Localization estimation for non-terrestrial networks

    公开(公告)号:US11982757B2

    公开(公告)日:2024-05-14

    申请号:US17309732

    申请日:2019-02-07

    CPC classification number: G01S5/0258 G01S5/0036 G01S5/0249 G01S5/06 G01S5/14

    Abstract: It is provided a method, comprising measuring, during a period, a first time of arrival (TOA) of a first signal from a first satellite, a second TOA of a second signal from a second satellite, and a third TOA of a third signal from a third satellite; reporting, after the period has elapsed, the first TOA along with the first cell identifier and a first parameter enabling to derive a transmit time of the first signal, the second TOA along with the second cell identifier and a second parameter enabling to derive a transmit time of the second signal, and the third TOA along with the third cell identifier and a third parameter enabling to derive a transmit time of the third signal, wherein the first TOA is measured within a set first interval in the period; the second TOA is measured within a set second interval in the period; the second interval does not overlap the first interval.

    Timing advance signalling
    3.
    发明授权

    公开(公告)号:US11871370B2

    公开(公告)日:2024-01-09

    申请号:US17217168

    申请日:2021-03-30

    CPC classification number: H04W56/0045 H04W56/0005 H04W84/06

    Abstract: A client device, a network node device, methods and computer programs are disclosed. A client device may comprise at least one processor and at least one memory including computer program code. The at least one memory and the computer program code may be configured to, with the at least one processor, cause the client device to receive a timing advance configuration message from a network node device, wherein the timing advance configuration message comprises a plurality of timing advance commands; perform a plurality of consecutive uplink transmissions to the network node device; and apply the plurality of timing advance commands between the plurality of consecutive uplink transmissions.

    Dynamic cell-specific delay for timing scaling in a non-terrestrial network (NTN)

    公开(公告)号:US11616568B2

    公开(公告)日:2023-03-28

    申请号:US17168901

    申请日:2021-02-05

    Abstract: Systems, methods, apparatuses, and computer program products for dynamic cell-specific delay for timing scaling in a non-terrestrial network (NTN). For example, certain embodiments may utilize a cell-common delay composed of FL and part of SL (until a cell-specific reference surface). A network node (e.g., a gNB) may calculate the cell-common delay as a function of time (T_c(t)) and may provide this function to the UEs (the satellite path may beis deterministic). The function of time may be a combination of two functions representing the FL and SL. The function can may be broadcasted in a system information block (SIB) or transmitted directly to the UE through radio resource control (RRC) signaling when it becomes active, is handed over, and/or regularly updated.

    LOCALIZATION ESTIMATION FOR NON-TERRESTRIAL NETWORKS

    公开(公告)号:US20220018927A1

    公开(公告)日:2022-01-20

    申请号:US17309732

    申请日:2019-02-07

    Abstract: It is provided a method, comprising measuring, during a period, a first time of arrival (TOA) of a first signal from a first satellite, a second TOA of a second signal from a second satellite, and a third TOA of a third signal from a third satellite; reporting, after the period has elapsed, the first TOA along with the first cell identifier and a first parameter enabling to derive a transmit time of the first signal, the second TOA along with the second cell identifier and a second parameter enabling to derive a transmit time of the second signal, and the third TOA along with the third cell identifier and a third parameter enabling to derive a transmit time of the third signal, wherein the first TOA is measured within a set first interval in the period; the second TOA is measured within a set second interval in the period; the second interval does not overlap the first interval.

    Stationarity-based UE power saving

    公开(公告)号:US11968625B2

    公开(公告)日:2024-04-23

    申请号:US17430751

    申请日:2019-02-14

    CPC classification number: H04W52/0254 H04W24/08

    Abstract: There are provided measures for enabling/realizing stationarity-based UE power saving, specifically network-assisted power saving at a terminal entity based on local stationarity monitoring and autonomous power saving mode switching. Such measures exemplarily include that a terminal entity operates in a normal power mode, including performing normal radio environment related measurements (such as regular radio resource management measurements and/or cell search measurements) and monitoring a stationarity condition with a local procedure and/or equipment, switches from the normal power mode to a power saving mode, if the locally monitored stationarity condition is satisfied, and operates in the power saving mode, including performing relaxed radio environment related measurements (such as relaxed radio resource management measurements and/or cell search measurements).

    UE Location Validation for PUR in LEO Networks

    公开(公告)号:US20220295225A1

    公开(公告)日:2022-09-15

    申请号:US17196260

    申请日:2021-03-09

    Abstract: A method including receiving, at a user equipment, one or more location related information, where the location related information comprises information based upon location related to one or more satellite; determining, by the user equipment, timing advance, where the determining is at least partially based upon the location related information; determining, by the user equipment, to perform a preconfigured uplink resource transmission; and performing, based at least partially upon the determined timing advance, the preconfigured uplink resource transmission.

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