Method to enable Wi-Fi direct usage in radar bands

摘要

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.

主权项

1. A device, comprising:
one or more radio transceivers connected to one or more antennas and capable of operating in a 2.4 GHz band and a 5 GHz band; a processor with associated memory interfaced to the one or more radio transceivers; 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 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, move 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, move the direct communications service back to the 2.4 GHz band.