Restricted set indication in multi-beam operation

    公开(公告)号:US10575307B2

    公开(公告)日:2020-02-25

    申请号:US15787528

    申请日:2017-10-18

    Abstract: In multi-beam operation, path losses or other aspects of electromagnetic signal propagation, may make it necessary to restrict certain beam directions used between two devices. A base station determines a restricted-beam set including at least one beam direction that is restricted for at least one of a signal transmission or a signal reception. The base station also restricts at least one of a transmission or a reception of a signal based on the restricted-beam set. Additionally, the base station determines an updated restricted-beam set including at least one beam direction that is restricted for at least one of transmission or reception of an electromagnetic signal. The base station also updates the restricted-beam set by adding or removing at least one beam direction to the restricted set corresponding to at least one of signal transmission or signal reception.

    Beam refinement techniques in millimeter wave systems

    公开(公告)号:US10523300B2

    公开(公告)日:2019-12-31

    申请号:US16118284

    申请日:2018-08-30

    Abstract: Methods, systems, and devices for wireless communications are described that provide for refinement of receive beam beamforming parameters at a user equipment (UE). A UE may transmit two or more signals in an uplink transmission that have different beamforming parameters. A base station receiving the uplink transmission may measure the two or more signals, and identify a first signal of the two or more signals based at least in part on the measuring. The base station may inform the UE of the identified first signal, which the UE may use to set receive beam beamforming parameters for one or more subsequent downlink transmissions.

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