Method for the exchange of data packets in a network of distributed stations, device for compression of data packets and device for decompression of data packets

摘要

The invention is related with network communication, in particular wireless networking. In order to improve bandwidth utilization, a header compression protocol is implemented in most wireless network systems, such as robust header compression ROHC for WLAN systems. When using multicast groups for data communication problems with ROHC are related with relative late initiation of stations that newly enter the multicast group.;The invention proposes an improved state machine for the compressor in order to overcome this drawback.;It is also proposed an improvement for the decompressors which omit sending positive acknowledgements in order to further improve compression efficiency.;The invention also concerns an accordingly improved method for the exchange of data packets in a network of distributed stations.