JPWO2021073032A5 - - Google Patents

Description

TECHNICAL FIELD The present invention relates to the field of wireless communication technology, and more particularly to a sidelink feedback method, device and storage medium.

During sidelink (SL) transmission, the sidelink feedback channel may be transmitted by the terminal equipment (user equipment, UE). However, it has not been determined whether more than one sidelink feedback channel can be transmitted simultaneously by the terminal.

Embodiments of the present disclosure provide sidelink feedback methods, apparatus and storage media configured to determine the manner of transmission of a sidelink feedback channel by a terminal.

According to a first aspect, one embodiment of the present disclosure provides a sidelink feedback method. The method includes obtaining, by a first terminal device, first configuration information. The first configuration information is used to determine a sidelink feedback mode, or the first configuration information determines the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. used to

According to a second aspect, one embodiment of the present disclosure provides a sidelink feedback method. The method includes transmitting, by the electronic device, first configuration information to a first terminal device. The first configuration information is used to determine a sidelink feedback mode, or the first configuration information determines the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. used to

According to a third aspect, one embodiment of the present disclosure provides a first terminal device including a processing unit.

The processing unit is configured to obtain first configuration information. The first configuration information is used to determine a sidelink feedback mode, or the first configuration information determines the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. used to

According to a fourth aspect, one embodiment of the disclosure provides an electronic device including a transmission unit.

The sending unit is configured to send first configuration information to the first terminal. The first configuration information is used to determine a sidelink feedback mode, or the first configuration information determines the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. used to

According to a fifth aspect, one embodiment of the present disclosure provides a first terminal device including a processor and a memory storing a computer program executable on the processor.

The processor, when executing the computer program, is configured to perform the steps of the sidelink feedback method performed by the first terminal device.

According to a sixth aspect, an embodiment of the present disclosure provides an electronic device including a processor and memory storing a computer program executable on the processor.

The processor, when executing the computer program, is configured to perform the steps of the sidelink feedback method performed by the electronic device.

According to a seventh aspect, one embodiment of the disclosure provides a chip including a processor. The processor is configured to recall and execute a computer program from memory to cause the chip-equipped device to perform the sidelink feedback method performed by the first terminal device.

According to an eighth aspect, one embodiment of the disclosure provides a chip including a processor. The processor is configured to recall and execute a computer program from memory to cause the device to which the chip is attached to perform the sidelink feedback method performed by the electronic device.

According to a ninth aspect, an embodiment of the disclosure provides a storage medium storing an executable program. The executable program, when executed by a processor, implements a sidelink feedback method performed by the first terminal device.

According to a tenth aspect, an embodiment of the disclosure provides a storage medium storing an executable program. The executable program, when executed by a processor, implements a sidelink feedback method performed by the electronic device.

According to an eleventh aspect, an embodiment of the disclosure provides a computer program product comprising computer program instructions. The computer program instructions enable a computer to perform a sidelink feedback method performed by the first terminal device.

According to a twelfth aspect, an embodiment of the disclosure provides a computer program product comprising computer program instructions. The computer program instructions enable a computer to perform a sidelink feedback method performed by the electronic device.

According to a thirteenth aspect, one embodiment of the present disclosure provides a computer program product enabling a computer to perform a sidelink feedback method performed by said first terminal device.

According to a fourteenth aspect, an embodiment of the present disclosure provides a computer program product enabling a computer to perform a sidelink feedback method performed by said electronic device.

One embodiment of the present disclosure provides a sidelink feedback method, apparatus and storage medium. The method includes obtaining first configuration information by a first terminal device. The first configuration information is used to determine a sidelink feedback mode, or the first configuration information determines the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. used to Accordingly, the first terminal can determine whether the first terminal itself supports simultaneous transmission of two or more sidelink feedback channels. Alternatively, the first terminal may determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal itself.

FIG. 4 is a schematic diagram of a transmission resource selection process in a first mode according to the present disclosure; FIG. 5 is a schematic diagram of a transmission resource selection process in a second mode according to the present disclosure; 1 is a schematic diagram of service transmission in unicast transmission mode according to the present disclosure; FIG. 1 is a schematic diagram of service transmission in multicast transmission mode according to the present disclosure; FIG. 1 is a schematic diagram of service transmission in broadcast transmission mode according to the present disclosure; FIG. FIG. 3 is a schematic diagram of a sidelink feedback process according to the present disclosure; FIG. 4 is a schematic diagram of sending feedback information by a first terminal device according to the present disclosure; 4 is a schematic flowchart of optional processing of a sidelink feedback method according to an embodiment of the present disclosure; 1 is a schematic diagram of a structure forming a first terminal device according to an embodiment of the present disclosure; FIG. 1 is a schematic diagram of a structure forming an electronic device according to an embodiment of the present disclosure; FIG. 1 is a schematic diagram of a hardware structure forming an apparatus according to an embodiment of the present disclosure; FIG.

