Channel transmission method and device, terminal and storage medium

Abstract

The invention discloses a channel transmission method and device, a terminal and a storage medium, and belongs to the technical field of communication, and the channel transmission method comprises the steps that a first terminal determines a target sending beam, the target sending beam comprises sending beams at M feedback opportunities corresponding to a first channel received by the first terminal, and the sending beams at M feedback opportunities correspond to the first channel received by the first terminal; m is an integer greater than zero; the first terminal sends a second channel at the M feedback opportunities through the target sending beam, and the second channel is a feedback channel corresponding to the first channel.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a channel transmission method, device, terminal and storage medium. Background Art

[0002] like Figure 1 As shown in the figure, the Long Term Evolution (LTE) system supports sidelink transmission, that is, data is transmitted directly between terminals (User Equipment, UE) at the physical layer. LTE sidelink is based on broadcast communication. Although it can be used to support basic safety communications of vehicle to everything (V2X), it is not suitable for other more advanced V2X services. The 5G New Radio (NR) system will support more advanced sidelink transmission designs, such as unicast, multicast or groupcast, so as to support a more comprehensive range of business types.

[0003] However, for 5G sidelink transmission, in the millimeter wave frequency band (FR2), the terminal's beam is not omnidirectional. If the beam where the physical sidelink feedback channel (PSFCH) with the highest priority is selected for transmission and reception according to the existing mechanism, the terminal can only use one beam when receiving or sending at least one of PSFCH, so the PSFCH reception or transmission in other beam directions must be discarded, reducing the transmission efficiency of PSFCH. Summary of the invention

[0004] The embodiments of the present application provide a channel transmission method, device, terminal and storage medium, which can solve the problem of low transmission efficiency of the feedback channel in the FR2 frequency band in the prior art.

[0005] In a first aspect, a channel transmission method is provided, the method comprising:

[0006] The first terminal determines a target transmit beam, wherein the target transmit beam includes transmit beams at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero;

[0007] The first terminal sends a second channel at the M feedback opportunities through the target transmission beam, wherein the second channel is a feedback channel corresponding to the first channel.

[0008] In a second aspect, a channel transmission method is provided, the method comprising:

[0009] The second terminal determines a target receiving beam, wherein the target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than zero;

[0010] The second terminal receives a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

[0011] In a third aspect, a channel transmission device is provided, which is applied to a first terminal, and the device includes:

[0012] A first beam determination module, configured to determine a target transmit beam, wherein the target transmit beam includes transmit beams at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero;

[0013] The first sending module is used to send a second channel on the M feedback occasions through the target sending beam, wherein the second channel is a feedback channel corresponding to the first channel.

[0014] In a fourth aspect, a channel transmission device is provided, which is applied to a second terminal, and the device includes:

[0015] A second beam determination module, configured to determine a target receiving beam, wherein the target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than zero;

[0016] The first receiving module is configured to receive a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

[0017] In a fifth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0018] In a sixth aspect, a terminal is provided, including a processor and a communication interface;

[0019] When the terminal serves as the first terminal, the processor is used to determine a target transmission beam, wherein the target transmission beam includes transmission beams at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero;

[0020] The communication interface is used to send a beam through the target and send a second channel on the M feedback occasions, wherein the second channel is a feedback channel corresponding to the first channel.

[0021] When the terminal serves as the second terminal, the processor is used to determine a target receiving beam, wherein the target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than zero;

[0022] The communication interface is used to receive a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

[0023] In a seventh aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect or the second aspect are implemented.

[0024] In an eighth aspect, a channel transmission system is provided, comprising: a first terminal and a second terminal, wherein the first terminal can be used to execute the steps of the method described in the first aspect, and the second terminal can be used to execute the steps of the method described in the second aspect.

[0025] In the ninth aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the steps of the method described in the first aspect or the second aspect.

[0026] In a tenth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect or the second aspect.

[0027] In an embodiment of the present application, the first terminal is able to determine a target transmit beam, thereby sending a second channel at M feedback opportunities through the target transmit beam, wherein the target transmit beam includes transmit beams at M feedback opportunities corresponding to the first channel received by the first terminal, the second channel is the feedback channel of the first channel, and M is an integer greater than zero.

[0028] It can be seen that in an embodiment of the present application, the first channel can correspond to at least one feedback opportunity, and the feedback channel of the first channel (i.e., the second channel) can be sent on at least one feedback opportunity. This lays the foundation for feedback to be sent using corresponding transmission beams on multiple feedback opportunities, thereby improving the transmission efficiency of the feedback channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of sidelink transmission;

[0030] Figure 2 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0031] Figure 3 It is a transmission diagram of a synchronization signal (or physical broadcast channel signal block or synchronization signal block) (SynchronizationSignal and PBCH block, SSB);

[0032] Figure 4 is a flow chart of a channel transmission method in an embodiment of the present application;

[0033] Figure 5 is a flow chart of another channel transmission method in an embodiment of the present application;

[0034] Figure 6 It is one of the schematic diagrams of the specific implementation method of the present application;

[0035] Figure 7 This is the second schematic diagram of a specific implementation method of the present application;

[0036] Figure 8 is a structural block diagram of a channel transmission device in an embodiment of the present application;

[0037] Fig. 9 is a structural block diagram of another channel transmission device in an embodiment of the present application;

[0038] Fig.10 is a structural block diagram of a communication device in an embodiment of the present application;

[0039] Fig.11 It is a structural block diagram of a terminal in an embodiment of the present application. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0041] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0042] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0043] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 thGeneration, 6G) communication system.

[0044] Figure 2 A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0045] The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AS) or a wireless fidelity (WiFi) node, etc. Among them, the base station may be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a Relay Base Station (RBS), a Serving Base Station (SBS), a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a Home Node B (HNB), a Home Evolved Node B (home evolved Node B), a Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiments of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0046] In order to facilitate understanding of the channel transmission method in the embodiment of the present application, the following contents are now introduced:

[0047] 1. About beam:

[0048] Due to the scarcity of low-frequency resources, 5G NR uses high-frequency bands such as millimeter waves. Since the propagation loss of high-frequency bands is greater than that of low-frequency, its coverage distance is worse than that of LTE. To solve this problem, one solution is that 5G uses multi-antenna beamforming to enhance the signal and thus enhance coverage. At present, beamforming is a signal processing technology that uses a sensor array to send and receive signals in a direction. Beamforming technology adjusts the parameters of the basic units of the phase array so that signals at certain angles obtain constructive interference and signals at other angles obtain destructive interference, so that the antenna beam points in a specific direction. The establishment of the downlink beam is generally determined by the SSB and the Channel State Information Reference Signal (CSI-RS) reference signal.

[0049] Take SSB as an example:

[0050] Since the beam is narrow, the same SSB is sent to different directions in the form of beams in NR in a time division duplex (TDD) manner so that UEs in all directions can receive the SSB. Figure 3 As shown, within the range of 5ms, the base station sends multiple SSBs (corresponding to different SSB indexes) to cover different directions. The UE receives multiple SSBs with different signal strengths and selects the strongest one as its own SSB beam.

[0051] 2. About Transmission Configuration Indicator (TCI)

[0052] At the Uu port, TCI can be indicated in the downlink control information (DCI), and TCI will be associated with a reference signal. The physical downlink shared channel (PDSCH) / physical uplink shared channel (PUSCH) scheduled by DCI and the reference signal corresponding to the TCI are quasi co-located (QCL). In other words, the beam of the reference signal is the same as the beam of the PDSCH, so through TCI, the UE can know which beam to use to receive data. The TCI used to control the beam of PDSCH is called DL TCI, and the TCI used to control the beam of PUSCH is called UL TCI. It also allows PUSCH / PDSCH to share the same set of TCI, which is simply called TCI at this time.

[0053] 3. Terminal Reception and Transmission Restrictions

[0054] When a terminal wants to send or receive Y PSFCHs, but the terminal is capable of sending or receiving only Z PSFCHs, the sending or receiving order is determined according to the priority, that is, the PSFCH with the highest priority is sent or received first, where Z is less than Y, and both Z and Y are positive integers.

[0055] 4. Beam Reciprocity

[0056] When a beam is selected for downlink transmission, it can also be used for uplink transmission, that is, uplink and downlink transmission occur on the same beam.

[0057] The channel transmission method provided in the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0058] In a first aspect, an embodiment of the present application provides a channel transmission method, such as Figure 4 As shown, the channel transmission method may include the following steps 401 to 402:

[0059] Step 401: The first terminal determines a target transmission beam.

[0060] The target transmission beam includes transmission beams at M feedback opportunities corresponding to the first channel received by the first terminal, where M is an integer greater than 0. That is, the first terminal receives the first channel, and thus transmits a feedback channel (i.e., a second channel) of the first channel at M feedback opportunities corresponding to the first channel.

[0061] It should be noted that, in the embodiment of the present application, one first channel corresponds to M feedback opportunities, that is, the first terminal can send a second channel corresponding to the first channel on M feedback opportunities, which can also be understood as the second channel of a first channel corresponding to M feedback opportunities. Therefore, when the first terminal receives multiple first channels, each first channel corresponds to M feedback opportunities, wherein the M feedback opportunities corresponding to different first channels may overlap. In this way, one feedback opportunity may correspond to multiple second channels corresponding to the first channels.

[0062] For example, the first channel received by the first terminal includes the first channel sent by terminal A and the first channel sent by terminal B. The first terminal can respectively determine the transmission beams at M feedback opportunities corresponding to the first channel sent by terminal A and the transmission beams at M feedback opportunities corresponding to the first channel sent by terminal B, so as to send the corresponding second channel through the corresponding transmission beams at these feedback opportunities.

[0063] Optionally, the first channel is a physical sidelink control channel (physical sidelink control channel, PSCCH) or a physical sidelink shared channel (physical sidelink shared channel, PSSCH), and the second channel is PSFCH. In this way, after the first terminal receives at least one PSSCH or PSCCH, it can determine the transmission beams on the M feedback opportunities corresponding to the at least one PSSCH or PSCCH, so that the corresponding PSFCH can be sent through the corresponding transmission beams on these feedback opportunities.

[0064] It can be understood that the channel mentioned in the embodiments of the present application may refer to the transmission content carried in the channel, or the channel itself.

