Triggered sidelink quasi-colocation parameter update

    公开(公告)号:US11128366B2

    公开(公告)日:2021-09-21

    申请号:US16898356

    申请日:2020-06-10

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect that a trigger condition is satisfied based at least in part on a motion sensor signal of the UE. The UE may trigger or transmit an update to a parameter for sidelink beam management based at least in part on the trigger condition being satisfied, wherein the UE is a transmitter of a synchronization signal used for the sidelink beam management, or a receiver of the synchronization signal transmitted by another UE used for the sidelink beam management. Numerous other aspects are provided.

    SIDELINK AND UPLINK PRIORITIZED CANCELLATION

    公开(公告)号:US20210274543A1

    公开(公告)日:2021-09-02

    申请号:US17185316

    申请日:2021-02-25

    Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit a configured grant that indicates time-frequency resources for a user equipment (UE) to use to transmit sidelink or uplink messages in a wireless communications system. To reduce the amount of low priority traffic that may interfere with higher priority traffic, the base station may configure a threshold probability to allow high priority sidelink transmissions and to cancel low priority transmissions. The base station may transmit a cancellation indication that includes a priority indication instructing the UE to cancel transmissions having a priority less than a priority threshold during the allocated time-frequency resources. Based on transmitting the cancellation indication, the base station may cancel transmissions that have low priority, and the UE may determine whether to transmit (or to refrain from transmitting) one or more messages based on the priority of the message.

    Millimeter wave relay link discovery

    公开(公告)号:US11108459B2

    公开(公告)日:2021-08-31

    申请号:US16446501

    申请日:2019-06-19

    Abstract: Aspects of the disclosure relate to millimeter wave (mmWave) device discovery for relay communication using pseudo-omnidirectional beams. A first user equipment (UE) may transmit a synchronization signal over each pseudo-omnidirectional beam to enable a second UE to discover a presence of the second UE within a range of the first UE. Upon the occurrence of an external event, a base station may either trigger a beam training procedure with the second UE to establish a relay link between the first and second UEs or broadcast a message to all UEs requesting a relay link be established with the first UE. The first and second UEs may then select a directional beam pair link (BPL) for the relay link and establish the relay link to enable information to be relayed between the base station and the first UE via the relay link.

    Supporting scheduling plan indications

    公开(公告)号:US11089622B2

    公开(公告)日:2021-08-10

    申请号:US16418824

    申请日:2019-05-21

    Abstract: A base station central unit (CU) may receive a measurement report from one or more user equipments (UEs). The CU may identify a scheduling plan indication (SPI) for one or more scheduling nodes in a network, based at least in part on the received measurement reports. The SPI may specify a pattern of scheduling states, over a period of time, to be used by the one or more scheduling nodes to schedule communication resources for one or more UEs in the network. The scheduling states may (e.g., based on an interference profile determined from the received measurement reports) specify UEs or other communication resources for transmission scheduling decisions made by the scheduling nodes, or may specify beam patterns for beamforming procedures performed by the scheduling nodes. In some cases, the scheduling nodes may identify tentative SPIs, which the CU may pass amongst other scheduling nodes for distributed scheduling coordination schemes.

    MULTIPLE MSG1 FOR PDCCH ORDERED RACH

    公开(公告)号:US20210243819A1

    公开(公告)日:2021-08-05

    申请号:US17240039

    申请日:2021-04-26

    Abstract: Methods, systems, and devices for multiple random access channel (RACH) message 1 (Msg1) transmission for physical downlink control channel (PDCCH) ordered RACH are described. A user equipment (UE) may perform the multiple Msg1 transmission as part of a CFRA or CBRA procedure for access. The UE may perform the multiple Msg1 transmissions in a cyclic consecutive manner during configured RACH occasions or according to explicit time and frequency indications of a random access response (RAR) window. Based on the multiple Msg1 transmission procedure, the UE may reduce latency for random access procedure on the RACH and improve signaling throughput. In some cases, the UE may support beam correspondence and may perform multiple Msg1 transmissions to enhance multi-beam diversity during RACH transmission by performing transmission corresponding to RACH occasions mapped to different synchronization signal blocks (SSBs).

    Beam Configuration Of A Smart MMW Repeater For Forwarding RACH Message 1

    公开(公告)号:US20210235501A1

    公开(公告)日:2021-07-29

    申请号:US16752338

    申请日:2020-01-24

    Abstract: Various aspects include methods for receiver (RX) beam sweep configuration of a millimeter wave (MMW) repeater during random access channel (RACH) procedures. Various embodiments may include determining two or more different RX beam sweep configurations for one or more RACH occurrences (ROs) associated with a synchronization signal block (SSB), generating a RACH configuration message indicating the two or more different RX beam sweep configurations for the one or more ROs, and sending the RACH configuration message to an MMW repeater. Various embodiments may also include receiving a RACH configuration message indicating two or more different RX beam sweep configurations for one or more ROs associated with an SSB, and controlling one or more RX antennas of the MMW repeater to perform RX beam sweeping during the one or more ROs according to the RACH configuration message to receive a RACH message 1 from a computing device.

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