Uplink tci state determining method and apparatus, terminal, and network-side device

An uplink TCI state determining method, comprising:

• indicating, by a network-side device, common beam information to a terminal, wherein the common beam information comprises N first transmission configuration indicator (TCI) states, the first TCI state being a joint TCI state or a separate uplink (UL) TCI state, and N being an integer greater than or equal to 1;
• and
• determining, by the network-side device, a target TCI state of a target uplink channel based on target information, wherein the target information comprises at least one of the following:
• the number of first TCI states;
• arrangement order or arrangement positions of the first TCI states;
• correspondence between the first TCI states and first identifier information;
• type of the target uplink channel;
• transmission mode of the target uplink channel;
• time-domain behavior of the target uplink channel or time-domain behavior of information carried on the target uplink channel;
• the number of first identifier information corresponding to the target uplink channel;
• or
• value of the first identifier information corresponding to the target uplink channel;
• wherein
• the first identifier information comprises at least one of the following:
• control resource set (CORESET) index information;
• CORESET pool index (CORESETPoolIndex);
• transmission reception point (TRP) identifier ID information;
• channel group identifier information;
• CORESET group index information;
• or
• physical uplink control channel (PUCCH) resource group identifier information.

A terminal, comprising a processor and a memory, wherein the memory stores a program or instructions capable of running on the processor, wherein the program or instructions, when executed by the processor, cause the terminal to perform:

• obtaining common beam information indicated by a network-side device, wherein the common beam information comprises N first transmission configuration indicator TCI states, the first TCI state being a joint TCI state or a separate uplink (UL) TCI state, and N being an integer greater than or equal to 1;
• and
• determining a target TCI state of a target uplink channel based on target information, wherein the target information comprises at least one of the following:
• the number of first TCI states;
• arrangement order or arrangement positions of the first TCI states;
• correspondence between the first TCI states and first identifier information;
• type of the target uplink channel;
• transmission mode of the target uplink channel;
• time-domain behavior of the target uplink channel or time-domain behavior of information carried on the target uplink channel;
• the number of first identifier information corresponding to the target uplink channel;
• or
• value of the first identifier information corresponding to the target uplink channel;
• wherein
• the first identifier information comprises at least one of the following:
• control resource set (CORESET) index information;
• CORESET pool index (CORESETPoolIndex);
• transmission reception point (TRP) identifier (ID) information;
• channel group identifier information;
• CORESET group index information;
• or
• physical uplink control channel (PUCCH) resource group identifier information.