METHOD AND APPARATUS FOR CLASSIFYING AND TRANSMITTING A REALTIME TRANSPORT PROTOCOL PACKET AND A REALTIME TRANSPORT PROTOCOL PACKET IN A MOBILE COMMUNICATION SYSTEM

摘要

The present invention relates to a method demultiplexing in RB top group to separate the RTP packet and the RTCP packet and an apparatus, RTP packet and the RTCP packet will use different radio bearers, so only have the same IP address, request a different quality of service it is preferred that. In the present invention, the bit value of the PT field of the packet multiplexer receives the inverse or using a bit value of the field PT using the CID check information created by the PDCP layer provides a way to separate the RTP packet and the RTCP packet. In addition, in other embodiments of the present invention, call set-up when the RTP packet and the RTCP packet is an RTP packet and the UDP port number by using the SDP by using the UDP port number groups are available to the UE and the RNC, and the demultiplexing of the UE and the RNC to use the the separation between the RTCP packet. ; Therefore, in accordance with the present invention, there can be provided a way to easily distinguish between the RTP packets and the RTCP packets that have different characteristics in the mobile communication system of the UMTS system for providing VoIP service.; VoIP, RTP, RTCP, packet, RB, demultiplexer