource” unless otherwise clear from the context that another meaning is intended. In general, as used herein a radio resource (“resource”) is a time-frequency unit that can carry information across a radio interface, e.g., either signal information or data information. An example of a radio resource occurs in the context of a “frame” of information that is typically formatted and prepared, e.g., by a node. In Long Term Evolution (LTE) a frame, which may have both downlink portion(s) and uplink portion(s), is communicated between the base station and the wireless terminal. Each LTE frame may comprise plural subframes. For example, in the time domain, a 10 ms frame consists of ten one millisecond subframes. An LTE subframe is divided into two slots (so that there are thus 20 slots in a frame). The transmitted signal in each slot is described by a resource grid comprised of resource elements (RE). Each column of the two dimensional grid represents a symbol (e.g., an OFDM symbol on downlink (DL) from node to wireless terminal; an SC-FDMA symbol in an uplink (UL) frame from wireless terminal to node). Each row of the grid represents a subcarrier. A resource element (RE) is the smallest time-frequency unit for downlink transmission in the subframe. That is, one symbol on one sub-carrier in the sub-frame comprises a resource element (RE) which is uniquely defined by an index pair (k,l) in a slot (where k and l are the indices in the frequency and time domain, respectively). In other words, one symbol on one sub-carrier is a resource element (RE). Each symbol comprises a number of sub-carriers in the frequency domain, depending on the channel bandwidth and configuration. The smallest time-frequency resource supported by the standard today is a set of plural subcarriers and plural symbols (e.g., plural resource elements (RE)) and is called a resource block (RB). A resource block may comprise, for example, 84 resource elements, i.e., 12 subcarriers and 7 symbols, in case of normal cyclic prefix.
One aspect of the technology disclosed herein is a wireless terminal which autonomously makes a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a message of the V2X communication, e.g., a V2X message.
Each UE 26 capable of V2X service has an associated V2X application 28 which executes, e.g., on processor circuitry of the UE 26. The V2X applications 28 of the various user equipment units 26 may communicate with one another over a V5 interface, and with the V2X application server 20 over a V1 interface.
The user equipment units 26 shown in
In addition, UE 26A and UE 26B are shown as communicating over a radio interface NR-Uu with New Radio 5G network 32. The interface NR-Uu corresponds to the Uu interface for LTE but with protocol for NR rather than LTE. Although not shown as such in
The V2X application server 20, V2X control function 22, V2X applications 28, V1-V5 interfaces, and various reference points illustrated in
The user equipment 26 further comprises processor circuitry, also herein known more simply as UE processor 50, or simply as processor 50. While processor 50 may have responsibility for operation of many aspects of wireless terminal 26 not specifically described herein, in one of its aspects processor 50 serves as UE V2X controller 52 for controlling aspects of vehicle (V2X) communication. As further illustrated in
In addition to UE processor circuitry 50, wireless terminal 26 also comprises UE memory 60, e.g., memory circuitry, which may store an operating system and various application programs, such as vehicle V2X communication application 28. The memory 60 may be any suitable type of memory, e.g., random access memory (RAM), read only memory (ROM), cache memory, processor register memory, or any combination of one or more memory types. The applications such as V2X application 28 comprises instructions executable by processor circuitry 50 and are stored in non-transient portions of memory 60. At least some aspects of UE memory 64 may also be considered as part of UE V2X controller 52.
The user equipment 26 further comprises UE user interface(s) 64. The user interfaces 64 may comprise one or more suitable input/output devices which are operable by a user. Some of all of the user interfaces 64 may be realized by a touch sensitive screen. The user interface(s) 64 may also comprise a keyboard, audio input and output, and other user I/O devices. Only a portion of the user interfaces 64 is depicted in
The user equipment 26 participates in vehicle-to-anything (V2X) communications, meaning that the user equipment 26 may participate in one or more of vehicle to infrastructure (V2I) communication; vehicle to person/pedestrian (V2P) communication; and vehicle to vehicle (V2V) communication.
3GPP V2X services will be used to transport SAE J2735 BSM (Basic Safety Message). The BSM has two parts: Part 1 of the BSM (Basic Safety Message) includes the core data elements, e.g., vehicle size, position, speed, heading acceleration, brake system status, and is transmitted approximately 10× per second. BSM (Basic Safety Message) Part 2 includes a variable set of data elements drawn from many optional data elements, and is transmitted less frequently then part 1. The BSM is expected to have a transmission range of 1,000 meters, and is tailored for localized broadcast required by V2V safety applications.
In Rel-14 LTE V2X (aka LTE V2X), a basic set of requirements for V2X service in TR 22.885 is supported, which are considered sufficient for basic road safety service. An LTE V2X enabled vehicle, e.g., a vehicle configured with a UE the supports V2X applications, may directly exchange status information via the PC5 interface. The PC5 interface may also be known as sidelink at the physical layer. The status information exchanged, e.g., via the PC5 interface, may include position, speed and heading, and may be exchanged with other nearby vehicles, infrastructure nodes and/or pedestrians that are also enabled with LTE V2X. However, the LTE V2X transport service is broadcast only, thus no HARQ feedback is transmitted by the receiving UE. There is HARQ packet combining process at the receiving LTE V2X UE. Thus, in order to increase probability of correct demodulation, the LTE V2X retransmits its user data, e.g. a PSSCH, three times in consecutive subframes, and its control data, e.g. a PSCCH, twice in different subframes, using always QPSK modulation.
