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.

Abstract: Some embodiments provide a communication system that includes a first licensed wireless communication system, a second generic access network (GAN) that includes a generic access network controller (GANC). The GANC is communicatively coupled to the first communication system through a universal mobile telecommunication system (UMTS) terrestrial radio access network (UTRAN) Iu interface. The communication system also includes a user equipment (UE). The GANC includes a UDP protocol layer and a GTP-U protocol layer over the UDP protocol layer of the GANC. The UE includes a UDP protocol layer and a GTP-U protocol layer over said UDP protocol layer of the UE. The UDP protocol layer of the GANC is communicatively coupled to the UDP protocol layer of the UE. The GTP-U protocol layer of the GANC is communicatively coupled to the GTP-U protocol layer of the UE.

Abstract: Some embodiments of the invention provide a method of decoding an encoded video signal that includes a plurality of successive encoded images. The method initially receives an encoded image of the video signal. It then decodes the encoded image. The method next examines the decoded image to determine whether the decoded image satisfies at least one criterion for performing a post-filter operation on the decoded image. Only if the decoded image satisfies the criterion, the method performs the post-filter operation on the decoded image. The criterion in some embodiments is whether the amount of time for applying the post-filter operation exceeds the remaining amount of time that the method has to process the received image. Some embodiments of the invention provide a method of post-filtering a current image that was decoded from an encoded video signal, which includes a plurality of successive encoded images. The current image has several sub-sections. The method selects a sub-section of the current image.