Patent ID: 8009667
Filing Date: 2011-08-30
Classification: H04L,H04W

Abstract:
1. A node for use in a communications system that packs and fragments variable-length service data units (SDU) for mapping into variable length protocol data units (PDU), each PDU having a payload area, and a header area, each SDU being associated with a specified connection, the node comprising: a communications processor configured to pack and fragment service data units associated with a specified connection into a protocol data unit, including performing the following operations: the header area of the protocol data unit includes a length field specifying the length of the protocol data unit, and the payload area of the protocol data unit includes a packing subheader for each service data unit and each service data unit fragment packed in the payload area, the packing subheader specifying the length of a respective service data unit or a respective fragment.