CELL-SPECIFIC REFERENCE SIGNAL FOR TRACKING LOOP UPDATE

    公开(公告)号:WO2023086716A1

    公开(公告)日:2023-05-19

    申请号:PCT/US2022/077901

    申请日:2022-10-11

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a New Radio (NR) user equipment (UE) may receive a configuration that configures the NR UE with a capability to use a Long Term Evolution (LTE) cell-specific reference signal (CRS) for updating a tracking loop. The NR UE may receive an LTE CRS. The NR UE may update the tracking loop based at least in part on the LTE CRS. Numerous other aspects are described.

    FLEXIBLE RESOURCE ALLOCATION FOR POSITIONING REFERENCE SIGNALS IN TIME AND FREQUENCY DOMAIN

    公开(公告)号:WO2023069817A1

    公开(公告)日:2023-04-27

    申请号:PCT/US2022/076721

    申请日:2022-09-20

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a network entity, such as a location server or base station, may determine a positioning reference signal (PRS) frequency hopping configuration that specifies a plurality of PRS hops within a PRS resource set, each PRS hop occupying a specified set of one or more contiguous physical resource blocks, and further specifying a time gap between PRS hops to allow a sufficient retuning gap for a user equipment (UE) with reduced BW capability and/or relaxed processing time. The network entity may transmit the PRS frequency hopping configuration to at least one UE, e.g., via broadcast, multicast, groupcast, or unicast over Uu or PC5 links. The pre-configured time gap between PRS hops allows a reduced capacity UE to retune its RF circuit and thus allow PRS measurements over a larger bandwidth than what the UE can support without frequency hopping.

    POWER CONTROL TECHNIQUES FOR SIDELINK COMMUNICATIONS

    公开(公告)号:WO2023069184A1

    公开(公告)日:2023-04-27

    申请号:PCT/US2022/041083

    申请日:2022-08-22

    Abstract: Methods, systems, and devices for wireless communications are described. For example, a UE may determine a power control adjustment based on sidelink messages received from other UEs. The UE may transmit, to the other UEs, an indication of the power control adjustment to the other UEs. The other UEs may transmit additional sidelink messages in accordance with the power control adjustment, such that power levels of the additional sidelink message satisfy a threshold. A base station may indicate a power control adjustment to one or more UEs. For example, the base station may receive power control information associated with sidelink communications between a set of UEs. The base station may transmit an indication of a power adjustment parameter for a transmit power level for sidelink messages transmitted between two UEs of the set. The value of the power adjustment parameter may be based on the received power control information.

    CONFIGURATION AND PROCEDURE FOR SEARCH SPACE USED IN SMALL DATA TRANSFER OVER PRE-CONFIGURED UPLINK RESOURCES

    公开(公告)号:WO2023000123A1

    公开(公告)日:2023-01-26

    申请号:PCT/CN2021/106990

    申请日:2021-07-19

    Abstract: A UE and a base station are disclosed. The UE may receive, from a base station, an indication of a configuration of an SS and a set of candidate DL-RSs associated with a plurality of CG-SDT resources. The base station may monitor for the EIL data transmission from the LIE corresponding to a CG-SDT occasion of the CG-SDT resources. The UE may measure a RSRP of each of the set of candidate DL-RSs associated with the CG-SDT resources. The UE may select an UL beam based on the measured RSRP of each of the set of candidate DL-RSs associated with the CG-SDT resources. The UE may transmit, to the base station via the selected UL beam, the UL data transmission over a CG-SDT occasion of the plurality of CG-SDT resources. The UE may monitor the SS for a response to the UL data transmission from the base station.

    TIME REVERSAL FOR ON-DEMAND POSITIONING
    6.
    发明申请

    公开(公告)号:WO2022235336A1

    公开(公告)日:2022-11-10

    申请号:PCT/US2022/020417

    申请日:2022-03-15

    Abstract: Methods and apparatus for on-demand transmission of time reversal (TR) precoded positioning signals are disclosed. In an example method, a user equipment (UE) may transmit a request for transmission of one or more positioning signals from a base station, the request associated with a TR precoding, transmit one or more signals to the base station, and receive from the base station the one or more positioning signals based at least in part on the transmitted request and the one or more transmitted signals.

    POSITIONING OF A USED EQUIPMENT BY ROUND TRIP TIME WITH A RECONFIGURABLE INTELLIGENT SURFACE (RIS)

    公开(公告)号:WO2022211884A1

    公开(公告)日:2022-10-06

    申请号:PCT/US2022/013714

    申请日:2022-01-25

    Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) transmits an uplink reference signal towards a first reconfigurable intelligent surface (RIS) associated with at least one base station, receives, from the first RIS, a reflection of the uplink reference signal, wherein at least one transmission parameter of the reflection identifies the reflection as the reflection of the uplink reference signal, and enables a distance between the UE and the first RIS to be calculated based, at least in part, on a transmission-to-reception (Tx-Rx) time difference measurement for the UE, the Tx-Rx time difference measurement representing a difference between a transmission time from the UE of the uplink reference signal to the first RIS and a reception time at the UE of the reflection of the uplink reference signal from the first RIS.

    RECONFIGURABLE INTELLIGENT SURFACE (RIS)-ASSISTED TIMING ERROR CALIBRATION FOR MOBILE DEVICE POSITIONING

    公开(公告)号:WO2022187773A1

    公开(公告)日:2022-09-09

    申请号:PCT/US2022/070423

    申请日:2022-01-28

    Abstract: Techniques for reconfigurable intelligent surface (RIS)-assisted calibration for timing errors in wireless nodes may comprise obtaining a set of wireless reference signal measurements comprising: first, second, third, and fourth measurements of reference signals traveling between the mobile device, a first wireless node, and a second wireless node, wherein a portion of the reference signals are reflected by the RIS while traveling between the mobile device and the first or second wireless node. A differential value comprising a difference between the third measurement and the fourth measurement is also obtained. Determining a position estimate of the mobile device may then be performed, based at least in part on the set of wireless reference signal measurements, the differential value, and a respective location of each of the first wireless node, the second wireless node, and the RIS.

    NEAR/FAR-FIELD DETERMINATION OF RECONFIGURABLE INTELLIGENT SURFACE (RIS) FOR MOBILE DEVICE POSITIONING

    公开(公告)号:WO2022183158A1

    公开(公告)日:2022-09-01

    申请号:PCT/US2022/070422

    申请日:2022-01-28

    Abstract: Techniques for determining reconfigurable intelligent surface (RIS) operation for RIS-assisted position determination of a mobile device in a wireless communications system, according to this disclosure, may comprise determining, for one or more RISs, whether the mobile device is within a near-field operational distance of the RIS based at least in part on a determined near-field operational distance of the RIS, and a relative distance between the mobile device and the RIS. Techniques may also comprise determining an RIS-assisted position of the mobile device based on measurements made by the mobile device of radio frequency (RF) signals reflected from at least one RIS of the one or more RISs. Techniques may also comprise providing the determined RIS-assisted position of the mobile device.

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