Inter working function (IWF) as logical radio network controller (RNC) for hybrid coupling in an interworking between WLAN and a mobile communications network
First Claim
1. A method for supporting an interworking between a wireless local area network and a mobile communications network, the mobile communications network including a serving radio network controller, a universal mobile telecommunications system, and a radio access network comprising a transceiver coupled to a radio network controller, the radio network controller being coupled to a core network, the method comprising the steps of:
- providing an interworking function disposed on the wireless local area network side of the mobile communications network;
connecting the wireless local area network to the mobile communications network by employing the interworking function as a drift radio network controller associated with the mobile communications network, wherein the connecting step connects the wireless local area network to the mobile communications network through a user plane interface disposed between the interworking function and the serving radio network controller, and wherein the mobile communications network further including a serving general packet radio service support node, a gateway general packet radio service support node, and a node B;
forming a data path from a user equipment to the interworking function to the serving radio network controller to the serving general packet radio service support node to the gateway general packet radio service support node;
forming a control path from the user equipment to the node B to the serving radio network controller to the serving general packet radio service support node to the gateway general packet radio service support node; and
performing call admission control by the interworking function. wherein said performing step is implemented based upon at least one of a type of service assigned by the interworking function, a type of dedicated/common transport channel requested by the serving radio network controller, and wireless local area network resources available in an access point to which a user equipment will attach.
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Accused Products
Abstract
There is provided a method of supporting an interworking between a wireless local area network (WLAN) and a mobile communications network. The interworking is facilitated by an interworking function (IWF) disposed on a WLAN side of the interworking. The method comprises the step of connecting the WLAN to the mobile communications network by employing the IWF as an auxiliary radio network controller for the mobile communications network, in particular, a drift radio network controller (DRNC) in a UMTS network.
36 Citations
14 Claims
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1. A method for supporting an interworking between a wireless local area network and a mobile communications network, the mobile communications network including a serving radio network controller, a universal mobile telecommunications system, and a radio access network comprising a transceiver coupled to a radio network controller, the radio network controller being coupled to a core network, the method comprising the steps of:
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providing an interworking function disposed on the wireless local area network side of the mobile communications network; connecting the wireless local area network to the mobile communications network by employing the interworking function as a drift radio network controller associated with the mobile communications network, wherein the connecting step connects the wireless local area network to the mobile communications network through a user plane interface disposed between the interworking function and the serving radio network controller, and wherein the mobile communications network further including a serving general packet radio service support node, a gateway general packet radio service support node, and a node B; forming a data path from a user equipment to the interworking function to the serving radio network controller to the serving general packet radio service support node to the gateway general packet radio service support node; forming a control path from the user equipment to the node B to the serving radio network controller to the serving general packet radio service support node to the gateway general packet radio service support node; and performing call admission control by the interworking function. wherein said performing step is implemented based upon at least one of a type of service assigned by the interworking function, a type of dedicated/common transport channel requested by the serving radio network controller, and wireless local area network resources available in an access point to which a user equipment will attach. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for supporting an interworking between a wireless local area network and a mobile communications network, the apparatus comprising;
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an interworking function disposed on a wireless local area network side of the mobile communications network; means for connecting the wireless local area network to the mobile communications network through a user plane interface, and wherein the interworking function is used as a drift radio network controller for the mobile communications network; wherein the mobile communications network has a serving radio network controller, and a user plane interface is disposed between the interworking function and the serving radio network controller, wherein the mobile communications network further includes a serving general packet radio service support node, a gateway general packet radio service support node, and a node B; means for forming a data path from a user equipment to the interworking function to the serving radio network controller to the serving general packet radio service support node to the gateway general packet radio service support node; and means for forming a control path from the user equipment to the node B to the serving radio network controller to the serving general packet radio service support node to the gateway general packet radio service support node; and means for performing call admission control by the interworking function, wherein the means for performing call admission control employs at least one of a type of service assigned by the interworking function, a type of dedicated/common transport channel requested by the serving radio network controller, and wireless local area network resources available in an access point to which a user equipment will attach. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification