CN111757518B - Information transmission method and communication device - Google Patents

Abstract

The present application provides an information transmission method and communication device. The method includes: determining channel state information CSI transmitted in a first time unit, a first hybrid automatic repeat request HARQ and a second HARQ, where the first HARQ is The feedback information of the data scheduled by the first downlink control information DCI, the second HARQ is the feedback information of the data scheduled by the second DCI; determine the first uplink control information UCI and the second UCI, the first UCI includes the first UCI A HARQ and the CSI, the second UCI includes the second HARQ and the CSI; and sending at least one of the first UCI and the second UCI. In the information transmission method provided by the present application, in multi-site cooperative transmission, the normal transmission of CSI can be guaranteed by changing the association relationship between CSI and HARQ. Improve communication efficiency.

Description

Method and communication device for information transmission

technical field

The present application relates to the field of communications, and more particularly, to a method and a communication device for information transmission.

Background technique

In multi-site cooperative transmission, one terminal device can simultaneously receive data from multiple network devices. The terminal device may use a hybrid automatic repeat request (HARQ) mechanism to feed back the data reception status to multiple network devices. Specifically, the terminal device may need to feed back positive acknowledgement (ACK)/negative acknowledgement (NACK) information of the received data to multiple network devices within one time unit. At the same time, the terminal device also needs to feed back channel state information (channel state information, CSI) to multiple network devices within the time unit. In this way, there is a problem of multiplexing of multiple CSIs and multiple HARQs in the same time unit. Currently, the association relationship or multiplexing rule between CSI and HARQ needs to be configured through high-layer signaling. Moreover, the probability of CSI being discarded is very high, and normal transmission of CSI cannot be guaranteed. Therefore, how to ensure the normal transmission of CSI when CSI and HARQ are multiplexed has become an urgent problem to be solved at present.

SUMMARY OF THE INVENTION

The present application provides a method and a communication device for information transmission. In multi-site cooperative transmission, normal transmission of CSI can be ensured by changing the association relationship between CSI and HARQ. Improve communication efficiency.

In a first aspect, a method for information transmission is provided, and the execution body of the method can be either a terminal device or a chip applied to the terminal device. The method includes: determining channel state information CSI transmitted in a first time unit, a first hybrid automatic repeat request HARQ and a second HARQ, where the first HARQ is feedback information of data scheduled by the first downlink control information DCI , the second HARQ is the feedback information of the data scheduled by the second DCI; determine the first uplink control information UCI and the second UCI, the first UCI includes the first HARQ and the CSI, and the second UCI includes the second UCI HARQ and the CSI; sending at least one of the first UCI and the second UCI.

The method for information transmission provided by the first aspect, by changing the association relationship between CSI and HARQ, makes CSI and all HARQs in the time unit for transmitting CSI are associated, that is, CSI and all HARQs in the time unit for transmitting CSI can be Multiplexing forms UCI. The normal transmission of CSI can be guaranteed. Improve communication efficiency.

In a possible implementation manner of the first aspect, the first physical uplink control channel PUCCH is used to carry the first UCI, and the second PUCCH is used to carry the second UCI, when the first PUCCH and the second PUCCH are When the fields overlap, the method further includes: discarding the second UCI; wherein, the number of symbols occupied by the second UCI is less than the number of symbols occupied by the first UCI, or the second UCI includes an ACK/Negative acknowledgment The number of response NACK bits is less than the number of ACK/NACK bits included in the first UCI, or the number of ACK bits included in the second UCI is less than the number of ACK bits included in the first UCI, or the number of bits included in the second UCI Less than the number of bits of the first UCI.

In a possible implementation manner of the first aspect, the method further includes: determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI; and according to the second DCI and the second UCI , determining a second PUCCH in the second PUCCH resource set, the first PUCCH resource set and the second PUCCH resource set do not overlap in the time domain; the sending at least one of the first UCI and the second UCI, including : send the first UCI on the first PUCCH, and/or send the second UCI on the second PUCCH. In this implementation manner, the correct transmission of the first HARQ can be ensured, and the transmission efficiency of the HARQ is further improved.

In a possible implementation manner of the first aspect, the method further includes: receiving indication information, where the indication information is used to indicate that the CSI is associated with the first HARQ and the second HARQ.

In a possible implementation manner of the first aspect, the first control resource set is used to carry the first DCI, the second control resource set is used to carry the second DCI, the first control resource set and the second control resource The sets are different, and the CSI is associated with the first control resource set and the second control resource set.

In a possible implementation manner of the first aspect, the indication information is further used to indicate that the CSI is associated with the first control resource set and the second control resource set. Wherein, each bit field field value in the indication information corresponds to one or a group of different CORESET index values, or the index values of the CORESET group, and may also correspond to the index values of all CORESETs in a BWP or a carrier, for example, a CORESET 0 and CORESET 1 are configured in the BWP, the bit '00' of the indication information may indicate CORESET 0, '01' may indicate CORESET 1, and '10' may indicate CORESET 0 and CORESET 1. Then the terminal device determines the HARQ bits that can be combined with the CSI according to the association indication information, so that after combining, a bitmap can be formed and carried on a PUCCH resource. For example, if the indication information indicates '10', the CSI can be received with CORESET 0. The HARQ combination corresponding to the received DCI may also be combined with the HARQ corresponding to the DCI received on CORESET 1 .

Optionally, the indication information can also be a CORESET group index value, that is, each CORESET configuration includes an index value representing a CORESET group, and CORESETs with the same index value mean they belong to the same group, then the CORESET received on the same group CORESET. The HARQ corresponding to the DCI can be combined. The CORESET group index value is configured in the CSI configuration information, indicating that the CSI bits can be combined with the HARQ bits corresponding to the DCI detected on the control resource set corresponding to the configured CORESET or CORESET group. The UCI bits are carried on one PUCCH resource.

In a possible implementation manner of the first aspect, the third PUCCH carrying the CSI and the fourth PUCCH carrying the first HARQ overlap in the time domain, and the third PUCCH and the fifth PUCCH carrying the second HARQ overlap overlap in the time domain; alternatively, the third PUCCH and the fourth PUCCH do not overlap in the time domain, and it is determined that the first UCI is multiplexed on the fourth PUCCH; alternatively, the third PUCCH and the fifth PUCCH are at the same time The domains do not overlap, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

In a second aspect, a method for information transmission is provided, and the execution body of the method can be either a network device or a chip applied to the network device. The method includes: determining channel state information CSI transmitted in a first time unit, a first hybrid automatic repeat request HARQ and a second HARQ, where the first HARQ is feedback information of data scheduled by the first downlink control information DCI , the second HARQ is the feedback information of the data scheduled by the second DCI; determine the first uplink control information UCI and the second UCI, the first UCI includes the first HARQ and the CSI, and the second UCI includes the second UCI HARQ and the CSI; receiving at least one of the first UCI and the second UCI.

In the method for information transmission provided by the second aspect, in the cooperative transmission between sites, by changing the association relationship between CSI and HARQ, CSI is associated with all HARQs in the time unit for transmitting CSI, that is, CSI and the time unit for transmitting CSI are associated. All HARQs can be multiplexed to form UCI. The normal transmission of CSI can be guaranteed. Improve communication efficiency.

In a possible implementation manner of the second aspect, the first physical uplink control channel PUCCH is used to carry the first UCI, and the second PUCCH is used to carry the second UCI, when the first PUCCH and the second PUCCH are When the domain overlaps, the method further includes: receiving the first UCI; wherein the number of symbols occupied by the first UCI is more than the number of symbols occupied by the second UCI, or the first UCI includes an ACK/Negative acknowledgment The number of response NACK bits is more than the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is more than the number of ACK bits included in the second UCI, or the number of bits in the first UCI More than the number of bits of the second UCI.

In a possible implementation manner of the second aspect, the method further includes: determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI; and according to the second DCI and the second UCI , determining a second PUCCH in the second PUCCH resource set, the first PUCCH resource set and the second PUCCH resource set do not overlap in the time domain; the receiving at least one of the first UCI and the second UCI, including : receive the first UCI on the first PUCCH, and/or send the second UCI on the second PUCCH.

In a possible implementation manner of the second aspect, indication information is sent, where the indication information is used to indicate that the CSI is associated with the first HARQ and the second HARQ.

In a possible implementation manner of the second aspect, the first control resource set is used to carry the first DCI, the second control resource set is used to carry the second DCI, and the first control resource set and the second control resource The sets are different, and the CSI is associated with the first control resource set and the second control resource set.

In a possible implementation manner of the second aspect, the indication information is further used to indicate that the CSI is associated with the first control resource set and the second control resource set.

In a possible implementation manner of the second aspect, the third PUCCH carrying the CSI and the fourth PUCCH carrying the first HARQ overlap in the time domain, and the third PUCCH and the fifth PUCCH carrying the second HARQ overlap overlap in the time domain; or,

The third PUCCH and the fourth PUCCH do not overlap in the time domain, and it is determined that the first UCI is multiplexed on the fourth PUCCH; or,

The third PUCCH and the fifth PUCCH do not overlap in the time domain, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

In a third aspect, a communication device is provided, comprising a unit for performing each step of the method in any one of the above-mentioned first aspect to the second aspect and each implementation manner thereof.

In one design, the communication device is a communication chip, and the communication chip may include an input circuit or interface for sending information or data, and an output circuit or interface for receiving information or data.

In another design, the communication device is a communication device (eg, terminal device or network device), and the communication chip may include a transmitter for sending information or data, and a receiver for receiving information or data.

In a fourth aspect, a terminal device is provided, including a transceiver, a processor and a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the terminal device executes the first aspect or any possible implementation manner of the first aspect method in . Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

In a fifth aspect, a network device is provided, including a transceiver, a processor and a memory. The processor is used to control the transceiver to send and receive signals, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the network device executes the second aspect or any possible implementation manner of the second aspect method in . Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

In a specific implementation process, the above-mentioned processor may be used to perform, for example, but not limited to, baseband related processing, and the receiver and the transmitter may be used to perform, for example, but not limited to, radio frequency transceiving. The above-mentioned devices can be arranged on chips that are independent of each other, or at least part or all of them can be arranged on the same chip. For example, the receiver and the transmitter can be arranged on the receiver chip and the transmitter chip that are independent of each other. It can be integrated as a transceiver and then disposed on the transceiver chip. For another example, the processor may be further divided into an analog baseband processor and a digital baseband processor, wherein the analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be combined with a variety of application processors (such as but not limited to graphics processors, multimedia processors, etc.) integrated on the same chip. Such a chip may be referred to as a system on chip. Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the specific needs of product design. The embodiments of the present application do not limit the specific implementation form of the above device.

In a sixth aspect, a processor is provided, including: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the first aspect and the second aspect and any possible implementations of the first aspect and the second aspect method in .

In a specific implementation process, the above-mentioned processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits. The input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver, the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter, and the input circuit and output The circuit can be the same circuit that acts as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.

In a seventh aspect, a processing apparatus is provided, including: a memory and a processor. The processor is configured to read the instructions stored in the memory, and can receive signals through a receiver and transmit signals through a transmitter to perform the first aspect and the second aspect and any possibility of the first aspect and the second aspect method in the implementation.

Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

In a specific implementation process, the memory may be a non-transitory memory, such as a read only memory (ROM), which may be integrated with the processor on the same chip, or may be separately provided in different On the chip, the embodiment of the present application does not limit the type of the memory and the setting manner of the memory and the processor.

In an eighth aspect, a chip is provided, comprising a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program from the memory, and the computer program is used to implement the first aspect and the second Aspects and methods in any of the possible implementations of the first and second aspects.

In a ninth aspect, a computer program product is provided, the computer program product comprising: a computer program (also referred to as code, or instructions), which, when the computer program is executed, causes a computer to execute the above-mentioned first aspect and the first The method of the second aspect and any one of the possible implementations of the first aspect and the second aspect.

