EP3469718A1

Remote distributed antenna system employing reference signals in its wireless backhaul

Abstract

This record has no abstract on file.

Term

Projected expiry 7 June 2037.

  1. Priority
  2. Filed
  3. Published
  4. Today
  5. Projected expiry

20 claims: 3 independent, 17 dependent

  1. 1
    Claims of equivalent WO 2017214222 A1 CLAIMSWhat is claimed is:1. A system, comprising: communication circuitry that facilitates operations, comprising: receiving a plurality of signals operating in a plurality of cellular bands, the plurality of signals modulated according to a plurality of signaling protocols;frequency shifting the plurality of signals without modifying the plurality of signaling protocols by mixing a plurality of carrier wave signals with the plurality of signals to generate a plurality of frequency-shifted signals;combining the plurality of frequency- shifted signals with at least one reference signal;generating a transmission based on the plurality of frequency- shifted signals and the at least one reference signal;and directing the transmission wirelessly to a first remote antenna system of a distributed antenna system, the at least one reference signal enabling the first remote antenna system to reduce signal distortion when reconverting a first frequency- shifted signal of the plurality of frequency- shifted signals to a first signal of the plurality of signals in a first cellular band of the plurality of cellular bands.
  2. 16
    A method, comprising:receiving, by a circuit, a plurality of signals operating in a plurality of frequency bands, the plurality of signals modulated according to a plurality of signaling protocols;frequency shifting, by the circuit, the plurality of signals without modifying the plurality of signaling protocols by mixing a plurality of carrier wave signals with the plurality of signals to generate a plurality of frequency- shifted signals;combining, by the circuit, the plurality of frequency- shifted signals with at least one reference signal to generate a combined signal;and generating, by the circuit, a wireless transmission based on the combined signal, the at least one reference signal enabling a remote antenna system of a distributed antenna system to reduce signal distortion when reconverting a frequency-shifted signal of the plurality of frequency- shifted signals to a signal of the plurality of signals in a first frequency band of the plurality of frequency bands.
  3. 19
    A first system of a distributed antenna system, comprising:an antenna system;and communication circuitry that facilitates operations, comprising: wirelessly receiving, by the antenna system, a plurality of frequency- shifted signals and at least one reference signal from a second system of the distributed antenna system, the second system facilitating frequency shifting a plurality of signals operating in a plurality of frequency bands to the plurality of frequency-shifted signals without modifying a plurality of signaling protocols used to modulate the plurality of signals;frequency shifting a first frequency-shifted signal of the plurality of frequency- shifted signals to a first signal of the plurality of signals in a first frequency band of the plurality of frequency bands for wireless delivery to a first communication device, utilizing the at least one reference signal to reduce signal distortion during the frequency shifting;and retransmitting, by the antenna system, at least a portion of the at least one reference signal and at least a portion of the plurality of frequency- shifted signals to a third system of the distributed antenna system, at least the portion of the at least one reference signal enabling the third system to reduce signal distortion when reconverting a second frequency- shifted signal of at least the portion of the plurality of frequency- shifted signals to a second signal of the plurality of signals in a second frequency band of the plurality of frequency bands for wireless delivery to a second communication device.