Dynamic channel selection and DFS re-entry
First Claim
1. A wireless network device configured to operate within a wireless network, the wireless network device comprising:
- a wireless interface operable on a plurality of wireless channels;
a memory; and
a processor configured to,synchronize for each of the plurality of wireless channels, a set time duration with other wireless network devices that are operable in the wireless network,scan each of a plurality of channels for the synchronized set time duration when a rate of data arriving in a transmit queue of the wireless network device is less than a threshold such that the synchronized set time duration that the wireless device scans each of the plurality of channels is same as the synchronized set time duration each of the other wireless network devices scans same,make a channel quality assessment measurement during the set time duration for each of the plurality of channels,compare the channel quality assessment measurement for each channel with other channel quality assessment measurements from other network devices that are operable in the wireless network thereby to enable determination of a desired channel for communication between the wireless network device and the other network devices, andoperate on the desired channel.
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Accused Products
Abstract
A wireless network device, for operation within a wireless network, the wireless network device comprising: a wireless interface operable on one or more wireless channels; a memory; and a processor configured to: scan at least one channel for a predetermined time duration; and make a channel quality assessment measurement during the predetermined time duration, wherein the processor is adapted to synchronize the predetermined time duration with other wireless network devices that are operable in the wireless network and that scan the at least one channel and make channel quality assessment measurements during substantially the same predetermined time duration, wherein the channel quality assessment measurement is compared with other channel quality assessment measurements from other network devices that are operable in the wireless network thereby to enable determination of an optimal channel for communication between the network devices and wherein the wireless network device is configured to operate on the optimal channel.
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Citations
19 Claims
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1. A wireless network device configured to operate within a wireless network, the wireless network device comprising:
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a wireless interface operable on a plurality of wireless channels; a memory; and a processor configured to, synchronize for each of the plurality of wireless channels, a set time duration with other wireless network devices that are operable in the wireless network, scan each of a plurality of channels for the synchronized set time duration when a rate of data arriving in a transmit queue of the wireless network device is less than a threshold such that the synchronized set time duration that the wireless device scans each of the plurality of channels is same as the synchronized set time duration each of the other wireless network devices scans same, make a channel quality assessment measurement during the set time duration for each of the plurality of channels, compare the channel quality assessment measurement for each channel with other channel quality assessment measurements from other network devices that are operable in the wireless network thereby to enable determination of a desired channel for communication between the wireless network device and the other network devices, and operate on the desired channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a plurality of wireless network devices configured to operate in a wireless network, the plurality of wireless network devices each including, a wireless interface operable on a plurality of wireless channels; a memory; and a processor configured to, synchronize for each of the plurality of wireless channels, a set time duration with other ones of the plurality of wireless network devices that are operable in the wireless network, scan each of a plurality of channels for the synchronized set time duration when a rate of data arriving in a transmit queue of the wireless network device is less than a threshold such that the synchronized set time duration that the wireless device scans each of the plurality of channels is same as the synchronized set time duration each of the other ones of the plurality wireless network devices scans same, and make a channel quality assessment measurement during the synchronized set time duration for each of the plurality of channels, wherein at least one wireless network device of the plurality of wireless network devices is configured to, compare the channel quality assessment measurement made by each of the plurality of wireless network devices for each of the plurality of channels thereby to determine a desired channel for communication between the at least one wireless network device and the other ones of the plurality of wireless network devices, and initiate switching of the other ones of the plurality of wireless network devices to operate on the desired channel.
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19. A method of operating a wireless network device in a wireless network, the method comprising:
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scanning each of a plurality of channels for a set time duration when a rate of data arriving in a transmit queue of the wireless network device is less than a threshold; making a channel quality assessment measurement during the set time duration for each of the plurality of channels; synchronizing the set time duration for each of the plurality of channels with other wireless network devices that are operable in the wireless network and that scan the at least one channel and make channel quality assessment measurements during the synchronized set time duration for each of the plurality of channels such that the synchronized set time duration that the wireless device scans each of the plurality of channels is same as the synchronized set time duration each of other ones of the plurality wireless network devices scans same; comparing the channel quality assessment measurement with other channel quality assessment measurements for each of the plurality of channels from other network devices that are operable in the wireless network thereby to enable determination of a desired channel for communication between the wireless network device and the other network devices; and operating the wireless network device on the desired channel.
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Specification