| A novel assistance data processing method for AGPS location system |
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| 作者姓名： | LEI Jian-jun XIA Ying Hae-young Bae |
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| 作者单位： | [1]Chongqing Institute of Technology, Chongqing 400050, P. R. China [2]Sino-Korea Chongqing GIS Research Center, Chongqing University of Posts and Telecommunications, Chongqing 400065, P. R. China [3]Dept. of Computer Science and Engineering, Inha University, Inchon 402 751, Korea |
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| 摘 要： | A method for efficiently transmitting location assistance information to an MS （mobile station） over a control channel with minimal impact on the capacity of the control channel. A location server provides a difference between satellite positions that have been computed using Almanac data and Ephemeris data. Sending only the differ ence between the positions and satellite clock corrections computed using the two different data types. The total amount of information to be transmitted to a MS is significantly reduced. Furthermore, by providing rate of change information, the method allows the location assistance information to remain valid for a relatively long time after it has been received by the MS.
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| 关 键 词： | 援助信息数据 数据加工 定位系统 流动式电台 全球卫星定位系统 AGPS |
| 文章编号： | 1673-825X（2007）03-0358-04 |
| 收稿时间： | 2007-02-10 |
| 修稿时间： | 2007-02-10 |
A novel assistance data processing method for AGPS location system |
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| LEI Jian-jun,XIA Ying,Haeyoung Bae.A novel assistance data processing method for AGPS location system[J].Journal of Chongqing University of Posts and Telecommunications,2007,19(3):358-361. |
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| Authors: | LEI Jian-jun XIA Ying Haeyoung Bae |
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| Institution: | Chongqing Institute of Technology, Chongqing 400050, P.R.China |
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| Abstract: | A method for efficiently transmitting location assistance information to an MS (mobile station) over a control channel with minimal impact on the capacity of the control channel. A location server provides a difference between satellite positions that have been computed using Almanac data and Ephemeris data. Sending only the difference between the positions and satellite clock corrections computed using the two different data types. The total amount of information to be transmitted to a MS is significantly reduced. Furthermore, by providing rate of change information, the method allows the location assistance information to remain valid for a relatively long time after it has been received by the MS. |
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| Keywords: | AGPS wireless location assistance data |
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