For a more detailed understanding of the features and technical content of the embodiments of the present disclosure, implementations of the embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The accompanying drawings are provided for reference and explanation only and are not intended to limit the embodiments of the present disclosure.

Unlike conventional cellular systems that transmit and receive communication data through base stations, D2D communication is based on SL transmission technology, so it has high spectral efficiency and low transmission delay. The Internet of Vehicle Systems uses D2D communication (ie, direct device-to-device communication). The Third Generation Partnership Project (3GPP) defines two transmission modes, a first mode (also called mode A) and a second mode (also called mode B). The first mode is that the network device allocates transmission resources to the terminal devices, and the second mode is that the terminal devices independently select the transmission resources.

For the first mode, transmission resources for a terminal are allocated by the base station, and the terminal transmits data on the sidelink according to the resources allocated by the base station, as shown in FIG. The base station may allocate a single transmission resource to the terminal or may allocate semi-static transmission resources to the terminal.

For the second mode, the terminal selects transmission resources within the resource pool for data transmission, as shown in FIG.

NR-V2X (new radio-vehicle to everything) needs to support autonomous driving. Therefore, there is an increasing demand for data interaction between vehicles, such as higher throughput, lower delay, higher reliability, wider coverage, and more flexible resource allocation.

NR-V2X supports broadcast, unicast and multicast transmission modes. As for the unicast transmission mode, as shown in FIG. 3, only one receiving-side terminal device is provided, and unicast transmission is performed between UE1 and UE2. For multicast transmission mode, the receivers are all terminals within a communication group or all terminals within a certain transmission distance. For multicast transmission mode, UE1, UE2, UE3 and UE4 form a communication group as shown in FIG. Here, UE1 is a terminal device on the transmitting side and is configured to transmit data, and UE2, UE3 and UE4 in the group are all terminal devices on the receiving side and are configured to receive data. It is For broadcast transmission mode, the recipient may be any terminal device. As shown in FIG. 5, UE1 is a transmitting terminal device configured to transmit data, and other terminal devices around UE1 such as UE2, UE3, UE4, UE5, UE6 and UE7 are , are terminal devices on the receiving side configured to receive data.

In NR-V2X, a sidelink feedback channel is introduced to improve system reliability. FIG. 6 shows a schematic diagram of the sidelink feedback process. For unicast transmission mode, the terminal device on the transmitting side sends sidelink data (physical sidelink control channel (PSCCH)) and physical sidelink shared channel (PSSCH) to the terminal device on the receiving side. ))). The terminal on the receiving side sends feedback information, such as hybrid automatic repeat request (HARQ) feedback information, to the terminal on the transmitting side. The terminal device on the transmitting side determines whether retransmission of data is necessary based on the feedback information of the terminal device on the receiving side. Here, HARQ feedback information is carried in a sidelink feedback channel, such as a physical sidelink feedback channel (PSFCH).

In some embodiments, side feedback may be activated or deactivated by pre-configured information or network configuration information. When sidelink feedback is activated, the receiving terminal device receives the sidelink data transmitted from the transmitting terminal device and, depending on the detection result, sends a HARQ acknowledgment (ACK) to the transmitting terminal device. ) or a negative acknowledgment (NACK). The terminal device on the transmitting side either transmits retransmission data or transmits new data according to the feedback information of the terminal device on the receiving side. If the sidelink feedback is deactivated, the receiving terminal does not need to send any feedback information and the sending terminal normally sends data in a blind transmission manner. For example, the terminal device on the transmitting side does not determine whether or not to transmit retransmission data according to the feedback information of the terminal device on the receiving side, but repeatedly transmits each sidelink data K times.

To reduce the PSFCH overhead, the PSFCH transmission resources included in one timeslot may be used for sending feedback information for sidelink data on N timeslots. Optionally, N=1, 2 and 4, where N is pre-configured or configured by the network equipment. FIG. 7 shows a schematic diagram of sending feedback information by a terminal device, taking N=4 as an example. For the PSSCH transmitted in time slot 2, time slot 3, time slot 4 and time slot 5, any corresponding feedback information is transmitted in time slot 7. Therefore, timeslot 2, timeslot 3, timeslot 4 and timeslot 5 may be considered a timeslot set, and the PSFCH corresponding to the PSSCH transmitted in the timeslot set is transmitted in the same timeslot.

