Patent ID: 11902411
Assignee: MICRON TECHNOLOGY, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An apparatus comprising:
a plurality of antennas;
a first transceiver configured to receive a first radio frequency (RF) signal from a first antenna of the plurality of antennas;
a second transceiver configured to receive a second radio frequency (RF) signal from a second antenna of the plurality of antennas;
a first communication detector coupled to the first transceiver and the second transceiver, the first communication detector configured to cross correlate symbols indicative of the first RF signal and symbols indicative of the second RF signal to calculate a first statistic including a cross-correlation of symbols indicative of the first RF signal and symbols indicative of the second RF signal, wherein the first communication detector is further configured to provide a first signal indicative of a presence or absence of encoded data in the first RF signal or the second RF signal based, at least in part, on a comparison of the first statistic with the first threshold;
a second communication detector coupled to the first transceiver and the second transceiver, the second communication detector configured to auto-correlate respective powers of the first and second RF signals to calculate a second statistic, wherein the second communication detector is further configured to provide a second signal indicative of a presence or absence of encoded data in the first RF signal or second RF signal based, at least in part, on a comparison of the second statistic with a second threshold; and
a decoder/precoder coupled to the first communication detector and configured to receive the first signal indicative of the presence or absence of the encoded data in the first RF signal or the second RF signal, wherein the decoder/precoder is further configured to power on responsive to receiving the first signal indicative of the presence of the encoded data in the first RF signal or the second RF signal, wherein the decoder/precoder is further coupled to the second communication detector and configured to receive the second signal indicative of a presence or absence of encoded data in the first RF signal or second RF signal, and wherein the decoder/precoder is further configured to power off responsive to receiving the second signal indicative of the absence of the encoded data in the first RF signal or the second RF signal.