Method and apparatus for performing a handoff of a data communication session from one network to another network
First Claim
1. A mobile device, comprising:
- a first interface module configured tointerface the mobile device to a cellular network, andreceive, from a transmitting device, data transmitted over the cellular network to the mobile device, wherein the data originates at the transmitting device;
a second interface module configured tointerface the mobile device to a wireless local area network, andreceive, from the transmitting device, data transmitted over the wireless local area network to the mobile device, wherein the data transmitted over the wireless local area network corresponds to the data transmitted over the cellular network; and
a control module configured tocompare (i) a first time stamp associated with the data received from the transmitting device over the cellular network to (ii) a second time stamp associated with the data received from the transmitting device over the wireless local area network,determine, based on the comparison of the first time stamp to the second time stamp, when the first time stamp matches the second time stamp,in response to a determination that the first time stamp matches the second time, switch a communication link to the transmitting device from the cellular network to the wireless local area network, andin response to, and subsequent to, the communication link to the transmitting device being switched from the cellular network to the wireless local area network, transmit a message to the transmitting device, wherein the message informs the transmitting device not to transmit the data to the mobile device over the network.
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Accused Products
Abstract
A mobile device includes a first interface module, a second interface module, and a control module. The first interface module is configured to interface the mobile device to a first wireless network and to receive data from a transmitting device via the first wireless network. The second interface module is configured to interface the mobile device to a second wireless network. The control module is configured to determine based on the data received when to switch a link to the transmitting device from the first wireless network to the second wireless network. The control module is further configured to transmit a message that informs the transmitting device not to transmit the data to the mobile device via the first wireless network in response to the link being switched to the second wireless network.
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Citations
12 Claims
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1. A mobile device, comprising:
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a first interface module configured to interface the mobile device to a cellular network, and receive, from a transmitting device, data transmitted over the cellular network to the mobile device, wherein the data originates at the transmitting device; a second interface module configured to interface the mobile device to a wireless local area network, and receive, from the transmitting device, data transmitted over the wireless local area network to the mobile device, wherein the data transmitted over the wireless local area network corresponds to the data transmitted over the cellular network; and a control module configured to compare (i) a first time stamp associated with the data received from the transmitting device over the cellular network to (ii) a second time stamp associated with the data received from the transmitting device over the wireless local area network, determine, based on the comparison of the first time stamp to the second time stamp, when the first time stamp matches the second time stamp, in response to a determination that the first time stamp matches the second time, switch a communication link to the transmitting device from the cellular network to the wireless local area network, and in response to, and subsequent to, the communication link to the transmitting device being switched from the cellular network to the wireless local area network, transmit a message to the transmitting device, wherein the message informs the transmitting device not to transmit the data to the mobile device over the network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification