公开(公告)号：US10397893B2

公开(公告)日：2019-08-27

申请号：US15459254

申请日：2017-03-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Cui ,  Anjian Li ,  Xizeng Dai

IPC: H04W64/00 ,  H04B17/318 ,  H04B17/336 ,  H04L5/00 ,  H04W24/10 ,  H04W52/16 ,  H04W52/32 ,  H04W56/00 ,  H04W72/12

Abstract: A method is provided. The method includes allocating a specified time period for receiving an uplink reference signal to each node, receiving an uplink reference signal that is received in the specified time period and forwarded by each node, obtaining power or a signal-to-noise ratio of the uplink reference signal forwarded by each node, selecting a time period corresponding to an uplink reference signal with maximum power or a maximum signal-to-noise ratio as a positioning time period, obtaining a corresponding positioning node according to the positioning time period and the specified time period for receiving an uplink reference signal, and determining a location of the mobile terminal according to a location of the positioning node.

公开(公告)号：US10306408B2

公开(公告)日：2019-05-28

申请号：US15804200

申请日：2017-11-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Zhu ,  Jie Cui ,  Anjian Li ,  Jiantao Xue ,  Hong Li

IPC: H04W4/23 ,  H04W4/02 ,  H04W64/00 ,  H04W56/00 ,  G01S5/02 ,  G01S5/06

Abstract: Embodiments of the present invention provide a positioning method, a positioning server, and a positioning system. The positioning method includes: separately obtaining, by a positioning server, location coordinates of M positioning nodes; separately obtaining, by the positioning server, a reference signal time difference RSTD between an ith positioning node and an (i+1)th positioning node in the M positioning nodes and a jth mobile terminal in two mobile terminals; determining, by the positioning server, a relative RSTD according to the RSTD; and determining, by the positioning server, location coordinates of the two mobile terminals according to the relative RSTD and the location coordinates of the M positioning nodes.

公开(公告)号：US20190132816A1

公开(公告)日：2019-05-02

申请号：US16227900

申请日：2018-12-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiantao Xue ,  Houping Ren ,  Anjian Li

IPC: H04W64/00 ,  H04W48/20 ,  H04W8/14 ,  H04W48/16

CPC classification number: H04W64/003 ,  H04W8/14 ,  H04W48/16 ,  H04W48/20 ,  H04W64/00

Abstract: The present disclosure relates to the mobile communications field. In a positioning base station determining method, a positioning server receives a positioning request message from a terminal device; the positioning server obtains information about a candidate base station from a serving base station of the terminal device according to the positioning request message, where the information about a candidate base station indicates at least one base station; and the positioning server determines a positioning base station set according to the information about a candidate base station, where the positioning base station set includes a positioning base station configured to position the terminal device, and the positioning base station includes one or more of the at least one base station and/or the serving base station.

公开(公告)号：US10212688B2

公开(公告)日：2019-02-19

申请号：US15705025

申请日：2017-09-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dengkun Xiao ,  Jie Cui ,  Anjian Li ,  Jing Han ,  Yuan He ,  Tong Wu

IPC: H04W4/02 ,  H04W24/00 ,  H04W64/00 ,  G01S5/02 ,  G01S5/10

Abstract: Embodiments of the present invention provide a positioning method, a positioning server, a terminal and a base station. The positioning method includes: notifying a terminal of difference threshold information; receiving cell subset information that is determined by the terminal according to the difference threshold information, where the cell subset information is used to indicate a cell pair whose reference signal measured value exceeds the difference threshold, or the cell subset information is used to indicate a cell pair whose reference signal measured value does not exceed the difference threshold; determining a configuration of a PRS according to the cell subset information, and notifying the terminal of the configuration of the PRS; and receiving an RSTD that is obtained by the terminal through measurement according to the configuration of the PRS, and determining a location of the terminal according to the RSTD.

公开(公告)号：US10211966B2

公开(公告)日：2019-02-19

申请号：US15192672

申请日：2016-06-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jie Cui ,  Anjian Li ,  Jinhuan Xia ,  Xiaodong Yang

IPC: H04L5/14 ,  H04L5/00 ,  H04L5/16

Abstract: When a terminal switches from a downlink subframe to an adjacent uplink subframe, generating a first guard period, where that the terminal does not process any signal in the first guard period is defined, that is, the terminal neither receives downlink data nor sends an uplink signal in the first guard period, and therefore uncertainty of a terminal behavior during a downlink-to-uplink switching process of the terminal is avoided, and successful sending of the uplink subframe can be ensured; and when the terminal switches from an uplink subframe to a downlink subframe, generating a second guard period, where the second guard period overlaps the uplink subframe or the downlink subframe, and that the terminal does not process any signal in the second guard period is defined, and therefore uncertainty of a terminal behavior during an uplink-to-downlink switching process of the terminal is avoided.

