| 摘要 |
A navigation method for a communication device sends a navigational route request from the communication device to the server to generate a navigation contact group, sends a join message to join the navigation contact group as a group member, the navigational route request includes a start time and a time interval, and receives position information of the group members at each time interval from the server. The method further selects a position of a target group member from the position information of the group members, receives updated position information of the target group member from the server, and provides navigational route for the communication device according to the updated position information of the target group member using a global position system of the communication device.
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