In a tenth aspect, a computer-readable medium is provided, the computer-readable medium stores a computer program (also referred to as code, or instruction), when it is run on a computer, causing the computer to execute the above-mentioned first aspect and the first aspect. The method of the second aspect and any one of the possible implementations of the first aspect and the second aspect.

Description of drawings

FIG. 1 is a schematic diagram of data scheduling using one DCI in an ideal backhaul scenario in multi-site cooperative transmission.

FIG. 2 is a schematic diagram of another example of data scheduling using one DCI in an ideal backhaul scenario in multi-site cooperative transmission.

FIG. 3 is a schematic diagram of data scheduling using two DCIs in an ideal backhaul scenario in multi-site cooperative transmission.

FIG. 4 is a schematic diagram of data scheduling using two DCIs in a non-ideal backhaul scenario in multi-site cooperative transmission.

FIG. 5 is a schematic interaction diagram of a method for transmitting information according to an embodiment of the present application.

FIG. 6 is a schematic interaction diagram of a method for transmitting information according to another embodiment of the present application.

FIG. 7 is a schematic interaction diagram of methods for information transmission according to some embodiments of the present application.

FIG. 8 is a schematic interaction diagram of a method for transmitting information according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 10 is another schematic block diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 11 is a schematic block diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 12 is another schematic block diagram of a communication apparatus provided by an embodiment of the present application.

FIG. 13 is a schematic block diagram of a terminal device provided by an embodiment of the present application.

FIG. 14 is another schematic block diagram of a network device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the present application will be described below with reference to the accompanying drawings.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (Wideband) system Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (Time Division Duplex, TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, future fifth generation (5th Generation, 5G) system or new Wireless (New Radio, NR) and so on.

The terminal device in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication function Handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or terminals in the future evolved Public Land Mobile Network (PLMN) equipment, etc., which are not limited in this embodiment of the present application.

The network device in this embodiment of the present application may be a device used to communicate with a terminal device, and the network device may be a Global System of Mobile communication (GSM) system or a Code Division Multiple Access (Code Division Multiple Access, CDMA). It can also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station (Evolutional NodeB) in an LTE system. , eNB or eNodeB), it can also be a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network device can be a relay station, an access point, an in-vehicle device, a wearable device, and future 5G The network equipment in the network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiments of the present application.

In the Long Term Evolution LTE/Enhanced Long Term Evolution (LTE-advanced, LTE-A)/NR system defined by the 3rd Generation Partnership Project (3GPP), the downlink multiple access method usually adopts Orthogonal Frequency Division Multiple Access (OFDMA) method. The downlink resources are divided into multiple orthogonal frequency division multiple access (orthogonal frequency division multiple access, OFDM) symbols in terms of time (time domain), and are divided into multiple subcarriers in terms of frequency (frequency domain). Part of the time-frequency resources in the downlink is used to carry a physical downlink control channel (PDCCH). The PDCCH is used to carry downlink control information (DCI). DCI is control information in a physical layer (Physical Layer) that a network device instructs a user equipment (user equipment, UE) behavior. At the same time, high-layer signaling can also be used by the network device to indicate UE behavior. High-layer signaling is indication information higher than the physical layer for controlling and managing related UEs, for example, radio resource control (radio resource control, RRC) signaling and the like. Some time-frequency resources in the downlink are used to carry a physical downlink shared channel (PDSCH). The PDSCH is used to carry data for interaction between the user equipment and the network equipment, and is shared by all user equipments accessing the network system.

Before the network device performs data transmission, the network device needs to notify the terminal device to receive data in a specific receiving manner on a specific time-frequency resource through DCI for downlink scheduling. Before the terminal device performs data transmission, the network device needs to notify the terminal device through DCI to send data in a specific sending manner on a specific time-frequency resource. The information bits of the DCI are sent to the channel coding module to complete rate matching, and then the control information bits are modulated according to specific criteria (such as quadrature phase shift keying (QPSK)), and finally mapped to the time-frequency domain The PDCCH is formed on the resource. The network device needs to notify the terminal device to send data in a specific transmission manner on a specific time-frequency resource through the DCI used for uplink scheduling.

The time-frequency resources occupied by the PDCCH are usually configured through high-layer signaling or through system messages. In the configuration process, a control-resource set (control-resource set, CORESET) is used as a configuration unit. The information bits of the DCI indicated by the network equipment to the terminal equipment (used to schedule the terminal equipment to receive PDSCH/transmit PUSCH) are all carried on the PDCCH, or it can be understood that the information bits of the DCI are carried on the time-frequency resources occupied by the PDCCH. CORESET can be understood as: some specific time-frequency resources are used to carry DCI signaling on the time-frequency resources in the system, and these specific time-frequency resources will be notified to the terminal equipment through high-level signaling in advance, so that the terminal equipment can specify the specific time-frequency resources in the future. The DCI signaling is detected on the specific time-frequency resource at the detection time of each. The control resource set includes the time-frequency resource information occupied by the network device for sending the PDCCH. The network device can configure one or more control resource sets for the terminal device, and the network device can send messages to any control resource set corresponding to the terminal device. The terminal equipment transmits the PDCCH.

个RB，包含的RB数和位置通过高层信令配置。控制资源集合的频域资源配置方式是通过以6个RB为粒度的位图(bitmap)指示，通常情况下，一个CORESET是在一段系统带宽内指示的。同时，CORESET在时域上的定义通常在一个slot内包含

个OFDM符号，

的取值可以为1，2，3。一个CORESET所包含的OFDM符号数和位置通过高层信令配置。例如，对于时隙(slot)级别的调度而言，CORESET通常处于一个slot的前3个OFDM符号上，对于非时隙(non-slot)级别(调度的时域资源小于一个slot)的调度而言，CORESET可以处于一个slot内的任意位置。一个终端设备可以被配置多个CORESET，每一个CORESET可以配置索引号(索引值)。其中，CORESET索引值0通常用于承载系统消息。CORESET索引的配置信息也由系统消息或者高层信令通知，其他的CORESET通常用于承载小区公共的DCI(用于指示小区公用的控制消息)或者终端设备特定的DCI(例如用于调度单一传播(unicast)的PDSCH/PUSCH)。每一个CORESET可能由一个服务小区内的多个终端设备共享(由网络设备实现相应的调度)。这些共享的终端设备可以在该CORESET指示的时频资源上接收网络设备发送的PDCCH，并根据PDCCH向网络设备发送数据或者接收网络设备发送的数据。A control resource set contains in the frequency domain

RBs, and the number and location of the RBs included are configured through high-layer signaling. The frequency domain resource configuration mode of the control resource set is indicated by a bitmap (bitmap) with 6 RBs as the granularity. Generally, one CORESET is indicated within a segment of system bandwidth. At the same time, the definition of CORESET in the time domain is usually contained in a slot

OFDM symbols,

The value can be 1, 2, 3. The number and position of OFDM symbols included in a CORESET are configured by high-level signaling. For example, for slot-level scheduling, CORESET is usually located in the first three OFDM symbols of a slot, and for non-slot (non-slot)-level scheduling (time domain resources scheduled are less than one slot) In other words, CORESET can be in any position within a slot. A terminal device can be configured with multiple CORESETs, and each CORESET can be configured with an index number (index value). Among them, the CORESET index value 0 is usually used to carry system messages. The configuration information of the CORESET index is also notified by system messages or high-level signaling. Other CORESETs are usually used to carry cell-common DCI (used to indicate cell-common control messages) or terminal equipment-specific DCI (for example, for scheduling unicast ( unicast) PDSCH/PUSCH). Each CORESET may be shared by multiple terminal devices in a serving cell (corresponding scheduling is implemented by the network device). These shared terminal devices can receive the PDCCH sent by the network device on the time-frequency resource indicated by the CORESET, and send data to the network device or receive data sent by the network device according to the PDCCH.

The terminal equipment informs the base station whether the downlink data is correctly received through the feedback mechanism of hybrid automatic repeat request (HARQ). The terminal equipment feeds back the HARQ acknowledgement (ACK)/negative acknowledgement (NACK) information corresponding to the downlink data. For example, if the terminal correctly demodulates the downlink data, the ACK information corresponding to the downlink data is fed back to the base station through the PUCCH. , if the terminal fails to demodulate the downlink data correctly, the NACK information corresponding to the downlink data is fed back to the base station through the PUCCH, so that the base station can perform retransmission scheduling. Currently, the terminal equipment uses physical uplink control channel (physical uplink control channel, PUCCH) resources to feed back ACK/NACK within one time unit. Specifically, the PUCCH will carry the ACK/NACK signaling corresponding to each PDSCH/each transport block (transport block, TB), and each TB corresponds to an ACK/NACK bit, which is used to indicate whether the TB is received correctly. The ACK/NACK bit is 0, indicating NACK, that is, the corresponding TB is not correctly received. If the ACK/NACK bit is 1, it means ACK, that is, the corresponding TB is correctly received. According to the HARQ codebook (codebook), the terminal device will determine that the ACK/NACK bits of multiple PDSCH/TB may be jointly carried on the same PUCCH. For example, the HARQ feedback corresponding to the PDSCHs scheduled by multiple DCIs at different times are located in the same PUCCH. In the time slot, multiple HARQ feedback bits are combined to form a bitmap and carried on the same PUCCH.

In addition to carrying HARQ, PUCCH resources can also carry terminal equipment feedback channel state information (Channel State Information, CSI). The network equipment will configure at least one CSI reporting configuration set, and the configuration set may include: CSI reference signal (CSI reference signal). reference signal, CSI-RS) resource configuration information, CSI measurement and reporting methods, CSI reporting content, and PUCCH resources used for CSI reporting. Generally, the CSI carried on the PUCCH is periodic or semi-static, that is, a CSI reporting period is configured, and the terminal device periodically transmits the CSI on the corresponding PUCCH resource.

The PUCCH resource can also carry a scheduling request (Scheduling request, SR) sent by the terminal device, and the network device can allocate transmission resources to the terminal device according to the SR.

The terminal device can carry one or more of CSI, HARQ and SR through uplink control information (UCI), that is, the terminal device can jointly encode multiple of CSI, HARQ and SR to form UCI, and use UCI sent to the network device.

Currently, the network device configures a maximum of 4 PUCCH resource sets (PUCCH resource sets) for the terminal device through radio resource control (radio resource control, RRC) signaling, and each PUCCH resource set includes multiple PUCCH resources. The configuration parameters of each PUCCH resource set may include: PUCCH resource setID, the maximum number of UCI bits, and a PUCCH resource list (list).

If the terminal device transmits 0 _UCI UCI bits, and the UCI includes HARQ-ACK bits, the terminal device will determine the PUCCH resource set used by the time slot (slot) in which the UCI is currently sent. Specifically, a corresponding UCI bit value interval is configured in each PUCCH resource set, and the terminal device determines which PUCCH resource set to use according to the number of UCI bits actually reported at the current moment:

For pucch-ResourceSetId=0, the UCI bit value interval is O _UCI ≤ 2, which includes 1 or 2 HARQ-ACK bits, and an SR request (SR is 0 or 1 bit) transmitted simultaneously with the HARQ-ACK bits.

For pucch-ResourceSetId=1, the UCI bit value interval is 2<0 _UCI ≤N ₂ , where N ₂ is the maximum number of UCI bits configured in PUCCH resource set1.

For pucch-ResourceSetId=2, the UCI bit value interval is N ₂ <O _UCI ≤N ₃ , where N ₃ is the maximum number of UCI bits configured in PUCCH resource set2.

For pucch-ResourceSetId=3, the UCI bit value interval is N ₃ <O _UCI ≤1706.

The configuration parameters of each PUCCH resource may include: PUCCH resource ID, PUCCH resource format (format), and PUCCH resource.