[0065] Step 402: The first terminal sends a second channel at the M feedback opportunities through the target transmission beam.

[0066] The second channel is a feedback channel corresponding to the first channel.

[0067] Optionally, the target transmit beam satisfies at least one of the following:

[0068] The transmission beams of the second channel on at least some of the M feedback opportunities are in a first relationship;

[0069] There is a second relationship between the transmission beams of the second channel on at least some of the M feedback opportunities.

[0070] Optionally, the first relationship includes at least one of the following: identical beams, quasi co-location, satisfying a quasi co-location relationship, identical beam indexes, identical beam identifiers, consistent transmission configuration indications, reciprocity, coverage, and being covered.

[0071] Optionally, the second relationship includes at least one of different beams, quasi-co-location but opposite or different spatial parameters, different beam indexes, different beam identifiers, different transmission configuration indications, and reciprocity.

[0072] For example, when the transmission beams of at least some of the M feedback opportunities are the same, or quasi-co-located, or have the same beam index, or have the same beam identifier, the same transmission beam is used at different feedback opportunities in this part of the feedback opportunities. In this way, it is possible to use the same transmission beam to send the second channel at multiple feedback opportunities, thereby increasing the number of times the second channel is sent and improving the probability of the second channel being received. In this way, the transmission efficiency of the second channel can be improved.

[0073] Alternatively, for example, when the transmission beams of at least some of the M feedback opportunities are different, or the beam indexes are different, or the beam identifiers are different, different transmission beams are used at different feedback opportunities in this part of the feedback opportunities. In this way, it is possible to use different transmission beams to send the second channel at multiple feedback opportunities, thereby expanding the transmission direction of the second channel, thereby increasing the probability of the second channel being received, and thus, the transmission efficiency of the second channel can be improved.

[0074] It can be seen from the above steps 401 to 402 that in an embodiment of the present application, the first terminal is able to determine the target transmit beam, thereby sending the second channel at M feedback opportunities through the target transmit beam, wherein the target transmit beam includes the transmit beams at M feedback opportunities corresponding to the first channel received by the first terminal, the second channel is the feedback channel of the first channel, and M is an integer greater than zero.

[0075] It can be seen that in an embodiment of the present application, the first channel can correspond to at least one feedback opportunity, and the feedback channel of the first channel (i.e., the second channel) can be sent on at least one feedback opportunity. This lays the foundation for feedback to be sent using corresponding transmission beams on multiple feedback opportunities, thereby improving the transmission efficiency of the feedback channel.

[0076] Optionally, the same second channel has different sending priorities at different feedback occasions.

[0077] For example, the feedback timing associated with a second channel includes feedback timings D1 to D3, and the transmission priority of the second channel on D1, the transmission priority of the second channel on D2, and the transmission priority of the second channel on D3 are different.

[0078] Here, it should be noted that the sending priority of the same second channel at different feedback times is different. It may be only the behavior of the terminal side that sends the second channel, or it may be only the behavior of the terminal side that receives the second channel. It may also be the common behavior of both the terminal sending the second channel and the terminal receiving the second channel, or it may be the common behavior defined by the system.

[0079] Optionally, the transmission priority of the second channel on the M feedback occasions satisfies at least one of the following items A-1 to A-5:

[0080] Item A-1: ​​the transmission priority of the second channel at the first feedback opportunity is the same as the priority of the corresponding first channel, wherein the first feedback opportunity includes at least part of the M feedback opportunities;

[0081] Item A-2: The transmission priority of the same second channel at different feedback opportunities within the same first set is the same, wherein, among at least some of the M feedback opportunities except the first feedback opportunity, every n1 adjacent feedback opportunities in the time domain belong to one first set;

[0082] Item A-3: the transmission priority of the same second channel at the feedback opportunity in the (i+1)th first set is higher than the transmission priority at the feedback opportunity in the (i)th first set by k1 levels;

[0083] Item A-4: the sending priority of the same second channel at the q+1th feedback opportunity among the M feedback opportunities is k2 levels higher than the sending priority at the qth feedback opportunity;

[0084] Item A-5: The highest transmission priority of the second channel at the M feedback opportunities may be the highest transmission priority or the first threshold, and the highest transmission priority and the first threshold are configured values; for example, the highest transmission priority and the first threshold may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the second terminal) that sends the first channel;

[0085] Among them, n1, k1, k2 are all integers greater than zero, i is an integer from 1 to m1, m1 represents the number of the first set, and q is an integer from 1 to M.

[0086] For item A-1, the above-mentioned first feedback opportunity may be the s1th feedback opportunity among the M feedback opportunities, and s1 may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the second terminal) that sends the first channel. For example, if s1=1, the sending priority of a second channel at the first feedback opportunity among the M feedback opportunities associated with a second channel is the same as the priority of the first channel corresponding to the second channel. It should be noted that, when no priority adjustment scheme is involved, the sending priority of the first channel is the receiving priority, or in other words, the first channel has only one priority, and therefore, the sending priority and receiving priority of the first channel may be collectively referred to as the priority of the first channel.

[0087] For item A-2, at least part of the feedback opportunities except the first feedback opportunity among the M feedback opportunities, every n1 adjacent feedback opportunities in the time domain are divided into a first set, wherein if the number of the last remaining feedback opportunities is less than n1, the last remaining feedback opportunities constitute the last first set, so that the M feedback opportunities are divided into multiple first sets. For the multiple first sets, the sending priority of the same second channel at different feedback opportunities in the same first set is the same.

[0088] For item A-3, the above-mentioned i+1th first set and i-th first set may be two adjacent first sets in the first sorting or the second sorting. Here, the first sorting is to sort the multiple first sets in order from front to back in the time domain, and the second sorting is to sort the first sets in order from back to front in the time domain, that is, the i+1th first set may be a set that is located before or after the i-th first set in the time domain.

[0089] It can be seen from item A-3 that, in the order of the M feedback opportunities from front to back in the time domain, for the same second channel, the transmission priority at each n1 feedback opportunities in the back is raised or lowered by k1 levels compared to the transmission priority at the first n1 feedback opportunities. For example, the M feedback opportunities are divided into multiple first sets, and in the order of the M feedback opportunities from front to back in the time domain, the transmission priority of the same second channel at feedback opportunities in different first sets gradually increases, which can increase the probability that the first terminal uses the corresponding beam to send the second channel, thereby increasing the probability that the second channel sent by the first terminal is successfully received.

[0090] The above k1 may be predefined by a protocol, or preconfigured by a network side, or configured by a network side, or indicated by a terminal (ie, a second terminal) that sends the first channel.

[0091] For item A-4, the above-mentioned q+1th feedback opportunity and qth feedback opportunity may be two adjacent feedback opportunities in the third sorting or the fourth sorting. Here, the third sorting is to sort the M feedback opportunities in the order from front to back in the time domain, and the fourth sorting is to sort the M feedback opportunities in the order from back to front in the time domain, that is, the q+1th feedback opportunity may be a feedback opportunity before or after the qth feedback opportunity in the time domain.

[0092] It can be seen from item A-4 that, in the order from front to back in the time domain, the transmission priority of the second channel at the associated M feedback opportunities is raised or lowered by k2 levels compared to the transmission priority of the second channel at the previous feedback opportunity. For example, the transmission priority of the second channel at the M feedback opportunities is gradually increased, which can increase the probability that the first terminal uses the corresponding beam to transmit the second channel, thereby increasing the probability that the second channel transmitted by the first terminal is successfully received. Furthermore, this transmission priority adjustment behavior stops after the second channel is successfully received.

[0093] The above k2 may be predefined by a protocol, or preconfigured by a network side, or configured by a network side, or indicated by a terminal (ie, a second terminal) that sends the first channel.

[0094] For item A-5, no matter which item or items of A-1 to A-4 are used for the transmission priority of the second channel at the M feedback occasions, the transmission priority of the second channel at the M feedback occasions can be raised to the highest transmission priority or reach the first threshold when adjusting. For example, when the original transmission priority of the second channel is 6, its priority can be adjusted to the highest priority 1 at the associated feedback occasion, or the first threshold configured on the network side. At the same time, whether it can be adjusted to the highest priority may be related to the original priority of the second channel. For example, when the priority is greater than a certain threshold, it is allowed to be adjusted to the highest priority at most. If not, it is allowed to be adjusted to the first threshold at most.

[0095] Optionally, the transmission beams at feedback opportunities within the same second set are different, and the transmission priorities of the same second channel at different feedback opportunities within the same second set are different, wherein at least some of the M feedback opportunities belong to a second set for every n2 adjacent feedback opportunities in the time domain, and n2 is an integer greater than zero.

[0096] For example, every n2 adjacent feedback opportunities of the M feedback opportunities in the time domain can be divided into a second set, wherein if the number of the last remaining feedback opportunities is less than n2, the last remaining feedback opportunities constitute the last second set, and thus the M feedback opportunities are divided into multiple second sets. For the feedback opportunities in the same second set, the transmission beams can be different, and the transmission priorities of the same second channel can also be different.

[0097] That is, the transmission beams of each of the n2 adjacent feedback opportunities among the M feedback opportunities in the time domain are different, and the transmission priorities of the second channel are different.

[0098] Optionally, the transmission beams at the M feedback occasions satisfy at least one of the following B-1 to B-5:

[0099] Item B-1: The transmit beam on the second feedback opportunity is determined according to the transmit beam of the first target channel, wherein the first target channel includes a first channel corresponding to a second channel determined to be transmitted, and the second feedback opportunity includes at least part of the M feedback opportunities;

[0100] Item B-2: When the third feedback opportunity satisfies at least one of the first condition and the second condition, the transmit beam at the third feedback opportunity is determined according to the second target channel, wherein the third feedback opportunity includes at least part of the M feedback opportunities, the first condition is that the second target channel is sent for the first time at the third feedback opportunity, the second condition is that the third target channel has been sent at least N feedback opportunities before the third feedback opportunity, N is an integer greater than zero, the second target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity, and the third target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity except the second target channel;

[0101] Item B-3: The transmission configuration indications of the transmit beams and the target reference signals at different feedback opportunities in the fourth feedback opportunity are associated according to the index order of the target reference signals, wherein the fourth feedback opportunity includes at least part of the M feedback opportunities;

[0102] Item B-4: a transmission beam at a fifth feedback opportunity has a first relationship with at least some of the beams in a target set, wherein the target set includes a candidate beam set determined by the first terminal and a second terminal or a subset of the candidate beam set, wherein the second terminal includes a terminal that transmits a first channel, and the fifth feedback opportunity includes at least some of the M feedback opportunities;

[0103] Item B-5: The beam direction or beam switching order of the transmitted beam at the sixth feedback opportunity is indicated by the second terminal, wherein the sixth feedback opportunity includes at least part of the M feedback opportunities.

