Terminals, wireless communication methods, base stations and systems

Claims

1. A receiving unit that receives configuration information including information about the type of Unified Transmission Configuration Indication (TCI) state, and downlink control information indicating one or more Unified TCI states, When a TCI code point is received that has one designated unified TCI state, the type of the unified TCI state is set to separate, and either the downlink (DL) TCI state or the uplink (UL) TCI state is mapped by the downlink control information, the unified TCI state of the designated one of the DL TCI state and the UL TCI state is updated, and the unified TCI state of the other is maintained. A terminal having multiple designated unified TCI states, and a control unit that, upon receiving a TCI code point on which some of the multiple unified TCI states are mapped by the downlink control information, updates some of the designated unified TCI states among the multiple unified TCI states and maintains the remaining unified TCI states.

2. The terminal according to claim 1, wherein the control unit updates a portion of the specified unified TCI states from the plurality of unified TCI states and maintains the remaining unified TCI states, in both cases where the type of unified TCI state is set to separate and where it is set to joint.

3. The steps include receiving configuration information including information about the type of Unified Transmission Configuration Indication (TCI) state, and downlink control information indicating one or more Unified TCI states, When a TCI code point is received that has one designated unified TCI state, the type of the unified TCI state is set to separate, and either the downlink (DL) TCI state or the uplink (UL) TCI state is mapped by the downlink control information, the unified TCI state of the designated one of the DL TCI state and the UL TCI state is updated, and the unified TCI state of the other is maintained. A wireless communication method for a terminal, comprising the steps of: having a plurality of designated unified TCI states, and receiving a TCI code point on which a portion of the plurality of unified TCI states is mapped by the downlink control information, updating a portion of the designated unified TCI states among the plurality of unified TCI states and maintaining the remaining unified TCI states.

4. A transmission unit that transmits to a terminal configuration information including information about the type of Unified Transmission Configuration Indication (TCI) state, and downlink control information indicating one or more Unified TCI states, If the terminal has one designated unified TCI state, and the type of the unified TCI state is set to separate, and the TCI code point of the downlink control information is mapped to either the downlink (DL) TCI state or the uplink (UL) TCI state, then the terminal is instructed to update one of the designated unified TCI states (DL TCI state or UL TCI state) and maintain the other unified TCI state. A base station having, when the terminal has a plurality of specified unified TCI states and maps a portion of the plurality of unified TCI states to the TCI code points of the downlink control information, a control unit that instructs the terminal to update a portion of the specified unified TCI states and maintain the remaining unified TCI states.

5. A system having a terminal and a base station, The terminal includes a receiving unit that receives configuration information including information about the type of Unified Transmission Configuration Indication (TCI) state, and downlink control information indicating one or more Unified TCI states. When a TCI code point is received that has one designated unified TCI state, the type of the unified TCI state is set to separate, and either the downlink (DL) TCI state or the uplink (UL) TCI state is mapped by the downlink control information, the unified TCI state of the designated one of the DL TCI state and the UL TCI state is updated, and the unified TCI state of the other is maintained. The system has multiple designated unified TCI states, and when it receives a TCI code point on which a portion of the multiple unified TCI states is mapped according to the downlink control information, it has a control unit that updates the designated portion of the multiple unified TCI states and maintains the remaining unified TCI states. The base station includes a transmitting unit that transmits the setting information and the downlink control information to the terminal, If the terminal has one specified unified TCI state, sets the type of the unified TCI state to separate, and maps either the DL TCI state or the UL TCI state to the TCI code point of the downlink control information, then it is instructed to update one of the specified unified TCI states and maintain the other unified TCI state. A system comprising: a control unit that, when the terminal has the plurality of specified unified TCI states and maps a portion of the plurality of unified TCI states to the TCI code points of the downlink control information, instructs the terminal to update the specified portion of the unified TCI states and maintain the remaining unified TCI states.