In 3GPP Release 16, e.g., Rel-16, the 3GPP Fifth Generation 5G New Radio, NR, is expected to provide for enhanced V2X service, also known as NR V2X, which includes a data transport services with much lower latency and much higher throughput. See, for example, the SA1 Study on Improvement of V2X Service Handling for Rel-16, also known as FS_V2XIMP or Release 16 (Open)Specification: 22.886—Study on enhancement of 3GPP support for 5G V2X services Version: 15.1.0: Specification. Therefore, a HARQ feedback process is expected to be enabled between the transmitting NR V2X UE and the receiving NR V2X UE, which are using NR V2X resources.
Both the LTE V2X service and NR V2X service will be capable of transporting the BSM (Basic Safety Message) over the legacy PC5 based LTE V2X communication channel. In this regard, TSG RAN has agreed in TR 38.913 that NR V2X not replace the services offered by LTE V2X. Instead, the NR V2X shall complement LTE V2X for advanced V2X services and support interworking with LTE V2X. Thus, given the enhancements expected for NR V2X service, and the agreement that NR V2X service will provide a super set of the services provided by LTE V2X service, there will be deployments of the following:
Returning now to
At the V2X application layer:
At the PC5 control plane, messages in the class of:
In sending a V2X message, the UE processor 50 may execute V2X message resource selection procedure 70 to determine if the V2X message is to be transported between 3GPP V2X services using radio resources of a first radio access technology or radio resources of a second radio access technology. A portion of the UE processor 50 known as the UE V2X controller 52, and particularly a V2X message resource selector 72, may perform the V2X message resource selection procedure 70. For example, in an example scenario in which the two radio access technologies include LTE and NR, the V2X message resource selector 72 executes a resource selection procedure 70 to determine if the BSM is to be transported between 3GPP V2X services using NR type resources or LTE type resources or both NR and LTE type resources. The user equipment 26 of
The LTE specification TS23.285 specified a “V2X Control Function” as the logical function used for network related actions required for V2X, and that the V2X Control Function is used to provision the UE with necessary parameters that enable the UE to use V2X communication. The UE V2X controller 52 performs similar functions as specified in TS23.285 for UE 26, but the UE V2X controller 52 further serves as a NR V2X Control Function with the V2X message resource selector 72 making a determination if the V2X message (e.g., Basic Safety Message, for example) is to be transported using NR resources, or LTE resources, or both NR and LTE type services and resources.
The UE V2X controller 52, serving as a NR V2X Control Function, may enable or provide the NR V2X UE 26 with parameters for using NR or LTE or both NR and LTE transmission resources, and may provide an additional set of parameters related to QoS, or radio propagation conditions. The V2X message resource selector 72 is thereby enabled to make an autonomous determination of which resources, enabled by the UE V2X controller 52, to use for the transport of the V2X message. In other words, the UE is enabled to make an autonomous determination of which resources to use based on its current local radio frequency, RF, and traffic conditions.
In one of its example aspects, the technology disclosed herein includes the UE 26 making a determination of which resource to use (NR or LTE or both NR and LTE) to transport the V2X message over the PC5-based V2X communication channel, per the parameters provided by UE V2X controller 52, and a Hybrid Automatic Repeat Request, HARQ, function between the NR UE transmitting V2X data on PC5 and the NR UE receiving the V2X data on PC5, and S-Measurement taken on the E-UTRA carrier frequency used for PC5. The UE 26 of
In an example embodiment and mode, the UE processor 50, and V2X message resource selector 72 in particular, is configured to make the selection of radio resources for the V2X message, e.g., to perform act 5A-1 of
As explained herein, the quality of service, e.g., QoS, information for a V2X-utilized channel may be obtained from the HARQ functionality 74 and the signal measurement functionality 76. The set of thresholds comprises a respective threshold for the quality of service information obtained from each of the two radio access technologies. To this end,
In an example embodiment and mode, for a first radio access technology the quality of service information may comprise error rate and delay rate for the V2X-utilized channel, and for a second radio access technology the quality of service information may comprise a received signal measurement for the V2X-utilized channel. In such example embodiment and mode, and as shown in
In an example embodiment and mode, illustrated in
As explained herein, the V2X message resource selector 72 may make more than one comparison, and accordingly more than one column of the configured threshold table 80 may be used by V2X message resource selector 72 for obtaining more than one set of thresholds 82. Accordingly,
In view of the fact that each set of thresholds 82 comprises plural thresholds, e.g., a threshold for error rate, a threshold for delay rate, and a threshold for RSRP, for example, each set may be viewed as representing or providing a composite threshold which is essentially the union or superposition of all thresholds of the set. For example, in pointing to the second column of
The configured threshold table 80 may either be pre-configured at the user equipment 26 or configured by a network. Being “pre-configured” means that the configured threshold table 80 may be loaded into the UE memory 60 at time of manufacture, initial startup, or refurbishment of user equipment 26. Being “configured by a network” means that the configured threshold table 80 is transmitted to the user equipment 26 by a network using, e.g., techniques and/or messages and/or system information blocks, SIBs, as herein described.
