Wlan and wwan connection migration methods and apparatus

H - Electricity – 04 – L

Patent

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Details

H04L 12/28 (2006.01) H04L 12/66 (2006.01) H04L 29/02 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2649866

Intra-enterprise wireless handset (WH) calls between WHs operating in a wireless local area network (WLAN) are established directly between the WHs via a call connection that is maintained within the LAN without being routed through the cellular network (CN). This eliminates the cost of placing and maintaining calls through the CN for intra-enterprise calls, and also enables use of capabilities that are available in the enterprise telecomm equipment. Upon detection of a trigger condition, if and when it is more likely that a complete vertical handover (VHO) may be needed, the call connection between the WHs in the LAN is replaced by one that is routed through the CN. Thereafter, a VHO may occur (if at all) upon detection of a radio handover condition.

L'invention concerne des appels de combiné sans fil (WH) intra-entreprise entre des WH opérant dans un réseau local sans fil (WLAN) établis directement entre les WH par l'intermédiaire d'une connexion d'appels maintenue à l'intérieur du réseau local sans être routée à travers le réseau cellulaire (CN - réseau cellulaire). Ceci élimine le coût de placer et de maintenir des appels à travers le CN pour des appels intra-entreprise et permet également l'utilisation de capacités disponibles dans l'équipement de télécommunications d'entreprises. Lors de la détection d'une condition de déclenchement, si et quand il est plus probable qu'un transfert automatique vertical complet (VHO - vertical Hand Over) est nécessaire, la connexion d'appel entre les WH dans le réseau local est remplacée par une connexion routée à travers le CN. Ensuite, un VHO peut se produire (le cas échéant) lors de la détection d'une condition de transfert automatique radio.

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