CN116724619A

CN116724619A - Uplink control information transmission method and communication device

Info

Publication number: CN116724619A
Application number: CN202180087558.6A
Authority: CN
Inventors: 李军; 焦淑蓉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2023-09-08
Also published as: WO2022151419A1

Abstract

The application provides an uplink control information transmission method and a communication device, relates to the technical field of communication, and can improve the transmission performance of UCI. The method comprises the following steps: the terminal equipment determines a first resource on a first carrier, wherein the first resource is used for transmitting first uplink control information UCI, and the first resource and a downlink resource on the first carrier are overlapped in a time domain. The terminal device then determines a second resource on the second carrier, the second resource being used for transmitting the first UCI. The terminal device determines that the second resource overlaps with a third resource in the time domain, wherein the third resource is used for transmitting a second UCI on a third carrier. The terminal device discards the first UCI on the second resource or discards the second UCI on the third resource.

Description

Uplink control information transmission method and communication device

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and a communications device for transmitting uplink control information.

Background

In time division duplexing (time division duplex, TDD), for one carrier in a group of physical uplink control channels (physical uplink control channel, PUCCH), if all symbols used to transmit the physical uplink control channel (physical uplink control channel, PUCCH) in one slot are downlink symbols, no PUCCH can be transmitted on that slot, and PUCCH can only be transmitted in slots subsequent to that slot. Therefore, the transmission delay of the uplink control information (uplink control information, UCI) carried by the PUCCH on the carrier increases. In order to reduce the transmission delay of UCI, if the symbol in the same slot on another carrier in the PUCCH group is an uplink symbol or a flexible symbol, the terminal device may transmit the PUCCH carrying the UCI on the "another carrier".

However, the PUCCH resource for transmitting UCI on the "another carrier" and the PUCCH resource for transmitting UCI on other carriers in the PUCCH group may overlap in time domain, and if the terminal device simultaneously transmits two or more PUCCHs carrying UCI, transmission performance of UCI may be affected.

Disclosure of Invention

The embodiment of the application provides an uplink control information transmission method and a communication device, which can improve the transmission performance of UCI.

In a first aspect, an embodiment of the present application provides an uplink control information transmission method, where an execution body of the method may be a terminal device, or may be a chip applied to the terminal device. The following describes an example in which the execution subject is a terminal device. The method comprises the following steps: the terminal equipment determines a first resource on a first carrier, wherein the first resource is used for transmitting first uplink control information UCI, and the first resource and a downlink resource on the first carrier are overlapped in a time domain. The terminal device then determines a second resource on the second carrier, the second resource being used for transmitting the first UCI. The terminal device determines that the second resource overlaps with a third resource in the time domain, wherein the third resource is used for transmitting a second UCI on a third carrier. The terminal device discards the first UCI on the second resource or discards the second UCI on the third resource.

In this way, in the case that the terminal device determines that the first resource overlaps with the downlink resource on the first carrier in the time domain, the terminal device does not transmit the first UCI on the first resource, but determines that the second resource is used for transmitting the first UCI. In the case that the second resource overlaps with the third resource in the time domain, the terminal device discards one UCI, e.g., the terminal device discards the first UCI on the second resource or discards the second UCI on the third resource, so that the terminal device does not need to send the first UCI and the second UCI at the same time. Because the power of the terminal equipment is fixed, under the condition that the terminal equipment discards one UCI, the power of the terminal equipment at a certain moment is used for sending one UCI, and two or more UCIs are not sent at the same moment, so that the transmission performance of the UCI is improved.

In one possible design, the terminal device discards the first UCI on the second resource, including: and when the first UCI meets the preset condition, the terminal equipment discards the first UCI on the second resource. Wherein the preset conditions include at least one of the following: the priority of the first UCI is lower than the priority of the second UCI; the second resource transmitting the first UCI is later than the third resource.

And under the condition that the first preset condition is realized, the terminal equipment discards the first UCI with low priority so that the second UCI with higher priority can be sent to the network equipment. And enabling a second UCI which is more recent in time to be transmitted to the network equipment under the condition that the second preset condition is realized.

In one possible design, the first UCI includes at least one of a scheduling request SR and channel state information CSI, and the second UCI includes automatic repeat request acknowledgement HARQ-ACK information; alternatively, the first UCI includes CSI and the second UCI includes SR; alternatively, the first UCI includes CSI of a first priority, and the second UCI includes CSI of a second priority, the first priority being lower than the second priority; alternatively, the first UCI includes SR of the first priority, and the second UCI includes SR of the second priority; alternatively, the first UCI includes HARQ-ACK information of the first priority, and the second UCI includes HARQ-ACK information of the second priority.

In one possible design, the terminal device discards the second UCI on the third resource, including: and when the second UCI meets the preset condition, the terminal equipment discards the second UCI on the third resource. Wherein the preset conditions include at least one of the following: the priority of the second UCI is lower than the priority of the first UCI; the third resource transmitting the second UCI is later than the second resource.

And under the condition that the first preset condition is realized, the terminal equipment discards the second UCI with low priority so that the first UCI with higher priority can be sent to the network equipment. In case the second preset condition is fulfilled, enabling the temporally closer first UCI to be transmitted to the network device.

In one possible design, the second UCI includes at least one of SR and CSI, and the first UCI includes HARQ-ACK information; alternatively, the second UCI includes CSI and the first UCI includes SR; alternatively, the second UCI includes CSI of a first priority, the first UCI includes CSI of a second priority, and the first priority is lower than the second priority; alternatively, the second UCI includes an SR of the first priority, and the first UCI includes an SR of the second priority; alternatively, the second UCI includes HARQ-ACK information of the first priority, and the first UCI includes HARQ-ACK information of the second priority.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the terminal device receives first indication information from the network device. The first indication information indicates the terminal equipment to discard the first UCI on the second resource or discard the second UCI on the third resource.

That is, the terminal device determines which UCI of the first UCI and the second UCI is discarded according to the first indication information, so that the network device can flexibly control the terminal device, and also can reduce the processing complexity of the terminal device side.

In one possible design, when the terminal device discards the first UCI on the second resource, the uplink control information transmission method in this embodiment of the present application further includes: the terminal device determines to transmit the first UCI on the target resource of the third carrier. Wherein the target resource of the third carrier is determined from the second resource.

That is, the terminal device sends the first UCI and the second UCI to the network device through the same carrier, which can avoid "PUCCH resource collision on cross carrier" and enable the first UCI to be normally transmitted.

In one possible design, when the terminal device discards the second UCI on the third resource, the uplink control information transmission method in this embodiment of the present application further includes: the terminal device determines to transmit a second UCI on a target resource of a second carrier. Wherein the target resource of the second carrier is determined based on the third resource.

That is, the terminal device sends the first UCI and the second UCI to the network device through the same carrier, so that the "PUCCH resource collision on cross-carrier" can be avoided, and the second UCI can be normally transmitted.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the terminal device receives second indication information from the network device. The second indication information indicates the terminal equipment to send the first UCI and the second UCI on the same carrier.

That is, the terminal device determines whether to transmit the first UCI and the second UCI on the same carrier according to the second indication information, so that the network device can flexibly control the terminal device, and also can reduce the processing complexity of the terminal device side.

In one possible design, when the terminal device discards the first UCI on the second resource, the uplink control information transmission method in this embodiment of the present application further includes: the terminal equipment determines to transmit the first UCI on the physical uplink shared channel PUSCH resource of the second carrier. Wherein, the PUSCH resource of the second carrier overlaps with the second resource in the time domain.

That is, the terminal device multiplexes the information carried on the PUSCH on the second carrier with the first UCI, and sends the first UCI to the network device by using the PUSCH resource on the second carrier, where the terminal device does not send the first UCI to the network device through the second resource any more, so as to avoid the problem of "PUCCH resource collision on cross carrier", so that the first UCI is normally transmitted, and thus, the transmission performance of the UCI is improved.

In one possible design, when the terminal device discards the second UCI on the third resource, the uplink control information transmission method in this embodiment of the present application further includes: the terminal device determines to transmit the second UCI on PUSCH resources of the third carrier. Wherein, PUSCH resources of the third carrier overlap with the third resources in the time domain.

That is, the terminal device multiplexes the information carried on the PUSCH on the third carrier with the second UCI, and sends the second UCI to the network device by using the PUSCH resource on the third carrier, where the terminal device does not send the second UCI to the network device through the third resource, so as to avoid the problem of "PUCCH resource collision on the cross carrier", and enable the second UCI to be normally transmitted, thereby improving the transmission performance of the UCI.

In one possible design, the third carrier is the same carrier as the first carrier, or the third carrier is the same carrier as the second carrier.

In a second aspect, an embodiment of the present application provides a method for transmitting uplink control information, where an execution body of the method may be a network device, or may be a chip applied to the network device. The following describes an example in which the execution subject is a network device. The method comprises the following steps: the network device determines a first resource on a first carrier, wherein the first resource is used for transmitting first uplink control information UCI, and the first resource overlaps with a downlink resource on the first carrier in a time domain. The network device then determines a second resource on the second carrier, the second resource for transmitting the first UCI. The network device determines that the second resource overlaps in time domain with a third resource, wherein the third resource is used to transmit a second UCI on a third carrier. The network device determines whether the first UCI on the second resource is discarded or the second UCI on the third resource is discarded.

In one possible design, the network device determining that the first UCI on the second resource is discarded includes: when the first UCI meets a preset condition, discarding the first UCI on the second resource of the network device, wherein the preset condition includes at least one of: the priority of the first UCI is lower than the priority of the second UCI; the second resource transmitting the first UCI is later than the third resource.

In one possible design, the first UCI includes at least one of a scheduling request SR and channel state information CSI, and the second UCI includes hybrid automatic repeat request acknowledgement HARQ-ACK information; alternatively, the first UCI includes CSI and the second UCI includes SR; alternatively, the first UCI includes CSI of a first priority, and the second UCI includes CSI of a second priority, the first priority being lower than the second priority; alternatively, the first UCI includes SR of the first priority, and the second UCI includes SR of the second priority; alternatively, the first UCI includes HARQ-ACK information of the first priority, and the second UCI includes HARQ-ACK information of the second priority.

In one possible design, the network device determining that the second UCI on the third resource is discarded includes: when the second UCI meets a preset condition, the network device determines that the second UCI on the third resource is discarded, wherein the preset condition includes at least one of: the priority of the second UCI is lower than the priority of the first UCI; the third resource transmitting the second UCI is later than the second resource.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the network device sends first indication information to the terminal device. The first indication information indicates the terminal equipment to discard the first UCI on the second resource or discard the second UCI on the third resource.

In one possible design, when the network device determines that the first UCI on the second resource is discarded, the uplink control information transmission method according to the embodiment of the present application further includes: the network device determines to receive a first UCI from the terminal device on a target resource of a third carrier. Wherein the target resource of the third carrier is determined from the second resource.

In one possible design, when the network device determines that the second UCI on the third resource is discarded, the uplink control information transmission method according to the embodiment of the present application further includes: the network device determines to receive a second UCI from the terminal device on a target resource of a second carrier. Wherein the target resource of the second carrier is determined based on the third resource.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the network device sends the second indication information to the terminal device. The second indication information indicates the terminal equipment to send the first UCI and the second UCI on the same carrier.

In one possible design, when the network device determines that the first UCI on the second resource is discarded, the uplink control information transmission method according to the embodiment of the present application further includes: the network device determines to receive the first UCI from the terminal device on a physical uplink shared channel, PUSCH, resource of the second carrier, wherein the PUSCH resource of the second carrier overlaps with the second resource in a time domain.

In one possible design, when the network device determines that the second UCI on the third resource is discarded, the uplink control information transmission method according to the embodiment of the present application further includes: the network device determines to receive a second UCI from the terminal device on PUSCH resources of the third carrier. Wherein, PUSCH resources of the third carrier overlap with the third resources in the time domain.

In a third aspect, an embodiment of the present application provides a method for transmitting uplink control information, where an execution body of the method may be a terminal device, or may be a chip applied to the terminal device. The following describes an example in which the execution subject is a terminal device. The method comprises the following steps: the terminal equipment determines a first resource on a first carrier, wherein the first resource is used for transmitting first uplink control information UCI, and the first resource and a downlink resource on the first carrier are overlapped in a time domain. Then, the terminal device determines a second resource on a second carrier, where the second resource is used for transmitting the first UCI, and the second resource meets a preset condition, and the preset condition includes: the second resource does not overlap with a third resource in the time domain, the third resource being a resource on the third carrier for transmitting the second UCI. The terminal device sends the first UCI to the network device on the second resource and the second UCI to the network device on the third resource.

In this way, in the case that the terminal device determines that the first resource overlaps with the downlink resource on the first carrier in the time domain, the terminal device does not transmit the first UCI on the first resource, but determines that the second resource is used for transmitting the first UCI. Since the second resource is a resource satisfying the preset condition, that is, the second resource and the third resource do not overlap in the time domain. That is, since the second resource is a resource satisfying the preset condition, the second resource redetermined by the terminal device and a resource (e.g., a third resource) for transmitting UCI on other carriers do not overlap in the time domain. In this case, the terminal device does not have a case of simultaneously transmitting the first UCI and the second UCI. Because the power of the terminal equipment is fixed, under the condition that the second resource and the third resource determined by the terminal equipment are not overlapped, the power of the terminal equipment at a certain moment is used for sending one UCI, and two or more UCIs are not sent at the same moment, so that the transmission performance of the UCI is improved.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the terminal equipment receives downlink control information DCI from the network equipment, the DCI indicates time domain resources of a Physical Uplink Control Channel (PUCCH), and the time domain resources and the third resources are not overlapped in time domain. The terminal device determines a second resource on a second carrier, including: and the terminal equipment determines a second resource according to the time domain resource indicated by the DCI.

That is, the network device performs resource selection in the PUCCH resources indicated by the RRC signaling according to the preset condition, so as to screen out time domain resources that satisfy the preset condition. In this way, the time domain resource of the PUCCH indicated by the DCI and the PUCCH resource transmitting UCI on other carriers do not overlap in time domain. Because the terminal equipment is the second resource determined based on the time domain resource of the PUCCH indicated by the DCI, the phenomenon that the PUCCH carrier is overlapped with the PUCCH resources on other carriers in the time domain after 'PUCCH carrier switching' is avoided, and the terminal equipment only needs to send one UCI at the power of a certain moment, so that the transmission performance of the UCI is improved.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the terminal device receives radio resource control, RRC, signaling from the network device. Wherein, the RRC signaling indicates physical uplink control channel PUCCH resources. The terminal device determines a second resource on a second carrier, including: and the terminal equipment determines the resource meeting the preset condition in the PUCCH resource as the second resource.

That is, the terminal device performs resource selection in the PUCCH resources indicated by the RRC signaling according to the preset condition, so as to screen out the resources that meet the preset condition, as the second resource, so as to avoid the phenomenon that the PUCCH resources overlap with the PUCCH resources on other carriers in the time domain after "PUCCH carrier switching", and the terminal device only needs to send one UCI at a power of a certain moment, thereby improving the transmission performance of the UCI.

In one possible design, the second resource and the third resource are separated by at least N time domain resource units in the time domain, where N is a positive integer, so that the terminal device can switch from the second carrier to the third carrier in time, thereby improving the probability of successful transmission of the second UCI and improving the transmission performance of the UCI.

In one possible design, the time domain resource unit is determined based on a smaller subcarrier spacing of the second resource and the subcarrier spacing of the third resource. Since the smaller the subcarrier spacing, the larger the time length corresponding to one time domain resource unit, e.g., symbol or slot, to provide sufficient time for the terminal device to switch carriers.

In a fourth aspect, an embodiment of the present application provides a method for transmitting uplink control information, where an execution body of the method may be a network device, or may be a chip applied to the network device. The following describes an example in which the execution subject is a network device. The method comprises the following steps: the network device determines a first resource on a first carrier, wherein the first resource is used for transmitting first uplink control information UCI, and the first resource overlaps with a downlink resource on the first carrier in a time domain. Then, the network device determines a second resource on a second carrier, where the second resource is used for transmitting the first UCI, and the second resource meets a preset condition, where the preset condition includes: the second resource does not overlap with a third resource in the time domain, the third resource being a resource on the third carrier for transmitting the second UCI. The network device receives the first UCI from the terminal device on the second resource and the second UCI from the terminal device on the third resource.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the network device sends downlink control information DCI to the terminal device. The DCI indicates a time domain resource of a physical uplink control channel PUCCH, where the time domain resource and the third resource do not overlap in time domain, and the DCI is used by the terminal device to determine the second resource.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the network device sends radio resource control, RRC, signaling to the terminal device. The RRC signaling indicates a Physical Uplink Control Channel (PUCCH) resource, and the RRC signaling is used for determining the second resource by the terminal equipment.

In one possible design, the second resource is time-domain separated from the third resource by at least N time-domain resource units, where N is a positive integer.

In one possible design, the time domain resource unit is determined based on a smaller subcarrier spacing of the second resource and the subcarrier spacing of the third resource.

In a fifth aspect, an embodiment of the present application provides an uplink control information transmission method, where an execution body of the method may be a terminal device, or may be a chip applied to the terminal device. The following describes an example in which the execution subject is a terminal device. The method comprises the following steps: the terminal device determines a time interval between a first resource for transmitting the first uplink control information UCI on the first carrier and a second resource for transmitting the second UCI on the second carrier. The time interval is smaller than a first preset value, and the terminal equipment discards the first UCI on the first resource or discards the second UCI on the second resource.

In this way, the terminal device determines whether to discard one UCI according to the time interval between the first resource and the second resource. For example, when the time interval is smaller than the first preset value, the terminal device cannot switch between the first carrier and the second carrier in time, and in this case, the terminal device discards UCI on a certain carrier, so that the terminal device does not need to switch between the first carrier and the second carrier, and the problem that the terminal device cannot switch to a certain carrier in time to send UCI does not exist.

