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.
Claims19
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 the priority frame transmission section is initiated, transmitting the priority frames;
- if the priority frames exceed a priority frame transmission section, creating a send to stop control frame and sending the send to stop control frame to surrounding nodes;
- increasing a next priority frame transmission section by a unit time;
- and
- after the priority frame transmission section is finished, starting transmission of the general frames.
An apparatus for transmitting data over a WLAN mesh network, the apparatus comprising:
- a priority decision unit that decides a priority of a data frame;
- a priority frame contention control unit that controls transmission of a priority frame according to a decision result of the priority decision unit;
- a general frame contention control unit that controls transmission of a general frame;
- a retransmission buffer and counter which stores a priority frame that has not been transmitted and controls the priority frame to be retransmitted;
- and
- an admission control unit that decides whether to admit transmission of a newly added priority frame.
Dependencies are inferred from the claim text.