[0104] For item B-1, it can be determined which second channel or channels need to be sent at the second feedback opportunity based on the sending priorities of the multiple second channels that can be sent at the second feedback opportunity; it can also be determined which second channel or channels need to be sent at the second feedback opportunity based on the priorities of the first channels corresponding to the multiple second channels that can be sent at the second feedback opportunity.

[0105] The second feedback opportunity may be the s2th feedback opportunity among the M feedback opportunities, and s2 may be predefined by the protocol, preconfigured by the network side, configured by the network side, or indicated by the terminal (i.e., the second terminal) that sends the first channel. For example, if s2=1, the transmission beam at the first feedback opportunity among the M feedback opportunities is determined according to the first target channel.

[0106] In addition, the transmission beam at the second feedback opportunity is determined based on the transmission beam of the first target channel, that is: the transmission beam at the second feedback opportunity is used to transmit the second channel corresponding to the first target channel, or the transmission beam at the second feedback opportunity and the transmission beam of the first target channel are in the first relationship, or the transmission beam at the second feedback opportunity and the receiving beam of the first target channel are in the first relationship, or the transmission beam at the second feedback opportunity is inferred based on the opposite data transmission of the transmission beam of the first target channel. Here, when the transmission beam at the second feedback opportunity and the transmission beam of the first target channel are in the first relationship, the transmission beam of the first target channel should still be used at the second feedback opportunity to maximize the reception probability.

[0107] In addition, optionally, when the priority of the first target channel is higher than the fifth threshold, the transmission beam at the second feedback opportunity and the transmission beam of the first target channel are in a first relationship. That is, when the priority is higher, the corresponding transmission beam inferred based on the transmission beam of the first target channel and beam reciprocity (beam correspondence) is tended to be used, thereby maximizing the reception probability of the second channel.

[0108] For item B-2, for example, the third feedback opportunity is the Lth feedback opportunity among M feedback opportunities, and the second channels C1 and C2 need to be sent at the Lth feedback opportunity, wherein C1 has been sent N times at the feedback opportunities before the Lth feedback opportunity, and C2 is sent for the first time at the Lth feedback opportunity, then the transmission beam at the Lth feedback opportunity is determined based on C2.

[0109] It should be noted that the transmission beam at the third feedback opportunity is determined based on the second target channel, that is, the transmission beam at the third feedback opportunity is at least used to send the second target channel, and if the third target channel corresponds to other transmission beams, it will no longer be sent.

[0110] For item B-3, for example, the fourth feedback opportunity includes feedback opportunities D4 and D5. In the time domain, D5 is located after D4. The transmit beam on D4 is associated with the transmission configuration indication V1 of the target reference signal. The transmit beam on D5 is associated with the transmission configuration indication V2 of the target reference signal. Then, the index of the target reference signal corresponding to V2 is located after the index of the target signal corresponding to V1.

[0111] It can be seen from this that the order of the indexes of the target signals corresponding to the TCI associated with the transmit beam at the fourth feedback opportunity conforms to the index order of the target signals.

[0112] In addition, the index order of the target reference signal may specifically be a beam scanning order or an order of geographical directions.

[0113] That is, the transmission beam at the fourth feedback opportunity can be determined according to the beam scanning order, so that if the beam scanning range can be the receiving range of the second channel, the direction of the transmission beam of the second channel can be avoided from exceeding the range. Here, the beam scanning order or the number of beams scanned by the beam can be indicated by the terminal (i.e., the second terminal) that sends the first channel, or predefined by the protocol, or preconfigured by the network, or configured by the network. For example, starting from the receiving direction of the first channel, starting from the left, or starting from the right, etc.

[0114] Alternatively, the transmission beam at the fourth feedback opportunity may be determined according to the geographical direction, for example, first to the north, then to the east, etc. In this case, the beam width of the transmission beam at the third feedback opportunity is related to the number of feedback opportunities included in the fourth feedback opportunity, for example, to ensure that the transmission beams at all feedback opportunities in the fourth feedback opportunity cover all directions, or may cover the communication direction between the first terminal and the terminal (i.e., the second terminal) that sends the first channel.

[0115] The fourth feedback opportunity may be the feedback opportunity excluding the s3th feedback opportunity among the M feedback opportunities, and s3 may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the second terminal) sending the first channel. For example, if s3=1, the fourth feedback opportunity may include at least part of the feedback opportunities among the M feedback opportunities excluding the first feedback opportunity.

[0116] For item B-4, the fifth feedback opportunity may be the feedback opportunity excluding the s4th feedback opportunity among the M feedback opportunities, and s4 may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the second terminal) sending the first channel. For example, if s4=1, the fifth feedback opportunity may include at least part of the feedback opportunities among the M feedback opportunities excluding the first feedback opportunity.

[0117] It should be noted that the above-mentioned second terminal determines the terminal with which the first terminal needs to communicate, that is, if there are multiple terminals sending the first channel, the first terminal can first determine which terminal sending the first channel needs to communicate, and then select at least part of the beams from the current or latest determined candidate beam set or subset of the candidate beam set between the first terminal and the terminal that needs to communicate, so that the beam that has a first relationship with the selected beams can be used as the transmission beam at the fifth feedback opportunity.

[0118] Optionally, the transmit beam at the fifth feedback opportunity has a first relationship with a target beam in the target set, and the target beam includes a sequence starting from the most edge beam in the target set until the number of beams is the same as the number of transmit beams at the fifth feedback opportunity. The most edge here refers to the smallest index, or the largest index, or the smallest reference signal received power (RSRP) measurement result, or the largest RSRP measurement result.

[0119] Optionally, the transmitted beam at the fifth feedback opportunity has a first relationship with a target number of beams in the target set, and the target number can be indicated by the terminal sending the first channel (i.e., the second terminal), or predefined by the protocol, or preconfigured by the network, or configured by the network.

[0120] For item B-5, the sixth feedback opportunity may be the feedback opportunity excluding the s5th feedback opportunity among the M feedback opportunities, and s5 may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the second terminal) sending the first channel. For example, if s5=1, the sixth feedback opportunity may include at least part of the feedback opportunities among the M feedback opportunities excluding the first feedback opportunity.

[0121] Among them, the indication information used to indicate the sending direction of the sending beam or the beam switching order at the sixth feedback opportunity can be carried in the sidelink control information (SCI), or the media access control control element (MAC CE), or the radio resource control (RRC) signaling.

[0122] Optionally, the number M of the M feedback opportunities and at least one of the target transmit beams are determined by at least one of the following items C-1 to C-5:

[0123] Item C-1: Protocol pre-defined;

[0124] Item C-2: Network side pre-configuration;

[0125] Item C-3: Network side configuration;

[0126] Item C-4: second terminal indication, wherein the second terminal includes a terminal sending the first channel;

[0127] Item C-5: The first terminal is determined.

[0128] From this, it can be seen that the number of M feedback opportunities corresponding to the first channel can be determined by at least one of the above items C-1 to C-5; the transmitting beams on the M feedback opportunities can also be determined by at least one of the above items C-1 to C-5.

[0129] Exemplarily, the number of feedback opportunities is predefined by the protocol to be one of {2, 3, 4}, and the network side configures it to 3 through Radio Resource Control (RRC) signaling.

[0130] Exemplarily, the transmission beam on at least some of the M feedback opportunities can be indicated by the terminal sending the first channel (i.e., the second terminal) sending a cooperation message (e.g., Inter-UE Coordination (IUC) message) to the first terminal.

[0131] In a second aspect, an embodiment of the present application provides a channel transmission method, which can be applied to a second terminal, such as Figure 5 As shown, the channel transmission method may include the following steps 501 to 502:

[0132] Step 501: The second terminal determines a target receiving beam.

[0133] The target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than 0. That is, the second terminal sends the first channel, thereby receiving a feedback channel (i.e., the second channel) of the first channel at the M feedback opportunities corresponding to the first channel.

[0134] Here, the first channel sent by the second terminal may be one or more. It should be noted that, in the embodiment of the present application, one first channel corresponds to at least one feedback opportunity, and the second terminal may receive at least one second channel in one feedback opportunity.

[0135] For example, the first channel sent by the second terminal includes the first channel sent to the terminal E1 and the first channel sent to the terminal E2, then the second terminal can respectively determine the receiving beam on at least one feedback opportunity corresponding to the first channel sent to the terminal E1, and the receiving beam on at least one feedback opportunity corresponding to the first channel sent to the terminal E2. At the same time, due to the limitation of the terminal's capabilities, only one receiving beam may be used to receive the second channel on one feedback opportunity, then the second terminal needs to determine a unique one from multiple receiving beams to receive the second channel on the associated feedback opportunity.

[0136] Optionally, if the first channel is PSCCH or PSSCH, the second channel is PSFCH. In this way, after the second terminal sends at least one PSSCH or PSCCH, it can determine the receiving beams on M feedback occasions corresponding to the at least one PSSCH or PSCCH, so that the corresponding PSFCH can be received through the corresponding receiving beams on these feedback occasions.

[0137] It should be noted that the channel mentioned in the embodiments of the present application may refer to the transmission content carried in the channel, or the channel itself. For example, the terminal sending the PSCCH channel may refer to the control information carried on the PSCCH sent by the terminal, and receiving the PSFCH channel may refer to the feedback information carried by the terminal receiving the PSFCH channel.

[0138] Step 502: The second terminal receives a second channel at the M feedback opportunities through the target receiving beam.

[0139] The second channel is a feedback channel of the first channel.

