CN112398592B

CN112398592B - Feedback information transmission method and communication device

Info

Publication number: CN112398592B
Application number: CN201910936461.2A
Authority: CN
Inventors: 纪刘榴; 杭海存; 施弘哲; 任翔; 毕晓艳
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-08-16
Filing date: 2019-09-29
Publication date: 2021-10-01
Anticipated expiration: 2039-09-29
Also published as: CN112398592A; WO2021032015A1

Abstract

The embodiment of the application provides a feedback information transmission method and device. In the feedback information transmission method, the terminal device may determine to generate the joint feedback information based on each feedback information, or to feed back at least one of the first feedback information and the second feedback information, based on whether the resource indication information in the DCI corresponding to each feedback information is the same. Or, in the feedback information transmission method, the terminal device may determine to generate the joint feedback information based on each feedback information, or to feed back at least one of the first feedback information and the second feedback information, based on whether the time unit in which the time-frequency resource occupied by each feedback information is located is the same, and whether the resource indication information in the DCI corresponding to each feedback information is the same. Therefore, the terminal can determine the feedback mode based on the information without additional signaling indication, and signaling overhead is saved.

Description

Feedback information transmission method and communication device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a feedback information transmission method and a communication apparatus.

Background

In the data transmission process, in order to ensure the reliability of data transmission, a terminal needs to feed back Hybrid Automatic Repeat request (HARQ) -acknowledgement information (ACK) to data sent by a base station, so that the base station can confirm whether the data needs to be retransmitted.

In a multi-station cooperative transmission scenario, a terminal may receive downlink data scheduled by multiple Transmission and Reception Points (TRPs), and after demodulating the downlink data, the terminal needs to send HARQ-ACK information of the downlink data, so that each TRP knows the transmission condition of the data. However, in this case, whether the HARQ-ACK information of the downlink data of the terminal is jointly transmitted to one or more TRPs or is separately transmitted to corresponding TRPs becomes a problem to be solved.

Disclosure of Invention

The application provides a feedback information transmission method and a communication device, which can determine a feedback mode among a plurality of feedback information.

In a first aspect, the present application provides a feedback information transmission method. In the feedback information transmission method, when the resource indication information corresponding to a plurality of feedback information is the same, the joint feedback information is generated based on the plurality of feedback information; and when the resource indication information corresponding to the plurality of feedback information is different, respectively feeding back at least one of the plurality of feedback information.

For the first feedback information and the second feedback information, the terminal determines first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information. And the downlink control related parameters respectively associated with the first feedback information and the second feedback information are different. That is, the first feedback information and the second feedback information are feedback information of downlink data scheduled by different network devices. The first DCI comprises first resource indication information, and the first resource indication information is used for determining time-frequency resources occupied by the first feedback information. The second DCI includes second resource indication information, where the second resource indication information is used to determine a time-frequency resource occupied by the second feedback information.

And when the first resource indication information is the same as the second resource indication information, the terminal generates joint feedback information based on the first feedback information and the second feedback information. And when the first resource indication information is different from the second resource indication information, the terminal respectively feeds back at least one of the first feedback information and the second feedback information.

Therefore, the terminal can determine the feedback mode among the plurality of feedback information without receiving an additional signaling indication, and signaling overhead is saved.

In this application, the first DCI corresponding to the first feedback information is the last DCI in the one or more DCIs corresponding to the first feedback information. And the second DCI corresponding to the second feedback information is the last DCI in the one or more DCIs corresponding to the second feedback information.

The last DCI refers to DCI carried by a PDCCH detected at the latest PDCCH detection opportunity in one or more downlink control channels corresponding to the feedback information. When the terminal is configured with a plurality of serving cells, each PDCCH detection opportunity is sequenced from small to large (namely from first to last), and then the PDCCHs detected by each PDCCH detection opportunity are sequenced from small to large according to the serving cell identifiers. The last DCI is the DCI carried by the PDCCH arranged at the last after sequencing.

In an embodiment, before the terminal determines whether the resource indication information is the same, it may further determine that the time unit indicated by the first time unit indication information is the same as the time unit indicated by the second time unit indication information. And the first time unit indication information is used for indicating the time unit of the time frequency resource occupied by the first feedback information. And the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information.

The time unit in which the time frequency resource occupied by the feedback information is located may be determined based on a timing offset value configured by the higher layer signaling. Or, the time unit in which the time frequency resource occupied by the feedback information is located is determined based on a plurality of timing offset values configured by the high-level signaling and the value of the timing offset indication domain-code point in the DCI corresponding to the feedback information.

When the time unit indicated by the first time unit indication information is different from the time unit indicated by the second time unit indication information, the terminal respectively feeds back at least one of the first feedback information and the second feedback information.

In an embodiment, the terminal may further determine whether the bit number of the first feedback information and the bit number of the second feedback information correspond to the same uplink control channel resource set, respectively. And if the uplink control channel resource sets respectively correspond to the same uplink control channel resource set, executing other judgment. And if the uplink control channel resource sets respectively correspond to different uplink control channel resource sets, the terminal respectively feeds back at least one of the first feedback information and the second feedback information.

In one embodiment, the terminal may further determine whether the first CCE location is the same as the second CCE location; the first CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the first DCI; and the second CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the second DCI. If the first CCE location is the same as the second CCE location, the terminal may perform the other determination; and if the first feedback information and the second feedback information are different, the terminal respectively feeds back at least one of the first feedback information and the second feedback information. Therefore, the embodiment is beneficial to determining an uplink control channel resource by combining the position of the CCE as the time-frequency resource occupied by the feedback information when the uplink control channel resource set determined based on the bit number of the feedback information comprises more uplink control channel resources.

In each of the above embodiments, the terminal feeding back at least one of the first feedback information and the second feedback information, respectively, includes: and when the time frequency resource indicated by the first resource indication information and the time frequency resource indicated by the second resource indication information are overlapped on a time domain, the terminal feeds back the first feedback information and does not feed back the second feedback information. And when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information do not overlap in a time domain, the terminal feeds back the first feedback information and the second feedback information respectively.

In one embodiment, the first feedback information and the second feedback information satisfy one or more of the following conditions: the priority of the first feedback information is higher than that of the second feedback information; the priority of the downlink control related parameter associated with the first feedback information is higher than the priority of the downlink control related parameter associated with the second feedback information. Therefore, when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information overlap in the time domain, the terminal feeds back the first feedback information and does not feed back the second feedback information.

In another embodiment, the index number of the high-level parameter in the control resource set associated with the first feedback information is greater than the index number of the high-level parameter in the control resource set associated with the second feedback information; or the index number of the high-level parameter in the control resource set associated with the first feedback information is smaller than the index number of the high-level parameter in the control resource set associated with the second feedback information; or the index number of the high-level parameter in the control resource set associated with the first feedback information is a preset index number. Therefore, when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information overlap in the time domain, the terminal feeds back the first feedback information and does not feed back the second feedback information.

In a second aspect, the present application further provides a feedback information transmission method. In the feedback information transmission method, when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information, the terminal generates the joint feedback information based on the first feedback information and the second feedback information. When the first resource indication information is different from the second resource indication information, or when the first time unit indication information is different from the second time unit indication information, the terminal respectively feeds back at least one of the first feedback information and the second feedback information.

And the downlink control related parameters respectively associated with the first feedback information and the second feedback information are different. That is to say, the first feedback information and the second feedback information are feedback information of downlink data scheduled by different network devices, respectively.

And the first time unit indication information is used for indicating the time unit of the time frequency resource occupied by the first feedback information. And the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information. The first resource indication information is used for determining the time frequency resource occupied by the first feedback information. The second resource indication information is used for determining the time frequency resource occupied by the second feedback information.

The terminal respectively feeds back at least one of the first feedback information and the second feedback information, and the method comprises the following steps: and when the time frequency resource indicated by the first resource indication information and the time frequency resource indicated by the second resource indication information are overlapped on the time domain, the terminal feeds back the first feedback information and does not feed back the second feedback information. When the first resource indication information is different from the second resource indication information, and when the time frequency resource indicated by the first resource indication information is not overlapped with the time frequency resource indicated by the second resource indication information in the time domain, the terminal respectively feeds back the first feedback information and the second feedback information.

In one embodiment, the first feedback information and the second feedback information satisfy one or more of the following conditions: the priority of the first feedback information is higher than that of the second feedback information; the priority of the downlink control related parameters associated with the first feedback information is higher than the priority of the downlink control related parameters associated with the second feedback information. The index number of the high-level parameter in the control resource set associated with the first feedback information is larger than the index number of the high-level parameter in the control resource set associated with the second feedback information; or the index number of the high-level parameter in the control resource set associated with the first feedback information is smaller than the index number of the high-level parameter in the control resource set associated with the second feedback information; or the index number of the high-level parameter in the control resource set associated with the first feedback information is a preset index number.

In a third aspect, the present application further provides a feedback information transmission method. The network equipment determines first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information; wherein, the downlink control related parameters respectively associated with the first feedback information and the second feedback information are different; the first DCI comprises first resource indication information, wherein the first resource indication information is used for determining time-frequency resources occupied by the first feedback information; the second DCI comprises second resource indication information, wherein the second resource indication information is used for determining time-frequency resources occupied by the second feedback information; when the first resource indication information is the same as the second resource indication information, the network device determines that feedback information fed back by the terminal device is joint feedback information generated based on the first feedback information and the second feedback information; and when the first resource indication information is different from the second resource indication information, the network equipment determines that the first feedback information or the second feedback information fed back by the terminal equipment is fed back independently.

In one embodiment, the first time unit indication information is the same as the second time unit indication information; the first time unit indication information is used for indicating a time unit where the time frequency resource occupied by the first feedback information is located; and the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information.

In an embodiment, the number of bits of the first feedback information and the number of bits of the second feedback information correspond to the same uplink control channel resource set, respectively.

In one embodiment, the first control channel element CCE location is the same as the second CCE location; the first CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the first DCI; and the second CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the second DCI.

In an embodiment, when the first time unit indication information is different from the second time unit indication information, the network device determines that the first feedback information or the second feedback information fed back by the terminal device is fed back independently; the first time unit indication information is used for indicating a time unit where the time frequency resource occupied by the first feedback information is located; and the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information.

In an embodiment, when the bit number of the first feedback information and the bit number of the second feedback information correspond to different uplink control channel resource sets, the network device determines that the first feedback information or the second feedback information fed back by the terminal device is fed back independently.

In one embodiment, the first CCE location is different from the second CCE location, and the network device determines that the first feedback information or the second feedback information fed back by the terminal device is fed back independently; the first CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the first DCI; and the second CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the second DCI.

In an embodiment, when the first resource indication information is different from the second resource indication information, the determining, by the network device, that the first feedback information or the second feedback information fed back by the terminal device is fed back independently includes: and when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information are overlapped in a time domain, the network equipment determines that the terminal feeds back the first feedback information and does not feed back the second feedback information.

In an embodiment, when the first resource indication information is different from the second resource indication information, the determining, by the network device, that the first feedback information or the second feedback information fed back by the terminal device is fed back independently includes: when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information do not overlap in a time domain, the network device determines that the terminal respectively feeds back the first feedback information and the second feedback information.

In one embodiment, the first feedback information and the second feedback information satisfy one or more of the following conditions: the priority of the first feedback information is higher than that of the second feedback information; the priority of the downlink control related parameter associated with the first feedback information is higher than the priority of the downlink control related parameter associated with the second feedback information.

In one embodiment, the index number of the higher-level parameter in the control resource set associated with the first feedback information is greater than the index number of the higher-level parameter in the control resource set associated with the second feedback information; or the index number of the high-level parameter in the control resource set associated with the first feedback information is smaller than the index number of the high-level parameter in the control resource set associated with the second feedback information; or the index number of the high-level parameter in the control resource set associated with the first feedback information is a preset index number.

In one embodiment, the network device determining a first DCI corresponding to the first feedback information and a second DCI corresponding to the second feedback information includes: the network equipment determines first DCI corresponding to first feedback information based on downlink control channel detection opportunity of each downlink control channel associated with the first feedback information; and the network equipment determines second DCI corresponding to the second feedback information based on the downlink control channel detection time of each downlink control channel associated with the second feedback information.

In an embodiment, the first DCI is a DCI carried by a downlink control channel with a later downlink control channel detection opportunity; and the second DCI is the DCI carried by the downlink control channel with the most rear downlink control channel detection opportunity.

In a fourth aspect, the present application further provides a feedback information transmission method. In the feedback information transmission method, when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information, the network device determines that the feedback information fed back by the terminal is the combined feedback information generated based on the first feedback information and the second feedback information. When the first resource indication information is different from the second resource indication information, or when the first time unit indication information is different from the second time unit indication information, the network device determines that the first feedback information or the second feedback information fed back by the terminal is independent.

Other contents of the aspect can refer to the related contents of the second aspect or the third aspect, and are not detailed here.

In a fifth aspect, the present application further provides a communication device, which has some or all of the functions of the terminal in the method examples described in the first aspect to the second aspect, for example, the functions of the communication device may have the functions in some or all of the embodiments in the present application, or may have the functions of implementing any of the embodiments in the present application separately. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the communication device may include a processing unit and a communication unit in the structure, and the processing unit is configured to support the communication device to execute the corresponding functions in the method. The communication unit is used for supporting communication between the communication device and other equipment. The communication device may further comprise a memory unit for coupling with the processing unit and the transmitting unit, which stores program instructions and data necessary for the communication device.

