Method for determining full-power transmission codebook subset and device

A method, comprising:

• determining a first full-power transmission codebook subset corresponding to a frequency band supported by a terminal device before antenna port switching of the terminal device;
• and
• determining, according to a specified rule and a plurality of full-power transmission codebook subsets corresponding to a plurality of source frequency bands, a second full-power transmission codebook subset corresponding to a target frequency band after antenna port switching of the terminal device,
• wherein the plurality of source frequency bands are frequency bands in which a plurality of target antenna ports are located before antenna port switching, the plurality of target antenna ports are antenna ports in the target frequency band after antenna port switching, and the specified rule indicates a correspondence between the first full-power transmission codebook subsets corresponding to the plurality of source frequency bands before antenna port switching and the second full-power transmission codebook subset corresponding to the target frequency band after antenna port switching.

A device, comprising:

• a transceiver;
• a non-transitory memory storage comprising instructions;
• and
• one or more processors in communication with the transceiver and the non-transitory memory storage, wherein the one or more processors execute the instructions to:
• determine a first full-power transmission codebook subset corresponding to a frequency band supported by a terminal device before antenna port switching of the terminal device;
• and
• determine, according to a specified rule and a plurality of full-power transmission codebook subsets corresponding to a plurality of source frequency bands, a second full-power transmission codebook subset corresponding to a target frequency band after antenna port switching of the terminal device,
• wherein the plurality of source frequency bands are frequency bands in which a plurality of target antenna ports are located before antenna port switching, the plurality of target antenna ports are antenna ports in the target frequency band after antenna port switching, and the specified rule indicates a correspondence between the first full-power transmission codebook subsets corresponding to the plurality of source frequency bands before antenna port switching and the second full-power transmission codebook subset corresponding to the target frequency band after antenna port switching.

A chip, wherein the chip is coupled to a non-transitory memory, and the chip reads a computer program stored in the non-transitory memory, and execute the computer program to:

• determine a first full-power transmission codebook subset corresponding to a frequency band supported by a terminal device before antenna port switching of the terminal device;
• and
• determine, according to a specified rule and a plurality of full-power transmission codebook subsets corresponding to a plurality of source frequency bands, a second full-power transmission codebook subset corresponding to a target frequency band after antenna port switching of the terminal device,
• wherein the plurality of source frequency bands are frequency bands in which a plurality of target antenna ports are located before antenna port switching, the plurality of target antenna ports are antenna ports in the target frequency band after antenna port switching, and the specified rule indicates a correspondence between the first full-power transmission codebook subsets corresponding to the plurality of source frequency bands before antenna port switching and the second full-power transmission codebook subset corresponding to the target frequency band after antenna port switching.