For unicast transmission and if sidelink feedback is activated, if UE1 sends PSSCH to UE2 in timeslot 2, UE2 needs to send sidelink feedback to UE1 in timeslot 7. If UE3 sends the PSSCH to UE2 in timeslot 3, UE2 needs to send sideline feedback to UE3 in timeslot 7. Therefore, the terminal device needs to send two pieces of feedback information in time slot 7 . That is, the terminal device needs to transmit two sidelink feedback channels in time slot 7. These two feedback channels are used to carry the feedback information sent to UE1 and UE3.

If the terminal needs to transmit more than one side feedback channel simultaneously, it may include the following two modes.

In mode 1, the terminal transmits two sidelink feedback channels simultaneously. The two sidelink feedback channels share the transmission power of the terminal. If the terminal's transmit power is limited, the transmit power of each sidelink feedback channel may be low, thereby degrading the performance of the PSFCH.

In mode 2, the terminal transmits only one sidelink feedback channel. The terminal device selects the sidelink feedback channel corresponding to the sidelink data with the highest priority according to the priority of the sidelink data corresponding to the sidelink feedback information, and transmits the sidelink data with the highest priority. performance can be ensured.

Embodiments of the present disclosure provide a sidelink feedback method. The sidelink feedback method according to embodiments of the present disclosure is applicable to global systems of mobile communication (GSM), code division multiple access (CDMA) systems, wideband code division multiple access ( wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (Fduplex) ) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) It can be applied to various communication systems such as systems or 5G systems.

FIG. 8 shows a schematic flowchart of optional processing of a sidelink feedback method according to an embodiment of the present disclosure. The method includes the following steps.

In step S101, the first terminal device acquires first configuration information. The first configuration information is used to determine the sidelink feedback mode, or the first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. Used.

In some embodiments, the first terminal device may obtain the first configuration information in response to preconfigured information. In certain embodiments, the preconfigured information may be resource pool configuration information, and the first configuration information is transmitted in the resource pool configuration information. Alternatively, the preconfigured information may include capability information of the first terminal, and the capability information of the first terminal may be a capability level or capability category of the first terminal. . The maximum number of concurrent sidelink feedback channels that can be transmitted by first terminals having different capability levels or categories may differ. Therefore, depending on the capability information of the first terminal, the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal corresponding to the capability information can be determined.

In some other embodiments, when the first terminal is located within the coverage of a cell, the first terminal receives the first terminal transmitted from the network equipment corresponding to that cell. configuration information may be received. In a particular implementation, when the network device sends the first configuration information to the first terminal device, the first configuration information is a broadcast message, radio resource control (RRC) signaling or downlink It may be transmitted in control information (downlink control information (DCI)). For example, the network device transmits resources for sidelink transmission to the first terminal device via a system information block (SIB), and the first configuration information is carried in the SIB information. good too. In another example, for the first terminal in connected state (RRC connected), the network device may configure resource pool information for the first terminal via RRC signaling, the resource pool configuration information being , may include the first configuration information. Alternatively, the network device may configure the sidelink transmission resources of the first terminal device via DCI, and the first configuration information may be transmitted in the DCI.

In some other embodiments, the first terminal may receive first configuration information sent from the second terminal. In certain implementations, when the second terminal transmits the first configuration information to the first terminal, the first configuration information is a physical sidelink broadcast channel (PSBCH), PSCCH, PSSCH or sidelink It may be transmitted in RRC signaling. Here, the second terminal device may be a group head terminal device of a communication group in which the terminal device that acquires the first configuration information is arranged, and the group head terminal device is a resource in the communication group. It may be a terminal device having functions such as management, resource allocation, resource scheduling, or resource control.

In some embodiments, if the first configuration information includes a first information domain, and the first information domain is 1 bit, then the first configuration information is Used. The first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal if the first information domain is N bits, where N is greater than 1. A positive integer.

wherein, if the first configuration information is used to determine the sidelink feedback mode, the sidelink feedback mode is at least a mode in which only one sidelink feedback channel is simultaneously transmitted by the first terminal; Or it may include a mode in which two or more sidelink feedback channels are transmitted simultaneously by the first terminal.

Here, the mode of simultaneously transmitting two or more sidelink feedback channels by a first terminal may be understood as allowing the first terminal to simultaneously transmit multiple sidelink feedback channels. , the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal is not limited. The first terminal determines a number of sidelink feedback channels to be transmitted by the first terminal as a function of the detected sidelink data. For example, as shown in FIG. 7, the first terminal device has three sidelink data transmitted in broadcast mode (no need to transmit feedback information) and unicast mode (need to transmit feedback information ) detected in timeslot 2, 2 sidelink data sent in broadcast mode (no need to send feedback information) and unicast mode 3 sidelink data including 1 sidelink data transmitted in (need to send feedback information) detected in time slot 3, no sidelink data detected in time slot 4, no sidelink data detected in time slot 5 When detecting one sidelink data transmitted in unicast mode (need to transmit feedback information), the number of sidelink feedback channels that the first terminal device needs to transmit in timeslot 7 is 4. is.