[0140] It can be known from the above steps 501 to 502 that in the embodiment of the present application, the second terminal can determine the target receiving beam, so as to receive the second channel at M feedback opportunities through the target receiving beam, wherein the target receiving beam includes the receiving beam at M feedback opportunities corresponding to the first channel sent by the second terminal, the second channel is the feedback channel of the first channel, and M is an integer greater than zero. It can be seen that in the embodiment of the present application, the first channel can correspond to at least one feedback opportunity, and the feedback channel of the first channel (i.e., the second channel) can be received at at least one feedback opportunity, thereby improving the receiving efficiency of the feedback channel.

[0141] Optionally, the second terminal in step 501 determines the target receiving beam, including:

[0142] The second terminal determines the receiving beams at the feedback opportunities corresponding to the multiple second channels according to the receiving priorities of the multiple second channels corresponding to the same feedback opportunity. Here, one feedback opportunity corresponds to multiple second channels, that is, the feedback opportunity can be used to receive multiple second channels.

[0143] For example, a second channel is associated with multiple feedback opportunities, and some of these feedback opportunities are also associated with other second channels. In this case, multiple second channels can be received at one feedback opportunity. It is possible to determine which second channel needs to be received based on the reception priority or other reception rules of the multiple second channels, and then determine the receiving beam at this feedback opportunity based on the second channel that needs to be received.

[0144] Optionally, the reception priority of the second channel on the M feedback occasions satisfies at least one of the following D-1 to D-2:

[0145] Item D-1: a reception priority of the second channel at a seventh feedback opportunity, which is the same as the priority of the corresponding first channel, wherein the seventh feedback opportunity includes at least part of the M feedback opportunities;

[0146] Item D-2: The reception priority of the second channel on at least part of the feedback opportunities in the eighth feedback opportunity is different from the priority of the corresponding first channel, wherein the eighth feedback opportunity includes at least part of the M feedback opportunities.

[0147] For item D-1, the seventh feedback opportunity may be the s6th feedback opportunity among the M feedback opportunities, and s6 may be predefined by the protocol, preconfigured by the network side, configured by the network side, or indicated by the terminal (i.e., the first terminal) that sends the second channel. For example, if s1=1, the reception priority of the second channel at the first feedback opportunity among the M feedback opportunities may be the same as the priority of the first channel corresponding to the second channel.

[0148] For item D-2, the seventh feedback opportunity may be the s7th feedback opportunity among the M feedback opportunities, and s7 may be predefined by the protocol, preconfigured by the network side, configured by the network side, or indicated by the terminal (i.e., the first terminal) that sends the second channel. For example, if s7=1, the reception priority of the second channel at the first feedback opportunity among the M feedback opportunities may be different from the priority of the first channel corresponding to the second channel.

[0149] Optionally, in a multicast (ie, groupcast) scenario, the receiving priority of the second channel on at least some of the feedback opportunities in the eighth feedback opportunity is different from the priority of the corresponding first channel.

[0150] Optionally, the method further comprises the following step E-1:

[0151] Step E-1: the second terminal adjusts the reception priority of the second channel at least in part of the feedback opportunities;

[0152] The above step 501 "the second terminal determines the target receiving beam" includes:

[0153] The second terminal determines the target receiving beam according to the adjusted receiving priority.

[0154] It can be seen from this that the second terminal can also adjust the receiving priority of the second channel at the feedback opportunity, and then determine the receiving beam at the feedback opportunity based on the adjusted receiving priority.

[0155] Optionally, the above step E-1 "the second terminal adjusts the receiving priority of the second channel at least in part of the feedback opportunities" includes at least one of the following items F-1 to F2:

[0156] Item F-1: in the case where the first object exists, the second terminal increases the reception priority of the first object at the tenth feedback opportunity, wherein the first object includes a second channel that is not received at the ninth feedback opportunity, the ninth feedback opportunity includes at least part of the M feedback opportunities, and the tenth feedback opportunity includes the feedback opportunities of the M feedback opportunities except the ninth feedback opportunity;

[0157] Item F-2: The second terminal adjusts the receiving priority of the second object to the first preset priority at a feedback opportunity among the M feedback opportunities that is after the eleventh feedback opportunity, or subtracts k3 levels, or abandons receiving the second object, wherein the second object includes the second channel that has been received at the eleventh feedback opportunity, the eleventh feedback opportunity includes at least part of the M feedback opportunities, and k3 is an integer greater than zero.

[0158] For item F-1, for example, if the second terminal does not receive the second channel C3 at the ninth feedback opportunity, the second terminal can increase the reception priority of C3 at the tenth feedback opportunity (for example, a feedback opportunity after the ninth feedback opportunity) other than the ninth feedback opportunity among the M feedback opportunities, so that it is easier to receive C3 at the tenth feedback opportunity, that is, the reception probability of C3 can be increased. Optionally, the tenth feedback opportunity is the first feedback opportunity after the ninth feedback opportunity in the time domain among the M feedback opportunities.

[0159] For item F-2, for example, if the second terminal has received the second channel C4 at the eleventh feedback opportunity, the second terminal may adjust the reception priority of C4 at feedback opportunities other than the eleventh feedback opportunity among the M feedback opportunities (for example, feedback opportunities after the eleventh feedback opportunity) to the first preset priority level or minus k3 levels, so that the terminal will not or has a lower probability of selecting to receive C4 at feedback opportunities after the eleventh feedback opportunity among the M feedback opportunities, thereby increasing the reception probability of other second channels that have not yet been received.

[0160] Among them, the first preset priority can be the lowest receiving priority, or k3 or the first preset priority can be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (ie, the first terminal) sending the second channel.

[0161] Optionally, the method further comprises:

[0162] The second terminal abandons receiving a second object, wherein the second object includes a second channel that has been received at an eleventh feedback opportunity, and the eleventh feedback opportunity includes at least part of the M feedback opportunities.

[0163] It can be seen from this that if the second terminal has received the second object at the eleventh feedback opportunity, it may give up receiving the second object subsequently.

[0164] It can be understood that when the second terminal has received a second channel at the eleventh feedback opportunity, it is not necessary to continue to receive the second channel at the subsequent feedback opportunity associated with the second channel. Therefore, when determining the receiving beam at the subsequent feedback opportunity, it is no longer necessary to consider the second channel.

[0165] Optionally, the method further comprises:

[0166] The second terminal does not adjust the reception priority of the third object at the thirteenth feedback opportunity, wherein the third object includes a second channel that is not received at the twelfth feedback opportunity due to a half-duplex problem, the twelfth feedback opportunity includes at least part of the M feedback opportunities, and the thirteenth feedback opportunity includes feedback opportunities among the M feedback opportunities except the twelfth feedback opportunity.

[0167] It can be seen that if the first terminal does not receive the third object at the twelfth feedback opportunity due to a half-duplex problem, the reception priority of the third object at the thirteenth feedback opportunity remains unchanged relative to the reception priority of the third object at the twelfth feedback opportunity. Because the first terminal chooses to send at the twelfth feedback opportunity, it is unable to receive all second channels. At this time, the second channel (i.e., the third object) not received at the twelfth feedback opportunity can still be received at the previous priority at the subsequent feedback opportunity, thereby reducing the reception interference to other high-priority second channels, so that it is easier to receive the second channel with a higher priority at the thirteenth feedback opportunity.

[0168] Optionally, the reception priority of the first object at the tenth feedback opportunity satisfies at least one of the following items H-1 to H-5:

[0169] Item H-1: the reception priority of the first object at feedback opportunities in the same third set is the same, wherein each n3 adjacent feedback opportunities in the time domain in the tenth feedback opportunity belongs to one third set;

[0170] Item H-2: the reception priority of the first object at the feedback opportunity in the j+1th third set is higher than the transmission priority of the first object at the feedback opportunity in the jth third set by k4 levels;

[0171] Item H-3: the reception priority of the first object at the p+1th feedback opportunity in the tenth feedback opportunity is k5 levels higher than the reception priority of the first object at the pth feedback opportunity;

[0172] Item H-4: the highest reception priority of the first object at the feedback opportunity in the third set is the highest reception priority or the second threshold, and the highest reception priority and the second threshold are configured values; for example, the highest reception priority and the second threshold may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the first terminal) sending the second channel;

[0173] Item H-5: the receiving priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is the second preset priority;

[0174] Item H-6: The reception priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is k6 levels higher than the reception priority of the first object at the ninth feedback opportunity. ;

[0175] Among them, n3, k4, k5, k6 are all integers greater than zero, j is an integer from 1 to m2, m2 represents the number of the third set, p is an integer from 1 to m3, m3 represents the number of feedback opportunities included in the tenth feedback opportunity.

[0176] For item H-1, every n3 adjacent feedback opportunities of the tenth feedback opportunity in the time domain are divided into a third set, wherein if the number of the last remaining feedback opportunities is less than n3, the last remaining feedback opportunities constitute the last third set, so that the tenth feedback opportunity is divided into multiple third sets. For the multiple third sets, the reception priority of the first object on the feedback opportunities in the same third set is the same.

[0177] For item H-2, the j+1th third set and the jth third set may be two adjacent third sets in the fifth sorting or the sixth sorting. Here, the fifth sorting is to sort the multiple third sets from front to back in the time domain, and the sixth sorting is to sort the third sets from back to front in the time domain, that is, the j+1th third set may be a set that is before or after the jth third set in the time domain.

[0178] It can be seen from item H-2 that, in the order from front to back in the time domain of the tenth feedback opportunity, the reception priority of the first object at each n3 feedback opportunities in the back is raised or lowered by k4 levels compared with the reception priority of the first object at the first n3 feedback opportunities. Among them, the tenth feedback opportunity is divided into multiple third sets, and in the order from front to back in the time domain, the reception priority of the first object at the feedback opportunities included gradually increases, which can increase the probability of the second terminal using the corresponding beam to receive the first object, thereby increasing the probability of the second terminal successfully receiving the first object.

[0179] The above k4 may be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (ie, the first terminal) that sends the second channel.

[0180] For item H-3, the above-mentioned p+1th feedback opportunity and the pth feedback opportunity may be two adjacent feedback opportunities in the seventh sorting or the eighth sorting. Here, the seventh sorting is the sorting of the tenth feedback opportunity in the order from front to back in the time domain, and the eighth sorting is the sorting of the tenth feedback opportunity in the order from back to front in the time domain, that is, the p+1th feedback opportunity may be a feedback opportunity before or after the pth feedback opportunity in the time domain.

