Header elimination for real time internet applications

摘要

The disclosed techniques provide for eliminating real-time transport protocol, RTP, extension bit X, marker bit M, time stamp and sequence number information and/or user data protocol, UDP, checksum information from the header of a packet for transmission.

主权项

1. A method of decompressing a header, comprising:
monitoring arrival times of packets at a receiver, the packets not including a real-time transport protocol (RTP) time stamp in a RTP header portion of the packets, and the packets including a medium access control-high speed (MAC-hs) time stamp in a MAC-hs header portion of the packets; determining the RTP time stamp of a currently received packet based on (i) a difference between the arrival time of the currently received packet and the arrival time of a previously received packet, and (ii) the MAC-hs time stamp in the MAC-hs header portion; and decompressing the RTP header portion of the currently received packet by inserting the determined RTP time stamp into the RTP header portion, and the decompressing includes reconstructing a RTP sequence number for the RTP header portion of the currently received packet based on (i) a received radio link control (RLC) unacknowledged mode (UM) sequence number associated with the currently received packet or (ii) a RTP sequence number for the previously received packet plus an increment.