Patent Application
20250142617
The present disclosure relates to the field of communication technology, and in particular, to a method and an apparatus for determining an available duration of data communication, a device, and a medium.
With the development of communication technologies, a network device in a communication system can utilize a licensed spectrum and an unlicensed spectrum at the same time to provide a communication service for a terminal device. In the R16 version of New Radio (NR), a communication method on an unlicensed spectrum follows a listen before talk (LBT) rule, i.e., before transmitting data, a transmitting device (e.g., a network device/a terminal device) needs to listen to a channel on an unlicensed spectrum, and if it is shown that the channel is idle, data transmission can be performed through the channel on the unlicensed spectrum, while if the channel is busy, data transmission cannot be performed through the channel on the unlicensed spectrum.
In a NR technology of 5G, a network device and a terminal device may communicate in frequency bands, where high-frequency communication as well as low-frequency communication are included.
However, due to difference in frequency ranges between the high-frequency communication and the low-frequency communication, a remaining duration indicating method of channel occupy time (COT) on low frequencies in the prior art cannot fully satisfy demands for COT remaining indication on high frequencies, therefore, how to perform COT remaining indication in high-frequency communication becomes a problem to be solved.
The aforementioned information disclosed in the background technology is intended only to enhance understanding of the background of the present disclosure, and thus may contain information which does not form a part of the embodiments.
The present disclosure provides a method and an apparatus for determining an available duration of data communication, a device, and a medium, to solve a problem of the prior art.
In a first aspect, the present disclosure provides a method for determining an available duration of data communication, applied to a receiving device, including:
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, and the maximum indicated value being an indicated symbol value; and
In some embodiments, the maximum indicated value includes a maximum symbol value;
In some embodiments, the COT remaining duration information includes a first indicated value, the first indicated value including any one of an indicated symbol value, a symbol value contained in a half slot, or a symbol value contained in a slot;
In some embodiments, the determining, according to the first indicated value and the scale factor, the second indicated value includes:
In some embodiments, in a case that the first indicated value is the indicated symbol value, the scale factor is determined according to a maximum COT length, a sub-carrier spacing SCS, a reference SCS index, and a reference maximum channel occupy time.
In some embodiments, the scale factor is calculated by a following formula:
In some embodiments, the scale factor is determined based on a preset rule;
In some embodiments, the method further includes:
In some embodiments, the application beam indication information includes beam information and a beam number, the beam information and the beam number being configured by the receiving device, the method further including:
In some embodiments, the following is further included:
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
In some embodiments, the method further includes:
In some embodiments, whether the beam information in the PUSCH scheduling information includes the COT beam information or whether the PUSCH scheduling information includes the COT-related information is determined in any one of following ways:
In some embodiments, the second LBT type includes a LBT type-2 or a LBT type-3.
In some embodiments, the method further includes:
In a second aspect, the present disclosure provides a method for determining an available duration of data communication, applied to a transmitting device, including:
In some embodiments, the application beam indication information includes beam information and a beam number, the beam information and the beam number being configured by the transmitting device, and the method further including:
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, the maximum indicated value being an indicated symbol value; and
In some embodiments, the maximum indicated value is further determined according to a reference maximum indicated range, a reference SCS index, and a reference maximum channel occupy time.
In some embodiments, the maximum indicated value is calculated by a following formula:
In some embodiments, the maximum indicated value is further determined according to a number of slots contained in each subframe and a number of symbols contained in one slot.
In some embodiments, the maximum indicated value is calculated by a following formula:
In some embodiments, the COT remaining duration information includes a first indicated value; and
In some embodiments, the maximum indicated value includes a maximum symbol value;
In some embodiments, the method further includes:
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
In a third aspect, the present disclosure provides a receiving device, including a memory, a transceiver, and a processor:
In a fourth aspect, the present disclosure provides a transmitting device, including a memory, a transceiver, and a processor:
In a fifth aspect, the present disclosure provides an apparatus for determining an available duration of data communication, applied to a receiving device, including:
In a sixth aspect, the present disclosure provides an apparatus for determining an available duration of data communication, applied to a transmitting device, including:
In a seventh aspect, the present disclosure provides a computer readable storage medium, the computer readable storage medium storing a computer executable instruction, which when executed by a processor, is configured for implementing the aforementioned method for determining an available duration of data communication.
The present disclosure provides a method and an apparatus for determining an available duration of data communication, a device, and a medium, and the method includes: receiving a first message, the first message including channel occupy time COT information of an unlicensed spectrum, and the COT information including COT remaining duration information and/or application beam indication information; and determining, according to the COT remaining duration information, the available duration for data reception or transmission. In the present disclosure, a transmitting device may determine the COT remaining duration information and/or the application beam indication information through an LBT process and indicate the COT remaining duration information and/or the application beam indication information to a receiving device through the first message, and the receiving device can accurately determine a maximum indicated COT remaining duration and/or a communication beam, to solve a problem that an existing method of determining an available duration for data communication cannot be applied to a high-frequency band, and enabling high-frequency communication between communication devices.