The beginning of the V2X message resource selection procedure 70 is indicated by act 7A-1. As act 7A-2, the V2X message resource selection procedure 70 checks if a BSM (Basic Safety Message) is to be transported. As mentioned above, for sake of representative example
As act 7A-4 the V2X message resource selection procedure 70 determines whether LTE resource pools are available. If it is determined at act 7A-4 that LTE resource pools are available, as act 7A-5 the V2X message resource selection procedure 70 specifies that LTE resources are to be used for transmitting the BSM (Basic Safety Message). Thereafter, as indicated by act 5A-2 of
If it is determined at act 7A-4 that LTE resource pools are not available, then as act 7A-6 the V2X message resource selection procedure 70 confirms that NR resource pools are available. If act 7A-6 confirms that NR resource pools are available, as act 7A-7 the V2X message resource selection procedure 70 specifies that NR resources are to be used for transmitting the BSM (Basic Safety Message). Thereafter, as indicated by act 5A-2 of
Should be determined at act 7A-3 that both LTE resource pools and NR resource pools are available, as act 7A-8 the V2X message resource selection procedure 70 checks if the network, e.g., a gNB node, has provided a configured threshold table 80. As indicated in
As act 7A-12 the V2X message resource selection procedure 70 determines whether the network has provided at least one table index, such as index arrow 84A shown in
On the other hand, if the determinations of any of act 7B-5, 7B-6, and 7B-7 are negative then act 7B-9 is next executed (as indicated by symbol 7B′).
On the other hand, if the determinations of any of act 7C-6, 7C-7, and 7C-8 are negative then act 7C-10 is next executed.
On the other hand, if any of the determinations of act 7C-10, 7C-11, and 7C-12 are negative, then act 7C-14 is next performed.
If any of the determinations of act 7C-14, 7C-15, and 7C-16 are negative, then act 7C-18 is next performed.
It was mentioned above that the configured threshold table 80 may be “configured by a network”, e.g., transmitted to the user equipment 26 by a network. As described herein, the configured threshold table 80 may be transmitted to the user equipment 26 by a network using a unicast message or a broadcast message. A non-limiting example of a unicast message which transmits the configured threshold table 80 may be an RRC_Reconfiguration message, for example. A non-limiting example of a broadcast message which transmits the configured threshold table 80 may be system information block, SIB. These and other example messages and techniques for transmitting and receiving the configured threshold table 80 are described herein.
In an example embodiment and mode, the user equipment 26 may, at different times, receive the configured threshold table 80 in different ways, e.g., by different types of messages. For example, the user equipment 26 may at an earlier time receive a first version of a configured threshold table 80 in a broadcast message, and thereafter receive another or section version of the configured threshold table 80 in a unicast message. In such situation, regardless of when the configured threshold tables were generated, the version received in a unicast message is prioritized over a version received in a broadcast message. That is, the version received in the unicast message is used instead of the version received in the broadcast message. However, should yet another version of the configured threshold table 80 be later obtained by a broadcast message from a new macrocell, the version of the configured threshold table 80 received from the new macrocell via the broadcast message has priority and therefore will be utilized.
It should be understood that in some example embodiments and modes the parameter(s) generated by parameter generator 120 of network node 90 may actually be transmitted to user equipment 26 through the intermediary of a radio access network node, such as access node 130 shown in
Thus, concerning the configured threshold table 80, the network node 90 comprises parameter generator 120 which may generate, e.g., a set of thresholds. As understood from the preceding discussion, the set of thresholds may be configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication. The node interface circuitry 94 of network node 90 transmits the set of thresholds ultimately to a node of a radio access network, such as access node 130, which is radio communication with the user equipment.
One example, non-limiting role of access node 130 is thus to include the set of thresholds acquired from network node 90 in a message, such as message 150 shown in
Thus, in one of its example aspects, the technology disclosed herein provides configuration data into the NR_V2X_QoS process, e.g., to UE V2X controller 52, via a reuse and enhancement to the autonomous resource selection content of a particular information element, e.g., IE SL-CommTxPoolSensingConfig-14. In yet another aspect, the technology disclosed herein reuses the Rel-14 SIB21 to transport the SL-CommTxPoolSensingConfig-14 information element.
In an example implementation, an information element is used to carry information regarding UE autonomous resource selection. For present purpose, such information element is called “IE SL CommTxPoolSensingConfig-16”. In another of its example aspects, the technology disclosed herein refers to a system information block (SIB) that carries the new IE SL CommTxPoolSensingConfig-16 as “SIBx-NR-V2X”. One enhancement to CommTxPoolSensingConfig-16 is the inclusion of new configuration elements for defining a QoS threshold.
As understood from the foregoing and employed in the examples below, the QoS elements may be captured in the table BSM_QoS_Table, e.g., configured threshold table 80, and the thresholds are indicated by the table index(ices), e.g., BSM_QoS_Index_A and BSM_QoS_Index_B. Each entry in the BSM_QoS_Table may comprise data objects. The examples of
As mentioned above, the NR user equipment 26 may be pre-configured with the threshold table 80, and that the signaled threshold table 80 may take precedence over the pre-configuration. Moreover, the configured threshold table 80, and Index_A and Index_B may be sent to the UE as part of an RRC_Reconfiguration message, in which case the UE 26 will use that data instead of the data sent in the SIBx-NR-V2X message until UE receives a new SIBx-NR-V2X from a different gNB.
