User equipment and method for unified TCI state operation

By providing a unified TCI state operation method and device in a cellular wireless communication network, the problem of TCI state management and configuration of multiple channels is solved, efficient allocation and utilization of channel states is realized, and the performance and efficiency of the communication system are improved.

CN119678422APending Publication Date: 2025-03-21SHARP KK
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Patent Information

Application Number
CN202380059097.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-11
Filing Date
2023-08-11
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

In cellular wireless communication networks, it is difficult for the prior art to effectively manage and configure the TCI state of multiple channels, especially when one channel is scheduled based on DCI received from another channel.

Method used

By providing a method and apparatus for unified TCI state operations performed by a user equipment (UE). The method includes receiving an RRC configuration for configuring the first and second sets of TCI states, and receiving an indication for associating these TCI states with a corresponding channel. The specific steps include receiving an RRC configuration for configuring the TCI state, receiving an indication for associating the TCI state with the channel, and sending or receiving a second channel after applying at least one third TCI state.

Benefits of technology

Pipeline allocation and utilization of multiple channels TCI states is realized, and the clarity and flexibility of beam information scheduling between BS and UE is improved, thereby improving the performance and overall efficiency of the communication system.

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Abstract

A method for unified transmit configuration indication (TCI) state operation performed by a user equipment (UE) is provided. The method comprises: receiving a first radio resource control (RRC) configuration for configuring a first set of TCI states and a second set of TCI states; receiving a first indication for associating the first set of TCI states with a first channel, the first channel comprising a physical downlink control channel (PDCCH); receiving a second indication for associating the second set of TCI states with a second channel, the second channel being scheduled by a first downlink control information (DCI) received on the first channel; receiving a third indication indicating at least one third TCI state to be applied on the second channel; and transmitting or receiving the second channel after applying the at least one third TCI state.
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