Mechanisms to extend UMA or GAN to inter-work with UMTS core...

Multiplex communications – Communication over free space

Reexamination Certificate

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C370S446000, C455S436000

Reexamination Certificate

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08045493

ABSTRACT:
A network controller operates in an unlicensed wireless communication system including a first radio access network. The network controller includes a Up interface for communicating with a mobile station and an IP network interface. The network controller includes a network interface for connecting the network controller to a UMTS core network that is accessible to a second radio access network that includes a UTRAN. The network interface includes an Iu-CS interface to communicate with a MSC in the UMTS core network. The network interface supports signaling protocols for circuit-switched services while inter-working with the UMTS core network via the Iu-CS interface using a layered protocol that includes a RANAP layer over a SCCP layer and several Iu-CS control plane lower layers. The network controller includes modules for generating and/or processing messages transmitted over the network interface. The network controller appears to the UMTS core network as a UTRAN RNC.

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