Cellular telecommunications network having seamless interoperabi

Details Cellular telecommunications network having seamless interoperabi Cellular telecommunications network having seamless interoperabi

1995-10-13

1998-06-02

MacDonald, Allen R.

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

455439, 455450, H04M 1100, H04Q 700

Patent

active

057616230

ABSTRACT:
A system and method of providing seamless interoperability for a mobile station roaming between cellular telecommunication systems operating in multiple hyperbands such as the 1900-MHz PCS hyperband and the 800-MHz cellular telephone hyperband, utilizing United States cellular standards. An enhanced inter-exchange communications protocol based on IS-41 is utilized to communicate information required for seamless interoperability between mobile switching centers (MSCs). The enhanced inter-exchange communications protocol comprises a plurality of signaling messages and a plurality of modified message parameters within the signaling messages. The modified message parameters are modified to include information elements required for seamless interoperability between the multi-hyperband capable exchanges and are added as optional (overriding) parameters to the signaling messages.

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