METHODS FOR USING A DETECTOR TO MONITOR AND DETECT CHANNEL OCCUPANCY

摘要

Methods for using a detector to monitor and detect channel occupancy are disclosed. The detector resides on a station within a network using a framed format having a periodic time structure. When non-cooperative transmissions are detected by the network, the detector assesses the availability of a backup channel enabling migration of the network. The backup channel serves to allow the network to migrate transparently when the current channel becomes unavailable. The backup channel, however, could be occupied by another network that results in the migrating network interfering with the network already using the backup channel. Thus, the detector detects active transmission sources on the backup channel to determine whether the backup channel is occupied. Methods for using the detector include scheduling detection intervals asynchronously. The asynchronous detection uses offsets from a reference point within a frame.

主权项

1. A method comprising, in a cooperative network of radio frequency communication devices,
detecting a non-cooperative transmission on a first radio frequency channel; scheduling a detection interval in a plurality of frames among a plurality of devices in the network, wherein each detection interval is scheduled to begin at a different offset within the frame relative to offsets at which each other detection interval is scheduled.