Communication method and apparatus for header compression

摘要

A communication method and a related apparatus for header compression by using an automatic retransmission mechanism are disclosed. The method comprises determining with a receive end parameters required for performing header compression and an ARQ through negotiation, constructing a lower-layer PDU that comprises header compression information, and sending the PDU to a receive end. By using methods provided in the embodiments of the present invention, combination of a header compression mechanism and an ARQ mechanism may be implemented, thereby improving header compression efficiency and accuracy, and saving air interface resources.

主权项

1. A communication method for header compression by using an Auto-Repeat reQuest (ARQ) mechanism, comprising:
determining, by a transmit end and a receive end, parameters required for performing header compression and an ARQ through negotiation; constructing, by a lower-layer protocol data unit (PDU) constructing entity of the transmit end, a lower-layer PDU that comprises header compression information and sending the lower-layer PDU to the receive end; and interacting with the receive end to perform header compression, wherein the interacting with the receive end comprises determining, by an ARQ layer of the transmit end, through negotiation with the header compression layer, whether to retransmit an original data packet based on feedback information and related service data unit (SDU) information that is saved at the transmit end after receiving feedback from the receive end.