Drawings herein are incorporated into the specification and form a part of the specification, illustrate embodiments consistent with the present disclosure, and are used in combination with the specification to explain principles of the present disclosure.
Specific embodiments of the present disclosure have been shown by means of the aforementioned drawings, which will be described in greater detail in the following. These drawings and textual descriptions are not intended to limit the scope of concepts of the present disclosure in any way, but rather to illustrate the embodiments of the present disclosure.
In order to make purposes of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in the following in combination with the drawings in the embodiments of the present disclosure, and it is clear that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments.
Terms used in the embodiments of the present disclosure are used merely for the purpose of describing particular embodiments and are not intended to limit the present disclosure. Singular forms “a” and “the” used in the embodiments of the present disclosure are also intended to include plural forms, unless the context clearly indicates otherwise.
It should be understood that terms “and/or” used herein is merely a description of an association relationship of associated objects, indicating that three relationships may exist, for example, A and/or B may be expressed as A alone, both A and B, and B alone. In addition, characters “/” herein generally indicates that the associated objects before and after are in an “alternative” relationship.
Depending on the context, words “if” and “in a case that” used herein may be interpreted as “when . . . ” or “while . . . ” or “in response to determining that” or “in response to detecting that”. Similarly, depending on the context, phrases “if it is determined that” or “if it is detected that (the stated condition or event)” may be interpreted as “when it is determined that” or “in response to determining that” or “when it is detected that (the stated condition or event)” or “in response to detecting that (the stated condition or event)”.
It should also be noted that terms “include”, “contain” or any other variant thereof are intended to cover non-exclusive inclusion, and a commodity or a system including a set of elements includes not only those elements but also other elements that are not explicitly listed or that are inherent to such a commodity or system. Without further limitation, the fact that an element is limited by a phrase “include a . . . ” does not preclude the existence of additional identical elements in a commodity or a system including the element.
With the development of communication technologies, a network device in a communication system can utilize a licensed spectrum and an unlicensed spectrum at the same time to provide a communication service for a terminal device. In the R16 version of New Radio (NR), a communication method on an unlicensed spectrum follows a listen before talk (LBT) rule, i.e., before transmitting data, a transmitting device (e.g., a network device/a terminal device) needs to listen to a channel on an unlicensed spectrum, and if it is shown that the channel is idle, data transmission can be performed through the channel on the unlicensed spectrum, while if the channel is busy, data transmission cannot be performed through the channel on the unlicensed spectrum.
The transmitting device acquires channel occupy time (COT) for performing data transmission after each LBT process and indicates the channel occupy time to a corresponding receiving device via a communication message to indicate remaining channel occupy time, i.e., a COT remaining duration that the receiving device can use for performing data transmission.
In the NR technology of 5G, a network device and a terminal device can communicate in frequency bands, e.g., frequency range 1 (FR1), frequency range 2_1 (FR2_1), frequency range 2_2 (FR2_2), etc., where FR1 specifically refers to 410 MHz to 7.125 GHZ, FR2_1 specifically refers to 24.25 GHz to 52.6 GHZ, and FR2_2 specifically refers to 52.6 GHz to 71 GHz. Among the aforementioned frequency ranges, a frequency range greater than 52.6 GHz is referred to as a high frequency, e.g., FR2_2 is also referred to as a high-frequency band; and a frequency range less than 52.6 GHz is referred to as a low frequency, e.g., FR1, FR2_1 are also referred to as low-frequency bands. When the transmitting device passes the LBT, maximum COT of low frequency communication is 10 ms and maximum COT of high frequency communication is 5 ms.
Although higher communication frequencies can bring advantages of a greater bandwidth, higher frequencies have a greater Doppler frequency bias with a greater phase noise generated, in order to alleviate effects of Doppler and the phase noise brought by high frequencies, a sub-carrier spacing (SCS) used for high-frequency communication is higher than that used for low-frequency communication.
For example, an SCS value for low frequency communication is, for example, 15 KHz, 30 KHz, 60 KHz, 120 KHz, etc., while an SCS value for high frequency communication is, for example, 240 KHz, 480 KHz, 960 KHz, etc. Table 1 below shows specific values of frame structure parameters:
Referring to Table 1 above, the above table describes the number of slots included in one 10 ms radio frame (Nslotframe, μ), the number of slots contained in each 1 ms subframe (Nslotsubframe, μ) and the number of symbols contained in one slot (Nsymbslot) for different SCSs.
