METHOD AND NODE FOR IMPROVING ERROR RATE PERFORMANCE BASED ON PACKET HEADER INFORMATION

摘要

The embodiments herein relate to a method in a first network node (101) for handling data packets in a communications system (100). The first network node (101) comprises a memory having stored on it at least part of a first header associated with a first data packet. The first network node (101) receives, from a second network node (105), a second data packet comprising a second header. The first network node (101) determines side information bits for the second data packet based on that at least part of the second header is assumed to be equal to or associated with the stored at least part of the first header. The first network node (101) performs at least one of channel estimation and decoding of the second data packet in which the side information bits for the second data packet are used as a priori information.