H - Electricity – 04 – Q
Patent
H - Electricity
04
Q
H04Q 7/36 (2006.01) H04Q 7/24 (2006.01) H04Q 7/38 (2006.01)
Patent
CA 2234697
-43- A system and method of providing seamless interoperability for a mobile station roaming between cellular telecommunication systems (31) 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) (MSC1, MSC2). The enhanced inter-exchange communications protocol comprises a plurality of signaling messages (51) and a plurality of modified message parameters (52) within the signaling messages. The modified message parameters (52) are modified to include information elements (53) required for seamless interoperability between the multi-hyperband capable exchanges and are added as optional (overriding) parameters to the signaling messages.
L'invention porte sur un système et un procédé permettant un interopérabilité sans coupure pour une station mobile évoluant entre des systèmes (31) de télécommunications cellulaires fonctionnant en hyperbandes multiples telles que l'hyperbande PCS à 1900 MHz et l'hyperbande pour téléphones cellulaires à 800 MHz correspondant aux normes américaines concernant les systèmes cellulaires. Un protocole de communication amélioré entre centraux basé sur l'IS-41 sert à communiquer les informations requises pour un interopérabilité sans heurts entre centres de commutation mobiles (MSCs), (MSC1, MSC2). Ledit protocole comporte une série de messages de signalisation (51) et une série de paramètres (52) de messages modifiés pour inclure les éléments d'information (53) requis pour permettre un interopérabilité sans coupure entre les centraux à capacité multihyperbande et ajoutés aux messages de signalisation en tant que paramètres facultatifs (prioritaires).
Lupien Francis
Wong Helen
Ericsson Canada Patent Group
Telefonaktiebolaget Lm Ericsson
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