For example, when μ=3, each subframe includes 8 slots and each slot includes 14 symbols, i.e., each subframe contains 8*14=112 symbols.
For another example, when μ=5, each subframe includes 32 slots and each slot includes 14 symbols, i.e., each subframe contains 32*14=448 symbols.
For another example, when μ=6, each subframe includes 64 slots and each slot includes 14 symbols, i.e., each subframe contains 64*14=896 symbols.
In operations on an unlicensed spectrum of R16, for low-frequency communication, a method of indicating COT remains is as follows:
However, due to difference in frequency ranges between high-frequency communication and low-frequency communication, the prior art cannot fully satisfy the need for high-frequency COT remain indication, i.e., the method of COT remain indication in low-frequency communication cannot be applied to high-frequency communication for following reasons:
The present disclosure provides a method for determining an available duration for data communication, and is intended to solve the above technical problem in the prior art. The main concept of the present disclosure is as follows:
It can be understood that processing steps of the method for determining an available duration for data communication in the present disclosure may be implemented by a terminal device or a network device.
The network device may be a base station, and may specifically be a base transceiver station (BTS) and/or a base station controller in global system of mobile communication (GSM) or code division multiple access (CDMA), or a NodeB (NB) and/or a radio network controller (RNC) in wideband code division multiple access (WCDMA), or an evolutional Node B (eNB or eNodeB) in long term evolution (LTE), or a relay station or an access point, or a gNB in a future 5G network, etc., which is not limited in the embodiments of the present disclosure.
The terminal device may be a wireless terminal or a wired terminal. The wireless terminal may refer to a device which provides voice and/or other service data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. The wireless terminal may communicate with one or more core network devices via a radio access network (RAN), and the wireless terminal may be a mobile terminal, e.g., a mobile phone (or referred to as “cellular” phone) and a computer having a mobile terminal, e.g., may be a portable, pocket-sized, handheld, computer-built, or vehicle-mounted mobile device, which exchange voice and/or data with a wireless access network. For another example, the wireless terminal may be a personal communication service (PCS) telephone, a cordless telephone, a session initiation protocol (SIP) telephone, a wireless local loop (WLL) station, a personal digital assistant (PDA), or other devices. The wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, a remote terminal, an access terminal, an user terminal, a user agent, a user device or user equipment, which is not limited herein. In one embodiment, the above terminal device may also be a device such as a smart watch, a tablet computer, etc.
The technical solutions of the present disclosure and how the technical solutions of the present disclosure solve the aforementioned technical problems are described in detail below in specific embodiments. These following specific embodiments may be combined with each other, and same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present disclosure will be described below in combination with the drawings.
In some embodiments, a method for determining an available duration for data communication is provided, which is applied to a transmitting device. The transmitting device may specifically be a network device or a terminal device, and correspondingly, a receiving device is a terminal device or a network device, the transmitting device being different from the receiving device.
In one embodiment, a transmitting device may acquire the COT information of the unlicensed spectrum through an LBT process, which may be implemented by an existing LBT method, e.g., an LBT type-1 method or an LBT type-2 method.
The COT information acquired by the transmitting device includes COT remaining duration information and/or application beam indication information, the COT remaining duration information being used for indicating a maximum indicated COT remaining duration during a high-frequency communication process; the applied beam information is configured for indicating an applied beam corresponding to the maximum indicated COT remaining duration.
The COT remaining duration information is indicated by expanding an indicated range or increasing an indicated granularity, and the COT remaining duration information can be used for indicating a longer COT remaining duration, which thereby can solve the problem 1 existing in the prior art.
In addition, the transmitting device may add COT remain indication respectively corresponding to beams, i.e., applied beam information corresponding to the COT remain indication, and the receiving device can know the COT remaining duration is specifically applied to which beams, and thus know which beams are specifically used for data communication, which thereby can solve the problem 2 existing in the prior art.
In one embodiment, for a multi-beam high-frequency communication scenario, the transmitting device may add COT remaining duration indication of one or more beams, the indication information being indicated by upper layer signaling, and 1-bit indication may be used for each indicated beam to indicate whether the COT remain indication can be applied to the beam.
For example, 0 indicates that the COT remain indication cannot be applied to the beam (indicating that a COT remain of an related beam is 0 or indicating that an LBT for a beam in that direction has failed, i.e., no COT has been acquired), and 1 means that the COT remain indication can be applied to the beam (i.e., indicating that a COT remaining of the related beam is the same as an indicated value).
