Method and system using a conference bridge for handoff of a multi-mode mobile station
First Claim
1. A method for effecting a handoff of a multi-mode mobile station from a first wireless network to a second wireless network, said multi-mode mobile station having a first interface for wireless communication with said first wireless network and a second interface for wireless communication with said second wireless network, said method comprising:
- receiving a call request that requests establishment of a call between said multi-mode mobile station and an endpoint;
in response to said call request, establishing a first call leg between a conference bridge and said multi-mode mobile station via said first wireless network;
receiving a handoff request;
in response to said handoff request, establishing a second call leg between said conference bridge and said multi-mode mobile station via said second wireless network, said conference bridge bridging said first and second call legs; and
dropping said first call leg.
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Accused Products
Abstract
A multi-mode mobile station includes a first interface for wireless communication with a wireless local area network (WLAN) and a second interface for wireless communication with a wireless wide area network (WWAN). The multi-mode mobile station is associated with a particular conference bridge, through which all calls to and from the multi-mode mobile station are routed. For example, when a call involving the multi-mode mobile is established via the WLAN, the call includes a WLAN call leg that extends from the conference bridge to the multi-mode mobile station via the WLAN. To effect a handoff during the call, a WWAN call leg is established between the multi-mode mobile station and the conference bridge via the WWAN. The conference bridge bridges the WLAN and WWAN call legs. To complete the handoff, the multi-mode mobile station drops the WLAN call leg and continues the call using the WWAN call leg.
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Citations
20 Claims
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1. A method for effecting a handoff of a multi-mode mobile station from a first wireless network to a second wireless network, said multi-mode mobile station having a first interface for wireless communication with said first wireless network and a second interface for wireless communication with said second wireless network, said method comprising:
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receiving a call request that requests establishment of a call between said multi-mode mobile station and an endpoint;
in response to said call request, establishing a first call leg between a conference bridge and said multi-mode mobile station via said first wireless network;
receiving a handoff request;
in response to said handoff request, establishing a second call leg between said conference bridge and said multi-mode mobile station via said second wireless network, said conference bridge bridging said first and second call legs; and
dropping said first call leg. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for communicating with multi-mode mobile stations that can communicate with at least a first wireless network and a second wireless network, said method comprising:
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associating each one of a plurality of said multi-mode mobile stations with a particular one of a plurality of conference bridges;
receiving a call request that requests establishment of a call between an endpoint and a given one of said plurality of multi-mode mobile stations;
in response to said call request, identifying a given conference bridge, from among said plurality of conference bridges, that is associated with said given multi-mode mobile station; and
establishing said call through said given conference bridge. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system for providing wireless telecommunications for a plurality of multi-mode mobile stations, comprising:
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a first wireless network;
a second wireless network;
a plurality of conference bridges communicatively coupled to said first and second wireless networks;
a database that associates each one of said plurality of multi-mode mobile stations with a particular one of said plurality of conference bridges; and
a call control system communicatively coupled to said database and to said plurality of conference bridges, wherein said call control system selectively routes calls to and from said multi-mode mobile stations through their associated conference bridges. - View Dependent Claims (19, 20)
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Specification