In one possible design, before the terminal device determines the time interval between the first resource and the second resource, the uplink control information transmission method in the embodiment of the present application further includes: the terminal device determines a third resource on a third carrier. The third resource is used for transmitting the first UCI or the second UCI, and the third resource overlaps with the downlink resource on the third carrier in the time domain. That is, the first UCI may be information that is determined to be transmitted on the first carrier through a "PUCCH carrier switching" process. The second UCI may be information that is determined to be transmitted on the second carrier through a "PUCCH carrier switching" process.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the terminal device sends a first preset value to the network device to enable the network device to determine which UCI is discarded.

In a sixth aspect, an embodiment of the present application provides a method for transmitting uplink control information, where an execution body of the method may be a network device, or may be a chip applied to the network device. The following describes an example in which the execution subject is a network device. The method comprises the following steps: the network device determines a time interval between the first resource and the second resource. The first resource is used for transmitting first uplink control information UCI on a first carrier, and the second resource is used for transmitting second UCI on a second carrier. The network device determines that the first UCI on the first resource is discarded or that the second UCI on the second resource is discarded when the time interval is less than the first preset value.

In one possible design, before the network device determines the time interval between the first resource and the second resource, the uplink control information transmission method in the embodiment of the present application further includes: the network device determines a third resource on a third carrier. The third resource is used for transmitting the first UCI or the second UCI, and the third resource overlaps with the downlink resource on the third carrier in the time domain.

In one possible design, the uplink control information transmission method of the embodiment of the present application further includes: the network device receives a first preset value from the terminal device.

In a seventh aspect, an embodiment of the present application provides an uplink control information transmission method, where an execution body of the method may be a terminal device, or may be a chip applied to the terminal device. The following describes an example in which the execution subject is a terminal device. The method comprises the following steps: the method comprises the steps that terminal equipment determines the sending times of a Physical Uplink Control Channel (PUCCH) in a preset time domain resource unit, wherein the PUCCH comprises a PUCCH carrying first Uplink Control Information (UCI) and a PUCCH carrying second UCI, the first UCI is information transmitted on a first resource of a first carrier, and the second UCI is information transmitted on a second resource of a second carrier. And then, the terminal equipment determines to discard the first UCI on the first resource according to the sending times and the second preset value, or the terminal equipment determines to discard the second UCI on the second resource according to the sending times and the second preset value.

In this way, the terminal device determines whether to discard UCI on a certain resource according to the number of times of transmission of PUCCH in the preset time domain resource unit and the second preset value, so as to avoid that the terminal device cannot switch between the first carrier and the second carrier in time due to the limitation of the capability of the terminal device itself. When the terminal equipment discards the UCI on a certain carrier, the terminal equipment does not need to switch between the first carrier and the second carrier, and the problem that the terminal equipment cannot switch to a certain carrier in time to send the UCI is avoided.

In one possible design, before the terminal device determines the number of times of sending the PUCCH in the preset time domain resource unit, the uplink control information transmission method according to the embodiment of the present application further includes: the terminal equipment determines a third resource on a third carrier, wherein the third resource is used for transmitting the first UCI or the second UCI, and the third resource is overlapped with a downlink resource on the third carrier in a time domain. That is, the first UCI may be information that is determined to be transmitted on the first carrier through a "PUCCH carrier switching" process. The second UCI may be information that is determined to be transmitted on the second carrier through a "PUCCH carrier switching" process.

In an eighth aspect, an embodiment of the present application provides a method for transmitting uplink control information, where an execution body of the method may be a network device, or may be a chip applied to the network device. The following describes an example in which the execution subject is a network device. The method comprises the following steps: the network equipment determines the receiving times of a Physical Uplink Control Channel (PUCCH) in a preset time domain resource unit, wherein the PUCCH comprises a PUCCH carrying first Uplink Control Information (UCI) and a PUCCH carrying second UCI, the first UCI is information transmitted on a first resource of a first carrier, and the second UCI is information transmitted on a second resource of a second carrier. Then, the network device determines that the first UCI on the first resource is discarded according to the reception number and the second preset value, or the network device determines that the second UCI on the second resource is discarded according to the reception number and the second preset value.

In one possible design, before the network device determines the number of times of receiving the physical uplink control channel PUCCH in the preset time domain resource unit, the uplink control information transmission method according to the embodiment of the present application further includes: the network device determines a third resource on a third carrier. The third resource is used for transmitting the first UCI or the second UCI, and the third resource overlaps with the downlink resource on the third carrier in the time domain.

In a ninth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a terminal device in the foregoing first aspect or any one of the possible designs of the first aspect, or an apparatus disposed in the foregoing terminal device, or a chip implementing a function of the foregoing terminal device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a transmission unit and a processing unit. The processing unit is configured to determine a first resource on a first carrier. The first resource is used for transmitting first uplink control information UCI, and the first resource overlaps with a downlink resource on the first carrier in a time domain. The processing unit is further configured to determine a second resource on a second carrier, where the second resource is used for transmitting the first UCI. The processing unit is further configured to determine that the second resource overlaps with the third resource in a time domain. Wherein the third resource is used to transmit the second UCI on the third carrier. The processing unit is further configured to determine to discard the first UCI on the second resource or discard the second UCI on the third resource. And a sending unit, configured to send the second UCI to the network device on the third resource if the processing unit determines to discard the first UCI on the second resource. Or the sending unit is further configured to send the first UCI to the network device on the second resource if the second UCI on the third resource is discarded.

In one possible design, the processing unit is specifically configured to: and when the first UCI meets the preset condition, determining to discard the first UCI on the second resource. Wherein the preset conditions include at least one of the following: the priority of the first UCI is lower than the priority of the second UCI; the second resource transmitting the first UCI is later than the third resource.

In one possible design, the processing unit is specifically configured to: and when the second UCI meets the preset condition, determining to discard the second UCI on the third resource. Wherein the preset conditions include at least one of the following: the priority of the second UCI is lower than the priority of the first UCI; the third resource transmitting the second UCI is later than the second resource.

In one possible design, the communication device according to the embodiment of the present application further includes a receiving unit, configured to receive the first indication information from the network device. Wherein the first indication information indicates the communication device to discard the first UCI on the second resource or discard the second UCI on the third resource.

In one possible design, the processing unit is further configured to control the sending unit to transmit the first UCI on the target resource of the third carrier. Wherein the target resource of the third carrier is determined from the second resource.

In one possible design, the processing unit is further configured to control the sending unit to transmit the second UCI on the target resource of the second carrier. Wherein the target resource of the second carrier is determined based on the third resource.

In one possible design, the communication device according to the embodiment of the present application further includes a receiving unit, configured to receive the second indication information from the network device. Wherein the second indication information indicates that the communication device transmits the first UCI and the second UCI on the same carrier.

In one possible design, the processing unit is further configured to determine to control the sending unit to transmit the first UCI on a physical uplink shared channel PUSCH resource of the second carrier. Wherein, the PUSCH resource of the second carrier overlaps with the second resource in the time domain.

In one possible design, the processing unit is further configured to determine to control the transmitting unit to transmit the second UCI on PUSCH resources of the third carrier. Wherein, PUSCH resources of the third carrier overlap with the third resources in the time domain.

In a tenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a network device in any one of the second aspect or the second aspect, or an apparatus disposed in the network device, or a chip implementing a function of the network device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a receiving unit and a processing unit. The processing unit is configured to determine a first resource on a first carrier. The first resource is used for transmitting first uplink control information UCI, and the first resource overlaps with a downlink resource on the first carrier in a time domain. The processing unit is further configured to determine a second resource on a second carrier. Wherein the second resource is used for transmitting the first UCI. The processing unit is further configured to determine that the second resource overlaps with a third resource in a time domain, where the third resource is used to transmit the second UCI on a third carrier. The processing unit is further configured to determine whether the first UCI on the second resource is discarded or the second UCI on the third resource is discarded. And the receiving unit is further used for receiving the second UCI from the terminal equipment on the third resource in the case that the processing unit determines that the first UCI on the second resource is discarded. And the receiving unit is further used for receiving the first UCI from the terminal equipment on the second resource in the case that the processing unit determines that the second UCI on the third resource is discarded.

In one possible design, the processing unit is specifically configured to: when the first UCI meets a preset condition, it is determined that the first UCI on the second resource is discarded. Wherein the preset conditions include at least one of the following: the priority of the first UCI is lower than the priority of the second UCI; the second resource transmitting the first UCI is later than the third resource.

In one possible design, the processing unit is specifically configured to: and when the second UCI meets the preset condition, determining that the second UCI on the third resource is discarded. Wherein the preset conditions include at least one of the following: the priority of the second UCI is lower than the priority of the first UCI; the third resource transmitting the second UCI is later than the second resource.

In a possible design, the communication device according to the embodiment of the present application further includes a sending unit, configured to send the first indication information to the terminal device. The first indication information indicates the terminal equipment to discard the first UCI on the second resource or discard the second UCI on the third resource.

In one possible design, the processing unit is further configured to control the receiving unit to receive the first UCI from the terminal device on the target resource of the third carrier. Wherein the target resource of the third carrier is determined from the second resource.

In one possible design, the processing unit is further configured to control the receiving unit to determine to receive the second UCI from the terminal device on the target resource of the second carrier. Wherein the target resource of the second carrier is determined based on the third resource.

In one possible design, the sending unit is further configured to send the second indication information to the terminal device. The second indication information indicates the terminal equipment to send the first UCI and the second UCI on the same carrier.

In one possible design, the processing unit is further configured to control the receiving unit to receive the first UCI from the terminal device on a PUSCH resource of a physical uplink shared channel of the second carrier, where the PUSCH resource of the second carrier overlaps with the second resource in a time domain.

In one possible design, the processing unit is further configured to control the receiving unit to receive the second UCI from the terminal device on a PUSCH resource of the third carrier. Wherein, PUSCH resources of the third carrier overlap with the third resources in the time domain.

An eleventh aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a terminal device in any one of the foregoing third aspect or any one of the foregoing possible designs of the third aspect, or an apparatus disposed in the foregoing terminal device, or a chip implementing a function of the foregoing terminal device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a transmission unit and a processing unit. The processing unit is configured to determine a first resource on a first carrier. The first resource is used for transmitting first uplink control information UCI, and the first resource overlaps with a downlink resource on the first carrier in a time domain. The processing unit is further configured to determine a second resource on a second carrier. The second resource is used for transmitting the first UCI, and the second resource meets a preset condition, wherein the preset condition comprises: the second resource does not overlap with a third resource in the time domain, the third resource being a resource on the third carrier for transmitting the second UCI. And the sending unit is used for sending the first UCI to the network equipment on the second resource and sending the second UCI to the network equipment on the third resource.

In one possible design, the communication apparatus of the embodiment of the present application further includes a receiving unit, configured to receive downlink control information DCI from the network device. Wherein, the DCI indicates a time domain resource of a physical uplink control channel PUCCH, and the time domain resource and the third resource do not overlap in time domain. The processing unit is specifically used for: and determining a second resource according to the time domain resource indicated by the DCI.

In one possible design, the communication apparatus of the embodiment of the present application further comprises a receiving unit, configured to receive radio resource control RRC signaling from the network device. Wherein, the RRC signaling indicates physical uplink control channel PUCCH resources. The processing unit is specifically used for: and determining the resource meeting the preset condition in the PUCCH resources as a second resource.

In a twelfth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a network device in any one of the foregoing fourth aspect or any one of the foregoing possible designs, or an apparatus disposed in the foregoing network device, or a chip implementing a function of the foregoing network device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a receiving unit and a processing unit. The processing unit is configured to determine a first resource on a first carrier. The first resource is used for transmitting first uplink control information UCI, and the first resource overlaps with a downlink resource on the first carrier in a time domain. The processing unit is further configured to determine a second resource on a second carrier, where the second resource is used for transmitting the first UCI, and the second resource meets a preset condition, and the preset condition includes: the second resource does not overlap with a third resource in the time domain, the third resource being a resource on the third carrier for transmitting the second UCI. A receiving unit, configured to receive the first UCI from the terminal device on the second resource and receive the second UCI from the terminal device on the third resource.

In a possible design, the communication device according to the embodiment of the present application further includes a sending unit, configured to send downlink control information DCI to the terminal device. The DCI indicates a time domain resource of a physical uplink control channel PUCCH, where the time domain resource and the third resource do not overlap in time domain, and the DCI is used by the terminal device to determine the second resource.

In a possible design, the communication device according to the embodiment of the present application further includes a sending unit, configured to send radio resource control RRC signaling to the terminal device. The RRC signaling indicates a Physical Uplink Control Channel (PUCCH) resource, and the RRC signaling is used for determining the second resource by the terminal equipment.

In a thirteenth aspect, an embodiment of the present application provides a communication device, where the communication device may be a terminal device in any one of the fifth aspect or the fifth possible design, or an apparatus disposed in the terminal device, or a chip implementing a function of the terminal device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a transmission unit and a processing unit. The processing unit is used for determining a time interval between the first resource and the second resource. The first resource is used for transmitting first uplink control information UCI on a first carrier, and the second resource is used for transmitting second UCI on a second carrier. And the processing unit is further used for determining to discard the first UCI on the first resource or discard the second UCI on the second resource when the time interval is smaller than the first preset value. And a sending unit, configured to send a second UCI to the network device on a second resource if the processing unit determines to discard the first UCI on the first resource. Or the sending unit is further configured to send the first UCI to the network device on the first resource if the processing unit determines to discard the second UCI on the second resource.

In one possible design, the processing unit is further configured to determine a third resource on a third carrier. The third resource is used for transmitting the first UCI or the second UCI, and the third resource overlaps with the downlink resource on the third carrier in the time domain.

In one possible design, the sending unit is further configured to send the first preset value to the network device.

In a fourteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a network device in any one of the sixth aspect or any one of the possible designs of the sixth aspect, or an apparatus disposed in the network device, or a chip that implements a function of the network device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a receiving unit and a processing unit. The processing unit is used for determining a time interval between the first resource and the second resource. The first resource is used for transmitting first uplink control information UCI on a first carrier, and the second resource is used for transmitting second UCI on a second carrier. The processing unit is further configured to determine that the first UCI on the first resource is discarded or that the second UCI on the second resource is discarded when the time interval is smaller than the first preset value. And a receiving unit, configured to receive a second UCI from the terminal device on a second resource if the processing unit determines that the first UCI on the first resource is discarded. Or the receiving unit is further configured to receive the first UCI from the terminal device on the first resource if the processing unit determines that the second UCI on the second resource is discarded.

In a possible design, the communication device according to the embodiment of the present application further includes a receiving unit, configured to receive the first preset value from the terminal device.

In a fifteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a terminal device in any one of the seventh aspect or the seventh possible design, or an apparatus disposed in the terminal device, or a chip implementing a function of the terminal device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a transmission unit and a processing unit. The processing unit is used for determining the sending times of the physical uplink control channel PUCCH in the preset time domain resource unit. The PUCCH includes a PUCCH carrying a first uplink control information UCI and a PUCCH carrying a second UCI, where the first UCI is information transmitted on a first resource of the first carrier, and the second UCI is information transmitted on a second resource of the second carrier. The processing unit is further configured to determine to discard the first UCI on the first resource according to the number of transmissions and the second preset value, or the processing unit is further configured to determine to discard the second UCI on the second resource according to the number of transmissions and the second preset value. And a sending unit, configured to send a second UCI to the network device on a second resource if the processing unit determines to discard the first UCI on the first resource. Or the sending unit is further configured to send the first UCI to the network device on the first resource if the processing unit determines to discard the second UCI on the second resource.

In a sixteenth aspect, an embodiment of the present application provides a communication apparatus, where the communication apparatus may be a network device in any one of the foregoing eighth or eighth aspects, or an apparatus disposed in the foregoing network device, or a chip implementing a function of the foregoing network device; the communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

The communication device includes a receiving unit and a processing unit. The processing unit is used for determining the receiving times of the physical uplink control channel PUCCH in the preset time domain resource unit. The PUCCH includes a PUCCH carrying a first uplink control information UCI and a PUCCH carrying a second UCI, where the first UCI is information transmitted on a first resource of the first carrier, and the second UCI is information transmitted on a second resource of the second carrier. The processing unit is further configured to determine that the first UCI on the first resource is discarded according to the number of times of reception and the second preset value, or the processing unit is further configured to determine that the second UCI on the second resource is discarded according to the number of times of reception and the second preset value. And a receiving unit, configured to receive a second UCI from the terminal device on a second resource if the processing unit determines that the first UCI on the first resource is discarded. Or the receiving unit is further configured to receive the first UCI from the terminal device on the first resource if the processing unit determines that the second UCI on the second resource is discarded.

In a seventeenth aspect, an embodiment of the present application provides a communication apparatus, including: a processor and a memory; the memory is for storing computer instructions which, when executed by the processor, cause the communications apparatus to perform the method performed by the terminal device in any one of the above aspects or any one of the possible designs of any one of the aspects. The communication device may be a terminal device in the first aspect or any one of the possible designs of the first aspect, or a chip for implementing the functions of the terminal device; alternatively, the communication device may be a terminal device in any one of the above third aspect or any one of the possible designs of the third aspect, or a chip for implementing the functions of the above terminal device; alternatively, the communication device may be a terminal device in any one of the above fifth aspect or any one of the possible designs of the fifth aspect, or a chip for implementing the functions of the above terminal device; alternatively, the communication device may be a terminal device in any of the above seventh aspect or any of the possible designs of the seventh aspect, or a chip implementing the above functions of the terminal device.

In an eighteenth aspect, an embodiment of the present application provides a communication apparatus, including: a processor; the processor is coupled to the memory for reading the instructions in the memory and executing the instructions to cause the communication device to perform the method performed by the terminal device as in any one of the above aspects or any one of the possible designs of the aspect. The communication device may be a terminal device in the first aspect or any one of the possible designs of the first aspect, or a chip for implementing the functions of the terminal device; alternatively, the communication device may be a terminal device in any one of the above third aspect or any one of the possible designs of the third aspect, or a chip for implementing the functions of the above terminal device; alternatively, the communication device may be a terminal device in any one of the above fifth aspect or any one of the possible designs of the fifth aspect, or a chip for implementing the functions of the above terminal device; alternatively, the communication device may be a terminal device in any of the above seventh aspect or any of the possible designs of the seventh aspect, or a chip implementing the above functions of the terminal device.