The 3-bit indication information in the DCI is used to instruct the terminal device to select one PUCCH resource among the multiple PUCCH resources configured in the RRC signaling to carry the feedback information of the data scheduled by the DCI.

Currently, within a specific bandwidth (such as within a carrier), the terminal device does not expect to send multiple PUCCHs at the same time. If multiple PUCCH resources overlap in the time domain, multiplexing between multiple PUCCH resources will be defined. (multiplexing) criterion or dropping (dropping) criterion.

For example: when multiple PUCCH resources carrying CSI overlap in the time domain within a slot, the multiple CSIs will be combined to form one CSI and carried on one PUCCH according to a pre-agreed mode. The combining method is as follows: combining multiple CSIs code sequentially. If a PUCCH resource for carrying the CSI is configured for each CSI, the CSI of the corresponding overlap is prioritized, and only the CSI with the highest priority is transmitted. If each CSI is configured with multiple PUCCH resources for carrying the CSI, determine a PUCCH resource for transmission from the configured multiple PUCCH resources according to the number of bits of the CSI, and the determination method is: determine the total number of bits of the multiple CSI, If there is no PUCCH resource that can be borne, the CSI with lower priority is discarded and the total number of bits is re-determined until there is just one PUCCH resource that can be borne.

Further, when the PUCCH resources that carry CSI, the PUCCH resources that carry HARQ, and the PUCCH resources that carry SR overlap in the time domain in the same time slot, the RU also needs to transmit CSI, HARQ and SR in one time slot. Consider the issue of reuse. Specifically, the number of bits of the UCI and the corresponding PUCCH resource can be determined according to the following formula.

The terminal device determines the used PUCCH resource set according to the PUCCH resource indicated in the latest DCI and based on the number of UCI bits.

则终端设备发送的UCI(包括HARQ-ACK、SR和CSI)承载于

中最少的RB数的

并且满足

If:

Then the UCI (including HARQ-ACK, SR and CSI) sent by the terminal equipment is carried in the

The least number of RBs in

and satisfy

CSI中根据预先定义的CSI优先级原则选择

CSI,并且保证：Otherwise, the end device from

CSI is selected according to the pre-defined CSI priority principle

CSI, and guarantees:

并且满足：

and satisfy:

Among them, O _ACK represents the number of bits of HARQ-ACK.

O _SR represents the number of bits of SR.

O_CSI-Part1,n为具有优先级n的CSI的Part1-CSI,O_CSI-Part2,n为具有优先级n的CSI的Part2-CSI。

为所有重叠的CSI的个数。

O _CSI-Part1,n is Part1-CSI of CSI with priority n, and O _CSI-Part2,n is Part2-CSI of CSI with priority n.

is the number of all overlapping CSIs.

O _CRC =O _{CRC, CSI-Part1} +O _{CRC, CSI-Part2} , wherein O _{CRC, CSI-Part1} are cyclic redundancy check (Cyclic Redundancy Check, CRC) bits that encode HARQ-ACK, SR and Part1-CSI number, O _{CRC, CSI-Part2} is the number of CRC bits for encoding Part2-CSI.

r is the code rate of PUCCH.

为PUCCH占用的物理资源块(physical resource block,PRB)数量。

The number of physical resource blocks (PRBs) occupied by the PUCCH.

对于PUCCH format3,

对于PUCCH格式format 4,

其中，

每个RB内的子载波的数量(anumber of subcarriers per RB)。For PUCCH format (format) 2,

For PUCCH format3,

For PUCCH format format 4,

in,

A number of subcarriers per RB.

为PUCCH占用的符号数。

Number of symbols occupied by PUCCH.

Q _m =1, indicating that the modulation method is pi/2-BPSK, and Q _m =2, indicating that the modulation method is binary phase shift keying (BPSK).

According to the above formula, for the multiplexed transmission of CSI, HARQ and SR in one time slot, the PUCCH resource set for transmitting the UCI (including HARQ-ACK, SR and CSI) can be determined, and determined according to the PUCCH resources indicated by DCI A PUCCH resource is determined from the determined PUCCH resource set, and the PUCCH resource of the UCI is transmitted on the PUCCH resource. If the number of bits that the PUCCH resource can bear is less than the number of bits of the UCI, the CSI is discarded according to the priority of the CSI until the PUCCH resource can bear the UCI.

In downlink transmission, a terminal device can communicate with multiple network devices at the same time, that is, one terminal device can receive data from multiple network devices at the same time. This transmission mode is called coordinated multiple points transmission/reception (CoMP). . Multiple network devices form a cooperative set to communicate with the terminal device at the same time. The network devices in the cooperative set can be connected to different control nodes, and each control node can exchange information. For example, each control node exchanges scheduling policy information to achieve Purpose of collaborative transmission. Alternatively, the network devices in the cooperating set are all connected to the same control node, and the control node receives state information (eg, channel state information (CSI) or reference signal) reported by terminal devices collected by multiple network devices in the cooperating set Received power (reference signal received power, RSRP), and according to the state information of all the terminal equipment in the cooperative set, the terminal equipment in the cooperative set is uniformly scheduled, and then the scheduling policy is exchanged to the network equipment connected to the terminal equipment. The network equipment notifies the respective terminal equipment through the DCI signaling carried by the PDCCH. According to the data transmission strategy division of a plurality of network equipment in the cooperative set to a certain terminal equipment, the CoMP transmission mode includes the following three types:

The first: dynamic point switching (DPS) mode: for a terminal device, the network device that performs data transmission with the terminal device is dynamically switched at different transmission times, so as to try to select the current Data transmission is performed between the network device with better channel conditions and the terminal device. That is, multiple network devices transmit data with a terminal device in a time-sharing manner.

The second type: coherent joint transmission (C-JT) mode: multiple network devices simultaneously transmit data with a certain terminal device, and the antennas of the multiple network devices perform joint precoding. That is, the optimal precoding matrix is selected to perform joint phase and amplitude weighting among the antennas of multiple network devices. The coherent transmission mechanism requires accurate phase calibration of the antennas of multiple network devices so that accurate phase weighting is performed between multiple groups of antennas.

The third type: non-coherent joint transmission (NC-JT) mode: multiple network devices simultaneously transmit data with a certain terminal device, and the antennas of the multiple network devices perform independent precoding. That is, each network device independently selects the optimal precoding matrix to perform joint phase and amplitude weighting between the antennas of the network device, and the incoherent transmission mechanism does not require accurate phase calibration of the antennas of multiple network devices.

According to the magnitude of the information exchange delay between network devices in the cooperation set, the scenarios of CoMP transmission can be divided into ideal backhaul (ideal backhaul) scenarios and non-ideal backhaul (non-ideal backhaul) scenarios.

An ideal backhaul scenario and a non-ideal backhaul scenario will be briefly introduced below.

For ideal backhaul scenarios, the interaction delay between network devices is negligible due to the short distance between network devices or between network devices and control nodes, or relying on fiber connections with low transmission loss . In this case, the interaction between network devices is a dynamic real-time interaction process. A cooperation mechanism that can usually be assumed is that a central scheduling node (control node) exists in the network devices in the cooperation set to perform joint resource scheduling on all terminal devices in the multiple network devices. The network device is responsible for receiving the CSI and scheduling request information fed back by the terminal device and sending it back to the central scheduling node. The serving network device in the cooperation set (for example, serving transmission reception point, Serving TRP) issues control information DCI to the terminal device. According to the scheduling policy, the data of the terminal device is delivered by the Serving TRP, or jointly delivered by the Serving TRP and a cooperative network device (for example, a coordinate transmission reception point (coordinate TRP) (coordinated transmission).

For an ideal backhaul (ideal backhaul) scenario, the data scheduling indication may be performed in the form of one DCI. As shown in FIG. 1 , FIG. 1 shows a schematic diagram of data scheduling by using one DCI in an ideal backhaul scenario. Assuming that TRP1 acts as a serving TRP (ie, serving base station), TRP1 is responsible for delivering DCI1 to the terminal device, where the DCI1 is used to notify the time-frequency resources occupied by the data sent to the terminal device and the transmission mode. TRP2 is a cooperative TRP, and the data of the terminal device is jointly delivered by TRP1 and TRP2. The data sent by TRP1 is PDSCH1, and the data sent by TRP2 is PDSCH2. The transmission mode includes the number of transmission layers used to transmit the data, the modulation and coding mode of each codeword (codeword), and reception beam indication information, and the like. A codeword corresponds to a specific one or more transmission layers, each codeword corresponds to an independent modulation and coding mode, and can be dynamically indicated to be enabled or disabled. For example, in the example shown in Figure 1, two TRPs each use one layer to transmit downlink data, and two codewords are enabled in DCI1 sent by TRP1, and each codeword corresponds to a specific transmission layer (different in the standard). The ports correspond to different transport layer implementations) and a specific receive beam indication. That is, one code can correspond to one TRP. FIG. 2 is a schematic diagram illustrating another example of data scheduling by using one DCI in an ideal backhaul scenario. As shown in Figure 2, TRP1 uses 2 layers to transmit downlink data, then a codeword is enabled in DCI1, and the codeword corresponds to the 2 specific transmission layers and the receiving beam indication used by TRP1. It should be understood that different codewords may be sent by the same TRP (single TRP transmission mode), or may be sent by different TRPs. That is to say, each codeword may correspond to one TRP (CoMP transmission mode). Figure 2 shows a single TRP transmission mode.

For an ideal backhaul (ideal backhaul) scenario, the data scheduling indication may also be performed in the manner of two DCIs. FIG. 3 shows a schematic diagram of data scheduling using two DCIs in an ideal backhaul scenario. As shown in FIG. 3 , the two DCIs (DCI1 and DCI2) may be sent by two TRPs respectively, or may be sent by the same TRP. Each DCI corresponds to a time-frequency resource allocation indication and a transmission mode indication of a codeword, that is, each DCI corresponds to one TRP. In this case, the terminal equipment is required to detect two DCIs simultaneously, and simultaneously receive PDSCHs sent by two TRPs according to the two DCIs obtained by detection and decoding. Compared with using only one DCI to schedule two PDSCHs, using two DCIs to schedule two PDSCHs can improve the flexibility of scheduling without increasing the DCI bit length.

For non-ideal backhaul (non-ideal backhaul) scenarios, the interaction delay between network devices (taking TRP as an example) will cause performance loss, and the interaction delay between network devices cannot be ignored. Therefore, in this scenario, two TRPs are usually used to deliver one DCI each for data scheduling. In this case, only semi-static exchange of scheduling information is required between the two TRPs or between the two TRPs and the control node. Each DCI can at least independently indicate resource allocation information, the modulation and coding mode of the corresponding codeword, and the corresponding transmission layer. FIG. 4 shows a schematic diagram of data scheduling using two DCIs in a non-ideal backhaul scenario. As shown in FIG. 4 , TRP1 sends DCI1 to the terminal device for scheduling the transmission of PDSCH1. TRP2 sends DCI2 to the terminal device for scheduling the transmission of PDSCH2. Each DCI corresponds to a codeword. It should be understood that if the terminal device detects only one DCI in a certain detection period (for example, a slot), the current transmission is a single TRP transmission. If the terminal equipment detects two DCIs in a certain detection period (for example, a slot) In the case of DCI, the current transmission is multi-TRP transmission.

