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Wireless positioning method and base station

A wireless positioning and base station technology, applied in wireless communication, electrical components and other directions, can solve the problems of complex ranging methods, affecting positioning accuracy, and the effect of filtering algorithm is difficult to reach the best state, so as to reduce the complexity of positioning and reduce the computational burden. , Improve the effect of positioning accuracy

Active Publication Date: 2014-12-31
BEIJING UNIV OF POSTS & TELECOMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because the existing wireless positioning method needs to return the positioning parameters to the service desk, the service desk performs positioning, and the terminal cannot locate itself, and the calculation is all on the side of the service desk, making it difficult for the service desk to support massive users to locate in parallel and count user locations in real time Information is more difficult; in addition, the real-time performance of the positioning information return is difficult to guarantee, which makes it difficult for many filtering algorithms to reach the best state, affecting the positioning accuracy, and the OFDM modulation mode is used, and the ranging method is complicated

Method used

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  • Wireless positioning method and base station

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Experimental program
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Embodiment 1

[0045] This embodiment provides a wireless positioning method. By improving the LTE (Long Term Evolution, Long Term Evolution) signal system, the method enables the base station to have the function of sending a positioning signal carrying a navigation message, and realizes autonomous positioning of the terminal according to the navigation message. see figure 1 , the method flow provided by this embodiment is specifically as follows:

[0046] 101: The base station obtains the navigation message, the navigation message contains positioning information, and the positioning information includes at least altitude information and air pressure value at the base station, and / or time synchronization error correction information;

[0047] Among them, the base station obtains the navigation message, which specifically includes:

[0048] Detect the air pressure and temperature at the base station through the air pressure sensor, and / or obtain time synchronization correction information ...

Embodiment 2

[0062] Embodiment two

[0063] This embodiment provides a wireless positioning method. The method combines the content provided by the first embodiment above, and by improving the LTE signal system, the terminal can achieve autonomous positioning under the premise of ensuring positioning accuracy. For ease of description, this embodiment takes a CDMA (Code Division Multiple Access, Code Division Multiple Access, Code Division Multiple Access) spreading sequence as an example of a positioning signal and a PRS as an example to illustrate a wireless positioning method. see figure 2 , the method flow provided by this embodiment is specifically as follows:

[0064] 201: The base station obtains the navigation message, the navigation message contains positioning information, and the positioning information includes at least altitude information and air pressure value at the base station, and / or time synchronization error correction information;

[0065] Wherein, when the base sta...

Embodiment 3

[0101] This embodiment provides a base station, and the base station is configured to perform functions on the base station side in the wireless positioning methods provided in the first and second embodiments above. see image 3 , the base station includes:

[0102] An acquisition module 31, configured to acquire a navigation message, which includes positioning information;

[0103] The first generating module 32 is configured to generate a positioning signal carrying the navigation message obtained by the obtaining module 31;

[0104] The sending module 33 is configured to send the positioning signal generated by the first generating module 32 to the terminal, so that the terminal obtains the navigation message in the positioning signal, and performs positioning according to the positioning information in the navigation message.

[0105] Wherein, the positioning information contained in the navigation message obtained by the obtaining module 31 at least includes: altitude ...

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Abstract

The invention discloses a wireless positioning method and a base station and belongs to the technical field of positioning. The wireless positioning method includes that the base station acquires navigation messages comprising positioning information, generates positioning signals with the navigation messages and transmits the positioning signals to a terminal so that the terminal can acquire the navigation messages in the positioning signals and realize positioning according to the positioning information in the navigation messages. The base station acquires the navigation messages comprising the positioning information and transmits the positioning signals with the navigation messages to the terminal, and accordingly, the terminal can automatic position according to the positioning information in the navigation messages, and further, computing load of servers can be reduced. Additionally, compared with the method of positioning in the OFDM (orthogonal frequency division multiplexing) modulation manner, the wireless positioning method can improve positioning accuracy and reduce positioning complexity.

Description

technical field [0001] The invention relates to the technical field of positioning, in particular to a wireless positioning method and a base station. Background technique [0002] With the development of communication technology, the application range of wireless positioning is getting wider and wider. Combined with various wireless signals, such as Chirp signals, Zigbee (Zigbee) signals, UWB (Ultra Wideband, ultra-wideband) signals and pilot signals in communication systems, wireless positioning can be applied in different fields and enrich people's lives . How to improve the accuracy of wireless positioning and make it better serve the public is the focus of wireless positioning research. [0003] In the existing wireless positioning method, PRS (Positioning Reference Signals, positioning reference signal) is designed for the OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) system, which is used for the configuration of the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00
Inventor 邓中亮余彦培袁协王佳尹会明曹佳雯吕子平
Owner BEIJING UNIV OF POSTS & TELECOMM
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