Method and device for increasing positioning accuracy of wireless honeycomb system
A test point and hardware technology, applied in wireless communication, electrical components, etc., can solve the problem of low positioning accuracy and achieve the effect of improving positioning accuracy
Active Publication Date: 2012-03-21
ZTE CORP
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Problems solved by technology
[0010] The technical problem to be solved by the present invention is a method and device for improving the positioning accuracy of the wireless cellular system, which is used to solve the low positioning accuracy of the current wireless cellular system and overcome the influence of hardware delay and other factors on the positioning accuracy
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] Since there are factors affecting the positioning accuracy such as the feeder length of the base station, the reverse hardware delay of the equipment, and the demodulation time of the equipment channel board in the wireless cellular system, the present invention proposes a method and device for improving the positioning accuracy of the wireless cellular system. Statistical analysis of measured data and background statistical data to obtain the average error between the reverse link delay and line-of-sight path delay of all test points in the service cell, and then use the average error to correct the reverse hardware delay of the device , so that the reverse delay data of the device can be accurately obtained, the problem affecting the positioning accuracy i...
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The invention discloses a method and a device for increasing the positioning accuracy of a wireless honeycomb system. In the device, a drive test data acquiring and analyzing module is used for acquiring drive test data, and counting and analyzing the drive test data to obtain the apparent distance route time delay of every test point; a background data acquiring and analyzing module is used for acquiring background tracked test data, and counting and analyzing the background tracked test data to obtain the reverse link time delay of every test point; an error computing module is used for summarizing and averaging a difference obtained by subtracting the apparent distance route time delay and the reverse hardware time delay of equipment from the reverse link time delay of every test point which corresponds to a single service cell to obtain the average time delay error of the service cell; and a time delay correcting module is used for correcting the reverse hardware time delay of the equipment of the service cell by using the average time delay error. By applying the method and the device, the reverse hardware time delay can be obtained accurately, and the positioning accuracy of the wireless honeycomb system is increased.
Description
technical field [0001] The invention relates to the technical field of wireless communication, in particular to a method and device for improving positioning accuracy of a wireless cellular system. Background technique [0002] In the wireless communication system, the wireless cellular system uses several base stations to form a wireless cellular network, and the wireless cellular system can be used for positioning. This positioning function can be applied to public safety services (such as: emergency medical treatment, emergency positioning, emergency alarm service) , crime investigation, cellular system planning and optimization, information service, location-specific payment, ship and fishery management, navigation and intelligent transportation system (ITS), etc. [0003] For the positioning function of the wireless cellular system, there are many positioning methods and positioning algorithms, among which the basic positioning methods include: cell unit positioning (po...
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Inventor 叶仁召谢卫浩杨毅王连臣吴赟李柏良
Owner ZTE CORP