| 摘要 |
There is described a mobile communication system having base stations which communicate with mobile communication devices within range of that base station. At least one base station is arranged to transmit encrypted location information indicative of the location of a mobile communication device within range of that base station, and authorized mobile communication devices include means for decrypting said encrypted location information. This allows only certain mobile users to receive the location information, for example those that pay a subscription to use such a service. |
