| 摘要 |
Briefly, the invention concerns the issue of supporting link adaptation in a wireless network, and basically involves implicit signaling for link adaptation based on transfer of transmit duration information. More particularly, a designated originating node sends (S1) a first message, including an indication of a current transmit duration for transfer of a predetermined amount of information, to at least a designated receiving node. The current transmit duration corresponds to a currently assumed data link rate. The designated receiving node selects (S2) a desired data link rate for subsequent communication from the originating node, and then determines (S3) an updated transmit duration according to the selected data link rate. The receiving node sends (S4) a second message, including an indication of the updated transmit duration, to at least the designated originating node, and the originating node then determines (S5) an updated data link rate in response to the updated transmit duration. In particular, the transmit duration information may preferably be transferred in the existing duration field in the frames of contention-based network protocols with support for virtual carrier sensing. |