If the first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal, the number of sidelink feedback channels to be transmitted by the first terminal is: If less than or equal to the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal, the first terminal transmits all sidelink feedback channels to be transmitted. If the number of sidelink feedback channels that need to be transmitted by the first terminal is greater than the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal, the first terminal According to the priority of data corresponding to a certain sidelink feedback channel, among the sidelink feedback channels that need to be transmitted, M sidelink feedback channels with the highest priority are used as sidelink feedback channels to be transmitted decide. The determined M sidelink feedback channels are used by the first terminal for transmission. M is equal to the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal.

Therefore, if the sidelink feedback channel that needs to be transmitted by the first terminal is the first sidelink feedback channel set, the first terminal corresponds to the sidelink feedback channel that needs to be transmitted. According to the priority of the data, select the M highest priority sidelink feedback channels from the first set of sidelink feedback channels to form a second set of sidelink feedback channels. The second sidelink feedback channel set is a subset of the first sidelink feedback channel set. In the second set of sidelink feedback channels, the number of sidelink feedback channels may be less than or equal to the maximum number of sidelink feedback channels simultaneously transmittable by the first terminal. For example, if the number of sidelink feedback channels that need to be transmitted by the first terminal is 10 and the maximum number of sidelink feedback channels that can be simultaneously transmitted by the first terminal is 6, then the first According to the priority of the data corresponding to the sidelink feedback channels that need to be transmitted, the terminal device selects the six sidelink feedback channels with the highest priority among the 10 sidelink feedback channels that need to be transmitted. as the sidelink feedback channel to be transmitted.

In some embodiments, the method may further include the following steps.

The first terminal device transmits first configuration information to the third terminal device.

Here, the first configuration information may be the maximum number of sidelink feedback channels that can be simultaneously transmitted by the first terminal device. The first terminal transmits the first configuration information to the third terminal, and thus the third terminal transmits the first configuration information in one PSFCH resource period in response to the first configuration information. A maximum number of sidelink feedback channels transmitted to one terminal may be determined.

In certain implementations, the first terminal may send the first configuration information to the third terminal via any one of PSCCH, PSSCH, PSBCH and sidelink RRC signaling.

In some other embodiments, the first terminal device may determine the second configuration information according to the first configuration information. The second configuration information is used to determine the maximum number of sidelink feedback channels that can be simultaneously transmitted by the first terminal to the third terminal. The first terminal device transmits the second configuration information to the third terminal device.

For example, the first terminal device and the second terminal device perform unicast communication, and the first terminal device and the third terminal device perform unicast communication. The number of PSFCHs that the first terminal device can simultaneously transmit and support is 4 (that is, the first configuration information). The first terminal device evenly allocates the four PSFCHs that can be transmitted simultaneously to the two unicast links. In this way, when performing unicast communication, the first terminal device and the second terminal device can simultaneously transmit two PSFCHs, and the first terminal device and the third terminal device can When performing cast communication, two PSFCHs can be transmitted simultaneously. Accordingly, the first terminal device transmits the second configuration information to the third terminal device (or the second terminal device). This is used to indicate that the first terminal can transmit two PSFCHs simultaneously to the third terminal (or the second terminal).

In one embodiment, when a first terminal and a third terminal establish a unicast link, the first terminal transmits via PSCCH, PSSCH or sidelink RRC signaling the first configuration information or Sending the second configuration information to the third terminal device.

In some embodiments, if the number of sidelink feedback channels to be transmitted is two or more, the method further includes the following steps.

The first terminal determines the power to transmit the sidelink feedback channel to transmit.

In some embodiments, the first terminal evenly allocates the transmit power of the sidelink feedback channels to be transmitted according to the maximum transmit power of the first terminal. Optionally, equal allocation of power for the sidelink feedback channels comprises either equal total power for each sidelink feedback channel or equal Power Spectral Density (PSD) for each sidelink feedback channel. include. For example, the maximum transmit power of the first terminal is P, the number of sidelink feedback channels to be transmitted is M, and thus the transmit power of each sidelink feedback channel to be transmitted is P/M is. That is, the total power of each sidelink feedback channel is equal. In another example, the maximum transmit power of the first terminal is P, the number of sidelink feedback channels to transmit is 2, each sidelink feedback channel occupies 1 PRB, and thus each The power spectral density of PRB is P/2. That is, the power spectral density of each feedback channel is the same and the total power of each feedback channel is the same. In another example, the maximum transmit power of the first terminal is P, the number of sidelink feedback channels to transmit is 2, the first sidelink feedback channel occupies 1 PRB, the second sidelink feedback channel The link feedback channel occupies 2 PRBs, thus the power spectral density of each PRB is P/3. That is, the power spectral density of each feedback channel is the same, but the total power of each feedback channel is different.