After acquiring the COT information, the transmitting device transmits the COT information to the receiving device through the first message, where when the transmitting device is a network device, the first message may be, for example, a DCI message, etc., and the receiving device may determine, based on the COT information in the first message, a maximum indicated COT remaining duration and/or a communication beam.
The present embodiment provides a method for determining an available duration for data communication, which is applied to a high frequency band, the transmitting device may acquire the COT remaining duration information and/or the application beam indication information through the LBT process and indicate the COT remaining duration information and/or the application beam indication information to the receiving device through the first message, and the receiving device can accurately determine the maximum indicated COT remaining duration and/or the communication beam, to solve the problem that the existing method of determining an available duration for data communication cannot be applied to a high-frequency band, and enabling high-frequency communication between communication devices.
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, and the maximum indicated value being an indicated symbol value; and the maximum indicated value is related to a maximum COT length and a sub-carrier spacing SCS. The maximum COT length is a maximum indicated COT remaining duration which needs to be achieved in high-frequency communication, i.e., the maximum COT length is 5 ms.
In one embodiment, when a maximum SCS is 960 KHz, a maximum value of the maximum symbol value is 4480; when the maximum SCS is 480 KHz, the maximum value of the maximum symbol value is 2240; and when the maximum SCS is 120 KHz, the maximum value of the maximum symbol value is 560.
In one embodiment, according to a conversion relationship between the number of symbols and high-frequency COT remain indication, i.e., COT remaining duration=the number of symbols/the number of symbols contained in one slot/the number of slots contained in each 1 ms subframe, when a maximum symbol value indicated by the transmitting device is 4480, for 960 KHz, a maximum COT remaining duration that can be indicated is (4480/14)/64=5 ms, i.e., the maximum COT remaining duration that can be indicated is 5 ms, thus, the need to achieve a maximum indicated COT remaining duration of 5 ms in high-frequency communication can be achieved.
In some embodiments, the maximum indicated value is also related to a reference maximum indicated range, a reference SCS index, and a reference maximum channel occupy time.
In one embodiment, the maximum indicated value is calculated by a following formula:
In one embodiment, for high-frequency communication, the maximum COT length T max_cot=5 ms, μ represents a corresponding sub-carrier spacing SCS, e.g., μ=5 corresponds to SCS=480 KHz, μ=6 corresponds to SCS=960 KHz, the reference maximum indicated range ref_max_value=1120, the reference SCS index μ0=3 (corresponds to SCS=120 KHz), and the reference maximum channel occupy time ref_cot=10 ms, i.e., the above formula can be specifically expressed as:
According to the above formula, combined with Table 1, the following can be obtained:
Thus, based on the above formula, the transmitting device can determine the maximum indicated value for indicating a longer COT remaining duration, i.e., solving the problem 1 existing in the prior art by expanding the indicated range.
It can be understood that, in a practical application, the transmitting device may use the above formula for calculation, or may directly use the above result, for example: CO-Duration::=INTEGER (0 . . . 4480); or CO-Duration::=INTEGER (0 . . . 2240); or CO-Duration::=INTEGER (0 . . . 560).
In some embodiments, the maximum indicated value is also related to the number of slots contained in each subframe and the number of symbols contained in one slot.
In one embodiment, the maximum indicated value is calculated by a following formula:
In one embodiment, for high-frequency communication, the maximum COT length T max_cot=5 ms, μ represents a corresponding sub-carrier spacing SCS, e.g., μ=5 corresponds to SCS=480 KHz, μ=6 corresponds to SCS=960 KHz, and μ=3 corresponds to SCS=120 KHz, Nslotsubframe, μ represents the number of slots contained in each 1 ms subframe corresponding to an SCS, and Nsymbslot represents the number of symbols contained in one slot, i.e., the above formula can be specifically expressed as:
According to the above formula, combined with Table 1, the following can be obtained:
Thus, based on the above formula, the transmitting device can determine the maximum indicated value for indicating a longer COT remaining duration, i.e., solving the problem 1 existing in the prior art by expanding the indicated range.
It can be understood that, in a practical application, the transmitting device may use the above formula for calculation, or may directly use the above result, for example: CO-Duration::=INTEGER (0 . . . 4480); or CO-Duration::=INTEGER (0 . . . 2240); or CO-Duration::=INTEGER (0 . . . 560).
In some embodiments, the COT remaining duration information includes a first indicated value; and the first indicated value includes any one of the indicated symbol value, a symbol value contained in a half slot, or a symbol value contained in a slot.
In one embodiment, the transmitting device may indicate a COT duration in a way of transmitting any one of the indicated symbol value, the symbol value contained in a half slot, or the symbol value contained in a slot, and correspondingly, the receiving device may perform, according to an advance agreement, for example, a communication specification, processing on the first indicated value, to obtain a corresponding application value. Thus, the COT remaining duration information can be used for indicating a longer COT remaining duration, which thereby can solve the problem 1 existing in the prior art.
