Apparatus and method for handover between two networks during an ongoing communication
First Claim
1. A method in a communication device for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the method comprising:
- entering an ongoing communication on the first radio access network;
detecting the presence of a second radio access network, the second radio access network being uncoordinated with the first radio access network;
sending a transfer request to the second radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
transferring the ongoing communication from the first radio access network to the second radio access network.
1 Assignment
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Accused Products
Abstract
A method and apparatus for handover of a communication device between a first network and a second network while the communication device is in an ongoing communication. The communication device can register with the second network. The communication device can also enter an ongoing communication via the first network. The communication device can send a transfer request to the second network to request a handover of the ongoing communication between the first network and the second network without interrupting the ongoing communication.
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Citations
41 Claims
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1. A method in a communication device for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the method comprising:
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entering an ongoing communication on the first radio access network;
detecting the presence of a second radio access network, the second radio access network being uncoordinated with the first radio access network;
sending a transfer request to the second radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
transferring the ongoing communication from the first radio access network to the second radio access network. - View Dependent Claims (2, 3, 4)
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5. A method in a radio access network for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the method comprising:
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registering a communication device on the second radio access network;
receiving information at the second radio access network from the communication device indicating the communication device is actively in an ongoing communication on the first radio access network;
sending a transfer request from the second radio access network to the first radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
transferring the ongoing communication from the first radio access network to the second radio access network. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method in a radio access network for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the method comprising:
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establishing an ongoing communication with the communication device on the first radio access network;
receiving a transfer request from the second radio access network to the first radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
transferring the ongoing communication from the first radio access network to the second radio access network. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A communication device for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the communication device comprising:
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a transceiver;
a controller coupled to the transceiver, the controller configured to enter an ongoing communication on the first radio access network;
a network detection module coupled to the controller, the network detection module configured to detect the presence of a second radio access network, the second radio access network being uncoordinated with the first radio access network;
a transfer request module coupled to the controller, the transfer request module configured to send a transfer request to the second radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
an ongoing communication transfer module coupled to the controller the ongoing communication transfer module configured to transfer the ongoing communication from the first radio access network to the second radio access network. - View Dependent Claims (32, 33, 34)
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35. A controller in a radio access network for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the controller comprising:
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a registration module configured to register a communication device on the second radio access network;
an ongoing communication determination module configured to receive information at the second radio access network from the communication device indicating the communication device is actively in an ongoing communication on the first radio access network;
a transfer request communication module configured to send a transfer request from the second radio access network to the first radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
a handover module configured to transfer the ongoing communication from the first radio access network to the second radio access network. - View Dependent Claims (36, 37)
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38. A controller in a radio access network for handover from a first radio access network to a second radio access network, the first radio access network using a different mode of communication from the second radio access network, the controller comprising:
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a communication connection module configured to establish an ongoing communication with the communication device on the first radio access network;
a transfer request module configured to receive a transfer request from the second radio access network to the first radio access network requesting transfer of the ongoing communication from the first radio access network to the second radio access network; and
a communication transfer module configured to transfer the ongoing communication from the first radio access network to the second radio access network. - View Dependent Claims (39, 40, 41)
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Specification