| 摘要 |
<p>In the preferred embodiment, the transmission of a packet with one of full-header or compressed header is determined according to the report of a lower layer, and preferably, regardless of any request from the receiver. Preferably, the determination is done in PDCP layer, and the lower layer is RLC layer. In one embodiment, the attachment of a full-header to a packet is triggered by the RLC report of transmission failure of prior packet. In another embodiment, one of the trigger of attachment of a full-header to a packet is excluded by the RLC report of transmission success of prior full-header packet. The transmission of full-header packets is preferably controlled based on feedback information of a lower layer indicating whether a previously transmitted full-header packet was successfully received by the receiver. The feedback information may be delivered from a data link layer such as an RLC layer to a header compression layer, which is preferably included in a PDCP layer.</p> |
