Method and apparatus for determining appropriate channels...

Details Method and apparatus for determining appropriate channels... Method and apparatus for determining appropriate channels...

2007-03-23

2010-06-22

Trinh, Sonny (Department: 2618)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S464000, C455S450000

Reexamination Certificate

active

07742764

ABSTRACT:
During operation of a secondary communication system100, a device will perform spectrum sensing of certain channels (either by itself or as part of a group of nodes104). When activity is found on a channel from a primary user, other devices will be notified that the channel is not available for use. The device may then modify its spectrum sensing to assist another device (or group of devices) that have not yet found activity on a different set of channels. By assigning additional channels to devices with extra capacity, the overall spectrum-sensing efficiency and performance of the communication system100is raised.

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