Patent ID: 7698577

Claim:
A communication device activation request system for restoring communication with a remote communication device, comprising: a sequence signal generator configured to generate a sequence signal, wherein the sequence signal is capable of cross correlation or is capable of auto correlation; a transmitter configured to receive and transmit the sequence signal; and a controller in communication with the sequence signal generator and the transmitter, the controller configured to: receive a request for communication from the communication device, wherein the communication device is in a non-active state; initiate generation of the sequence signal; initiate transmission of the sequence signal by the transmitter, wherein the sequence signal can be cross-correlated at a remote receiver to request and initiate active communication; send a restore active communication signal from the controller to the communication device after transmission of the sequence signal; a receiver configured to exchange channel condition information with the remote communication device if the remote communication device cross correlates or auto correlates the sequence signal.