Federated multiprotocol communication
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0 Petitions
Accused Products
Abstract
Methods, apparatus, and business techniques are disclosed for use in distributed communication systems comprising a plurality of communication protocols. In one embodiment a first air interface is used to initiate communication between a wireless client and a remote server at least partially using a first wireless access point. The server sends the wireless client a stub of a distributed object. The stub is used to instantiate an object class. The object class defines an interface that the remote client can use to communicate with the remote server using an upper layer interface. The distributed object stub also provides an implementation of a software radio configuration for a set of lower protocol layers in a second air interface. The wireless client can thereby communicate with a second wireless access point using said second air interface protocol. Exemplary embodiments of the present invention are disclosed that focus on toll-tag and electronic-commerce related highway systems, distributed federated wireless access systems, and wide area wireless system capacity augmentation.
123 Citations
76 Claims
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1-20. -20. (canceled)
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21. For use in a system comprising a cellular network and a wireless local area network coupled to an Internet, wherein a mobile unit communicates via a packet switched data network at a transport layer or above with a remote server system, a method comprising:
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establishing a voice telephony call between the mobile unit and a remote voice telephony endpoint, via the cellular network, using a circuit switched cellular telephony protocol;
receiving from the remote server system an indication to automatically switch the voice telephony call from the cellular network to the Internet; and
switching the voice telephony call from the cellular network to the Internet, via the wireless local area network, using a voice-over-Internet telephony protocol, in response to the indication;
wherein the switching is performed while maintaining a voice connectivity with the remote voice telephony endpoint, to thereby provide a seamless call handoff between the cellular network and the Internet, via the wireless local area network. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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36. For use in a system comprising a mobile unit, a cellular network, a wireless local area network coupled to an Internet, and a remote server system, wherein the remote server system sends via a packet switched data network at a transport layer or above to at least one of the mobile unit, the cellular network, and the wireless local area network, at least one indication to automatically switch a voice telephony call from the cellular network to the Internet, via the wireless local area network, to facilitate a seamless call handoff operation, a method comprising:
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establishing the voice telephony call between the mobile unit and a remote voice telephony endpoint via the cellular network using a circuit switched cellular telephony protocol; and
switching the at least a portion of the voice telephony call from the cellular network to the Internet, via the wireless local area network, using a voice-over-Internet telephony protocol after the at least one indication is received by at least one of the mobile unit, the cellular network and the wireless local area network;
wherein the switching is performed in such a manner as to maintain voice continuity between a first portion of the voice telephony call which occurs prior to the switching and a second portion of the voice telephony call which occurs subsequent to the switching, to thereby provide a seamless call handoff between the cellular network and the Internet, via the wireless local area network. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. For use in a system comprising a mobile unit, a cellular network and a wireless local area network coupled to an Internet, wherein at least one of the mobile unit, the cellular network and the wireless local area network communicates via a packet switched data network at a transport layer or above with a remote server system to facilitate a roam operation, the wireless local area network communicates voice media information over the Internet using a voice-over-Internet protocol, and wherein a voice telephony call is in progress between the mobile unit and a remote voice telephony endpoint at least partially via the cellular network, a method comprising:
the remote server system sending to at least one of the mobile unit, the cellular network, and the wireless local area network at least one indication to automatically switch at least a portion of the voice telephony call in progress from the cellular network to the Internet, via the wireless local area network. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. For use in a system comprising a cellular network, a wireless local area network coupled to an Internet, and a remote server system that communicates with one or more external devices via a packet switched data network at a transport layer or above to facilitate a roam operation, a method comprising:
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establishing a voice telephony call between a mobile unit and a remote voice telephony endpoint, including a wireless call leg between the mobile unit and the cellular network; and
automatically switching at least a portion of the voice telephony call from the cellular network to the Internet, via the wireless local area network, and using a voice-over-Internet voice transmission protocol, in a manner transparent to a user of the mobile unit, to thereby provide a seamless call handoff between the cellular network and the Internet, via the wireless local area network;
wherein the seamless call handoff is managed by the remote server system. - View Dependent Claims (68, 69, 70, 71, 72, 73, 74, 75, 76)
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Specification