As described above, the UE 26 may perform the sidelink communication by using LTE type resources (LTE resources), NR type resources (NR resources), or LTE and NR type resources (LTE and NR resources). For example, the UE may switch the resources used for the sidelink communication, based on the conditions (e.g., the conditions configured by the gNB.
It was mentioned above that the parameter generator 120 may generate an indication of resource pools from which the resource(s) to be used for the V2X message may be selected. Accordingly:
Thus, the parameters “v2x-TxPool-LTE”, and/or “v2x-TxPool-NR” may be used for indicating the resources by which the UE is allowed to transmit the sidelink communication. Also, the parameters “v2x-RxPool-LTE”, and/or “v2x-RxPool-NR” may be used for indicating the resources by which the UE is allowed to receive the sidelink communication. The maximum number of resource pools for “v2x-TxPool-LTE”, “v2x-TxPool-NR”, “v2x-RxPool-LTE”, and/or “v2x-RxPool-NR” may be independently defined (e.g., configured). Namely, the different maximum number of pools for LTE resources (e.g., transmission pools and/or reception pools) and/or NR resources (e.g., transmission pools and/or reception pools) may be defined. Also, LTE resources (e.g., transmission pools and/or reception pools) indicated by the parameters and NR resources (e.g., transmission pools and/or reception pools) indicated by the parameters may be overlapped.
As an example of the foregoing, SIB “SIBx-NR-V2X” may include the parameters for LTE resources (e.g., LTE resources (e.g., v2x-RxPool-LTE, v2x-TxPool-LTE)) used for the sidelink communication. Also, SIB “SIBx-NR-V2X” may include the parameters for NR resources (e.g., NR resources (e.g., v2x-RxPool-NR, v2x-TxPool-NR)) used for the sidelink communication.
In a case that the parameter(s) for NR resources (e.g., v2x-RxPool-NR, v2x-TxPool-NR) is configured, the gNB may further configure a parameter(s) used for the sidelink communication.
Other parameter(s) configured by the gNB may comprise: configuration for a block comprising, at least, Primary Sidelink Synchronization Signal (PSSS), Secondary Sidelink Synchronization Signal (SSSS), Physical Broadcast Channel (PBCH), and/or Demodulation reference signal (DM-RS) associated with the PBCH.
Table 2 provides a detailed description of a non-limiting, example algorithm or logic that may be implemented by V2X message resource selection procedure 70 in accordance with an example embodiment and mode.
Certain units and functionalities of wireless terminal 20 may be implemented by electronic machinery. For example, terminal electronic machinery 188 is shown for wireless terminal 26 in
The memory 194, or computer-readable medium, may be one or more of readily available memory such as random access memory (RAM), read only memory (ROM), floppy disk, hard disk, flash memory or any other form of digital storage, local or remote, and is preferably of non-volatile nature, as and such may comprise memory 60 shown in
Although the processes and methods of the disclosed embodiments may be discussed as being implemented as a software routine, some of the method steps that are disclosed therein may be performed in hardware as well as by a processor running software. As such, the embodiments may be implemented in software as executed upon a computer system, in hardware as an application specific integrated circuit or other type of hardware implementation, or a combination of software and hardware. The software routines of the disclosed embodiments are capable of being executed on any computer operating system, and is capable of being performed using any CPU architecture.
The functions of the various elements including functional blocks, including but not limited to those labeled or described as “computer”, “processor” or “controller”, may be provided through the use of hardware such as circuit hardware and/or hardware capable of executing software in the form of coded instructions stored on computer readable medium. Thus, such functions and illustrated functional blocks are to be understood as being either hardware-implemented and/or computer-implemented, and thus machine-implemented.
In terms of hardware implementation, the functional blocks may include or encompass, without limitation, digital signal processor (DSP) hardware, reduced instruction set processor, hardware (e.g., digital or analog) circuitry including but not limited to application specific integrated circuit(s) [ASIC], and/or field programmable gate array(s) (FPGA(s)), and (where appropriate) state machines capable of performing such functions.
In terms of computer implementation, a computer is generally understood to comprise one or more processors or one or more controllers, and the terms computer and processor and controller may be employed interchangeably herein. When provided by a computer or processor or controller, the functions may be provided by a single dedicated computer or processor or controller, by a single shared computer or processor or controller, or by a plurality of individual computers or processors or controllers, some of which may be shared or distributed. Moreover, use of the term “processor” or “controller” may also be construed to refer to other hardware capable of performing such functions and/or executing software, such as the example hardware recited above.
Nodes that communicate using the air interface also have suitable radio communications circuitry. Moreover, the technology disclosed herein may additionally be considered to be embodied entirely within any form of computer-readable memory, such as solid-state memory, magnetic disk, or optical disk containing an appropriate set of computer instructions that would cause a processor to carry out the techniques described herein.
Moreover, each functional block or various features of the user equipment 26 used in each of the aforementioned embodiments may be implemented or executed by circuitry, which is typically an integrated circuit or a plurality of integrated circuits. The circuitry designed to execute the functions described in the present specification may comprise a general-purpose processor, a digital signal processor (DSP), an application specific or general application integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic, or a discrete hardware component, or a combination thereof. The general-purpose processor may be a microprocessor, or alternatively, the processor may be a conventional processor, a controller, a microcontroller or a state machine. The general-purpose processor or each circuit described above may be configured by a digital circuit or may be configured by an analogue circuit. Further, when a technology of making into an integrated circuit superseding integrated circuits at the present time appears due to advancement of a semiconductor technology, the integrated circuit by this technology is also able to be used.
