| 摘要 |
A communication protocol for use between a position-location server and a wireless communication device provides for messages in the ubiquitous extensible markup language (XML) to be sent between the position-location server and the wireless communication device over a wireless communication network. In particular, the position- location sever composes a position-location request, and sends the request to a wireless communication device. The request seeks information from the wireless communication device, and may include information relating to the location, altitude, velocity, and orientation of the wireless communication device. In return, the wireless communication device provides a position-location response that includes the requested information. Additionally, information relating to the accuracy of the position and location information can be included with the response to improve any predictive metrics that are later determined by the position- location server.
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