In some embodiments, the method further includes:
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
In some embodiments, a method for determining an available duration for data communication is provided, which is applied to a receiving device.
In one embodiment, the COT remaining duration information is less than or equal to a maximum indicated value, i.e., the receiving device receives a value indicated by the transmitting device by expanding an indicated range.
In one embodiment, the COT remaining duration information includes a first indicated value; and the first indicated value includes any one of an indicated symbol value, a symbol value contained in a half slot, or a symbol value contained in a slot, i.e., the receiving device receives a value indicated by the transmitting device by increasing an indicated granularity.
When the COT remaining duration information is less than or equal to the maximum indicated value, the determining, according to the COT remaining duration information, the available duration for data reception or transmission includes: S221, determining, according to a conversion relationship between an indicated value and a COT remaining duration, a first COT remaining duration corresponding to the maximum indicated value; and determining that the available duration for data reception or transmission is less than or equal to the first COT remaining duration.
In addition, when the COT remaining duration information includes the first indicated value, the determining, according to the COT remaining duration information, the available duration for data reception or transmission includes: S222, determining, according to the first indicated value and a scale factor, a second indicated value; determining, according to the second indicated value, and a conversion relationship between an indicated value and a COT remaining duration, a second COT remaining duration corresponding to the second indicated value; and determining that the available duration for data reception or transmission is less than or equal to the second COT remaining duration.
The first indicated value can be understood as an indicated value received by the receiving device, the scale factor can be understood as a multiplier by which the first indicated value is scaled, and the second indicated value is an indicated value used by the receiving device for actual application.
In some embodiments, the determining, according to the first indicated value and the scale factor, the second indicated value includes: determining a product of the first indicated value and the scale factor to be the second indicated value. Thus, the receiving device scales the first indicated value by the scale factor to obtain the second indicated value which is greater than the first indicated value, and the second indicated value can indicate a COT remaining duration which is greater than a COT remaining duration indicated by the first indicated value, and thus, the receiving device may determine a corresponding COT remaining duration based on the second indicated value.
In some embodiments, when the first indicated value is an indicated symbol value, the scale factor is related to a maximum COT length, a sub-carrier spacing SCS, a reference SCS index, and a reference maximum channel occupy time.
In one embodiment, the scale factor is calculated by a following formula:
In one embodiment, for high-frequency communication, the maximum COT length T max_cot=5 ms, μ represents a corresponding sub-carrier spacing SCS, e.g., μ=5 corresponds to SCS=480 KHz, μ=6 corresponds to SCS-960 KHz, the reference SCS index μ0=3 (corresponds to SCS=120 KHz), and the reference maximum channel occupy time ref_cot=10 ms, i.e., the above formula can be specifically expressed as:
According to the above formula, combined with Table 1, the following can be obtained:
It can be understood that, in a practical application, the receiving device may use the above formula for calculation, or it may directly use a result of the above calculation to scale indication data configured by the transmitting device.
In some embodiments, the scale factor is determined and obtained based on a preset rule; where the preset rule includes:
A specific value of the scale factor may also be configured and indicated by upper layer signaling of the transmitting device, which can serve a purpose of flexible indication.
In one embodiment, if the transmitting device and the receiving device agree in advance that the first indicated value is data in slots, the scale factor may be set to a preset value.
If it is agreed that the first indicated value is the value of symbols contained in the half slot, a value of a pre-set scale factor may be set to 7, i.e., scale_factor=7, a maximum value transmitted by the transmitting device is the same as that in low-frequency communication, i.e., the maximum number of symbols is still 1120, and after receiving the specific value, the receiving device multiplies the specific value by 7, and obtains a corresponding second indicated value.
In the present embodiment, an advantage of setting the scale factor to 7 is that in high-frequency communication, as an SCS increases, indicating a granularity of a half slot (a normal cyclic prefix (CP) length is 7 symbols and an extended CP length is 6 symbols) can satisfy the need for indication and easily indicate to an integer number of slots.
In addition, if it is agreed that the first indicated value is the value of symbols contained in the slot, the value of the pre-set scale factor may be set to 14, i.e., scale_factor=14, the maximum value transmitted by the transmitting device is the same as that in low-frequency communication, i.e., the maximum number of symbols is still 1120, and after receiving the specific value, the receiving device multiplies the specific value by 14, and obtains the corresponding second indicated value.
In the present embodiment, when the scale_factor is set to 14, it is equivalent to that an indicated granularity is slot, i.e., after receiving the first indicated value, the receiving device calculates the COT remaining duration on the basis that an agreed scale factor is a number of slots.
