WLAN and WWAN connection migration methods and apparatus
First Claim
1. A method for use in switching communication operations between a wireless local area network (WLAN) of a LAN and a wireless wide area network (WWAN) of a WAN which utilizes a Generic Access Network (GAN) or Unlicensed Mobile Access (UMA) controller, the method comprising:
- causing a first call connection of a first call for communications to be established and maintained between a first communication device and a second communication device which are both connected in the LAN, the first call connection being maintained via a WLAN interface of the first communication device and contained within the LAN without being routed to the WAN via the GAN or UMA controller, wherein the WLAN and WWAN comprise networks selected from a list comprising;
a Bluetooth-based network, an IEEE 802.11-based network, a WiMAX network, and a cellular telecommunications network; and
in response to identifying a predetermined condition;
causing a second call connection of a second call for continuing the communications to be established and maintained between the first and the second communication devices which remain connected in the LAN, the second call connection being maintained via the WLAN interface of the first communication device and routed through the LAN out to the WAN via the GAN or UMA controller.
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Accused Products
Abstract
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.
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Citations
30 Claims
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1. A method for use in switching communication operations between a wireless local area network (WLAN) of a LAN and a wireless wide area network (WWAN) of a WAN which utilizes a Generic Access Network (GAN) or Unlicensed Mobile Access (UMA) controller, the method comprising:
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causing a first call connection of a first call for communications to be established and maintained between a first communication device and a second communication device which are both connected in the LAN, the first call connection being maintained via a WLAN interface of the first communication device and contained within the LAN without being routed to the WAN via the GAN or UMA controller, wherein the WLAN and WWAN comprise networks selected from a list comprising;
a Bluetooth-based network, an IEEE 802.11-based network, a WiMAX network, and a cellular telecommunications network; andin response to identifying a predetermined condition;
causing a second call connection of a second call for continuing the communications to be established and maintained between the first and the second communication devices which remain connected in the LAN, the second call connection being maintained via the WLAN interface of the first communication device and routed through the LAN out to the WAN via the GAN or UMA controller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A mobile communication device configured to switch communication operations between a wireless local area network (WLAN) of a LAN and a wireless wide area network (WWAN) of a WAN which includes a Generic Access Network (GAN) or Unlicensed Mobile Access (UMA) controller, the mobile communication device comprising:
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one or more processors; a WLAN radio interface configured to communicate via the WLAN; a WWAN radio interface configured to communicate via the WWAN, wherein the WLAN and WWAN comprise networks selected from a list comprising;
a Bluetooth-based network, an IEEE 802.11-based network, a WiMAX network, and a cellular telecommunications network;the one or more processors being configured to cause a first call connection of a first call for communications to be established and maintained, via the WLAN using the WLAN radio interface, with a communication device connected in the LAN, the first call connection being contained within the LAN without being routed to the WAN via the GAN or UMA controller; and the one or more processors being configured to cause a second call connection of a second call for continuing the communications to be established and maintained, via the WLAN using the WLAN radio interface, with the communication device connected in the LAN in response to detecting a predetermined condition, the second call connection being routed through the LAN out to the WAN via the GAN or UMA controller. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A network component configured to switch communication operations between a wireless local area network (WLAN) of a LAN and a wireless wide area network (WWAN) of a WAN which utilizes a Generic Access Network (GAN) or Unlicensed Mobile Access (UMA) controller, the network component comprising:
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one or more processors; the one or more processors being configured to cause a first call connection of a first call for communications to be established and maintained between a first communication device and a second communication device which are both connected in the LAN, the first call connection being maintained via a WLAN interface of the first communication device and contained within the LAN without being routed to the WAN via the GAN or UMA controller, wherein the WLAN and WWAN comprise networks selected from a list comprising;
a Bluetooth-based network, an IEEE 802.11-based network, a WiMAX network, and a cellular telecommunications network; andthe one or more processors being configured to cause a second call connection of a second call for continuing the communications to be established and maintained between the first and the second communication devices which remain connected in the LAN in response to identifying a predetermined condition, the second call connection being maintained via the WLAN interface of the first communication device and routed through the LAN out to the WAN via the GAN or UMA controller. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification