Method and apparatus for packet transmission with header compression

摘要

Under the situation in a network including a transmitter and a receiver in which a transmitter converts a non-compressed packet to be transmitted into a full-header packet including a full header or a header-compressed packet including a compressed header, and sends the converted packet to the receiver, the transmitter sends at least important packet in the non-compressed packet to be transmitted as a full-header packet. The important packet means for example, a packet containing the data serving an important role when the data terminal eventually receiving each packet reproduces the audio and/or image in accordance with the data in each of the packet.