In one embodiment, the communication device comprises:

a processing unit, configured to determine first downlink control information DCI corresponding to the first feedback information and second DCI corresponding to the second feedback information;

wherein, the downlink control related parameters respectively associated with the first feedback information and the second feedback information are different; the first DCI comprises first resource indication information, wherein the first resource indication information is used for determining time-frequency resources occupied by the first feedback information; the second DCI comprises second resource indication information, wherein the second resource indication information is used for determining time-frequency resources occupied by the second feedback information;

the processing unit is further configured to generate joint feedback information based on the first feedback information and the second feedback information when the first resource indication information is the same as the second resource indication information; a communication unit, configured to send the joint feedback information;

the processing unit is further configured to determine to respectively feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information; the communication unit is configured to feed back at least one of the first feedback information and the second feedback information, respectively.

In another embodiment, the communication device includes:

the processing unit is used for generating joint feedback information based on the first feedback information and the second feedback information when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information; a communication unit for transmitting the joint feedback information;

the processing unit is further configured to determine to feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information or when the first time unit indication information is different from the second time unit indication information; a communication unit, configured to separately feed back at least one of the first feedback information and the second feedback information.

And the downlink control related parameters respectively associated with the first feedback information and the second feedback information are different. That is to say, the first feedback information and the second feedback information are feedback information of downlink data scheduled by different network devices, respectively. And the first time unit indication information is used for indicating the time unit of the time frequency resource occupied by the first feedback information. And the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information. The first resource indication information is used for determining the time frequency resource occupied by the first feedback information. The second resource indication information is used for determining the time frequency resource occupied by the second feedback information.

As an example, the processing unit may be a processor, the communication unit may be a transceiver or a communication interface, and the storage unit may be a memory.

In one embodiment, the communication device comprises:

the processor is used for determining first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information;

the processor is further configured to generate joint feedback information based on the first feedback information and the second feedback information when the first resource indication information is the same as the second resource indication information; a transceiver for transmitting the joint feedback information;

the processor is further configured to determine to respectively feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information; the transceiver is configured to separately feed back at least one of the first feedback information and the second feedback information.

In another embodiment, the communication device includes:

the processor is used for generating joint feedback information based on the first feedback information and the second feedback information when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information;

a transceiver for transmitting the joint feedback information;

the processor is further configured to determine to feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information or the first time unit indication information is different from the second time unit indication information; a transceiver for feeding back at least one of the first feedback information and the second feedback information, respectively.

In a sixth aspect, the present application further provides a communication device. The communication apparatus has a function of implementing part or all of the functions of the network device in the method example described in the third aspect, or part or all of the functions of the network device in the method embodiment described in the fourth aspect. For example, the function of the communication device may be the function in some or all of the embodiments of the network device in the present application, or may be the function of implementing any of the embodiments in the present application alone. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the communication device may include a processing unit and a communication unit configured to support the communication device to perform the corresponding functions of the above method. The communication unit is used for supporting communication between the communication device and other equipment, such as communication with terminal equipment. The communication device may further comprise a storage unit for coupling with the retrieving unit and the sending unit, which stores program instructions and data necessary for the communication device.

In one embodiment, the communication device comprises:

the processing unit is configured to determine that feedback information fed back by the terminal device is joint feedback information generated based on the first feedback information and the second feedback information when the first resource indication information is the same as the second resource indication information; a communication unit for receiving the joint feedback information;

the processing unit is configured to determine that the first feedback information or the second feedback information fed back by the terminal device is fed back independently when the first resource indication information is different from the second resource indication information; the communication unit is configured to receive the first feedback information or the second feedback information.

In another embodiment, the communication device includes:

the processing unit is used for determining that the feedback information fed back by the terminal is the joint feedback information based on the first feedback information and the second feedback information when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information; a communication unit for receiving the joint feedback information;

the processing unit is used for determining that the first feedback information or the second feedback information fed back by the terminal is independent when the first resource indication information is different from the second resource indication information or the first time unit indication information is different from the second time unit indication information; a communication unit for receiving the first feedback information or the second feedback information;

In one embodiment, the communication device comprises:

the processor is configured to determine that feedback information fed back by the terminal device is joint feedback information generated based on the first feedback information and the second feedback information when the first resource indication information is the same as the second resource indication information; a transceiver for receiving joint feedback information;

the processor is configured to determine that the first feedback information or the second feedback information fed back by the terminal device is fed back independently when the first resource indication information is different from the second resource indication information; the transceiver is configured to receive the first feedback information or the second feedback information.

In another embodiment, the communication device includes:

the processor is configured to determine that feedback information fed back by the terminal is joint feedback information generated based on the first feedback information and the second feedback information when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information; a transceiver for receiving joint feedback information;

the processor is configured to determine that first feedback information or second feedback information fed back by the terminal is independent when first resource indication information is different from second resource indication information or first time unit indication information is different from second time unit indication information; a transceiver for receiving the first feedback information or the second feedback information;

In particular implementations, the processor may be configured to perform, for example and without limitation, baseband related processing, and the transceiver may be configured to perform, for example and without limitation, radio frequency transceiving. The above devices may be respectively disposed on separate chips, or at least a part or all of the devices may be disposed on the same chip. For example, the processor may be further divided into an analog baseband processor and a digital baseband processor. The analog baseband processor and the transceiver can be integrated on the same chip, and the digital baseband processor can be arranged on a separate chip. With the development of integrated circuit technology, more and more devices can be integrated on the same chip, for example, a digital baseband processor can be integrated on the same chip with various application processors (such as, but not limited to, a graphics processor, a multimedia processor, etc.). Such a chip may be referred to as a system on chip (soc). Whether each device is separately located on a different chip or integrated on one or more chips often depends on the specific needs of the product design. The embodiment of the present invention does not limit the specific implementation form of the above device.

In a seventh aspect, the present application further provides a processor for executing the above methods. In the course of performing these methods, the processes of the above-mentioned methods relating to the transmission of the above-mentioned information and the reception of the above-mentioned information may be understood as a process of outputting the above-mentioned information by a processor, and a process of receiving the above-mentioned information by a processor. Specifically, upon outputting the information, the processor outputs the information to the transceiver for transmission by the transceiver. Further, the information may need to be processed after being output by the processor before reaching the transceiver. Similarly, when the processor receives the input information, the transceiver receives the information and inputs the information into the processor. Further, after the transceiver receives the information, the information may need to be processed before being input to the processor.

Based on the above principle, for example, the receiving of the joint feedback information mentioned in the foregoing method may be understood as the processor inputting the joint feedback information. As another example, sending the joint feedback information may be understood as the processor outputting the joint feedback information.

As such, the operations relating to the transmission, and reception by the processor may be more generally understood as operations relating to processor output and reception, input, and the like, rather than operations relating directly to transmission, and reception by the rf circuitry and antenna, unless specifically stated otherwise, or otherwise not contradicted by their actual role or inherent logic in the associated description.

In particular implementations, the processor may be a processor dedicated to performing the methods, or may be a processor executing computer instructions in a memory to perform the methods, such as a general purpose processor. The memory may be a non-transitory (non-transitory) memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor or separately disposed on different chips.

In an eighth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing computer software instructions for the terminal, which includes a program for executing the method according to the first aspect or the second aspect.

In a ninth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing computer software instructions for the network device, which includes a program for executing the method according to the third aspect or the fourth aspect.

In a tenth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first or second aspect.

In an eleventh aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the third or fourth aspect.

In a twelfth aspect, the present application provides a chip system, which includes a processor and an interface, for enabling a terminal to implement the functions referred to in the first aspect or the second aspect, for example, to determine or process at least one of data and information referred to in the above method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a thirteenth aspect, the present application provides a chip system, which includes a processor and an interface, for enabling a network device to implement the functions referred to in the third or fourth aspect, for example, to determine or process at least one of data and information referred to in the above method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a fourteenth aspect, the present application provides a method for determining uplink control channel resources. In the method for determining the uplink control channel resource, terminal equipment receives downlink control information DCI; and the terminal equipment determines the uplink control channel resources according to the resource indication information in the DCI, the CCE position of the control channel element and the high-level parameters of a control resource set CORESET. Wherein the CCE position is a CCE starting position corresponding to a CCE resource occupied by a physical downlink control channel PDCCH of the DCI. And the CORESET is a control resource set where the PDCCH of the DCI is located.

When determining uplink control channel resources according to the resource indication information and the CCE locations in the DCI, depending on the number of bits occupied by the resource indication information and the number of CCE locations of the control channel elements, for example, when the number of bits occupied by the resource indication information is 3 and there are 8 CCE locations of the control channel elements, the terminal may be allocated with 24 uplink control channel resources at most, and when the number of uplink control channel resources is greater than 24, the terminal cannot be completely indicated. Therefore, in this embodiment, by introducing the high-level parameter possessed by the CORESET to determine the uplink control channel resources, the number of uplink control channel resources that can be configured by the terminal device can be greatly increased, that is, more than 24 uplink control channel resources, for example, 64 uplink control channel resources, can be configured.

In one embodiment, the determining, by the terminal device, the uplink control channel resource according to the resource indication information, the CCE location, and the higher layer parameter in the DCI includes: the terminal equipment determines a first resource number according to the resource indication information and the CCE position in the DCI; the terminal equipment determines a second resource number according to the first resource number and the index number of the high-level parameter; and the terminal equipment determines the uplink control channel resource corresponding to the second resource number from the uplink control channel resource set.

In this embodiment, the terminal device determines the first resource number r according to the resource indication information and the CCE location in the DCI_PUCCHThe following formula can be used to determine, taking the uplink control channel resource as PUCCH resource as an example:

wherein mod represents the remainder; n is a radical of_CCE,pThe total number of CCEs in the CORESET where the DCI is located is configured by high-level signaling;

n_CCE,pis the CCE location occupied by the PDCCH carrying the DCI;

Δ_PRIis resource indicator information (PRI) in the DCI;

R_PUCCHthe total number of PUCCH resources allocated to the CORESET group in which the CORESET is located.

In this embodiment, the determining, by the terminal device, the second resource number according to the first resource number and the index number of the high-level parameter includes: the terminal equipment determines a PUCCH resource subset allocated to a CORESET group in which the CORESET is located according to the index number of the high-level parameter; and the terminal equipment determines a second resource number according to the PUCCH resource subset and the first resource number.

As can be seen, in this embodiment, the number of uplink control channel resources in the uplink control channel resource set that the terminal device can be configured to depends on the number of control resource set groups that the terminal device is configured to. When the terminal device is configured with a plurality of control resource set groups, the terminal device may be configured with an uplink control channel resource set having more than 32 uplink control channel resources. Each control resource set group may be allocated no more than 32 uplink control channel resources so that the uplink control channel resources may be determined using this embodiment.

In another embodiment, the determining, by the terminal device, the uplink control channel resource according to the resource indication information, the CCE location, and the higher layer parameter in the DCI includes: the terminal equipment determines the number of configured uplink control channel resources according to a plurality of high-level parameters in a plurality of configured control resource set groups and the configuration information of the PDCCH of the DCI; and the terminal equipment determines the uplink control channel resource according to the resource indication information and the CCE position in the DCI.

Wherein, the terminal device determines the uplink control channel resource according to the resource indication information and the CCE location in the DCI, and may adopt the formula described in the above embodiment, where R is_PUCCHThe number of the configured uplink control channel resources is determined.

In another embodiment, the determining, by the terminal device, the uplink control channel resource according to the resource indication information, the CCE location, and the higher layer parameter in the DCI includes: the terminal equipment determines a first offset according to the resource indication information in the DCI; the terminal equipment determines a second offset according to the CCE position and the high-level parameters; and the terminal equipment determines the uplink control channel resource according to the first offset and the second offset.

The terminal device determines the uplink control channel resource according to the first offset and the second offset, and may obtain the uplink control channel resource by using the following formula:

alternatively, the following formula is used to obtain:

wherein R is_PUCCHEqual to the number of the uplink control channel resources in the uplink control channel resource set. Wherein the uplink control channel resource set is determined based on the number of bits of the uplink control information.

In another embodiment, the determining, by the terminal device, the uplink control channel resource according to the resource indication information, the CCE location, and the higher layer parameter in the DCI includes: the terminal equipment determines a first offset according to the resource indication information and the high-level parameters in the DCI; the terminal equipment determines a second offset according to the CCE position; and the terminal equipment determines the uplink control channel resource according to the first offset and the second offset.

alternatively, the following formula is used to obtain:

in a fifteenth aspect, the present application further provides a communication device. The communication device has a function of implementing part or all of the functions of the terminal equipment in the method example described in the fourteenth aspect. For example, the function of the communication device may be provided with the functions of some or all of the embodiments of the terminal device in the present application, or may be provided with the functions of any of the embodiments in the present application. The functions can be realized by hardware, and the functions can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible design, the communication device may include a processing unit and a communication unit configured to support the communication device to perform the corresponding functions of the above method. The communication unit is used for supporting communication between the communication device and other equipment, such as communication with network equipment. The communication device may further comprise a storage unit for coupling with the retrieving unit and the sending unit, which stores program instructions and data necessary for the communication device.