Among its various embodiments and modes, the technology disclosed herein includes one or more of the following features and/or benefits:
One or more features of the example embodiments and modes described herein may be used in conjunction with one or more other features, in any combination.
The following definitions and/or explanations apply to the corresponding terms as utilized herein:
The technology disclosed herein thus comprises and compasses the following non-exhaustive example embodiments and modes:
Example Embodiment 1: A user equipment which participates in vehicle-to-anything (V2X) communications, comprising:
Example Embodiment 2: The apparatus of Example Embodiment 1, wherein the processor circuitry is configured to make the selection of the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication from either:
Example Embodiment 3: The apparatus of Example Embodiment 1, Wherein the processor circuitry is configured to make the selection by making a comparison of:
Example Embodiment 4: The apparatus of Example Embodiment 3, further comprising memory circuitry, the memory circuitry comprising a configured table of plural sets of thresholds.
Example Embodiment 5: The apparatus of Example Embodiment 4, wherein the at least one particular set(s) of thresholds to be used for the comparison is preconfigured at the user equipment.
Example Embodiment 6: The apparatus of Example Embodiment 4, wherein the at least one particular set(s) of thresholds to be used for the comparison by the processor circuitry is configured by a network.
Example Embodiment 7: The apparatus of Example Embodiment 6, wherein the processor circuitry is configured to determine the at least one particular set(s) of thresholds of the configured table to be used for the comparison based on a corresponding table index(ices) received by the user equipment from the network.
Example Embodiment 8: The apparatus of Example Embodiment 7, wherein the processor circuitry is configured to determine two sets of thresholds to be used for the comparison based on two corresponding table indices received by the user equipment from the network.
Example Embodiment 9: The apparatus of Example Embodiment 7, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a unicast message.
Example Embodiment 10: The apparatus of Example Embodiment 9, wherein the processor circuitry is configured to prioritize a configured table obtained from the unicast message over a configured table obtained from an earlier broadcast message until a new configured table is later obtained from a broadcast message from a new macrocell.
Example Embodiment 11: The apparatus of Example Embodiment 9, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a RRC_Reconfiguration message.
Example Embodiment 12: The apparatus of Example Embodiment 6, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a broadcast message.
Example Embodiment 13: The apparatus of Example Embodiment 12, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a system information block (SIB).
Example Embodiment 14: The apparatus of Example Embodiment 12, wherein the processor circuitry is configured to prioritize a configured table obtained from the broadcast message over a configured table that was preconfigured at the user equipment.
Example Embodiment 15: The apparatus of Example Embodiment 13, wherein the processor circuitry is further configured to determine, from the system information block (SIB), an indication of pools of radio resources from which the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication may be selected.
Example Embodiment 16: The apparatus of Example Embodiment 3, wherein for a first radio access technology the quality of service information comprises error rate and delay rate for the V2X-utilized channel and for a second radio access technology the quality of service information comprises a received signal measurement for the V2X-utilized channel.
Example Embodiment 17: The apparatus of Example Embodiment 16, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
Example Embodiment 18: A method in a user equipment which participates in vehicle-to-anything (V2X) communications, comprising:
Example Embodiment 19: The method of Example Embodiment 18, further comprising making the selection of the radio resources) for transmission and/or reception of the V2X message of the V2X communication from either:
Example Embodiment 20: The method of Example Embodiment 18, further comprising making the selection by making a comparison of
Example Embodiment 21: The method of Example Embodiment 20, wherein the at least one particular set(s) of thresholds to be used for the comparison is preconfigured at the user equipment.
Example Embodiment 22: The method of Example Embodiment 21, wherein the at least one particular set(s) of thresholds to be used for the comparison by the processor circuitry is configured by a network.
Example Embodiment 23: The method of Example Embodiment 21, further comprising determining, from a configured table, the at least one particular set(s) of thresholds to be used for the comparison based on a corresponding table index(ices) received by the user equipment from the network.
Example Embodiment 24: The method of Example Embodiment 23, further comprising determining, from a configured table, two sets of thresholds to be used for the comparison based on two corresponding table indices received by the user equipment from the network.
Example Embodiment 25: The method of Example Embodiment 23, further comprising determining the configured table and the corresponding table index(ices) from a unicast message.
Example Embodiment 26: The method of Example Embodiment 25, further comprising prioritizing a configured table obtained from the unicast message over a configured table obtained from an earlier broadcast message until a new configured table is later obtained from a broadcast message from a new macrocell.
Example Embodiment 27: The method of Example Embodiment 25, further comprising determining the configured table and the corresponding table index(ices) from a RRC_Reconfiguration message.
Example Embodiment 28: The method of Example Embodiment 21, further comprising determining the configured table and the corresponding table index(ices) from a broadcast message.
Example Embodiment 29: The method of Example Embodiment 28, further comprising determining the configured table and the corresponding table index(ices) from a system information block (SIB).
Example Embodiment 30: The method of Example Embodiment 28, further comprising prioritizing a configured table obtained from the broadcast message over a configured table that was preconfigured at the user equipment.
