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Sounding signal in a multicarrier wireless device

  • US 9,204,406 B2
  • Filed: 01/17/2015
  • Issued: 12/01/2015
  • Est. Priority Date: 04/20/2012
  • Status: Active Grant
First Claim
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1. A wireless device comprising:

  • a) one or more communication interfaces;

    b) one or more processors; and

    c) memory storing instructions that, when executed, cause said wireless device to;

    i) receive at least one message comprising configuration parameters of;

    (1) a plurality of cells grouped into a plurality of cell groups; and

    (2) n sounding reference signals (SRSs) configured to be transmitted in a plurality of subframes, n being greater than one;

    ii) transmit, on a first cell of a first cell group in said plurality of cell groups, a packet in a plurality of symbols of a first subframe in said plurality of subframes, said plurality of symbols comprising the last symbol of said first subframe;

    iii) transmit a first subset of said n SRSs in said last symbol, said first subset consisting of k SRSs, wherein 1<

    =k<

    n; and

    iv) drop a second subset of said n SRSs in said last symbol, said second subset consisting of m SRSs, wherein 1<

    =m<

    n.

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