POSITIONING REFERENCE SIGNAL STAGGERING CONFIGURATION

    公开(公告)号:US20220417896A1

    公开(公告)日:2022-12-29

    申请号:US17930037

    申请日:2022-09-06

    Abstract: Disclosed are methods and apparatuses for resolving aliasing ambiguities produced when using channel state information reference signal, a sounding reference signal (SRS) or other transmission as a positioning reference signal (PRS) occupying a subset of tones of a PRS bandwidth. The aliasing ambiguity results in a plurality of different possible positioning measurements, such as time of arrival (TOA), reference signal timing difference (RSTD), or reception to transmission difference (Rx−Tx). The aliasing ambiguity may be resolved using a previous position estimate that may be used to produce an approximation of the expected positioning measurement. A position estimate may be generated using a multiple stage PRS configuration, in which one or more stages provide a coarse position estimate that has no ambiguity, which can be used to resolve the ambiguity of a more accurate position estimate resulting from the PRS signal.

    SYSTEMS AND METHODS FOR STORAGE OF UE POSITIONING CAPABILITIES IN A NETWORK

    公开(公告)号:US20220317231A1

    公开(公告)日:2022-10-06

    申请号:US17718288

    申请日:2022-04-11

    Abstract: The positioning capabilities of a User Equipment (UE) are stored in a core network to reduce positioning latency when the UE indicates that its positioning capabilities are stable and/or are long term valid. The UE may provide its positioning capabilities to a location server during a location session along with an indication of whether the positioning capabilities are stable. The location server may enable storage of the positioning capabilities for the UE in the core network, e.g., in the location server or another entity in the core network such as Access and Mobility Management Function (AMF), if there is an indication that the positioning capabilities are stable. The AMF may include a UE identifier in location requests with which the location server may retrieve the UE positioning capabilities if stored at the location server or may include the UE positioning capabilities if stored at the AMF.

    CALIBRATION OF ANGULAR MEASUREMENT BIAS FOR POSITIONING OF A USER EQUIPMENT

    公开(公告)号:US20220240322A1

    公开(公告)日:2022-07-28

    申请号:US17644958

    申请日:2021-12-17

    Abstract: In an aspect, a communications device obtains a residual AoA bias associated with a first AoA measurement of a RS-P transmitted from a wireless reference node to a first base station, the wireless reference node associated with a location known to the communications device, obtains a second AoA measurement associated with an uplink signal (e.g., PRACH, SRS, UL-SRS-P, etc.) transmitted from a UE to the first base station, and calibrates the second AoA measurement based on the residual AoA bias. In another aspect, a communications device obtains a residual AoD bias associated with a first AoD measurement of a RS-P transmitted from a first base station to a wireless reference node with a known location, obtains a second AoD measurement associated with a downlink signal (e.g., DL-PRS) transmitted from the first base station to a UE, and calibrates the second AoD measurement based on the residual AoD bias.

    REFERENCE TRANSMISSION RECEPTION POINT FOR FREQUENCY-DOMAIN RESOURCE AND ON-DEMAND REQUEST FOR POSITIONING REFERENCE SIGNAL

    公开(公告)号:US20220007349A1

    公开(公告)日:2022-01-06

    申请号:US17239331

    申请日:2021-04-23

    Abstract: In an embodiment, a UE transmits an on-demand PRS request for PRS(s) on selected frequency-domain resource(s) (e.g., frequency layer, frequency band, CC, etc.). In another embodiment, a UE receives, from a network component (e.g., BS, core network component, LMF, location server, etc.), configuration of frequency-domain resources (e.g., frequency layer, frequency band, CC, etc.), wherein each frequency-domain resource configuration is associated with a bandwidth and SCS. The UE further receives, from the network component, configuration of PRS(s), wherein each PRS is associated with a single frequency-domain resource from the frequency-domain resources. The UE determines a single reference TRP for each of the frequency-domain resources, performs PRS measurements on the PRS(s), and determines positioning measurements at least based on the PRS measurements and the determined reference TRPs.

    MEASUREMENT PERIOD FORMULATION FOR POSITIONING REFERENCE SIGNAL (PRS) PROCESSING

    公开(公告)号:US20210320773A1

    公开(公告)日:2021-10-14

    申请号:US17205838

    申请日:2021-03-18

    Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives a positioning reference signal (PRS) configuration for at least a first transmission-reception point (TRP), the PRS configuration including one or more repetitions of one or more PRS resources within a PRS resource set of a PRS instance associated with the TRP, beam sweeps one or more receive beams within the PRS instance based on a number of the one or more repetitions being greater than a number of repetitions of the one or more PRS resources needed to meet an accuracy requirement, and beam sweeps the one or more receive beams across a plurality of PRS instances associated with the TRP based on the number of the one or more repetitions not being greater than the number of repetitions of the one or more PRS resources needed to meet the accuracy requirement.

    DETERMINATION OF AN ACTIVE BANDWIDTH PART TRANSITION DURING A POSITIONING SESSION

    公开(公告)号:US20210314800A1

    公开(公告)日:2021-10-07

    申请号:US17127360

    申请日:2020-12-18

    Abstract: In an aspect, a UE receives, from a network entity, a configuration of PRS or SRS-P resources for a positioning session, receives a configuration of at least one BWP from a serving BS, identifies a time-domain period for the positioning session where a set of parameters associated with the at least one BWP is to remain constant to achieve a first positioning accuracy requirement. The UE either performs positioning measurements on one or more of the PRS resources during the positioning session or transmits on one or more of the SRS-P resources during the positioning session. The UE determines an active BWP transition during the time-domain period from a first BWP to a second BWP that is associated with one or more changes to the set of parameters.

    SYNCHRONIZATION SIGNAL BLOCK (SSB)-BASED POSITIONING MEASUREMENT SIGNALS

    公开(公告)号:US20190394747A1

    公开(公告)日:2019-12-26

    申请号:US16440758

    申请日:2019-06-13

    Abstract: Disclosed are techniques for utilizing synchronization signal blocks for positioning operations. In an aspect, a transmission point configures a set of synchronization signal blocks to be used as positioning measurement signals, each of the plurality of synchronization signal blocks comprising a primary synchronization signal, a secondary synchronization signal, and one or more physical broadcast channel signals, and transmits the set of synchronization signal blocks on a wireless downlink channel to enable a user device to perform a positioning measurement of at least one of the set of synchronization signal blocks. In an aspect, the user device receives, from the transmission point, the plurality of synchronization signal blocks on the wireless downlink channel, receives, from the transmission point, an indication of the set of synchronization signal blocks to be used as positioning measurement signals, and performs a positioning measurement of at least one of the set of synchronization signal blocks.

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