SOUNDING REFERENCE SIGNAL (SRS) CONFIGURATIONS FOR ONE OR MORE FREQUENCY HOPS

    公开(公告)号:US20210105040A1

    公开(公告)日:2021-04-08

    申请号:US16910607

    申请日:2020-06-24

    Abstract: In an aspect, a UE receives an SRS configuration that indicates, for at least one frequency hop, an allocation of less than all subcarriers of a sounding bandwidth to SRS per OFDM symbol in a respective frequency hop. The UE transmits, to a BS in a first frequency hop, OFDM symbols with SRS across all subcarriers of a first sounding bandwidth associated with the first frequency hop. In another aspect, the UE receives an SRS configuration that indicates, for frequency hops associated with the same comb-type, a sequence of resource element offsets that is based on a number of OFDM symbols used in the respective frequency hop. The UE transmits OFDM symbols with SRS in accordance with the sequence of resource element offsets indicated by the SRS configuration for the respective frequency hop.

    LOW-TIER USER EQUIPMENT POSITIONING WITH PREMIUM USER EQUIPMENT ASSISTANCE

    公开(公告)号:US20210099832A1

    公开(公告)日:2021-04-01

    申请号:US17038294

    申请日:2020-09-30

    Abstract: Disclosed are techniques for wireless positioning. In an aspect, a reduced-capability user equipment (UE) receives, from each of one or more premium UEs, one or more parameters indicating a quality of a location estimate of the premium UE, selects at least one premium UE based on the quality of the location estimate of the at least one premium UE, and derives a location estimate of the reduced-capability UE based on the location estimate of the at least one premium UE. In another aspect, a reduced-capability UE transmits, to at least one premium UE, a request to perform one or more positioning measurements of one or more downlink reference signals, receives, from the at least one premium UE, a measurement report comprising the one or more positioning measurements, and determines a location estimate of the reduced-capability UE based on the one or more positioning measurements in the measurement report.

    SOUNDING REFERENCE SIGNAL AND DOWNLINK REFERENCE SIGNAL ASSOCIATION IN A POWER SAVING MODE

    公开(公告)号:US20210058210A1

    公开(公告)日:2021-02-25

    申请号:US16996347

    申请日:2020-08-18

    Abstract: Aspects of the present disclosure relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that indicates an association between a sounding reference signal (SRS) resource set and a downlink reference signal resource to be used to determine a transmission property of one or more SRSs in the SRS resource set, wherein the downlink reference signal resource is associated with a first set of ports to be used for performing measurement of the downlink reference signal resource. The UE may determine the transmission property of the one or more SRSs in the SRS resource set using fewer ports than a number of ports included in the first set of ports, based at least in part on a determination that the UE is operating in a power saving mode. The UE may transmit the one or more SRSs using the transmission property. Other aspects are provided.

    SIDELINK-BASED CHANNEL STATE INFORMATION

    公开(公告)号:US20210050888A1

    公开(公告)日:2021-02-18

    申请号:US17063420

    申请日:2020-10-05

    Abstract: Certain aspects of the present disclosure provide techniques for providing channel state information associated with sidelink air interfaces. A method that may be performed by a first wireless node (e.g., a user equipment) includes receiving, from a base station, a reference signal (RS) configuration indicating one or more sidelink resource sets and transmitting, to one or more second wireless nodes, one or more sidelink reference signals based at least in part on the RS configuration. The method also includes receiving one or more feedback reports from the one or more second wireless nodes, wherein each of the feedback reports includes an ordered sequence of at least one parameter associated with a sidelink channel quality of the sidelink reference signals. The method further includes forwarding the one or more feedback reports to the base station.

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