| 摘要 |
In a wireless network including a base station, an application server, a position determining entity and a mobile phone, a method for using the mobile phone as a vehicle navigation device. The mobile phone detects a user activated request for driving directions and establishes voice and data communications links with the application server through the base station. The user vocally transmits the request and a destination location to the application server. Using wireless assisted GPS, the mobile phone determines its position and transmits its position to the position determining entity. The mobile phone receives the requested driving directions from the application server through the data communications link and provides audible driving directions to the user. In operation, the application server receives the request for position-related information, retrieves the position of the mobile phone from the position determining entity and processes the request for information in accordance with the position of the wireless device.
|