In one embodiment, the communication device comprises:

a communication unit, configured to receive downlink control information DCI;

and the processing unit is used for determining the uplink control channel resource according to the resource indication information, the CCE position of the control channel element and the high-level parameters in the control resource set CORESET in the DCI.

Wherein the CCE position is a CCE starting position corresponding to a CCE resource occupied by a physical downlink control channel PDCCH of the DCI. And the CORESET is a control resource set where the PDCCH of the DCI is located.

In one embodiment, the communication device comprises:

a transceiver for receiving downlink control information DCI;

and the processor is used for determining the uplink control channel resources according to the resource indication information, the CCE positions of the control channel elements and the high-level parameters in the control resource set CORESET in the DCI.

In a sixteenth aspect, the present application further provides a processor for performing the above methods. In the course of performing these methods, the processes of the above-mentioned methods relating to the transmission of the above-mentioned information and the reception of the above-mentioned information may be understood as a process of outputting the above-mentioned information by a processor, and a process of receiving the above-mentioned information by a processor. Specifically, upon outputting the information, the processor outputs the information to the transceiver for transmission by the transceiver. Further, the information may need to be processed after being output by the processor before reaching the transceiver. Similarly, when the processor receives the input information, the transceiver receives the information and inputs the information into the processor. Further, after the transceiver receives the information, the information may need to be processed before being input to the processor.

Based on the above principle, for example, the receiving of the downlink control information in the foregoing method may be understood as inputting the downlink control information by the processor.

In a seventeenth aspect, an embodiment of the present invention provides a computer-readable storage medium for storing computer software instructions for the terminal, which includes a program for executing the fourteenth aspect of the method.

In an eighteenth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the fourteenth aspect described above.

In a nineteenth aspect, the present application also provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the fourteenth aspect described above.

In a twentieth aspect, the present application provides a chip system, which includes a processor and an interface, for enabling a terminal to implement the functions referred to in the fourteenth aspect, for example, to determine or process at least one of data and information referred to in the above method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

In a twenty-first aspect, the present application provides a chip system, which includes a processor and an interface, and is configured to support a network device to implement the functions related to the fourteenth aspect, for example, to determine or process at least one of data and information related to the method. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device. The chip system may be formed by a chip, or may include a chip and other discrete devices.

Drawings

FIG. 1 is an exemplary diagram of a V2N system provided by an embodiment of the present application;

fig. 2 is a diagram illustrating HARQ-ACK feedback provided in an embodiment of the present application;

fig. 3 is another schematic diagram of HARQ-ACK feedback provided in an embodiment of the present application;

fig. 4 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

fig. 5 is a further schematic diagram of HARQ-ACK feedback provided in an embodiment of the present application;

fig. 6 is a flowchart illustrating a feedback information transmission method according to an embodiment of the present application;

fig. 7 is a schematic diagram of a joint feedback information provided by an embodiment of the present application;

fig. 8 is a schematic flowchart of another feedback information transmission method provided in an embodiment of the present application;

fig. 9 is a schematic diagram of independent feedback information provided by an embodiment of the present application;

fig. 10 is a flowchart illustrating a further feedback information transmission method according to an embodiment of the present application;

fig. 11 is a schematic flowchart of another feedback information transmission method according to an embodiment of the present application;

FIG. 12 is a schematic diagram of an apparatus according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 14 is a flowchart illustrating a method for determining uplink control channel resources according to an embodiment of the present application.

Detailed Description

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

The technical scheme of the application can be particularly applied to various communication systems. For example, with the continuous development of communication technology, the technical solution of the present application may also be used in future networks, such as a 5G system, which may also be referred to as a New Radio (NR) system, or may be used in a device to device (D2D) system, a machine to machine (M2M) system, and so on.

The method and the device can be applied to the vehicle networking such as communication between the vehicle and the network (V2N). That is, the terminal described herein may also be a vehicle or a vehicle component applied in a vehicle. Fig. 1 is a schematic diagram of a V2N system provided in an embodiment of the present application. As shown in fig. 1, the roadside infrastructure may include a Road Side Unit (RSU) of a network equipment type. The RSU of this network device type may provide timing synchronization and resource scheduling to the vehicle or vehicle component in communication with the network device.

The network architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and as a person of ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

In this application, a network device may be a device with a wireless transceiving function or a chip disposed on the device, and the network device includes but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), wireless fidelity (WIFI), etc., and may also be 5G, such as NR, a gbb in the system, or a transmission point (TRP or TP), a group of antennas (including multiple antennas, or a panel of antennas, such as NB, a panel of antennas, or a panel of antennas, such as a network, a network Node, or a Node B, distributed Units (DUs), etc., the aforementioned RSUs of network devices or types of network devices in the V2X car networking.

In some deployments, the gNB or transmission point may include a Centralized Unit (CU) and a DU. The gNB may also include a Radio Unit (RU). A CU implements part of the function of a gNB or a transmission point, and a DU implements part of the function of the gNB or the transmission point, for example, the CU implements the function of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer, and the DU implements the function of a Radio Link Control (RLC), a Media Access Control (MAC) layer and a Physical (PHY) layer. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as RRC layer signaling or PHCP layer signaling, may also be considered to be transmitted by the DU or by the DU + RU under this architecture. It is to be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited herein.

In this application, a terminal may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user device. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a wireless terminal in the aforementioned V2X car networking, or an RSU of a wireless terminal type, and the like. The embodiments of the present application do not limit the application scenarios. In this application, a terminal device may be referred to as a terminal for short.

In addition, in the embodiments of the present application, the word "exemplary" is used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, the term using examples is intended to present concepts in a concrete fashion.

In the embodiments of the present application, "of", "corresponding", "associated" and "corresponding" may be sometimes used in a mixed manner, and it should be noted that the intended meaning is consistent when the difference is not emphasized. In the embodiments of the present application, at least one may also be described as one or more, and a plurality may be two, three, four or more, which is not limited in the present application. In the embodiment of the present application, for a technical feature, the technical features in the technical feature are distinguished by "first", "second", "third", "a", "B", "C", and "D", and the like, and the technical features described in "first", "second", "third", "a", "B", "C", and "D" are not in a sequential order or a size order.

In this embodiment, the feedback information may be a hybrid automatic repeat request (HARQ) -Acknowledgement (ACK) codebook. The HARQ-ACK codebook includes one or more HARQ-ACK information bits. One HARQ-ACK information bit is one or more HARQ-ACK information bits of downlink data. The one or more downlink data are data respectively carried by one or more Physical Downlink Shared Channels (PDSCHs) scheduled by one or more Physical Downlink Control Channels (PDCCHs) by the same network device. The Downlink Control Information (DCI) carried by the PDCCH is used to inform the terminal how to receive the PDSCH. The HARQ-ACK information bits are used for positive (ACK) or Negative (NACK) feedback of received downlink data, such as data carried by the PDSCH, so that lost or erroneous data can be retransmitted. Herein, the downlink control channel may be a physical downlink control channel.

The time-frequency resource occupied by the HARQ-ACK codebook is determined based on the resource indication information in the DCI corresponding to the HARQ-ACK codebook, namely the resource indication information in the DCI corresponding to the HARQ-ACK codebook is used for determining the time-frequency resource occupied by the HARQ-ACK codebook.

The DCI corresponding to the HARQ-ACK codebook is the DCI carried by the PDCCH with the most rear PDCCH detection opportunity in the one or more PDCCHs associated with the HARQ-ACK codebook, or the DCI carried by the PDCCH with the most rear PDCCH receiving time. Herein, the downlink control channel detection occasion may be a physical downlink control channel detection occasion, i.e. a PDCCH detection occasion.

The last DCI refers to DCI carried by a PDCCH detected at the latest PDCCH detection opportunity in one or more downlink control channels corresponding to the feedback information. When the terminal is configured with a plurality of serving cells, each PDCCH detection opportunity is sequenced from small to large (namely from first to last), and then the PDCCHs detected by each PDCCH detection opportunity are sequenced from small to large according to the serving cell identifiers. The last DCI is the DCI carried by the PDCCH arranged at the last after sequencing. Optionally, the DCI corresponding to the HARQ-ACK codebook may also be referred to as a last DCI of the HARQ-ACK codebook.

One or more PDCCHs associated with the HARQ-ACK codebook are PDCCHs respectively corresponding to the HARQ-ACK information bits in the HARQ-ACK codebook. The PDCCH corresponding to one HARQ-ACK information bit means that the downlink data corresponding to the HARQ-ACK information is scheduled by the PDCCH.

The PDCCH detection time is obtained according to the configuration of the downlink control related parameters. For example, the configuration of the downlink control related parameters includes search space set (SS set), which includes a period of the SS set, a pattern (pattern), and the like. Thus, the terminal can know the start position, e.g., start symbol, of each PDCCH detection occasion. The configuration of the SS set is associated with the CORESET identifier, and the CORESET configuration information includes the number of time domain symbols occupied by CORESET, such as 1, 2, and 3 symbols. Therefore, the terminal can know where the PDCCH detection occasion is, i.e., on which symbols, through SS set configuration. Therefore, the PDCCH detection timing of the PDCCH is a PDCCH detection timing at which the PDCCH can be detected.

The PDCCH reception time is a time when the terminal receives the PDCCH, and is a time when the PDCCH is actually received when detection is performed based on the PDCCH detection timing.

And the time units indicated by the time unit indication information corresponding to the HARQ-ACK information bits in one HARQ-ACK codebook are the same. In one embodiment, when higher layer signaling configures a timing offset value, the time unit indication information is the timing offset value. In another embodiment, when the higher layer signaling configures multiple timing offset values, the time unit indication information further includes a value of a timing offset indication field-code point in DCI corresponding to the HARQ-ACK information bit. The value of the timing offset indication field-code point is used to indicate one of a plurality of timing offset values of a higher layer signaling configuration. The timing offset value is defined as the timing offset between the time unit in which the PDSCH is transmitted and the time unit in which the HARQ-ACK information bit is fed back. In addition, downlink control related parameters respectively associated with DCIs corresponding to HARQ-ACK information bits in one HARQ-ACK codebook are also the same. The timing offset value may be a time domain indication value, a feedback timing indication, or the like. The timing offset indication field-code point in DCI may be a feedback timing indication field, or a time unit indication field.

In yet another embodiment, the time unit indication information may include a value of a timing offset indication field-code point in DCI to which the HARQ-ACK information bit corresponds. That is, the terminal may determine the time unit where the HARQ-ACK information bit is fed back based on the value of the timing offset indication field-code point in the DCI.

The time unit may be one or more radio frames, one or more subframes, one or more slots, one or more minislots (mini slots), one or more symbols, or a time window consisting of multiple frames or subframes, such as a System Information (SI) window. The time length of one symbol is not limited in the embodiment of the present application. The length of one symbol may be different for different subcarrier spacings. The symbols may include an uplink symbol and a downlink symbol, wherein the uplink symbol may be referred to as a single carrier-frequency division multiple Access (SC-FDMA) symbol or an orthogonal frequency division multiple Access (OFDM) symbol; the downlink symbols may be referred to as OFDM symbols.

The timing offset indication field (code point) value in the DCI has a one-to-one correspondence relationship with a plurality of timing offset values configured by a high-level parameter. For example, the timing offset indication domain-code point values are in one-to-one correspondence with the K1set { K0, K1, …, ki } (for example, ki represents the index number of the plurality of timing offset values of the high-level signaling configuration) from first to last from small to large. For example, the values 00, 01, 10, and 11 of the timing offset indicator field-code point correspond to the values of k0, k1, k2, and k3 configured in the higher layer signaling, respectively. If the value of the timing offset indicator field-code point is 00, the time unit corresponding to the HARQ-ACK information bit of the DCI scheduled PDSCH is determined based on the timing offset value identified by the value of k 0.

For example, the higher layer signaling indicates a timing offset value K1, K1 is equal to 2, and the time unit is exemplified by the slot, and the uplink and downlink subcarrier spacing are the same. As shown in fig. 2, TRP1 schedules slot n transmission PDSCH0 through DCI0 carried by PDCCH 0; and scheduling slot n +1 for PDSCH1 through DCI1 carried by PDCCH 1. Then, the time unit indication information corresponding to the HARQ-ACK information bit of PDSCH0 is that K1 is 2, and the time unit indicated by the time unit indication information is: and counting the 2 nd time unit backward from the time unit in which the time frequency resource occupied by the PDSCH0 is located, namely slot n + 2. The time unit indication information corresponding to the HARQ-ACK information bit of PDSCH1 is that K1 is 2, and the time unit indicated by the time unit indication information is: the 2 nd time unit, i.e. slot n +1+2, i.e. slot n +3, is counted backwards in the time unit where the PDSCH1 occupies the time frequency resources.