In a nineteenth aspect, an embodiment of the present application provides a chip including a logic circuit and an input-output interface. The input-output interface is used for communicating with a module outside the chip, for example, the chip may be a chip implementing the terminal device function in the first aspect or any of the possible designs of the first aspect. The input-output interface outputs the first UCI or the second UCI. Logic circuitry is to run a computer program or instructions to implement the method of the first aspect above or any of the possible designs of the first aspect. Alternatively, the chip may be a chip implementing the functionality of the terminal device in any of the above-mentioned third or any of the possible designs of the third aspect. The input-output interface outputs the first UCI and the second UCI. Logic circuitry is to run a computer program or instructions to implement the method in any one of the possible designs of the above third aspect or third aspect. Alternatively, the chip may be a chip implementing the functions of the terminal device in any of the above fifth or fifth possible designs. The input-output interface outputs the first UCI or the second UCI. Logic circuitry is to run a computer program or instructions to implement the method of the fifth aspect above or any of the possible designs of the fifth aspect. Alternatively, the chip may be a chip implementing the functions of the terminal device in any of the above seventh or seventh possible designs. The input-output interface outputs the first UCI or the second UCI. Logic circuitry is to run a computer program or instructions to implement the method of the seventh aspect or any one of the possible designs of the seventh aspect above.

In a twentieth aspect, an embodiment of the present application provides a communication apparatus, including: a processor and a memory; the memory is for storing computer instructions that, when executed by the processor, cause the communications apparatus to perform the method performed by the network device in any one of the above aspects or any one of the possible designs of any one of the aspects. The communication device may be a network device in the second aspect or any one of the possible designs of the second aspect, or a chip for implementing the functions of the network device; alternatively, the communication device may be a network device in any one of the possible designs of the fourth aspect or the fourth aspect, or a chip for implementing the functions of the network device; alternatively, the communication device may be a network device in any one of the above sixth aspect or any one of the possible designs of the sixth aspect, or a chip that implements the functions of the above network device; alternatively, the communication device may be a network device in any of the above eighth or eighth possible designs, or a chip implementing the above network device functions.

In a twenty-first aspect, an embodiment of the present application provides a communication apparatus, including: a processor; the processor is coupled to the memory for reading the instructions in the memory and executing the instructions to cause the communication device to perform the method performed by the network apparatus as in any one of the above aspects or any one of the possible designs of the aspect. The communication device may be a network device in the second aspect or any one of the possible designs of the second aspect, or a chip for implementing the functions of the network device; alternatively, the communication device may be a network device in any one of the possible designs of the fourth aspect or the fourth aspect, or a chip for implementing the functions of the network device; alternatively, the communication device may be a network device in any one of the above sixth aspect or any one of the possible designs of the sixth aspect, or a chip that implements the functions of the above network device; alternatively, the communication device may be a network device in any of the above eighth or eighth possible designs, or a chip implementing the above network device functions.

In a twenty-second aspect, an embodiment of the present application provides a chip including a logic circuit and an input-output interface. The input-output interface is used for communicating with a module outside the chip. For example, the chip may be a chip implementing the functionality of the network device in the second aspect or any of the possible designs of the second aspect. The input-output interface inputs the first UCI or the second UCI. Logic circuitry is to run a computer program or instructions to implement the method of the second aspect above or any of the possible designs of the second aspect. Alternatively, the chip may be a chip implementing the network device functions in any of the above-described fourth or fourth possible designs. The input-output interface inputs the first UCI and the second UCI. Logic circuitry is to run a computer program or instructions to implement the method in any of the above fourth aspect or any of the possible designs of the fourth aspect. Alternatively, the chip may be a chip implementing the network device function in any of the above-described sixth aspect or any of the possible designs of the sixth aspect. The input-output interface inputs the first UCI or the second UCI. Logic circuitry is to run a computer program or instructions to implement the method of the sixth aspect above or any one of the possible designs of the sixth aspect. Alternatively, the chip may be a chip implementing the network device function in any of the above-mentioned eighth or eighth possible designs. The input-output interface inputs the first UCI or the second UCI. Logic circuitry is to run a computer program or instructions to implement the method in any one of the above eighth or eighth possible designs.

In a twenty-third aspect, an embodiment of the present application provides a computer-readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the uplink control information transmission method of any one of the above aspects.

In a twenty-fourth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer, enable the computer to perform the uplink control information transmission method of any one of the above aspects.

In a twenty-fifth aspect, an embodiment of the present application provides a circuit system, the circuit system including a processing circuit configured to perform the uplink control information transmission method according to any one of the above aspects.

In a twenty-sixth aspect, an embodiment of the present application provides a communication system, including the terminal device and the network device in any one of the above aspects.

The technical effects of any one of the designs of the second aspect to the twenty-sixth aspect may refer to the advantages of the corresponding methods provided above, and will not be repeated here.

Drawings

FIG. 1 is a schematic diagram of resource distribution according to an embodiment of the present application;

FIG. 2 is a schematic diagram of another resource distribution according to an embodiment of the present application;

FIG. 3a is a schematic diagram of another resource distribution according to an embodiment of the present application;

FIG. 3b is a schematic diagram of another resource distribution according to an embodiment of the present application;

FIG. 3c is a schematic diagram of another resource distribution according to an embodiment of the present application;

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

fig. 5 is a flow chart of an uplink control information transmission method according to an embodiment of the present application;

fig. 6a is a schematic flow chart of another uplink control information transmission method according to an embodiment of the present application;

fig. 6b is a schematic flow chart of another uplink control information transmission method according to an embodiment of the present application;

fig. 7 is a flow chart of another uplink control information transmission method according to an embodiment of the present application;

fig. 8 is a flow chart of another uplink control information transmission method according to an embodiment of the present application;

FIG. 9 is a schematic diagram of another resource distribution provided by an embodiment of the present application;

fig. 10 is a flow chart of another uplink control information transmission method according to an embodiment of the present application;

FIG. 11 is a schematic diagram of another resource distribution provided by an embodiment of the present application;

FIG. 12a is a schematic diagram of another resource distribution provided by an embodiment of the present application;

FIG. 12b is a schematic diagram of another resource distribution provided by an embodiment of the present application;

FIG. 12c is a schematic diagram of another resource distribution provided by an embodiment of the present application;

fig. 13 is a flow chart of another uplink control information transmission method according to an embodiment of the present application;

FIG. 14 is a schematic diagram of another resource distribution provided by an embodiment of the present application;

FIG. 15 is a schematic diagram of another resource distribution provided by an embodiment of the present application;

fig. 16 is a flow chart of another uplink control information transmission method according to an embodiment of the present application;

fig. 17 is a flow chart of another uplink control information transmission method according to an embodiment of the present application;

FIG. 18 is a schematic diagram of another resource distribution provided by an embodiment of the present application;

FIG. 19a is a schematic diagram of another resource distribution according to an embodiment of the present application;

fig. 19b is a flowchart of another uplink control information transmission method according to an embodiment of the present application;

fig. 20 is a flowchart of another uplink control information transmission method according to an embodiment of the present application;

fig. 21 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 22 is a schematic structural diagram of still another communication device according to an embodiment of the present application.

Detailed Description

The terms "first" and "second" and the like in the description and in the drawings are used for distinguishing between different objects or between different processes of the same object and not for describing a particular order of objects. Furthermore, references to the terms "comprising" and "having" and any variations thereof in the description of the present application are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus. It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

First, technical terms related to the embodiments of the present application are described:

1. physical uplink control channel (physical uplink control channel, PUCCH)

The PUCCH is used to carry uplink control information (uplink control information, UCI). The UCI type includes at least one of: hybrid automatic repeat request acknowledgement (hybrid automatic repeat request acknowledgment, HARQ-ACK) information, scheduling request (scheduling request, SR) information, and channel state information (channel state information, CSI). The HARQ-ACK information is used to feed back to the network device whether the physical downlink shared channel (physical downlink shared channel, PDSCH) is decoded correctly. The SR information is used to request uplink resources from the network device for transmission of uplink data on a physical uplink shared channel (physical uplink shared channel, PUSCH). The CSI is used for feeding back the downlink channel quality to the network equipment, and the network equipment selects a downlink channel with better channel quality according to the fed back CSI to perform downlink data scheduling.

There are 5 formats of the PUCCH formats (formats), including PUCCH formats 0 to 4, as shown in table 1. The length of PUCCH format 0 is 1 or 2 orthogonal frequency division multiplexing (orthogonal frequency division multiplexing, OFDM) symbols, occupies 1 physical resource module (physical resource block, PRB) on the frequency domain, and the number of bits (bits) of the transmission UCI is less than or equal to 2. The length of the PUCCH format 1 is 4-14 symbols, 1 PRB is occupied on the frequency domain, and the number of bits for transmitting UCI is less than or equal to 2.PUCCH format 2 is 1 or 2 symbols in length, occupies a maximum of 16 PRBs in the frequency domain, and has a number of bits for transmitting UCI greater than 2. The length of the PUCCH format 3 is 4 to 14 symbols, occupies 1 or more PRBs in the frequency domain, and the number of bits for transmitting UCI is greater than 2. Wherein, the number of PRBs occupied by the PUCCH format 3 on the frequency domain is a multiple of 2, 3 or 5. The length of the PUCCH format 4 is 4 to 14 symbols, and occupies 1 PRB in the frequency domain, and the number of bits for transmitting UCI is greater than 2.

TABLE 1

The number of symbols of PUCCH format 0 and PUCCH format 2 is 1 or 2, which is called short PUCCH. The number of symbols of PUCCH format 1, PUCCH format 3 and PUCCH format 4 is {4-14}, referred to as long PUCCH.

2. PUCCH group (PUCCH group), "Carrier switch"

One PUCCH group includes at least one carrier (carrier). And, only one carrier can be used for transmitting PUCCH in one PUCCH group. The carrier for transmitting the PUCCH may be a primary carrier or a secondary carrier. There are at most 2 PUCCH groups, called a primary PUCCH group (primary PUCCH group) and a secondary PUCCH group (secondary PUCCH group). The "carrier" may be described as "component carrier (component carrier)", or "cell". The "carrier" and the "cell" may be replaced, one carrier corresponds to one cell, and one cell may be configured with one carrier, or may be configured with multiple carriers.

The carrier switching refers to that, in a case where UCI is transmitted on a certain carrier, for example, carrier a, if PUCCH resources for transmitting the UCI on the carrier overlap with downlink resources on the carrier in the time domain, PUCCH for carrying the UCI is transmitted on another carrier, for example, carrier B. The two carriers, i.e., carrier a and carrier B, may be two carriers in the same PUCCH group or may be carriers in different PUCCH groups. The carrier switching process is completed in one time domain resource unit, and it can be understood that when the PUCCH is switched from one carrier to another carrier, the time domain resource of the PUCCH is in one time domain resource unit and cannot cross the boundary of the time domain resource unit. The time domain resource unit may be at least one of: time slots, or sub-frames, or radio frames. That is, UCI cannot cross slots or sub slots when it is cut from one carrier to another. The "carrier switch" may also be described as "PUCCH carrier switch", or "UCI carrier switch". Exemplary, the description of the "carrier switch" procedure is as follows:

In the main PUCCH group, when the PUCCH on the main carrier carries HARQ-ACK information, HARQ-ACK information corresponding to PDSCH on other carriers in the PUCCH group is also fed back on the main carrier. Wherein K1 indicates a time delay between PDSCH and HARQ-ACK information feedback. For example, referring to fig. 1, the terminal device receives downlink data through the PDSCH on slot 0. The terminal device determines "k1=3", i.e., the third slot (e.g., slot 3 in fig. 1) after the slot (e.g., slot 0 in fig. 1) in which the PDSCH is located, feeds back HARQ-ACK information. The "HARQ-ACK information corresponding to PDSCH on the primary carrier" and the "HARQ-ACK information corresponding to PDSCH on the secondary carrier 1" are transmitted through PUCCH on the primary carrier, as indicated by the curved arrow in fig. 1. In fig. 1, "D" represents one or more downlink symbols, "U" represents one or more uplink symbols, and "F" represents one or more flexible symbols (flexible symbols).

As can be seen from fig. 1, since the symbols in slot 0 and slot 1 on the primary carrier are all downlink symbols, they cannot be used for PUCCH transmission. Therefore, the transmission delay of the HARQ-ACK information increases.

In order to reduce the transmission delay of the HARQ-ACK information, the HARQ-ACK information may be fed back on one carrier other than the primary carrier in the PUCCH group. For example, referring to fig. 2, since the symbols in slot 1 on secondary carrier 1 are all uplink symbols, PUCCH transmission may be used. Thus, HARQ-ACK information may be fed back on slot 1 of secondary carrier 1. The carrier wave for feeding back the HARQ-ACK information may be dynamically indicated by downlink control information (downlink control information, DCI), may be semi-statically configured, or may be determined by a preset rule. By way of example, the preset rules may be, for example and without limitation: the carriers feeding back the HARQ-ACK information are determined in order of the index (index) of the carriers from small to large.

After the terminal device determines that HARQ-ACK information is fed back on the secondary carrier 1, the following situations may exist: the "PUCCH resource carrying HARQ-ACK information on the secondary carrier 1" overlaps with the "PUCCH resource on a carrier other than the secondary carrier 1" in the PUCCH group in the time domain. That is, there is a case where PUCCH resources on different carriers overlap in the time domain. The term "overlapping in the time domain" as used herein includes "partially overlapping in the time domain" or "completely overlapping in the time domain". For example, a "overlapping" with B means: the resources occupied by a and B in the time domain have the same portion. For example, the resources occupied by a and B in the time domain are identical, or a portion of the resources occupied by a in the time domain is identical to all the resources occupied by B in the time domain, i.e., a includes B, or B portion of the resources occupied by B in the time domain is identical to all the resources occupied by a in the time domain, i.e., B includes a, or a portion of the resources occupied by a in the time domain is identical to a portion of the resources occupied by B in the time domain.

The following is presented by way of three examples:

in the first case,

Referring to fig. 3a, the "subcarrier spacing of the primary carrier" is the same as the "subcarrier spacing of the secondary carrier 1". The PUCCH resource carrying HARQ-ACK information on the primary carrier and the PUCCH resource carrying CSI on the primary carrier do not overlap in time domain, but the PUCCH resource carrying HARQ-ACK information on the primary carrier overlaps in time domain with the downlink symbol on the primary carrier, as shown by symbol index 1 to symbol index 8 on the primary carrier in fig. 3 a. In this case, the terminal device reselects one PUCCH resource on the secondary carrier 1 (as shown by "symbol index 7 to symbol index 11" on the secondary carrier 1 in fig. 3 a) to transmit the HARQ-ACK information. However, the "PUCCH resource reselected on the secondary carrier 1" overlaps with the "PUCCH resource carrying CSI on the primary carrier" in the time domain, and the "PUCCH resource reselected on the secondary carrier 1" overlaps with the "PUCCH resource carrying CSI on the primary carrier" in the symbol corresponding to the symbol index 11, as shown in fig. 3 a.

In the second case,

Referring to fig. 3b, the "subcarrier spacing of the primary carrier" is the same as the "subcarrier spacing of the secondary carrier 1". The PUCCH resource carrying HARQ-ACK information on the primary carrier overlaps with the downlink symbol on the primary carrier in the time domain, as shown by the symbol index 4 to symbol index 10 on the primary carrier in fig. 3 b. The "PUCCH resource carrying HARQ-ACK information on the primary carrier" also overlaps with the "PUCCH resource carrying CSI on the primary carrier" in the time domain, as in fig. 3b, the "PUCCH resource carrying HARQ-ACK information on the primary carrier" overlaps with the "PUCCH resource carrying CSI on the primary carrier" on the symbol corresponding to the symbol index 11. In this case, the terminal device determines PUCCH resources (shown as "symbol index 4 to symbol index 11" corresponding to the secondary carrier 1 in fig. 3 b) on the secondary carrier 1 to transmit the HARQ-ACK information. However, the "PUCCH resource on secondary carrier 1" overlaps with the "PUCCH resource on primary carrier that carries CSI" in the time domain, e.g. the "PUCCH resource on secondary carrier 1" overlaps with the "PUCCH resource on primary carrier that carries CSI" in the symbol corresponding to symbol index 11.

In the third case,

Referring to fig. 3c, the "subcarrier spacing of the primary carrier" is different from the "subcarrier spacing of the secondary carrier 1". The PUCCH resource carrying HARQ-ACK information on the primary carrier and the PUCCH resource carrying CSI on the primary carrier do not overlap in the time domain, but the PUCCH resource carrying HARQ-ACK information on the primary carrier overlaps in the time domain with the downlink symbol on the primary carrier. In this case, the terminal device determines PUCCH resources (shown as "symbol index 1 to symbol index 11" corresponding to the secondary carrier 1 in fig. 3 c) on the secondary carrier 1 to transmit the HARQ-ACK information. In fig. 3c, the subcarrier spacing of the primary carrier is 30kHz and the subcarrier spacing of the secondary carrier is 15kHz. The "PUCCH resource on secondary carrier 1" overlaps with the "PUCCH resource carrying CSI on primary carrier" in the time domain.

In summary, when PUCCH resources on different carriers overlap in the time domain, the terminal device simultaneously transmits two or more UCI, and the transmission performance of UCI is affected.

The embodiment of the application provides an uplink control information transmission method, which is suitable for various communication systems. The uplink control information transmission method provided by the embodiment of the application can be applied to a long term evolution (long term evolution, LTE) system, a fifth-generation (5G) communication network, other similar networks or other networks in the future. Fig. 4 is a schematic architecture diagram of a communication system applicable to the uplink control information transmission method according to the embodiment of the present application, where the communication system may include a terminal device 40 and a network device 41. Wherein the terminal device 40 is wirelessly connected to the network device 41. The number of the terminal devices 40 may be one or more, and the number of the network devices 41 may be one or more. Only one network device 41 and two terminal devices 40 are shown in fig. 4. Fig. 4 is only a schematic diagram, and does not limit the applicable scenario of the communication method according to the embodiment of the present application.

