Channel state information reporting method and device

    公开(公告)号:US12081299B2

    公开(公告)日:2024-09-03

    申请号:US17441677

    申请日:2019-12-24

    CPC classification number: H04B7/0626 H04B7/0456 H04B7/0658

    Abstract: Disclosed are a channel state information reporting method and device, relating to the field of wireless communications and used for solving the problem of no corresponding CSI reporting method being provided at present regarding a Rel-16 codebook structure. The method of the present application includes a terminal determining, according to codebook parameter information, codebook indication information corresponding to a data transmission layer; and the terminal sending channel state information (CSI) including the codebook indication information to a network side device, and the codebook indication information includes a part or all of the following: beam information for determining a precoding matrix orthogonal combination beam, base vector information for determining a precoding matrix compression base vector, and nonzero coefficient indication information for determining a precoding matrix compression coefficient.

    Locating method for uplink time difference of arrival, and apparatus thereof

    公开(公告)号:US11917571B2

    公开(公告)日:2024-02-27

    申请号:US17284383

    申请日:2019-09-30

    CPC classification number: H04W56/006 H04W16/28 H04W24/10 H04W56/005

    Abstract: Disclosed in the present application are a locating method for an uplink time difference of arrival, and an apparatus thereof. The method comprises: a locating server transmits a UTDOA information request message to a serving base station of a target terminal; the locating server receives a UTDOA information response message sent by the serving base station, wherein the UTDOA information response message carries configuration information of a locating reference signal and beam information of a reference signal related the a target terminal; the locating server transmits a measurement information request message to a location measurement unit, wherein the measurement information request message carries auxiliary locating information, the auxiliary locating information comprises the beam information of the reference signal related to the target terminal, or comprises relative information between a transmitting beam of the locating reference signal determined according to the beam information of the reference signal related to the target terminal and a received beam used by the location measurement unit, so that the location measurement unit and the locating server can assist in locating by using the beam information.

    Positioning method and apparatus
    14.
    发明授权

    公开(公告)号:US11452065B2

    公开(公告)日:2022-09-20

    申请号:US15734028

    申请日:2019-05-29

    Abstract: Disclosed by the present application are a positioning method and apparatus, which are used to improve indoor positioning performance and precision without occupying a large amount of system resources. At a positioning server side, a positioning method provided by an embodiment of the present application comprises: acquiring a positioning capability supported by a user equipment (UE), and determining, according to the positioning capability, that the UE may obtain a positioning measurement value by means of detecting a positioning reference signal ioPRS that is used for indoor/outdoor positioning; acquiring positioning auxiliary data comprising ioPRS configuration data, and sending the positioning auxiliary data to the UE; acquiring the positioning measurement value that is provided by the UE and that is acquired on the basis of the ioPRS, and using the positioning measurement value to position the UE.

    Measurement method and device
    15.
    发明授权

    公开(公告)号:US11201715B2

    公开(公告)日:2021-12-14

    申请号:US17275660

    申请日:2019-09-04

    Abstract: The present application relates to the field of wireless communications, in particular, to a measurement method and device, used for solving the problem in the art that there is no specific solution for a terminal to perform OTDOA measurement in a NR system. In embodiments of the present application, a terminal determines a detected first beam reference signal, and sends a request message to an LMF entity, receive first positioning assistance data comprising second beam information of a second beam reference signal sent by the LMF entity, measure the second beam reference signal of an adjacent base station according to the first positioning assistance data. Therefore, it is ensured that the LMF entity can accurately provide the positioning assistance data to a UE according to first beam information of the first beam reference signal, the time and power consumption of the terminal for searching the second beam reference signal are reduced, and the system performance is further improved.

    Method and device for feeding back channel state information, and method and device for determining pre-coding matrix

    公开(公告)号:US11190257B2

    公开(公告)日:2021-11-30

    申请号:US16973056

    申请日:2019-05-30

    Abstract: Disclosed are a method and device for feeding back channel state information, and a method and device for determining a pre-coding matrix. In the present application, a terminal determines N orthogonal vector groups, one of the orthogonal vector groups being used for constructing pre-coding corresponding to M layers in a pre-coding matrix; the terminal determines, according to beams in the N orthogonal vector groups, linear combination coefficients for constructing the pre-coding matrix, the linear combination coefficients includes linear combination coefficients corresponding to the layers in the pre-coding matrix; the terminal feeds back channel state information to a base station, the channel state information includes indication information of the N orthogonal vector groups and linear combination coefficients, in the determined linear combination coefficients of the pre-coding matrix, corresponding to Y layers, wherein Y is less than or equal to the number of layers of the pre-coding matrix.

    Signal measurement method, terminal, and network side device

    公开(公告)号:US12231931B2

    公开(公告)日:2025-02-18

    申请号:US17764217

    申请日:2020-08-31

    Abstract: A method for signal measuring, a terminal and a network-side device are provided. The method is applied to a terminal, and the method includes: receiving a measurement-configuration information sent by a network-side device, wherein the measurement-configuration information contains at least a reported group quantity of a measured value of a target measurement parameter, and the target measurement parameter refers to a parameter of a target measurement signal; according to the measurement-configuration information, measuring the target measurement parameter; and sending the measured value of the target measurement parameter to the network-side device. The embodiments of the method solve the problem that, in the conventional 5G NR system, the configuration information for reference signals has not been complete.

    Positioning method and device
    19.
    发明授权

    公开(公告)号:US11940549B2

    公开(公告)日:2024-03-26

    申请号:US17422200

    申请日:2019-12-16

    CPC classification number: G01S5/10 G01S5/021 G01S5/0284 H04W64/003

    Abstract: A positioning method and device used for solving the problems of the existing method for determining an integer ambiguity being relatively difficult and relatively time-consuming. During positioning, the method includes a receiving device determining a virtual phase measured value according to at least two received C-PRS signals (600); determining a TOA measured value according to a received PRS signal (601); determining a virtual integer ambiguity according to the TOA measured value and the virtual phase measured value (602); and finally, determining the location of the receiving device according to the virtual integer ambiguity (603). An integer ambiguity search space is reduced, and the integer ambiguity is determined faster, thus improving the efficiency of determining the location of the receiving device.

    Channel state information feedback method and device

    公开(公告)号:US11936455B2

    公开(公告)日:2024-03-19

    申请号:US17598834

    申请日:2020-02-26

    CPC classification number: H04B7/0626 H04B7/0469

    Abstract: A channel state information (CSI) feedback method and device are disclosed. In the method, a terminal determines an orthogonal beam group and pre-coding matrix information according to codebook parameter information, where a same beam in the orthogonal beam group has same specified coefficients in first and second polarization directions, each of the specified coefficients comprises an amplitude coefficient and/or a phase coefficient; the pre-coding matrix information includes the specified coefficients and adjustment factors, and the adjustment factors are used together with the specified coefficients to determine linear combination coefficients except the specified coefficients in a linear combination coefficient set; and the pre-coding matrix information is sent to a network-side device.

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