Method and apparatus for transmitting data over wireless LAN mesh network
AssigneeElectronics and Telecommunications Research Institute
InventorsChang Ho Choi, Yong Wook Ra, Byung Jun Ahn, Kyeong Ho Lee
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Abstract
The present invention relates to a method and apparatus for transmitting data over a WLAN mesh network. Transmission sections of priority frames and general frames are initially set, and the priority frame transmission section is varied step-by-step within a specific range. Thus, QoS with respect to data requiring the real-time property can be guaranteed and transmission of general frames can be guaranteed to some degree. Accordingly, there is an effect that data transmission efficiency can be improved significantly.
Claims14
A method of transmitting data over a wireless local area network (WLAN) mesh network, the method comprising the steps of:
- setting sections for transmitting priority frames and general frames;
- when a priority frame transmission section is initiated, transmitting the priority frames;
- if a time taken to transmit the priority frames exceeds the priority frame transmission section, creating a stop to send (STS) control frame and sending the STS control frame to one or more surrounding nodes, wherein the STS control frame prompts the one or more surrounding nodes to limit creation of new priority frames;
- increasing a next priority frame transmission section by a unit time;
- after the priority frame transmission section is finished, starting transmission of the general frames;
- in a case in which the STS control frame has been received, limiting creation of additional priority frames;
- and
- when a node is not a lowest terminal in the WLAN mesh network, transmitting the STS control frame to lower nodes in the WLAN mesh network.
Dependencies are inferred from the claim text.