Methods and apparatus of resource mapping and signaling indication for joint coreset for enhanced PDCCH transmission with multiple TRPs

An apparatus for wireless communication, the apparatus comprising:

• a processor;
• and
• a memory coupled to the processor, the memory comprising instructions executable by the processor to cause the apparatus to:
• receive a configuration signaling for a joint control resource set (CORESET), wherein the joint CORESET is configured based on a plurality of CORESETs for a physical downlink control channel (PDCCH) transmission, and the joint CORESET comprises a plurality of resources from the CORESETs mapped therein based on a resource mapping scheme;
• derive a joint CORESET configuration for the joint CORESET from the configuration signaling;
• and
• receive the PDCCH that is transmitted on the resources of the joint CORESET according to the joint CORESET configuration, wherein the resource mapping scheme comprises:
• concatenating resources from the CORESETs into the joint CORESET based on a resource element group (REG), REG bundling, control channel element (CCE), or CCE set, according to an order of the CORESETs, and wherein resources from the CORESETs are concatenated based on an ID of the CCE with an offset value between a first one of the CORESETs and a second one of the CORESETs.

An apparatus for wireless communication, the apparatus comprising:

• a processor;
• and
• a memory coupled to the processor, the memory comprising instructions executable by the processor to cause the apparatus to:
• receive a configuration signaling for a joint control resource set (CORESET), wherein the joint CORESET is configured based on a plurality of CORESETs for a physical downlink control channel (PDCCH) transmission, and the joint CORESET comprises a plurality of resources from the CORESETs mapped therein based on a resource mapping scheme;
• derive a joint CORESET configuration for the joint CORESET from the configuration signaling;
• and
• receive the PDCCH that is transmitted on the resources of the joint CORESET according to the joint CORESET configuration, wherein the resource mapping scheme comprises:
• independently mapping resources into each CORESET in the joint CORESET, and wherein a TCI state and/or transmission occasion of the CORESETs are implicitly determined based on a subset of a search space set;
• the search space set is associated with the joint CORESET;
• and the subset of the search space set is associated with one of the CORESETs.

An apparatus for wireless communication, the apparatus comprising:

• a processor;
• and
• a memory coupled to the processor, the memory comprising instructions executable by the processor to cause the apparatus to:
• receive a configuration signaling for a joint control resource set (CORESET), wherein the joint CORESET is configured based on a plurality of CORESETs for a physical downlink control channel (PDCCH) transmission, and the joint CORESET comprises a plurality of resources from the CORESETs mapped therein based on a resource mapping scheme;
• derive a joint CORESET configuration for the joint CORESET from the configuration signaling;
• and
• receive the PDCCH that is transmitted on the resources of the joint CORESET according to the joint CORESET configuration, wherein the resource mapping scheme comprises:
• independently mapping resources into each CORESET in the joint CORESET, and wherein a TCI state and/or transmission occasion of the CORESETs are implicitly determined based on the joint CORESET configuration, and wherein the TCI state and/or transmission occasion are implicitly determined by deriving a CORESET switching pattern with a transmission order from an order of the CORESETs in the joint CORESET configuration, and transmission times for each CORESET from a repetition number in the joint CORESET configuration.