Layer 2 processing and creation of protocol data units for wireless communications

摘要

Enhanced MAC-es PDUs are created by concatenating enhanced MAC-es service data units (SDUs) based on higher layer PDUs and segments thereof, where segmentation information is included in the enhanced MAC-es headers. An enhanced MAC-e header is generated for each enhanced MAC-es PDU to describe information about the enhanced MAC-es PDU. An enhanced MAC-e PDU is created by concatenating enhanced MAC-es PDUs and enhanced MAC-e headers. An enhanced MAC-es header may include a Transmit Sequence Number (TSN) field, a Segmentation Description (SD) field, length (L) fields to indicate the length of each enhanced MAC-es SDU and/or logical channel indicator (LCH-ID) fields. An enhanced MAC-e header may include one or more logical channel indicator (LCH-ID) fields for corresponding enhanced MAC-es PDUs or MAC-s SDUs and length (L) fields.

主权项

1. A method for creating protocol data units (PDU) for enhanced dedicated channel (E-DCH) in wireless communications, the method comprising:
generating a plurality of enhanced medium access control (MAC-es) PDU, each enhanced MAC-es PDU comprising at least one enhanced MAC-es service data unit (SDU), wherein an enhanced MAC-es SDU comprises at least one of a complete higher layer PDU or a segment of a higher layer PDU; generating a plurality of enhanced MAC-e headers, each enhanced MAC-e header corresponding to an enhanced MAC-es PDU; adding a logical channel indicator (LCH-ID) field to the corresponding enhanced MAC-e header for identifying a logical channel for a corresponding enhanced MAC-es SDU; and concatenating the enhanced MAC-e headers and the enhanced MAC-es PDUs to form an enhanced MAC-e PDU.