Method and related apparatus for setting packet headers in a wireless communications system

摘要

A method for setting a header, having a header extension type field, of a protocol data unit in a radio link control layer of a wireless communications system includes configuring a “use of the special value of the header extension type field” mode, and setting the header extension type field to indicate that a last octet of the protocol data unit is a last octet of a service data unit when the last octet of the protocol data unit is the last octet of the service data unit and there is no concatenation of service data units inside the protocol data unit.

主权项

1. A method for setting a header, having a Header Extension Type (HE) field, of a protocol data unit (PDU) in a Radio Link Control (RLC) layer of a wireless communications system, the method comprising:
configuring a “use of the special value of the header extension type HE field” mode, wherein the HE field is a two-bit field (i) that is used by RLC Acknowledged Mode (AM), (ii) that can be used to indicate if a next octet is data or a combination of a Length Indicator (LI) and an Extension (E) bit, and (iii) that can be set to the special value to indicate that a last octet of the PDU is a last octet of a Service Data Unit (SDU) in the “use of the special value of the HE field” mode; setting the HE field to the special value when the last octet of the PDU is the last octet of the SDU and there is no concatenation of SDUs inside the PDU; and not setting the HE field to the special value when the last octet of the PDU is the last octet of the SDU and there is concatenation of SDUs inside the PDU, wherein the HE field is set to indicate the next octet is data or the combination of the LI and the E bit when the last octet of the PDU is the last octet of the SDU and there is concatenation of SDUs inside the PDU.