Patent ID: 7204746
Filing Date: 2007-04-17
Classification: H04M,H04W

Abstract:
1. A wireless transmit/receive unit (WTRU) for communication in at least two types of wireless networks comprising: a protocol engine having at least two wireless communication interfaces, each wireless communication interface configured for wireless linking with a different type of wireless network; each communication interface configured to pass control signals and user communication data to a common application processing component; an application broker configured to monitor control signaling between the lower layer protocol engine and the upper layer application processing component; a communications broker having a data buffer and defining a switchable data path for user data between the upper layer application processing component and a selected one of the wireless interfaces; the application broker associated with the communications broker to control data buffering and data path switching by the communications broker such that data flowing to a first wireless interface of the protocol engine during a communication session is buffered while a wireless link is established with a different second wireless interface of the protocol engine for the communication session and the communication broker data path is switched to the second wireless interface and the buffered data is released there through after a wireless link is established for the communication session via the second wireless interface; the application broker includes an Application Session Manager configured to controls the signaling during the establishment of a wireless link through a different wireless interface and an inter-working unit configured to maintain and convert context information for transmission during the establishment of a wireless link through a different wireless; and the application broker includes a Subscriber Identity Module (SIM) reader configured to read a SIM containing a user's identity.