INDICATION OF TIME SYNCHRONIZATION REFERENCE FOR SIDELINK-BASED TIME DIFFERENCE POSITIONING TECHNIQUE

    公开(公告)号:US20250056437A1

    公开(公告)日:2025-02-13

    申请号:US18797526

    申请日:2024-08-08

    Abstract: Embodiments of the invention provide at least for receiving information comprising at least one of a priority of a time synchronization reference (SyncRef) for sidelink data communications or a request of using a SyncRef for sidelink positioning; and determining, based on at least the information, the SyncRef for a sidelink positioning reference signal (PRS) transmission timing, a sidelink PRS reception; and performing at least one sidelink positioning measurement for one or more sidelink PRSs or transmitting information of one or more sidelink PRSs based on the determined SyncRef. Further, determining information comprising at least one of a priority of a SyncRef for sidelink data communications or a request of using a SyncRef for sidelink positioning; and sending towards a network device the configuration for performing at least one sidelink positioning measurement for one or more sidelink PRSs or transmitting one or more sidelink PRSs based on a determined SyncRef.

    INDICATING TRANSMISSION TIMING CHANGES

    公开(公告)号:US20240406916A1

    公开(公告)日:2024-12-05

    申请号:US18697147

    申请日:2022-08-29

    Abstract: Disclosed is a method comprising receiving one or more first reference signals; transmitting one or more second reference signals; receiving a message comprising at least a first vector, wherein the first vector comprises one or more values indicating one or more transmission timing changes associated with one or more transmission occasions of the one or more first reference signals within a time window; determining one or more positioning measurement values based at least partly on the one or more first reference signals and the message; determining time difference information between a reception time of the one or more first reference signals and a transmission time of the one or more second reference signals; and transmitting a report indicating the one or more positioning measurement values and the time difference information.

    GENERATION OF SIDELINK POSITIONING REFERENCE SIGNAL RESOURCE SEQUENCE

    公开(公告)号:US20240276428A1

    公开(公告)日:2024-08-15

    申请号:US18438971

    申请日:2024-02-12

    CPC classification number: H04W64/00 H04L5/0051 H04W92/18

    Abstract: There is provided an apparatus comprising: at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the apparatus, which is configured to perform sidelink positioning with another apparatus, at least to perform: transmitting, to the other apparatus, an indication that a sidelink positioning reference signal, SL PRS, resource transmission, which the apparatus is configured to transmit, comprises at least one de-modulation reference signal, DMRS, symbol; and generating a sequence of a SL PRS resource transmission comprising: a SL PRS sequence; and a DMRS sequence comprising at least one DMRS symbol; and transmitting the sequence of the SL PRS resource transmission at least to the other apparatus.

    NON-STATIONARY CARRIER-PHASED POSITIONING

    公开(公告)号:US20250113325A1

    公开(公告)日:2025-04-03

    申请号:US18374551

    申请日:2023-09-28

    Abstract: Systems, methods, apparatuses, and computer program products for non-stationary carrier-phased positioning (CPP). A method may include receiving an indication to transmit a sounding reference signal or a carrier phase positioning measurement. The indication may include at least a phase pre-compensation on the sounding reference signal transmission or a correction of the carrier phase positioning measurement based at least on a Doppler shift. The method may also include performing, at a user equipment, the phase pre-compensation for the sounding reference signal transmission, or the correction of the carrier phase positioning measurement. The method may further include transmitting, by the user equipment, the sounding reference signal with the phase pre-compensation or the carrier phase positioning measurement.

    METHOD FOR SIDELINK POSITIONING REFERENCE SIGNAL MEASUREMENT COMBINING ACROSS SIDELINK POSITIONING REFERENCE SIGNAL RESOURCES

    公开(公告)号:US20240389058A1

    公开(公告)日:2024-11-21

    申请号:US18663887

    申请日:2024-05-14

    Abstract: Systems, methods, apparatuses, and computer program products for combining SL PRS measurements across SL PRS resources. One method may include receiving, from a user equipment, at least one indication indicating at least one sidelink positioning reference signal resource that is combinable; determining, based on the at least one indication, a plurality of combinable sidelink positioning reference signal resources; performing at least one sidelink positioning measurement utilizing the plurality of combinable sidelink positioning reference signal resources; and transmitting, to the user equipment, a report comprising the at least one sidelink positioning measurement and at least one of the following: at least one used sidelink positioning reference signal resource indication or at least one slot index associated with the sidelink positioning measurement.

    COMB-LEVEL SENSING FOR SIDELINK POSITIONING REFERENCE SIGNAL RESOURCE SELECTION

    公开(公告)号:US20240235778A1

    公开(公告)日:2024-07-11

    申请号:US18617808

    申请日:2024-03-27

    CPC classification number: H04L5/0051 H04W24/08

    Abstract: A method includes obtaining a first power measurement associated with resource blocks (RBs) being utilized by a terminal device (TD). The method includes determining whether the first power measurement satisfies a first threshold. The method includes, upon determining that the first power measurement satisfies the first threshold, transmitting, to a target TD, a positioning reference signal (PRS). The method includes, determining whether the first power measurement does not satisfy the first threshold and, in response, determining a set of comb parameters. The method includes obtaining, based on the set of comb parameters, a second power measurement associated with resource elements (REs) related to the RBs. The method includes determining whether the second power measurement satisfies a second threshold. The method includes, upon determining that the second power measurement satisfies the second threshold, transmitting, based on the set of comb parameters, the PRS to the target TD.

    METHODS, APPARATUSES, AND COMPUTER PROGRAM PRODUCTS FOR VALID REPORTING OF TIMING MEASUREMENTS FOR NEW RADIO CARRIER PHASE POSITIONING

    公开(公告)号:US20250151015A1

    公开(公告)日:2025-05-08

    申请号:US18933812

    申请日:2024-10-31

    Abstract: A method, apparatus and computer program product are provided for aligning the reporting of timing measurements and corresponding carrier phase (CP) measurements to avoid CP measurement error due to stale timing measurement information. In the context of a method, the method includes receiving, at a user equipment (UE), a request to maintain time separation between respective timestamps of carrier phase (CP) measurements and timing measurements within a predefined timing separation threshold. The method further includes generating, at the UE, at least one DL CP measurement associated with at least one timestamp, and at least one DL timing measurement associated with at least one DL timing measurement timestamp based on the predefined timing separation threshold, wherein a timing separation between the at least one timestamp and the at least one DL timing measurement timestamp is within the predefined timing separation threshold.

    METHODS AND APPARATUS FOR MITIGATING MEASUREMENT ERRORS FOR CARRIER PHASE POSITIONING DUE TO HARDWARE IMPAIRMENTS

    公开(公告)号:US20250113360A1

    公开(公告)日:2025-04-03

    申请号:US18821403

    申请日:2024-08-30

    Abstract: Techniques are provided for mitigating measurement errors for carrier phase positioning due to hardware impairments. In the context of a method performed by user equipment, the method includes causing transmission of a message to request a gNB to provide at least one sounding reference signal (UL SRS) configuration satisfying a phase error less than a threshold value associated with a UE transmission phase error group identifier (UE Tx PEG ID). The method also includes receiving at least one sounding reference signal (UL SRS) configuration in response to the request. The method further includes causing SRS transmission using UL SRS resources based upon the UL SRS configuration provided by the gNB. Corresponding methods, apparatus and computer-readable storage mediums are provided for location management function (LMF) and gNB for uplink and downlink configurations.

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