It should be noted that, for the above ideal backhaul (ideal backhaul) scenario and non-ideal backhaul (non-ideal backhaul) scenario one DCI or multiple DCIs, both refer to a certain time period (such as a DCI). slot, or the terminal equipment-specific DCI used for scheduling downlink data within one DCI detection period of the terminal equipment. At the same time, the data scheduled by these DCIs may occupy the same or part of the same time-frequency resources, and these DCIs are considered as indications in the cooperative transmission mode. Currently, NR supports two types of DCI for scheduling downlink data. One is a compact DCI format, which only contains fields necessary for scheduling data, and the other is a common DCI format, which contains more fields for scheduling data. The length of the DCI format is generally greater than that of the compact DCI format. In addition to the DCI for scheduling downlink data, the network device can also issue a common search space set (common search space, CSS). Specifically, within the DCI detection period, the terminal device can detect one DCI or multiple DCIs used for scheduling downlink data, and can also detect system messages, reference signal (reference signal, RS) triggering information, frame structure Common DCI such as indication information. When configuring the detection behavior of the terminal device, the network device configures multiple DCI formats in the configuration parameters of the search space, and the terminal device performs multiple DCI blind detection attempts according to the multiple DCI format configuration information.

In the carrier aggregation (CA) mechanism, the network device can also send its own DCI on each carrier, so the terminal device also needs to have the detection capability of simultaneously detecting multiple DCIs in a certain detection time period.

For example, taking two DCIs in a non-ideal backhaul scenario as an example,

The HARQs corresponding to multiple (take two as an example) DCI-scheduled PDSCHs are fed back to their respective TRPs to avoid interaction delay. Then, the terminal equipment needs to distinguish two DCIs at different times, so as to determine the number of HARQ bits fed back to the respective TRPs. For example, the terminal device detects DCI 1 and DCI 2 at time 1, detects DCI 3 and DCI 4 at time 2, and the above-mentioned DCI 1 to DCI 4 are all fed back at time 3. Among them, DCI 1 and 3 are issued by TRP 1, and DCI 2 and 4 are issued by TRP 2. If it is expected that the HARQ bits corresponding to DCI1 and DCI 3 are jointly coded and fed back to TRP 1 at time 3, and the HARQ bits corresponding to DCI 2 and 4 are jointly coded and fed back to TRP 2 at time 3, the terminal device needs to know that DCIs at different times correspond to the same TRP. The corresponding methods of DCI and TRP can be as follows:

The first: predefine different CORESETs corresponding to different TRPs. For example, if both DCI 1 and DCI 3 are detected in CORESET 1, and both DCI 2 and DCI 4 are detected in CORESET, the terminal device can specify the HARQ corresponding to DCI 1 and DCI 3 and feed it back to TRP 1, DCI 2 and DCI 4 The corresponding HARQ is fed back to TRP 2.

The second type: Group PUCCH resources in advance, and each TRP can only indicate/configure PUCCH resources in a certain group. For example, DCI 1 and DCI 3 indicate that PUCCH resource group 1 corresponds to TRP 1, and DCI 2 and DCI 4 indicate PUCCH resource groups. 2 corresponds to TRP 2. When the terminal device detects the DCI, it can know which TRP the DCI belongs to and is sent.

The third type: a certain field in the DCI indicates the information representing the TRP. For example, this field in DCI 1 and DCI 3 indicates that TRP 1 is represented, and this field in DCI 2 and 4 indicates that TRP 2 is represented. When the terminal device detects the DCI, it can know which TRP the DCI belongs to and is sent.

Based on this, an association relationship between the PUCCH resource carrying CSI and the TRP is further established. For example, the CSI reporting setting (reporting setting) is associated with the CORESET ID, and specifies that the CSI only performs multiplexing on the HARQ of the DCI corresponding to the associated CORESET ID. The terminal device determines the UCI bits corresponding to each TRP respectively according to the association relationship. Specifically, based on the number of bits of the HARQ/SR corresponding to the TRP and the CSI corresponding to the TRP, the terminal device can determine whether the CSI and HARQ corresponding to each TRP are multiplexed, the number of UCI bits obtained after multiplexing, and the PUCCH resource for sending the UCI. If the HARQ overlaps with the non-associated CSI, the CSI is dropped (drop). For example, DCI 1 corresponds to HARQ1, and DCI 2 corresponds to HARQ 2. If CSI 2 is pre-configured to associate with DCI 1, and CSI 1 is associated with DCI 2, CSI 2 and HARQ 1 will be multiplexed to form UCI 1, and CSI 1 and HARQ 2 will be multiplexed. Use to form UCI 2.

Currently, the association between CSI and HARQ/DCI needs to be configured through high-layer signaling. For example, after multiple CORESETs are configured in high-layer signaling, the corresponding CORESET IDs are configured to different CSIs. This configuration method will increase signaling overhead and design complexity. At the same time, this configuration will increase the probability of CSI being discarded. For example, assuming that the configured CSI 1 and CSI 2 are both associated with DCI 2 in advance, if only HARQ 1 corresponding to DCI 1 is transmitted in the slot fed back by CSI 1 and CSI 2, all CSI is discarded, and the CSI cannot be guaranteed. In normal transmission, since the normal transmission of CSI cannot be guaranteed, the quality and efficiency of communication will be reduced. Moreover, even if there is HARQ2 transmission corresponding to DCI 2 in the slot fed back by CSI 1 and CSI 2, since the PUCCH resources of HARQ 2 may overlap with the PUCCH resources of HARQ 1, when HARQ 2 and HARQ 1 perform multiplexing, it is very likely that HARQ 2 will be discarded, and the transmission of HARQ 2 cannot be guaranteed, so the normal transmission of CSI cannot be guaranteed.

In view of this, the present application provides a method for information transmission. In multi-site cooperative transmission, by changing the association relationship between CSI and HARQ, CSI is associated with all HARQs in the time unit in which CSI is transmitted, that is, CSI and HARQ are associated with each other. All HARQs within a time unit for transmitting CSI can be multiplexed to form UCI. The normal transmission of CSI can be guaranteed. Improve communication efficiency.

The following describes the information transmission method provided by the present application in detail with reference to FIG. 5 . FIG. 5 is a schematic interaction diagram of the information transmission method 100 according to an embodiment of the present application. In the ideal backhaul (ideal backhaul) scenario and the non-ideal backhaul (non-ideal backhaul) scenario, of course, it can also be applied in other communication scenarios, which is not limited in this embodiment of the present application.

It should be understood that, in this embodiment of the present application, the method 100 is described by taking a terminal device and a network device as an example for executing each step in the method 100 . The network device may be the TRP shown in FIG. 5 . As an example but not a limitation, the execution subject of each step in the method 100 may also be a chip applied to a terminal device and a chip applied to a network device.

As shown in FIG. 5 , the method 100 includes S110 to S130.

S110, the terminal device and the network device determine the channel state information CSI transmitted in the first time unit, the first hybrid automatic repeat request HARQ and the second HARQ, where the first HARQ is data scheduled by the first downlink control information DCI The feedback information of the second HARQ is the feedback information of the data scheduled by the second DCI.

S120, the terminal device and the network device determine first uplink control information UCI and second UCI, where the first UCI includes the first HARQ and the CSI, and the second UCI includes the second HARQ and the CSI.

S130: The terminal device sends at least one of the first UCI and the second UCI to the network device.

Specifically, in the scenario of multi-site cooperative transmission, multiple network devices (TRP is used as an example below) will send DCI to the same terminal device for scheduling the transmission of data and the like between their respective TRPs and the terminal device. Take two TRPs as an example. The two TRPs send DCI to the terminal device respectively, the DCI sent by the first TRP to the terminal device is called the first DCI, and the DCI sent by the second terminal device to the TRP is called the second DCI. The first DCI is used to schedule the first PDSCH sent by the first TRP to the terminal device, and the second DCI is used to schedule the second PDSCH sent by the second TRP to the terminal device. When the terminal device receives the first PDSCH and the second PDSCH, it needs to feed back to the first TRP whether the first PDSCH is correctly received and whether the second PDSCH is correctly received to the second TRP through the HARQ mechanism. That is, the terminal device needs to feed back to the first TRP whether the ACK/NACK of the first PDSCH is correctly received (first HARQ), and the terminal device needs to feed back to the second TRP whether the ACK/NACK of the second PDSCH is correctly received (second HARQ) . Since the time domain resources for the terminal equipment to feed back HARQ are indicated by DCI. Therefore, the first HARQ and the second HARQ can be fed back to the first TRP and the second TRP within one time unit (eg, the same time slot). And, within this time unit, there may also be CSI(s) that need to be sent to the first TRP and the second TRP. therefore. In step S110, the terminal device and the network device determine the CSI and the first HARQ and the second HARQ transmitted in the same time unit. The first HARQ and the second HARQ are feedback information corresponding to PDSCHs sent by different TRPs. Specifically, the first HARQ is feedback information of data scheduled by the first DCI sent by the first TRP, and the second HARQ is feedback information of data scheduled by the second DCI sent by the second TRP.

In this application, the length of the first time unit may be one time slot, or may be less than or greater than one time slot. In this application, the length of one time unit is not limited. For example, one time unit may be one or more subframes; alternatively, one or more time slots; or one or more symbols. In this embodiment of the present application, a symbol is also called a time-domain symbol, which may be an orthogonal frequency division multiplexing (OFDM) symbol, or a single carrier frequency division multiple access (SC) symbol. -FDMA) symbol, wherein SC-FDMA is also called orthogonal frequency division multiplexing with transform precoding (orthogonal frequency division multiplexing with transform precoding, OFDM with TP).

in S120. The terminal device determines the first UCI and the second UCI. The first UCI includes the first HARQ and the CSI, and the second UCI includes the second HARQ and the CSI. That is, all CSI in the first time unit are multiplexed with all HARQs in the first time unit to form multiple UCIs, and each UCI includes the CSI. The network device may determine the first UCI and/or the second UCI. That is, the network device may determine only one of the first UCI and the second UCI, or the network device may determine the first UCI and the second UCI.

In S130, the terminal device may send at least one of the first UCI and the second UCI to the network device. Correspondingly, the network device receives at least one of the first UCI and the second UCI.

The method for information transmission provided by this application changes the association between CSI and HARQ, so that CSI is associated with all HARQs in the time unit for transmitting CSI, that is, CSI and all HARQs in the time unit for transmitting CSI can be complexed. Use to form UCI. The normal transmission of CSI can be guaranteed. Improve communication efficiency.

It should be understood that, in this embodiment of the present application, the CSI in the first time unit may also be multiplexed with only part of the HARQ in the first time unit. For example, the CSI in the first time unit may be pre-defined to be multiplexed with the actually transmitted HARQ in the first time unit. For example, define that the CSI is multiplexed with any one of the first HARQ and the second HARQ, where the first HARQ or the second HARQ is the HARQ that actually exists in the first time unit, that is, as long as there is a HARQ that needs to be fed back in the first time unit In HARQ, the CSI is multiplexed with any one or more of the HARQs, and it is not limited whether the CSI is multiplexed and transmitted with the first HARQ and the second HARQ. That is, the CSI may not be multiplexed with all HARQs in the first time unit.

It should also be understood that, in this embodiment of the present application, the number of CSIs in the first time unit may be one or multiple. That is, the above-mentioned CSI may be one CSI, or may be a collective name of multiple CSIs. If there is only one CSI in the first time unit, the CSI may be multiplexed with multiple HARQs respectively to form UCI. E.g. If there are multiple CSIs in the first time unit, it may be determined whether the PUCCH resources of all the CSIs overlap in the time domain according to the PUCCH resources of all the CSIs. If overlapping, all overlapping CSIs are multiplexed into one or more CSIs according to the priority order of the CSIs, and then the multiplexed one or more CSIs are carried on non-overlapping PUCCHs. This is equivalent to having one or more non-overlapping CSIs. Each non-overlapping CSI is then separately HARQ multiplexed with all the respective HARQs within the first time unit. Alternatively, it is also possible to directly multiplex all the CSIs and all the HARQs in the first time unit according to the priority order without judging whether the multiple CSIs overlap to obtain multiple UCIs. Alternatively, an association relationship between CSI and the CORESET/CORESET group that transmits DCI can also be established. Since DCI and HARQ also have an association relationship, further association between CSI and HARQ can be established to determine the same CORESET/CORESET group. Whether the PUCCHs of all associated CSIs overlap, if so, multiplex the overlapping CSIs into one CSI according to the priority order of the CSIs, and then carry the multiplexed one CSI on one PUCCH. This CSI is then multiplexed with HARQ in the first time unit, respectively.

