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Positioning method, device and system, terminal, LMF entity and medium

A positioning method and terminal technology, which can be used in positioning, transmission systems, measuring devices, etc., and can solve problems such as low positioning accuracy

Active Publication Date: 2020-08-21
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a positioning method, device, system, terminal, LMF entity and medium to solve the problem of low positioning accuracy of UE-based OTDOA in the prior art

Method used

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  • Positioning method, device and system, terminal, LMF entity and medium
  • Positioning method, device and system, terminal, LMF entity and medium
  • Positioning method, device and system, terminal, LMF entity and medium

Examples

Experimental program
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Embodiment 1

[0081] figure 1 It is a process schematic diagram of a positioning method provided by an embodiment of the present invention, and the process includes the following steps:

[0082] S101: The terminal sends a positioning assistance data request message to an LMF entity, where the positioning assistance data request message includes first identification information of a beam reference signal detected by the terminal itself.

[0083] The positioning method provided by the embodiment of the present invention is applied to a terminal.

[0084] When the terminal needs to start the UE-based OTDOA positioning function, in order to obtain the positioning assistance data, it sends a request positioning assistance data message to the LMF entity. Since UE-based OTDOA positioning needs to obtain beam reference signals sent by multiple different base stations, the request positioning assistance data message contains the first identification information of beam reference signals sent by the...

Embodiment 2

[0096] In order to ensure the normal operation of the positioning function of the terminal, on the basis of the above-mentioned embodiments, in the embodiment of the present invention, before the terminal sends a request for positioning assistance data message to the local management function LMF entity, the method further includes:

[0097] Receive the location request capability message sent by the LMF entity;

[0098] Send a positioning capability provision message to the LMF entity, where the positioning capability provision message includes the positioning capability supported by the terminal.

[0099] At present, there are many positioning methods supported by the 3GPP protocol specification, such as UE-assistedOTDOA positioning and UE-basedOTDOA positioning. The positioning capability supported by the terminal of the LMF entity.

[0100] After receiving the request positioning capability message, the terminal determines the positioning capability it can support, carrie...

Embodiment 3

[0111] In order to make the positioning of the terminal more accurate, on the basis of the above-mentioned embodiments, in the embodiment of the present invention, the determination of the position information of the terminal according to the determined beam direction of each RSTD and each beam reference signal includes:

[0112] Determine the first reference position information of the terminal according to each RSTD and a preset RSTD positioning algorithm;

[0113] According to the beam direction of the beam reference signal of each second identification information, determine the arrival angle AOA of the base station sending the beam reference signal of the second identification information to the terminal, and based on a preset AOA positioning algorithm, determine the the second reference location information of the terminal;

[0114] The location information of the terminal is determined according to preset weight values ​​corresponding to the first reference location inf...

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Abstract

The invention discloses a positioning method, device and system, a terminal, an LMF entity and a medium, which are used for solving the problem of low UE-based OTDOA positioning precision in the priorart. The method comprises the steps that a terminal sends a positioning assistance data requesting message to a local management function (LMF) entity, wherein the positioning assistance data requesting message comprises first identification information of a beam reference signal detected by the terminal; receiving positioning assistance data which is sent by the LMF entity and contains beam direction information of a beam reference signal of second identification information, wherein the second identification information is identification information of a beam reference signal sent by a neighboring base station that can be detected by the terminal determined by the LMF entity according to the first identification information; and determining each RSTD of the beam reference signals of thefirst identification information and the second identification information, and determining position information of the terminal according to each determined RSTD and the beam direction of each beamreference signal.

Description

technical field [0001] The present invention mainly relates to the technical field of wireless communication, and in particular to a positioning method, device, system, terminal, LMF entity and medium. Background technique [0002] Downlink Observed Time Difference of Arrival (Observed Time Difference of Arrival, OTDOA) is a positioning method defined in the 3GPP protocol specification. The current OTDOA is mainly divided into UE-assisted OTDOA and UE-based OTDOA. The basic principle of UE-based OTDOA is: the user terminal (User Equipment, UE) measures the downlink positioning reference signal (Positioning Reference Signal, PRS) sent from multiple transmission points (Transmission Point, TP), and / or the downlink reference signal ( Downlink Reference Signals, DL-RS) to obtain the reference signal time difference measurement (Reference Signal Time Difference measurement, RSTD) arriving at the UE, and obtain the OTDOA assistance associated with the cell through the local manag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/02H04W4/02H04B7/06
CPCH04W64/006G01S5/10H04B7/0617H04L5/0048G01S5/0236G01S5/0252H04B7/06H04W4/02H04W64/00H04W16/28
Inventor 任斌达人李辉缪德山高雪媛
Owner DATANG MOBILE COMM EQUIP CO LTD
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