[0181] It can be seen from item H-3 that, in the order from front to back in the time domain, the reception priority of the first object at the tenth feedback opportunity is raised or lowered by k5 levels compared with the reception priority of the first object at the previous feedback opportunity. Among them, the reception priority of the first object at the tenth feedback opportunity gradually increases, which can increase the probability of the second terminal using the corresponding beam to receive the first object, thereby increasing the probability of the second terminal successfully receiving the first object.

[0182] The above k5 may be predefined by a protocol, or preconfigured by a network side, or configured by a network side, or indicated by a terminal (ie, the first terminal) that sends the second channel.

[0183] For item H-4, no matter which item or items of H-1 to H-3 are used for the reception priority of the first object at the tenth feedback opportunity, the reception priority of the first object at the tenth feedback opportunity may be the highest reception priority or reach the second threshold. For example, under the premise of H-1 to H-2, the reception priority of the first object at the feedback opportunity in the third set may be the highest reception priority or reach the second threshold; or, for example, under the premise of H-3, the reception priority of the first object at the tenth feedback opportunity may be the highest reception priority or reach the second threshold.

[0184] For items H-5 and H-6, the second preset priority can be the highest receiving priority, or k6 or the second preset priority can be predefined by the protocol, or preconfigured by the network side, or configured by the network side, or indicated by the terminal (i.e., the first terminal) sending the second channel.

[0185] In addition, it should be noted that, for example, if the tenth feedback opportunity is the first feedback opportunity after the ninth feedback opportunity in the time domain among the M feedback opportunities, then if the first object is not received at the ninth feedback opportunity, the reception priority of the first object at the tenth feedback opportunity can be increased; if the first object is still not received at the tenth feedback opportunity, the reception priority of the first object at the next feedback opportunity of the tenth feedback opportunity will continue to be increased, that is, in this case, the tenth feedback opportunity is the above-mentioned "ninth feedback opportunity" (that is, the feedback opportunity when the first object is not received), and the next feedback opportunity of the tenth feedback opportunity is the "tenth feedback opportunity". It can be seen that if a second channel is not received at the current feedback opportunity, the reception priority of the second channel at the next feedback opportunity of the current feedback opportunity can be increased.

[0186] Optionally, when the fourteenth feedback opportunity satisfies at least one of the following conditions, the receiving beam at the fourteenth feedback opportunity is used to receive the second channel corresponding to the fourth object:

[0187] The fourteenth feedback opportunity is the last one of the feedback opportunities corresponding to the fourth object, wherein the fourth object includes at least one first channel sent by the second terminal;

[0188] The fourteenth feedback opportunity is not the last one of the feedback opportunities corresponding to the fifth object, wherein the fifth object includes at least part of the channels in the first channel sent by the second terminal except the fourth object;

[0189] The receiving priority of the second channel corresponding to the fourth object at the fourteenth feedback opportunity is greater than a third threshold;

[0190] The receiving priority of the second channel corresponding to the fifth object at the fourteenth feedback opportunity is less than a fourth threshold;

[0191] The fourteenth feedback opportunity includes at least part of the M feedback opportunities.

[0192] For example, a first channel corresponds to two feedback opportunities, and there is a feedback opportunity every 4 time slots, for example, there is a feedback opportunity on time slots 0, 4, 8, and 12 respectively. If the second terminal sends the first channel to the first terminal on time slot 2 and time slot 6 respectively, the second terminal can receive the second channel corresponding to the first channel on time slot 2 at the feedback opportunities on time slots 4 and 8, and can receive the second channel corresponding to the first channel on time slot 6 at the feedback opportunities on time slots 8 and time slot 12. Among them, if time slot 8 belongs to the last opportunity of the second channel corresponding to the first channel on time slot 2, but does not belong to the last opportunity of the second channel corresponding to the first channel on time slot 6, therefore, there is still an opportunity to receive the second channel corresponding to the first channel on time slot 6 at the feedback opportunity after time slot 8. Then, further, if at time slot 8, the reception priority of the second channel corresponding to the first channel on time slot 2 is greater than the third threshold, and the reception priority of the second channel corresponding to the first channel on time slot 6 is less than the fourth threshold, then the receiving beam at the feedback opportunity on time slot 8 can be used to receive the second channel corresponding to the first channel on time slot 2, thereby increasing the reception probability of the second channel corresponding to the first channel on time slot 2 and preventing it from being ultimately unable to be received.

[0193] Optionally, the target receiving beam includes a receiving beam with the largest number of second channels that the second terminal can receive at the feedback opportunity.

[0194] It can be seen that for each of the M feedback opportunities, the second terminal can select the receiving beam with the largest number of second channels that can be received by each receiving beam at each feedback opportunity as the receiving beam at the feedback opportunity.

[0195] Optionally, when the M feedback opportunities are frequency division multiplexing (FDM), the target receiving beam includes a receiving beam with the largest number of second channels that the second terminal can receive at the feedback opportunity.

[0196] Among them, if the second terminal can only select one receiving beam at each feedback opportunity, then in the FDM scenario, the appropriate receiving beam can be selected for each feedback opportunity based on the number of second channels that can be received by different receiving beams at each feedback opportunity.

[0197] Optionally, the receiving beam of the second channel on at least some of the M feedback opportunities is indicated by the first terminal to the second terminal, wherein the first terminal includes a terminal that sends the second channel.

[0198] Optionally, the target receiving beam is determined by at least one of the following methods C-1 to C-5:

[0199] Item C-1: Protocol pre-defined;

[0200] Item C-2: Network side pre-configuration;

[0201] Item C-3: Network side configuration;

[0202] Item C-4: second terminal indication, wherein the second terminal includes a terminal sending the first channel;

[0203] Item C-5: The first terminal is determined.

[0204] It can be seen from this that the receiving beams at the M feedback occasions can also be determined by at least one of the methods from C-1 to C-5.

[0205] Exemplarily, the receiving beams on at least some of the M feedback opportunities may be indicated by the terminal (ie, the first terminal) sending the second channel sending a cooperation message (eg, an IUC message) to the second terminal.

[0206] In summary, in order to facilitate a better understanding of the channel transmission method of the embodiment of the present application, taking the first channel as PSCCH or PSSCH and the second channel as PSFCH as an example, the following specific implementation manner of the channel transmission method of the embodiment of the present application is introduced:

[0207] In order to address the problem that the terminal can only use one beam when receiving PSFCH, resulting in the inability to receive PSFCH on other beams, the technology of multiple PSFCH occasions can be introduced, that is, each PSCCH or PSSCH corresponds to multiple PSFCH occasions. On this basis, two technical directions can be introduced.

[0208] 1. The transmit beams on multiple PSFCH occasions are the same: Figure 6 As shown, for example, they all correspond to the transmission beams of PSCCH or PSSCH, thereby relying on multiple transmission opportunities to increase the probability of PSFCH being received. At the same time, since the PSFCH receiving beam may be determined based on the priority level, a priority lifting mechanism can be introduced to further increase the probability of PSFCH being received by subsequent PSFChoccasion transmissions, so as to avoid the problem that the receiving terminal always receives a PSFCH with a higher priority, which causes the PSFCH of the current transmitting terminal to still not be received.

[0209] For example, the PSFCH transmission priority on the first occasion corresponding to the PSCCH or PSSCH is equal to the priority of the PSCCH or PSSCH, and the PSFCH transmission priority on the next occasion is raised by K levels or lowered by K, and the PSFCH transmission priority on the next occasion is raised by K levels or lowered by K again, until the priority reaches the highest level or reaches the first threshold.

[0210] Second, the transmission beams on multiple PSFCH occasions are different, such as Figure 7 As shown, the probability of PSFCH being received is increased by transmitting beams in multiple directions. First, the transmission beam on the first PSFCH occasion corresponds to the transmission beam of PSCCH or PSSCH. Then, the transmission beam on the subsequent PSFCH occasion is determined. Here, in order to ensure that the transmission beam covers the reception of the receiving terminal, the transmission beams on all occasions can cover all directions, or cover the communication directions of the sender and receiver, such as covering the directions of candidate beams during beam pairing or beam management. Similarly, the PSFCH transmission priorities in different transmission directions may also be different. For example, the transmission priority corresponding to the later PSFCH in the time domain is higher.

[0211] It can be seen that the embodiments of the present application solve the problem of low transmission efficiency of PSFCH caused by the directivity of the beam under FR2 to a certain extent.

[0212] The channel transmission method provided in the embodiment of the present application can be executed by a channel transmission device. In the embodiment of the present application, the channel transmission device provided in the embodiment of the present application is described by taking the channel transmission method executed by the channel transmission device as an example.

[0213] In a third aspect, an embodiment of the present application provides a channel transmission device, which can be applied to a first terminal, such as Figure 8 As shown, the channel transmission device 80 includes the following modules:

[0214] A first beam determination module 801 is configured to determine a target transmit beam, wherein the target transmit beam includes transmit beams at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero;

[0215] The first sending module 802 is configured to send a second channel at the M feedback opportunities through the target sending beam, wherein the second channel is a feedback channel corresponding to the first channel.

[0216] Optionally, the target transmit beam satisfies at least one of the following:

[0217] The transmission beams of the second channel on at least some of the M feedback opportunities are in a first relationship;

[0218] There is a second relationship between the transmission beams of the second channel on at least some of the M feedback opportunities.

[0219] Optionally, the same second channel has different sending priorities at different feedback occasions.