It should also be understood that within the first time unit, there may also be HARQs corresponding to multiple different TRPs. The above-mentioned first HARQ and second HARQ are not limited to two HARQs. Rather, it is to distinguish HARQs corresponding to different TRPs. For example, there may be more HARQs corresponding to TRPs in the first time unit.

As a specific implementation manner, as shown in FIG. 6 , FIG. 6 is a schematic interaction diagram of a method for information transmission in some embodiments of the present application. In some embodiments, the first PUCCH is used to carry the first UCI , the second PUCCH is used to carry the second UCI, when the first PUCCH and the second PUCCH overlap in the time domain. On the basis of the method steps shown in FIG. 5 , the method 100 further includes:

S121, the terminal device discards the second UCI, or only sends the first UCI, where the number of symbols occupied by the second UCI is less than the number of symbols occupied by the first UCI, or the second UCI includes the positive acknowledgement ACK/ The number of negative acknowledgement NACK bits is less than the number of ACK/NACK bits included in the first UCI, or the number of ACK bits included in the second UCI is less than the number of ACK bits included in the first UCI, or the bits of the second UCI The number is less than the number of bits of the first UCI.

Step S130 may include:

S131, the terminal device sends the first UCI on the first PUCCH.

Specifically, for the description of steps S110 and S120 shown in FIG. 6 , reference may be made to the above description of steps S110 and S120 , which are not repeated here for brevity.

In S121, multiple UCIs are obtained due to multiplexing of CSI and HARQ. PUCCHs (resources) corresponding to multiple UCIs may overlap in the time domain. If multiple UCIs formed by multiplexing CSI and HARQ do not overlap in the time domain. That is, the PUCCH carrying the first UCI and the PUCCH carrying the second UCI do not overlap in the time domain, and the terminal device may send both the first UCI and the second UCI to the network device. If the PUCCH resources corresponding to multiple UCIs overlap in the time domain, the terminal equipment needs to select one of the multiple UCIs for transmission. Taking the first UCI and the second UCI as an example, that is, when the PUCCH carrying the first UCI and the PUCCH carrying the second UCI overlap in the time domain, the terminal device needs to discard part of the UCI to ensure that other Transmission of UCI. Specifically, the terminal device may discard the second UCI. In step S121, the terminal device discards the second UCI, that is, the terminal device only sends the first UCI. The condition that the first UCI sent is satisfied is: the number of symbols occupied by the first UCI is greater than or equal to the number of symbols occupied by the second UCI, or the positive ACK/negative acknowledgment included in the first UCI The number of NACK bits is greater than or equal to the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is greater than or equal to the number of ACK bits included in the second UCI. Alternatively, the number of bits of the first UCI is greater than or equal to the number of bits of the second UCI.

The second UCI discarded by the terminal device satisfies the following conditions: the number of symbols occupied by the second UCI is less than or equal to the number of symbols occupied by the first UCI, or the second UCI includes fewer ACK/NACK bits is equal to or equal to the number of ACK/NACK bits included in the first UCI, or, the number of ACK bits included in the second UCI is less than or equal to the number of ACK bits included in the first UCI. Alternatively, the number of bits of the second UCI is less than or equal to the number of bits of the first UCI.

Alternatively, the terminal device may select UCI with higher priority or more important to transmit, and discard the UCI with lower priority or less important. For example, according to the preconfigured priority order of each UCI, when the priority of the first UCI is higher than the second priority, the terminal device only transmits the first UCI, or discards the second UCI. The priority order can be configured through higher layer signaling.

In step S131, the terminal device only sends the first UCI on the first PUCCH

It should be understood that the above-mentioned condition satisfied by the second UCI or the condition satisfied by the first UCI (or may be referred to as a discarding criterion) may also include other conditions, which are not limited in this application.

In step 121, the PUCCH resource carrying the first UCI and the PUCCH resource carrying the second UCI need to be determined. Therefore, the number of bits of the first UCI and the number of bits of the second UCI need to be determined. Since the first UCI includes the first HARQ and CSI, the second UCI includes the second HARQ and CSI. According to the relationship in the sub-time domain of the third PUCCH resource carrying CSI, the fourth PUCCH resource carrying the first HARQ, and the fifth PUCCH resource carrying the second HARQ, the PUCCH carrying the first UCI and the PUCCH carrying the second UCI can be determined. PUCCH. Specifically, there are the following three situations:

The first case: if the third PUCCH resource carrying CSI, the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ both overlap in the time domain. That is, the third PUCCH resource and the fourth PUCCH resource overlap in the time domain, and the third PUCCH resource and the fifth PUCCH resource overlap in the time domain. Then, the CSI is multiplexed with the first HARQ and the second HARQ, respectively, to obtain the first UCI and the second UCI. Then, according to the PUCCH resource indicated by the first DCI, a plurality of PUCCH resources available for transmitting the first UCI are determined. Specifically, the first DCI may indicate 4 PUCCH resources, and the 4 PUCCH resources belong to the 4 pre-configured PUCCH resource sets respectively. That is, the first DCI indicates that there can be one PUCCH resource in each PUCCH resource set. After multiplexing the CSI and the first HARQ to obtain the first UCI, the number of bits of the first UCI may be determined. According to the number of bits of the first UCI, it is determined which PUCCH resource set the PUCCH resource carrying the first UCI belongs to, and after determining which PUCCH resource set the PUCCH resource carrying the first UCI belongs to, combined with the PUCCH resource indicated by the first DCI, it can be determined. Bearing the first PUCCH resource of the first UCI. Similarly, for the second UCI, a similar method is used to determine the second PUCCH resource bearing the second UCI, and if the first PUCCH resource and the second PUCCH resource overlap in the time domain, step S121 is performed. If the first PUCCH resource and the second PUCCH resource do not overlap in the time domain, the first UCI and the second UCI are respectively sent. In the first case, the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ may or may not overlap in the time domain.

The second case: if the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ do not overlap in the time domain. Then, the CSI and the first HARQ are multiplexed to obtain the first UCI, and then according to the number of bits of the first UCI. In combination with the first DCI, 4 PUCCH resources (fourth PUCCH resources) may be indicated, and the first PUCCH resource for transmitting the first UCI is determined. The first PUCCH resource is one of the 4 PUCCH resources indicated by the first DCI. If none of the 4 PUCCH resources indicated by the first DCI can carry the first UCI, that is, the number of bits of the first UCI is greater than the 4 PUCCH resources with the largest PUCCH resource. PUCCHresource. Then part of the CSI is discarded according to the priority of the CSI, until there is a PUCCH resource that can carry the first UCI among the 4 PUCCH resources indicated by the first DCI. That is, when the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ do not overlap in the time domain, the first UCI is transmitted (multiplexed) on the fourth PUCCH resource. Similarly, for the second UCI, the CSI and the second HARQ can be multiplexed to obtain the second UCI, and then according to the number of bits of the second UCI and the second DCI, four PUCCH resources can be indicated to determine the second UCI for transmitting the second UCI. PUCCH resources. If the first PUCCH resource and the second PUCCH resource overlap in the time domain, step S121 is performed. If the first PUCCH resource and the second PUCCH resource do not overlap in the time domain, the first UCI and the second UCI are respectively sent. Alternatively, if the third PUCCH resource carrying the CSI and the fifth PUCCH resource carrying the second HARQ do not overlap in the time domain, the CSI and the second HARQ may not be multiplexed, and the second HARQ may be transmitted separately. Alternatively, if the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ do not overlap in the time domain, the CSI and the first HARQ may not be multiplexed, that is, the CSI and the first HARQ are separately transmitted. In the second case, the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ may or may not overlap in the time domain.

The third case: if the third PUCCH resource carrying CSI and the fifth PUCCH resource carrying the second HARQ do not overlap in the time domain. Then, the CSI and the second HARQ are multiplexed to obtain the second UCI, and then according to the number of bits of the second UCI. In combination with the second DCI, 4 PUCCH resources (the fifth PUCCH resource) may be indicated, and the second PUCCH resource for transmitting the second UCI is determined. The second PUCCH resource is one of the 4 PUCCH resources indicated by the second DCI. If none of the 4 PUCCH resources indicated by the second DCI can carry the second UCI, that is, the number of bits of the second UCI is greater than the 4 PUCCH resources with the largest PUCCH resource. PUCCHresource. Then part of the CSI is discarded according to the priority of the CSI, until there is a PUCCH resource that can carry the second UCI among the four PUCCH resources indicated by the second DCI. That is, when the third PUCCH resource carrying CSI and the fifth PUCCH resource carrying the second HARQ do not overlap in the time domain, the second UCI is transmitted (multiplexed) on the fifth PUCCH resource. Similarly, for the first UCI, the CSI and the second HARQ are multiplexed to obtain the second UCI, and then according to the number of bits of the second UCI and the second DCI can indicate 4 PUCCH resources, the second PUCCH for transmitting the second UCI is determined resource, wherein the second PUCCH resource is one of the 4 PUCCH resources indicated by the second DCI. If the first PUCCH resource and the second PUCCH resource overlap in the time domain, step S121 is performed. If the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ do not overlap in the time domain, the CSI and the first HARQ may not be multiplexed, that is, the CSI and the first HARQ are separately transmitted.

Case 4: No matter whether the third PUCCH resource carrying CSI and the fourth PUCCH resource carrying the first HARQ and the fifth PUCCH resource carrying the second HARQ overlap in the time domain, that is, regardless of whether the third PUCCH resource carrying CSI and Whether the fourth PUCCH resource carrying the first HARQ overlaps in the time domain, and whether the third PUCCH resource carrying the CSI and the fifth PUCCH resource carrying the first HARQ overlap in the time domain, the CSI is multiplexed with the first HARQ The first UCI is obtained, and the CSI is multiplexed with the first HARQ to obtain the second UCI. Then, according to the bit numbers of the first UCI and the second UCI, the PUCCH resource indicated by the first DCI and the PUCCH resource indicated by the second DCI are combined. Determine the first PUCCH resource carrying the first UCI and the second PUCCH resource carrying the second UCI, and then determine whether the first PUCCH resource and the second PUCCH resource overlap in the time domain and whether part of the UCI needs to be discarded.

As another specific implementation manner, as shown in FIG. 7 , FIG. 7 is a schematic interaction diagram of a method for information transmission in some embodiments of the present application. In some embodiments, in the method steps shown in FIG. 5 , Based on this, the method 100 further includes:

S122, according to the first DCI and the first UCI, determine the first PUCCH in the first PUCCH resource set; according to the second DCI and the second UCI, determine the second PUCCH in the second PUCCH resource set, the first PUCCH The resource set and the second PUCCH resource set do not overlap in the time domain;

The above step S130: the terminal device sends at least one of the first UCI and the second UCI, including:

S132: The terminal device sends the first UCI on the first PUCCH, and/or sends the second UCI on the second PUCCH.

