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Method and device for detecting terminal position

A technology for detecting terminals and terminals, applied in wireless communication, electrical components, etc., can solve the problem of low position accuracy, and achieve the effect of accurate detection results

Active Publication Date: 2016-11-30
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the unbalanced fading of the uplink and downlink channels, there is a problem that the base station determines the location of the terminal according to the uplink signal of the terminal with low accuracy.

Method used

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  • Method and device for detecting terminal position
  • Method and device for detecting terminal position
  • Method and device for detecting terminal position

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] For the case where multiple cells share the same frequency resources, adjacent sectors or virtual sectors are used to jointly send data for users at the junction, in order to determine the location of the terminal, this embodiment provides a method for detecting the location of the terminal, see figure 1 , the method flow includes:

[0058] Step 101: use one of the plurality of beams existing in the cell to send data to the terminal to be detected in each preset time period, and receive downlink information returned by the terminal to be detected according to the data sent by each beam;

[0059] Further, before using one of the plurality of beams existing in the cell to send data to the terminal to be detected in each preset time period, it also includes:

[0060] The uplink signal of each terminal in the cell is retrieved, and the terminal whose power difference corresponding to the uplink signal is smaller than a preset threshold is determined as the terminal to be de...

Embodiment 2

[0079] An embodiment of the present invention provides a method for detecting the location of a terminal. In combination with the content of the first embodiment above, refer to figure 2 , the method flow provided by this embodiment includes:

[0080] Step 201: Retrieve the uplink signal of each terminal in the cell, and determine the terminal whose power difference corresponding to the uplink signal is smaller than a preset threshold as the terminal to be detected;

[0081] For this step, assuming that multiple beams in the cell can retrieve the uplink signal of a certain terminal in the cell at the same time, compare the received power of each beam receiving the uplink signal of the terminal, if each beam If the received power difference of the uplink signal of the terminal is less than the preset threshold, the terminal is determined as the terminal to be detected, and the position of the terminal to be detected is determined accurately according to the following steps 202...

Embodiment 3

[0125] An embodiment of the present invention provides a device for detecting the location of a terminal, which is used to execute the methods provided in the above-mentioned embodiment and embodiment 2, see image 3 , the device consists of:

[0126]A sending module 31, configured to use one of the multiple beams existing in the cell to send data to the terminal to be detected during each preset time period;

[0127] The receiving module 32 is configured to receive the downlink information returned by the terminal to be detected according to the data sent by each beam;

[0128] The obtaining module 33 is used to obtain the MCS correction value of the terminal to be detected in each preset time period according to the downlink information returned by the terminal to be detected received by the receiving module 32;

[0129] The determination module 34 is configured to determine the position of the terminal to be detected according to the MCS correction value of the terminal to...

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Abstract

Embodiments of the present invention provide a method and device for detecting the location of a terminal, and relate to the technical field of wireless communication. The method includes: using one of the plurality of beams in the cell to send data to the terminal to be detected in each preset time period, and receiving the downlink information returned by the terminal to be detected according to the data sent by each beam; according to receiving According to the downlink information returned by the terminal to be detected, the MCS correction value of the coding and modulation mode of the terminal to be detected in each preset time period is obtained; the position of the terminal to be detected is determined according to the MCS correction value of the terminal to be detected in each preset time period. The present invention sends data to the terminal to be detected by using one of the multiple beams in the cell in each preset time period, and obtains the MCS correction value of the terminal to be detected in each preset time period according to the returned downlink information, The position of the terminal to be detected is determined according to the MCS correction value, and the downlink information is used to detect the position of the terminal, so the detection result is more accurate.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for detecting the position of a terminal. Background technique [0002] With the rapid development of wireless communication technologies, the number of terminals has increased sharply, and the number of base stations has also shown a trend of substantial growth. The coverage area of ​​a base station is usually called a cell. Under the current condition of limited frequency resources, many cells share the same frequency resources. Since the same frequency resources are used, co-frequency interference will occur between different cells. Usually, a cell is divided into multiple sectors in order to suppress co-channel interference, but this will result in inter-sector interference for terminals located at sector borders. In order for the terminal to receive data accurately, for the terminal at the sector junction, the adjacent sectors joi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W64/00
Inventor 杨晶沈乐乐
Owner HUAWEI TECH CO LTD
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