It can be understood that after the receiving device parses and processes indicated data, a second indicated value obtained may be understood as the number of slots, for example, if the second indicated value is 100, it may be understood that the COT remaining duration is 100 slots; or, the second indicated value obtained may be understood as a half of the number of slots, for example, if the second indicated value is 100, it may be understood that the COT remaining duration is 50 slots.
In some embodiments, the method further includes: determining, according to the application beam indication information, an applied beam corresponding to the COT remaining duration information.
In one embodiment, the application beam indication information includes beam information and a beam number, the beam information and the beam number being configured by a network device, and the above method further includes: if an indicated value corresponding to a target beam is a first value, determining that the COT remaining duration information is not to be applied to the target beam, and if the indicated value corresponding to the target beam is a second value, determining that the COT remaining duration information is applied to the target beam. The network device may be a transmitting device or a receiving device, the transmitting device being different from the receiving device.
In one embodiment, the application beam indication information may for example be indicated by a bitmap, the bitmap indicating whether related COT remaining duration indication can be applied to a related beam, e.g. the first value of 0 indicates that it cannot be applied, a second value of 1 indicates that it can be applied, or vice versa.
For example, assuming that the network device is configured with 4 beams and SCS=960 KHz, COT information received by the receiving device is shown in Table 2 below:
As shown in Table 2 above, the receiving device receives indicated information about COT remain from the transmitting device, where CO-Duration=2240 is a value calculated from the indicated information, unit thereof is symbol, and converted time there of is 2.5 ms.
For the beam identification (Beam-1), an indication of 0 represents that COT remain of a beam Beam-1 is 0 symbols; the same is true for a beam Beam-4.
For the beam identification (Beam-2), an indication of 1 represents that COT remain of Beam-2 is 2240 symbols, or a COT remaining duration is 2.5 ms; the same is true for Beam-3.
In addition, for a beam direction with an indication of 0 (i.e.: a beam direction whose COT remain is 0 symbols or whose LBT has failed), the receiving device may not detect a physical downlink control channel (PDCCH) of a related beam direction, which can have an effect of power saving.
In some embodiments, the method further includes: receiving PUSCH scheduling information transmitted by the transmitting device; determining, according to the PUSCH scheduling information, one or more of the following: transmitting time of a PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH.
In the embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device or grant information of a higher level signaling configured grant.
In the embodiments, the method further includes: in a case that a first condition is satisfied, converting the first LBT type to a second LBT type; where the first condition includes one or more of the following: transmitting time of the PUSCH scheduling information is within an available duration range corresponding to the COT remaining duration information; beam information in the PUSCH scheduling information contains COT beam information; and the PUSCH scheduling information contains COT-related information.
In one embodiment, the second LBT type includes a LBT type-2 or a LBT type-3.
In one embodiment, the receiving device may apply a beam corresponding to PUSCH data. In one embodiment, it may be as follows:
In one embodiment, when converting the LBT type indicated in Step 1 to other LBT types, the receiving device may convert the LBT type-1 to LBT type-2 or type-3, where the LBT type-2 may be that gNB/UE performs listening in slots to determine an occupy situation of a channel, and determines, according to a listening result, whether to transmit; and the LBT type-3 may be that the gNB/UE directly performs transmission without listening.
In the embodiments, the method further includes: in a case that receiving time of the COT information satisfies a second condition, converting the first LBT type to the second LBT type; where the second condition includes: the receiving time of the COT information is not earlier than receiving time of the PUSCH scheduling information, or the receiving time of the PUSCH scheduling information is not later than the receiving time of the COT information.
In one embodiment, the receiving device and/or the transmitting device may further constrain LBT type conversion:
In the embodiments, whether the beam information in the PUSCH scheduling information includes the COT beam information or whether the PUSCH scheduling information includes the COT-related information is determined in any one of following ways: configured via higher level signaling; indicated via DCI; the receiving device assumes that the beam information in the PUSCH scheduling information includes the COT beam information or the PUSCH scheduling information includes the COT-related information.
In one embodiment, in physical signaling indicating the COT information, a corresponding beam included may be implicitly indicated, i.e., beam application information is not included in the physical signaling indicating the COT information, and the receiving device and/or the transmitting device may determine the beam application information by any of following indicating methods:
It should be noted that the beam information in the present disclosure may be indicated by a QCL type (quasi-colocation parameter).
It should be understood that although steps in flowcharts of the aforementioned embodiment are shown sequentially as indicated by arrows, these steps are not necessarily executed sequentially in an order indicated by the arrows. Unless expressly stated herein, there is no strict order limitation on the execution of these steps, which may be executed in other orders. In one embodiment, at least a part of steps in the drawings may include sub-steps or phases, and these sub-steps or stages do not necessarily have to be completed at the same time, but may be executed at different times, and execution orders thereof are not necessarily sequential, but they may be executed in turn or alternately with at least a part of other steps or sub-steps or phases of the other steps.