Specifically, because the first PUCCH resource pool is pre-configured for the first TRP. For example, the first PUCCH resource pool may include the aforementioned 4 PUCCH resource sets, and each PUCCH resource set includes multiple PUCCH resources. The 4 PUCCH resource sets may be regarded as the first PUCCH resource set. Similarly, for the second PUCCH resource pool that is also preconfigured by the second TRP, the second PUCCH resource pool may also include multiple PUCCH resources, and the second PUCCH resource pool may be regarded as a second PUCCH resource set. Moreover, the first PUCCH resource set and the second PUCCH resource set do not overlap in the time domain. The terminal device may determine the first PUCCH resource in the first PUCCH resource set according to the first DCI. Specifically, since the first DCI may indicate 4 PUCCH resources, the 4 PUCCH resources belong to the 4 pre-configured PUCCH resource sets respectively. The terminal device determines the four PUCCH resources according to the first DCI. akin. The terminal device may determine multiple PUCCH resources according to the second DCI or in the second PUCCH resource set. After the 4 PUCCH resources are determined, the first PUCCH resource carrying the first UCI is further determined among the 4 PUCCH resources according to the number of bits of the first UCI. If none of the 4 PUCCH resources indicated by the first DCI can carry the first UCI, that is, the number of bits of the first UCI is greater than the 4 PUCCH resource with the largest PUCCH resource. Then part of the CSI is discarded according to the priority of the CSI, until there is a PUCCH resource that can carry the first UCI among the 4 PUCCH resources indicated by the first DCI. Similarly, the terminal device may further determine the second PUCCH resource bearing the second UCI in the second PUCCH resource set according to the number of bits of the second UCI. Because the first PUCCH resource set and the second PUCCH resource set do not overlap in the time domain. Then it can be determined that the first PUCCH and the second PUCCH do not overlap in the time domain. That is, the first PUCCH resource for transmitting the first UCI and the second PUCCH resource for transmitting the second UCI are determined. And the first PUCCH resource and the second PUCCH resource do not overlap in the time domain.

In step S131, the terminal device may send the first UCI on the first PUCCH resource and/or send the second UCI on the second PUCCH resource.

The following describes the process of determining the PUCCH resource in the resource set with specific examples:

Specifically, the PUCCH resources configured by the first TRP and the PUCCH resources configured by the second TRP use two resource pools respectively. The PUCCH resource configurations of the two resource pools partially overlap (or do not overlap). The terminal device first determines the resource number according to the PUCCH resource indicated by the first DCI. Assuming that four PUCCH resource sets are configured for each of the two TRPs, the PUCCH resource number indicated by the DCI delivered by each TRP corresponds to one PUCCH resource in each of the four PUCCH resource sets. The terminal device first determines whether there is an overlap in the time domain with any PUCCH resource in the PUCCH resource pool of the second TRP based on the four PUCCH resources indicated by the first DCI. It is assumed that, compared with the PUCCH resource pool configured by the second TRP, there are N>0 non-overlapping PUCCH resources in the 4 PUCCH resources. If N=1, and the non-overlapping PUCCH resource 1 among the 4 PUCCH resources belongs to the PUCCH resource in the PUCCH resource set 0, since the PUCCH resource resource in the PUCCH resource set 0 can only transmit the first HARQ, the terminal device only transmits the first HARQ in the PUCCH resource set 0. The first HARQ is transmitted on resource 1, and CSI is not transmitted. That is, the first HARQ and CSI are not multiplexed on PUCCH resource 1. In this way, the risk that the first HARQ of the first TRP and the second HARQ of the second TRP overlap in the time domain and are discarded can be reduced. If compared with the PUCCH resource pool configured by the second TRP, there is a PUCCH resource belonging to other PUCCH resource set (marked as PUCCH resource x1, X1 can be any one or more of 1, 2, and 3) :but

If there is CSI in the time unit in which the first HARQ is currently transmitted, the terminal device determines the number of CSI that can be multiplexed by the first HARQ according to the maximum number of UCI bits that can be carried by the PUCCH resource x1. That is, the number of bits of the first HARQ+CSI x should be less than the maximum number of UCI bits corresponding to the PUCCH resource x1. If the number of bits of the further first HARQ+CSI x+CSI y is greater than the maximum number of UCI bits corresponding to the PUCCH resource x1, the CSI y is discarded. If adding any CSI exceeds the maximum number of UCI bits corresponding to the PUCCH resource x1, the PUCCH resource x1 only transmits the first HARQ 1 without multiplexing the CSI. That is, after the PUCCH resource x1 that does not overlap with the second PUCCH resource is determined, the number of CSIs that can be multiplexed by the first HARQ is further determined according to the size of the PUCCH resource x1. The correct transmission of the first HARQ is ensured, and the transmission efficiency of the HARQ is further improved.

If there is no CSI in the time unit in which the first HARQ is currently transmitted, the terminal device transmits HARQ 1 in PUCCH resource x1.

The information transmission method provided by the present application selects non-overlapping PUCCH resources in the time domain for different UCIs. It can ensure the correct transmission of multiple UCIs, further ensure the success rate of HARQ transmission, and improve communication efficiency.

Optionally, as a specific implementation manner, as shown in FIG. 8 , FIG. 8 is a schematic interaction diagram of a method for information transmission in some embodiments of the present application. Based on the method steps, the method 100 further includes:

S109 , the terminal device receives indication information, where the indication information is used to indicate that the CSI is associated with the first HARQ and the second HARQ.

Specifically, in this embodiment of the present application, the CSI in the first time unit is multiplexed with all HARQs in the first time unit. Therefore, the network device may notify the terminal device that the CSI is associated with the first HARQ and the second HARQ. The association relationship may be that the CSI is multiplexed with all HARQs in the first time unit respectively, or the association relationship may also be that the CSI is only multiplexed with some HARQs in the first time unit, for example, the CSI is multiplexed with the first time unit HARQ multiplexing of DCI scheduling in some CORESETs. Optionally, the indication information may be carried in higher layer signaling, such as RRC signaling. Alternatively, the indication information may be carried in the configuration information sent by the network device.

It should be understood that the above-mentioned association relationship may also be predefined or pre-configured by a protocol, and does not need to be notified to the terminal device in the form of indication information.

In one embodiment, when the above-mentioned association relationship is that CSI is associated with all multiple HARQs, if only one HARQ needs to be fed back in a time unit, the terminal device only needs to determine the first UCI and send the first UCI.

Optionally, S109 may also be included in the methods shown in FIG. 6 and FIG. 7 .

In some embodiments of the application, a first control resource set is used to carry the first DCI, a second control resource set is used to carry the second DCI, and the first control resource set and the second control resource Collections are different.

Specifically, since the DCI is carried by the control resource set. The control resource set includes time-frequency resource information occupied by the network device for sending PDCCH (DCI). The first DCI is carried on the first control resource set, and the second DCI is carried on the second control resource set. Since the first control resource set is different from the second control resource set, it is proved that the first DCI and the second DCI are sent by different TRPs. That is, different control resource sets correspond to different TRPs. The first TRP sends the first DCI to the terminal device using the first control resource set, and the second TRP sends the first DCI to the terminal device using the second control resource set. The first TRP corresponds to the first HARQ, and the second TRP corresponds to the second HARQ. That is, the first HARQ and the second HARQ need to be fed back to different network devices.

It should be understood that if the terminal device detects multiple DCIs on the first control resource set, it means that the HARQ feedback bits corresponding to the PDSCHs scheduled by the multiple DCIs need to be merged into one bitmap 1 in turn. It means that the HARQ feedback bits corresponding to the PDSCH scheduled by the multiple DCIs need to be combined into a bitmap 2 in turn, and the bitmap 1 and bitmap 2 are respectively carried on the two PUCCHs; the control resource set can also be grouped For example, if multiple DCIs are detected in the first control resource set group and the second control resource set group, the HARQ feedback bits corresponding to the PDSCH scheduled by the DCI need to be merged into one bitmap1 in turn, If multiple DCIs are detected on the second control resource set group, it means that the HARQ feedback bits corresponding to the PDSCH scheduled by the multiple DCIs need to be sequentially combined into a bitmap 2, and bitmap 1 and bitmap 2 are respectively carried on two PUCCHs; It can also be determined according to the information indicated by a specific field in the DCI. For example, if multiple DCIs all indicate CDM group 0, the HARQ feedback bits corresponding to the PDSCH scheduled by the multiple DCIs need to be combined into one bitmap 1 in turn. All indicate CDM group 1, then the HARQ feedback bits corresponding to the PDSCH scheduled by the multiple DCIs need to be combined into a bitmap 2 in turn. For another example, it can also be determined according to the detected are scrambled by scrambling code 1, then the HARQ feedback bits corresponding to the PDSCHs scheduled by the multiple DCIs need to be sequentially combined into a bitmap 1. If the detected multiple DCIs are scrambled by the scrambling code 2, the multiple DCI scheduling The HARQ feedback bits corresponding to the PDSCH need to be sequentially combined into a bitmap 2.

Optionally, the indication information received in S109 may also be used to indicate that the CSI is associated with the first control resource set and the second control resource set. Wherein, each bit field field value in the indication information corresponds to one or a group of different CORESET index values, or the index values of the CORESET group, and may also correspond to the index values of all CORESETs in a BWP or a carrier, for example, a CORESET 0 and CORESET 1 are configured in the BWP, the bit '00' of the indication information may indicate CORESET 0, '01' may indicate CORESET 1, and '10' may indicate CORESET 0 and CORESET 1. Then the terminal device determines the HARQ bits that can be combined with the CSI according to the association indication information, so that after combining, a bitmap can be formed and carried on a PUCCH resource. For example, if the indication information indicates '10', the CSI can be received with CORESET 0. The HARQ combination corresponding to the received DCI may also be combined with the HARQ corresponding to the DCI received on CORESET 1 .

Optionally, the indication information can also be a CORESET group index value, that is, each CORESET configuration includes an index value representing a CORESET group, and CORESETs with the same index value mean they belong to the same group, then the CORESET received on the same group CORESET. The HARQ corresponding to the DCI can be combined. The CORESET group index value is configured in the CSI configuration information, indicating that the CSI bits can be combined with the HARQ bits corresponding to the DCI detected on the control resource set corresponding to the configured CORESET or CORESET group. The UCI bits are carried on one PUCCH resource.

In the information transmission method provided in this application, in multi-site cooperative transmission, by changing the association relationship between CSI and HARQ, CSI is associated with HARQ in the time unit for transmitting CSI, so that CSI and HARQ in the time unit for transmitting CSI are associated Can be reused to form UCI. The normal transmission of CSI can be guaranteed. Improve communication efficiency. Further, when selecting resources for HARQ transmission, by selecting overlapping time domain resources for each HARQ, the correct transmission of HARQ is ensured, and the transmission efficiency of HARQ is further improved.

It should be understood that, in various embodiments of the present application, the first, the second, etc. are only used to indicate that a plurality of objects are different. For example, the first DCI and the second DCI are only to represent different DCIs. It should not have any impact on the DCI itself and the number, etc., and the above-mentioned first, second, etc., should not cause any limitation to the embodiments of the present application.

It can be understood that in the case of no conflict, the embodiments of the present application can be applied to scenarios of multiple TRPs, that is, multiple HARQs need to be fed back in the same time unit, and are not limited to only the first HARQ and the second HARQ. .

It should be understood that the manners, situations, categories, and divisions of the embodiments in the embodiments of the present application are only for the convenience of description, and should not constitute a special limitation. Various manners, categories, situations, and features in the embodiments are not inconsistent cases can be combined.

It should also be understood that the various numbers and numbers involved in the embodiments of the present application are only for the convenience of description, and are not used to limit the scope of the embodiments of the present application. The size of the sequence numbers of the above processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It should also be understood that the above is only for helping those skilled in the art to better understand the embodiments of the present application, but is not intended to limit the scope of the embodiments of the present application. Those skilled in the art can obviously make various equivalent modifications or changes based on the above examples. For example, some steps in the above method 100 may be unnecessary, or some new steps may be added. Or a combination of any two or any of the above embodiments. Such modifications, changes or combined solutions also fall within the scope of the embodiments of the present application.

It should also be understood that the above description of the embodiments of the present application focuses on emphasizing the differences between the various embodiments, and the unmentioned same or similar points can be referred to each other, and are not repeated here for brevity.

It should also be understood that, in this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). There is no limitation on its specific implementation.

