Patent ID: 7398111

Claim:
A device comprising a processor configured to control said device to implement a method of operating a mobile node capable of operating in a plurality of states of operation, the method comprising: monitoring, during a first state of operation, a first control channel to detect control signals in segments of the first control channel intended for said mobile node, and to detect a period of reduced control signaling to said mobile node on said first control channel; in response to detecting said period of reduced control signaling to said mobile node on said first control channel, transitioning from said first state of operation to a second state of operation, wherein transitioning from said first state of operation to the second state of operation includes ceasing to monitor said first control channel; and while in said second state of operation: monitoring a second control channel to detect control signals in segments of the second control channel intended for said mobile node, and to detect a period of reduced control signaling to said mobile node on said second control channel; and in response to detecting a period of reduced control signaling to said mobile node on said second control channel, transitioning from said second state of operation to a third state of operation.