The terminal device 40, also called a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device that provides voice/data connectivity to a user, for example, a handheld device or an in-vehicle device with a wireless connection function, etc. The terminal device may specifically be: a mobile phone, a tablet, a notebook, a palm, a mobile internet device (mobile internet device, MID), a wearable device, a Virtual Reality (VR) device, an augmented reality (augmented reality, AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self driving), a wireless terminal in teleoperation (remote medical surgery), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), or a wireless terminal in smart home (smart home), a terminal device in a 5G communication network or a communication network after 5G, and the like, to which embodiments of the present application are not limited.

The network device 41 is a device in a wireless communication network, such as a radio access network (radio access network, RAN) node that accesses the terminal device 40 to the wireless communication network. Currently, some examples of RAN nodes are: a gNB, a transmission and reception point (transmission reception point, TRP), an evolved Node B (eNB), a radio network controller (radio network controller, RNC), a Node B (Node B, NB), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (BBU), or a wireless fidelity (wireless fidelity, wifi) Access Point (AP), or a network side device in a 5G communication network or a communication network after 5G, etc.

The communication system and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided by the embodiments of the present application. As can be known to those skilled in the art, with the evolution of the network architecture and the appearance of new service scenarios, the technical solution provided by the embodiment of the present application is also applicable to similar technical problems.

The uplink control information transmission method provided by the embodiment of the application is specifically described below.

It should be noted that, in the following embodiments of the present application, the names of messages between network elements or the names of parameters in the messages are just an example, and other names may be used in specific implementations, where in the embodiments of the present application, the related resources, such as the first resource, the second resource, the third resource, the fourth resource, the fifth resource, the sixth resource, the seventh resource, the eighth resource, the multiplexing resource 1, the multiplexing resource 2, the target resource 1, the target resource 2, etc., include a time domain resource and a frequency domain resource (or simply referred to as a time-frequency resource), and may include at least one Resource Block (RB) in the frequency domain. This is generally described herein, and will not be described in detail.

The embodiment of the application provides an uplink control information transmission method, which is applied to the transmission process of uplink control information. Referring to fig. 5, the uplink control information transmission method includes the steps of:

s501, the first terminal equipment determines a first resource on a first carrier.

The first carrier may be a primary carrier or a secondary carrier.

Wherein, the introduction of the "first resource" includes the following two aspects:

in a first aspect, a first resource is used to transmit a first UCI. Wherein the information included in the first UCI may include, for example, but not limited to, at least one of: HARQ-ACK information, SR information, and CSI. The first UCI is transmitted through the PUCCH, and the format of the PUCCH may be one of PUCCH formats 0 to 4.

The configuration process of the first resource is as shown in fig. 6 a:

s501a, the network device sends configuration information to the first terminal device. Correspondingly, the first terminal device receives configuration information from the network device.

Wherein the configuration information indicates PUCCH resources. The configuration information indicates at least one of the following information: the one or more PUCCH resource sets, the PUCCH resources in each PUCCH resource set, or the PUCCHs in each PUCCH resource set may include a maximum number of bits of UCI. Wherein, the PUCCH resources in each PUCCH resource set may be: the starting symbol position of the PUCCH, the number of symbols of the PUCCH, or the frequency domain position of the PUCCH, etc.

S501b, the network device sends DCI to the first terminal device. Accordingly, the first terminal device receives DCI from the network device.

Wherein, the DCI indicates PDSCH resources and first resources. The first resource belongs to a resource indicated by the configuration information.

It should be noted that S501b is an optional step. The network device may dynamically schedule the first resource through the DCI. The network device may also configure the first resource of semi-persistent scheduling (SPS) through radio resource control (radio resource control, RRC) signaling. For example, after the first terminal device receives the DCI, the first terminal device determines that the DCI is a semi-static scheduling manner. In this case, the first terminal device saves the information of the DCI, receives data of PDSCH transmission on the same PDSCH resource location every fixed period, and feeds back HARQ-ACK information on the same first resource location. In this case, the PDSCH is a semi-statically scheduled PDSCH configured by higher layer signaling, such as RRC signaling. The PUCCH is configured by higher layer signaling and is used to feedback HARQ-ACK information for the semi-static PDSCH.

It should be noted that, when the first UCI carries CSI or SR, the first resource is also configured by RRC signaling. In the case that the first UCI carries HARQ-ACK information, the uplink information control method according to the embodiment of the present application may further include S501c:

And S501c, the network equipment transmits downlink data to the first terminal equipment through the PDSCH resources. Correspondingly, the first terminal equipment receives downlink data from the network equipment through the PDSCH resource.

The PDSCH resource may be a resource indicated by DCI in S501b, or may be a PDSCH resource of semi-persistent scheduling.

It should be noted that S501c is an optional step. The network device may not perform S501c, i.e. no data is transmitted on PDSCH resources. In this case, the first terminal device cannot receive downlink data from the network device through PDSCH resources, and HARQ-ACK information corresponding to the PDSCH is a negative acknowledgement (negative acknowledgement, NACK).

In a second aspect, the first resource overlaps in time domain with a downlink resource on the first carrier. The downlink resource may be a resource occupied by a downlink symbol, and the downlink resource may also be a resource occupied by a downlink signal. For example, the downlink signal may be a downlink synchronization signal block (synchronization signal block, SSB). One SSB includes a synchronization signal (synchronization signal, SS) and a physical broadcast channel (physical broadcast channel, PBCH).

For example, taking the example that the first resource is a PUCCH resource for feeding back HARQ-ACK information, the first resource overlaps with the downlink symbol in the time domain, and specifically, reference may be made to the description of fig. 3a, fig. 3b, or fig. 3c, which is not repeated here.

S502, the first terminal equipment determines a second resource on a second carrier.

Wherein the second resource is used for transmitting the first UCI.

Wherein the second carrier is a different carrier than the first carrier. For example, in a PUCCH group, where the first carrier is a primary carrier, the second carrier may be a secondary carrier. In the case where the first carrier is one secondary carrier, the second carrier may be the primary carrier, or the second carrier may be another secondary carrier. That is, the first UCI is information transmitted on the first carrier switched to the second carrier after the first terminal device "carrier switching" process. The procedure of "carrier switching" may be referred to in the description of S501 and S502.

Illustratively, in fig. 3a, the first UCI includes HARQ-ACK information. The first carrier is the main carrier, and the second carrier is the auxiliary carrier 1. The second resource is a resource corresponding to the symbol index 7 to the symbol index 11 on the secondary carrier 1. In fig. 3b, the first UCI includes HARQ-ACK information. The first carrier is the main carrier, and the second carrier is the auxiliary carrier 1. The second resource is a resource corresponding to the symbol index 4 to the symbol index 11 on the secondary carrier 1. In fig. 3c, the first UCI includes HARQ-ACK information. The first carrier is the main carrier, and the second carrier is the auxiliary carrier 1. The second resource is a resource corresponding to the symbol index 1 to the symbol index 11 on the secondary carrier 1.

S503, the first terminal device determines that the second resource overlaps with the third resource in the time domain.

Wherein the third resource is used to transmit the second UCI on the third carrier.

The third carrier and the first carrier may be the same carrier, as shown in fig. 3a, 3b, or 3 c.

Alternatively, the third carrier and the second carrier may be the same carrier, as shown in fig. 9, where the first carrier is a primary carrier, and the second carrier and the third carrier are secondary carriers 1. The first UCI includes HARQ-ACK information, which is information transmitted on the secondary carrier 1 after switching from the primary carrier (i.e., the first carrier) to the secondary carrier 1 (i.e., the second carrier). The second resource is a resource corresponding to the symbol index 4 to the symbol index 11 on the secondary carrier 1. The second UCI includes CSI, and the third resource is a resource corresponding to the symbol index 11 to the symbol index 13 on the secondary carrier 1, for example, a resource corresponding to a box where "CSI" without a transversal line is located in fig. 9. The second resource overlaps with the third resource on the resource corresponding to the symbol index 11.

Alternatively, the third carrier is other carrier than the first carrier and the second carrier.

Wherein the information included in the second UCI may include, for example, but not limited to, at least one of: HARQ-ACK information, SR information, and CSI. The information type in the first UCI may be the same as or different from the information type in the second UCI, which is not limited in the embodiment of the present application. The second UCI is transmitted through the PUCCH, and the format of the PUCCH may be one of PUCCH formats 0 to 4. The second UCI may be information that has not undergone the "carrier switching" process of the first terminal device, or may be information that is transmitted on the third carrier after undergoing the "carrier switching" process of the first terminal device, from the fourth carrier. For example, the fourth resource on the fourth carrier is used to transmit the second UCI, and the fourth resource overlaps with the downlink resource on the fourth carrier in the time domain. As such, the first terminal device cannot transmit the second UCI on the fourth resource. The first terminal device determines the third resource on a third carrier.

For example, taking the third carrier and the first carrier as the same carrier as an example, in fig. 3a, the first UCI includes HARQ-ACK information, the second carrier is the secondary carrier 1, and the second resource is the resource corresponding to the symbol index 7 to the symbol index 11 on the secondary carrier 1. The second UCI includes CSI, the third carrier is a primary carrier, and the third resource is a resource corresponding to symbol index 11 to symbol index 13 on the primary carrier. The second resource overlaps with the third resource on the symbol corresponding to the symbol index 11. In fig. 3b, the first UCI includes HARQ-ACK information, the second carrier is the secondary carrier 1, and the second resource is a resource corresponding to symbol index 4 to symbol index 11 on the secondary carrier 1. The second UCI includes CSI, the third carrier is a primary carrier, and the third resource is a resource corresponding to symbol index 11 to symbol index 13 on the primary carrier. The second resource overlaps with the third resource on the symbol corresponding to the symbol index 11. In fig. 3c, the first UCI includes HARQ-ACK information, the second carrier is the secondary carrier 1, and the second resource is the resource corresponding to the symbol index 1 to the symbol index 11 in the slot 0 on the secondary carrier 1. The second UCI includes CSI, the third carrier is a primary carrier, and the third resource is a resource corresponding to symbol index 2 to symbol index 6 in slot 1 on the primary carrier. Since the subcarrier spacing of the primary carrier is 30kHz, the subcarrier spacing of the secondary carrier 1 is 15kHz, and the length of one symbol on the secondary carrier 1 is twice the length of one symbol on the primary carrier. The second resource overlaps with the third resource in the time domain.

S504, the first terminal equipment discards the first UCI on the second resource or discards the second UCI on the third resource. Accordingly, the network device determines whether the first UCI on the second resource is discarded or the second UCI on the third resource is discarded.

That is, for the first terminal device, the first terminal device performs S504a:

s504a, the first terminal device discards the first UCI on the second resource or discards the second UCI on the third resource.

For the network device, the network device performs S504b:

s504b, the network device determines that the first UCI on the second resource is discarded or that the second UCI on the third resource is discarded. Wherein the network device also performs S501 to S503.

Specifically, S504 may have the following several implementations:

in implementation 1, the first terminal device discards the first UCI on the second resource, and the first terminal device sends the second UCI to the network device on the third resource. Accordingly, the network device determines that the first UCI on the second resource is discarded and the network device receives the second UCI from the first terminal device on the third resource, as indicated by the "case 1" dashed box in fig. 5.

Or the first terminal device sends the first UCI to the network device on the second resource and discards the second UCI on the third resource. Accordingly, the network device receives the first UCI on the second resource from the first terminal device and determines that the second UCI on the third resource is discarded, as indicated by the "case 2" dashed box in fig. 5.

In implementation 2, the first terminal device does not send the first UCI to the network device on the second resource, and the first terminal device sends the second UCI to the network device on the third resource. Accordingly, the network device does not receive the first UCI from the first terminal device on the second resource and the network device receives the second UCI from the first terminal device on the third resource.

Or, the first terminal device sends the first UCI to the network device on the second resource, and the first terminal device does not send the second UCI to the network device on the third resource. Accordingly, the network device receives the first UCI from the first terminal device on the second resource and the network device does not receive the second UCI from the first terminal device on the third resource.

In implementation 3, the first terminal device does not send a PUCCH carrying the first UCI to the network device on the second resource, and the first terminal device sends a PUCCH carrying the second UCI to the network device on the third resource. Accordingly, the network device does not receive the PUCCH carrying the first UCI from the first terminal device on the second resource, and the network device receives the PUCCH carrying the second UCI from the first terminal device on the third resource.

Or, the first terminal device sends the PUCCH carrying the first UCI to the network device on the second resource, and the first terminal device does not send the PUCCH carrying the second UCI to the network device on the third resource. Accordingly, the network device receives the PUCCH carrying the first UCI from the first terminal device on the second resource, and the network device does not receive the PUCCH carrying the second UCI from the first terminal device on the third resource.

It should be noted that "discarding the first UCI on the second resource" may be understood as "discarding the PUCCH on the second resource", or may be understood as "discarding the PUCCH carrying the first UCI on the second resource". And, after "discarding the first UCI on the second resource", the first UCI may also be transmitted on other resources, such as PUCCH or PUSCH carrying the UCI on other resources, or PUSCH carrying the UCI on the second resource. Likewise, "dropping the second UCI on the third resource" may be understood as "dropping the PUCCH on the third resource", or may be understood as "dropping the PUCCH carrying the second UCI on the third resource". And, after "discarding the second UCI on the third resource", the second UCI may also be transmitted on other resources, such as PUCCH or PUSCH carrying the UCI on other resources, or PUSCH carrying the UCI on the third resource.

"not receiving the first UCI on the second resource" may be understood as "not detecting the second resource", or may be understood as "not detecting the PUCCH on the second resource", or may be understood as "not detecting the PUCCH carrying the first UCI on the second resource". Likewise, "not receiving the second UCI on the third resource" may be understood as "not detecting the third resource", or may be understood as "not detecting the PUCCH on the third resource", or may be understood as "not detecting the PUCCH carrying the second UCI on the third resource".

Illustratively, the discarded UCI satisfies the preset condition. The implementation of S504a may be described, for example, but not limited to, as follows: and the first terminal equipment determines UCI to be discarded from the first UCI and the second UCI according to the priority of the UCI and/or the resource starting position of the transmission UCI. The "UCI priority" includes the priority of the first UCI and the priority of the second UCI. The "resource start position of transmission UCI" includes a start position of the first resource in the time domain and a start position of the second resource in the time domain.

Taking the above "case 1" as an example, S504a is specifically implemented as: and when the first UCI meets the preset condition, the first terminal equipment discards the first UCI on the second resource.

The preset conditions met by the first UCI include at least one of the following:

the first item, the first UCI having a lower priority than the second UCI, may be, for example, but not limited to, the following five cases:

the first case, the first UCI includes at least one of SR information and CSI, and the second UCI includes HARQ-ACK information. That is, among the SR information, CSI, and HARQ-ACK information, the priority of the HARQ-ACK information is highest. In case that the second UCI includes HARQ-ACK information and the first UCI includes at least one of SR information and CSI, the priority of the first UCI is lower than the priority of the second UCI.

In a second case, the first UCI includes CSI and the second UCI includes SR information. That is, among the SR information and CSI, the SR information has a higher priority. In case that the second UCI includes SR information and the first UCI includes CSI, the priority of the first UCI is lower than that of the second UCI.

In a third case, the first UCI includes CSI of a first priority, and the second UCI includes CSI of a second priority. Wherein the first priority is lower than the second priority. That is, in case that CSI is divided into a plurality of priorities, the priority of CSI in the first UCI is lower than the priority of CSI in the second UCI. Among them, the "priority of CSI" is introduced from the following two aspects: in terms of prioritization, as an embodiment, CSI is used to indicate a measurement result of downlink channel quality, and the priority of CSI may be determined by the downlink channel measurement result to which CSI corresponds. Alternatively, as another embodiment, the priority of CSI may be classified according to the type of CSI, for example, the priority of "aperiodic CSI" is higher than the priority of "semi-continuous CSI", which is higher than the priority of "periodic CSI". The periodic CSI may refer to CSI transmitted to the network device according to a configured transmission period. Semi-persistent CSI may refer to CSI transmitted to a network device in a configured transmission period during an active time of activation until deactivated signaling is received. Aperiodic CSI may refer to CSI that is not transmitted to a network device in a fixed periodicity. In terms of priority indication, one CSI includes one priority value (priority value). The priority value in one CSI indicates the priority of that CSI. The smaller the priority value in one CSI, the higher the priority of that CSI. In this case, the "priority value of CSI in the first UCI" is greater than the "priority value of CSI in the second UCI". Or vice versa, the larger the priority value in one CSI, the higher the priority of that CSI. In this case, the "priority value of CSI in the first UCI" is smaller than the "priority value of CSI in the second UCI".

In a fourth case, the first UCI includes SR information of a first priority, and the second UCI includes SR information of a second priority. Wherein the first priority is lower than the second priority. That is, in case that the SR information is divided into a plurality of priorities, the priority of the SR information in the first UCI is lower than the priority of the SR information in the second UCI. Illustratively, an SR information includes a priority value. The priority value in one SR information indicates the priority of the SR information. The smaller the priority value in one SR information, the higher the priority of the SR information. In this case, the "priority value of SR information in the first UCI" is greater than the "priority value of SR information in the second UCI". Or conversely, the larger the priority value in one SR information, the higher the priority of the SR information. In this case, the "priority value of SR information in the first UCI" is smaller than the "priority value of SR information in the second UCI".

In a fifth case, the first UCI includes HARQ-ACK information of a first priority, and the second UCI includes HARQ-ACK information of a second priority. Wherein the first priority is lower than the second priority. That is, in case that the HARQ-ACK information is divided into a plurality of priorities, the priority of the HARQ-ACK information in the first UCI is lower than the priority of the HARQ-ACK information in the second UCI. Illustratively, one HARQ-ACK information includes one priority value. The priority value in one HARQ-ACK information indicates the priority of the HARQ-ACK information. The smaller the priority value in one HARQ-ACK information, the higher the priority of the HARQ-ACK information. In this case, the "priority value of HARQ-ACK information in the first UCI" is greater than the "priority value of HARQ-ACK information in the second UCI". Or conversely, the larger the priority value in one HARQ-ACK information, the higher the priority of the HARQ-ACK information. In this case, the "priority value of HARQ-ACK information in the first UCI" is smaller than the "priority value of HARQ-ACK information in the second UCI".