[0220] Optionally, the sending priority of the second channel on the M feedback occasions satisfies at least one of the following:

[0221] The transmission priority of the second channel at the first feedback opportunity is the same as the priority of the corresponding first channel, wherein the first feedback opportunity includes at least part of the M feedback opportunities;

[0222] The transmission priority of the same second channel at different feedback opportunities in the same first set is the same, wherein, in at least some of the feedback opportunities of the M feedback opportunities except the first feedback opportunity, every n1 adjacent feedback opportunities in the time domain belong to one first set;

[0223] The transmission priority of the same second channel at the feedback opportunity in the (i+1)th first set is k1 levels higher than the transmission priority at the feedback opportunity in the (i)th first set;

[0224] The sending priority of the same second channel at the q+1th feedback opportunity among the M feedback opportunities is k2 levels higher than the sending priority at the qth feedback opportunity;

[0225] The highest transmission priority of the second channel on the M feedback occasions may be the highest transmission priority or the first threshold, and the highest transmission priority and the first threshold are configured values;

[0226] Among them, n1, k1, k2 are all integers greater than zero, i is an integer from 1 to m1, m1 represents the number of the first set, and q is an integer from 1 to M.

[0227] Optionally, the transmission beams at feedback opportunities within the same second set are different, and the transmission priorities of the same second channel at different feedback opportunities within the same second set are different, wherein at least some of the M feedback opportunities belong to a second set for every n2 adjacent feedback opportunities in the time domain, and n2 is an integer greater than zero.

[0228] Optionally, the transmission beams at the M feedback occasions satisfy at least one of the following:

[0229] The transmit beam on the second feedback opportunity is determined according to the transmit beam of the first target channel, wherein the first target channel includes a first channel corresponding to a second channel determined to be transmitted, and the second feedback opportunity includes at least part of the M feedback opportunities;

[0230] In a case where the third feedback opportunity satisfies at least one of the first condition and the second condition, the transmit beam at the third feedback opportunity is determined according to the second target channel, wherein the third feedback opportunity includes at least part of the M feedback opportunities, the first condition is that the second target channel is sent for the first time at the third feedback opportunity, the second condition is that the third target channel has been sent at least N feedback opportunities before the third feedback opportunity, N is an integer greater than zero, the second target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity, and the third target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity except the second target channel;

[0231] The transmission configuration indications of the transmit beams and the target reference signals at different feedback opportunities in a fourth feedback opportunity are associated according to the index order of the target reference signals, wherein the fourth feedback opportunity includes at least part of the M feedback opportunities;

[0232] A transmit beam at a fifth feedback opportunity has a first relationship with at least some of the beams in a target set, wherein the target set includes a candidate beam set determined by the first terminal and a second terminal or a subset of the candidate beam set, wherein the second terminal includes a terminal that sends a first channel, and the fifth feedback opportunity includes at least some of the M feedback opportunities;

[0233] The beam direction or beam switching order of the transmission beam at the sixth feedback opportunity is indicated by the second terminal, wherein the sixth feedback opportunity includes at least part of the M feedback opportunities.

[0234] Optionally, the number M of the M feedback opportunities and at least one of the target transmit beams are determined by at least one of the following methods:

[0235] The protocol is predefined;

[0236] Pre-configuration on the network side;

[0237] Network side configuration;

[0238] A second terminal indication, wherein the second terminal includes a terminal sending the first channel;

[0239] The first terminal determines

[0240] Optionally, the first relationship includes at least one of the following: identical beams, quasi co-location, satisfying a quasi co-location relationship, identical beam indexes, identical beam identifiers, consistent transmission configuration indications, reciprocity, coverage, and being covered.

[0241] Optionally, the second relationship includes at least one of different beams, quasi-co-location but opposite or different spatial parameters, different beam indexes, different beam identifiers, different transmission configuration indications, and reciprocity.

[0242] The channel transmission device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or can be other devices other than a terminal. Exemplarily, the terminal can include but is not limited to the types of the terminal 11 listed above, and the embodiment of the present application does not specifically limit it.

[0243] In a fourth aspect, an embodiment of the present application provides a channel transmission device, which can be applied to a second terminal, such as Fig. 9 As shown, the channel transmission device 90 includes the following modules:

[0244] A second beam determination module 901 is configured to determine a target receiving beam, wherein the target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than zero;

[0245] The first receiving module 902 is configured to receive a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

[0246] Optionally, the second beam determination module 901 is specifically configured to:

[0247] According to the reception priorities of the plurality of second channels corresponding to the same feedback opportunity, reception beams at the feedback opportunities corresponding to the plurality of second channels are determined.

[0248] Optionally, the reception priority of the second channel on the M feedback occasions satisfies at least one of the following:

[0249] a receiving priority of the second channel at a seventh feedback opportunity, which is the same as the priority of the corresponding first channel, wherein the seventh feedback opportunity includes at least part of the M feedback opportunities;

[0250] The reception priority of the second channel on at least some feedback opportunities in the eighth feedback opportunity is different from the priority of the corresponding first channel, wherein the eighth feedback opportunity includes at least some feedback opportunities of the M feedback opportunities.

[0251] Optionally, the device further comprises:

[0252] An adjustment module, configured to adjust a receiving priority of the second channel at least on some feedback occasions;

[0253] The second beam determination module 901 is specifically configured to:

[0254] The target receiving beam is determined according to the adjusted receiving priority.

[0255] Optionally, the adjustment module is specifically configured to perform at least one of the following:

[0256] In the case where the first object exists, increasing the reception priority of the first object at the tenth feedback opportunity, wherein the first object includes a second channel that is not received at the ninth feedback opportunity, the ninth feedback opportunity includes at least part of the M feedback opportunities, and the tenth feedback opportunity includes the M feedback opportunities except the ninth feedback opportunity;

[0257] At a feedback opportunity among the M feedback opportunities that is after the eleventh feedback opportunity, the reception priority of the second object is adjusted to the first preset priority, or minus k3 levels, wherein the second object includes a second channel that has been received at the eleventh feedback opportunity, the eleventh feedback opportunity includes at least part of the M feedback opportunities, and k3 is an integer greater than zero.

[0258] Optionally, the device further comprises:

[0259] A maintaining module, configured to not adjust a receiving priority of a third object at a thirteenth feedback opportunity, wherein the third object includes a second channel that is not received at a twelfth feedback opportunity due to a half-duplex problem, the twelfth feedback opportunity includes at least part of the M feedback opportunities, and the thirteenth feedback opportunity includes feedback opportunities among the M feedback opportunities except the twelfth feedback opportunity.

[0260] Optionally, the reception priority of the first object at the tenth feedback opportunity satisfies at least one of the following:

[0261] The reception priority of the first object at feedback opportunities in the same third set is the same, wherein each n3 adjacent feedback opportunities in the time domain in the tenth feedback opportunity belongs to one third set;

[0262] The reception priority of the first object at the feedback opportunity in the j+1th third set is k4 levels higher than the transmission priority of the first object at the feedback opportunity in the jth third set;

[0263] The reception priority of the first object at the p+1th feedback opportunity in the tenth feedback opportunity is k5 levels higher than the reception priority of the first object at the pth feedback opportunity;

[0264] The highest reception priority of the first object at the feedback occasion in the third set is the highest reception priority or the second threshold, and the highest reception priority and the second threshold are configured values;

[0265] The receiving priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is a second preset priority;

[0266] The reception priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is higher than the reception priority of the first object at the ninth feedback opportunity by k6 levels;

[0267] Among them, n3, k4, k5, k6 are all integers greater than zero, j is an integer from 1 to m2, m2 represents the number of the third set, p is an integer from 1 to m3, m3 represents the number of feedback opportunities included in the tenth feedback opportunity.

[0268] Optionally, the device further comprises:

[0269] The abandonment module is configured to abandon receiving a second object, wherein the second object includes a second channel that has been received at an eleventh feedback opportunity, and the eleventh feedback opportunity includes at least part of the M feedback opportunities.

[0270] Optionally, when the fourteenth feedback opportunity satisfies at least one of the following conditions, the receiving beam at the fourteenth feedback opportunity is used to receive the second channel corresponding to the fourth object:

[0271] The fourteenth feedback opportunity is the last one of the feedback opportunities corresponding to the fourth object, wherein the fourth object includes at least one first channel sent by the second terminal;

[0272] The fourteenth feedback opportunity is not the last one of the feedback opportunities corresponding to the fifth object, wherein the fifth object includes at least part of the channels in the first channel sent by the second terminal except the fourth object;

[0273] The receiving priority of the second channel corresponding to the fourth object at the fourteenth feedback opportunity is greater than a third threshold;

[0274] The receiving priority of the second channel corresponding to the fifth object at the fourteenth feedback opportunity is less than a fourth threshold;

[0275] The fourteenth feedback opportunity includes at least part of the M feedback opportunities.

[0276] Optionally, the target receiving beam includes a receiving beam with the largest number of second channels that the second terminal can receive at the feedback opportunity.

[0277] Optionally, the receiving beam of the second channel on at least some of the M feedback opportunities is indicated by the first terminal to the second terminal, wherein the first terminal includes a terminal that sends the second channel.

[0278] The channel transmission device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. For example, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0279] The channel transmission device provided in the embodiment of the present application can achieve Figure 5 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0280] like Fig.10 As shown, the embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, and the memory 1002 stores a program or instruction that can be run on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instruction is executed by the processor 1001 to implement the various steps of the above-mentioned channel transmission method embodiment, and can achieve the same technical effect. When the communication device 1000 is a network side device, the program or instruction is executed by the processor 1001 to implement the various steps of the above-mentioned channel transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0281] The embodiment of the present application also provides a terminal, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 4 Or the steps in the method embodiment shown in 5. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Fig.11 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0282] The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of a processor 1110.

[0283] Those skilled in the art will appreciate that the terminal 1100 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 1110 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.11 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0284] It should be understood that in the embodiment of the present application, the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0285] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 1101 can transmit the data to the processor 1110 for processing; in addition, the RF unit 1101 can send uplink data to the network side device. Generally, the RF unit 1101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0286] The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 1109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0287] The processor 1110 may include one or more processing units; optionally, the processor 1110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 1110.

[0288] In a first aspect, when the terminal 1100 serves as a first terminal, the processor 1110 is configured to determine a target transmit beam, wherein the target transmit beam includes a transmit beam at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero;

[0289] The radio frequency module 1101 is used to send a second channel at the M feedback opportunities through the target sending beam, wherein the second channel is a feedback channel corresponding to the first channel.

[0290] Optionally, the target transmit beam satisfies at least one of the following:

[0291] The transmission beams of the second channel on at least some of the M feedback opportunities are in a first relationship;

[0292] There is a second relationship between the transmission beams of the second channel on at least some of the M feedback opportunities.

