Fairness provision via controlling a transmission opportunity window in a wireless mesh network
First Claim
1. A method of fairness provision via controlling a transmission opportunity window, comprising:
- obtaining a fairness metric during a mesh profile negotiation performed in order for a wireless station to join a wireless mesh network;
sending predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the wireless station to previously joined wireless stations in a predetermined neighborhood of the wireless station;
receiving from the previously joined wireless stations in the predetermined neighborhood of the wireless station their respective predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the respective wireless station; and
in response to a first predetermined event, determining a transmission opportunity window for the wireless station based on the obtained fairness metric, the predetermined mesh transmission parameters of the wireless station, and the predetermined mesh transmission parameters of the previously joined wireless stations, and based on maximizing a sum of ratios of an instantaneous data rate and the currently communicated average data rate for each wireless station.
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Accused Products
Abstract
The invention allows fairness provision in wireless mesh networks with respect to the data rate that stations communicate. A fairness metric is obtained during a mesh profile negotiation performed in order for a wireless station to join a wireless mesh network. Predetermined mesh transmission parameters of the wireless station are sent to previously joined wireless stations in a predetermined neighborhood of the wireless station. From the previously joined wireless stations their respective predetermined mesh transmission parameters are received. In response to a first predetermined event, a transmission opportunity window is determined for the wireless station based on the obtained fairness metric, the predetermined mesh transmission parameters of the wireless station, and the predetermined mesh transmission parameters of the previously joined wireless stations.
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Citations
19 Claims
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1. A method of fairness provision via controlling a transmission opportunity window, comprising:
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obtaining a fairness metric during a mesh profile negotiation performed in order for a wireless station to join a wireless mesh network; sending predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the wireless station to previously joined wireless stations in a predetermined neighborhood of the wireless station; receiving from the previously joined wireless stations in the predetermined neighborhood of the wireless station their respective predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the respective wireless station; and in response to a first predetermined event, determining a transmission opportunity window for the wireless station based on the obtained fairness metric, the predetermined mesh transmission parameters of the wireless station, and the predetermined mesh transmission parameters of the previously joined wireless stations, and based on maximizing a sum of ratios of an instantaneous data rate and the currently communicated average data rate for each wireless station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless station adapted to communicate with a wireless mesh network, the wireless station comprising:
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a first negotiation unit configured to obtain a fairness metric during a mesh profile negotiation performed in order for a wireless station to join the wireless mesh network; a second negotiation unit configured to send predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the wireless station to previously joined wireless stations in a predetermined neighborhood of the wireless station, and to receive from the previously joined wireless stations in the predetermined neighborhood of the wireless station their respective predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the respective wireless station; and a controller configured to determine a transmission opportunity window for the wireless station based on the obtained fairness metric, the predetermined mesh transmission parameters of the wireless station, and the predetermined mesh transmission parameters of the previously joined wireless stations, and based on maximizing a sum of ratios of an instantaneous data rate and the currently communicated average data rate for each wireless station, in response to a first predetermined event. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory computer readable medium comprising a computer program for fairness provision via controlling a transmission opportunity window, the computer program comprising code configured to, when executed on a data-processing system, cause the data-processing system to:
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obtain a fairness metric during a mesh profile negotiation performed in order for a wireless station to join a wireless mesh network; send predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the wireless station to previously joined wireless stations in a predetermined neighborhood of the wireless station; receive, from each of the previously joined wireless stations in the predetermined neighborhood of the wireless station, predetermined mesh transmission parameters comprising a currently communicated average data rate and a last used transmission opportunity window of the respective wireless station; and in response to a first predetermined event, determine a transmission opportunity window for the wireless station based on the obtained fairness metric, the predetermined mesh transmission parameters of the wireless station, and the predetermined mesh transmission parameters of the previously joined wireless stations, and based on maximizing a sum of ratios of an instantaneous data rate and the currently communicated average data rate for each wireless station.
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Specification