The information transmission method according to the embodiment of the present application has been described in detail above with reference to FIG. 5 to FIG. 8 . Hereinafter, the communication device according to the embodiment of the present application will be described in detail with reference to FIG. 9 to FIG. 14 .

FIG. 9 shows a schematic block diagram of a communication apparatus 200 according to an embodiment of the present application. The apparatus 200 may correspond to the terminal device described in the foregoing method 100, or may be a chip or component applied to the terminal device, and, in the apparatus 200 Each module or unit is respectively used to perform each action or processing process performed by the terminal device in the above method 100 . As shown in FIG. 9 , the apparatus 200 may include a processing unit 210 and a transceiver unit 220 . The transceiving unit 220 is used for performing specific signal transceiving under the driving of the processing unit 210 .

The processing unit 210 is configured to determine the channel state information CSI transmitted in the first time unit, the first hybrid automatic repeat request HARQ and the second HARQ, the first HARQ is the data scheduled by the first downlink control information DCI; feedback information, where the second HARQ is feedback information of data scheduled by the second DCI;

The processing unit 210 is further configured to: determine first uplink control information UCI and second UCI, where the first UCI includes the first HARQ and the CSI, and the second UCI includes the second HARQ and the CSI;

The transceiver unit 220 is configured to: send at least one of the first UCI and the second UCI.

In the communication device provided by the embodiment of the present application, by changing the association relationship between CSI and HARQ, CSI is associated with all HARQs in the time unit for transmitting CSI, that is, CSI and all HARQs in the time unit for transmitting CSI can be complex Use to form UCI. The normal transmission of CSI can be guaranteed. Improve communication efficiency.

Optionally, in some embodiments of the present application, the first physical uplink control channel PUCCH is used to carry the first UCI, and the second PUCCH is used to carry the second UCI. When the first PUCCH and the second PUCCH are in the When overlapping in the time domain, the processing unit 210 is further configured to: discard the second UCI; wherein, the number of symbols occupied by the second UCI is less than the number of symbols occupied by the first UCI, or the second UCI includes a positive response The number of ACK/NACK bits is less than the number of ACK/NACK bits included in the first UCI, or the number of ACK bits included in the second UCI is less than the number of ACK bits included in the first UCI, or the second UCI includes the number of ACK bits is less than the number of bits of the first UCI.

Optionally, in some embodiments of the present application, the processing unit 210 is further configured to: determine the first PUCCH in the first PUCCH resource set according to the first DCI and the first UCI; second UCI, determining a second PUCCH in a second PUCCH resource set, the first PUCCH resource set and the second PUCCH resource set do not overlap in the time domain;

The transceiver unit 220 is further configured to: send the first UCI on the first PUCCH, and/or send the second UCI on the second PUCCH.

Optionally, in some embodiments of the present application, the transceiver unit 220 is further configured to: receive indication information, where the indication information is used to indicate that the CSI is associated with the first HARQ and the second HARQ.

The transceiver unit 220 is further configured to: the first control resource set is used to carry the first DCI, the second control resource set is used to carry the second DCI, the first control resource set is different from the second control resource set, the CSI There is an associated relationship with the first control resource set and the second control resource set.

Optionally, in some embodiments of the present application, the indication information is further used to indicate that the CSI is associated with the first control resource set and the second control resource set.

Optionally, in some embodiments of the present application, the third PUCCH carrying the CSI and the fourth PUCCH carrying the first HARQ overlap in the time domain, and the third PUCCH and the fifth PUCCH carrying the second HARQ overlap in the time domain. The PUCCH overlaps in the time domain; alternatively, the third PUCCH and the fourth PUCCH do not overlap in the time domain, and it is determined that the first UCI is multiplexed on the fourth PUCCH; alternatively, the third PUCCH and the fifth PUCCH are in the There is no overlap in the time domain, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

Further, the apparatus 200 may further include a storage unit, and the transceiver unit 220 may be a transceiver, an input/output interface or an interface circuit. The storage unit is used to store the instructions executed by the transceiver unit 220 and the processing unit 210 . The transceiver unit 220 , the processing unit 210 and the storage unit are coupled to each other, the storage unit stores instructions, the processing unit 210 is used to execute the instructions stored in the storage unit, and the transceiver unit 220 is used to perform specific signal transmission and reception under the drive of the processing unit 210 .

It should be understood that for the specific process of each unit in the apparatus 200 performing the above corresponding steps, please refer to the foregoing descriptions related to the terminal equipment in the relevant embodiments in the methods corresponding to FIG. 5 to FIG. 8 .

Optionally, the transceiver unit 220 may include a receiving unit (module) and a sending unit (module), configured to perform the various embodiments of the foregoing method 100 and the terminal equipment in the embodiments shown in FIG. 5 to FIG. 8 to receive information and transmit information. A step of. Optionally, the communication apparatus 200 may further include a storage unit for storing the instructions executed by the processing unit 210 and the transceiver unit 220 . The processing unit 210 , the transceiver unit 220 are connected to the storage unit in communication, the storage unit stores instructions, the processing unit 210 is used to execute the instructions stored in the storage unit, and the transceiver unit 220 is used to perform specific signal transmission and reception under the drive of the processing unit 210 .

It should be understood that the transceiver unit 220 may be a transceiver, an input/output interface or an interface circuit. The storage unit may be a memory. The processing unit 210 may be implemented by a processor. As shown in FIG. 10 , the communication apparatus 300 may include a processor 310 , a memory 320 and a transceiver 330 .

The communication apparatus 200 shown in FIG. 9 or the communication apparatus 300 shown in FIG. 10 can implement the various embodiments of the foregoing method 100 and the steps performed by the terminal device in the embodiments shown in FIGS. 5 to 9 . Similar descriptions can refer to the descriptions in the aforementioned corresponding methods. In order to avoid repetition, details are not repeated here.

It should also be understood that the communication apparatus 200 shown in FIG. 9 or the communication apparatus 300 shown in FIG. 10 may be a terminal device.

FIG. 11 shows a schematic block diagram of a communication apparatus 400 according to an embodiment of the present application. The apparatus 400 may correspond to the network equipment described in the foregoing method 100, or may be a chip or component applied to the network equipment, and, in the apparatus 400 Each module or unit is respectively used to perform each action or processing process performed by the network device in the foregoing method 100 . As shown in FIG. 11 , the apparatus 400 may include a processing unit 410 and a transceiver unit 420 . The transceiving unit 420 is used to perform specific signal transceiving under the driving of the processing unit 410 .

The processing unit 410 is configured to determine the channel state information CSI transmitted in the first time unit, the first hybrid automatic repeat request HARQ and the second HARQ, the first HARQ is the data scheduled by the first downlink control information DCI. feedback information, where the second HARQ is feedback information of data scheduled by the second DCI;

The processing unit 410 is further configured to: determine first uplink control information UCI and/or second UCI, where the first UCI includes the first HARQ and the CSI, and the second UCI includes the second HARQ and the CSI;

The transceiver unit 420 is configured to receive at least one of the first UCI and the second UCI.

The communication device provided by the embodiment of the present application can ensure normal transmission of CSI by changing the association relationship between CSI and HARQ, so that CSI is associated with all HARQs in the time unit in which CSI is transmitted. Improve communication efficiency.

Optionally, in some embodiments of the present application, the first physical uplink control channel PUCCH is used to carry the first UCI, and the second PUCCH is used to carry the second UCI. When the first PUCCH and the second PUCCH are in the When overlapping in the time domain, the transceiver unit 420 is specifically configured to: receive the first UCI;

The number of symbols occupied by the first UCI is more than the number of symbols occupied by the second UCI, or the number of positive ACK/NACK bits included in the first UCI is more than the number of ACK/NACK bits included in the second UCI or, the number of ACK bits included in the first UCI is more than the number of ACK bits included in the second UCI, or the number of bits in the first UCI is more than the number of bits in the second UCI.

Optionally, in some embodiments of the present application, the processing unit 410 is further configured to: determine the first PUCCH in the first PUCCH resource set according to the first DCI and the first UCI; second UCI, determining a second PUCCH in a second PUCCH resource set, the first PUCCH resource set and the second PUCCH resource set do not overlap in the time domain;

The transceiver unit 420 is specifically configured to: receive the first UCI on the first PUCCH, and/or send the second UCI on the received second PUCCH.

Optionally, in some embodiments of the present application, the transceiver unit 420 is further configured to: send indication information, where the indication information is used to indicate that the CSI is associated with the first HARQ and the second HARQ.

Optionally, in some embodiments of the present application, the first control resource set is used to carry the first DCI, the second control resource set is used to carry the second DCI, and the first control resource set and the second control resource set are used to carry the second DCI. The resource sets are different, and the CSI is associated with the first control resource set and the second control resource set.

Optionally, in some embodiments of the present application, the indication information is further used to indicate that the CSI is associated with the first control resource set and the second control resource set.

Optionally, in some embodiments of the present application, the third PUCCH carrying the CSI and the fourth PUCCH carrying the first HARQ overlap in the time domain, and the third PUCCH and the fifth PUCCH carrying the second HARQ overlap in the time domain. PUCCH overlaps in the time domain; or,

The third PUCCH and the fourth PUCCH do not overlap in the time domain, and it is determined that the first UCI is multiplexed on the fourth PUCCH; or,

The third PUCCH and the fifth PUCCH do not overlap in the time domain, and it is determined that the first UCI is multiplexed on the fifth PUCCH.

It should be understood that for the specific process of each unit in the apparatus 400 performing the above-mentioned corresponding steps, please refer to the foregoing descriptions related to the network equipment in the relevant embodiments in the method 100 of FIG. 5 to FIG. 8 .

Optionally, the transceiver unit 420 may include a receiving unit (module) and a sending unit (module), configured to perform the various embodiments of the foregoing method 100 and the network devices in the embodiments shown in FIG. 5 to FIG. 8 to receive information and transmit information. A step of. Optionally, the communication apparatus 400 may further include a storage unit for storing the instructions executed by the processing unit 410 and the transceiver unit 420 . The processing unit 410, the transceiver unit 420 and the storage unit are connected in communication, the storage unit stores instructions, the processing unit 410 is used to execute the instructions stored in the storage unit, and the transceiver unit 420 is used to perform specific signal transmission and reception under the drive of the processing unit 410.

It should be understood that the transceiver unit 420 may be a transceiver, an input/output interface or an interface circuit. The storage unit may be a memory. The processing unit 410 may be implemented by a processor. As shown in FIG. 12 , the communication apparatus 500 may include a processor 510 , a memory 520 and a transceiver 530 .

The communication apparatus 400 shown in FIG. 11 or the communication apparatus 500 shown in FIG. 12 can implement the various embodiments of the foregoing method 100 and the steps performed by the network device in the embodiments shown in FIGS. 5 to 9 . Similar descriptions can refer to the descriptions in the aforementioned corresponding methods. In order to avoid repetition, details are not repeated here.

It should also be understood that the communication apparatus 400 shown in FIG. 11 or the communication apparatus 500 shown in FIG. 12 may be a network device.

FIG. 13 is a schematic structural diagram of a terminal device 600 provided by this application. The above-mentioned apparatus 200 or 300 may be configured in the terminal device 600 , or the apparatus 200 or 300 itself may be the terminal device 600 . In other words, the terminal device 600 may perform the actions performed by the terminal device in the foregoing method 100 .

For convenience of explanation, FIG. 13 only shows the main components of the terminal device. As shown in FIG. 13 , the terminal device 600 includes a processor, a memory, a control circuit, an antenna, and an input and output device.

The processor is mainly used to process communication protocols and communication data, and to control the entire terminal device, execute software programs, and process data of the software programs, for example, for supporting the terminal device to execute the above-mentioned transmission precoding matrix instruction method embodiment. the described action. The memory is mainly used to store software programs and data, such as the codebook described in the above embodiments. The control circuit is mainly used for the conversion of the baseband signal and the radio frequency signal and the processing of the radio frequency signal. The control circuit together with the antenna can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the terminal device is powered on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art can understand that, for the convenience of description, FIG. 13 only shows one memory and a processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this embodiment of the present application.