[0293] Optionally, the same second channel has different sending priorities at different feedback occasions.

[0294] Optionally, the sending priority of the second channel on the M feedback occasions satisfies at least one of the following:

[0295] The transmission priority of the second channel at the first feedback opportunity is the same as the priority of the corresponding first channel, wherein the first feedback opportunity includes at least part of the M feedback opportunities;

[0296] The transmission priority of the same second channel at different feedback opportunities in the same first set is the same, wherein, in at least some of the feedback opportunities of the M feedback opportunities except the first feedback opportunity, every n1 adjacent feedback opportunities in the time domain belong to one first set;

[0297] The transmission priority of the same second channel at the feedback opportunity in the (i+1)th first set is k1 levels higher than the transmission priority at the feedback opportunity in the (i)th first set;

[0298] The sending priority of the same second channel at the q+1th feedback opportunity among the M feedback opportunities is k2 levels higher than the sending priority at the qth feedback opportunity;

[0299] The highest transmission priority of the second channel on the M feedback occasions may be the highest transmission priority or the first threshold, and the highest transmission priority and the first threshold are configured values;

[0300] Among them, n1, k1, k2 are all integers greater than zero, i is an integer from 1 to m1, m1 represents the number of the first set, and q is an integer from 1 to M.

[0301] Optionally, the transmission beams at feedback opportunities within the same second set are different, and the transmission priorities of the same second channel at different feedback opportunities within the same second set are different, wherein at least some of the M feedback opportunities belong to a second set for every n2 adjacent feedback opportunities in the time domain, and n2 is an integer greater than zero.

[0302] Optionally, the transmission beams at the M feedback occasions satisfy at least one of the following:

[0303] The transmit beam on the second feedback opportunity is determined according to the transmit beam of the first target channel, wherein the first target channel includes a first channel corresponding to a second channel determined to be transmitted, and the second feedback opportunity includes at least part of the M feedback opportunities;

[0304] In a case where the third feedback opportunity satisfies at least one of the first condition and the second condition, the transmit beam at the third feedback opportunity is determined according to the second target channel, wherein the third feedback opportunity includes at least part of the M feedback opportunities, the first condition is that the second target channel is sent for the first time at the third feedback opportunity, the second condition is that the third target channel has been sent at least N feedback opportunities before the third feedback opportunity, N is an integer greater than zero, the second target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity, and the third target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity except the second target channel;

[0305] The transmission configuration indications of the transmit beams and the target reference signals at different feedback opportunities in a fourth feedback opportunity are associated according to the index order of the target reference signals, wherein the fourth feedback opportunity includes at least part of the M feedback opportunities;

[0306] A transmit beam at a fifth feedback opportunity has a first relationship with at least some of the beams in a target set, wherein the target set includes a candidate beam set determined by the first terminal and a second terminal or a subset of the candidate beam set, wherein the second terminal includes a terminal that sends a first channel, and the fifth feedback opportunity includes at least some of the M feedback opportunities;

[0307] The beam direction or beam switching order of the transmission beam at the sixth feedback opportunity is indicated by the second terminal, wherein the sixth feedback opportunity includes at least part of the M feedback opportunities.

[0308] Optionally, the number M of the M feedback opportunities and at least one of the target transmit beams are determined by at least one of the following methods:

[0309] The protocol is predefined;

[0310] Pre-configuration on the network side;

[0311] Network side configuration;

[0312] A second terminal indication, wherein the second terminal includes a terminal sending the first channel;

[0313] The first terminal determines

[0314] Optionally, the first relationship includes at least one of the following: identical beams, quasi co-location, satisfying a quasi co-location relationship, identical beam indexes, identical beam identifiers, consistent transmission configuration indications, reciprocity, coverage, and being covered.

[0315] Optionally, the second relationship includes at least one of different beams, quasi-co-location but opposite or different spatial parameters, different beam indexes, different beam identifiers, different transmission configuration indications, and reciprocity.

[0316] In a second aspect, when the terminal 1100 serves as the second terminal, the processor 1110 is configured to determine a target receiving beam, wherein the target receiving beam includes a receiving beam at M feedback opportunities corresponding to a first channel sent by the second terminal, where M is an integer greater than zero;

[0317] The radio frequency unit 1101 is used to receive a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

[0318] Optionally, the processor 1110 determines the target receive beam, including:

[0319] According to the reception priorities of the plurality of second channels corresponding to the same feedback opportunity, reception beams at the feedback opportunities corresponding to the plurality of second channels are determined.

[0320] Optionally, the reception priority of the second channel on the M feedback occasions satisfies at least one of the following:

[0321] a receiving priority of the second channel at a seventh feedback opportunity, which is the same as the priority of the corresponding first channel, wherein the seventh feedback opportunity includes at least part of the M feedback opportunities;

[0322] The reception priority of the second channel on at least some feedback opportunities in the eighth feedback opportunity is different from the priority of the corresponding first channel, wherein the eighth feedback opportunity includes at least some feedback opportunities of the M feedback opportunities.

[0323] Optionally, the processor 1110 is further configured to:

[0324] adjusting a reception priority of the second channel at least in part of the feedback opportunities;

[0325] The processor 1110 determines the target receiving beam, including:

[0326] The target receiving beam is determined according to the adjusted receiving priority.

[0327] Optionally, the processor 1110 adjusts the receiving priority of the second channel at least in part of the feedback opportunities, including at least one of the following:

[0328] In the case where the first object exists, increasing the reception priority of the first object at the tenth feedback opportunity, wherein the first object includes a second channel that is not received at the ninth feedback opportunity, the ninth feedback opportunity includes at least part of the M feedback opportunities, and the tenth feedback opportunity includes the M feedback opportunities except the ninth feedback opportunity;

[0329] At a feedback opportunity among the M feedback opportunities that is after the eleventh feedback opportunity, the reception priority of the second object is adjusted to the first preset priority, or minus k3 levels, wherein the second object includes a second channel that has been received at the eleventh feedback opportunity, the eleventh feedback opportunity includes at least part of the M feedback opportunities, and k3 is an integer greater than zero.

[0330] Optionally, the processor 1110 is further configured to:

[0331] The reception priority of the third object at the thirteenth feedback opportunity is not adjusted, wherein the third object includes a second channel that is not received at the twelfth feedback opportunity due to a half-duplex problem, the twelfth feedback opportunity includes at least part of the M feedback opportunities, and the thirteenth feedback opportunity includes feedback opportunities among the M feedback opportunities except the twelfth feedback opportunity.

[0332] Optionally, the reception priority of the first object at the tenth feedback opportunity satisfies at least one of the following:

[0333] The reception priority of the first object at feedback opportunities in the same third set is the same, wherein each n3 adjacent feedback opportunities in the time domain in the tenth feedback opportunity belongs to one third set;

[0334] The reception priority of the first object at the feedback opportunity in the j+1th third set is k4 levels higher than the transmission priority of the first object at the feedback opportunity in the jth third set;

[0335] The reception priority of the first object at the p+1th feedback opportunity in the tenth feedback opportunity is k5 levels higher than the reception priority of the first object at the pth feedback opportunity;

[0336] The highest reception priority of the first object at the feedback occasion in the third set is the highest reception priority or the second threshold, and the highest reception priority and the second threshold are configured values;

[0337] The receiving priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is a second preset priority;

[0338] The reception priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is higher than the reception priority of the first object at the ninth feedback opportunity by k6 levels;

[0339] Among them, n3, k4, k5, k6 are all integers greater than zero, j is an integer from 1 to m2, m2 represents the number of the third set, p is an integer from 1 to m3, m3 represents the number of feedback opportunities included in the tenth feedback opportunity.

[0340] Optionally, the radio frequency unit 1101 is further configured to:

[0341] Receiving a second object is abandoned, wherein the second object includes a second channel that has been received at an eleventh feedback opportunity, and the eleventh feedback opportunity includes at least part of the M feedback opportunities.

[0342] Optionally, when the fourteenth feedback opportunity satisfies at least one of the following conditions, the receiving beam at the fourteenth feedback opportunity is used to receive the second channel corresponding to the fourth object:

[0343] The fourteenth feedback opportunity is the last one of the feedback opportunities corresponding to the fourth object, wherein the fourth object includes at least one first channel sent by the second terminal;

[0344] The fourteenth feedback opportunity is not the last one of the feedback opportunities corresponding to the fifth object, wherein the fifth object includes at least part of the channels in the first channel sent by the second terminal except the fourth object;

[0345] The receiving priority of the second channel corresponding to the fourth object at the fourteenth feedback opportunity is greater than a third threshold;

[0346] The receiving priority of the second channel corresponding to the fifth object at the fourteenth feedback opportunity is less than a fourth threshold;

[0347] The fourteenth feedback opportunity includes at least part of the M feedback opportunities.

[0348] Optionally, the target receiving beam includes a receiving beam with the largest number of second channels that the second terminal can receive at the feedback opportunity.

[0349] Optionally, the receiving beam of the second channel on at least some of the M feedback opportunities is indicated by the first terminal to the second terminal, wherein the first terminal includes a terminal that sends the second channel.

[0350] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the above-mentioned channel transmission method embodiment, and achieve the same or corresponding technical effect. To avoid repetition, it will not be repeated here.

[0351] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned channel transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0352] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0353] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned channel transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0354] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0355] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned channel transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0356] An embodiment of the present application also provides a channel transmission system, including: a first terminal and a second terminal, wherein the first terminal can be used to execute the steps of the channel transmission method as described in the first aspect above, and the second terminal can be used to execute the steps of the channel transmission method as described in the second aspect above.

[0357] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0358] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0359] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A channel transmission method, characterized in that: The method comprises: The first terminal determines a target transmit beam, wherein the target transmit beam includes transmit beams at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero; The first terminal sends a second channel at the M feedback opportunities through the target transmission beam, wherein the second channel is a feedback channel corresponding to the first channel.

2. The method according to claim 1, characterized in that The target transmit beam satisfies at least one of the following: The transmission beams of the second channel on at least some of the M feedback opportunities are in a first relationship; There is a second relationship between the transmission beams of the second channel on at least some of the M feedback opportunities.