Example Embodiment 31: The method of Example Embodiment 29, further comprising determining, from the system information block (SIB), an indication of pools of radio resources from which the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication may be selected.
Example Embodiment 32: The method of Example Embodiment 20, wherein for a first radio access technology the quality of service information comprises error rate and delay rate for the V2X-utilized channel and for a second radio access technology the quality of service information comprises a received signal measurement for the V2X-utilized channel.
Example Embodiment 33: The method of Example Embodiment 32, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are obtained by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
Example Embodiment 34: A node of a core network comprising:
Example Embodiment 35: The node of Example Embodiment 34, wherein the processor circuitry is configured to generate the set of thresholds to include:
Example Embodiment 36: The node of Example Embodiment 35, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
Example Embodiment 37: The node of Example Embodiment 34, wherein the processor circuitry is configured to generate a table comprising plural sets of thresholds, the table comprising plural sets of thresholds being configured to use by the user equipment of at least one table index, the at least one table index being configured to enable the user equipment to determine at least one particular set(s) of thresholds of the configured table to be used for the comparison.
Example Embodiment 38: A method in a node of a core network, the method comprising:
Example Embodiment 39: The method of Example Embodiment 38, further comprising generating the set of thresholds to include:
Example Embodiment 40: The method of Example Embodiment 39, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
Example Embodiment 41: The method of Example Embodiment 38, further comprising generating a table comprising plural sets of thresholds, the table comprising plural sets of thresholds being configured to use by the user equipment of at least one table index, the at least one table index being configured to enable the user equipment to determine at least one particular set(s) of thresholds of the configured table to be used for the comparison.
Example Embodiment 42: A node of a radio access network comprising:
Example Embodiment 43: The node of Example Embodiment 42, wherein the processor circuitry is further configured:
Example Embodiment 44: The apparatus of Example Embodiment 43, wherein the processor circuitry is configured to generate two indices to enable the user equipment to determine two sets of thresholds to be used for the comparison.
Example Embodiment 45: The apparatus of Example Embodiment 43, wherein the processor circuitry is configured to include the configured table and the at least one table index in a unicast message.
Example Embodiment 46: The apparatus of Example Embodiment 45, wherein the processor circuitry is configured to include the configured table and the table index in a RRC_Reconfiguration message.
Example Embodiment 47: The apparatus of Example Embodiment 43, wherein the processor circuitry is configured to include the configured table and the at least one table index in a broadcast message.
Example Embodiment 48: The apparatus of Example Embodiment 47, wherein the processor circuitry is configured to include the configured table and the at least one table index in a system information block (SIB).
Example Embodiment 49: The node of Example Embodiment 42, wherein the set of thresholds includes:
Example Embodiment 50: A method in node of a radio access network, the method comprising:
Example Embodiment 51: The method of Example Embodiment 50, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
It will be appreciated that the technology disclosed herein is directed to solving radio communications-centric issues and is necessarily rooted in computer technology and overcomes problems specifically arising in radio communications. Moreover, the technology disclosed herein improves basic function of a wireless terminal, e.g., a user equipment, a network node, and a base station, so that, for example, operation of these entities may occur more effectively by prudent use of radio resources. For example, the technology disclosed herein enables the user equipment 26 to make a judicious use of radio resources for a V2X message, particularly in view of quality of service and other concerns/issues.
Although the description above contains many specificities, these should not be construed as limiting the scope of the technology disclosed herein but as merely providing illustrations of some of the presently preferred embodiments of the technology disclosed herein. Thus the scope of the technology disclosed herein should be determined by the appended claims and their legal equivalents. Therefore, it will be appreciated that the scope of the technology disclosed herein fully encompasses other embodiments which may become obvious to those skilled in the art, and that the scope of the technology disclosed herein is accordingly to be limited by nothing other than the appended claims, in which reference to an element in the singular is not intended to mean “one and only one” unless explicitly so stated, but rather “one or more.” The above-described embodiments could be combined with one another. All structural, chemical, and functional equivalents to the elements of the above-described preferred embodiment that are known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the present claims. Moreover, it is not necessary for a device or method to address each and every problem sought to be solved by the technology disclosed herein, for it to be encompassed by the present claims. Furthermore, no element, component, or method step in the present disclosure is intended to be dedicated to the public regardless of whether the element, component, or method step is explicitly recited in the claims.
In one example, a user equipment which participates in vehicle-to-anything (V2X) communications, comprising: processor circuitry configured to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; a transmitter and/or receiver configured to use the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one example, the apparatus, wherein the processor circuitry is configured to make the selection of the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication from either: an LTE radio resource(s); a New Radio (NR) 5G radio resource(s); both the LTE radio resource(s) and the NR 5G radio resources.
In one example, the apparatus, wherein the processor circuitry is configured to make the selection by making a comparison of: quality of service information for a V2X-utilized channel obtained from each of the two radio access technologies; and a set of thresholds comprising a respective threshold for the quality of service information obtained from each of the two radio access technologies.
In one example, the apparatus, further comprising memory circuitry, the memory circuitry comprising a configured table of plural sets of thresholds.
In one example, the apparatus, wherein the at least one particular set(s) of thresholds to be used for the comparison is preconfigured at the user equipment.
In one example, the apparatus, wherein the at least one particular set(s) of thresholds to be used for the comparison by the processor circuitry is configured by a network.
