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Mobile terminal positioning method, base station and node

A technology for mobile terminals and positioning nodes, which is applied in the field of communication and can solve the problems of inability to locate mobile terminals and base stations to distinguish positioning signals.

Active Publication Date: 2019-10-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the nodes contained in a positioning area share the same cell ID, the base station cannot distinguish which node the received positioning signal from the mobile terminal is forwarded through according to the cell ID, that is, when the cell IDs are the same, the base station It is impossible to locate the mobile terminal based on the cell ID to distinguish the coverage area of ​​which node the mobile terminal belongs to
At present, there is no corresponding method to solve the mobile terminal positioning problem when the cell IDs of the nodes are the same

Method used

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  • Mobile terminal positioning method, base station and node
  • Mobile terminal positioning method, base station and node
  • Mobile terminal positioning method, base station and node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] figure 1 Shown is a flow chart of a mobile terminal positioning method according to an embodiment of the present invention, and the method is used in a base station. In this embodiment, the mobile terminal is positioned through uplink data. Such as figure 1 As shown, the method includes:

[0117] In step 101, each node is allocated a specified time period for receiving the uplink reference signal.

[0118] Step 102, receiving uplink reference signals received within a specified time period forwarded by each node.

[0119] In the embodiment of the present invention, after the node receives the uplink reference signal, it can forward the uplink reference signal within the received time period, or delay the forwarding, for example, receive it in the N time period, and forward it to the base station in the N time period , may also be delayed until the N+5th time period and forwarded to the base station.

[0120] The delay time for each node to delay forwarding the upli...

Embodiment 2

[0141] figure 2 Shown is a flowchart of a mobile terminal positioning method according to an embodiment of the present invention, and the method is used for a node. Such as figure 2 As shown, the method includes:

[0142] Step 201, receiving a designated time period allocated by a base station for receiving an uplink reference signal.

[0143] Step 202: Receive the uplink reference signal sent by the mobile terminal according to the specified time period for receiving the uplink reference signal.

[0144] Step 203, forwarding the uplink reference signal to the base station, so that the base station obtains the power of the uplink reference signal or the signal-to-noise ratio of the uplink reference signal, and selects the time period corresponding to the uplink reference signal with the largest power or the largest signal-to-noise ratio As a positioning time period, a corresponding positioning node is obtained according to the specified time period for receiving the uplin...

Embodiment 3

[0150] image 3 Shown is a flow chart of a mobile terminal positioning method according to an embodiment of the present invention, the method comprising:

[0151] In step 301, the base station assigns each node a specified time period for receiving the uplink reference signal, and sends a synchronization command to each node.

[0152] Step 302, the node synchronizes with the time of the base station according to the synchronization command.

[0153] Step 303, the base station sends an uplink signal configuration command and power control rules to the mobile terminal.

[0154] Step 304, the mobile terminal sends the uplink reference signal to all nodes according to the uplink signal configuration command and the power control rule, and keeps the power of the sent uplink reference signal consistent.

[0155] Step 305 , according to the specified time period for receiving the uplink reference signal, the node only receives and forwards the uplink reference signal broadcast by t...

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Abstract

An embodiment of the present invention provides a mobile terminal positioning method, a base station, and a node. The method includes: assigning each node a specified time period for receiving an uplink reference signal; Uplink reference signal; obtain the power of the uplink reference signal forwarded by each node or the signal-to-noise ratio of the uplink reference signal; select the time period corresponding to the uplink reference signal with the largest power or the largest signal-to-noise ratio as the positioning time period; according to the Obtain the corresponding positioning node according to the specified time period for receiving the uplink reference signal and the positioning time period; determine the position of the mobile terminal according to the position of the positioning node. The invention can solve the positioning problem of the mobile terminal when the cell IDs of the nodes are the same, and improves the positioning accuracy of the mobile terminal.

Description

technical field [0001] The invention relates to the communication field, in particular to a positioning method for a mobile terminal, a base station and a node. Background technique [0002] In recent years, the number of global mobile terminal users has grown rapidly, and the demand for positioning of mobile terminals is also increasing. The application scenarios of mobile terminal location services present a trend of diversification, such as logistics management, emergency rescue, monitoring, and crime tracking. [0003] At present, the commonly used positioning method in the mobile system is CID (Cell Identification, cell identification) positioning, also called COO (Cell of Origin, origin cell) positioning or CGI (Cell Global Identity, cell global identity) positioning, the main technical solution is The geographic location of the mobile terminal is characterized according to the base station to which the current cell of the mobile terminal belongs. According to the ce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00
CPCH04W64/00H04W56/0015H04W72/542H04B17/318H04B17/336H04L5/0048H04W24/10H04W52/16H04W52/325H04W72/1268
Inventor 崔杰李安俭戴喜增
Owner HUAWEI TECH CO LTD
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