公开(公告)号：US20180302260A1

公开(公告)日：2018-10-18

申请号：US16015964

申请日：2018-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qiming Li ,  Jiadi Liu ,  Jing Han ,  Anjian Li

IPC: H04L27/26 ,  H04W4/02 ,  H04B7/08 ,  H04W88/02 ,  H04L27/00 ,  H04W84/00

CPC classification number: H04L27/2655 ,  H04B7/08 ,  H04L25/02 ,  H04L25/0222 ,  H04L27/2649 ,  H04L27/2657 ,  H04L27/2685 ,  H04L27/2695 ,  H04L2027/0026 ,  H04L2027/004 ,  H04W4/027 ,  H04W84/005 ,  H04W88/02

Abstract: A data demodulation method, apparatus, and system are presented. The method includes obtaining notification information indicating that user equipment (UE) is in a high-speed moving state; performing time-frequency synchronization processing on first downlink data according to the notification information to obtain second downlink data; and performing demodulation processing on the second downlink data to obtain third downlink data, where in the demodulation processing, inter-transmission time intervals (TTIs) filtering for a channel estimation is not performed, or a filtering coefficient as a weight of a current TTI for a channel estimation is greater than a filtering coefficient as a weight of a TTI that is at the time when the UE is in the non-high-speed moving state for a channel estimation. The demodulation method is applicable to a high-speed scenario for improving a downlink data throughput of the UE.

公开(公告)号：US20180176837A1

公开(公告)日：2018-06-21

申请号：US15895820

申请日：2018-02-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Dengkun Xiao ,  Jing Han ,  Anjian Li ,  Yuan He ,  Tong Wu ,  Jie Cui ,  Liji Wu

IPC: H04W36/00 ,  H04B17/336 ,  H04L5/00 ,  H04W24/10 ,  H04W36/30 ,  H04B17/318 ,  H04B7/024 ,  H04W52/02 ,  H04W48/20

CPC classification number: H04W36/0088 ,  H04B7/024 ,  H04B17/318 ,  H04B17/336 ,  H04L5/001 ,  H04L5/0032 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/0073 ,  H04W24/10 ,  H04W36/30 ,  H04W48/20 ,  H04W52/0209 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/24

Abstract: Embodiments of the present disclosure provide a method and an apparatus for enhancing measurement in a wireless communication system. The method includes: obtaining, according to a measurement period or triggered by an event, a measurement amount, where the measurement amount includes a ratio of a valid signal based on a reference signal to a non-valid signal based on the reference signal measured based on the reference signal; reporting the measurement amount to a base station; or performing cell selection or cell reselection according to the measurement amount.

公开(公告)号：US09936415B2

公开(公告)日：2018-04-03

申请号：US15481576

申请日：2017-04-07

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jing Han ,  Jie Cui ,  Anjian Li ,  Hong Li

IPC: H04W24/00 ,  H04W24/10 ,  H04W4/02

CPC classification number: H04W24/10 ,  H04W4/02 ,  H04W64/00

Abstract: A drive test information exchange method and apparatus are disclosed. The method includes: receiving, by a positioning controller, a positioning request message sent by user equipment UE; sending, by the positioning controller, positioning assistance information to the UE after the positioning controller receives the positioning request message sent by the UE; receiving, by the positioning controller, a measurement result sent by the UE; obtaining, by the positioning controller, positioning information according to the measurement result; and sending, by the positioning controller, drive test information to a drive test unit according to the indication information. The method and the apparatus of the present invention may be used to enable a process of obtaining drive test information by a drive test unit to be simpler, and a delay to be shorter.

公开(公告)号：US20180089566A1

公开(公告)日：2018-03-29

申请号：US15818979

申请日：2017-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anjian Li ,  Jie Cui ,  Jing Han ,  Hong Li

IPC: G06N3/08 ,  H04W64/00

CPC classification number: G06N3/08 ,  G01S5/0252 ,  H04W64/00

Abstract: Embodiments of the present invention provide a method and an apparatus for improving positioning performance of an artificial neural network. The method includes: establishing an initial ANN; optimizing the initial ANN by using a PSO algorithm, to obtain an optimized initial ANN; training the optimized initial ANN to obtain a trained ANN. According to a positioning method and apparatus provided in the embodiments of the present invention, when an ANN is used for positioning, positioning performance is improved by using a PSO algorithm to optimize a weight and an offset of each neural element in the ANN.

公开(公告)号：US20180063810A1

公开(公告)日：2018-03-01

申请号：US15795631

申请日：2017-10-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hong LI ,  Jie Cui ,  Anjian Li ,  Jing Han

IPC: H04W64/00 ,  H04W4/02 ,  H04W24/10

CPC classification number: H04W64/006 ,  G01S5/02 ,  G01S5/0252 ,  G01S5/0263 ,  H04W4/026 ,  H04W4/027 ,  H04W4/029 ,  H04W24/10 ,  H04W64/00

Abstract: The present invention provides a positioning parameter exchange method and system, and an apparatus. An SPC receives a UE positioning information query message sent by an SRC, where the UE positioning information query message includes an identifier of UE and a positioning parameter; the SPC obtains positioning information of the UE; and the SPC sends a UE positioning information query response message to the SRC. Therefore, the SPC and the SRC exchanges a parameter required for positioning, so as to avoid triggering interactions between multiple nodes on a core network side, and reduce a positioning delay.