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

Claim 0:
1. An apparatus comprising:
a plurality of antennas;
a transceiver configured to transmit, receive, or both, signals to, from, or both, at least a first antenna of the plurality of antennas;
a communication detector coupled to the transceiver and configured to calculate a statistic including a cross-correlation of symbols indicative of radio frequency (RF) energy received from at least two of the plurality of antennas including the first antenna in a particular portion of a wireless spectrum via the transceiver,
the communication detector configured to provide a signal indicative of a presence or absence of a wireless communication signal in the particular portion of the wireless spectrum based, at least in part, on a comparison of the statistic with a threshold; and
a decoder/precoder configured to receive the signal indicative of the presence or absence of the wireless communication signal, wherein the decoder/precoder is further configured to power on into a power on state of the decoder/precoder responsive to receiving the signal indicative of the presence of the wireless communication signal, wherein the decoder/precoder is further configured to power off into a power off state of the decoder/precoder responsive to receiving the signal indicative of the absence of the wireless communication signal,
the communication detector configured to autocorrelate respective powers of the symbols indicative of RF energy received from the at least two of the plurality of antennas to calculate an additional statistic,
the communication detector configured to provide an additional signal indicative of an absence of the wireless communication signal in the particular portion of the wireless spectrum based, at least in part, on a comparison of the additional statistic with an additional threshold, and
wherein the decoder/precoder is further configured to power off into the power off state of the decoder/precoder responsive to receiving the additional signal indicative of the absence of the wireless communication signal.