Beam failure recovery method, apparatus, and device for multi-transmission and receiving points, and readable storage medium
AssigneeVivo Mobile Communication Co., Ltd.
InventorsChengxi Wang, Peng Sun, Yu Yang, Rakesh Tamrakar
Life of this patent
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Abstract
A beam failure recovery method for multi-transmission and reception points includes performing, by a terminal, a first operation in a case that beam failure occurs on at least some of multiple TRPs. The first operation includes one or more of following: measuring a candidate beam reference signal to determine a new beam; and sending a first message on one or multiple first resources. The first message includes an SR and/or a BFR MAC CE.
Claims20
A beam failure recovery method for multiple transmission and reception points, comprising:
- performing, by a terminal, a first operation in a case that beam failure occurs on at least some of multiple transmission and reception points (TRPs);
- wherein
- the first operation comprises:
- sending a first message on one or multiple first resources, wherein the first message comprises a media access control control element containing beam failure recovery information (BFR MAC CE);
- wherein
- in a case that the BFR MAC CE does not comprise information of a new beam and no candidate beam reference information is configured by a network side, the method further comprises:
- in a case that the terminal has detected a physical downlink control channel (PDCCH) for activating aperiodic channel state information (CSI) reporting, stopping, by the terminal, detection of a beam failure detection reference signal (BFD-RS) associated with a TRP with beam failure;
- wherein
- the PDCCH is associated with the TRP with beam failure.
A terminal, comprising a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, causes the terminal to perform:
- performing a first operation in a case that beam failure occurs on at least some of multiple transmission and reception points (TRPs);
- wherein
- the first operation comprises:
- sending a first message on one or multiple first resources, wherein the first message comprises a media access control control element containing beam failure recovery information (BFR MAC CE);
- wherein
- in a case that the BFR MAC CE does not comprise information of a new beam and no candidate beam reference information is configured by a network side, the program, when executed by the processor, causes the terminal to further perform:
- in a case that the terminal has detected a physical downlink control channel (PDCCH) for activating aperiodic channel state information (CSI) reporting, stopping detection of a beam failure detection reference signal (BFD-RS) associated with a TRP with beam failure;
- wherein
- the PDCCH is associated with the TRP with beam failure.
A non-transitory computer readable storage medium, wherein the non-transitory computer readable storage medium stores a program or instructions, and the program or instructions, when executed by a processor of a terminal, causes the terminal to perform:
- performing a first operation in a case that beam failure occurs on at least some of multiple transmission and reception points (TRPs);
- wherein
- the first operation comprises:
- sending a first message on one or multiple first resources, wherein the first message comprises a media access control control element containing beam failure recovery information (BFR MAC CE);
- wherein
- in a case that the BFR MAC CE does not comprise information of a new beam and no candidate beam reference information is configured by a network side, the program or instructions, when executed by a processor of a terminal, causes the terminal to further perform:
- in a case that the terminal has detected a physical downlink control channel (PDCCH) for activating aperiodic channel state information (CSI) reporting, stopping detection of a beam failure detection reference signal (BFD-RS) associated with a TRP with beam failure;
- wherein
- the PDCCH is associated with the TRP with beam failure.
Dependencies are inferred from the claim text.