RADIO RESOURCE CONTROL (RRC) INACTIVE AND RRC IDLE MODE POSITIONING CONFIGURATION

    公开(公告)号:US20220225462A1

    公开(公告)日:2022-07-14

    申请号:US17481642

    申请日:2021-09-22

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) may transmit, to a network entity comprising a location server and/or base station, a positioning capability report that includes a set of positioning capability parameters for a radio resource control (RRC) connected state. The UE may enter an RRC unconnected state, the RRC unconnected state comprising an RRC inactive state or an RRC idle state. The UE may perform positioning reference signal (PRS) processing during the RRC unconnected state according to one or more positioning capability parameters from the set of positioning capability parameters for the RRC connected state.

    SYSTEMS AND METHODS FOR HANDOVER OF 5G LOCATION SESSIONS FOR AN NG-RAN LOCATION MANAGEMENT COMPONENT

    公开(公告)号:US20220070753A1

    公开(公告)日:2022-03-03

    申请号:US17523782

    申请日:2021-11-10

    Abstract: A RAN location server function (e.g. for 5G New Radio), referred to as Location Management Component (LMC), may be included in a gNB and connected to a gNB Central Unit (gNB-CU). The gNB-CU may receive a location request for a UE (e.g. from an AMF) and may initiate a location session for the UE, including selecting an LMC for the location session. The gNB-CU may handover the UE to a new serving gNB during the location session. The LMC for the location session may then remain unchanged after the handover or may be changed to a new LMC to suit the new serving gNB. The location session may then continue using the original LMC if not changed or the new LMC if changed.

    SYSTEM AND METHODS FOR RAPID ROUND-TRIP-TIME MEASUREMENT

    公开(公告)号:US20220070714A1

    公开(公告)日:2022-03-03

    申请号:US17523793

    申请日:2021-11-10

    Abstract: Disclosed are techniques for determining round-trip time (RTT) of a user equipment (UE). In an aspect, each gNodeB in a plurality of gNodeB s measure signaling data related to an uplink RTT reference signal received from the UE and the downlink RTT reference signal transmitted by each gNodeB. The signaling data comprises one of a processing delay between a time of arrival (TOA) of the uplink RTT reference signal and a time of transmission (TOT) of the downlink RTT reference signal or a total RTT between the TOT of the downlink RTT reference signal and the TOA of the uplink RTT reference signal. The signaling data is sent to a single entity, other than the UE, e.g., another gNodeB or a location server, where signaling data relevant to the UE is aggregated. The aggregated signaling data may be sent to the UE to determine the RTT for the UE or used by the location server to determine the RTT for the UE.

    METHODS AND SYSTEMS FOR SEGMENTATION OF POSITIONING PROTOCOL MESSAGES

    公开(公告)号:US20220038952A1

    公开(公告)日:2022-02-03

    申请号:US17450967

    申请日:2021-10-14

    Abstract: Methods and techniques are described for limiting a size of LTE Positioning Protocol (LPP) messages in a location session between a user equipment and location server. In one embodiment, a first device sends a first LPP message to a second device, indicating that the first device is capable of receiving segmented LPP messages. Subsequently, the first device receives a plurality of LPP message segments from the second device comprising one or more non-final LPP message segments and a final LPP message segment, where each LPP message segment includes a “non-final” or “final” indication. The first device stores the non-final LPP message segments and processes the LPP message segments after receiving the final LPP message segment. Prior to sending the first LPP message, the first device may receive an LPP message from the second device indicating the second device is capable of sending segmented LPP messages.

    HANDLING OF RADIO FREQUENCY FRONT-END GROUP DELAYS FOR ROUND TRIP TIME ESTIMATION

    公开(公告)号:US20220007226A1

    公开(公告)日:2022-01-06

    申请号:US17476316

    申请日:2021-09-15

    Abstract: Disclosed are techniques for handling of radio frequency front-end group delays (GDs) for round trip time (RTT) estimation. In an aspect, a network entity determines information indicating a network total GD and a user equipment (UE) determines information indicating a UE total GD. The network entity transmits one or more RTT measurement (RTTM) signals to the UE, each including a RTTM waveform. The UE determines one or more one or more RTT response (RTTR) payloads for one or more RTTR signals, each including a RTTR waveform. The UE transmits the RTTR signal(s) to the network entity. For each RTTR signal, a transmission time of the RTTR waveform and/or the RTTR payload is/are determined based on the UE total GD. The network entity determines a RTT between the UE and the network entity based on the RTTM signal(s), the RTTR signal(s), and the information indicating the network total GD.

    DETERMINING A PATH LOSS FOR SEMI-PERSISTENT SOUNDING REFERENCE SIGNALS FOR POSITIONING

    公开(公告)号:US20210297289A1

    公开(公告)日:2021-09-23

    申请号:US16988788

    申请日:2020-08-10

    Abstract: Techniques are provided for determining a path loss for semi-persistent SRS-for-positioning if the path loss resource set is not updatable through a MAC CE. An example method according to the disclosure includes receiving, from a serving base station, a medium access control control element, determining a spatial relation reference of a first sounding reference signal resource, setting a path loss reference for a sounding reference signal for positioning resource set to the spatial relation reference if the spatial relation reference is not an uplink reference signal, setting the path loss reference equal to a reference system resource from a synchronization signal block the user equipment utilizes to obtain a master information block if the spatial relation reference is an uplink reference signal, and transmitting the resources of the sounding reference signal for positioning resource set based at least in part on the path loss reference.

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