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Single-station user terminal locating method and system

A technology of user terminal and positioning method, which is applied in the field of communication, can solve the problems of inaccurate positioning of traditional positioning methods, and achieve the effect of accurate positioning

Active Publication Date: 2013-05-08
SHANGHAI DATANG MOBILE COMM EQUIP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a single base station user terminal positioning method and system to solve the problem of inaccurate positioning in traditional positioning methods caused by multipath or indirect waves

Method used

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  • Single-station user terminal locating method and system
  • Single-station user terminal locating method and system
  • Single-station user terminal locating method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] image 3 Shown is a schematic diagram of signal propagation of the UE in two positions that are relatively close to each other, represented by image 3 It can be seen that when the UE is in two different but relatively close positions, the TA and the AOA will also be relatively close. Conversely, in most cases, if the TA and the AOA are relatively close, the two UE positions are also relatively close. If one of the positions is known, the other can be inferred.

[0045] Figure 4 Shown is a flow chart of a single base station user terminal positioning method proposed in this embodiment based on the above principles, and the method includes:

[0046] S110: Obtain location information of multiple known points in the cell, where the location information includes AOA, time advance, longitude, and latitude information;

[0047] S120: Obtain AOA and TA information of the point to be located;

[0048] S130: Find at least one known point whose AOA and TA are closest to the ...

Embodiment 2

[0052] Figure 5 Shown is a flow chart of a single base station user terminal positioning method in the TD-SCDMA system recorded in this embodiment, and the method includes:

[0053] S210: Measure the position information of multiple points in the cell to form multiple known points, and the multiple known points are evenly distributed in the cell;

[0054] S220: Obtain location information of multiple known points in the cell, where the location information includes AOA, TA, longitude and latitude information;

[0055] S230: Obtain the AOA and TA of the point to be located;

[0056] S240: Calculate the difference between the AOA of all known points and the AOA of the point to be located;

[0057] S250: Find a known point where the AOA difference is within a set range;

[0058] S260: Calculate the distance correlation number between the found known point and the to-be-located point according to the TA and AOA of the found known point and the to-be-located point;

[0059] S2...

Embodiment 3

[0094] Image 6 Shown is a flow chart of a single base station user terminal positioning method described in this embodiment, the method includes:

[0095] S310: Measure the position information of multiple points in the cell to form multiple known points with known position information, and the multiple known points are evenly distributed in the cell;

[0096] S320: Obtain location information of multiple known points in the cell, where the location information includes AOA, TA, longitude and latitude information;

[0097] S330: Obtain AOA and TA information of the point to be located;

[0098] S340: Calculate the difference between the AOA of all known points and the AOA of the point to be located;

[0099] S350: Find a known point where the AOA difference is within a set range;

[0100] S360: Calculate the distance correlation number between the known point found and the point to be located according to the TA and AOA of the found known point and the point to be located;...

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Abstract

The invention discloses a single-station user terminal locating method and a system. The method comprises that position information of a plurality of known points in a community is obtained, the position information comprises a signal reaching angle, time advance and longitude and latitude information; information of the signal reaching angle and the time advance of a point to be located is obtained; at least one known point with the signal reaching angle and the time advance most approximate to the signal reaching angle and the time advance of the point to be located is found according to the position information of the known point; and the longitude and latitude information of the point to be located is calculated according to the longitude and latitude information of at least one found known point. According to the single-station user terminal locating method, at least one known point near to the point to be located is found, and longitude and latitude of the point to be located are calculated through the longitude and latitude of at least one known point. The single-station user terminal locating method can solve the problem that a traditional locating method is not accurate caused by multi-diameter or non-direct waves, and can locate accurately under the condition of many obstacles including buildings and the like.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a single base station user terminal positioning method and system. Background technique [0002] In the prior art, the mobile positioning service of a single base station is generally implemented according to the signal angle of arrival (Angle Of Arrival, AOA) and timing advance (Timing Advance, TA) method. like figure 1 As shown, the TA measured on the terminal side is reported to the network side in the measurement report, and the base station (NodeB) uses the smart antenna to determine the incoming wave direction according to the AOA, and the base station itself will also measure the deviation of the TA, thereby AOA The deviation information from TA is also reported to the radio network controller (Radio Network Controller, RNC) (RNC obtains the value of this AOA through the Iub interface protocol - the base station application part (NodeB Application Part, NBA...

Claims

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Application Information

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IPC IPC(8): H04W64/00
Inventor 余再跃李东宇
Owner SHANGHAI DATANG MOBILE COMM EQUIP
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