Selecting Unified Transmission States for Multipoint Operation Using Identified Lists

An apparatus, comprising:

• a processor configured to, when executing instructions stored in a memory, perform operations comprising:
• receiving, from a cellular network, a first message specific to a first pair of lists indicating a first subset of transmission control indication (TCI) states;
• determining, based on the first message, a first association between respective TCI codepoints and respective TCI states according to the first pair of lists;
• receiving, from the cellular network, a second message indicating a first TCI codepoint;
• selecting, based on the first TCI codepoint and the first association between respective TCI codepoints and respective TCI states:
• a first TCI state from a first list of the first pair of lists;
• and
• a second TCI state from a second list of the first pair of lists;
• and
• communicating with the cellular network via a plurality of transmission and reception points (TRPs) using the first TCI state and the second TCI state.

A method, comprising:

• at a cellular network:
• transmitting, to a user equipment (UE), a first message specific to a first pair of lists indicating a first subset of transmission control indication (TCI) states;
• determining a first association between respective TCI codepoints and respective TCI states according to the first pair of lists;
• transmitting, to the UE, a second message indicating a first TCI codepoint;
• selecting, based on the first TCI codepoint and the first association between respective TCI codepoints and respective TCI states:
• a first TCI state from a first list of the first pair of lists;
• and
• a second TCI state from a second list of the first pair of lists;
• and
• communicate with the UE via a plurality of transmission and reception points (TRPs) using the first TCI state and the second TCI state.