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SWITCHING SUB-SYSTEM FOR DISTRIBUTED ANTENNA SYSTEMS USING TIME DIVISION DUPLEXING

  • US 20150249513A1
  • Filed: 10/30/2013
  • Published: 09/03/2015
  • Est. Priority Date: 10/30/2013
  • Status: Active Grant
First Claim
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1. A switching control module comprising:

  • a measurement receiver configured for measuring a signal power in a downlink path of a distributed antenna system; and

    a processor communicatively coupled to the measurement receiver, wherein the processor is configured for optimizing time division duplexing operations of the distributed antenna system by;

    identifying a clock setting that controls a timing for generating switching signals that instruct at least one switch in an uplink path or the downlink path of the distributed antenna system to switch the distributed antenna system between an uplink mode and a downlink mode,determining multiple start times or end times for respective downlink sub-frames transmitted via the downlink path, wherein the processor is configured for determining each start time or end time based on the signal power measured by the measurement receiver exceeding a threshold signal power, andupdating the clock setting based on a switching time adjustment statistically determined from multiple switching time differentials, wherein each of the switching time differentials comprises a respective difference between the clock setting and a respective start time or end time.

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