Take the example that the higher layer signaling indicates a plurality of timing offset values K1set { K0 ═ 4, K1 ═ 3}, and the time units are slot slots, and the uplink and downlink subcarrier intervals are the same. As shown in fig. 3, TRP1 schedules slot n transmission PDSCH0 through DCI0 carried by PDCCH 0; and scheduling slot n +1 for PDSCH1 through DCI1 carried by PDCCH 1. The timing offset in DCI0 indicates that the value of the domain-code point is equal to 4 or k 0; the timing offset in DCI1 indicates that the value of the domain-code point is equal to 3 or k 1. Then, the time unit indication information corresponding to the HARQ-ACK information bit of PDSCH0 includes K1set ═ { K0 ═ 4, K1 ═ 3} configured in the higher layer signaling and the value of the timing offset indication field-code point in DCI 0. The time unit indication information corresponding to the HARQ-ACK information bit of PDSCH1 includes K1set { K0 ═ 4, K1 ═ 3} configured in the higher layer signaling and the value of the timing offset indication field-code point in DCI 1. The time unit indicated by the time unit indication information corresponding to the HARQ-ACK information bit of PDSCH0 is: the 4 th time unit, namely slot n +4, is counted backwards in the time unit slot0 where the time frequency resource occupied by the PDSCH0 is located. The time unit indicated by the time unit indication information corresponding to the HARQ-ACK information bit of PDSCH1 is: the 3 rd time unit, namely slot1 n +1+3, namely slot n +4, is counted backwards in the time unit slot n +1 where the time frequency resources occupied by the PDSCH1 are located.

In fig. 2, the time slot2 indicated by the time element indication information corresponding to the HARQ-ACK information bits of PDSCH0 and the time slot3 indicated by the time element indication information corresponding to the HARQ-ACK information bits of PDSCH1 make it impossible for the terminal to feed back the HARQ-ACK information bits of PDSCH0 and the HARQ-ACK information bits of PDSCH1 in one HARQ-ACK codebook.

In fig. 3, the time unit indicated by the time unit indication information corresponding to the HARQ-ACK information bit of PDSCH0 is slot4, and the time unit indicated by the time unit indication information corresponding to the HARQ-ACK information bit of PDSCH1 is also slot4, so the terminal can put the HARQ-ACK information bit of PDSCH0 and the HARQ-ACK information bit of PDSCH1 in one HARQ-ACK codebook and perform feedback on slot 4. Correspondingly, the DCI corresponding to the HARQ-ACK codebook on slot4 in fig. 4 is the DCI carried by the PDCCH with the latest PDCCH detection opportunity or PDCCH receiving time in DCI0 and DCI 1. For example, assuming that the PDCCH detection timing for detecting DCI1 is the most late, DCI1 is the DCI corresponding to the HARQ-ACK codebook.

The time unit of the time-frequency resource occupied by one HARQ-ACK codebook can be determined by the time unit indication information corresponding to any HARQ-ACK information bit contained in the time-frequency resource. In the embodiment of the application, time unit indication information corresponding to the HARQ-ACK information bit of downlink data scheduled by DCI corresponding to the HARQ-ACK codebook is used as the time unit indication information of the HARQ-ACK codebook for example. For short: and the time unit indication information of the HARQ-ACK codebook is the time unit indication information corresponding to the DCI corresponding to the HARQ-ACK codebook.

In another embodiment, the time unit occupied by one HARQ-ACK codebook for the time-frequency resource may also be configured by Radio Resource Control (RRC) signaling.

The time-frequency resource occupied by the HARQ-ACK codebook is determined based on the resource indication information in the DCI corresponding to the HARQ-ACK codebook, namely the resource indication information in the DCI corresponding to the HARQ-ACK codebook is used for determining the resource occupied by the HARQ-ACK codebook. The resources include time domain, frequency domain, code domain resources, etc. The resource indication information may also be a resource indication, or an uplink control channel resource indication, or a PUCCH resource indication.

The network device configures an uplink control channel resource pool for the terminal through a high-level signaling, such as an RRC signaling, a media access control element (MAC CE), and the like. The uplink control channel resource pool includes a plurality of uplink control channel resource sets. Different uplink control channel resource sets correspond to different feedback bit size ranges. Optionally, the uplink control channel resource pool may be indirectly obtained based on other parameters configured by the higher layer signaling, or may be parameters directly configured by the higher layer signaling.

In one embodiment, the time-frequency resource occupied by the HARQ-ACK codebook is determined by the bit number of the HARQ-ACK codebook and the resource indication information in the DCI corresponding to the HARQ-ACK codebook. The terminal may determine a set of uplink control channel resources from the pool of uplink control channel resources based on the number of bits of the HARQ-ACK codebook. Furthermore, the terminal may determine an uplink control channel resource from the selected uplink control channel resource set based on the value of the resource indication information in the DCI corresponding to the HARQ-ACK codebook, as the time-frequency resource occupied by the HARQ-ACK codebook.

In another embodiment, the time-frequency resource occupied by the HARQ-ACK codebook is determined by the bit number of the HARQ-ACK codebook, the resource indication information in the DCI corresponding to the HARQ-ACK codebook, and the CCE position occupied by the PDCCH carrying the DCI. The embodiment can solve the problem that the uplink control channel resource set comprises more uplink control channel resources and the resource indication information in the DCI cannot indicate each uplink control channel resource in the set. That is, the terminal may determine an uplink control channel resource from the uplink control channel resource set according to the resource indication information and a Control Channel Element (CCE) position occupied by the PDCCH carrying the DCI.

For example, a set of uplink control channel resources includes 32 uplink control channel resources. The resource indication information in the DCI is 3 bits, which may respectively represent 8 uplink control channel resources. An uplink control channel resource can be determined from the 32 uplink control channel resources according to the CCE position occupied by the PDCCH carrying the DCI. In this way, the terminal can select one uplink control channel resource set from the uplink control channel resource pool based on the number of bits of the HARQ-ACK codebook. Then, the terminal can determine a unique uplink control channel resource from the uplink control channel resource set by using the CCE position occupied by the PDCCH carrying the DCI corresponding to the HARQ-ACK codebook and the value of 3 bits of the resource indication information in the DCI corresponding to the HARQ-ACK codebook, and use the unique uplink control channel resource as the time-frequency resource occupied by the HARQ-ACK codebook.

Wherein, the terminal device can be according to the following formula (1) and the CCE position occupied by the PDCCH of the DCI, the terminal deviceIndex number r of PUCCH resource determined by resource indication information in DCI_PUCCH。

Wherein N is_CCE,pThe total number of CCEs in the CORESET where the DCI is located is configured by high-level signaling;

n_CCE,pis the CCE location occupied by the PDCCH carrying the DCI;

Δ_PRIis resource indication information in the DCI, for example, a value indicated by a PUCCH resource indication field (resource indicator field);

R_PUCCHis the total number of PUCCH resources in the uplink control channel resource set, e.g., PUCCH resource set.

This equation (1) is equivalent to providing two offsets of the index number of the PUCCH resource, for example, a second offset determined based on the CCE location, a first offset determined based on the resource indication information. Accordingly, an index number may be determined based on the first offset and the second offset, and thus, PUCCH resources may be determined.

With R_PUCCHEqual to 16 for example, substituting equation (1) yields the following equation:

due to Delta_PRIHas a value of 0 to 7, so that_PRINot less than zero, so the equation (2) can be equivalent to:

as can be seen, in equation (3), based on the resource indication information Δ_PRIThe value range of (1) is 0-7, and the first deviation can be determined to be 0-7. CCE index based on CCE position belongs to total number N of CCEs_CCE,pFirst half or second half of (d), or the value of CCE index is smaller than N_CCE,p/2Or is greater than or equal to N_CCE,pAnd/2, determining that the second offset may be 0 or 1. The correspondence shown in table 1 below can be obtained:

TABLE 1

As can be seen, based on table 1, 16 PUCCH resources in the PUCCH resource set can be indicated based on the resource indication information (having 8 values) and the CCE location (having 2-valued intervals). For multiple TRPs, the terminal device may read the resource indication information and the CCE location occupied by the PDCCH carrying the DCI based on the DCI associated with each TRP or the DCI corresponding to the corresponding HARQ-ACK codebook, and further determine the PUCCH resource corresponding to each TRP.

For another example, equation (1) can be interpreted as follows: based on resource indication information delta_PRIThe value range of (A) is 0-7, namely the value indicated by the resource indication information has A, and A is equal to 8; based on a threshold value R_PUCCHmod A, when resource indication information Δ_PRILess than the threshold, the second offset B1 has

Value when resource indication information delta_PRIGreater than or equal to the threshold, the second offset B2 has

And (4) taking values. Wherein, B1 is 1+ B2. That is, based on the resource indication information and the CCE location may indicate

And one PUCCH resource.

With R_PUCCHEqualing 10 for example, substituting equation (1) yields the following equation:

wherein, the baseIn the resource indication information delta_PRIThe value range of (2) is 0-7, and the first half or the second half of the CCE index where the DCI is located in the total number of the CCEs can be obtained based on a formula (4) as follows:

TABLE 2

As shown in Table 2, at Δ_PRIWhen less than threshold 2, there are two rows of second offsets, with two selectable values, 0 or 1 respectively; at a_PRIGreater than or equal to threshold 2, the second offset has a row with an optional value of 0.

In another embodiment, if the uplink control channel resource set includes more PUCCH resources, the time-frequency resource occupied by the HARQ-ACK codebook is determined by resource indication information in DCI corresponding to the HARQ-ACK codebook, a CCE position occupied by a PDCCH carrying the DCI, and a downlink control related parameter associated with the HARQ-ACK codebook. That is, this embodiment enables each of a plurality of TRPs to indicate a sufficient amount of resources, ensuring scheduling flexibility of each TRP. For example, the number of resources available for the original uplink control channel resource set is 32, and the TRPs cannot use the same resource, so that the scheduling of the TRPs is flexibly limited, for example, TRP1 can only use resources 0 to 15, TRP2 can only use resources 16 to 32. Then if the total number of resources is allowed to rise to 64, so that each TRP can use 32 resources, the flexibility of scheduling PUCCH resources of each TRP can be guaranteed.

Therefore, in this embodiment, the terminal device determines the time-frequency resource occupied by the HARQ-ACK codebook according to the resource indication information in the DCI corresponding to the HARQ-ACK codebook, the CCE position occupied by the PDCCH carrying the DCI, and the highher layer index (index for short).

Optionally, the control resource set CORESET associated with the HARQ-ACK codebook may be a control resource set CORESET where a PDCCH carrying DCI corresponding to the HARQ-ACK codebook is located.

Referring to fig. 14, fig. 14 is a flowchart illustrating a method for determining uplink control channel resources according to an embodiment of the present application. As shown in fig. 14, the method for determining uplink control channel resources includes:

501. the terminal equipment receives downlink control information DCI;

502. and the terminal equipment determines the uplink control channel resource according to the resource indication information in the DCI, the CCE position of the control channel element and the high-level parameters in the control resource set CORESET.

For the feedback information of different TRPs, the corresponding uplink control channel resources may be determined based on the downlink control information associated with the feedback information respectively by using the embodiments related to 501 and 502. Wherein the higher layer parameters in the set of control resources associated with different TRPs are different.

In one embodiment, the terminal device determines a first resource number according to the resource indication information in the DCI and the CCE location occupied by the PDCCH carrying the DCI; the terminal equipment determines a second resource number according to the first resource number and the index number of the high-level parameter in the CORESET; and the terminal equipment determines the time-frequency resources occupied by the HARQ-ACK codebook from the uplink control channel resource set according to the second resource number.

Wherein, the index numbers of the high-level parameters in each CORESET in one control resource set (CORESET) group are the same, and the index numbers of the high-level parameters in the CORESETs in different CORESET groups are different. Wherein:

wherein the content of the first and second substances,

represents rounding down;alternatively, the first and second electrodes may be,

wherein the content of the first and second substances,

represents rounding up; alternatively, the first and second electrodes may be,

wherein [ x +0.5] represents rounding x.

In this embodiment, the terminal device determines the first resource number r according to the resource indication information in the DCI and the CCE location occupied by the PDCCH carrying the DCI_PUCCHCan be determined by using the following formula, and takes uplink control channel resources as PUCCH

Resources are taken as examples:

n_CCE,pis the CCE location occupied by the PDCCH carrying the DCI;

Δ_PRIis resource indicator information (PRI) in the DCI;

in this design, R_PUCCHAnd (4) determining the total number of PUCCH resources allocated to the CORESET group in which the CORESET is located based on the formula (5), the formula (6) or the formula (7).

For example, suppose that the terminal device is configured with two CORESET groups, index numbers of the high-level parameters in the two CORESET groups are 0 and 1 respectively, and the PUCCH resources with index numbers of 0 to 15 in the PUCCH resource set are allocated to the CORESET group with index number of 0 of the high-level parameters, and are recorded as PUCCH resource subset 1; middle indexing PUCCH resource setThe PUCCH resources with quotation marks 16 to 31 are allocated to the core set with index number 1 of the higher layer parameter, and are denoted as PUCCH resource subset 2. The first resource number is a temporary resource number of the PUCCH resource in the PUCCH resource subset 1 or the PUCCH resource subset 2, and for example, the first resource numbers of the PUCCH resources with index numbers of 0 to 15 in the PUCCH resource subset 1 are 0 to 15 in sequence; the first resource numbers of PUCCH resources having index numbers 16 to 31 in the PUCCH resource subset 2 are sequentially 0 to 15. Thus, it is assumed that the terminal device determines the first resource number r according to the above equation (8)_PUCCHEqual to 2, and the index number of the higher layer parameter in the CORESET associated with the HARQ-ACK codebook is 1, it may be determined that the second resource number is equal to 2+16, i.e. 18, and therefore, the PUCCH resource is: the first PUCCH resource with resource number 2 in PUCCH resource subset 2 is a PUCCH resource with index number 18 in the PUCCH resource set.