In some embodiments, the first terminal determines the power of the sidelink feedback channel to transmit according to the priority of the data corresponding to the sidelink feedback channel to transmit. Optionally, if the sum of the transmit powers of the sidelink feedback channels to be transmitted is greater than the maximum transmit power of the first terminal, the first terminal controls the sidelink feedback channels corresponding to low priority data. Reduce transmit power. Alternatively, the first terminal does not allocate transmit power to sidelink feedback channels corresponding to low priority data. Here, not allocating transmission power to the sidelink feedback channel corresponding to the sidelink data with low priority means that the transmission power allocated to the sidelink feedback channel corresponding to the sidelink data with low priority is zero. may be If the power of the sidelink feedback channel corresponding to the lowest priority is reduced to 0, and the sum of the transmit powers of each sidelink feedback channel is still greater than the maximum transmit power, then the sum of the transmit powers is: The power of the lowest priority sidelink feedback channel may be accommodated and the rest may be estimated by analogy until the sum of the transmit powers is less than or equal to the maximum transmit power of the first terminal.

For example, if the number of sidelink feedback channels to be transmitted by the first terminal device is 3, the priority of the sidelink data corresponding to the first sidelink feedback channel to be transmitted is 2, and the priority of the sidelink data to be transmitted is 2. The sidelink data corresponding to the second sidelink feedback channel has a priority of 3 and the sidelink data corresponding to the third sidelink feedback channel to be transmitted has a priority of 4. According to the sidelink power control mechanism, the transmission power of the first sidelink feedback channel to be transmitted is P1, the transmission power of the second sidelink feedback channel to be transmitted is P2, and the transmission power of the third sidelink feedback channel to be transmitted is P2. The transmit power of the sidelink feedback channel of is P3. If the sum of the transmission powers of the three sidelink feedback channels to be transmitted is greater than the maximum transmission power of the first terminal device, the first terminal device first determines the transmission power of the three sidelink feedback channels to be transmitted may reduce the transmit power of the third sidelink feedback channel corresponding to priority 4 until the sum of is less than the maximum transmit power of the first terminal. The transmission power of the third sidelink feedback channel to be transmitted is P3=0, and the transmission power P1 of the first sidelink feedback channel to be transmitted and the transmission power P2 of the second sidelink feedback channel to be transmitted If the sum is still greater than the maximum transmit power of the first terminal, the transmit power of the second sidelink feedback channel corresponding to priority 3 is further reduced. The remainder may be estimated by analogy until the sum of the transmit powers of the sidelink feedback channels transmitted by the first terminal is less than or equal to the maximum transmit power of the first terminal.

Another schematic flowchart of an optional process of the sidelink feedback method according to embodiments of the present disclosure is provided. This method includes the following steps.

The electronic device transmits first configuration information to the first terminal.

In some embodiments the electronic device is a network device. If the electronic device is a network device, the first configuration information is transmitted in at least one of broadcast messages, RRC signaling and DCI.

In some other embodiments, the electronic device is a fourth terminal. If the electronic device is a fourth terminal, the first configuration information is transmitted on at least any one of PSBCH, PSCCH, PSSCH and sidelink RRC signaling. The fourth terminal device may be a group head terminal device of a communication group in which the terminal device that acquires the first configuration information is arranged, and the group head terminal device is responsible for resource management and resource management within the communication group. It may be a terminal device with functions such as allocation, resource scheduling, or resource control.

Note that in the embodiments of the present disclosure, the description of the first configuration information is the same as the description of the first configuration information provided in S101 above, so it will not be repeated herein.

In order to be able to implement the aforementioned sidelink feedback method, the embodiment of the present disclosure further provides a first terminal device. FIG. 9 shows a schematic diagram of a structure forming a first terminal device 300 , which includes a processing unit 301 .

The processing unit 301 is configured to obtain first configuration information. The first configuration information is used to determine the sidelink feedback mode, or the first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. Used.

In some embodiments, the processing unit 301 is configured to obtain the first configuration information according to preconfigured information.

In some other embodiments, the preconfigured information includes resource pool configuration information.

In some embodiments, the preconfigured information includes capability information of the first terminal.

In some embodiments, the processing unit 301 is configured to receive first configuration information sent from the network device.

