INDICATION OF SIDELINK PROCESS FOR SIDELINK FEEDBACK

    公开(公告)号:US20230010997A1

    公开(公告)日:2023-01-12

    申请号:US17305595

    申请日:2021-07-09

    Abstract: This disclosure provides systems, methods and apparatuses for indicating sidelink processes for sidelink feedback. A second user equipment (UE) may request hybrid automatic repeat request (HARQ) responses from a first UE for a particular set of sidelink processes over a physical sidelink feedback channel. To indicate multiple sidelink processes, the second UE may indicate, in sidelink control information, a window of sidelink processes. The window may be a sliding window that starts with a starting sidelink process and extends through other sidelink processes. The second UE may transmit data for the sidelink processes in the sliding window and receive feedback for the indicated sidelink processes. In some aspects, the first UE may select, in coordination with the second UE, the sidelink processes for which feedback is to be provided.

    SIDELINK COMMUNICATION ORDERING
    56.
    发明申请

    公开(公告)号:US20220386318A1

    公开(公告)日:2022-12-01

    申请号:US17303344

    申请日:2021-05-27

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on an access link from a base station, a first downlink control information (DCI) that schedules a first communication on a physical sidelink shared channel (PSSCH) and a second DCI that schedules a second communication on the PSSCH. The first communication and the second communication may be scheduled according to a rule for overlapping or ordering communications on the PSSCH that are associated with one or more hybrid automatic repeat request identifiers. The UE may transmit the first communication and the second communication as scheduled. Numerous other aspects are described.

    TRANSMITTER MULTIPLEXING IN MULTI-OPPORTUNITY SIDELINK GRANT

    公开(公告)号:US20220369344A1

    公开(公告)日:2022-11-17

    申请号:US17321132

    申请日:2021-05-14

    Abstract: Aspects of the present disclosure provide systems and methods for assigning one or more user equipments (UEs) at one or more corresponding starting positions of multiple slots to perform channel access procedures, such as listen before talk (LBT) procedures in New Radio unlicensed band (NR-U) sidelink communications. The network entity may indicate, to a UE, a starting position in a multi-opportunity grant (e.g., a DCI scheduling multiple slots). The network entity may multiplex different transmitter UEs with different starting positions. If the channel accessing procedure is successful, the transmitter UE with the earliest starting position than the rest may block the rest of the transmitter UEs. In some cases, starting position hopping may be used so that the multiple UEs may have different priority at different slots. In some cases, the DCI may include LBT parameters that are inherited from NR-U uplink transmission configurations.

    SCHEDULING OPERATION WITH MODE-1 SCHEDULING IN SIDELINK AND SIDELINK UNLICENSED OPERATIONS

    公开(公告)号:US20220330306A1

    公开(公告)日:2022-10-13

    申请号:US17716695

    申请日:2022-04-08

    Abstract: Aspects described herein relate to sidelink transmissions. In an example, a first user equipment (UE) may receive, from a network entity, a first sidelink grant for a transmission between the first UE and a second UE; communicate the transmission according to the first sidelink grant to the second UE; determine initiation of a sidelink round trip timer subsequent to communicating the transmission to the second UE; and initiate an inactive mode for the first UE based on a second grant not being received from the network entity before completion of a duration of a sidelink retransmission timer that was initiated upon completion of a duration of the sidelink round trip timer, the first UE being configured out of an ON duration of a discontinuous reception (DRX) cycle, and an inactivity timer expiring before completion of the duration of the sidelink retransmission timer.

    METHODS AND SYSTEM FOR ESTABLISHING MULTIPLE STARTING POINTS FOR SIDELINK TRANSMISSIONS

    公开(公告)号:US20220095369A1

    公开(公告)日:2022-03-24

    申请号:US17445306

    申请日:2021-08-17

    Abstract: Wireless communications systems and methods related to multiple starting points for new radio sidelink transmission over unlicensed band are provided. In some aspects, a UE may perform a channel access procedure to access a first physical sidelink shared channel (PSSCH) transmission resource of an unlicensed new radio spectrum. In some aspects, the first PSSCH transmission resource may be reserved by a control message and may include a plurality of transmission starting points. Further, the first UE may transmit first data to a second UE via the first PSSCH transmission resource starting at a later transmission starting point than one or more prior transmission starting points of the plurality of transmission starting points when the performing the channel access procedure fails at each of the one or more prior transmission starting points.

    LISTEN-BEFORE-TALK (LBT) AWARE AUTONOMOUS SENSING FOR SIDELINK

    公开(公告)号:US20220061095A1

    公开(公告)日:2022-02-24

    申请号:US17305454

    申请日:2021-07-07

    Abstract: Wireless communications systems and methods related to LBT aware autonomous sidelink sensing are provided. A first UE determines, based on a projected listen-before-talk (LBT) completion time, at least one of a sensing window or a first resource selection window. The first UE senses, based on the determining, in a sidelink resource pool within a shared radio frequency band during the sensing window. The first UE identifies, based on the sensing, a subset of resources from the sidelink resource pool that are within the first resource selection window. The first UE selects at least a first resource from the subset of resources. The first UE transmits, to a second UE using the selected first resource, a sidelink transmission.

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