In-band positioning signal transmitting method and in-band positioning system of communication network

A technology of positioning signal and positioning system, applied in the field of communication

Active Publication Date: 2016-06-01
ZTE CORP
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[0008] At present, there is no effective solution ...

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  • In-band positioning signal transmitting method and in-band positioning system of communication network
  • In-band positioning signal transmitting method and in-band positioning system of communication network
  • In-band positioning signal transmitting method and in-band positioning system of communication network

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[0058] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0059] In this embodiment, an in-band positioning system of a communication network is provided, figure 2 is a structural block diagram of an in-band positioning system of a communication network according to an embodiment of the present invention, such as figure 2 As shown, the system includes: a positioning management network element 22, located in the communication network, for managing one or more positioning network elements, and providing a synchronous reference clock for the positioning network element; a positioning center network element 24, located in the communication network, It is used to provide location estimation information to the terminal based on the location information of the ...

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Abstract

The invention discloses an in-band positioning signal transmitting method and in-band positioning system of a communication network. The in-band positioning system comprises a management network element, a positioning center network element, and a positioning network element. The management network element is arranged in the communication network and is used for managing one or more positioning network elements, and providing a synchronous reference clock for the positioning network elements. The positioning center network element is arranged in the communication network and is used for providing position-estimating information for a terminal on the basis of the positional information of the positioning network elements, and sending the position-estimating information to the terminal. The positioning network element uses a frequency band the same as that of the communication network, and is used for generating, according to positioning signal auxiliary information, an in-band positioning signal for measuring distance, and adjusting the sending clock of the in-band positioning signal according to a difference value between a local transmitting clock and a synchronous reference clock provided by the management network element, and sending the in-band positioning signal according to the adjusted transmitting clock. The in-band positioning system solves a contradiction between positioning precision and cost of the communication network, improves a high-precision clock synchronization mechanism, and solves problems of low positioning precision and high laying cost of the communication network.

Description

technical field [0001] The present invention relates to the field of communication, in particular to a method for transmitting an in-band positioning signal of a communication network and an in-band positioning system. Background technique [0002] With the continuous development of the times, more and more attention has been paid to positioning technology. The demand for high-precision positioning, especially meter-level positioning accuracy, puts forward higher technical requirements for wireless positioning in indoor and other scenarios. [0003] Due to signal loss and other reasons, GPS positioning technology weakens the indoor signal, making it impossible for the positioning terminal to retrieve enough satellites; the cellular network system cannot achieve sufficient accuracy no matter it is outdoors or indoors due to the large positioning error, and cannot meet the requirements Wireless positioning requirements. [0004] In order to solve the problem of indoor high-pr...

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Application Information

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IPC IPC(8): H04W64/00H04L7/00
CPCG01S5/0226G01S1/0423H04W56/00H04W56/0015G01S5/0045G01S5/0236H04W64/00
Inventor 陈诗军胡留军郁光辉戴博鲁照华
Owner ZTE CORP
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