Implementation of wireless terminal roaming capability via a wir

Details Implementation of wireless terminal roaming capability via a wir Implementation of wireless terminal roaming capability via a wir

1997-06-10

1999-02-16

Cumming, William

Telecommunications

Radiotelephone system

Message storage or retrieval

370941, 370338, 370352, 379 38, A63B 5900

Patent

active

058730311

ABSTRACT:
A switch arrangement that employs features which already exist in the switch to otherwise 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, effectively, inform the switch of the wireless terminal's wherabouts. Tracking across different switches is also achieved through the registration feature.

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