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Apparatus for controlling modulation and coding scheme depending on communication speed

  • US 9,642,092 B2
  • Filed: 03/24/2014
  • Issued: 05/02/2017
  • Est. Priority Date: 04/24/2013
  • Status: Active Grant
First Claim
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1. A base station that performs wireless communication with a first apparatus and that performs wired communication with a second apparatus, the base station comprising:

  • a memory; and

    a processor coupled to the memory and configured to;

    determine, a first communication speed of the wireless communication;

    determine, a second communication speed of the wired communication;

    measure a wireless error rate of the wireless communication;

    determine, when the wireless error rate is lower than or equal to a certain percentage, whether the first communication speed of the wireless communication is higher than the second communication speed of the wired communication, andchange, when the first communication speed of the wireless communication is higher than the second communication speed of the wired communication, a currently set modulation and coding scheme to a different modulation and coding scheme corresponding to the second communication speed of the wired communication, a rate of the different modulation and coding scheme being lower than a rate of the currently set modulation and coding scheme;

    reduce, after changing the currently set modulation and coding scheme to a modulation and coding scheme corresponding to the second communication speed of the wired communication, a transmit power of a wireless signal of the wireless communication,the transmit power of the wireless signal is reduced while maintaining a third communication speed of the wireless communication higher than the second communication speed of the wired communication, the third communication speed of the wireless communication being obtained by correcting the first communication speed of the wireless communication based on the wireless error rate.

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