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Method and device for acquiring movement speed of user equipment

A user equipment and moving speed technology, which is applied in the directions of location information-based services, transmission monitoring, electrical components, etc., can solve the problem that the moving speed of user equipment cannot be obtained, complex actual channel scenarios cannot be applied, and actual channel autocorrelation cannot be obtained. functions, etc.

Inactive Publication Date: 2013-09-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The methods provided by the prior art can only be used in the Rayleigh channel scenario or in the approximate Rayleigh channel scenario, but due to the complex actual channel scenario, for example, the autocorrelation function of the actual channel cannot be obtained in the ITU scenario of the International Telecommunication Union , it is impossible to obtain the mobile speed of the user equipment through the autocorrelation function of the channel, so the method provided in the prior art cannot be applied in complex actual channel scenarios

Method used

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  • Method and device for acquiring movement speed of user equipment
  • Method and device for acquiring movement speed of user equipment

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Embodiment 1

[0033] An embodiment of the present invention provides a method for acquiring the moving speed of a user equipment, such as figure 1 As shown, the method includes:

[0034] 101. Acquire a first distance and a second distance between a user equipment and a first measurement base station and a second measurement base station respectively.

[0035] Wherein, the obtaining of the first distance and the second distance between the user equipment and the first measurement base station and the second measurement base station respectively may be implemented in the following manner, specifically including:

[0036] Acquiring distance calculation parameters respectively corresponding to the first measurement base station and the second measurement base station, the distance calculation parameters including the measurement base station antenna height and the path loss or timing advance (TA, Timing Advance) between the measurement base station antenna and the user equipment.

[0037] Calc...

Embodiment 2

[0055] The embodiment of the present invention provides a method for acquiring the moving speed of the user equipment, which can be specifically applied in the following figure 2 In the base station deployment scenario shown, such as image 3 As shown, the method includes:

[0056] 201. Measure signal strengths of base stations, where the base stations are all base stations eNB1, eNB2, and eNB3 from which the user equipment can detect signals at point A.

[0057] 202. Select two base stations with the highest signal strength from the base stations as the first base station eNB1 and the second base station eNB2.

[0058] 203. Select a base station eNB3 from base stations adjacent to both the first base station and the second base station as the third base station, and select any one of the first base station and the second base station, and the third base station The base station serves as the first measurement base station and the second measurement base station. in such a...

Embodiment 3

[0112] An embodiment of the present invention provides an apparatus for acquiring a moving speed of a user equipment, such as Figure 8 As shown, the device includes: a first acquisition unit 51 , a second acquisition unit 52 , a first calculation unit 53 , and a second calculation unit 54 .

[0113] The first obtaining unit 51 is configured to obtain a first distance and a second distance between the user equipment and the first measurement base station and the second measurement base station respectively.

[0114] The second obtaining unit 52 is configured to obtain a third distance and a fourth distance between the user equipment and the first measurement base station and the second measurement base station respectively after the first time interval passes.

[0115] The first calculation unit 53 is configured to obtain the first distance and the second distance acquired by the first acquisition unit 51 according to the distance between the first measurement base station and...

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Abstract

The invention discloses a method and device for acquiring movement speed of user equipment, and relates to the field of wireless communication. By the adoption of the method and device, the movement speed of the user equipment can be acquired in different channel scenes. The method for acquiring the movement speed of the user equipment includes the steps that a first distance and a second distance respectively between the user equipment and a first measuring base station and between the user equipment and a second measuring base station are acquired; after a first time interval, a third distance and a fourth distance respectively between the user equipment and the first measuring base station and between the user equipment and the second measuring base station are acquired; plane geometric calculation is conduced according to the distance between the first measuring base station and the second measuring base station, the first distance, the second distance, the third distance and the fourth distance to obtain a movement distance of the user equipment; calculation is conducted according the first time interval and the movement distance to obtain the movement speed of the user equipment. The method and device for acquiring the movement speed of the user equipment is mainly applied to the process of acquiring the movement speed of the user equipment.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for acquiring the moving speed of user equipment. Background technique [0002] With the sharp increase of mobile user data, the load of communication system is getting bigger and bigger. The moving speed of the user is an important index to ensure effective communication of the user equipment. After obtaining the moving speed of the user, the base station can connect the user equipment to a suitable cell to complete various services. At present, the method for obtaining the moving speed of the user equipment is as follows: firstly, perform channel estimation to obtain the channel gain between the user equipment and the base station, and calculate the channel autocorrelation function according to the channel gain, and then perform the channel autocorrelation function according to the channel autocorrelation function The Doppler frequency shift is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/08H04W64/00H04B17/00H04W4/02
Inventor 许文俊李胜钰王燕时洁
Owner HUAWEI TECH CO LTD
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