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Wireless communication device and method for controlling transmission power

  • US 10,182,405 B2
  • Filed: 11/18/2016
  • Issued: 01/15/2019
  • Est. Priority Date: 04/30/2010
  • Status: Active Grant
First Claim
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1. A communication apparatus comprising:

  • reference signal generating circuitry, which, in operation, generates a first Sounding Reference Signal (SRS) which is to be transmitted periodically and a second SRS which is to be transmitted with a time interval between triggering and transmission that is different from a transmission time interval of the first SRS, both of the first SRS and the second SRS being reference signals for channel-quality estimation;

    offset setting circuitry, which, in operation, sets a first offset to control transmission power used to transmit the first SRS and sets a second offset to control transmission power used to transmit the second SRS, the second offset being different from the first offset; and

    a transmitter, which, in operation, transmits the first SRS with the transmission power controlled based on the first offset and to transmit the second SRS with the transmission power controlled based on the second offset.

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