In some embodiments, the first configuration information is transmitted in at least one of broadcast messages, RRC signaling and DCI.

In some embodiments, the processing unit 301 is configured to receive first configuration information sent from the second terminal.

In some embodiments, the first configuration information is transmitted on at least any one of PSBCH, PSCCH, PSSCH and sidelink RRC signaling.

In some embodiments, if the first configuration information includes a first information domain, and the first information domain is 1 bit, then the first configuration information is Used.

Alternatively, if the first information domain is N bits, the first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal, where N is 1. A positive integer greater than .

In some embodiments, the sidelink feedback mode further includes:

A mode in which only one sidelink feedback channel can be transmitted simultaneously by the first terminal.

Alternatively, a mode in which more than one sidelink feedback channel can be transmitted simultaneously by the first terminal.

In some embodiments, the first terminal device further comprises a first transmission unit 302 .

The first sending unit 302 is configured to send the first configuration information to the third terminal.

In some embodiments the first terminal device 300 further comprises a second transmission unit 303 .

If the number of sidelink feedback channels that need to be transmitted is less than or equal to the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal device, the second transmitting unit 303 is configured to transmit all the sidelink feedback channels that need to be transmitted. configured to transmit a sidelink feedback channel;

In some embodiments, the processing unit 301 further transmits if the number of sidelink feedback channels that need to be transmitted is greater than the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. A sidelink feedback channel that should transmit M sidelink feedback channels with the highest priority among the sidelink feedback channels that need to be transmitted according to the priority of data corresponding to the required sidelink feedback channels. It is configured to determine as

M is equal to the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal.

In some aspects, the processing unit 301 is further configured to determine the power to transmit the sidelink feedback channels to transmit if the number of sidelink feedback channels to transmit is two or more. .

In some embodiments, the processing unit 301 is further configured to evenly allocate the transmission power of the sidelink feedback channels to be transmitted according to the maximum transmission power of the first terminal.

In some embodiments, the processing unit 301 is further configured to determine the power of the sidelink feedback channel to transmit according to the priority of the data corresponding to the sidelink feedback channel to transmit. .

In some embodiments, the processing unit 301 further controls the sidelink feedback channel corresponding to low priority data if the sum of the transmit powers of the sidelink feedback channels to be transmitted is greater than the maximum transmit power of the first terminal. It is configured to reduce the transmission power of the feedback channel.

Alternatively, the processing unit 301 may allocate no transmit power to sidelink feedback channels corresponding to low priority sidelink data.

An electronic device is further provided in an embodiment of the present disclosure to enable implementation of the aforementioned sidelink feedback method. FIG. 10 shows a schematic diagram of a structure forming an electronic device 400 , which includes a transmitting unit 401 .

The sending unit 401 is configured to send the first configuration information to the first terminal. The first configuration information is used to determine the sidelink feedback mode, or the first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal. Used.

In some embodiments, the first configuration information is transmitted in at least one of broadcast messages, RRC signaling and DCI. In this case, the electronic device is a network device.

In some embodiments, the first configuration information is transmitted on at least any one of PSBCH, PSCCH, PSSCH and sidelink RRC signaling. In this case, the electronic device is the fourth terminal device.

In some embodiments, if the first configuration information includes a first information domain, and the first information domain is 1 bit, then the first configuration information is Used. Alternatively, if the first information domain is N bits, the first configuration information is used to determine the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal, where N is 1. A positive integer greater than .

In some embodiments, the sidelink feedback mode is a mode in which only one sidelink feedback channel can be transmitted simultaneously by the first terminal, or two or more sidelink feedback channels can be transmitted by the first terminal. Includes modes in which feedback channels can be sent simultaneously.

Embodiments of the present disclosure further provide a first terminal device including a processor and a memory storing a computer program executable on the processor. The processor, when executing the computer program, is configured to perform the steps of the sidelink feedback method performed by the first terminal device.

Embodiments of the present disclosure further provide an electronic device including a processor and memory storing a computer program executable on the processor. The processor, when executing the computer program, is configured to perform the steps of the sidelink feedback method performed by the electronic device.

FIG. 11 is a schematic diagram of a hardware structure forming an apparatus (first terminal or electronic device) according to one embodiment of the present disclosure. Device 700 includes at least one processor 701 , memory 702 and at least one network interface 704 . The various components of device 700 are coupled together via bus system 705 . It should be appreciated that bus system 705 is used to implement connections and communications between these components. In addition to the data bus, bus system 705 also includes a power bus, a control bus and a status signal bus. However, the various buses are labeled as bus system 705 in FIG. 11 for clarity of explanation.