For example, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data. The central processing unit is mainly used to control the entire terminal device, execute software programs, and process software programs. data. The processor in FIG. 12 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors, interconnected by technologies such as a bus. Those skilled in the art can understand that a terminal device may include multiple baseband processors to adapt to different network standards, a terminal device may include multiple central processors to enhance its processing capability, and various components of the terminal device may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

Exemplarily, in this embodiment of the present application, an antenna and a control circuit with a transceiver function may be regarded as the transceiver unit 601 of the terminal device 600 , and a processor with a processing function may be regarded as the processing unit 602 of the terminal device 600 . As shown in FIG. 13 , the terminal device 600 includes a transceiver unit 601 and a processing unit 602 . The transceiving unit may also be referred to as a transceiver, a transceiver, a transceiving device, or the like. Optionally, the device for implementing the receiving function in the transceiver unit 601 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver unit 601 may be regarded as a transmitting unit, that is, the transceiver unit 601 includes a receiving unit and a transmitting unit. Exemplarily, the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, and the like, and the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit, or the like.

FIG. 14 is a schematic structural diagram of a network device 700 according to an embodiment of the present application, which can be used to implement the functions of the network device in the foregoing method. The network device 700 includes one or more radio frequency units, such as a remote radio unit (RRU) 701 and one or more baseband units (BBU) (also referred to as digital units, digital units, DUs) 702. The RRU 701 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna 7011 and a radio frequency unit 7012 . The part of the RRU 701 is mainly used for sending and receiving radio frequency signals and converting radio frequency signals to baseband signals, for example, for sending the signaling messages in the above embodiments to the terminal equipment. The part of the BBU 702 is mainly used to perform baseband processing, control the base station, and the like. The RRU 701 and the BBU 702 may be physically set together, or may be physically separated, that is, a distributed base station.

The BBU 702 is the control center of the base station, which may also be called a processing unit, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, spectrum spreading, and the like. For example, the BBU (processing unit) 702 may be used to control the base station to perform the operation procedure of the network device in the foregoing method embodiments.

In an example, the BBU 702 may be composed of one or more single boards, and the multiple single boards may jointly support a radio access network of a single access standard (such as an LTE system or a 5G system), or may support different access into the standard wireless access network. The BBU 702 also includes a memory 7021 and a processor 7022. The memory 7021 is used to store necessary instructions and data. For example, the memory 7021 stores the codebook and the like in the above-mentioned embodiments. The processor 7022 is configured to control the base station to perform necessary actions, for example, to control the base station to perform the operation flow of the network device in the foregoing method embodiments. The memory 7021 and processor 7022 may serve one or more single boards. That is to say, the memory and processor can be provided separately on each single board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be provided on each single board.

In a possible implementation, with the development of system-on-chip (SoC) technology, all or part of the functions of part 702 and part 701 can be implemented by SoC technology, for example, a base station function chip Implementation, the base station function chip integrates a processor, a memory, an antenna interface and other devices, the program of the base station related functions is stored in the memory, and the processor executes the program to realize the related functions of the base station. Optionally, the base station function chip can also read the external memory of the chip to realize the related functions of the base station.

It should be understood that the structure of the network device illustrated in FIG. 14 is only a possible form, and should not constitute any limitation to the embodiments of the present application. This application does not exclude the possibility of other forms of base station structures that may appear in the future.

It should be understood that in this embodiment of the present application, the processor may be a central processing unit (central processing unit, CPU), and the processor may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application-specific integrated circuits ( application specific integrated circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It should also be understood that the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory Access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access Memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented in software, the above-described embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored on or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted over a wire from a website site, computer, server or data center (eg infrared, wireless, microwave, etc.) to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like containing a set of one or more available media. The usable media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media. The semiconductor medium may be a solid state drive.

An embodiment of the present application further provides a communication system, where the communication system includes: the above-mentioned terminal device and the above-mentioned network device.

The embodiment of the present application further provides a computer-readable medium for storing computer program codes, where the computer program includes instructions for executing the information transmission method of the embodiment of the present application in the foregoing method 100 . The readable medium may be a read-only memory (read-only memory, ROM) or a random access memory (random access memory, RAM), which is not limited in this embodiment of the present application.

The present application also provides a computer program product, the computer program product includes instructions, when the instructions are executed, so that the terminal device and the network device respectively perform operations corresponding to the above method of the terminal device and the network device.

Embodiments of the present application further provide a system chip, which includes: a processing unit and a communication unit, where the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, a pin, or a circuit. The processing unit can execute computer instructions, so that the chip in the communication device executes any one of the information transmission methods provided by the above embodiments of the present application.

Optionally, any of the communication apparatuses provided in the foregoing embodiments of the present application may include the system chip.

Optionally, the computer instructions are stored in a storage unit.

Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit can also be a storage unit in the terminal located outside the chip, such as ROM or other storage units that can store static information and instructions. Types of static storage devices, RAM, etc. Wherein, the processor mentioned in any one of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the program execution of the above-mentioned feedback information transmission method. The processing unit and the storage unit can be decoupled, respectively disposed on different physical devices, and connected in a wired or wireless manner to implement the respective functions of the processing unit and the storage unit, so as to support the system chip to implement the above embodiments various functions in . Alternatively, the processing unit and the memory can also be coupled on the same device.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. Volatile memory may be random access memory (RAM), which acts as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory Access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access Memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus RAM, DR RAM).

The terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

The terms "uplink" and "downlink" appearing in this application are used to describe the direction of data/information transmission in specific scenarios. For example, the "uplink" direction generally refers to the direction in which data/information is transmitted from the terminal to the network side, or the distribution The direction of transmission from the centralized unit to the centralized unit. The "downlink" direction generally refers to the direction of data/information transmission from the network side to the terminal, or the direction of transmission from the centralized unit to the distributed unit. It can be understood that "uplink" and "downlink" ” is only used to describe the transmission direction of data/information, and the specific starting and ending equipment of the data/information transmission is not limited.

Various messages/information/equipment/network element/system/device/action/operation/process/concept that may appear in this application are given names. It can be understood that these specific names do not Constitutes a limitation on related objects, and the assigned names can be changed according to factors such as the scene, context or usage habits. The understanding of the technical meaning of the technical terms in this application should mainly be based on the functions embodied/executed in the technical solution. and technical effects.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or Integration into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The unit described as a separate component may or may not be physically separated, and the component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. . Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (read-only memory, ROM), and random access.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (18)

1. A method of information transmission, comprising:

determining Channel State Information (CSI), a first hybrid automatic repeat request (HARQ) and a second HARQ which are transmitted in a first time unit, wherein the first HARQ is feedback information of data scheduled by first Downlink Control Information (DCI), and the second HARQ is feedback information of data scheduled by second DCI;

determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI;

transmitting at least one of the first UCI and the second UCI.

2. The method of claim 1, wherein a first Physical Uplink Control Channel (PUCCH) is used for carrying the first UCI, wherein a second PUCCH is used for carrying the second UCI, and wherein when the first PUCCH and the second PUCCH overlap in a time domain, the method further comprises:

discarding the second UCI;

the number of symbols occupied by the second UCI is less than that occupied by the first UCI, or the number of ACK/NACK bits included by the second UCI is less than that included by the first UCI, or the number of ACK bits included by the second UCI is less than that included by the first UCI, or the number of bits of the second UCI is less than that included by the first UCI.

3. The method of claim 1, further comprising:

determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI;

determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped in a time domain;

the transmitting at least one of the first UCI and the second UCI comprises:

transmitting the first UCI on the first PUCCH and/or transmitting the second UCI on the second PUCCH.

4. The method according to any one of claims 1 to 3, further comprising:

and receiving indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

5. The method of claim 1, wherein a first set of control resources is used for carrying the first DCI, and wherein a second set of control resources is used for carrying the second DCI, and wherein the first set of control resources is different from the second set of control resources, and wherein the CSI is associated with the first set of control resources and the second set of control resources.

6. The method of claim 1,

a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ are overlapped in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ are overlapped in the time domain; or,

the third PUCCH and the fourth PUCCH are not overlapped in a time domain, and the first UCI is determined to be multiplexed on the fourth PUCCH; or,

the third PUCCH and the fifth PUCCH are not overlapped in a time domain, and the first UCI is determined to be multiplexed on the fifth PUCCH.

7. A method of information transmission, comprising:

determining Channel State Information (CSI), a first hybrid automatic repeat request (HARQ) and a second HARQ which are transmitted in a first time unit, wherein the first HARQ is feedback information of data scheduled by first Downlink Control Information (DCI), and the second HARQ is feedback information of data scheduled by second DCI;

determining first Uplink Control Information (UCI) and second UCI, wherein the first UCI comprises the first HARQ and the CSI, and the second UCI comprises the second HARQ and the CSI;

receiving at least one of the first UCI and the second UCI.

8. The method of claim 7, wherein a first Physical Uplink Control Channel (PUCCH) is used for carrying the first UCI, wherein a second PUCCH is used for carrying the second UCI, and wherein when the first PUCCH and the second PUCCH overlap in a time domain, the method further comprises:

receiving the first UCI;

wherein the number of symbols occupied by the first UCI is greater than the number of symbols occupied by the second UCI, or the number of ACK/NACK bits included in the first UCI is greater than the number of ACK/NACK bits included in the second UCI, or the number of ACK bits included in the first UCI is greater than the number of ACK bits included in the second UCI, or the number of bits of the first UCI is greater than the number of bits of the second UCI.

9. The method of claim 7, further comprising:

determining a first PUCCH in a first PUCCH resource set according to the first DCI and the first UCI;

determining a second PUCCH in a second PUCCH resource set according to the second DCI and the second UCI, wherein the first PUCCH resource set and the second PUCCH resource set are not overlapped in a time domain;

the receiving at least one of the first UCI and the second UCI comprises:

receiving the first UCI on the first PUCCH and/or transmitting the second UCI on a second PUCCH.

10. The method according to any one of claims 7 to 9, further comprising:

and sending indication information, wherein the indication information is used for indicating that the CSI is associated with the first HARQ and the second HARQ.

11. The method of claim 7, wherein a first set of control resources is used for carrying the first DCI, wherein a second set of control resources is used for carrying the second DCI, wherein the first set of control resources is different from the second set of control resources, and wherein the CSI is associated with the first set of control resources and the second set of control resources.

12. The method of claim 7,

a third PUCCH carrying the CSI and a fourth PUCCH carrying the first HARQ are overlapped in a time domain, and the third PUCCH and a fifth PUCCH carrying the second HARQ are overlapped in the time domain; or,

the third PUCCH and the fourth PUCCH are not overlapped in a time domain, and the first UCI is determined to be multiplexed on the fourth PUCCH; or,

the third PUCCH and the fifth PUCCH are not overlapped in a time domain, and the first UCI is determined to be multiplexed on the fifth PUCCH.

13. A communication apparatus, comprising means for performing the steps of the method of any one of claims 1 to 6 or 7 to 12.

14. A communications apparatus comprising at least one processor configured to perform the method of any one of claims 1 to 6 or 7 to 12 and interface circuitry.

15. A terminal device, characterized in that it comprises a communication apparatus according to claim 13 or 14.

16. A network device comprising a communication apparatus according to claim 13 or 14.

17. A computer-readable storage medium, in which a program is stored which, when being executed by a processor, causes the method according to any one of claims 1 to 12 to be performed.

18. A chip system, comprising: a processor for calling and running a computer program from a memory so that a communication device in which the system-on-chip is installed performs the method of any one of claims 1 to 12.

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