| 摘要 |
A method of transmitting position data via cellular communication system includes the steps of receiving position data from a position data producer such as a GPS, an INS, or a GPS/INS integrated system, attaching the position data to a location registration data stream, and sending the position data along with the location registration data to a base station. This method takes advantages of the existing location updating procedure in a cellular network system to transmit precision position data of a mobile station. It does not need a dialing up to transmit position data. By utilizing this method, the position data of the mobile station can be delivered to the base station or cellular network whenever the mobile station is powered on.
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