PHS system positioning method

A positioning method and positioning technology, applied in the field of PHS systems, can solve the problems of low power of mobile phones, application limitations, and complicated propagation models, and achieve the effect of improving positioning accuracy and reducing coverage.

Inactive Publication Date: 2007-07-18
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although multi-base station positioning provides a direction to improve positioning accuracy, due to the low power of the mobile phone and the complexity of the propagation model, there is currently no good model for reference to calculate the location of the mobile phone, and its application is limited

Method used

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Embodiment Construction

[0036] The method of the present invention obtains the coverage of the positioning service channel by adjusting the power of the service channel in the positioning process until the road-associated wireless link cannot be maintained, and uses the power adjustment to reduce the coverage of the service channel of the base station, thereby improving the single base station of the PHS system. positioning accuracy; on the basis of single base station positioning, the method of the present invention further improves its positioning accuracy by using multiple base station overlapping coverage area positioning, and further improves the positioning accuracy to the greatest extent by adaptively adjusting the positioning cycle. Wherein, FIG. 3 shows a schematic diagram of improving the positioning accuracy by adjusting the power of a single base station in the method of the present invention. As shown in FIG. 3 , after the power adjustment of the traffic channel of the base station, the c...

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Abstract

This invention discloses a localizing method for PHS system including a step of localization of single base station characterizing that said step also includes adjusting traffic channel power and getting the position of a base station in a beeping region and its covering sphere when a cell phone responds and beeps, which reduces the covering sphere of base station traffic channels and increases localizing accuracy to base stations of the PHS system.

Description

technical field [0001] The invention relates to a PHS system (Personal Handy Phone System, also known as a wireless local telephone system in China), in particular to a positioning method for the PHS system. Background technique [0002] The total number of wireless local phone users in China has exceeded 50 million and will continue to grow. In order to improve the communication level and quality of life of the majority of users, in addition to providing the basic services of voice calls, the development of value-added services has become increasingly important. Positioning is an important service of the mobile system and the basis of many value-added services, such as emergency rescue and tour guide services. Its development has a great impact on the development of PHS value-added services. [0003] The positioning service was not taken into consideration when the PHS standard was formulated, resulting in certain restrictions on the development of the positioning service ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04W64/00
Inventor 刘绍龙
Owner ZTE CORP
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