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US 8,879,996 B2Granted
Method to enable Wi-Fi direct usage in radar bands
AssigneeIntel Corporation
InventorsThomas J. Kenney, Eldad Perahia, Myron P. Hattig
Life of this patent
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Abstract
A method and system for allowing a client device to establish a direct communications session such as Wi-Fi Direct service using the 5 GHz band. In one embodiment, a client device first establishes a direct communications session, in the 2.4 GHz band with another client device, and then, based on the content used in that service, establishes a 5 GHz service if needed.
Claims18
A method for operating a device having an RF (radio-frequency) transceiver and capable of operating in a 2.4 GHz band and a 5 GHz band, comprising:
- as a group owner, establishing a direct communications service with one or more other devices using the 2.4 GHz band;
- scanning one or more DFS-required (Dynamic Frequency Selection-required) channels of the 5 GHz band for radar or other activity to determine their availability;
- if one or more channels of the 5 GHz band are available, moving at least part of the direct communications service with the other device from the 2.4 GHz band to the 5 GHz band if a higher quality of service is needed;
- and
- if at least part of the direct communications service has been moved to the 5 GHz band and channels in the 5 GHz band become unavailable due to radar, moving the direct communications service back to the 2.4 GHz band.
2 more elements
A device, comprising:
- an RF transceiver operated by a processor, wherein the device is capable of operating in a 2.4 GHz band and a 5 GHz band;
- wherein the processor is configured to:
- as a group owner, establish a direct communications service with one or more other devices using the 2.4 GHz band;
- scan one or more DES-required (Dynamic Frequency Selection-required) channels of the 5 GHz band for radar or other activity to determine their availability;
- if one or more channels of the 5 GHz band are available, move a least part of the direct communications service with the other device from the 2.4 GHz band to the 5 GHz band if a higher quality of service is needed;
- and
- if at least part of the direct communications service has been moved to the 5 GHz band and channels in the 5 GHz band become unavailable due to radar, move the direct communications service back to the 2.4 GHz band.
4 more elements
Dependencies are inferred from the claim text.