| 摘要 |
A transmission opportunity (TxOP) is granted for at least one first sub-channel of a composite channel to a plurality of collaborative nodes belonging to a collaborative group in a wireless communication network. A method comprises, at a collaborative node, upon detecting, during the granted transmission opportunity, an end of occupancy of at least one second sub-channel different from said first sub-channel, managing the granted transmission opportunity to widen it to include said second sub-channel so that said managed transmission opportunity is for a widened set of sub channels made up of at least said first sub-channel and said second sub-channel. There is also provided a method for reserving such a transmission opportunity (TXOP) for a plurality of collaborative nodes belonging to a collaborative group in a wireless communication network. An embodiment describes use within a Wireless Local Area Network (WLAN) utilizing Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA). It is particular relevant to very high throughput (VHT) WLANs where channels may be combined to create a wider channel of wider bandwidth. |
