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Distributed antenna system including crest factor reduction module disposed at optimum position

  • US 9,912,387 B2
  • Filed: 03/30/2016
  • Issued: 03/06/2018
  • Est. Priority Date: 12/30/2014
  • Status: Active Grant
First Claim
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1. A distributed antenna system, comprising:

  • a plurality of head-end devices each configured to receive mobile communication signals from at least one corresponding base station;

    a hub communicatively coupled to the plurality of head-end devices and separated from the plurality of head-end devices; and

    a plurality of remote unit devices communicatively coupled to the hub,wherein the hub is configured to distribute the mobile communication signals received from each of the plurality of head-end devices to the plurality of remote unit devices,wherein each of the plurality of remote unit devices is remotely disposed to transmit the distributed mobile communication signals to a terminal in a service coverage, andwherein the hub includes at least one processor to implement;

    a mixing processing unit configured to perform digital mixing processing on the mobile communication signals respectively received from the plurality of head-end devices, anda crest factor reduction (CFR) module that is disposed posterior to the mixing processing unit with respect to a downlink direction and performs CFR processing on the processed signals output from the mixing processing unit.

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