In some embodiments, an apparatus for determining an available duration for data communication is provided, which is applied to a receiving device.
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, and the maximum indicated value being an indicated symbol value; and
In some embodiments, the maximum indicated value includes a maximum symbol value;
In some embodiments, the COT remaining duration information includes a first indicated value, the first indicated value including any one of an indicated symbol value, a symbol value contained in a half slot, or a symbol value contained in a slot;
In some embodiments, the determining, according to the first indicated value and the scale factor, the second indicated value includes:
In some embodiments, in a case that the first indicated value is the indicated symbol value, the scale factor is determined according to a maximum COT length, a sub-carrier spacing SCS, a reference SCS index, and a reference maximum channel occupy time.
In some embodiments, the scale factor is calculated by a following formula:
In some embodiments, the scale factor is determined based on a preset rule;
In some embodiments, the method further includes:
In some embodiments, the application beam indication information includes beam information and a beam number, the beam information and the beam number being configured by the receiving device, and the method further includes:
In some embodiments, the method further includes:
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
In some embodiments, the method further includes:
In some embodiments, whether the beam information in the PUSCH scheduling information includes the COT beam information or whether the PUSCH scheduling information includes the COT-related information is determined in any one of following ways:
In some embodiments, the second LBT type includes a LBT type-2 or a LBT type-3.
In some embodiments, the method further includes:
In some embodiments, an apparatus for determining an available duration for data communication is provided, which is applied to a transmitting device.
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, the maximum indicated value being an indicated symbol value; and the maximum indicated value is determined according to a maximum COT length and a sub-carrier spacing SCS.
In some embodiments, the maximum indicated value is further determined according to a reference maximum indicated range, a reference SCS index, and a reference maximum channel occupy time.
In some embodiments, the maximum indicated value is calculated by a following formula:
In some embodiments, the maximum indicated value is further determined according to a number of slots contained in each subframe and a number of symbols contained in one slot.
In some embodiments, the maximum indicated value is calculated by a following formula:
In some embodiments, the COT remaining duration information includes a first indicated value; and
In some embodiments, the maximum indicated value includes a maximum symbol value;
In some embodiments, the method further includes:
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
A specific limitation of the apparatus for determining the available duration for data communication can be found in the above limitation of the method for determining the available duration for data communication, which will not be repeated herein. Various modules of the aforementioned apparatus for determining the available duration for data communication may be implemented in whole or in part by software, hardware and combinations thereof. Each of the aforementioned modules may be embedded in or independent from a processor in a computer device in a form of hardware, or may be stored in a memory in the computer device in a form of software and to be called by the processor to execute operations corresponding to the above modules.
In some embodiments, a receiving device is provided.
The memory is configured to store a computer program; the transceiver is configured to transmit and receive data under control of the processor; and the processor is configured to read the computer program in the memory and execute following operations:
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, and the maximum indicated value being an indicated symbol value; and
In some embodiments, the maximum indicated value includes a maximum symbol value;
In some embodiments, the COT remaining duration information includes a first indicated value, the first indicated value including any one of an indicated symbol value, a symbol value contained in a half slot, or a symbol value contained in a slot;
In some embodiments, the determining, according to the first indicated value and the scale factor, the second indicated value includes:
In some embodiments, in a case that the first indicated value is the indicated symbol value, the scale factor is determined according to a maximum COT length, a sub-carrier spacing SCS, a reference SCS index, and a reference maximum channel occupy time.
In some embodiments, the scale factor is calculated by a following formula:
In some embodiments, the scale factor is determined based on a preset rule;
In some embodiments, the method further includes:
In some embodiments, the application beam indication information includes beam information and a beam number, the beam information and the beam number being configured by the receiving device, the method further includes:
In some embodiments, the method further includes:
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
In some embodiments, the method further includes:
In some embodiments, whether the beam information in the PUSCH scheduling information includes the COT beam information or whether the PUSCH scheduling information includes the COT-related information is determined in any one of following ways:
In some embodiments, the second LBT type includes a LBT type-2 or a LBT type-3.
In some embodiments, the method further includes:
In some embodiments, a transmitting device is provided.
The memory is configured to store a computer program; the transceiver is configured to transmit and receive data under control of the processor; and the processor is configured to read the computer program in the memory and execute following operations:
In some embodiments, the application beam indication information includes beam information and a beam number, the beam information and the beam number being configured by the transmitting device, and the method further includes:
In some embodiments, the COT remaining duration information is less than or equal to a maximum indicated value, the maximum indicated value being an indicated symbol value; and
In some embodiments, the maximum indicated value is further determined according to a reference maximum indicated range, a reference SCS index, and a reference maximum channel occupy time.
