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Method for relaying signals via a full-duplex, bi-directional relay

  • US 10,516,470 B2
  • Filed: 07/03/2019
  • Issued: 12/24/2019
  • Est. Priority Date: 02/11/2017
  • Status: Active Grant
First Claim
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1. A method comprising:

  • (a) receiving wireless downlink signals from a transmitter and transmitting the downlink signals to a backscatter node, in such a way that (i) the receiving and transmitting of the downlink signals are performed by an analog downlink relay, and (ii) the downlink signals have a first spectrum when transmitted by the downlink relay;

    (b) receiving wireless uplink signals from the backscatter node and transmitting the uplink signals to the transmitter, in such a way that (i) the receiving and transmitting of the uplink signals are performed by an analog uplink relay and (ii) the uplink signals having a second spectrum when received by the uplink relay from the backscatter node, the second spectrum being different than the first spectrum;

    wherein(I) the downlink relay includes a first analog filter,(II) the uplink relay includes a second analog filter, and(III) the method further comprises filtering the downlink and uplink signals by the first and second filters, respectively, in such a way as to attenuate a first leakage and a second leakage, the first leakage being leakage, to the uplink relay, of downlink signals transmitted by the downlink relay, and the second leakage being leakage, to the downlink relay, of uplink signals transmitted by the uplink relay.

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