Patent ID: 7860087

Claim:
A method for distinguishing between protocol packets in a transmitting side of a wireless communication system, the method comprising: receiving an Internet Protocol (IP) packet comprising a User Datagram Protocol (UDP) header and a second header located after the UDP header, the second header related to one of a Real-Time Protocol (RTP) packet and a RTP Control Protocol (RTCP) packet; checking whether bits 9 through 15 of a payload type field of the second header correspond to a certain value; determining whether the second header is related to the RTP packet or the RTCP packet based on the certain value; and assigning a different quality of service for each of at least one of the RTP packet and the RTCP packet according to the determination, wherein the RTP packet and the RTCP packet are transmitted to a receiving side on different radio bearers, and a radio bearer carrying the RTCP packet has a lower priority than a radio bearer carrying the RTP packet.