| 摘要 |
A switch arrangement that employs features which already exist in the switch to realize capabilities for wired terminals employing the same features to realize capabilities for wireless terminals. In particular, one capability that is necessary for wireless operations is the ability to track the terminals as they roam anywhere within the permissible area. This capability is achieved herein through the "registration" feature of the switch that is designed to handle wired terminals. Tracking is achieved with this feature by causing all wired terminals to send a similar information string, at regular intervals. As the wireless terminal roams, it is acquired by different base stations that are connected to different line ports of the switch and the base stations, inform the switch of the wireless terminal's wherabouts. Tracking across different switches is also achieved through the registration feature. <IMAGE> |
