Patent ID: 7002935
Filing Date: 2006-02-21
Classification: H04L,H04M,H04W

Abstract:
1. A real time data transmission system for uplink and downlink transmissions between a mobile station and a destination station, the mobile station in the uplink transmission adding to a payload data stream by generating a header containing its own identity and a destination identity to accompany the payload in the data stream, a radio network controller upon receiving the data stream adding to the header a tunnel identity obtained from a call control system to identify the data stream and then directing the data stream directly to a media gateway, the media gateway in the downlink transmission receiving a data stream including a header containing the mobile station identity and a mobile station input port identity obtained from a serving general packet radio system support node (SGSN), the media gateway acting to replace both the mobile station identity and the input port identity in the header of the received downlink data stream with an address of the radio network controller, the input port identity and the tunnel identity for identifying the received downlink data stream, all obtained from the call control system and then directing the received downlink data stream directly to the radio network controller, the radio network controller acting to replace the radio network controller address in the header of the received downlink data stream with the mobile station identity address and input port identity both obtained from the call control system via the SGSN and responding to the tunnel identity data received to identify the received downlink data stream and then to direct the received downlink data stream to a corresponding radio bearer linking it to the mobile station.