| 摘要 |
In one aspect thereof the invention provides a method that includes transmitting a beacon frame from a first mesh point to a second mesh point; determining if a trigger frame is received at the first mesh point within some predetermined period of time from the second mesh point and, if the trigger frame is not received, transmitting a request to trigger frame from the first mesh point to the second mesh point. In another aspect thereof the invention provides a method that includes receiving a request to trigger frame at a first mesh point from a second mesh point and in response, transmitting an acknowledgment to the request to trigger frame to the second mesh point. A computer-readable medium storing program instructions to implement the methods is also disclosed, as are corresponding apparatus.
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