Timing advance (TA) handling for sidelink (SL)-assisted positioning

    公开(公告)号:US11690037B2

    公开(公告)日:2023-06-27

    申请号:US17811830

    申请日:2022-07-11

    Abstract: Timing advance (TA) handling for sidelink (SL)-assisted positioning of a first user equipment (UE), comprises determining the first UE is configured to transmit an SL positioning reference signal (SL-PRS) to a second UE for the SL-assisted positioning. A guard period length can be determined based on a configuration of the first UE for transmitting the SL-PRS, where the guard period may comprise a period of time during which the SL-PRS is transmitted by the first UE. A message can be sent to a serving transmission reception point (TRP) of the first UE, where the message indicates the guard period and comprises a TA-related request. The TA-related request includes a request to postpone applying a TA command received by the first UE until after the guard period, or a request for the serving TRP not to send a TA command to the first UE during the guard period.

    Positioning reference signal measurement for joint positioning

    公开(公告)号:US11609299B2

    公开(公告)日:2023-03-21

    申请号:US17165771

    申请日:2021-02-02

    Abstract: The positions of multiple user equipments (UEs) are jointly determined by a location server using positioning measurements from a comment set of positioning reference signals (PRS), which may include downlink (DL) PRS, uplink (UL) PRS, sidelink (SL) PRS, or a combination thereof. The common set of PRS may be selected by the location server, e.g., based on a rough estimate of position of the UEs determined by the location server, a recommendation from the UEs, or a position report from the UEs. Once selected by the location server, an indication of the common set of PRS is sent to the UEs. The common set of PRS, alternatively, may be selected by one or more UEs, e.g., by a controlling UE or consensus, and one or more UEs provide an indication of the common set of PRS to the location server.

    Sidelink resource pool distribution

    公开(公告)号:US11564206B2

    公开(公告)日:2023-01-24

    申请号:US17107344

    申请日:2020-11-30

    Abstract: Methods, systems, and devices for wireless communications are described. A first UE may transmit a sidelink request to a second UE. The sidelink request may indicate a set or a segment of the data resources. A second UE may transmit a positive sidelink response indicating that the set or the segment of resources is available for reservation, or may refrain from transmitting a positive sidelink response if the set or the segment of the data resources is unavailable for reservation. A third UE may transmit a negative sidelink response indicating that the set or the segment of the data resources is unavailable for reservation, or may refrain from transmitting a negative sidelink response if the set or the segment of the data resources is available for reservation. If the requested data resources are available, then the first UE may transmit a sidelink confirmation reserving the requested data resources.

    Timing advance (TA) handling for sidelink (SL)-assisted positioning

    公开(公告)号:US11425675B2

    公开(公告)日:2022-08-23

    申请号:US17160593

    申请日:2021-01-28

    Abstract: Timing advance (TA) handling for sidelink (SL)-assisted positioning of a first user equipment (UE), comprises determining the first UE is configured to transmit an SL positioning reference signal (SL-PRS) to a second UE for the SL-assisted positioning. A guard period length can be determined based on a configuration of the first UE for transmitting the SL-PRS, where the guard period may comprise a period of time during which the SL-PRS is transmitted by the first UE. A message can be sent to a serving transmission reception point (TRP) of the first UE, where the message indicates the guard period and comprises a TA-related request. The TA-related request includes a request to postpone applying a TA command received by the first UE until after the guard period, or a request for the serving TRP not to send a TA command to the first UE during the guard period.

    POSITIONING CALIBRATION WITH REFERENCE POINT

    公开(公告)号:US20220086822A1

    公开(公告)日:2022-03-17

    申请号:US17470917

    申请日:2021-09-09

    Abstract: Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) may determine that the UE is or will be at a location within a calibration region. The UE may report, to a network entity, location information, the location information being associated with the location within the calibration region. In an aspect, a network entity may obtain calibration error information associated with a user equipment (UE) and a calibration region. The network entity may send the calibration error information to the UE, to a base station, or to combinations thereof.

    DISTRIBUTED SIDELINK RESOURCE ALLOCATION

    公开(公告)号:US20210160820A1

    公开(公告)日:2021-05-27

    申请号:US17095627

    申请日:2020-11-11

    Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining shared resources associated with one or more user equipments (UEs) for sidelink communications, including control resources and data resources. A first UE may transmit a sidelink request to reserve a subset of data resources to a second UE, and may monitor for one or more sidelink responses indicating a positive sidelink response to the sidelink request, a negative sidelink response to the sidelink request, or both. The second UE may transmit a positive sidelink response if it is available for a data transmission. A third UE may transmit a negative sidelink response if it objects to the data transmission. The first UE may determine, based on monitoring for the one or more sidelink responses, whether to transmit a sidelink confirmation indicating a reservation of the subset of the data resources to the second UE.

    Periodic positioning report enhancement

    公开(公告)号:US12289703B2

    公开(公告)日:2025-04-29

    申请号:US17449606

    申请日:2021-09-30

    Abstract: Method and apparatus for a configuration for period positioning report enhancement. The apparatus obtains an indication of at least one of measurement instance related information or expiration time related information associated with a measurement of PRS for the location information report or transmission of the location information report. The apparatus generates the location information report based on a PRS received at the UE. The apparatus provides the location information report. At least one of the measurement of the PRS, generation of the location information report, or the transmission of the location information report is based on the indication of the at least one of the measurement instance related information or the expiration time related information.

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