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Communication unit, integrated circuit and method for generating a plurality of sectored beams

  • US 10,193,603 B2
  • Filed: 08/15/2014
  • Issued: 01/29/2019
  • Est. Priority Date: 08/16/2013
  • Status: Active Grant
First Claim
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1. A communication unit for generating a plurality of sectored beams, the communication unit comprising:

  • a plurality of antenna element feeds arranged to couple to a plurality of antenna elements of an antenna array, wherein an individual antenna element feed of the plurality of antenna element feeds is configured to provide a transmit signal associated with two sectors;

    a plurality of transmitters operably coupled to the plurality of antenna element feeds;

    wherein a transmitter of the plurality of transmitters is configured to receive a first signal associated with a first sector and a second signal associated with a second sector, the two sectors comprising the first sector and the second sector, and the transmitter comprises;

    beamformer logic arranged to apply independent beamform weights on the first signal and the second signal of the transmitter to generate a weighted first signal and a weighted second signal, respectively, wherein each of the independent beamform weights is allocated on a per sector basis; and

    a signal combiner arranged to combine the weighted first signal and the weighted second signal to produce a combined signal such that the combined signal supports sectored beams for the two sectors, wherein an output of the signal combiner is operably coupled to the individual antenna element feed, andwherein the beamformer logic is configured to apply a calibration correction coefficient so as to calibrate an amplitude and a phase of the combined signal.

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