In one example, the apparatus, wherein the processor circuitry is configured to determine the at least one particular set(s) of thresholds of the configured table to be used for the comparison based on a corresponding table index(ices) received by the user equipment from the network.
In one example, the apparatus, wherein the processor circuitry is configured to determine two sets of thresholds to be used for the comparison based on two corresponding table indices received by the user equipment from the network.
In one example, the apparatus, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a unicast message.
In one example, the apparatus, wherein the processor circuitry is configured to prioritize a configured table obtained from the unicast message over a configured table obtained from an earlier broadcast message until a new configured table is later obtained from a broadcast message from a new macrocell.
In one example, the apparatus, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a RRC_Reconfiguration message.
In one example, the apparatus, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a broadcast message.
In one example, the apparatus, wherein the processor circuitry is configured to determine the configured table and the corresponding table index(ices) from a system information block (SIB).
In one example, the apparatus, wherein the processor circuitry is configured to prioritize a configured table obtained from the broadcast message over a configured table that was preconfigured at the user equipment.
In one example, the apparatus, wherein the processor circuitry is further configured to determine, from the system information block (SIB), an indication of pools of radio resources from which the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication may be selected.
In one example, the apparatus, wherein for a first radio access technology the quality of service information comprises error rate and delay rate for the V2X-utilized channel and for a second radio access technology the quality of service information comprises a received signal measurement for the V2X-utilized channel.
In one example, the apparatus, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
In one example, a method in a user equipment which participates in vehicle-to-anything (V2X) communications, comprising: using processor circuitry to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; using the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one example, the method, further comprising making the selection of the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication from either: an LTE radio resource(s); a New Radio (NR) 5G radio resource(s); both the LTE radio resource(s) and the NR 5G radio resources.
In one example, the method, further comprising making the selection by making a comparison of: quality of service information for a V2X-utilized channel obtained from each of the two radio access technologies; and a set of thresholds comprising a respective threshold for the quality of service information obtained from each of the two radio access technologies.
In one example, the method, wherein the at least one particular set(s) of thresholds to be used for the comparison is preconfigured at the user equipment.
In one example, the method, wherein the at least one particular set(s) of thresholds to be used for the comparison by the processor circuitry is configured by a network.
In one example, the method, further comprising determining, from a configured table, the at least one particular set(s) of thresholds to be used for the comparison based on a corresponding table index(ices) received by the user equipment from the network.
In one example, the method, further comprising determining, from a configured table, two sets of thresholds to be used for the comparison based on two corresponding table indices received by the user equipment from the network.
In one example, the method, further comprising determining the configured table and the corresponding table index(ices) from a unicast message.
In one example, the method, further comprising prioritizing a configured table obtained from the unicast message over a configured table obtained from an earlier broadcast message until a new configured table is later obtained from a broadcast message from a new macrocell.
In one example, the method, further comprising determining the configured table and the corresponding table index(ices) from a RRC_Reconfiguration message.
In one example, the method, further comprising determining the configured table and the corresponding table index(ices) from a broadcast message.
In one example, the method, further comprising determining the configured table and the corresponding table index(ices) from a system information block (SIB).
In one example, the method, further comprising prioritizing a configured table obtained from the broadcast message over a configured table that was preconfigured at the user equipment.
In one example, the method, further comprising determining, from the system information block (SIB), an indication of pools of radio resources from which the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication may be selected.
In one example, the method, wherein for a first radio access technology the quality of service information comprises error rate and delay rate for the V2X-utilized channel and for a second radio access technology the quality of service information comprises a received signal measurement for the V2X-utilized channel.
In one example, the method, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are obtained by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
In one example, a node of a core network comprising: processor circuitry configured to generate a set of thresholds, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; interface circuitry configured to transmit the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In one example, the node, wherein the processor circuitry is configured to generate the set of thresholds to include: for a first radio access technology, an error rate threshold and a delay rate threshold for a V2X-utilized channel; and for a second radio access technology, a received signal measurement for the V2X-utilized channel.
In one example, the node, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
In one example, the node, wherein the processor circuitry is configured to generate a table comprising plural sets of thresholds, the table comprising plural sets of thresholds being configured to use by the user equipment of at least one table index, the at least one table index being configured to enable the user equipment to determine at least one particular set(s) of thresholds of the configured table to be used for the comparison.
In one example, a method in a node of a core network, the method comprising: using processor circuitry to generate a set of thresholds, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitting the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In one example, the method, further comprising generating the set of thresholds to include: for a first radio access technology, an error rate threshold and a delay rate threshold for a V2X-utilized channel; and for a second radio access technology, a received signal measurement for the V2X-utilized channel.
In one example, the method, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
In one example, the method, further comprising generating a table comprising plural sets of thresholds, the table comprising plural sets of thresholds being configured to use by the user equipment of at least one table index, the at least one table index being configured to enable the user equipment to determine at least one particular set(s) of thresholds of the configured table to be used for the comparison.
In one example, a node of a radio access network comprising: processor circuitry configured to include a set of thresholds in a message, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitter circuitry configured to transmit the message comprising the set of thresholds over a radio interface to the user equipment.
In one example, the node, wherein the processor circuitry is further configured: to include a table comprising plural sets of thresholds in the message, to generate at least one table index, the at least one table index being configured to enable the user equipment to determine at least one particular set(s) of thresholds of the configured table to be used for the comparison.