In some embodiments, the maximum indicated value is calculated by a following formula:
In some embodiments, the maximum indicated value is further determined according to a number of slots contained in each subframe and a number of symbols contained in one slot.
In some embodiments, the maximum indicated value is calculated by a following formula:
In some embodiments, the COT remaining duration information includes a first indicated value; and
In some embodiments, the maximum indicated value includes a maximum symbol value;
In some embodiments, the method further includes: transmitting PUSCH scheduling information to the receiving device, where the PUSCH scheduling information is configured for instructing the receiving device to determine, according to the PUSCH scheduling information, one or more of the following: transmitting time of a PUSCH, beam information of the PUSCH, and a first LBT type of the PUSCH.
In some embodiments, the PUSCH scheduling information includes grant information for dynamic scheduling of the transmitting device and/or grant information of a higher level signaling configured grant.
In the aforementioned devices, the memory and the processor are directly or indirectly electrically connected to each other for a purpose of transmission or interaction of data. For example, these elements may be electrically connected to each other via one or more communication buses or signal lines, e.g., they may be connected via a bus. The memory stores an computer executable instruction for implementing the method for determining an available duration for data communication, and includes at least one software function module which may be stored in the memory in a form of software or firmware, and the processor executes various functional applications as well as data processing by running a software program as well as a module stored in the memory.
The memory may be, but is not limited to, a random access memory (RAM), a read only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electric erasable programmable read-only memory (EEPROM), etc. The memory is configured to store a program and the processor executes the program after receiving an execution instruction. Further, the software program as well as the module in the aforementioned memory may further include an operating system, which may include various software components and/or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.) and may be in mutual communication with various hardware or software components and to provide an operating environment for other software components.
The processor may be an integrated circuit chip with signal processing capabilities. The aforementioned processor may be a general purpose processor, including a central processing unit (CPU), a network processor (NP), etc. Various disclosed methods, steps, and logical block diagrams in the embodiments of the present disclosure may be implemented or executed. The general purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.
In some embodiments, a computer readable storage medium is provided, and the computer readable storage medium store a computer executable instruction, which when being executed by a processor, is configured for implementing the steps of various method embodiments in the present disclosure.
In some embodiments, a computer program product is provided, including a computer program, which when being executed by a processor, is configured for implementing the steps of various method embodiments in the present disclosure.
Implementing all or part of the processes in the methods of the aforementioned embodiments may be accomplished by instructing related hardware by means of a computer program, the computer program may be stored in a non-volatile computer readable storage medium, and when being executed, the computer program may include the processes of the aforementioned method embodiments. Any reference to a memory, storage, a database, or other media used in the embodiments provided in the present disclosure may include non-volatile and/or volatile memory. The non-volatile memory may include a read only memory (ROM), a programmable ROM (PROM), an electrically programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), or a flash memory. The volatile memory may include a random access memory (RAM) or an external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, for example, a static RAM (SRAM), a dynamic RAM (DRAM), a synchronous DRAM (SDRAM), a dual data rate SDRAM (DDRSDRAM), an enhanced SDRAM (ESDRAM), a synchlink DRAM (SLDRAM), a rambus direct RAM (RDRAM), a direct rambus dynamic RAM (DRDRAM), and a rambus dynamic RAM (RDRAM).
Other embodiments of the present disclosure will easily come to mind upon consideration of the specification and practice of the application disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptive modifications of the present disclosure which follow general principles of the present disclosure and include common knowledge or customary technical means in the present field which are not disclosed in the present disclosure. The specification and the embodiments are to be regarded as exemplary only, and the true scope and spirit of the present disclosure is indicated by following claims.
It should be understood that the present disclosure is not limited to a precise structure which has been described above and shown in the drawings, and that various modifications and changes may be made without departing from scope thereof. The scope of the present disclosure is limited only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202210023813.7 | Jan 2022 | CN | national |
| 202210826254.3 | Jul 2022 | CN | national |
| 202210934794.3 | Aug 2022 | CN | national |
This application is a national stage of International Application No. PCT/CN2022/138184, filed on Dec. 9, 2022, which claims priority to Chinese patent application No. 2022100238137, filed on Jan. 10, 2022; Chinese patent application No. 2022108262543, filed on Jul. 14, 2022; and Chinese patent application No. 2022109347943, filed on Aug. 4, 2022. All of the aforementioned applications are hereby incorporated by reference in their entireties.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/138184 | 12/9/2022 | WO |
