Wireless lan backgroud scan method
First Claim
1. A method of determining the availability of a channel of a plurality of channels for communications by a station with access points in a wireless communication system, the method comprising:
- allocating channels available for assignment to the access points to a plurality of groups;
selecting a group from the plurality of groups;
checking the channels assigned to the selected group to determine a channel status of each channel in the selected group;
reporting the channel status of each channel of the selected group;
selecting another group from the plurality of groups; and
repeating the checking the channels, the reporting the channel status and the selecting another group.
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Accused Products
Abstract
A station divides all CHs available for assignment to an AP into a plurality of groups. CHs being included in one group are checked to determine whether or not there exists an AP that uses each of the CHs included in one group, based on an instruction of background scan from an OS and the like. Further, for CHs being included in the next group, the station checks whether or not there exists an AP that uses each of the CHs included in the next group based on the next instruction of background scan from an OS. As a result, the time required for one background scan can be reduced so as to have less impact on the communication the station is performing.
21 Citations
21 Claims
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1. A method of determining the availability of a channel of a plurality of channels for communications by a station with access points in a wireless communication system, the method comprising:
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allocating channels available for assignment to the access points to a plurality of groups;
selecting a group from the plurality of groups;
checking the channels assigned to the selected group to determine a channel status of each channel in the selected group;
reporting the channel status of each channel of the selected group;
selecting another group from the plurality of groups; and
repeating the checking the channels, the reporting the channel status and the selecting another group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of determining the availability of a channel for communications between a station and access points in a wireless communication system, the method comprising:
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(1) receiving an instruction to perform a background scan from an operating system (OS);
(2) determining if the background scan is in progress;
(3) completing the background scan in progress, and returning to step (1), else continuing to step (4);
(4) selecting a group of channels of m groups of channels, m being an intiger, the group of channels including the channel currently being used for communications by the station, each group of channels comprising n channels, n being an integer characteristic of each group of channels;
(5) storing channel information relating to a communications link which the station in the wireless communications system is currently using for communications;
(6) interrupting communications by the station;
(7) checking one of the n channels to determine if one of the access points is associated with the channel;
(8) storing a checking result for the checked channel;
(9) resuming communications by the station using the stored channel information;
(10) repeating the method starting at step(6), until the n channels in the group have been checked;
(11) selecting another one of the groups of channels and repeating the method, starting at step (6), until the m groups have been checked; and
(13) reporting the stored checking result for each checked channel to the OS. - View Dependent Claims (20, 21)
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Specification