In one example, the apparatus, wherein the processor circuitry is configured to generate two indices to enable the user equipment to determine two sets of thresholds to be used for the comparison.
In one example, the apparatus, wherein the processor circuitry is configured to include the configured table and the at least one table index in a unicast message.
In one example, the apparatus, wherein the processor circuitry is configured to include the configured table and the table index in a RRC_Reconfiguration message.
In one example, the apparatus, wherein the processor circuitry is configured to include the configured table and the at least one table index in a broadcast message.
In one example, the apparatus, wherein the processor circuitry is configured to include the configured table and the at least one table index in a system information block (SIB).
In one example, the node, wherein the set of thresholds includes: for a first radio access technology, an error rate threshold and a delay rate threshold for a V2X-utilized channel; and for a second radio access technology, a received signal measurement for the V2X-utilized channel.
In one example, a method in node of a radio access network, the method comprising: using processor circuitry to include a set of thresholds in a message, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitting the message comprising the set of thresholds over a radio interface to the user equipment.
In one example, the method, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
In one example, a user equipment which participates in vehicle-to-anything (V2X) communications, comprising: processor circuitry configured to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; a transmitter and/or receiver configured to use the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one example, the apparatus, wherein the processor circuitry is configured to make the selection of the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication from either: an LTE radio resource(s); a New Radio (NR) 5G radio resource(s); both the LTE radio resource(s) and the NR 5G radio resources.
In one example, the apparatus, wherein the processor circuitry is configured to make the selection by making a comparison of: quality of service information for a V2X-utilized channel obtained from each of the two radio access technologies; and a set of thresholds comprising a respective threshold for the quality of service information obtained from each of the two radio access technologies.
In one example, the apparatus, further comprising memory circuitry, the memory circuitry comprising a configured table of plural sets of thresholds.
In one example, a method in a user equipment which participates in vehicle-to-anything (V2X) communications, comprising: using processor circuitry to autonomously make a selection, from radio resources of at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; using the selected radio resource(s) for the transmission and/or reception of the V2X message.
In one example, the method, further comprising making the selection of the radio resource(s) for transmission and/or reception of the V2X message of the V2X communication from either: an LTE radio resource(s); a New Radio (NR) 5G radio resource(s); both the LTE radio resource(s) and the NR 5G radio resources.
In one example, the method, further comprising making the selection by making a comparison of: quality of service information for a V2X-utilized channel obtained from each of the two radio access technologies; and a set of thresholds comprising a respective threshold for the quality of service information obtained from each of the two radio access technologies.
In one example, the method, wherein the at least one particular set(s) of thresholds to be used for the comparison is preconfigured at the user equipment.
In one example, a node of a core network comprising: processor circuitry configured to generate a set of thresholds, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; interface circuitry configured to transmit the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In one example, the node, wherein the processor circuitry is configured to generate the set of thresholds to include: for a first radio access technology, an error rate threshold and a delay rate threshold for a V2X-utilized channel; and for a second radio access technology, a received signal measurement for the V2X-utilized channel.
In one example, a method in a node of a core network, the method comprising: using processor circuitry to generate a set of thresholds, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitting the set of thresholds ultimately to a node of a radio access network that is in radio communication with the user equipment.
In one example, the method, further comprising generating the set of thresholds to include: for a first radio access technology, an error rate threshold and a delay rate threshold for a V2X-utilized channel; and for a second radio access technology, a received signal measurement for the V2X-utilized channel.
In one example, a node of a radio access network comprising: processor circuitry configured to include a set of thresholds in a message, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitter circuitry configured to transmit the message comprising the set of thresholds over a radio interface to the user equipment.
In one example, the node, wherein the processor circuitry is further configured: to include a table comprising plural sets of thresholds in the message, to generate at least one table index, the at least one table index being configured to enable the user equipment to determine at least one particular set(s) of thresholds of the configured table to be used for the comparison.
In one example, a method in node of a radio access network, the method comprising: using processor circuitry to include a set of thresholds in a message, the set of thresholds being configured for comparison by a user equipment with quality of service information obtained from each of at least two radio access technologies in conjunction with the user equipment making a selection, from radio resources of the at least two radio access technologies, of a radio resource(s) for transmission and/or reception of a V2X message of the V2X communication; transmitting the message comprising the set of thresholds over a radio interface to the user equipment.
In one example, the method, wherein the first radio access technology is New Radio (NR) 5G, wherein the error rate and delay rate for the first radio access technology are reported by a HARQ process, wherein the second radio access technology is Long Term Evolution (LTE), and wherein the V2X-utilized channel is a Sidelink PC5 channel.
This application is a national stage application of International Patent Application PCT/JP2019/031397, filed Aug. 8, 2019, now published as WO 2020/032181 A1. International Patent Application PCT/JP2019/031397 claims the benefit of U.S. Provisional Patent Application 62/716,304, filed Aug. 8, 2018. U.S. Provisional Patent Application 62/716,304 and International Patent Application PCT/JP2019/031397, now published as WO 2020/032181 A1, are incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2019/031397 | 8/8/2019 | WO | 00 |
| Number | Date | Country | |
|---|---|---|---|
| 62716304 | Aug 2018 | US |