In the sixth case, the priority value of the first UCI is 0 and the priority value of the second UCI is 1. Wherein the smaller the priority value, the lower the priority of the priority indication. That is, the priority of UCI is prescribed in advance and indicated by a priority value. In this case, since the priority value in the first UCI is smaller than the priority value in the second UCI, the priority of the first UCI is lower than the priority of the second UCI.

In the seventh case, the priority value of the first UCI is 1 and the priority value of the second UCI is 0. Wherein the smaller the priority value, the higher the priority indicated by the priority. That is, the priority of UCI is prescribed in advance and indicated by a priority value. In this case, since the priority value in the first UCI is greater than the priority value in the second UCI, the priority of the first UCI is lower than the priority of the second UCI.

The second item, the second resource transmitting the first UCI, is later than the third resource. For example, the starting position of the second resource in the time domain is later than the starting position of the third resource in the time domain. For another example, the end position of the second resource in the time domain is later than the end position of the third resource in the time domain.

Taking the above "case 2" as an example, S504a is specifically implemented as: and when the second UCI meets the preset condition, the first terminal equipment discards the second UCI on the third resource.

Wherein the preset condition satisfied by the second UCI includes at least one of:

the priority of the first and second UCI is lower than that of the first UCI, which may be, for example, but not limited to, the following five cases:

the first case, the second UCI includes at least one of SR information and CSI, and the first UCI includes HARQ-ACK information. That is, among the SR information, CSI, and HARQ-ACK information, the priority of the HARQ-ACK information is highest. In case that the first UCI includes HARQ-ACK information and the second UCI includes at least one of SR information and CSI, the priority of the second UCI is lower than that of the first UCI.

In the second case, the second UCI includes CSI and the first UCI includes SR information. That is, among the SR information and CSI, the SR information has a higher priority. In case that the "first UCI includes SR information" and the "second UCI includes CSI", the priority of the second UCI is lower than that of the first UCI.

In a third case, the second UCI includes CSI of the first priority, and the first UCI includes CSI of the second priority. Wherein the first priority is lower than the second priority. That is, in case that CSI is divided into a plurality of priorities, the priority of CSI in the second UCI is lower than the priority of CSI in the first UCI. Wherein one CSI includes one priority value. The priority value in one CSI indicates the priority of that CSI. The smaller the priority value in one CSI, the higher the priority of that CSI. In this case, the "priority value of CSI in the second UCI" is greater than the "priority value of CSI in the first UCI". Or vice versa, the larger the priority value in one CSI, the higher the priority of that CSI. In this case, the "priority value of CSI in the second UCI" is smaller than the "priority value of CSI in the first UCI".

In a fourth case, the second UCI includes SR information of the first priority, and the first UCI includes SR information of the second priority. Wherein the first priority is lower than the second priority. That is, in case that the SR information is divided into a plurality of priorities, the priority of the SR information in the second UCI is lower than the priority of the SR information in the first UCI. Illustratively, an SR information includes a priority value. The priority value in one SR information indicates the priority of the SR information. The smaller the priority value in one SR information, the higher the priority of the SR information. In this case, the "priority value of SR information in the second UCI" is greater than the "priority value of SR information in the first UCI". Or conversely, the larger the priority value in one SR information, the higher the priority of the SR information. In this case, the "priority value of SR information in the second UCI" is smaller than the "priority value of SR information in the first UCI".

In a fifth case, the second UCI includes HARQ-ACK information of the first priority, and the first UCI includes HARQ-ACK information of the second priority. Wherein the first priority is lower than the second priority. That is, in case that the HARQ-ACK information is divided into a plurality of priorities, the priority of the HARQ-ACK information in the second UCI is lower than the priority of the HARQ-ACK information in the first UCI. Illustratively, one HARQ-ACK information includes one priority value. The priority value in one HARQ-ACK information indicates the priority of the HARQ-ACK information. The smaller the priority value in one HARQ-ACK information, the higher the priority of the HARQ-ACK information. In this case, the "priority value of HARQ-ACK information in the second UCI" is greater than the "priority value of HARQ-ACK information in the first UCI". Or conversely, the larger the priority value in one HARQ-ACK information, the higher the priority of the HARQ-ACK information. In this case, the "priority value of HARQ-ACK information in the second UCI" is smaller than the "priority value of HARQ-ACK information in the first UCI".

In the sixth case, the priority value of the second UCI is 0 and the priority value of the first UCI is 1. Wherein the smaller the priority value, the lower the priority of the priority indication. In this case, since the priority value in the second UCI is smaller than the priority value in the first UCI, the priority of the second UCI is lower than the priority of the first UCI.

In the seventh case, the priority value of the second UCI is 1 and the priority value of the first UCI is 0. Wherein the smaller the priority value, the higher the priority indicated by the priority. In this case, since the priority value in the second UCI is greater than the priority value in the first UCI, the priority of the second UCI is lower than the priority of the first UCI.

The third resource of the second item, which transmits the second UCI, is later than the second resource. For example, the starting position of the third resource in the time domain is later than the starting position of the second resource in the time domain. For another example, the end position of the second resource in the time domain is later than the end position of the third resource in the time domain.

For example, in the case where the preset condition is implemented such that the priority of the first term and the second UCI is lower than the priority of the first UCI, the first UCI includes HARQ-ACK information, and in fig. 3a, 3b, or 3c, the second UCI includes CSI, which satisfies the first term preset condition. Therefore, the first terminal device discards the second UCI on the third resource so that UCI with higher priority can be transmitted to the network device.

For example, in the case where the preset condition is implemented such that the above-mentioned "the second item, the third resource transmitting the second UCI is later than the second resource", still taking the example of "the first UCI includes HARQ-ACK information", in fig. 3a, 3b or 3c, the second UCI includes CSI. The starting position of the "resource for transmitting CSI" in the time domain is later than the starting position of the "resource for transmitting HARQ-ACK information" in the time domain, i.e. the fourth preset condition is satisfied. Therefore, the first terminal device discards the second UCI on the third resource so that the UCI that is closer in time can be transmitted to the network device.

It should be noted that, in the case that the preset condition includes the first item and the second item, the first terminal device may first determine whether the first item is satisfied, so that the first terminal device can always send UCI with higher priority preferentially. And under the condition that the priority of the first UCI is the same as that of the second UCI, the first terminal equipment judges whether the second item is satisfied or not, so that the first terminal equipment preferentially transmits the UCI which is more recent in time. S504b differs from S504a in that the execution subject is different. S504a is executed by the first terminal device, S504b is executed by the network device, and the implementation procedure of S504b may be referred to in the description related to S504a, which is not repeated here.

In the uplink control information transmission method provided by the embodiment of the application, when the first terminal equipment determines that the first resource and the downlink resource on the first carrier are overlapped in the time domain, the first terminal equipment does not send the first UCI on the first resource, but determines that the second resource is used for transmitting the first UCI. In the case that the second resource overlaps with the third resource in the time domain, the first terminal device discards one UCI, e.g., the first terminal device discards the first UCI on the second resource or discards the second UCI on the third resource, so that the first terminal device does not need to send the first UCI and the second UCI at the same time. Because the power of the first terminal equipment is fixed, under the condition that the first terminal equipment discards one UCI, the power of the first terminal equipment at a certain moment is used for sending one UCI, and two or more UCI are not sent at the same moment, so that the transmission performance of the UCI is improved.

In some embodiments, in a case where the network device determines which UCI is discarded by the first terminal device, the network device schedules "transmission resources corresponding to UCI discarded by the first terminal device" to other terminal devices. The following is presented by way of two examples:

In case the network device determines that the first UCI on the second resource is discarded, the steps are performed as shown in the dashed box of "case 1" in fig. 6 b:

and step 1, the network equipment sends indication information 1 to the second terminal equipment. Correspondingly, the second terminal device receives the indication information 1 from the network device.

Wherein the indication information 1 indicates that the second resource is used for transmitting interaction information between the second terminal device and the network device. The indication information 1 may be RRC signaling or DCI.

In example two, in the case where the network device determines that the second UCI on the third resource is discarded, the steps are performed as shown in the dashed box of "case 2" in fig. 6 b:

and 2, the network equipment sends indication information 2 to the second terminal equipment. Correspondingly, the second terminal device receives the indication information 2 from the network device.

Wherein the indication information 2 indicates that the third resource is used for transmitting interaction information between the second terminal device and the network device. The indication information 2 may be RRC signaling or DCI.

That is, in the case that the first terminal device discards UCI on a certain resource, the resource is not utilized by the first terminal device, and the network device may allocate the resource that is not utilized by the first terminal device to the second terminal device, so as to improve the resource utilization rate.

In some embodiments, referring to fig. 7, the uplink control information transmission method according to the embodiment of the present application further includes S505:

s505, the network device sends the indication information 3 to the first terminal device. Correspondingly, the first terminal device receives the indication information 3 from the network device.

Wherein the indication information 3 indicates the first terminal device to discard one UCI of the first UCI and the second UCI. The indication information 3 may be implemented as RRC signaling or other signaling, which is not limited in the embodiment of the present application. After the first terminal apparatus performs S505, S504a is performed. That is, the first terminal device determines which UCI of the first UCI and the second UCI is discarded according to the indication information 3, so that the network device can flexibly control the first terminal device, and also can reduce the processing complexity of the first terminal device side.

The first terminal device may execute S505 before executing S504a. The execution order of S505 and "any one of S501, S502, and S503" is not limited in the embodiment of the present application. For example, the first terminal device may perform S505 first and then "S501, S502, and S503", or the first terminal device may perform S505 first and then "any of S501, S502, and S503", or the first terminal device may perform "S501, S502, and S503", and then S505, or the first terminal device may perform "any of S501, S502, and S503", and then S505, or the first terminal device may perform S505 and "any of S501, S502, and S503" simultaneously.

In some embodiments, for the "UCI discarded by the first terminal device", the first terminal device has the following two processing manners:

in the first processing manner, the first terminal device does not send the UCI discarded in S504a on the other carrier in the PUCCH group. Taking "case 1 in fig. 7" as an example, the first terminal device discards the first UCI on the second resource, and the first terminal device does not transmit the first UCI on "other carriers than the second carrier in the PUCCH group. Taking "case 2 in fig. 7" as an example, the first terminal device discards the second UCI on the third resource, and the first terminal device does not transmit the second UCI on the other carrier than the third carrier in the PUCCH group.

In this processing manner, S504 may be implemented as follows:

the first terminal device discards the first UCI on the second resource, and the first terminal device does not transmit the first UCI on the other carriers than the second carrier in the PUCCH group, and the first terminal device transmits the second UCI to the network device on the third resource. Accordingly, the network device determines that the first UCI on the second resource is discarded, and the network device does not receive the first UCI from the first terminal device on the "other carriers than the second carrier in the PUCCH group", and the network device receives the second UCI from the first terminal device on the third resource.

Or the first terminal device discards the second UCI on the third resource, and the first terminal device does not send the second UCI on the other carriers than the third carrier in the PUCCH group, and the first terminal device sends the first UCI to the network device on the second resource. Accordingly, the network device determines that the second UCI on the third resource is discarded, and the network device does not receive the second UCI from the first terminal device on the "other carriers than the third carrier in the PUCCH group", and the network device receives the first UCI from the first terminal device on the second resource.

And the second processing mode is that the first terminal equipment sends UCI discarded by the first terminal equipment on other carriers. Taking "case 1 in fig. 8" as an example, the first terminal device discards the first UCI on the second resource, but the first terminal device transmits the first UCI on "other carriers than the second carrier in PUCCH group". The "other carriers than the second carrier in the PUCCH group" may be a third carrier, that is, the first UCI and the second UCI are transmitted through the same carrier. Taking "case 2 in fig. 8" as an example, the first terminal device discards the second UCI on the third resource, but the first terminal device transmits the second UCI on the other carrier than the third carrier in the PUCCH group. The "other carriers than the third carrier in the PUCCH group" may be the second carrier, that is, the first UCI and the second UCI are transmitted through the same carrier.

In this processing manner, S504 may be implemented as follows:

the first terminal device discards the first UCI on the second resource, but the first terminal device transmits the first UCI on the other carriers than the second carrier in the PUCCH group. Accordingly, the network device determines that the first UCI on the second resource is discarded, but the network device receives the first UCI from the first terminal device on the other carriers than the second carrier in the PUCCH group.

Or, the first terminal device discards the second UCI on the third resource, but the first terminal device transmits the second UCI on the other carriers than the third carrier in the PUCCH group. Accordingly, the network device determines that the second UCI on the third resource is discarded, but the network device receives the second UCI from the first terminal device on the other carrier than the third carrier in the PUCCH group.

When the first UCI and the second UCI are sent on the same carrier, the first terminal device sends a PUCCH carrying the first UCI and a PUCCH carrying the second UCI to the network device. Correspondingly, the network device receives the PUCCH carrying the first UCI from the first terminal device and the PUCCH carrying the second UCI. Or the first terminal device sends the PUCCH carrying the first UCI and the second UCI to the network device. Correspondingly, the network device receives the PUCCH carrying the first UCI and the second UCI from the first terminal device.

The second processing mode can be pre-agreed or indicated by the network device. In the case where the "network device instructs the first terminal device to adopt the second processing mode", referring to fig. 8, the first terminal device further executes S506:

s506, the network equipment sends indication information 4 to the first terminal equipment. Correspondingly, the first terminal device receives the second indication information 4 from the network device.

Wherein the indication information 4 indicates that the first terminal device sends the first UCI and the second UCI on the same carrier. The indication information 4 may be RRC signaling or other signaling, which is not limited in the embodiment of the present application. That is, after S504a, the first terminal device sends the first UCI on the third carrier to the network device even though the first terminal device discards the first UCI on the second resource. The first terminal device also transmits the second UCI on the second carrier to the network device even though the first terminal device discards the second UCI on the third resource.

Note that, the indication information 3 and the indication information 4 may be the same message or may be different messages, which is not limited in this embodiment.

In the second processing manner, in the case of transmitting the first UCI and the second UCI through the same carrier, the UCI transmission procedure is described as follows:

First, taking "the first terminal device discards the first UCI on the second resource" as an example, referring to the dashed box of "case 1" in fig. 8, the first terminal device further performs S507a:

s507a, the first terminal device determines a target resource 1 on the third carrier.

Wherein the target resource 1 is determined based on the second resource. Target resource 1 may be, but is not limited to, the following four cases:

in the first case, the number of symbols of the target resource 1 is the same as that of the second resource, but is different in the time domain start position.

In the second case, the number of symbols of the target resource 1 is different from that of the second resource, but the same in the time domain start position.

In the third case, the number of symbols of the target resource 1 is different from that of the second resource, and is different in the time domain start position. Illustratively, the number of symbols of the target resource 1 is determined based on the number of symbols of the second resource.

In the fourth case, the number of symbols of the target resource 1 is the same as that of the second resource, and is the same in the time domain start position.

Wherein the target resource 1 and the third resource are resources on the same carrier. And, the target resource 1 may or may not overlap with the third resource in the time domain. In the case that the target resource 1 and the third resource do not overlap in time domain, the transmission procedure of the first UCI and the second UCI is as follows:

S507b, the first terminal device determines to send the first UCI to the network device on the target resource 1 and to send the second UCI to the network device on the third resource. Accordingly, the network device receives the first UCI from the first terminal device on the target resource 1 and the second UCI from the first terminal device on the third resource.

In case that the "target resource 1 overlaps with the third resource in the time domain", the first UCI and the second UCI are transmitted in a multiplexed manner, that is, the first UCI and the second UCI are multiplexed and then transmitted on one PUCCH. The concrete introduction is as follows:

s507c, the first terminal device determines multiplexing resource 1 on the third carrier.

Wherein the multiplexed resource 1 is a resource determined based on the second resource and the third resource. Multiplexing resource 1 may be, but is not limited to, one of the following: the third resource, another resource on the third carrier that is distinct from the third resource, such as a sixth resource.

For example, the first UCI includes at least two bits, and the PUCCH on the second resource can carry at least two bits of UCI. The second UCI includes at least two bits, and the PUCCH on the third resource can carry at least two bits of UCI. Since the first UCI and the second UCI are transmitted in a multiplexed manner, the number of bits that the PUCCH on multiplexing resource 1 can carry UCI is at least 4. In case that the PUCCH on the third resource can carry 4-bit UCI, multiplexing resource 1 may be the third resource. Of course, the first terminal device may also determine a resource, such as a sixth resource, on the third carrier that is different from the third resource.

S507d, the first terminal device determines to send the first UCI and the second UCI to the network device on the multiplexing resource 1. Accordingly, the network device receives the first UCI and the second UCI from the first terminal device on the multiplexing resource 1.

It should be noted that the network device also performs S507a to determine on which resources the first UCI is received. Or the network device performs S507a and S507c as well to determine on which resources the first UCI and the second UCI are received.

In this way, the first terminal device sends the first UCI and the second UCI to the network device on the same carrier through the second processing manner, which can avoid the PUCCH resource collision on the cross carrier and enable the first UCI to be normally transmitted.

Then, taking the example of "the first terminal device discards the second UCI on the third resource", referring to the dotted line box of "case 2" in fig. 8, the first terminal device further performs S507e:

s507e, the first terminal device determines the target resource 2 on the second carrier.

Wherein the target resource 2 is determined based on the third resource. The target resource 2 may be, but is not limited to, the following four cases:

in the first case, the number of symbols of the target resource 2 is the same as that of the third resource, but is different in the time domain start position.

In the second case, the number of symbols of the target resource 2 is different from that of the third resource, but the same in the time domain start position.

In the third case, the number of symbols of the target resource 2 is different from that of the third resource, and is different in the time domain start position. Illustratively, the number of symbols of the target resource 2 is determined based on the number of symbols of the third resource.

In the fourth case, the number of symbols of the target resource 2 is the same as that of the third resource, and is the same in the time domain start position.

Illustratively, taking fig. 9 as an example, the first UCI includes HARQ-ACK information, which is information transmitted on the secondary carrier 1 after switching from the primary carrier to the secondary carrier 1, as shown by the curved arrow in fig. 9. The second carrier is the secondary carrier 1, and the second resource is the resource corresponding to the symbol index 4 to the symbol index 11 on the secondary carrier 1. The second UCI includes CSI, the third carrier is a primary carrier, and the third resource is a resource corresponding to symbol index 11 to symbol index 13 on the primary carrier. The second UCI has a lower priority than the first UCI, the second UCI (i.e., CSI) on the primary carrier is discarded, and is transmitted on the secondary carrier 1, as shown by the curved arrow in fig. 9. The fourth condition is satisfied when the target resource 2 is determined based on the third resource, that is, the target resource 2 is a resource corresponding to the symbol index 11 to the symbol index 13 on the secondary carrier 1.