It should be appreciated that memory 702 may be volatile or nonvolatile memory, and may include both volatile and nonvolatile memory. Non-volatile memory includes ROM, programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, compact disc, or compact disc read-only memory (CD-ROM). The magnetic surface memory may be magnetic disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. Through exemplary but non-limiting description, many forms of RAM, e.g., static random access memory (SRAM), synchronous static random access memory (SSRAM) , dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (SDRAM) memory (DDRSDRAM)), enhanced synchronous dynamic random access memory (ESDRAM)), synchronous link dynamic random access memory (SLDRAM)), or direct Rambus random access memory ( A direct rambus random access memory (DRRAM) is available. The memory 702 described in embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.

Memory 702 in embodiments of the present disclosure is used to store various types of data to support operation of device 700 . Examples of these data include any computer programs used to run on device 700, such as application programs 7022. FIG. Programs for implementing methods of embodiments of the present disclosure may be included in application programs 7022 .

The methods disclosed in the foregoing embodiments of the present disclosure may be applied to processor 701 and may be performed by processor 701 . Processor 701 may be an integrated circuit chip with signal processing functionality. In the process of implementation, the steps of the aforementioned methods may be completed by instructions in the form of hardware integrated logic circuits in processor 701 or software. The processor 701 described above may be a general-purpose processor, a digital signal processor (DSP), or other components such as programmable logic devices, discrete gates, transistor logic devices, discrete hardware components, and the like. Processor 701 can implement or execute various methods, steps and logic block diagrams disclosed in embodiments of the present disclosure. A general-purpose processor may be a microprocessor, any conventional processor, or the like. The steps of the methods disclosed in the embodiments of the present disclosure may be directly implemented to be executed and completed by a hardware decode processor, or may be executed by a combination of hardware and software modules within the decode processor. may be completed. The software modules may be located on a storage medium, which is located in memory 702 . Processor 701 reads the information in memory 702 and in combination with its hardware completes the steps of the method described above.

In an exemplary embodiment, apparatus 700 includes one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs). , FPGA, general-purpose processor, controller, MCU, MPU, or other electronic component configured to perform the methods described above.

Embodiments of the present disclosure further provide a storage medium configured to store the computer program.

Optionally, the storage medium may be applied to the first terminal device in the embodiment of the present disclosure, and the computer program may be stored in the computer for each method applied to the first terminal device of the embodiment of the present disclosure. to execute the corresponding process. For the sake of brevity, no repetitive description is given here.

Optionally, the storage medium may be applied to the electronic device in the embodiments of the present disclosure, and the computer program causes the computer to execute corresponding processes in each method applied to the electronic device in the embodiments of the present disclosure. Let For the sake of brevity, they are not repeated here.

An embodiment of the present disclosure is a chip that includes a processor, the processor calling and executing a computer program from a memory to provide a device installed with the chip with a first There is further provided a chip configured to implement a sidelink feedback method applied to a terminal device.

An embodiment of the present disclosure is a chip that includes a processor that recalls and executes a computer program from memory to provide a sidelink feedback method applied to an electronic device to a device to which the chip is attached. A chip configured to perform

An embodiment of the present disclosure further provides a computer program product comprising computer program instructions, the computer program instructions enabling a computer to perform the sidelink feedback method applied to the first terminal device.

Embodiments of the present disclosure further provide a computer program product comprising computer program instructions, the computer program instructions enabling a computer to implement the sidelink feedback method applied to the electronic device.

Embodiments of the present disclosure further provide a computer program, the computer program enabling the computer to execute the sidelink feedback method applied to the first terminal device.

Embodiments of the present disclosure further provide a computer program, the computer program enabling the computer to implement the sidelink feedback method applied to the electronic device.

The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each process and/or block of each flowchart and/or block diagram, and combinations of processes and/or blocks in the flowchart and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a general purpose computer processor, special purpose computer, embedded processor or other programmable data processing apparatus to produce a machine. Thus, instructions executed by a processor of a computer or other programmable data processing device may be used to perform the functions specified in one or more processes of the flowchart illustrations and/or one or more blocks of the block diagrams. Create a device.

These computer program instructions may also be stored in computer readable memory capable of guiding a computer or other programmable data processing apparatus to operate in a particular manner. In this manner, the instructions stored in the computer readable memory produce an article containing the instruction device. The command device implements the functions specified in one or more processes of the flowcharts and/or one or more blocks of the block diagrams.

These computer program instructions can be loaded onto a computer or other programmable data processing device such that the series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process. Accordingly, the instructions executed by the computer or other programmable device provide the steps for performing the functions specified in one or more of the processes in the flowcharts and/or one or more blocks in the block diagrams.

