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Radio base station apparatus, radio communication system and radio communication method

  • US 9,240,831 B2
  • Filed: 11/16/2012
  • Issued: 01/19/2016
  • Est. Priority Date: 12/05/2011
  • Status: Active Grant
First Claim
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1. A radio base station apparatus comprising:

  • a plurality of transmitting antennas;

    a weight multiplication section that, when at least one of a downlink control channel, a broadcast channel and a cell-specific reference signal is transmitted with fewer transmission layers than a number of all transmitting antennas, a smaller number of antennas than the number of all transmitting antennas are made virtual, and transmission signals are multiplied by transmission weights that make an average transmission power of each of the transmitting antennas or transmission streams the same; and

    a transmission section that transmits signals multiplied by the transmission weights in the weight multiplication section from the transmitting antennas.

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