Wherein the target resource 2 and the second resource are resources on the same carrier. And, the target resource 2 and the second resource may overlap in the time domain. For example, still taking fig. 9 as an example, the first UCI includes HARQ-ACK information, the second carrier is the secondary carrier 1, and the second resource is a resource corresponding to the symbol index 4 to the symbol index 11 on the secondary carrier 1. The target resource 2 is a resource corresponding to the symbol index 11 to the symbol index 13 on the secondary carrier 1. That is, the target resource 2 overlaps with the second resource in the time domain. The target resource 2 may not overlap with the second resource in the time domain. In the case of "the target resource 2 and the second resource do not overlap in time domain", the transmission procedure of the first UCI and the second UCI is as follows:

s507f, the first terminal device determines to send the second UCI to the network device on the target resource 2, and to send the first UCI to the network device on the second resource. Accordingly, the network device receives the second UCI from the first terminal device on the target resource 2 and the first UCI from the first terminal device on the second resource.

In the case that the target resource 2 overlaps with the second resource in the time domain, the first UCI and the second UCI are transmitted in a multiplexed manner, which is specifically described as follows:

S507g, the first terminal device determines multiplexing resource 2 on the second carrier.

Wherein the multiplexed resource 2 is a resource determined based on the second resource and the third resource. Multiplexing resource 2 may be, but is not limited to, one of the following: the second resource, another resource on the second carrier that is distinct from the second resource, such as a seventh resource.

For example, still taking fig. 9 as an example, the first UCI includes HARQ-ACK information, the second carrier is the secondary carrier 1, and the second resource is a resource corresponding to the symbol index 4 to the symbol index 11 on the secondary carrier 1. The second UCI includes CSI, the third carrier is a primary carrier, and the third resource is a resource corresponding to symbol index 11 to symbol index 13 on the primary carrier. The multiplexing resource 2 is determined based on the second resource (for example, the resource corresponding to the frame where "HARQ-ACK" is located on the secondary carrier 1 in fig. 9) and the third resource (for example, the resource corresponding to the frame where "CSI" is located on the secondary carrier 1 in fig. 9). The multiplexing resource 2 may be a resource corresponding to a frame where "HARQ-ack+csi" is located on the secondary carrier 1.

S507h, the first terminal device determines to send the first UCI and the second UCI to the network device on the multiplexing resource 2. Accordingly, the network device receives the first UCI and the second UCI from the first terminal device on multiplexing resource 2.

In this way, the first terminal device sends the first UCI and the second UCI to the network device on the same carrier through the second processing manner, which can avoid the phenomenon that PUCCH resources collide on the cross carrier and the second UCI is not sent to the network device.

In some embodiments, taking "the first UCI transmitted on the second resource is discarded" as an example, referring to the dashed box of "case 1" in fig. 10, when the second resource overlaps with the PUSCH resource on the second carrier in the time domain, the first terminal device further performs S508:

s508, the first terminal device determines to send the first UCI to the network device on the PUSCH resource of the second carrier. Correspondingly, the network device receives the first UCI from the first terminal device on the PUSCH resource of the second carrier.

For example, still taking the "first UCI as HARQ-ACK information" as an example, referring to fig. 11, the second carrier is the secondary carrier 1, and the second resource is the resource corresponding to the symbol index 4 to the symbol index 11 on the secondary carrier 1. And, the resources corresponding to the symbol indexes 4 to 11 on the secondary carrier 1 are PUSCH resources. That is, PUSCH resources on the second carrier overlap with the second resources. In this case, the first terminal device multiplexes the information carried on the PUSCH on the second carrier with the first UCI, and sends the first UCI to the network device by using the PUSCH resource on the second carrier, where the first terminal device does not send the first UCI to the network device through the second resource, so as to avoid the problem of "PUCCH resource collision on the cross carrier", so that the first UCI is normally transmitted, and thus, the transmission performance of the UCI is improved.

Taking the example of "the second UCI transmitted on the third resource is discarded", referring to the dashed box of "case 2" in fig. 10, when the third resource overlaps with the PUSCH resource on the third carrier in the time domain, the first terminal device further performs S509:

s509, the first terminal device determines to send the second UCI to the network device on the PUSCH resource of the third carrier. Correspondingly, the network device receives the second UCI from the first terminal device on the PUSCH resource of the third carrier.

That is, the first terminal device multiplexes the information carried on the PUSCH on the third carrier with the second UCI, and sends the second UCI to the network device by using the PUSCH resource on the third carrier, so that the first terminal device does not send the second UCI to the network device through the third resource, so as to avoid the problem of "PUCCH resource collision on the cross carrier", and also enable the second UCI to be normally transmitted, thereby improving the transmission performance of the UCI.

After the first terminal device performs S503, the first terminal device may perform S508 (or S509) instead of S504 a. Accordingly, after the network device performs S503, the network device may also perform S508 (or S509) instead of S504b to solve the problem of "PUCCH resource collision on cross carrier".

In addition, in the case where the third carrier and the second carrier are the same carrier, the first terminal device determines which UCI of the first UCI and the second UCI to discard based on S504. Alternatively, the first UCI is transmitted in a multiplexed manner with the second UCI.

In the case of transmission of the first UCI and the second UCI in a multiplexed manner, if the resources occupied when the first UCI and the second UCI are transmitted in the multiplexed manner do not overlap with the downlink resources, the first UCI and the second UCI are transmitted in the multiplexed manner through a third carrier (i.e., the second carrier). Illustratively, still taking fig. 9 as an example, the second carrier and the third carrier are secondary carriers 1. The first UCI includes HARQ-ACK information and the second UCI includes CSI. When the first UCI and the second UCI are transmitted in a multiplexing manner, the occupied resources are resources corresponding to the symbol index 4 to the symbol index 1 on the secondary carrier 1, such as resources corresponding to the box where "HARQ-ack+csi" is located in fig. 9. The first UCI and the second UCI are transmitted in a multiplexed manner on the resources corresponding to symbol index 4 to symbol index 1 on the secondary carrier 1.

If the resources occupied when the first UCI and the second UCI are transmitted in the multiplexing manner overlap with the downlink resources, the first UCI and the second UCI are transmitted in the multiplexing manner through a fifth carrier, and the determining process of the resources on the fifth carrier for transmitting the first UCI and the second UCI may refer to the description of "mode one" in fig. 13, which is not repeated here.

In addition, as a possible implementation manner, after the first terminal device performs S501, the first terminal device does not perform S502, but performs the following steps:

step 1, the first terminal device determines to send a first UCI to the network device on a seventh resource of the first carrier. Correspondingly, the network device determines to receive the first UCI from the network device on the seventh resource of the first carrier.

Wherein the seventh resource comprises an uplink symbol or a flexible symbol of the first carrier. The seventh resource is a resource in the same time domain resource unit as the first resource. The time domain resource unit may be one of the following: time slots, sub-frames, or radio frames.

For example, as shown in fig. 12a, the first UCI is HARQ-ACK information, the first carrier is a primary carrier, and the first resource is a resource corresponding to symbol index 1 to symbol index 3 on the primary carrier, e.g., a resource location corresponding to "HARQ-ACK" in the upper dashed box in fig. 12 a. The symbol indexes of the flexible symbols on the primary carrier, which are located in the same slot as the first resource, are "symbol index 11 to symbol index 13". The first resource is the same as the flexible symbol described above in number of symbols, that is, the first UCI may be carried on the flexible symbol described above. The resources corresponding to the symbol indexes 1 to 3 on the primary carrier are no longer used for transmitting the first UCI, and the flexible symbol is implemented as a seventh resource for transmitting the first UCI, as shown by the curved arrow in the lower dashed box in fig. 12 a. The first terminal device sends a first UCI to the network device on the "symbols corresponding to symbol indexes 11 to 13" of the primary carrier. Accordingly, the network device receives the first UCI from the network device on the "symbols corresponding to symbol indexes 11 to 13" of the primary carrier. That is, even if the first resource overlaps with the downlink resource in the time domain, the first terminal device does not perform the "carrier switching" process, and determines the resource for transmitting the first UCI on the original carrier.

In some embodiments, the seventh resource is further used to transmit the second UCI. In this case, step 1 is implemented as: the first terminal device determines to transmit the first UCI and the second UCI to the network device on a seventh resource of the first carrier. Accordingly, the network device determines to receive the first UCI and the second UCI from the network device on the seventh resource of the first carrier.

Wherein, the HARQ-ACK information and the CSI are transmitted in a multiplexing mode, namely, the HARQ-ACK information and the CSI are transmitted in one PUCCH. The seventh resource is a multiplexed resource.

For example, as shown in fig. 12b, the first UCI includes HARQ-ACK information, the first carrier is a primary carrier, and the first resource is a resource corresponding to symbol index 1 to symbol index 3 on the primary carrier, such as a resource location corresponding to "HARQ-ACK" in an upper dashed box in fig. 12 b. The symbol indexes of the flexible symbols on the primary carrier, which are located in the same slot as the first resource, are "symbol index 11 to symbol index 13". The flexible symbols described above are used to transmit the first UCI as indicated by the curved arrow in the lower dashed box in fig. 12 b. Since the flexible symbols described above are also used to transmit a second UCI including CSI, the resource locations corresponding to "CSI" in the upper dashed box in fig. 12 b. In this case, the seventh resource is used as a multiplexing resource for transmitting one PUCCH to transmit HARQ-ACK information and CSI, as shown in the resource position corresponding to "HARQ-ack+csi" in the lower dashed box in fig. 12 b.

Note that, in the case where the seventh resource is also used to transmit the second UCI, the first UCI and the second UCI are transmitted in a multiplexed manner, and in this case, the resources carrying the first UCI and the second UCI (such as the resources shown by the box of "HARQ-ack+csi" in the middle dashed box of fig. 12 c) overlap with the downlink resources. The first terminal device performs S504a, discarding one UCI. Taking fig. 12c as an example, the first terminal device discards the second UCI, and the first terminal device still transmits the first UCI to the network device on the symbols corresponding to the symbol indexes 11 to 13. Accordingly, the network device still receives the first UCI from the network device on the symbol corresponding to the symbol index 11 to the symbol index 13.

In addition, as a further possible implementation manner, as shown in fig. 13, the embodiment of the present application further includes the following manners:

s1301, the first terminal device determines a first resource on the first carrier.

The first carrier may be a primary carrier or a secondary carrier, which is described in S501 and will not be described herein.

in the first aspect, the first resource is used for transmitting the first UCI, and specifically, reference may be made to the description related to S501, which is not repeated herein.

In a second aspect, the first resource overlaps in time domain with a second resource on the first carrier. Wherein the second resource is a resource on the first carrier that transmits a second UCI. The information included in the second UCI may be, for example, but not limited to, at least one of: HARQ-ACK information, SR information, and CSI. The information type in the first UCI may be the same as or different from the information type in the second UCI, which is not limited in the embodiment of the present application.

For example, referring to (a) in fig. 14, the first carrier is a primary carrier. The first UCI includes HARQ-ACK information, and the first resource is a resource corresponding to symbol indexes 5 to 13 on the primary carrier. The second UCI includes CSI, and the second resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The first resource overlaps with the second resource in the time domain.

For example, referring to (a) in fig. 15, the first carrier is a primary carrier. The first UCI includes HARQ-ACK information, and the first resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The second UCI includes CSI, and the second resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The first resource overlaps with the second resource in the time domain.

S1302, the first terminal device determines an eighth resource on the first carrier.

Wherein the eighth resource is a multiplexed resource, the eighth resource being a resource determined based on the first resource and the second resource. The eighth resource is used to transmit the first UCI and the second UCI. The first UCI and the second UCI are transmitted in a multiplexed manner. Eighth may be, but is not limited to, one of the following: the first resource, the second resource, and another resource on the first carrier that is distinct from the first resource and the second resource.

Illustratively, still taking (a) in fig. 14 as an example, the first carrier is the primary carrier. The first UCI includes HARQ-ACK information, and the first resource is a resource corresponding to symbol indexes 5 to 13 on the primary carrier. The second UCI includes CSI, and the second resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The first resource overlaps with the second resource in the time domain. In this case, the eighth resource is a resource corresponding to symbol indexes 3 to 12 on the primary carrier, such as a resource corresponding to a block where "HARQ-ack+csi" is located in (b) of fig. 14. The determination process of the eighth resource may be referred to the description of S507c, which is not repeated here.

Illustratively, still taking (a) in fig. 15 as an example, the first carrier is the primary carrier. The first UCI includes HARQ-ACK information, and the first resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The second UCI includes CSI, and the second resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The first resource overlaps with the second resource in the time domain. In this case, the eighth resource is a resource corresponding to symbol indexes 8 to 13 on the primary carrier, such as a resource corresponding to a block where "HARQ-ack+csi" is located in (b) of fig. 15. The determination process of the eighth resource may be referred to the description of S507c, which is not repeated here.

The eighth resource may or may not overlap with the downlink resource on the first carrier in time domain. And under the condition that the eighth resource is not overlapped with the downlink resource on the first carrier in the time domain, the first terminal equipment sends the first UCI and the second UCI to the network equipment on the eighth resource. Accordingly, the network device receives the first UCI and the second UCI from the first terminal device on the eighth resource.

In the case that the eighth resource overlaps with the downlink resource on the first carrier in the time domain, the first terminal device may, but is not limited to, the following two processing manners:

mode one, as shown in the dashed box of "mode 1" in fig. 13:

s1303, the first terminal device determines a ninth resource on the second carrier.

The description of the second carrier may be referred to in S502, which is not described herein.

The ninth resource is a resource determined based on the eighth resource, for example, the ninth resource is the same as the eighth resource in the number of symbols and in the time domain starting position.

For example, still taking (b) in fig. 14 as an example, the first carrier is a primary carrier, and the eighth resource is a resource corresponding to symbol indexes 3 to 12 on the primary carrier, for example, a resource corresponding to a block where "HARQ-ack+csi" is located in (b) in fig. 14. The second carrier is the secondary carrier 1, and the eighth resource is no longer used to transmit the multiplexed HARQ-ACK information (i.e., the first UCI) and CSI (i.e., the second UCI). The ninth resource is a resource corresponding to symbol indexes 3 to 12 on the secondary carrier 1, and is used to transmit the multiplexed HARQ-ACK information (i.e., the first UCI) and CSI (i.e., the second UCI) as shown by the curved arrow in (c) of fig. 14.

S1304, the first terminal device sends the first UCI and the second UCI to the network device on the ninth resource. Accordingly, the network device receives the first UCI and the second UCI from the first terminal device on the ninth resource.

In this way, in the case where the first resource and the second resource overlap in the time domain on the same carrier, the first terminal device determines to transmit the first UCI and the second UCI in a multiplexed manner on the eighth resource. And under the condition that the eighth resource overlaps with the downlink resource on the first carrier in the time domain, the first terminal equipment transmits the first UCI and the second UCI on other carriers, such as the second carrier, in a multiplexing mode so as to ensure the transmission performance of the UCI.

Mode two, as shown by the dashed box of "mode 2" in fig. 13:

s1305, the first terminal device discards the first UCI on the first resource or discards the second UCI on the second resource. Accordingly, the network device determines whether the first UCI on the first resource is discarded or the second UCI on the second resource is discarded. Wherein the network device also performs S1301, S1302, and S1303.

That is, for the first terminal device, the first terminal device performs S1305a:

s1305a, the first terminal device discards the first UCI on the first resource or discards the second UCI on the second resource.

That is, for the network device, the network device performs S1305b:

s1305b, the network device determines that the first UCI on the first resource is discarded or that the second UCI on the second resource is discarded. The implementation process of S1305b may refer to the related description of S1305a, which is not repeated herein.

Illustratively, still taking (b) of fig. 15 as an example, the first carrier is the primary carrier. The first UCI includes HARQ-ACK information, and the first resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The second UCI includes CSI, and the second resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The first UCI has a higher priority than the second UCI, and the first terminal device determines to discard the second UCI, i.e., CSI.

For UCI that is not discarded, the processing procedure of the first terminal device may be described as follows, for example:

in case that the transmission resources of the "non-discarded UCI" and the downlink resources do not overlap in the time domain, the first terminal device transmits the "non-discarded UCI" to the network device. By way of example, two cases are illustrated:

in case 1, in the case that the first terminal device discards the first UCI on the first resource, the second resource does not overlap with the downlink resource on the first carrier in the time domain, and the first terminal device further sends the second UCI to the network device on the second resource. Accordingly, the network device receives the second UCI from the first terminal device on the second resource, as indicated by the dashed box of "case 1" in fig. 13.

In case 2, in the case that the first terminal device discards the second UCI on the second resource, the first resource and the downlink resource on the first carrier do not overlap in time domain, and the first terminal device further sends the first UCI to the network device on the first resource. Accordingly, the network device receives the first UCI from the first terminal device on the first resource, as indicated by the dashed box of "case 2" in fig. 13.

Illustratively, still taking (b) in fig. 15 as an example, the first terminal device determines to discard the second UCI, i.e., CSI. The first carrier is the primary carrier. The first UCI includes HARQ-ACK information, and the first resource is a resource corresponding to symbol indexes 11 to 13 on the primary carrier. The first terminal device also transmits a first UCI to the network device on the resources corresponding to the symbol indexes 11 to 13 on the primary carrier. Accordingly, the network device receives the first UCI from the first terminal device on the "resources corresponding to the symbol indexes 11 to 13 on the primary carrier", as shown in (c) of fig. 15.

In case that the "transmission resources of UCI which are not discarded" overlap with downlink resources in the time domain, the description is still made by two cases:

in case 1, in the case that the first terminal device discards the first UCI on the first resource, the second resource overlaps with the downlink resource on the first carrier in the time domain, and the first terminal device does not send the first UCI to the network device, or the first terminal device performs S1303 and S1304 in the "mode one" to transmit the first UCI and the second UCI to the network device, so as to improve transmission performance of the UCI.

