Patent ID: 9125086
Filing Date: 2015-09-01
Classification: H04W

Abstract:
1. A wireless LAN communication device configured to carry out priority control of an EDCA scheme, the wireless LAN communication device comprising a computer to carry out functions comprising: a first determining section configured to determine access categories; a second determining section configured to determine a bandwidth occupancy rate for each access category; and a change section configured to dynamically change parameters regarding the priority control for each category in accordance with determination results of the first determining section and the second determining section, wherein, in the event the bandwidth occupancy rate determined by the second determining section is equal to or higher than a first bandwidth occupancy rate, when there are a plurality of categories to be determined by the first determining section, the change section executes a first optimization in which the change section temporarily increases both of a CWmin and a CWmax of the parameters regarding the priority control only by a predetermined value (α), and when there are no plurality of categories to be determined by the first determining section, the change section executes a second optimization in which the change section temporarily increases only the CWmin of the parameters regarding the priority control only by the predetermined value (α), and wherein, in the event the bandwidth occupancy rate determined by the second determining section is equal to or lower than the first bandwidth occupancy rate and equal to or higher than a second bandwidth occupancy rate, when there are a plurality of categories to be determined by the first determining section, the change section executes a third optimization in which the change section temporarily increases both of the CWmin and the CWmax of the parameters regarding the priority control only by a predetermined value (β), and when there are no plurality of categories to be determined by the first determining section, the change section executes a fourth optimization in which the change section temporarily increases only the CWmin of the parameters regarding the priority control only by the predetermined value (β).