The uplink signal using optimized rank 3 code book is launched and receives

The uplink signal using optimized rank 3 code book is launched and receives

  • CN 102,362,440 B
  • Filed: 04/13/2010
  • Issued: 08/03/2016
  • Est. Priority Date: 04/13/2009
  • Status: Active Grant
First Claim
Patent Images

1. the method that control subscriber equipment (UE) launches uplink signal via four antennas, described method includes:

  • Described uplink signal is mapped to three layers;

    Each execution discrete Fourier transform (DFT) in the signal of described three layers is extended;

    Use from codebook selecting meet 1 orThe specific pre-coding matrix of chordal distance carry out the layer signal of three DFT extensions described in precoding;

    Signal based on precoding generates Single Carrier-Frequency Division multiple access (SC-FDMA) symbol;

    AndDescribed SC-FDMA symbol is launched to base station (BS) via described four antennas,Wherein, described code book includes pre-coding matrixEach of which is multiplied by predetermined constant, andWherein, the layer signal of described three DFT extension is the periodic layer displacement of the column permutation by selected specific pre-coding matrix.

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