In case 2, in the case that the first terminal device discards the second UCI on the second resource, the first resource overlaps with the downlink resource on the first carrier in the time domain, and the first terminal device does not send the second UCI to the network device, or the first terminal device performs S1303 and S1304 in the "mode one" to transmit the first UCI and the second UCI to the network device, so as to improve transmission performance of the UCI.

In this way, in the case where the first resource and the second resource overlap in the time domain on the same carrier, the first terminal device determines to transmit the first UCI and the second UCI in a multiplexed manner on the eighth resource. And under the condition that the eighth resource overlaps with the downlink resource on the first carrier in the time domain, the first terminal equipment discards one UCI in the first UCI and the second UCI, so that one UCI is transmitted to the network equipment, and the transmission performance of the UCI is improved.

The embodiment of the application provides an uplink control information transmission method, which is applied to the transmission process of uplink control information. Referring to fig. 16, the uplink control information transmission method includes the steps of:

s1601, the terminal device determines a first resource on a first carrier.

The first carrier may be a primary carrier or a secondary carrier.

The first resource is used for transmitting the first UCI, and the first resource overlaps with the downlink resource on the first carrier in the time domain. The specific description and implementation process of S1601 may refer to the related description of S501, which is not repeated herein.

Illustratively, taking fig. 18 as an example, the first carrier is the primary carrier. The first resource is a resource corresponding to a symbol index 4 to a symbol index 10 on the primary carrier, and the first UCI includes HARQ-ACK information. The downlink resources are resources corresponding to symbol indexes 0 to 10 on the primary carrier. That is, the first resource overlaps with the downlink resource in the time domain.

S1602, the terminal device determines a second resource on a second carrier.

Wherein the first carrier and the second carrier are two different carriers. In the case where the first carrier is the primary carrier, the second carrier may be the secondary carrier. In the case where the first carrier is a secondary carrier, the second carrier may be another secondary carrier. Alternatively, in the case where the first carrier is a secondary carrier, the second carrier may be a primary carrier.

Wherein the second resource is used for transmitting the first UCI. The second resource meets a preset condition, and the preset condition comprises: the second resource and the third resource do not overlap in the time domain.

Wherein the third resource is a resource on the third carrier for transmitting the second UCI. The third carrier is any one of carriers other than the second carrier among carriers used by the terminal device to transmit UCI. The second UCI is any UCI among UCI transmitted by the terminal device except the first UCI. The third carrier and the first carrier may be the same carrier or different carriers, which is not limited in the embodiment of the present application.

For example, still taking fig. 18 as an example, the first UCI includes HARQ-ACK information and the second UCI includes CSI. The second carrier is the secondary carrier 1, and the second resource is the resource corresponding to the symbol index 4 to the symbol index 10 on the secondary carrier 1. The third carrier is the same carrier as the first carrier. The third resource is a resource corresponding to the symbol indexes 11 to 13 on the primary carrier. The second resource and the third resource do not overlap in the time domain.

S1603, the terminal device sends the first UCI to the network device on the second resource and the second UCI to the network device on the third resource. Accordingly, the network device receives the first UCI from the terminal device on the second resource and the second UCI from the terminal device on the third resource. Wherein the network device also performs S1601 and S1602 to learn on which resources to receive the first UCI and the second UCI.

For example, still taking fig. 18 as an example, the second resource is a resource corresponding to symbol index 4 to symbol index 10 on secondary carrier 1, and the first UCI includes HARQ-ACK information. The terminal equipment sends a first UCI to the network equipment on the resources corresponding to symbol index 4 to symbol index 10 on the secondary carrier 1. Accordingly, the network device receives the first UCI from the terminal device on the resources corresponding to the symbol index 4 to the symbol index 10 on the secondary carrier 1.

The third resource is a resource corresponding to the symbol indexes 11 to 13 on the primary carrier, and the second UCI includes CSI. The terminal device sends a second UCI to the network device on a third resource of the "resources corresponding to symbol index 11 to symbol index 13 on the primary carrier". Accordingly, the network device receives the first UCI from the terminal device on the resources corresponding to the symbol indexes 11 to 13 on the primary carrier.

It should be noted that the network device also performs S1601 and S1602 to learn on which resources the first UCI and the second UCI are received.

In some embodiments, S1602 is implemented as S1602a, as shown in "mode 1" of fig. 17:

s1604, the network device sends RRC signaling to the terminal device. Correspondingly, the terminal device receives the RRC signaling from the network device.

Wherein, the RRC signaling indicates PUCCH resources. RRC signaling indicates at least one of the following information: the one or more PUCCH resource sets, the PUCCH resources in each PUCCH resource set, or the PUCCHs in each PUCCH resource set may include a maximum number of bits of UCI. Wherein, the PUCCH resources in each PUCCH resource set may be: the starting symbol position of the PUCCH, the number of symbols of the PUCCH, or the frequency domain position of the PUCCH, etc.

S1602a, the terminal device determines that a resource satisfying a preset condition in the PUCCH resource is a second resource.

The PUCCH resource is a resource indicated by RRC signaling in S1604. That is, the network device performs resource selection according to the preset condition, so as to screen out the resource meeting the preset condition as the second resource, and then indicates to the terminal device through RRC signaling, so as to avoid the phenomenon that the PUCCH resource overlaps with the PUCCH resource on other carriers in time domain after "PUCCH carrier switching".

In other embodiments, S1602 is implemented as S1602b, as shown in "mode 2" of fig. 17:

Wherein the RRC signaling indicates time domain resources of the PUCCH. RRC signaling indicates at least one of the following information: the one or more PUCCH resource sets, the PUCCH resources in each PUCCH resource set, or the PUCCHs in each PUCCH resource set may include a maximum number of bits of UCI. Wherein, the PUCCH resources in each PUCCH resource set may be: the starting symbol position of the PUCCH, the number of symbols of the PUCCH, or the frequency domain position of the PUCCH, etc.

S1605, the network device transmits DCI to the terminal device. Accordingly, the terminal device receives DCI from the network device.

Wherein, the DCI indicates a time domain resource of the PUCCH, and the time domain resource of the PUCCH and the third resource do not overlap in time domain. The time domain resource of the PUCCH indicated by the DCI belongs to the PUCCH resource indicated by the RRC signaling in S1604. That is, RRC signaling is used to configure time domain resources of a plurality of PUCCHs for a terminal device. The DCI is used to indicate for the terminal device which PUCCH time domain resource to use.

S1602b, the terminal equipment determines the time domain resource of the PUCCH and determines the second resource.

That is, the network device performs resource selection in the PUCCH resources indicated by the RRC signaling according to the preset condition, so as to screen out time domain resources that satisfy the preset condition. In this way, the time domain resource of the PUCCH indicated by the DCI and the PUCCH resource transmitting UCI on other carriers do not overlap in time domain. Since the terminal device is the second resource determined based on the time domain resource of the PUCCH indicated by the DCI, the phenomenon that the PUCCH resource on the other carrier overlaps in time domain after the "PUCCH carrier switching" is avoided.

In some embodiments, the second resource is time-domain separated from the third resource by at least N time-domain resource units, where N is a positive integer. That is, there is a time interval between the second resource and the third resource for the terminal device to complete carrier switching, so that the terminal device can switch from the second carrier to the third carrier in time, thereby improving the possibility of successful transmission of the second UCI and improving the transmission performance of the UCI. Wherein the time domain resource unit is determined based on a smaller subcarrier spacing of the second resource and the subcarrier spacing of the third resource. Since the smaller the subcarrier spacing, the larger the time length corresponding to one time domain resource unit, e.g., symbol or slot, to provide sufficient time for the terminal device to switch carriers.

In addition, in case the terminal device needs to transmit UCI on a different carrier, the terminal device first transmits HARQ-ACK information to the network device on the secondary carrier 1 as shown in fig. 19 a. The terminal device then sends the CSI to the network device on the primary carrier. The terminal equipment needs to be switched from the auxiliary carrier 1 to the main carrier, and because the terminal equipment has limited self-capability, especially in an in-band (intra-band) carrier aggregation (carrier aggregation, CA) scene, the terminal equipment cannot be switched to the main carrier in time, so that CSI cannot be sent on the main carrier in time, and the transmission performance of UCI is affected.

The embodiment of the application provides an uplink control information transmission method, which is applied to the transmission process of uplink control information. Referring to fig. 19b, the uplink control information transmission method includes the steps of:

s1901, the terminal device determines a time interval (gap) between the first resource and the second resource.

Wherein the first resource is used for transmitting a first UCI on a first carrier and the second resource is used for transmitting a second UCI on a second carrier.

For example, the first UCI may be information that is determined to be transmitted on the first carrier without undergoing a "PUCCH carrier switching" process. The first UCI may also be information that is determined to be transmitted on the first carrier through a "PUCCH carrier switching" process. That is, before the terminal device determines the time interval between the first resource and the second resource, the terminal device further performs the following steps 1 and 2:

step 1, the terminal equipment determines a third resource on a third carrier.

The third resource is used for transmitting the first UCI, and the third resource overlaps with the downlink resource on the third carrier in the time domain.

For example, referring to fig. 18, the third resource is a resource corresponding to symbol index 4 to symbol index 10 on the primary carrier, and overlaps with the downlink symbol.

Step 2, the terminal equipment determines to transmit a first UCI on a first resource on a first carrier.

For example, referring to fig. 18, the first resource is a resource corresponding to symbol index 4 to symbol index 10 on secondary carrier 1.

For example, the second UCI may be information that is determined to be transmitted on the second carrier without undergoing a "PUCCH carrier switching" process. The second UCI may also be information that is determined to be transmitted on the second carrier through a "PUCCH carrier switching" process. That is, before the terminal device determines the time interval between the first resource and the second resource, the terminal device further performs the following steps 1 and 2:

step 1, the terminal equipment determines a third resource on a third carrier.

The third resource is used for transmitting the second UCI, and the third resource overlaps with the downlink resource on the third carrier in the time domain.

And step 2, the terminal equipment determines to send a second UCI on a second resource on a second carrier.

S1902, when the time interval is smaller than a first preset value, the terminal device discards the first UCI on the first resource or discards the second UCI on the second resource. Accordingly, the time interval is less than the first preset value, and the first UCI on the first resource or the second UCI on the second resource of the network device is discarded. Wherein the network device also performs S1901.

That is, for the terminal device, the terminal device performs S1902a:

s1902a, the time interval is smaller than a first preset value, and the terminal device discards the first UCI on the first resource or discards the second UCI on the second resource.

For the network device, the network device performs S1902b:

s1902b, the time interval is less than a first preset value, the first UCI on the first resource of the network device is discarded or the second UCI on the second resource is discarded. The implementation process of S902b may refer to the related description of S1902a, which is not repeated herein.

That is, S1902 may have the following implementation:

the terminal device sends a second UCI to the network device on the second resource when the time interval is smaller than the first preset value, and discards the first UCI on the first resource. Accordingly, the network device receives the second UCI from the network device on the second resource and determines that the first UCI on the first resource is discarded, as indicated by the "case 1" dashed box in fig. 19 b.

Or the time interval is smaller than the first preset value, the terminal equipment discards the second UCI on the second resource, and the terminal equipment sends the first UCI to the network equipment on the first resource. Accordingly, the network device determines that the second UCI on the second resource is discarded and the network device receives the first UCI on the first resource from the terminal device, as indicated by the "case 2" dashed box in fig. 19 b.

Wherein the first preset value is a value determined based on the own capabilities of the terminal device. The first preset value may be, for example, a duration corresponding to a preset number of time domain resource units. When the subcarrier spacing of the first resource is smaller than the subcarrier spacing of the second resource, the unit of the first preset value is referred to as a "time domain resource unit corresponding to the first resource". For example, the subcarrier spacing corresponding to the first resource is 15kHz, the subcarrier spacing corresponding to the second resource is 30kHz, and the first preset value is based on the symbol corresponding to the subcarrier spacing of 15 kHz.

For example, the terminal device specifically discards which UCI of the first UCI and the second UCI may refer to the relevant description of S504, which is not described herein.

In some embodiments, the terminal device may further perform S1903:

and S1903, the terminal equipment sends a first preset value to the network equipment. Correspondingly, the network device receives a first preset value from the terminal device.

Thus, after the network device performs S1903, the network device may determine which UCI is discarded based on the first preset value. In the case where the network device determines which UCI is discarded, the network device does not detect the "transmission resource of the discarded UCI", or schedules the "transmission resource of the discarded UCI" to other terminal devices.

The embodiment of the application provides an uplink control information transmission method, which is applied to the transmission process of uplink control information. Referring to fig. 20, the uplink control information transmission method includes the steps of:

s2001, the terminal equipment determines the sending times of the PUCCH in the preset time domain resource unit.

The PUCCH at least comprises a PUCCH carrying a first UCI and a PUCCH carrying a second UCI. The first UCI is information transmitted on a first resource of a first carrier, and the second UCI is information transmitted on a second resource of a second carrier. That is, the PUCCH is on a different carrier. The first UCI may be information that is determined to be transmitted on the first carrier without undergoing a "PUCCH carrier switching" process. The first UCI may also be information that is determined to be transmitted on the first carrier through the "PUCCH carrier switching" process, which is described in S501 and S502 in detail and will not be repeated here.

Illustratively, the time domain resource unit may be one of: time slots, sub-time slots, radio frames, or subframes.

For example, PUCCH includes: PUCCH1 to PUCCH5, and the 5 PUCCHs are connected in the number of transmissions. That is, PUCCH1 is the PUCCH first transmitted in the preset time domain resource unit, PUCCH2 is the PUCCH second transmitted in the preset time domain resource unit, and the like. PUCCH1 is on carrier 1, PUCCH2 is on carrier 2, PUCCH3 is on carrier 1, PUCCH4 is on carrier 2, and PUCCH5 is on carrier 1. That is, after the terminal device transmits PUCCH1, it needs to switch to transmit PUCCH2 on carrier 2, and then switch to transmit PUCCH3 on carrier 1, and so on. In this case, the terminal device determines that the number of times of transmission of the PUCCH is 5 times, and the terminal device determines that the number of times of carrier switching is 4 times. Alternatively, PUCCH1, PUCCH2 and PUCCH3 are each on carrier 1, and PUCCH4, PUCCH5 and PUCCH6 are each on carrier 2. That is, after transmitting PUCCH1, PUCCH2, and PUCCH3 on carrier 1, the terminal device needs to switch to transmitting PUCCH4, PUCCH5, and PUCCH6 on carrier 2. In this case, the terminal device determines that the number of times of transmission of the PUCCH is 5 times, and the terminal device determines that the number of times of carrier switching is 1 time.

S2002, the terminal equipment determines to discard the first UCI on the first resource or discard the second UCI on the second resource according to the sending times of the PUCCH. Accordingly, the network device determines that the first UCI on the first resource is discarded or that the second UCI on the second resource is discarded according to the number of times of transmission of the PUCCH.

That is, for the terminal device, the terminal device performs S2002a:

s2002a, the terminal equipment determines to discard the first UCI on the first resource or discard the second UCI on the second resource according to the sending times of the PUCCH.

That is, for the network device, the network device performs S2002b:

s2002b, the network device determines, according to the number of times of PUCCH transmission, whether the first UCI on the first resource is discarded or whether the second UCI on the second resource is discarded. The implementation process of S2001 and S2002b is also performed by the network device, and may be described in S2002a, which is not described herein.

Exemplary, the specific implementation of S2002a is as follows:

as a first possible implementation manner, the terminal device determines the "carrier switching times" on the preset time domain resource unit according to the correspondence between the "transmission times of PUCCH" and the "carrier switching times". For example, the number of transmissions of PUCCH in one slot is 5, in which case the number of times the terminal device switches carriers in the slot is at most 4. For another example, the number of times of PUCCH transmission in one slot is 3, and in this case, the number of times of switching carriers in the slot is at most 2.

And under the condition that the carrier switching times on the preset time domain resource unit reaches a second preset value, the terminal equipment determines to discard the first UCI on the first resource or discard the second UCI on the second resource. Otherwise, if the "carrier switching times" on the preset time domain resource unit does not reach the second preset value, the terminal device sends the first UCI to the network device on the first resource, and sends the second UCI to the network device on the second resource.

The "the terminal device discards the first UCI on the first resource" may mean that the terminal device sends the second UCI to the network device on the second resource, and discards the first UCI on the first resource. Accordingly, the network device receives the second UCI from the network device on the second resource and determines that the first UCI on the first resource is discarded, as indicated by the "case 1" dashed box in fig. 20.

The "the terminal device discards the second UCI on the second resource" may mean that the terminal device discards the second UCI on the second resource and the terminal device sends the first UCI to the network device on the first resource. Accordingly, the network device determines that the second UCI on the second resource is discarded and the network device receives the first UCI on the first resource from the terminal device, as indicated by the "case 2" dashed box in fig. 20.

The second preset value is a value determined based on the self-capability of the terminal equipment, and the value needs to be reported to the network equipment. The self-capabilities of the terminal device may be information determined based on at least one of: the data processing speed of the terminal equipment, the data size which can be processed by the terminal equipment at the same time and the processing resource size of the terminal equipment.

In some embodiments, the terminal device may further perform S2003:

and S2003, the terminal equipment sends a second preset value to the network equipment. Correspondingly, the network device receives a second preset value from the terminal device.

Thus, after the network device performs S2003, the network device may determine which UCI is discarded based on the second preset value. In the case where the network device determines which UCI is discarded, the network device does not detect the "transmission resource of the discarded UCI", or configures the "transmission resource of the discarded UCI" to other terminal devices.

The scheme provided by the embodiment of the application is mainly introduced from the interaction angle among the network elements. Correspondingly, the embodiment of the application also provides a communication device, which can be the network element in the embodiment of the method, or a device containing the network element, or a component applicable to the network element. It will be appreciated that the communications device, in order to achieve the above-described functions, includes corresponding hardware structures and/or software modules that perform the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application provides a chip, which comprises a logic circuit and an input-output interface. The input/output interface is used for communicating with a module outside the chip, and the logic circuit is used for executing other operations except the transceiving operation on the terminal equipment in the embodiment of the method.