In another embodiment, it is different from the above embodiment in that even though there are many PUCCH resources in the PUCCH resource set, the PUCCH resources can still be determined based on the above formula (8), and thus r in the above formula (8)_PUCCHIt is the index number in the PUCCH resource set so that the PUCCH resource can be determined. That is, the terminal device may determine the PUCCH resource according to the resource indication information in the DCI and the CCE location occupied by the PDCCH carrying the DCI. However, if the HARQ-ACK codebooks requiring different TRPs use different PUCCH resources, negotiation between multiple TRPs is required to configure at least one of the resource indication information in the DCI corresponding to different TRPs or different HARQ-ACK codebooks and the CCE position occupied by the PDCCH of the DCI differently. The design is suitable for the situation that the number of selectable CCE starting positions is large, so that more PUCCH resources can be indicated. For example, assuming that the CCE starting position is 3 and the resource indication information is 3 bits, a maximum of 24 PUCCH resources may be indicated based on the CCE starting position and the resource indication information.

In this embodiment, when the terminal device is configured with a plurality of CORESET groups, and the index number of the higher-layer parameter in each CORESET group is different, and the terminal device has 8 CCE starting positions, the resource indication information is 3 bits, and more than 24 PUCCH resources, for example, 64 PUCCH resources, may be indicated based on the CCE starting positions and the resource indication information.

In still another embodiment, the time-frequency resource occupied by the HARQ-ACK codebook may be determined by using the following formula (9) and the resource indication information in the DCI corresponding to the HARQ-ACK codebook, the CCE position occupied by the PDCCH carrying the DCI, and the value of the high-layer parameter index associated with the HARQ-ACK codebook.

The index may be 0 or 1, and may also indicate a value of the 1 st group or a value of the 2 nd group in a plurality of control resource set groups configured by the terminal device. And C is the number of the control resource set groups configured by the terminal equipment.

Based on equation (9), the resource indication information may correspond to a first offset; the values of the CCE location and index may determine the second offset.

With R_PUCCHEqual to 32 for example, the resource indication information Δ_PRIThe value range of (3) and the first half or the second half of the total number of the CCEs of the CCE index where the DCI is located can be obtained according to the formula (9) as follows:

TABLE 3

In still another embodiment, the time-frequency resource occupied by the HARQ-ACK codebook may be determined by using the following formula (10) and the resource indication information in the DCI corresponding to the HARQ-ACK codebook, the CCE position occupied by the PDCCH carrying the DCI, and the value of the high-layer parameter index associated with the HARQ-ACK codebook.

The difference from equation (9) is that the formal variation of the second offset is determined based on the CCE location and the value of index.

Correspondingly, with R_PUCCHEqual to 32 for example, the resource indication information Δ_PRIThe value range of (1) is 0-7, and the first half or the second half of the CCE index where the DCI is located in the total number of the CCEs can be obtained based on a formula (10) as shown in the following table 4:

TABLE 4

In still another embodiment, the time-frequency resource occupied by the HARQ-ACK codebook may be determined by using the following formula (11) and the resource indication information in the DCI corresponding to the HARQ-ACK codebook, the CCE position occupied by the PDCCH carrying the DCI, and the value of the high-layer parameter index associated with the HARQ-ACK codebook.

The difference from equation (9) is based on the resource indication information Δ_PRIAnd the value of index determines a first offset, and a second offset based on the CCE location.

Correspondingly, with R_PUCCHEqual to 32 for example, the resource indication information Δ_PRIThe value range of (2) is 0-7, and the first half or the second half of the total number of the CCEs of the CCE index where the DCI is located can be obtained according to the formula (11) as follows:

TABLE 5

In still another embodiment, the following formula (12) and the resource indication information in the DCI corresponding to the HARQ-ACK codebook, the CCE position occupied by the PDCCH carrying the DCI, and the value of the high-layer parameter index associated with the HARQ-ACK codebook may be used to determine the time-frequency resource occupied by the HARQ-ACK codebook.

Equation (12) differs from equation (11) in that equation (12) is based on resource indication information Δ_PRIAnd the specific way in which the value of index determines the first offset. Correspondingly, with R_PUCCHEqual to 32 for example, the resource indication information Δ_PRIThe value range of (2) is 0-7, and the first half or the second half of the total number of the CCEs of the CCE index where the DCI is located can be obtained according to a formula (12) as follows:

TABLE 6

One PDCCH may occupy one or more CCEs. The more CCEs occupied, the higher the reliability of PDCCH. One CCE is composed of 6 Resource Element Groups (REGs), and a resource of one REG is composed of one Resource Block (RB) in the frequency domain and one symbol in the time domain. Each REG has a mapping relationship with each CCE, and may be directly mapped, for example, 6 consecutive REGs constitute one CCE; or may be interleaving mapping, such as mapping the interleaved REGs to CCEs.

In this embodiment of the application, the downlink control related parameter may include a physical downlink control channel configuration parameter (PDCCH-Config), a control resource set (core sets), a control resource set group (core set group), or the like. The PDCCH-Config includes parameters for detecting a candidate downlink control channel (PDCCH). CORESET is used to define the frequency domain resources where PDCCH may be detected.

And the downlink control related parameters associated with one or more PDCCHs associated with the HARQ-ACK codebook of the same network equipment are the same. The HARQ-ACK codebooks of different network devices are respectively associated with different PDCCH associated downlink control related parameters.

The downlink control related parameters are different, and may also mean that one network device is configured with the downlink control related parameters, and another network device is not configured. For example, based on whether the CORESET associated with the PDCCH includes a high layer parameter (high layer index), it may be determined that HARQ-ACK information bits corresponding to a PDSCH scheduled by the PDCCH associated with the CORESET including the high layer parameter belong to one TRP, and HARQ-ACK information bits corresponding to a PDSCH scheduled by the PDCCH associated with the CORESET not including the high layer parameter belong to another TRP.

Therefore, the terminal can distinguish which HARQ-ACK information bits of downlink data scheduled by DCI and carried by the PDCCH belong to different HARQ-ACK codebooks and which HARQ-ACK information bits of downlink data scheduled by DCI and carried by the PDCCH belong to the same HARQ-ACK codebook based on the downlink control related parameters associated with the PDCCH.

In the embodiment of the application, the downlink control related parameters respectively associated with the first feedback information and the second feedback information are different. That is, the first feedback information and the second feedback information belong to different network devices.

For example, the downlink control related parameter associated with the first feedback information is a control resource set 1; the downlink control related parameter associated with the second feedback information is control resource set 2. However, the higher layer parameter (highher layer index 0) in the control resource set 1 is different from the higher layer parameter (highher layer index 1) in the control resource set 2. And the values of the high-level parameters related to the feedback information of different network equipment are different.

For another example, if the control resource set 1 does not have a high-level parameter (high layer index) configured therein, and the control resource set 2 has a high-level parameter (high layer index 1) configured therein, it may be considered that the downlink control related parameter associated with the first feedback information is different from the downlink control related parameter associated with the second feedback information.

For example, if different Transmission Configuration Indication (TCI) states are configured in the control resource set 1 and the control resource set 2, it may be considered that the downlink control related parameter associated with the first feedback information is different from the downlink control related parameter associated with the second feedback information.

Optionally, the priority between the first feedback information and the second feedback information may be determined based on a downlink control related parameter associated with the first feedback information and a downlink control related parameter associated with the second feedback information.

For example, the priority of the feedback information is determined based on whether the downlink control related parameters associated with the feedback information include a specific parameter or a specific parameter value. For another example, the priority of the feedback information is determined based on the size of a parameter value in the downlink control related parameter associated with the feedback information. The parameter value may be a value of a higher-layer parameter, or a value (e.g., index) of a TCI state in a control resource set. For another example, the priority of the feedback information is determined based on whether semi-persistent scheduling (SPS) PDSCHs are included in PDSCHs respectively scheduled by one or more PDCCHs associated with the feedback information. For another example, the priority of the feedback information is determined based on the number of SPS PDSCHs included in PDSCHs respectively scheduled by one or more PDCCHs associated with the feedback information.

Referring to fig. 4, fig. 4 is a schematic diagram of a wireless communication system according to an embodiment of the disclosure. As shown in fig. 4, the wireless communication system may include: a plurality of network devices (e.g., TRPs), one or more terminals. Wherein: the network device may be arranged to communicate with the terminal over the wireless interface under the control of a network device controller (not shown). In some embodiments, the network device controller may be part of a core network or may be integrated into a network device. The network devices may be configured to transmit control information or user data to the core network via a backhaul (backhaul) interface. Specifically, as shown in fig. 4, the TRP1 and the TRP2 communicate with each other directly or indirectly through a backhaul interface. In addition, multiple network devices may schedule the same terminal, i.e., a multi-station cooperative transmission scenario. The backhaul interface may be over the air interface or a wired connection.

As shown in fig. 4, in the wireless communication system, TRP1 and TRP2 may transmit different downlink control information to a terminal, respectively, where the different downlink control information is carried on different Physical Downlink Control Channels (PDCCHs) and each downlink data is scheduled.

For example, assuming that the higher layer signaling indicates a plurality of timing offset values K1set { K0 ═ 4, K1 ═ 3}, and the time unit is a slot, and the uplink and downlink subcarrier intervals are the same, as shown in fig. 5, the TRP1 schedules slot n to transmit PDSCH0 through DCI0 carried by PDCCH0, schedules slot n +1 to transmit PDSCH1 through DCI1 carried by PDCCH1, and the terminal determines HARQ-ACK information bits corresponding to PDSCH0 and PDSCH1 respectively to be fed back on slot n +4 in one HARQ-ACK codebook 1 based on the timing offset value configured by the higher layer signaling or the timing offset values indicated by the higher layer signaling in combination with DCI0 and DCI 1. That is, the HARQ-ACK codebook 1 includes HARQ-ACK information bits of the PDSCH0 and HARQ-ACK information bits of the PDSCH 1. The PDCCHs associated with the HARQ-ACK codebook 1 are PDCCH0 and PDCCH 1. The DCI corresponding to the HARQ-ACK codebook 1 is a DCI1 carried on a PDCCH1 at the latest PDCCH reception timing or PDCCH detection timing among PDCCH0 and PDCCH 1. The time-frequency resource occupied by the HARQ-ACK codebook 1 is determined based on the resource indication information in the DCI1 corresponding to the HARQ-ACK codebook 1. The time unit of the time frequency resource occupied by the HARQ-ACK codebook 1 is slot n + 4.

TRP2 schedules slot n to transmit PDSCH2 through DCI2 carried by PDCCH2, schedules slot n +1 to transmit PDSCH3 through DCI3 carried by PDCCH3, and assumes that HARQ-ACK codebook 2 needing to be fed back on slot n +4 is obtained based on the above-mentioned high-layer signaling or the combination of the high-layer signaling and the indication of DCI. The HARQ-ACK codebook 2 includes HARQ-ACK information bits of the PDSCH2 and HARQ-ACK information bits of the PDSCH 3. The PDCCHs associated with the HARQ-ACK codebook 2 are PDCCH2 and PDCCH 3. The DCI corresponding to the HARQ-ACK codebook 2 is a DCI3 carried by a PDCCH3 at the latest PDCCH reception timing or PDCCH detection timing among PDCCH2 and PDCCH 3. The time-frequency resource occupied by the HARQ-ACK codebook 2 is determined based on the resource indication information in the DCI3 corresponding to the HARQ-ACK codebook 2. The time unit of the time-frequency resource occupied by the HARQ-ACK codebook 2 is slot n + 4.

Therefore, for a terminal, for the same uplink time unit, a plurality of HARQ-ACK codebooks associated with different TRPs exist, and when the terminal generates joint feedback information for the plurality of HARQ-ACK codebooks and when at least one of the plurality of HARQ-ACK codebooks is fed back respectively, the present application provides a feedback information transmission method, which can determine when to adopt independent feedback and when to adopt joint feedback for the plurality of HARQ-ACK codebooks. The following is set forth in connection with the accompanying drawings.

Referring to fig. 6, fig. 6 is a schematic flowchart illustrating a feedback information transmission method according to the present application. As shown in fig. 6, the feedback information transmission method may include the steps of:

101. and the terminal determines first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information.

Wherein, the terminal may perform step 102 when the first resource indication information is the same as the second resource indication information; when the first resource indication information is different from the second resource indication information, the terminal may perform at least one of step 103 and step 104.

102. The terminal generates joint feedback information based on the first feedback information and the second feedback information.

103. And the terminal feeds back the first feedback information.

104. And the terminal feeds back the second feedback information.

Therefore, the terminal can determine the feedback mode among the plurality of feedback information without receiving an additional signaling indication, and signaling overhead is saved. In addition, the terminal generates the joint feedback information and the terminal generates the independent feedback information, and for the terminal, the difference between the two modes is small, so that the terminal can determine the feedback modes after determining the two feedback information respectively aiming at different network devices.

