TECHNIQUES FOR SEARCH SPACE BASED CHANNEL SENSING IN SIDELINK

    公开(公告)号:US20220201546A1

    公开(公告)日:2022-06-23

    申请号:US17127673

    申请日:2020-12-18

    Abstract: Aspects of the present disclosure provide techniques for search space channel sensing in sidelink communication between one or more sensors/actuators (SAs) and programmable logic controller (PLC) in internet of things (IoT) applications. Particularly, the techniques described herein configure a search space (e.g., subset of all available sub-channels/resources) for transmission and reception of sidelink packets (e.g., physical sidelink control channel (PSCCH) and physical sidelink shared channel (PSSCH)) between the PLC from the one or more SAs. Thus, in some instances, the UE may perform congestion control metrics for a one or more search spaces in which the UE may transmit sidelink communications. The congestion control metrics that may be limited to the search space may preserve UE resources that would otherwise need to be expended to perform channel sensing on an entire resource pool prior to initiating sidelink communication.

    CONDITIONAL CONFIGURED GRANT (CG) OCCASIONS FOR UPLINK TRANSMISSION

    公开(公告)号:US20220183046A1

    公开(公告)日:2022-06-09

    申请号:US17112400

    申请日:2020-12-04

    Abstract: Certain aspects of the present disclosure provide techniques for sending a configuration for conditional configured grant (CG) occasions for uplink transmission to a user equipment (UE). Each conditional CG occasion may be associated with multiple conditional CG resources. Each conditional CG resource may be associated with a sending window. The UE may monitor within sensing windows for conditional CG resources of a certain conditional CG occasion for over the air (OTA) signals from other UEs to determine if the conditional CG resources are available for uplink transmission. The UE may skip the conditional CG occasion when the conditional CG resources are not available. The UE may perform uplink transmission on the conditional CG resources when the conditional CG resources are available.

    SEMI-PERSISTENT SCHEDULING CANCELLATION VIA GROUP COMMON CONTROL INFORMATION

    公开(公告)号:US20220132477A1

    公开(公告)日:2022-04-28

    申请号:US17507699

    申请日:2021-10-21

    Abstract: A base station may associate multiple user equipment (UEs) with one or more UE groups and generate group common downlink control information (DCI) for each UE group for semi-persistent scheduling (SPS) cancellation, such that group common DCI may be transmitted to UEs of a respective UE group. The base station may associate each of UEs with a respective UE group, wherein the UEs are configured with SPS configurations by the base station, each SPS configuration configuring respective SPS occasions. The base station may further determine to cancel one or more SPS occasions associated with at least one of the SPS configurations, generate one or more group common DCI for the one or more UE groups to cancel the one or more SPS occasions, and transmit the one or more group common DCI to one or more UEs associated with the at least one of the SPS configurations.

    DOWNLINK/UPLINK (DL/UL) SWITCHING CAPABILITY REPORTING FOR SYSTEMS WITH HIGH SUBCARRIER SPACING (SCS)

    公开(公告)号:US20220124863A1

    公开(公告)日:2022-04-21

    申请号:US17496656

    申请日:2021-10-07

    Abstract: A method for wireless communication by a user equipment (UE) determines a downlink/uplink (DL/UL) switching capability of the UE, and reports the DL/UL switching capability to a network. The DL/UL switching capability may indicate a quantity of DL/UL switch points, N, supported by the UE, and a time duration to which the quantity of DL/UL switch points is applied. The DL/UL switching capability may indicate a minimum link duration for which the UE should maintain a link direction after a previous DL/UL switch operation and before a next DL/UL switch operation. The DL/UL switching capability may include a DL/UL switching delay indicating a time specified for the UE to complete a DL/UL switching operation. The DL/UL switching capability may be based on a reference subcarrier spacing (SCS).

    CONDITIONS TO DELAY HARQ-ACK FOR SPS PDSCH

    公开(公告)号:US20220104234A1

    公开(公告)日:2022-03-31

    申请号:US17486860

    申请日:2021-09-27

    Abstract: Aspects of the present disclosure relate to wireless communications, and more particularly, to mechanisms for using block acknowledgments to acknowledge semi-persistently scheduled (SPS) occasions from multiple SPS configurations. An example method generally includes determining that a slot scheduled for reporting acknowledgment feedback for an SPS physical downlink shared channel (PDSCH) potentially overlaps with at least one downlink or flexible symbol, deciding whether to cancel or to delay reporting the acknowledgment feedback to a network entity based on one or more conditions, and canceling or delaying reporting the acknowledgment feedback to the network entity, in accordance with the decision.

    CHANNEL RESERVATION FOR SIDELINK
    138.
    发明申请

    公开(公告)号:US20220078754A1

    公开(公告)日:2022-03-10

    申请号:US17370283

    申请日:2021-07-08

    Abstract: Certain aspects of the present disclosure provide techniques for channel reservation for sidelink. In some embodiments, the disclosure describes determining a resource allocation for communicating over a plurality of subchannels within a slot, wherein the resource allocation provides: (i) a first set of subchannels of the plurality of subchannels allocated for communicating data to multiple UEs, and (ii) a first subchannel of the plurality of subchannels allocated for communicating a group reservation signal comprising communication parameters indicative of at least the resource allocation for the first set of subchannels.

    SENSE AND TRANSMISSION OF MULTIPLE TRANSPORT BLOCKS FOR NEW RADIO SIDELINK

    公开(公告)号:US20220070936A1

    公开(公告)日:2022-03-03

    申请号:US17445125

    申请日:2021-08-16

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine candidate resources on one or more physical sidelink shared channels (PSSCHs) that are clear for transmitting at least two transport blocks, based at least in part on sensing a plurality of subchannels on the one or more PSSCHs with respect to listen-before-talk completion instants for the at least two transport blocks. The UE may select, from among the candidate resources, transmit resources on the one or more PSSCHs for transmitting the at least two transport blocks such that the at least two transport blocks are transmitted in one of: different subchannels of a same slot, or contiguous slots of a same subchannel. The UE may transmit the at least two transport blocks in the transmit resources. Numerous other aspects are provided.

    EFFECTIVE CONTENTION WINDOWS FOR NEW RADIO SIDELINK OVER UNLICENSED BANDS

    公开(公告)号:US20220070935A1

    公开(公告)日:2022-03-03

    申请号:US17443241

    申请日:2021-07-22

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select, for a sidelink transmission over an unlicensed band and associated with a medium access control (MAC) protocol data unit (PDU), one or more candidate resources of a set of candidate resources that are within an adaptive effective contention window (ECW). The UE may adjust at least one parameter of the adaptive ECW to determine an adjusted at least one parameter based at least in part on a channel access output associated with the one or more candidate resources. The UE may transmit the MAC PDU using the one or more candidate resources or an additional one or more candidate resources, wherein the additional one or more candidate resources are selected based at least in part on the adjusted at least one parameter. Numerous other aspects are provided.

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