| 摘要 |
A method and devices for allowing communications between a central station and subscriber terminals along a frequency channel in a wireless network comprising a central station and a plurality of subscriber terminals, out of which at least one uses a scheduled based protocol. The method comprises: providing a plurality of time domain frames each comprising at least one first time interval for implementing schedule based protocol, and at least one second time interval for implementing a contention based protocol; scheduling a plurality of unconditioned transmissions in a plurality of present and/or future frames during the first time interval of corresponding time domain frames to/from the subscriber terminal(s) operating under the schedule based protocol; scheduling a plurality of conditioned transmission opportunities in a plurality of present and/or future frames during the second time interval of corresponding time domain frames to/from the terminals operating under the schedule based protocol; determining, prior to sending a conditioned transmission, whether the value of received power level is below a pre-defined threshold value and transmitting communications during the second time interval upon determining that this value does not exceed a pre-defined threshold. |
