| 摘要 |
A method including at a first device configured for making one or more transmissions to a second device in one or more of a plurality of frequency blocks and configured to receive respective timing commands for each of said plurality of frequency blocks: determining that the most recently received timing commands for each of the plurality of frequency blocks are all valid, when a predetermined period of time has not expired since receiving the most recent timing command for any one of said plurality of frequency blocks. |