For example, taking a chip implemented as a terminal device in the above method embodiment, as an example, the function of the first terminal device in fig. 5, the input/output interface may be used to perform a step of sending the first UCI or the second UCI on the side of the first terminal device, and/or the input/output interface may be further used to perform other transceiving steps on the side of the first terminal device in the embodiment of the present application. The logic circuit may be configured to perform S501, S502, S503, and S504a on the first terminal device side in the embodiment of the present application, and/or the logic circuit may be further configured to perform other processing steps on the first terminal device side in the embodiment of the present application.

For another example, taking a chip implemented as the first terminal device in the above embodiment of the method, as an example, the function of the first terminal device in fig. 13 may be used to execute S1304 on the first terminal device side, and/or the input/output interface may be further used to execute other transceiving steps on the first terminal device side in the embodiment of the present application. The logic circuit may be configured to perform S1301, S1302, S1303, S1305a in the first terminal device side, and/or the logic circuit may be further configured to perform other processing steps in the first terminal device side in the embodiment of the present application.

As another example, taking the chip implementation as the first terminal device in the above method embodiment, as an example, the function of the first terminal device in fig. 16 may be used to execute S1603 on the first terminal device side, and/or the input/output interface may be further used to execute other transceiving steps on the first terminal device side in the embodiment of the present application. The logic may be configured to perform S1601, S1602 in the first terminal device side, and/or the logic may be configured to perform other processing steps in the first terminal device side in the embodiment of the present application.

As another example, taking the chip implementation as an example of the function of the terminal device in the above embodiment of the method, as shown in fig. 19b, the input/output interface may be used to perform a step of sending the first UCI or the second UCI on the terminal device side, and/or the input/output interface may be further used to perform other transceiving steps on the terminal device side in the embodiment of the present application. The logic circuit may be configured to perform S1901 and S1902a on the terminal device side in the embodiment of the present application, and/or the logic circuit may be further configured to perform other processing steps on the terminal device side in the embodiment of the present application.

For another example, taking the chip implemented as the function of the terminal device in the above embodiment of the method, such as fig. 20, the input/output interface may be used to perform the step of sending the first UCI or the second UCI on the terminal device side, and/or the input/output interface may be further used to perform other transceiving steps on the terminal device side in the embodiment of the present application. The logic may be used to perform S2001, S2002a in the terminal device side and/or the logic may also be used to perform other processing steps in the terminal device side in embodiments of the present application.

For example, taking the chip implemented as the function of the network device in the above embodiment of the method, for example, fig. 5, the input/output interface performs a step of receiving the first UCI or the second UCI on the network device side, and/or the input/output interface is further used to perform other transceiving steps on the network device side in the embodiment of the present application. The logic circuit may be configured to execute S501, S502, S503, and S504b on the network device side in the embodiment of the present application, and/or the logic circuit may be further configured to execute other processing steps on the first network device side in the embodiment of the present application.

For another example, taking a chip implemented as the network device in the above embodiment of the method, as an example, the function of the network device in fig. 13 may be used to execute S1304 on the network device side, and/or the input/output interface may be further used to execute other transceiving steps on the network device side in the embodiment of the present application. The logic circuit may be configured to perform S1301, S1302, S1303, S1305b in the network device side, and/or the logic circuit may be further configured to perform other processing steps in the network device side in the embodiment of the present application.

As another example, taking the chip implemented as the network device in the above embodiment of the method, as an example, the function of the network device in fig. 16 may be used to execute S1603 on the network device side, and/or the input/output interface may be further used to execute other transceiving steps on the network device side in the embodiment of the present application. The logic may be configured to perform S1601, S1602 in the network device side, and/or the logic may be configured to perform other processing steps in the network device side in an embodiment of the present application.

As another example, taking the chip implemented as the function of the network device in the above embodiment of the method, for example, fig. 19b, the input/output interface may be used to perform a step of sending the first UCI or the second UCI on the network device side, and/or the input/output interface may be further used to perform other transceiving steps on the network device side in the embodiment of the present application. The logic circuit may be configured to perform S1901 and S1902b on the network device side in the embodiment of the present application, and/or the logic circuit may be further configured to perform other processing steps on the network device side in the embodiment of the present application.

As another example, taking the chip implemented as the function of the network device in the foregoing method embodiment, such as fig. 21, the input/output interface may be used to perform the step of sending the first UCI or the second UCI on the network device side, and/or the input/output interface may be further used to perform other transceiving steps on the network device side in the embodiment of the present application. The logic may be configured to perform S2001, S2002b in the network device side, and/or the logic may be configured to perform other processing steps in the network device side in embodiments of the present application.

When the processing unit 2102 includes a processor, the transmitting unit 2103 and the receiving unit 2104 include a communication interface, and the storage unit 2101 includes a memory, the communication apparatus 2200 according to an embodiment of the present application may be as shown in fig. 22.

Referring to fig. 22, the communication apparatus 2200 includes: a processor 2202, a transceiver 2203, and a memory 2201.

The transceiver 2203 may be a separately configured transmitter that may be used to transmit information to other devices, or a separately configured receiver that may be used to receive information from other devices. The transceiver may also be a component that integrates the functions of transmitting and receiving information, and embodiments of the present application are not limited to the specific implementation of the transceiver.

Optionally, communication device 2200 may also include a bus 2204. Wherein the transceiver 2203, the processor 2202, and the memory 2201 may be interconnected by a bus 2204; bus 2204 may include a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, among others. The bus 2204 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 22, but not only one bus or one type of bus.

Those of ordinary skill in the art will appreciate that: in the above embodiments, it may be implemented in whole or in part 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, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may include a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may include any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the available medium. The usable medium may include a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, or may be in electrical or other forms.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network devices. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each functional unit may exist independently, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.

From the above description of embodiments, it will be clear to a person skilled in the art that the present application may be implemented by means of software plus necessary general purpose hardware, but of course also by means of hardware, the former being in many cases a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a readable storage medium, such as a floppy disk, a hard disk, or an optical disk of a computer, etc., including several instructions for causing a computer device (which may include a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments of the present application.

The foregoing is merely illustrative of specific embodiments of the present application, and the present application is not limited to these embodiments, but is intended to cover modifications and alternatives within the technical scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

An uplink control information transmission method is characterized by comprising the following steps:

the method comprises the steps that a terminal device determines first resources on a first carrier, wherein the first resources are used for transmitting first uplink control information UCI, and the first resources are overlapped with downlink resources on the first carrier in a time domain;

The terminal equipment determines a second resource on a second carrier, wherein the second resource is used for transmitting the first UCI;

the terminal equipment determines that the second resource and a third resource overlap in a time domain, wherein the third resource is used for transmitting a second UCI on a third carrier;

the terminal device discards the first UCI on the second resource or discards the second UCI on the third resource.
The method of claim 1, wherein the terminal device discarding the first UCI on the second resource comprises:

when the first UCI meets a preset condition, the terminal device discards the first UCI on the second resource, wherein the preset condition includes at least one of the following:

the priority of the first UCI is lower than the priority of the second UCI;

the second resource transmitting the first UCI is later than the third resource.
The method of claim 2, wherein the step of determining the position of the substrate comprises,

the first UCI includes at least one of a scheduling request SR and channel state information CSI, and the second UCI includes hybrid automatic repeat request acknowledgement HARQ-ACK information;

alternatively, the first UCI includes CSI and the second UCI includes SR;

Alternatively, the first UCI includes CSI of a first priority, the second UCI includes CSI of a second priority, and the first priority is lower than the second priority;

alternatively, the first UCI includes SR of the first priority, and the second UCI includes SR of the second priority;

alternatively, the first UCI includes HARQ-ACK information of the first priority, and the second UCI includes HARQ-ACK information of the second priority.
The method of claim 1, wherein the terminal device discarding the second UCI on the third resource comprises:

when the second UCI meets a preset condition, the terminal device discards the second UCI on the third resource, wherein the preset condition includes at least one of the following:

the priority of the second UCI is lower than the priority of the first UCI;

the third resource transmitting the second UCI is later than the second resource.
The method of claim 4, wherein the second UCI includes at least one of SR and CSI, and the first UCI includes HARQ-ACK information;

alternatively, the second UCI includes CSI and the first UCI includes SR;

Alternatively, the second UCI includes CSI of a first priority, the first UCI includes CSI of a second priority, and the first priority is lower than the second priority;

alternatively, the second UCI includes an SR of the first priority, and the first UCI includes an SR of the second priority;

or, the second UCI includes the HARQ-ACK information of the first priority, and the first UCI includes the HARQ-ACK information of the second priority.
The method according to any one of claims 1 to 5, further comprising:

the terminal device receives first indication information from a network device, wherein the first indication information indicates the terminal device to discard the first UCI on the second resource or discard the second UCI on the third resource.
The method of any of claims 1-6, wherein when the terminal device discards the first UCI on the second resource, the method further comprises:

the terminal device determines to transmit the first UCI on a target resource of the third carrier, where the target resource of the third carrier is determined according to the second resource.
The method of any of claims 1-6, wherein when the terminal device discards the second UCI on the third resource, the method further comprises:

the terminal device determines to transmit the second UCI on a target resource of the second carrier, where the target resource of the second carrier is determined according to the third resource.
The method according to claim 7 or 8, characterized in that the method further comprises:

the terminal device receives second indication information from the network device, wherein the second indication information indicates the terminal device to send the first UCI and the second UCI on the same carrier.
The method of any of claims 1-6, wherein when the terminal device discards the first UCI on the second resource, the method further comprises:

and the terminal equipment determines to transmit the first UCI on a Physical Uplink Shared Channel (PUSCH) resource of the second carrier, wherein the PUSCH resource of the second carrier and the second resource overlap in a time domain.
The method of any of claims 1-6, wherein when the terminal device discards the second UCI on the third resource, the method further comprises:

The terminal device determines to transmit the second UCI on a PUSCH resource of the third carrier, where the PUSCH resource of the third carrier overlaps with the third resource in a time domain.
The method according to any one of claims 1 to 11, wherein,

the third carrier is the same carrier as the first carrier, or,

the third carrier and the second carrier are the same carrier.
An uplink control information transmission method is characterized by comprising the following steps:

the method comprises the steps that network equipment determines first resources on a first carrier, wherein the first resources are used for transmitting first uplink control information UCI, and the first resources are overlapped with downlink resources on the first carrier in a time domain;

the network device determines a second resource on a second carrier, the second resource being used for transmitting the first UCI;

the network device determines that the second resource overlaps with a third resource in a time domain, wherein the third resource is used for transmitting a second UCI on a third carrier;

the network device determines whether the first UCI on the second resource is discarded or the second UCI on the third resource is discarded.
The method of claim 13, wherein the network device determining that the first UCI on the second resource is discarded comprises:

When the first UCI meets a preset condition, discarding the first UCI on the second resource of the network device, wherein the preset condition includes at least one of:

the priority of the first UCI is lower than the priority of the second UCI;

the second resource transmitting the first UCI is later than the third resource.
The method of claim 14, wherein the step of providing the first information comprises,

the first UCI includes at least one of a scheduling request SR and channel state information CSI, and the second UCI includes hybrid automatic repeat request acknowledgement HARQ-ACK information;

alternatively, the first UCI includes CSI and the second UCI includes SR;

alternatively, the first UCI includes CSI of a first priority, the second UCI includes CSI of a second priority, and the first priority is lower than the second priority;

alternatively, the first UCI includes SR of the first priority, and the second UCI includes SR of the second priority;

alternatively, the first UCI includes HARQ-ACK information of the first priority, and the second UCI includes HARQ-ACK information of the second priority.
The method of claim 13, wherein the network device determining that the second UCI on the third resource is discarded comprises:

When the second UCI meets a preset condition, the network device determines that the second UCI on the third resource is discarded, wherein the preset condition includes at least one of:

the priority of the second UCI is lower than the priority of the first UCI;

the third resource transmitting the second UCI is later than the second resource.
The method of claim 16, wherein the second UCI comprises at least one of SR and CSI, and the first UCI comprises HARQ-ACK information;

alternatively, the second UCI includes CSI and the first UCI includes SR;

alternatively, the second UCI includes CSI of a first priority, the first UCI includes CSI of a second priority, and the first priority is lower than the second priority;

alternatively, the second UCI includes an SR of the first priority, and the first UCI includes an SR of the second priority;

or, the second UCI includes the HARQ-ACK information of the first priority, and the first UCI includes the HARQ-ACK information of the second priority.
The method according to any one of claims 13 to 17, further comprising:

the network device sends first indication information to a terminal device, wherein the first indication information indicates the terminal device to discard the first UCI on the second resource or discard the second UCI on the third resource.
The method of any of claims 13-18, wherein when the network device determines that the first UCI on the second resource is discarded, the method further comprises:

the network device determines to receive the first UCI from a terminal device on a target resource of the third carrier, wherein the target resource of the third carrier is determined from the second resource.
The method of any of claims 13-18, wherein when the network device determines that the second UCI on the third resource is discarded, the method further comprises:

the network device determines to receive the second UCI from a terminal device on a target resource of the second carrier, wherein the target resource of the second carrier is determined according to the third resource.
The method according to claim 19 or 20, characterized in that the method further comprises:

the network device sends second indication information to the terminal device, wherein the second indication information indicates the terminal device to send the first UCI and the second UCI on the same carrier.
The method of any of claims 13-18, wherein when the network device determines that the first UCI on the second resource is discarded, the method further comprises:

The network device determines to receive the first UCI from the terminal device on a physical uplink shared channel PUSCH resource of the second carrier, where the PUSCH resource of the second carrier overlaps with the second resource in a time domain.
The method of any of claims 13-18, wherein when the network device determines that the second UCI on the third resource is discarded, the method further comprises:

the network device determines to receive the second UCI from the terminal device on a PUSCH resource of the third carrier, where the PUSCH resource of the third carrier overlaps with the third resource in a time domain.
The method according to any one of claims 13 to 23, wherein,

the third carrier is the same carrier as the first carrier, or,

the third carrier and the second carrier are the same carrier.
An uplink control information transmission method is characterized by comprising the following steps:

the method comprises the steps that a terminal device determines first resources on a first carrier, wherein the first resources are used for transmitting first uplink control information UCI, and the first resources are overlapped with downlink resources on the first carrier in a time domain;

The terminal device determines a second resource on a second carrier, where the second resource is used for transmitting the first UCI, and the second resource meets a preset condition, and the preset condition includes: the second resource and a third resource are not overlapped in the time domain, and the third resource is a resource used for transmitting a second UCI on a third carrier;

the terminal device sends the first UCI to a network device on the second resource and the second UCI to the network device on the third resource.
The method of claim 25, wherein the method further comprises:

the terminal equipment receives Downlink Control Information (DCI) from the network equipment, wherein the DCI indicates time domain resources of a Physical Uplink Control Channel (PUCCH), and the time domain resources and the third resources are not overlapped in time domain;

the terminal device determining a second resource on a second carrier, including:

and the terminal equipment determines the second resource according to the time domain resource indicated by the DCI.
The method of claim 25, wherein the method further comprises:

the terminal equipment receives Radio Resource Control (RRC) signaling from the network equipment, wherein the RRC signaling indicates Physical Uplink Control Channel (PUCCH) resources;

The terminal device determining a second resource on a second carrier, including:

and the terminal equipment determines the resource meeting the preset condition in the PUCCH resource as the second resource.
An uplink control information transmission method is characterized by comprising the following steps:

the method comprises the steps that network equipment determines first resources on a first carrier, wherein the first resources are used for transmitting first uplink control information UCI, and the first resources are overlapped with downlink resources on the first carrier in a time domain;

the network device determines a second resource on a second carrier, where the second resource is used for transmitting the first UCI, and the second resource meets a preset condition, and the preset condition includes: the second resource and a third resource are not overlapped in the time domain, and the third resource is a resource used for transmitting a second UCI on a third carrier;

the network device receives the first UCI from a terminal device on the second resource and the second UCI from the terminal device on the third resource.
The method of claim 28, wherein the method further comprises:

the network device sends Downlink Control Information (DCI) to the terminal device, wherein the DCI indicates time domain resources of a Physical Uplink Control Channel (PUCCH), the time domain resources and the third resources are not overlapped in time domain, and the DCI is used for the terminal device to determine the second resources.
The method of claim 28, wherein the method further comprises:

and the network equipment sends Radio Resource Control (RRC) signaling to the terminal equipment, wherein the RRC signaling indicates Physical Uplink Control Channel (PUCCH) resources, and the RRC signaling is used for the terminal equipment to determine the second resources.
A communication device, comprising: a processor and a memory, the processor and the memory being coupled, the memory storing program instructions that, when executed by the processor, perform the uplink control information transmission method of any one of claims 1 to 12 or the uplink control information transmission method of any one of claims 25 to 27.
A chip comprising logic circuitry and an input-output interface, the input-output interface for communicating with a module external to the chip, the logic circuitry for running a computer program or instructions to control a terminal device to perform the method of uplink control information transmission of any one of claims 1 to 12, or the method of uplink control information transmission of any one of claims 25 to 27.
A communication device, comprising: a processor and a memory, the processor and the memory being coupled, the memory storing program instructions that, when executed by the processor, perform the uplink control information transmission method of any one of claims 13 to 24 or the uplink control information transmission method of any one of claims 28 to 30.
A chip comprising logic circuitry and an input-output interface for communicating with a module external to the chip, the logic circuitry for running a computer program or instructions to control a network device to perform the method of uplink control information transmission of any one of claims 13 to 24 or the method of uplink control information transmission of any one of claims 28 to 30.
A computer-readable storage medium storing a program that, when called by a processor, performs the uplink control information transmission method of any one of claims 1 to 12, or performs the uplink control information transmission method of any one of claims 13 to 24, or performs the uplink control information transmission method of any one of claims 25 to 27, or performs the uplink control information transmission method of any one of claims 28 to 30.
A communication apparatus comprising means or modules for performing the uplink control information transmission method according to any one of claims 1 to 12 or any one of claims 25 to 27.
A communication apparatus comprising means or modules for performing the uplink control information transmission method of any one of claims 13 to 24 or any one of claims 28 to 30.