CODEBOOK DESIGN WITH DIFFERENTIAL PHASE FEEDBACK IN FREQUENCY DOMAIN

    公开(公告)号:US20220123801A1

    公开(公告)日:2022-04-21

    申请号:US17427585

    申请日:2020-01-31

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit feedback to a base station indicating phase values for sub-bands in a bandwidth part (BWP). The base station may use the phase feedback to perform precoding on a set of beams. To support a reduced payload overhead for the feedback, the UE may implement differential phase feedback. For example, the UE may divide the BWP into a number of sub-band groups and may generate, for each sub-band group of each beam, a first set of bits indicating an absolute phase value for a first sub-band of the sub-band group. The UE may additionally generate a second set of bits indicating differential phase values for the other sub-bands of each sub-band group. The UE may report the first and second sets of bits for the beams to the base station for precoding.

    MEASUREMENT AND REPORTING FOR UE-TO-UE INTERFERENCE

    公开(公告)号:US20220095144A1

    公开(公告)日:2022-03-24

    申请号:US17421440

    申请日:2020-01-09

    Abstract: Methods, systems, and devices for wireless communications are described which provide for efficient backhaul communications and identification of resources for cross-link interference (CLI) measurements and reporting. A common resource pool may be configured in which CLI measurements for resources within the resource pool have a common configuration. When providing information indicating resources that are to be measured for CLI, a bitmap that indicates resources within the common resource pool may be provided with CLI measurement configurations corresponding to the common resource pool configuration. Such a bitmap may be communicated via backhaul connections between neighboring base stations when initiating a CLI measurement. Various described techniques also provide for common configuration for CLI measurements, provide for efficient reporting of CLI measurements, and provide for accurate representation of CLI based on measurements at a victim UE.

    LIMIT FOR RETRANSMISSION OF DROPPED FEEDBACK

    公开(公告)号:US20220086851A1

    公开(公告)日:2022-03-17

    申请号:US17446510

    申请日:2021-08-31

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may start a timer or counter in connection with failing to transmit a feedback message at a time for which the feedback message is scheduled for transmission. The UE may defer transmission of the feedback message for one or more attempts at transmitting the feedback message. The UE may perform one of: transmitting the feedback message before expiration of the timer or before the counter satisfying a count threshold, or discarding the feedback message after expiration of the timer or in connection with the counter satisfying the count threshold. Numerous other aspects are provided.

    RELAY SWITCHING FOR A REMOTE USER EQUIPMENT

    公开(公告)号:US20220078693A1

    公开(公告)日:2022-03-10

    申请号:US17443305

    申请日:2021-07-23

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a remote user equipment (UE) may receive a measurement reference channel configuration from a source relay. The UE may transmit a reference channel based at least in part on the measurement reference channel configuration. The UE may receive, from the source relay, a command for the remote UE to switch from the source relay to a target relay based at least in part on a measurement of the reference channel transmitted from the remote UE. Numerous other aspects are provided.

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