It should be understood that the terms "system" and "network" as used in this disclosure are always used interchangeably herein. The term "and/or" in this disclosure is merely for describing the relationship of related subjects and indicates that there are three possible relationships. For example, A and/or B can mean simply A is present, A and B are simultaneously present, or simply B is present. Moreover, the character "/" in this disclosure generally indicates that the related objects before and after have an "or" relationship.

The above descriptions are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Modifications, equivalent replacements, and modifications made without departing from the spirit and principle of this disclosure shall fall within the protection scope of this disclosure.

The sidelink feedback method, device and storage medium of the present invention can be applied in the field of wireless communication technology.

S101 step
300 first terminal device
301 processing unit
302 first transmission unit
303 second transmission unit
400 electronic devices
401 transmission unit
700 device
701 processor
702 memory
7022 application program
704 network interface
705 bus system

Claims (15)

A sidelink feedback method comprising:
obtaining by a first terminal device first configuration information , said first configuration information for determining the maximum number of sidelink feedback channels that can be simultaneously transmitted by said first terminal device; a step used for
determining a maximum number of sidelink feedback channels that can be simultaneously transmitted by the first terminal based on the first configuration information;
A sidelink feedback method, comprising: Obtaining the first configuration information by the first terminal further comprises obtaining the first configuration information by the first terminal according to preconfigured information. 2. The method of claim 1, characterized by: 3. The method of claim 2, wherein said preconfigured information comprises capability information of said first terminal. The step of obtaining the first configuration information by the first terminal device further comprises the step of receiving the first configuration information transmitted from a network device by the first terminal device. A method according to claim 1. 4. The first configuration information is transmitted in at least one of a broadcast message, radio resource control (RRC) signaling and downlink control information (DCI). The method described in . Obtaining the first configuration information by the first terminal further comprises receiving, by the first terminal, the first configuration information transmitted from a second terminal. 2. The method of claim 1, characterized by: If said first configuration information comprises a first information domain and said first information domain is 1 bit, is said first configuration information used to determine a sidelink feedback mode? , or
If the first information domain is N bits and N is a positive integer greater than 1, then the first configuration information is the maximum number of sidelink feedback channels simultaneously transmittable by the first terminal device. A method according to any one of claims 1 to 6 , characterized in that it is used for determining numbers. If the number of sidelink feedback channels that need to be transmitted is less than or equal to the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal, then by the first terminal all A method according to any one of claims 1 to 7 , characterized in that it further comprises the step of transmitting the sidelink feedback channel of . determining M equal to the maximum number of sidelink feedback channels that can be simultaneously transmitted by the first terminal;
Prioritizing data corresponding to sidelink feedback channels that need to be transmitted if the number of sidelink feedback channels that need to be transmitted is greater than the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal device. determining, by the first terminal device, to transmit M sidelink feedback channels with the highest priority among the sidelink feedback channels that need to be transmitted, according to the degree of M being equal to the maximum number of sidelink feedback channels that can be transmitted simultaneously by the first terminal ;
A method according to any one of claims 1 to 7 , characterized in that it further comprises: If the number of sidelink feedback channels that need to be transmitted is two or more, further comprising the step of determining, by the first terminal device, the power for transmitting the sidelink feedback channels that need to be transmitted. A method according to any one of claims 1 to 9 , characterized in that It further comprises the step of evenly allocating power for transmitting the sidelink feedback channel that needs to be transmitted by the first terminal according to the maximum transmission power of the first terminal. , the method according to any one of claims 1 to 10 . Further comprising determining, by the first terminal device, the power of the sidelink feedback channel that needs to be transmitted according to the priority of the data corresponding to the sidelink feedback channel that needs to be transmitted. A method according to any one of claims 1 to 10 , characterized in that. The step of determining, by the first terminal device, the power of the sidelink feedback channel that needs to be transmitted according to the priority of sidelink data corresponding to the sidelink feedback channel that needs to be transmitted ,
If the sum of the transmission powers of the sidelink feedback channels that need to be transmitted is greater than the maximum transmission power of the first terminal device , the first terminal device supports the sidelink data with the low priority. 13. The method of claim 12 , further comprising allocating no transmit power to the sidelink feedback channel that A first terminal device comprising a processing unit ,
The processing unit is
obtaining first configuration information used to determine the maximum number of sidelink feedback channels simultaneously transmittable by the first terminal;
A first terminal device configured to determine, based on said first configuration information, a maximum number of sidelink feedback channels that can be simultaneously transmitted by said first terminal device. A first terminal device, characterized in that, when executing a computer program, it is arranged to carry out the sidelink feedback method according to any one of claims 1 to 13 .