PUCCH resource indication method, communication device and storage medium

A physical uplink control channel (PUCCH) resource indication method, performed by a base station, and comprising:

• indicating a target PUCCH resource that can support joint transmission to multiple transmission reception points (TRPs) of the base station for user equipment (UE);
• and
• receiving uplink control information (UCI) transmitted by the UE, wherein the UCI is repeatedly transmitted to the multiple TRPs of the base station in one time slot or among multiple time slots by using the target PUCCH resource;
• wherein indicating the target PUCCH resource that can support the joint transmission to the multiple TRPs of the base station for the UE comprises:
• indicating a target PUCCH resource set that can support the joint transmission to the multiple TRPs of the base station for the UE;
• and
• transmitting downlink control information (DCI) signaling to the UE, wherein the DCI signaling is used for indicating the UE to determine the target PUCCH resource from the target PUCCH resource set;
• and
• wherein indicating the target PUCCH resource that can support the joint transmission to the multiple TRPs of the base station for the UE comprises:
• indicating the target PUCCH resource set and a target PUCCH resource combination list that can support the joint transmission to the multiple TRPs of the base station for the UE;
• and
• transmitting the DCI signaling to the UE, to cause the UE to:
• determine codepoints for indicating PUCCH resource information according to the DCI signaling, obtain resource identification information corresponding to the codepoints from the target PUCCH resource combination list, and obtain the target PUCCH resource matched with the resource identification information from the target PUCCH resource set.

A communication device, comprising:

• at least one processor;
• and
• a memory communicatively connected to the at least one processor, wherein
• instructions that can be executed by the at least one processor are stored in the memory, and the instructions, when executed by the at least one processor, cause the at least one processor to:
• obtain a target physical uplink control channel (PUCCH) resource that is indicated for user equipment (UE) and can support joint transmission to multiple transmission reception points (TRPs) of a base station;
• and
• repeatedly transmit uplink control information (UCI) to the multiple TRPs of the base station in one time slot or among multiple time slots by using the target PUCCH resource;
• wherein the instructions, when executed by the at least one processor, further cause the at least one processor to:
• when obtaining the target PUCCH resource that is indicated for the UE and can support the joint transmission to the multiple TRPs of the base station, perform:
• obtaining a target PUCCH resource set that is indicated for the UE and can support the joint transmission to the multiple TRPs of the base station;
• and
• determining the target PUCCH resource from the target PUCCH resource set according to received downlink control information (DCI) signaling;
• and
• wherein the instructions, when executed by the at least one processor, further cause the at least one processor to:
• when obtaining the target PUCCH resource that is indicated for the UE and can support the joint transmission to the multiple TRPs of the base station, perform:
• obtaining the target PUCCH resource set and a target PUCCH resource combination list that are indicated for the UE and can support the joint transmission to the multiple TRPs of the base station;
• determining codepoints for indicating PUCCH resource information according to the received DCI signaling;
• obtaining, from the target PUCCH resource combination list, resource identification information corresponding to the codepoints;
• and
• obtaining, from the target PUCCH resource set, the target PUCCH resource matched with the resource identification information.