The terminal may determine a first DCI corresponding to the first feedback information and a second DCI corresponding to the second feedback information based on the relevant description of the DCI corresponding to the HARQ-ACK codebook. The first DCI corresponding to the first feedback information may be a last DCI of the first feedback information. Correspondingly, the second DCI corresponding to the second feedback information may be the last DCI of the second feedback information.

In one embodiment, the determining, by the terminal, a first DCI corresponding to the first feedback information and a second DCI corresponding to the second feedback information includes: the terminal determines first DCI corresponding to first feedback information based on downlink control channel detection opportunity of each downlink control channel associated with the first feedback information; and the terminal determines second DCI corresponding to the second feedback information based on the downlink control channel detection time of each downlink control channel associated with the second feedback information.

The first DCI is a DCI carried by a downlink control channel that is closest to a detection opportunity of a downlink control channel in each downlink control channel associated with the first feedback information, that is, the first DCI is a last DCI corresponding to the first feedback information. The second DCI is a DCI carried by a downlink control channel that is closest to the back of the downlink control channel detection opportunity in the downlink control channels associated with the second feedback information, that is, the second DCI is the last DCI corresponding to the second feedback information.

In another embodiment, the determining, by the terminal, a first DCI corresponding to the first feedback information and a second DCI corresponding to the second feedback information includes: the terminal determines first DCI corresponding to first feedback information based on downlink control channel receiving time of each downlink control channel associated with the first feedback information; and the terminal determines second DCI corresponding to the second feedback information based on the downlink control channel receiving time of each downlink control channel associated with the second feedback information.

The first DCI is a DCI carried by a downlink control channel with the most backward downlink control channel receiving time in each downlink control channel associated with the first feedback information; and the second DCI is DCI carried by the downlink control channel with the most backward downlink control channel receiving time in each downlink control channel associated with the second feedback information.

In an embodiment, the terminal generates the joint feedback information based on the first feedback information and the second feedback information, and may be: and the terminal generates the first feedback information and the second feedback information into combined feedback information based on the downlink control related parameters related to the first feedback information and the downlink control related parameters related to the second feedback information.

For example, the order in which the first feedback information and the second feedback information are combined may be determined based on the priorities of the two. For example, feedback information with high priority may be ranked first, and feedback information with low priority may be ranked later. Alternatively, feedback information with high priority may be arranged later, and feedback information with low priority may be arranged earlier.

The priority between the first feedback information and the second feedback information may be determined based on the above-mentioned downlink control related parameters. As described above, the relationship between the downlink control related parameters and the priority of the feedback information may be set by protocol pre-definition or RRC signaling configuration.

For example, as shown in fig. 7, the downlink control related parameter associated with the first feedback information is a control resource set 1; the downlink control related parameter associated with the second feedback information is control resource set 2. The control resource set 1 is configured with a high-level parameter (higher layer index)0, and the control resource set 2 is configured with a high-level parameter (higher layer index 1), so that the priority of the downlink control related parameter associated with the first feedback information can be lower than the priority of the downlink control related parameter associated with the second feedback information. Therefore, in fig. 7, the first feedback information may be merged after the second feedback information.

For another example, if no higher layer parameter (highher layer index) is configured in the control resource set 1 associated with the first feedback information, and a higher layer parameter (highher layer index 1) is configured in the control resource set 2 associated with the second feedback information, the first feedback information may be arranged before the second feedback information.

For another example, if different Transmission Configuration Indication (TCI) states are configured in the control resource set 1 and the control resource set 2, the feedback information with the larger index number of the TCI state may be arranged before the feedback information with the smaller index number of the TCI state.

For another example, the rank order of the feedback information in the joint feedback information is determined based on whether the downlink control related parameters associated with the feedback information include a specific parameter or a specific parameter value.

For another example, based on the size of a parameter value in the downlink control related parameter associated with the feedback information, the rank order of the feedback information in the joint feedback information is determined.

For another example, based on whether the PDSCH respectively scheduled by one or more PDCCHs associated with the feedback information includes a Semi Persistent Scheduling (SPS) PDSCH, the order of arrangement of the feedback information in the joint feedback information is determined.

For another example, based on the number of SPS PDSCHs included in the PDSCHs respectively scheduled by one or more PDCCHs associated with the feedback information, the order of the feedback information in the joint feedback information is determined.

The arrangement mode of each HARQ-ACK information bit in the first feedback information and the second feedback information may be determined based on a PDSCH receiving timing corresponding to each HARQ-ACK information bit, an index number of a time slot in which downlink data is located, a cell identifier for transmitting the downlink data, and the like. The embodiments of the present application are not limited.

Take an example of the HARQ-ACK information bit arrangement in one HARQ-ACK codebook. When the terminal is configured with a plurality of cells, the sequence of the PDSCH receiving occasions corresponding to different cells is arranged based on the order of the cell identifiers. The sequence of the PDSCH receiving opportunities among different time slots of the same cell is arranged based on the sequence of the index numbers of the time slots in which the downlink data are positioned. In the same slot, the PDSCH reception timing arrangement order is arranged based on a labeling order in which the time domain resource allocation method corresponding to the PDSCH reception timing is labeled as PDSCH reception timing. Further, based on the order of the arranged PDSCH reception timings, HARQ-ACK information bits corresponding to the PDSCH reception timings are arranged to obtain an HARQ-ACK codebook.

Assuming that a terminal is configured with a cell 1 and a cell 2, a time slot of a PDSCH0 in the cell 1 and a time slot of a PDSCH1 in the cell 1 are both time slots 0, and a time slot of a PDSCH2 in the cell 1 is time slot 1; the PDSCH reception timing corresponding to PDSCH0 is PDSCH reception timing 0; the PDSCH reception timing corresponding to PDSCH1 is PDSCH reception timing 1; the PDSCH reception timing corresponding to PDSCH2 is PDSCH reception timing 2. The time slot of PDSCH3 in cell 2 is time slot0, and the PDSCH reception timing corresponding to PDSCH3 is PDSCH reception timing 3. The cell identifiers are arranged from large to small, the index numbers of the time slots are arranged from large to small, and the PDSCH receiving occasions are also arranged from large to small, so that the sequence of the arranged PDSCH receiving occasions can be as follows: [ PDSCH reception opportunity 3] [ (PDSCH reception opportunity 2) (PDSCH reception opportunity 1, PDSCH reception opportunity 0) ].

In an embodiment, the terminal respectively feeds back at least one of the first feedback information and the second feedback information, and may be: the terminal determines time-frequency resources occupied by the first feedback information and a time unit occupied by the first feedback information based on the time unit indication information of the first feedback information and the first resource indication information; determining time-frequency resources occupied by the second feedback information and a time unit occupied by the second feedback information based on the time unit indication information of the second feedback information and the second resource indication information; furthermore, the terminal can send the first feedback information on the time frequency resource occupied by the first feedback information in the time unit where the first feedback information is located; and sending the second feedback information on the time frequency resource occupied by the second feedback information in the time unit where the second feedback information is located, namely executing step 103 and step 104.

In another embodiment, when the time-frequency resource occupied by the first feedback information overlaps with the time-frequency resource occupied by the second feedback information, the terminal may select to feed back one of the feedback information based on the priority between the first feedback information and the second feedback information.

For example, the first feedback information and the second feedback information satisfy one or more of the following conditions: the priority of the first feedback information is higher than that of the second feedback information; the priority of the downlink control related parameter associated with the first feedback information is higher than the priority of the downlink control related parameter associated with the second feedback information. Then, when the time frequency resource occupied by the first feedback information overlaps with the time frequency resource occupied by the second feedback information, the terminal may feed back the first feedback information, and not feed back the second feedback information, that is, step 103 is executed.

In another embodiment, when the time-frequency resource occupied by the first feedback information overlaps with the time-frequency resource occupied by the second feedback information, the terminal may select to feed back one of the feedback information based on the downlink control related parameters respectively associated with the first feedback information and the second feedback information.

For example, the index number of the high-level parameter in the control resource set associated with the first feedback information is greater than the index number of the high-level parameter in the control resource set associated with the second feedback information; the terminal may feed back the first feedback information and not feed back the second feedback information. For example, the downlink control related parameter associated with the first feedback information is a control resource set 1; the downlink control related parameter associated with the second feedback information is control resource set 2. Configuring a high-level parameter (higher layer index)0 in the control resource set 1, and configuring a high-level parameter (higher layer index 1) in the control resource set 2, so that the terminal can feed back the second feedback information without feeding back the first feedback information when the time-frequency resource occupied by the first feedback information and the time-frequency resource occupied by the second feedback information overlap with each other, namely, step 104 is executed.

For another example, the index number of the high-level parameter in the control resource set associated with the first feedback information is smaller than the index number of the high-level parameter in the control resource set associated with the second feedback information; in the above example, the terminal may feed back the first feedback information and not feed back the second feedback information, i.e. step 103 is executed.

For another example, whether to preferentially feed back the feedback information when the time-frequency resources are overlapped is determined based on whether the downlink control related parameters associated with the feedback information include specific types of parameters or specific parameter values. For example, if the control resource set 1 associated with the first feedback information does not have a high layer parameter (high layer index) configured therein, and the control resource set 2 associated with the second feedback information has a high layer parameter (high layer index 1) configured therein, the terminal may feed back the second feedback information without feeding back the first feedback information when the time-frequency resource occupied by the first feedback information overlaps with the time-frequency resource occupied by the second feedback information, that is, step 104 is executed.

For another example, different Transmission Configuration Indication (TCI) states are configured in the control resource set 1 and the control resource set 2, and the terminal may determine the feedback information that is preferentially fed back when the time-frequency resources occupied by the multiple feedback information overlap based on the size of the index number of the TCI state.

The overlapping of the time frequency resource occupied by the first feedback information and the time frequency resource occupied by the second feedback information may include partial overlapping and complete overlapping.

Optionally, the overlapping of the time-frequency resource occupied by the first feedback information and the time-frequency resource occupied by the second feedback information may include: the time frequency resources occupied by the first feedback information and the time frequency resources occupied by the second feedback information are overlapped in a time domain, or overlapped in a frequency domain, or overlapped in a time frequency domain.

It can be seen that, in this embodiment, the terminal may determine, based on whether first resource indication information of the first feedback information is the same as second resource indication information of the second feedback information, whether to generate joint feedback information for the first feedback information and the second feedback information, or to feed back at least one of the first feedback information and the second feedback information separately. Without requiring additional signaling indications, thereby facilitating savings in signaling overhead.

For example, in fig. 5, the time-frequency resources occupied by HARQ-ACK codebook 1 are the same as the time-frequency resources occupied by HARQ-ACK codebook 2, and the terminal combines HARQ-ACK codebook 1 and HARQ-ACK codebook 2 to generate one HARQ-ACK codebook. Wherein, the time unit of the time frequency resource occupied by the HARQ-ACK codebook is also a time slot n + 4; the time-frequency resource occupied by the HARQ-ACK codebook can be determined based on the above rule, the bit number of the HARQ-ACK codebook and the resource indication information in the DCI associated with the HARQ-ACK codebook, or the bit number of the HARQ-ACK codebook, the resource indication information in the DCI associated with the HARQ-ACK codebook and the CCE position occupied by the PDCCH bearing the DCI.

The DCI corresponding to the joint feedback information is determined based on the PDCCH receiving time or PDCCH detection time of each PDCCH related to the joint feedback information. The PDCCHs associated with the joint feedback information include the PDCCHs associated with the first feedback information and the PDCCHs associated with the second feedback information. For example, the DCI corresponding to the joint feedback information is a DCI carried by a PDCCH that is the most late in PDCCH reception time or PDCCH detection timing among the PDCCHs associated with the joint feedback information.

Correspondingly, in fig. 5, the DCI corresponding to the HARQ-ACK codebook generated by combining the HARQ-ACK codebook 1 and the HARQ-ACK codebook 2 is: PDCCH0, PDCCH1, PDCCH2, PDCCH3, or the PDCCH carried DCI with the PDCCH closest to the PDCCH detection occasion.

Referring to fig. 8, fig. 8 is a schematic flowchart of another feedback information transmission method according to an embodiment of the present application, and as shown in fig. 8, the feedback information transmission method may include the following steps:

201. the terminal judges whether the time unit indicated by the first time unit indication information is the same as the time unit indicated by the second time unit indication information; if the two are the same, executing step 202, otherwise, executing step 204;

the first time unit indication information is used for indicating a time unit in which the time frequency resource occupied by the first feedback information is located; and the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information.

202. The terminal judges whether the first resource indication information is the same as the second resource indication information, if so, the step 203 is executed; if not, go to step 204;

203. and the terminal generates joint feedback information based on the first feedback information and the second feedback information.

204. And the terminal feeds back at least one of the first feedback information and the second feedback information respectively.

It can be seen that, in this embodiment, the terminal may determine, based on the time unit indication information and the resource indication information of the feedback information, whether to generate joint feedback information for the first feedback information and the second feedback information, or to feed back at least one of the first feedback information and the second feedback information separately. Without requiring additional signaling indications, thereby facilitating savings in signaling overhead.

