Multi-hop communication techniques
    101.
    发明授权

    公开(公告)号:US11696210B2

    公开(公告)日:2023-07-04

    申请号:US17198061

    申请日:2021-03-10

    Abstract: Systems and methods configured for supporting multi-hop communications are described. Embodiments provide unavailable packet signaling by a base station aiding a multi-hop communication link. For example, the base station may transmit a predetermined “unavailable” message (e.g., an explicit and affirmatively transmitted message having predetermined content and/or format transmitted according to the schedule of the failed message) when an uplink data transmission in a multi-hop communication link fails or is otherwise currently unavailable. The unavailable packet signaling may be provided in association with a semi-persistent scheduling (SPS) and control channel scheduled retransmission technique, such as for supporting Internet of things (IoT), such as industrial Internet of things (IIoT), traffic. Other aspects and features are also claimed and described.

    Techniques for configuring search spaces for sidelink communication

    公开(公告)号:US11601948B2

    公开(公告)日:2023-03-07

    申请号:US17359018

    申请日:2021-06-25

    Abstract: Aspects of the present disclosure provide techniques for configuring a search space for sidelink communications between a plurality of user equipments (UEs). Particularly, the techniques described herein configure a search space (e.g., subset of all available sub-channels) to decode the sidelink packets (e.g., physical sidelink control channel (PSCCH) and physical sidelink shared channel (PSSCH)) transmitted between a first UE and a second UE over sidelink communication without the need for the receiver UE (e.g., second UE) to perform blind decoding of all sidelink sub-channels as is currently required in conventional systems. Thus, the disclosed techniques reduce latency and maximize the resource utilization (e.g., by using less processing power and bandwidth) for sidelink communications.

    RATE MATCHING ON SIDELINK AUTOMATIC GAIN CONTROL

    公开(公告)号:US20230061248A1

    公开(公告)日:2023-03-02

    申请号:US17459796

    申请日:2021-08-27

    Abstract: Methods, systems, and devices for wireless communications at a user equipment (UE) are described. A UE may receive a signal indicating a configuration for a symbol reserved for automatic gain control. Based on the configuration for the symbol reserved for automatic gain control, the UE may multiplex assistance data with the symbol reserved for automatic gain control. In some examples, the UE may multiplex physical sidelink shared channel data or physical sidelink control channel data or both physical sidelink shared channel data and physical sidelink control channel data with the symbol reserved for automatic gain control. The UE may then transmit the multiplexed assistance data in the symbol reserved for automatic gain control.

    Sidelink power control
    107.
    发明授权

    公开(公告)号:US11595912B2

    公开(公告)日:2023-02-28

    申请号:US16990587

    申请日:2020-08-11

    Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing and reporting reference signal received power (RSRP) measurements. In particular, the techniques described herein may allow a user equipment (UE) to efficiently identify reference signals on which to perform RSRP measurements (e.g., based on signaling from a base station), identify when to report RSRP measurements (e.g., aperiodically, periodically, or semi-persistently), and identify a channel on which to report RSRP measurements (e.g., a sidelink channel or an uplink channel). In addition, the techniques described herein may also allow a UE to efficiently identify open loop parameters to use to determine an appropriate transmit power for transmitting to another UE over a sidelink.

    Backward cancellation indication for sidelink transmission

    公开(公告)号:US11589268B2

    公开(公告)日:2023-02-21

    申请号:US17172963

    申请日:2021-02-10

    Abstract: Systems, apparatus, methods, and computer-readable media that enable and support backward cancellation indication for sidelink transmissions are described. In a situation where a sidelink data transmission with respect to one or more resources previously reserved for sidelink communication is ineffectual, a sidelink transmission user equipment (UE) may indicate the ineffectual data transmission in a transmission opportunity subsequent to the transmission having an ineffectual data transmission, such as by transmitting a backward cancellation indication (BCI). The BCI may provide information to a corresponding sidelink receiver UE regarding the resource with respect to the ineffectual data transmission. The sidelink receiver UE may use information provided by the BCI in determining whether to alter utilization of signals received on resources of the ineffectual data transmission. Other aspects and features are also claimed and described.

    MULTIPLEXING TRANSMIT POWER CONTROL INFORMATION AND SIDELINK DATA TRAFFIC

    公开(公告)号:US20230030712A1

    公开(公告)日:2023-02-02

    申请号:US17391461

    申请日:2021-08-02

    Abstract: This disclosure provides systems, methods, and devices for wireless communication that support closed-loop transmit power control (TPC) for user equipment (UE) sidelink communications. TPC information may be provided, by a first UE receiving transmissions from a second UE, with respect to a sidelink implemented between the UEs. TPC information may be multiplexed with sidelink data traffic in a sidelink communication between UEs. The TPC information may include a TPC indicator and one or more TPC messages for providing TPC commands with respect to one or more sidelinks. The sidelink data traffic of some examples may include data-only traffic, such as semi-persistent scheduled (SPS) data traffic, that is decoupled from accompanying sidelink control information (SCI). Other aspects and features are also claimed and described.

    CANCELLATION OF SIDELINK DATA CHANNEL

    公开(公告)号:US20230008396A1

    公开(公告)日:2023-01-12

    申请号:US17372140

    申请日:2021-07-09

    Abstract: Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may receive, from a base station, a first downlink control information (DCI) message which schedules a sidelink transmission from the first UE to a second UE on a first set of resources associated with a sidelink shared channel. The first UE may additionally receive a second DCI which indicates a second set of resources which are cancelled from the first set of resources. Based on the cancellation indication, the first UE may modify or cancel at least a portion of the sidelink transmission originally scheduled for the second UE, and may transmit the modified sidelink transmission over a portion of the first set of resources in accordance with the cancellation indication, the first DCI, and the second DCI.

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