3. The method according to claim 1 or 2, characterized in that: The sending priorities of the same second channel at different feedback occasions are different.

4. The method according to claim 1 or 2, characterized in that: The transmission priority of the second channel on the M feedback occasions satisfies at least one of the following: The transmission priority of the second channel at the first feedback opportunity is the same as the priority of the corresponding first channel, wherein the first feedback opportunity includes at least part of the M feedback opportunities; The transmission priority of the same second channel at different feedback opportunities in the same first set is the same, wherein, in at least some of the feedback opportunities of the M feedback opportunities except the first feedback opportunity, every n1 adjacent feedback opportunities in the time domain belong to one first set; The transmission priority of the same second channel at the feedback opportunity in the (i+1)th first set is k1 levels higher than the transmission priority at the feedback opportunity in the (i)th first set; The sending priority of the same second channel at the q+1th feedback opportunity among the M feedback opportunities is k2 levels higher than the sending priority at the qth feedback opportunity; The highest transmission priority of the second channel on the M feedback occasions may be the highest transmission priority or the first threshold, and the highest transmission priority and the first threshold are configured values; Among them, n1, k1, k2 are all integers greater than zero, i is an integer from 1 to m1, m1 represents the number of the first set, and q is an integer from 1 to M.

5. The method according to claim 1 or 2, characterized in that: The transmission beams at the feedback opportunities within the same second set are different, and the transmission priorities of the same second channel at different feedback opportunities within the same second set are different, wherein at least some of the M feedback opportunities belong to a second set for every n2 adjacent feedback opportunities in the time domain, and n2 is an integer greater than zero.

6. The method according to any one of claims 1 to 5, characterized in that The transmission beams at the M feedback occasions satisfy at least one of the following: The transmit beam on the second feedback opportunity is determined according to the transmit beam of the first target channel, wherein the first target channel includes a first channel corresponding to a second channel determined to be transmitted, and the second feedback opportunity includes at least part of the M feedback opportunities; In a case where the third feedback opportunity satisfies at least one of the first condition and the second condition, the transmit beam at the third feedback opportunity is determined according to the second target channel, wherein the third feedback opportunity includes at least part of the M feedback opportunities, the first condition is that the second target channel is sent for the first time at the third feedback opportunity, the second condition is that the third target channel has been sent at least N feedback opportunities before the third feedback opportunity, N is an integer greater than zero, the second target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity, and the third target channel includes at least part of the multiple second channels that need to be sent at the third feedback opportunity except the second target channel; The transmission configuration indications of the transmit beams and the target reference signals at different feedback opportunities in a fourth feedback opportunity are associated according to the index order of the target reference signals, wherein the fourth feedback opportunity includes at least part of the M feedback opportunities; A transmit beam at a fifth feedback opportunity has a first relationship with at least some of the beams in a target set, wherein the target set includes a candidate beam set determined by the first terminal and a second terminal or a subset of the candidate beam set, wherein the second terminal includes a terminal that sends a first channel, and the fifth feedback opportunity includes at least some of the M feedback opportunities; The beam direction or beam switching order of the transmission beam at the sixth feedback opportunity is indicated by the second terminal, wherein the sixth feedback opportunity includes at least part of the M feedback opportunities.

7. The method according to any one of claims 1 to 6, characterized in that The number M of the M feedback opportunities and at least one of the target transmit beams are determined by at least one of the following methods: The protocol is predefined; Pre-configuration on the network side; Network side configuration; A second terminal indication, wherein the second terminal includes a terminal sending the first channel; The first terminal determines 8. The method according to claim 2 or 6, characterized in that: The first relationship includes at least one of the following: identical beams, quasi co-location, satisfying a quasi co-location relationship, identical beam indexes, identical beam identifiers, consistent transmission configuration indications, reciprocity, coverage, and being covered.

9. The method according to claim 2, characterized in that: The second relationship includes at least one of different beams, quasi-co-location but opposite or different spatial parameters, different beam indexes, different beam identifiers, different transmission configuration indications, and reciprocity.

10. A channel transmission method, characterized in that: The method comprises: The second terminal determines a target receiving beam, wherein the target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than zero; The second terminal receives a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

11. The method according to claim 10, characterized in that The second terminal determines the target receiving beam, including: The second terminal determines the receiving beams at the feedback opportunities corresponding to the multiple second channels according to the receiving priorities of the multiple second channels corresponding to the same feedback opportunity.

12. The method according to claim 10 or 11, characterized in that: The reception priority of the second channel on the M feedback occasions satisfies at least one of the following: a receiving priority of the second channel at a seventh feedback opportunity, which is the same as the priority of the corresponding first channel, wherein the seventh feedback opportunity includes at least part of the M feedback opportunities; The reception priority of the second channel on at least some feedback opportunities in the eighth feedback opportunity is different from the priority of the corresponding first channel, wherein the eighth feedback opportunity includes at least some feedback opportunities of the M feedback opportunities.

13. The method according to any one of claims 10 to 12, characterized in that The method further comprises: The second terminal adjusts the reception priority of the second channel on at least part of the feedback opportunities; The second terminal determines the target receiving beam, including: The second terminal determines the target receiving beam according to the adjusted receiving priority.

14. The method according to claim 13, characterized in that The second terminal adjusts the receiving priority of the second channel at least partially at the feedback opportunity, including at least one of the following: In the case where the first object exists, the second terminal increases the reception priority of the first object at the tenth feedback opportunity, wherein the first object includes a second channel that is not received at the ninth feedback opportunity, the ninth feedback opportunity includes at least part of the M feedback opportunities, and the tenth feedback opportunity includes the M feedback opportunities except the ninth feedback opportunity; The second terminal adjusts the reception priority of the second object to the first preset priority, or subtracts k3 levels, at a feedback opportunity among the M feedback opportunities that is located after the eleventh feedback opportunity, wherein the second object includes a second channel that has been received at the eleventh feedback opportunity, the eleventh feedback opportunity includes at least part of the M feedback opportunities, and k3 is an integer greater than zero.

15. The method according to claim 14, characterized in that The method further comprises: The second terminal does not adjust the reception priority of the third object at the thirteenth feedback opportunity, wherein the third object includes a second channel that is not received at the twelfth feedback opportunity due to a half-duplex problem, the twelfth feedback opportunity includes at least part of the M feedback opportunities, and the thirteenth feedback opportunity includes feedback opportunities among the M feedback opportunities except the twelfth feedback opportunity.

16. The method according to claim 14, characterized in that The receiving priority of the first object at the tenth feedback opportunity satisfies at least one of the following: The reception priority of the first object at feedback opportunities in the same third set is the same, wherein each n3 adjacent feedback opportunities in the time domain in the tenth feedback opportunity belongs to one third set; The reception priority of the first object at the feedback opportunity in the j+1th third set is k4 levels higher than the transmission priority of the first object at the feedback opportunity in the jth third set; The reception priority of the first object at the p+1th feedback opportunity in the tenth feedback opportunity is k5 levels higher than the reception priority of the first object at the pth feedback opportunity; The highest reception priority of the first object at the feedback occasion in the third set is the highest reception priority or the second threshold, and the highest reception priority and the second threshold are configured values; The receiving priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is a second preset priority; The reception priority of the first object at at least some of the feedback opportunities in the tenth feedback opportunity is higher than the reception priority of the first object at the ninth feedback opportunity by k6 levels; Among them, n3, k4, k5, k6 are all integers greater than zero, j is an integer from 1 to m2, m2 represents the number of the third set, p is an integer from 1 to m3, m3 represents the number of feedback opportunities included in the tenth feedback opportunity.

17. The method according to any one of claims 10 to 13, characterized in that The method further comprises: The second terminal abandons receiving a second object, wherein the second object includes a second channel that has been received at an eleventh feedback opportunity, and the eleventh feedback opportunity includes at least part of the M feedback opportunities.

18. The method according to any one of claims 10 to 17, characterized in that When the fourteenth feedback opportunity satisfies at least one of the following conditions, the receiving beam at the fourteenth feedback opportunity is used to receive the second channel corresponding to the fourth object: The fourteenth feedback opportunity is the last one of the feedback opportunities corresponding to the fourth object, wherein the fourth object includes at least one first channel sent by the second terminal; The fourteenth feedback opportunity is not the last one of the feedback opportunities corresponding to the fifth object, wherein the fifth object includes at least part of the channels in the first channel sent by the second terminal except the fourth object; The receiving priority of the second channel corresponding to the fourth object at the fourteenth feedback opportunity is greater than a third threshold; The receiving priority of the second channel corresponding to the fifth object at the fourteenth feedback opportunity is less than a fourth threshold; The fourteenth feedback opportunity includes at least part of the M feedback opportunities.

19. The method according to any one of claims 10 to 18, characterized in that The target receiving beam includes a receiving beam with the largest number of second channels that can be received by the second terminal at a feedback opportunity.

20. The method according to any one of claims 10 to 19, characterized in that The receiving beam of the second channel on at least part of the feedback opportunities among the M feedback opportunities is indicated by the first terminal to the second terminal, wherein the first terminal includes a terminal that sends the second channel.

21. A channel transmission device, characterized in that: Applied to a first terminal, the device includes: A first beam determination module, configured to determine a target transmit beam, wherein the target transmit beam includes transmit beams at M feedback opportunities corresponding to a first channel received by the first terminal, where M is an integer greater than zero; The first sending module is used to send a second channel on the M feedback occasions through the target sending beam, wherein the second channel is a feedback channel corresponding to the first channel.

22. A channel transmission device, characterized in that: Applied to a second terminal, the device includes: A second beam determination module, configured to determine a target receiving beam, wherein the target receiving beam includes receiving beams at M feedback opportunities corresponding to the first channel sent by the second terminal, where M is an integer greater than zero; The first receiving module is configured to receive a second channel at the M feedback opportunities through the target receiving beam, wherein the second channel is a feedback channel of the first channel.

23. A terminal, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the channel transmission method according to any one of claims 1 to 9 are implemented, or the steps of the channel transmission method according to any one of claims 10 to 20 are implemented.

24. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the channel transmission method according to any one of claims 1 to 9, or implements the steps of the channel transmission method according to any one of claims 10 to 20.

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