For example, as shown in fig. 9, fig. 9 is different from fig. 5 in that the timing offset value configured by the higher layer signaling further includes that k2 is 2, the TRP1 schedules the slot n to transmit PDSCH0 through DCI0 carried by PDCCH0, the DCI1 carried by PDCCH1 schedules slot n +1 to transmit PDSCH1, and the terminal determines, based on the timing offset value configured by the higher layer signaling or the timing offset value respectively indicated by the higher layer signaling in combination with DCI0 and DCI1, that HARQ-ACK information bits respectively corresponding to PDSCH0 and PDSCH1 can be fed back on slot n +3 in one HARQ-ACK codebook 1. Namely, the time unit of the time-frequency resource occupied by the HARQ-ACK codebook 1 is slot n + 3. Therefore, with respect to fig. 9, the terminal may feed back HARQ-ACK codebook 1 and HARQ-ACK codebook 2, respectively.

In one embodiment, the terminal determines whether the bit number of the first feedback information and the bit number of the second feedback information correspond to the same uplink control channel resource set respectively. For example, the feedback bit number range corresponding to the uplink control channel resource set 1 is between zero and 2 bits, such as [0,2 ]; the feedback bit number range corresponding to the uplink control channel resource set 2 is between 2 bits and 3 bits, for example, (2, 3). when the bit number of the first feedback information and the bit number of the second feedback information both belong to the same feedback bit number range, it can be considered that the bit number of the first feedback information and the bit number of the second feedback information respectively correspond to the same uplink control channel resource set.

If they correspond to the same uplink control channel resource set, step 202 can be executed; if the uplink control channel resource sets do not correspond to the same uplink control channel resource set, that is, the uplink control channel resource sets respectively correspond to different uplink control channel resource sets, step 204 may be executed.

In an embodiment, as described above, when the number of uplink control channel resources included in the uplink control channel resource set corresponding to the bit number of the feedback information is large, the terminal further needs to determine the time domain resource occupied by the feedback information based on the CCE position occupied by the PDCCH carrying the DCI corresponding to the feedback information. For example, the terminal determines whether the CCE location of the first control channel element is the same as the CCE location of the second control channel element; if the two are the same, step 202 is executed, and if the two are different, step 204 is executed. The first CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the first DCI; and the second CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the second DCI.

Therefore, the more the terminal judges, the more the feedback mode of the feedback information determined by the terminal matches the characteristics of the feedback information, so that the terminal and the network device can select which implementation modes to determine when to perform joint feedback and when to perform separate feedback on the feedback information in a mode predefined by a protocol. Alternatively, the network device may instruct the terminal which operations in the related embodiments shown in fig. 6 and fig. 8 are adopted according to the processing capability of the terminal to determine when to perform joint feedback and when to perform separate feedback.

In addition, in the feedback information transmission methods shown in fig. 6 and 8, the terminal may send the joint feedback information to each network device, or to one of the network devices. And the terminal respectively feeds back at least one of the first feedback information and the second feedback information to the corresponding network equipment.

Referring to fig. 10, fig. 10 is a schematic flowchart illustrating another feedback information transmission method according to an embodiment of the present application. Fig. 10 is illustrated from the perspective of the network device side.

301. The network equipment determines first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information;

302. when the first resource indication information is the same as the second resource indication information, the network device determines that feedback information fed back by the terminal device is joint feedback information generated based on the first feedback information and the second feedback information;

303. and when the first resource indication information is different from the second resource indication information, the network equipment determines that the first feedback information or the second feedback information fed back by the terminal equipment is fed back independently.

When the network device determines that the feedback information fed back by the terminal device is the joint feedback information generated based on the first feedback information and the second feedback information, the network device may receive the joint feedback information sent by the terminal on the time-frequency resource corresponding to the joint feedback information, and the network device may analyze its own information or the joint feedback information at the corresponding bit position. If the situation of the joint feedback information is analyzed, the network device may also send feedback information associated with other network devices in the joint feedback information to the corresponding other network devices.

For example, as shown in fig. 7, it is assumed that the first feedback information is associated with TRP1 and the second feedback information is associated with TRP 2. The TRP1 can analyze self first feedback information from the joint feedback information based on self-associated downlink control related parameters; correspondingly, the TRP2 may also receive the joint feedback information, and may parse its second feedback information from the joint feedback information according to its associated downlink control related parameter. Or the TRP1 analyzes the first feedback information and the second feedback information from the joint feedback information based on the downlink control related parameters associated with the TRP1 and the downlink control related parameters associated with the TRP 2; and transmits the second feedback information to the TRP 2.

The network device determines that the first feedback information or the second feedback information fed back by the terminal device is fed back independently, and then the network device may receive the feedback information sent by the terminal on the time-frequency resource occupied by the feedback information associated with the network device. For example, assume that the first feedback information is associated with TRP1 and the second feedback information is associated with TRP 2. The TRP1 may receive the first feedback information sent by the terminal on the time frequency resource occupied by the first feedback information, and/or the TRP2 may receive the second feedback information sent by the terminal on the time frequency resource occupied by the second feedback information. For example, when the time-frequency resources occupied by the first feedback information and the second feedback information respectively overlap, one of the TRP1 and TRP2 may not receive the feedback information. In an implementation manner, when the network device determines that the time-frequency resources occupied by the first feedback information and the second feedback information respectively overlap, it may further determine which of the first feedback information and the second feedback information is sent by the terminal based on downlink control related parameters respectively associated with the first feedback information and the second feedback information, or based on a priority between the first feedback information and the second feedback information. Specifically, it can be seen how the terminal determines which of the first feedback information and the second feedback information is to be sent and which of the first feedback information and the second feedback information is not to be sent based on the priority between the first feedback information and the second feedback information or the downlink control related parameters associated respectively.

In another embodiment, when the first resource indication information is different from the second resource indication information, the determining, by the network device, that the first feedback information or the second feedback information fed back by the terminal device is fed back independently includes: when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information do not overlap in a time domain, the network device determines that the terminal respectively feeds back the first feedback information and the second feedback information.

Therefore, the network device can determine, based on a rule similar to that of the terminal device side, whether the feedback information fed back by the terminal is joint feedback information generated based on the first feedback information and the second feedback information, or whether the first feedback information or the second feedback information fed back by the terminal is fed back independently. Reference may be made to the related matters shown in fig. 6 to 9.

Referring to fig. 11, fig. 11 is a flowchart illustrating another feedback information transmission method according to an embodiment of the present application. The feedback information transmission method shown in fig. 11 is explained from the perspective of the network device side compared to fig. 8, and may include the following steps:

401. the network equipment judges whether the time unit indicated by the first time unit indication information is the same as the time unit indicated by the second time unit indication information; if the two are the same, executing step 202, otherwise, executing step 204;

402. The network device determines whether the first resource indication information is the same as the second resource indication information, and if so, executes step 203; if not, go to step 204;

403. the network equipment determines that the feedback information fed back by the terminal equipment is joint feedback information generated based on the first feedback information and the second feedback information.

404. The network equipment determines that the first feedback information or the second feedback information fed back by the terminal equipment is fed back independently.

In the embodiment shown in fig. 11, the network device determines whether the feedback mode of the terminal is joint feedback or independent feedback, which may refer to the related content described in fig. 10 above and will not be described in detail here.

Therefore, the network device can determine, based on a rule similar to that of the terminal device side, whether the feedback information fed back by the terminal is joint feedback information generated based on the first feedback information and the second feedback information, or whether the first feedback information or the second feedback information fed back by the terminal is fed back independently. Therefore, the network equipment can correctly decode the feedback information fed back by the terminal.

Other relevant contents of fig. 10 and 11 can refer to the relevant contents shown in fig. 6 to 9 described above. And will not be described in detail herein.

In the embodiments provided in the present application, the method provided in the embodiments of the present application is introduced from the perspective of a network device, a terminal, and interaction between the network device and the terminal. In order to implement the functions in the method provided by the embodiments of the present application, the network device and the terminal may include a hardware structure and a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure and a software module. Some of the above functions may be implemented by a hardware structure, a software module, or a hardware structure plus a software module.

Referring to fig. 12, fig. 12 is a schematic structural diagram of an apparatus according to an embodiment of the present disclosure. The apparatus may be configured to implement the method described in the method embodiment, and refer to the description in the method embodiment.

The apparatus may include one or more processors 1201. The processor 1201 may also be referred to as a processing unit, and may implement the functions of a network device or a terminal device in the method provided by the embodiment of the present application. The processor 1201 may be a general purpose processor, a special purpose processor, or the like. The processor 1201 may be referred to as a processing unit, and controls the apparatus 1200.

In an alternative design, the processor 1201 may also have instructions 1203 stored therein, and the instructions 1203 may be executed by the processor, so that the apparatus 1200 performs the method described in the above method embodiment.

In another alternative design, a communication unit to perform receive and transmit functions may be included in the processor 1201. The communication unit may be, for example, a transceiver circuit, or an interface circuit. The processor 1201 can implement, by the communication unit, a method performed by a network device or a method performed by a terminal device in the methods provided by the embodiments of the present application.

Optionally, the apparatus 1200 may include one or more memories 1202, on which instructions 1204 may be stored. The instructions may be executable on the processor to cause the apparatus 1200 to perform the methods described in the method embodiments above. Optionally, the memory may further store data therein. The processor 1201 and the memory 1202 may be provided separately or integrated together.

Optionally, the apparatus 1200 may further include a transceiver 1205, an antenna 1206. The transceiver 1205 may be referred to as a communication unit, a transceiver, a transceiving circuit or a transceiver, etc., for implementing transceiving functions.

In one embodiment, an apparatus (e.g., a chip, an integrated circuit, a wireless device, a circuit module in a terminal, or a terminal) includes:

the processing unit is further configured to generate joint feedback information based on the first feedback information and the second feedback information, where the first resource indication information is the same as the second resource indication information; a communication unit, configured to send the joint feedback information;

when the first resource indication information is different from the second resource indication information, the processing unit is further configured to determine to feed back at least one of the first feedback information and the second feedback information respectively; the communication unit is configured to feed back at least one of the first feedback information and the second feedback information, respectively.

In another embodiment, an apparatus (e.g., a chip, an integrated circuit, a wireless device, a circuit module in a terminal, or a terminal) comprises:

the processing unit is further configured to determine to feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information or when the first time unit indication information is different from the second time unit indication information; a communication unit, configured to send at least one of the first feedback information and the second feedback information, respectively.

In one embodiment, an apparatus 1200 (e.g., a network device, a base station, a DU or CU, a TRP or a baseband chip) includes:

the processing unit is configured to determine that feedback information fed back by the terminal device is joint feedback information generated based on the first feedback information and the second feedback information, where the first resource indication information is the same as the second resource indication information; a communication unit for receiving the joint feedback information;

when the first resource indication information is different from the second resource indication information, the processing unit is configured to determine that the first feedback information or the second feedback information fed back by the terminal device is fed back independently; the communication unit is configured to receive the first feedback information or the second feedback information.

In another embodiment, an apparatus 1200 (e.g., a network device, a base station, a DU or CU, a TRP or a baseband chip) comprises:

In one possible design, an apparatus 1200 (e.g., a chip in a terminal, an integrated circuit, a wireless device, a circuit module, or a terminal) may include:

a processor 1201, configured to determine a first downlink control information DCI corresponding to the first feedback information and a second DCI corresponding to the second feedback information;

the processor 1201 is further configured to generate joint feedback information based on the first feedback information and the second feedback information, where the first resource indication information is the same as the second resource indication information; a transceiver 1205 for transmitting the joint feedback information;

when the first resource indication information is different from the second resource indication information, the processor 1201 is further configured to determine to feed back at least one of the first feedback information and the second feedback information, respectively; the transceiver 1205 is configured to feed back at least one of the first feedback information and the second feedback information respectively.

Therefore, the apparatus 1200 can determine the feedback mode among a plurality of feedback information without receiving an additional signaling indication, thereby saving signaling overhead.

In addition, in this design, how the processor 1201 determines the first feedback information from the N feedback information may refer to relevant contents in the above method embodiment. When there are N pieces of feedback information and CSI in one uplink time unit, how to process may also be referred to the relevant content in the above method embodiment, and details are not described here.

In another possible design, an apparatus 1200 (e.g., a chip in a terminal, an integrated circuit, a wireless device, a circuit module, or a terminal) may include:

a processor 1201, configured to generate joint feedback information based on first feedback information and second feedback information when first time unit indication information is the same as the second time unit indication information and first resource indication information is the same as the second resource indication information; a transceiver 1205 for transmitting the joint feedback information;

the processor 1201 is further configured to determine to respectively feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information or the first time unit indication information is different from the second time unit indication information; a transceiver 1205 for feeding back at least one of the first feedback information and the second feedback information, respectively.

In one possible design, an apparatus 1200 (e.g., a network device, a base station, a DU or CU, a TRP or baseband chip) may include:

the processor 1201 is configured to determine that feedback information fed back by a terminal device is joint feedback information generated based on the first feedback information and the second feedback information, when the first resource indication information is the same as the second resource indication information; a transceiver 1205 for receiving joint feedback information;

the processor 1201 is configured to determine that the first feedback information or the second feedback information fed back by the terminal device is fed back independently when the first resource indication information is different from the second resource indication information; the transceiver 1205 is configured to receive the first feedback information or the second feedback information.

