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Positioning method and system in code division multiple access (CDMA) based on measurement report (MR)

A measurement report and positioning module technology, applied in the field of communication, can solve problems such as no effective method for realizing positioning

Inactive Publication Date: 2013-03-27
广州瀚信通信科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the situation in code division multiple access CDMA technology, there are many existing mobile terminal positioning methods, but there is no effective implementation method based on MR positioning

Method used

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  • Positioning method and system in code division multiple access (CDMA) based on measurement report (MR)
  • Positioning method and system in code division multiple access (CDMA) based on measurement report (MR)
  • Positioning method and system in code division multiple access (CDMA) based on measurement report (MR)

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Embodiment Construction

[0047] A schematic diagram of a wireless terminal based on miniature text display will be described in detail below in combination with embodiments of the present invention.

[0048] Wireless positioning is to provide mobile users with real-time information of their own location within the effective wireless coverage. In essence, it uses the characteristic changes of wireless signals, such as propagation time, time difference, signal field strength, phase or incident angle, etc., to calculate the target position through certain geometric principles.

[0049] At least three base stations are needed to locate the mobile terminal according to the estimation result of signal transmission delay. Positioning using the angle of arrival of the signal requires at least two base stations. If both transmission delay and angle are used for positioning, only one base station is required. Due to the influence of mobile communication channel noise, multipath propagation or non-line-of-sigh...

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Abstract

The invention discloses a positioning method and a system in CDMA based on an MR. The positioning method comprises obtaining a cell identifier CELL ID in report information in a CDMA product, and determining a cell coverage range; obtaining time of arrival (TOA) of signals of a mobile terminal report branch in MT tracking, and calculating the distance between the mobile terminal and a base station according to the TOA; and performing positioning analysis according to the determined cell coverage range and the distance between the mobile terminal and the base station. The positioning method is fast in calculation response speed, and the accuracy is higher than field intensity positioning accuracy and positioning accuracy on the basis of characteristic matching.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and system for realizing positioning based on measurement reports in CDMA. Background technique [0002] MR (Measurement Report) is called a measurement report. It is stipulated in the protocol that it is periodically sent during a call or reported by an event trigger, and includes the wireless environment information of all users on the network at their geographical locations. Using MR data for network optimization can be the closest to the data reflection of the real wireless environment and the data that is closest to the user's perception. Compared with the traditional drive test DT, the location information of the measurement report after positioning is not as accurate as that of the drive test. However, since the measurement report can obtain the information of all users at any time period, its massive statistical features are unmatched by the drive test. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10H04W64/00
Inventor 徐志强刘丽华
Owner 广州瀚信通信科技股份有限公司
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