Patent ID: 9693361
Date: 2017-06-27
CPC Classifications: H04L,H04W

Claim:
1. A co-existence cognitive radio that can operate within spectrum that is already being used by other radios, the co-existence cognitive radio comprising: (a) a radio frequency (RF) characterization unit to generate signal characterization data including parameters of RF signals within a plurality of RF bands received at a receive antenna, the RF signals being associated with one or more first radios that are operative within the corresponding RF bands but are not communicating with the co-existence cognitive radio, the RF characterization unit having a control input to receive requests for signal characterization data corresponding to RF signals within different RF bands; (b) a rate determination unit to receive the signal characterization data from the RF characterization unit and to use the signal characterization data to determine data rates that can be used by the co-existence cognitive radio to communicate with one or more second radios within RF bands already occupied by the one or more first radios, the rate determination unit having a control input to receive requests for rate and power information for use within different RF bands; (c) a decision making unit to select an RF band to co-occupy to communicate with the one or more second radios and to determine transmit parameters for use within the selected RF band based on the signal characterization data received from the RF characterization unit and the data rates received from the rate determination unit, the decision making unit being coupled to the control inputs of the RF characterization unit and the rate determination unit to send requests to the units for information about different RF bands; and (d) a configurable radio having an RF transmitter to generate an RF transmit signal and delivery the RF transmit signal to the one or more second radios using the selected RF band and the corresponding transmit parameters.