In another possible design, an apparatus 1200 (e.g., a network device, a base station, a DU or CU, a TRP or baseband chip) may include:

the processor 1201 is configured to determine that feedback information fed back by the terminal is joint feedback information generated based on the first feedback information and the second feedback information when the first time unit indication information is the same as the second time unit indication information and the first resource indication information is the same as the second resource indication information; a transceiver 1205 for receiving joint feedback information;

the processor 1201 is configured to determine that first feedback information or second feedback information fed back by the terminal is independent when first resource indication information is different from second resource indication information or first time unit indication information is different from second time unit indication information; a transceiver 1205 for receiving the first feedback information or the second feedback information;

Fig. 13 provides a schematic structural diagram of a terminal device. The terminal device can be applied to the scenes shown in fig. 1 and 2. For convenience of explanation, fig. 13 shows only main components of the terminal device. As shown in fig. 13, the terminal device includes a processor 1312, a memory, a control circuit, an antenna, and input-output means. The processor 1312 is mainly used for processing communication protocols and communication data, controlling the entire terminal, executing software programs, and processing data of the software programs. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal device is powered on, the processor 1312 may read the software program in the storage unit, parse 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 baseband signals to the radio frequency circuit, and the radio frequency circuit processes the baseband signals to obtain radio frequency signals and sends the radio frequency signals outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal device, the radio frequency circuit receives a radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, the baseband signal is output to the processor, and the processor converts the baseband signal into the data and processes the data.

For ease of illustration, only one memory and processor 1312 is shown in FIG. 13. 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, and the like, which is not limited in this respect in the embodiment of the present invention.

As an alternative implementation manner, the processor 1312 may include a baseband processor and a central processing unit, the baseband processor is mainly used for processing the communication protocol and the communication data, and the central processing unit is mainly used for controlling the whole terminal device, executing a software program, and processing data of the software program. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by 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 the 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.

In one example, the antenna and the control circuit having the transceiving function may be regarded as the communication unit 1311 of the terminal device, and the processor having the processing function may be regarded as the processing unit 1312 of the terminal device. As shown in fig. 13, the terminal device includes a communication unit 1311 and a processing unit 1312. The communication unit may also be referred to as a transceiver, a transceiving means, etc. Alternatively, a device for implementing a receiving function in the communication unit 1311 may be regarded as a receiving unit, and a device for implementing a transmitting function in the communication unit 1311 may be regarded as a transmitting unit, that is, the communication unit 1311 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc. Optionally, the receiving unit and the sending unit may be integrated into one unit, or may be multiple units independent of each other. The receiving unit and the transmitting unit can be in one geographical position or can be dispersed in a plurality of geographical positions.

It is understood that some optional features in the embodiments of the present application may be implemented independently without depending on other features in some scenarios, such as a currently-based solution, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatuses provided in the embodiments of the present application may also implement these features or functions, which are not described herein again.

In the embodiments of the present application, the processor may be a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a Hard Disk Drive (HDD) or a solid-state drive (SSD), and may also be a volatile memory, for example, a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be circuitry or any other device capable of performing a storage function for storing program instructions and/or data.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, 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. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). 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, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method for transmitting feedback information, comprising:

the terminal determines first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information;

when the first resource indication information is the same as the second resource indication information, the terminal generates joint feedback information based on the first feedback information and the second feedback information;

and when the first resource indication information is different from the second resource indication information, the terminal respectively feeds back at least one of the first feedback information and the second feedback information.

2. The method of claim 1, wherein the time unit indicated by the first time unit indication information is the same as the time unit indicated by the second time unit indication information;

the first time unit indication information is used for indicating a time unit where the time frequency resource occupied by the first feedback information is located;

and the second time unit indication information is used for indicating the time unit of the time frequency resource occupied by the second feedback information.

3. The method according to claim 1 or 2, wherein the number of bits of the first feedback information and the number of bits of the second feedback information correspond to the same uplink control channel resource set, respectively.

4. The method of claim 1 or 2, wherein a first Control Channel Element (CCE) location is the same as a second CCE location;

the first CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the first DCI;

and the second CCE position is the position of a control channel element CCE occupied by a downlink control channel bearing the second DCI.

5. The method of claim 1 or 2, wherein the method further comprises:

when the time unit indicated by the first time unit indication information is different from the time unit indicated by the second time unit indication information, the terminal respectively feeds back at least one of the first feedback information and the second feedback information;

6. The method of claim 1 or 2, wherein the method further comprises:

and when the bit number of the first feedback information and the bit number of the second feedback information correspond to different uplink control channel resource sets respectively, the terminal feeds back at least one of the first feedback information and the second feedback information respectively.

7. The method of claim 1 or 2, wherein the method further comprises:

the CCE position of the first control channel element is different from the CCE position of the second control channel element, and the terminal respectively feeds back at least one of the first feedback information and the second feedback information;

8. The method of claim 1 or 2, wherein when the first resource indication information is different from the second resource indication information, the terminal feeds back at least one of the first feedback information and the second feedback information, respectively, and the method includes:

and when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information are overlapped on a time domain, the terminal feeds back the first feedback information and does not feed back the second feedback information.

9. The method of claim 1 or 2, wherein when the first resource indication information is different from the second resource indication information, the terminal feeds back at least one of the first feedback information and the second feedback information, respectively, and the method includes:

and when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information do not overlap in a time domain, the terminal feeds back the first feedback information and the second feedback information respectively.

10. The method of claim 8, wherein the first feedback information and the second feedback information satisfy one or more of the following conditions:

the priority of the first feedback information is higher than that of the second feedback information;

the priority of the downlink control related parameter associated with the first feedback information is higher than the priority of the downlink control related parameter associated with the second feedback information.

11. The method of claim 8,

the index number of the high-level parameter in the control resource set associated with the first feedback information is greater than the index number of the high-level parameter in the control resource set associated with the second feedback information; or

The index number of the high-level parameter in the control resource set associated with the first feedback information is smaller than the index number of the high-level parameter in the control resource set associated with the second feedback information; or

And the index number of the high-level parameter in the control resource set associated with the first feedback information is a preset index number.

12. The method of claim 1 or 2, wherein determining, by the terminal, a first DCI corresponding to the first feedback information and a second DCI corresponding to the second feedback information comprises:

the terminal determines first DCI corresponding to first feedback information based on downlink control channel detection opportunity of each downlink control channel associated with the first feedback information;

and the terminal determines second DCI corresponding to the second feedback information based on the downlink control channel detection time of each downlink control channel associated with the second feedback information.

13. The method of claim 12,

the first DCI is a DCI carried by a downlink control channel with the most posterior downlink control channel detection opportunity;

and the second DCI is the DCI carried by the downlink control channel with the most rear downlink control channel detection opportunity.

14. A method for transmitting feedback information, comprising:

the network equipment determines first Downlink Control Information (DCI) corresponding to the first feedback information and second DCI corresponding to the second feedback information;

when the first resource indication information is the same as the second resource indication information, the network device determines that feedback information fed back by the terminal is joint feedback information generated based on the first feedback information and the second feedback information;

and when the first resource indication information is different from the second resource indication information, the network equipment determines that the first feedback information or the second feedback information fed back by the terminal is fed back independently.

15. The method of claim 14, wherein the first time unit indication information is the same as the second time unit indication information;

16. The method according to claim 14 or 15, wherein the number of bits of the first feedback information and the number of bits of the second feedback information correspond to the same uplink control channel resource set, respectively.

17. The method of claim 14 or 15, wherein a first Control Channel Element (CCE) location is the same as a second CCE location;

18. The method of claim 14 or 15, wherein the method further comprises:

when the first time unit indication information is different from the second time unit indication information, the network equipment determines that the first feedback information or the second feedback information fed back by the terminal is fed back independently;

19. The method of claim 14 or 15, wherein the method further comprises:

when the bit number of the first feedback information and the bit number of the second feedback information correspond to different uplink control channel resource sets, the network device determines that the first feedback information or the second feedback information fed back by the terminal is fed back independently.

20. The method of claim 14 or 15, wherein the method further comprises:

when the first CCE element position is different from the second CCE element position, the network equipment determines that the first feedback information or the second feedback information fed back by the terminal is fed back independently;

21. The method of claim 14 or 15, wherein when the first resource indication information is different from the second resource indication information, the network device determines that the first feedback information or the second feedback information fed back by the terminal is fed back independently, and includes:

and when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information are overlapped in a time domain, the network equipment determines that the terminal feeds back the first feedback information and does not feed back the second feedback information.

22. The method of claim 14 or 15, wherein when the first resource indication information is different from the second resource indication information, the network device determines that the first feedback information or the second feedback information fed back by the terminal is fed back independently, and includes:

when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information do not overlap in a time domain, the network device determines that the terminal respectively feeds back the first feedback information and the second feedback information.

23. The method of claim 21, wherein the first feedback information and the second feedback information satisfy one or more of the following conditions:

24. The method of claim 21,

25. A communications apparatus, comprising:

the processing unit is further configured to determine to respectively feed back at least one of the first feedback information and the second feedback information when the first resource indication information is different from the second resource indication information; the communication unit is configured to send at least one of the first feedback information and the second feedback information.

26. The communications apparatus as claimed in claim 25, wherein the time unit indicated by the first time unit indication information is the same as the time unit indicated by the second time unit indication information;

27. The communications apparatus as claimed in claim 25 or 26, wherein the number of bits of the first feedback information and the number of bits of the second feedback information correspond to a same uplink control channel resource set, respectively.

28. The communications apparatus of claim 25 or 26, wherein a first control channel element CCE location is the same as a second CCE location;

29. The communication apparatus according to claim 25 or 26,

the processing unit is configured to determine to feed back at least one of the first feedback information and the second feedback information when a time unit indicated by the first time unit indication information is different from a time unit indicated by the second time unit indication information;

30. The communication apparatus according to claim 25 or 26,

the processing unit is configured to determine to feed back at least one of the first feedback information and the second feedback information when the bit number of the first feedback information and the bit number of the second feedback information correspond to different uplink control channel resource sets, respectively.

31. The communication apparatus according to claim 25 or 26,

the processing unit is configured to determine that at least one of the first feedback information and the second feedback information is fed back respectively when a first CCE location is different from a second CCE location;

32. The communication apparatus according to claim 25 or 26,

the processing unit is configured to determine to feed back the first feedback information and not to feed back the second feedback information when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information overlap in a time domain;

the communication unit is configured to send the first feedback information.

33. The communication apparatus according to claim 25 or 26,

the processing unit is configured to determine to feed back the first feedback information and the second feedback information respectively when there is no overlap between the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information in a time domain;

the communication unit is configured to send the first feedback information and send second feedback information.

34. The communications apparatus of claim 32, wherein the first feedback information and the second feedback information satisfy one or more of the following conditions:

35. The communications apparatus of claim 32,

36. A communications apparatus, comprising:

the processing unit is further configured to determine that feedback information fed back by the terminal is joint feedback information generated based on the first feedback information and the second feedback information when the first resource indication information is the same as the second resource indication information;

a communication unit for receiving the joint feedback information;

the processing unit is further configured to determine that the first feedback information or the second feedback information fed back by the terminal is fed back independently when the first resource indication information is different from the second resource indication information;

the communication unit is further configured to receive the first feedback information or the second feedback information.

37. The communications apparatus of claim 36, wherein the first time unit indication information is the same as the second time unit indication information;

38. The communications apparatus as claimed in claim 36 or 37, wherein the number of bits of the first feedback information and the number of bits of the second feedback information correspond to a same uplink control channel resource set, respectively.

39. The communications apparatus of claim 36 or 37, wherein a first control channel element CCE location is the same as a second CCE location;

40. The communication apparatus according to claim 36 or 37,

the processing unit is used for determining that the first feedback information or the second feedback information fed back by the terminal is fed back independently when the first time unit indication information is different from the second time unit indication information;

41. The communication apparatus according to claim 36 or 37,

the processing unit is configured to determine that the first feedback information or the second feedback information fed back by the terminal is fed back independently when the bit number of the first feedback information and the bit number of the second feedback information correspond to different uplink control channel resource sets, respectively.

42. The communication apparatus according to claim 36 or 37,

the processing unit is configured to determine that the first feedback information or the second feedback information fed back by the terminal is fed back independently when the CCE location of the first control channel element is different from the CCE location of the second control channel element;

43. The communication apparatus according to claim 36 or 37,

the processing unit is configured to determine that the terminal feeds back the first feedback information and does not feed back the second feedback information when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information overlap in a time domain;

the communication unit is configured to receive the first feedback information.

44. The communication apparatus according to claim 36 or 37,

the processing unit is configured to determine that the terminal respectively feeds back the first feedback information and the second feedback information when the time-frequency resource indicated by the first resource indication information and the time-frequency resource indicated by the second resource indication information do not overlap in a time domain;

the communication unit is configured to receive the first feedback information or the second feedback information.

45. The communications apparatus of claim 43, wherein the first feedback information and the second feedback information satisfy one or more of the following conditions:

46. The communications apparatus of claim 43,

47. A computer-readable storage medium for storing a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1 to 13 or the method of any one of claims 14 to 22.