Avoiding exposed node problems in wireless local area networks
A wireless local area network, CC-RTS technology, applied in the direction of data exchange network, digital transmission system, electrical components, etc.
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[0027]A wireless LAN network may use a common control protocol (CCC). The CCC protocol is a MAC protocol that extends the IEEE802.11 distributed MAC protocol so that multiple channels can be used in a BSS or mesh network. The CCC protocol defines a flexible channel access structure based on distributed priority contention-based media access. The CCC protocol distinguishes two logical channel functions: Control Channel (CC) and Data Channel (DC). In the following description, a station or network point observing the CCC MAC protocol is called a "node". Nodes exchange control and management frames on the control channel. The data channel carries data services.
[0028] Reservations for transmission on the various data channels are made by exchanging control frames on the control channels. As an extension of the traditional RTS and CTS messages, CC-RTS and CC-CTS are used to reserve the data channel for the time taken to transmit a transmission opportunity (TXOP). As specifi...
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