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Method device and system for indicating user equipment-specific demodulation reference signal

  • US 8,934,431 B2
  • Filed: 01/31/2011
  • Issued: 01/13/2015
  • Est. Priority Date: 02/05/2010
  • Status: Active Grant
First Claim
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1. A method for indicating a user equipment-specific demodulation reference signal, comprising:

  • generating signal indication information indicating information on a demodulation reference signal pattern, information on an antenna port and a scrambling identity of a reference signal sequence allocated for a user equipment based upon Transport Block (TB) indication information of TBs and control information of a plurality of bits; and

    transmitting the generated signal indication information to the user equipment, wherein the TB indication information of the TBs is TB indication information corresponding respectively to two TBs, and the control information of the plurality of bits is 3-bit or 4-bit control information, and indicating the information on the demodulation reference signal pattern, the information on the antenna port and the scrambling identity of the reference signal sequence allocated for the user equipment based upon the TB indication information of the TBs and the control information of the plurality of bits comprises;

    correspondingly indicate a total number N of allocation schemes respectively of the information on the demodulation reference signal pattern, the information on the antenna port and the scrambling identity of the reference signal sequence allocated for the user equipment based upon at least N pieces of indication information represented by the TB indication information of the TBs and the control information of the plurality of bits in combination,wherein the TB indication information corresponding respectively to the two TBs comprises first TB indication information representing a used first TB and second TB indication information representing a used second TB;

    or first TB indication information representing a used first TB and third TB indication information representing an unused second TB,wherein the demodulation reference signal pattern comprises the Rank-2 pattern, the first Rank-4 pattern and the Rank-8 pattern, wherein the Rank-2 pattern is a pattern for allocation of one or two antenna ports, the first Rank-4 pattern is a pattern for allocation of three or four antenna ports, and the Rank-8 pattern is a pattern for allocation of five, six, seven or eight antenna ports, andwherein indicating the information on the demodulation reference signal pattern, the information on the antenna port and the scrambling identity of the reference signal sequence allocated for the user equipment based upon the Transport Block (TB) indication information of the TBs and the control information of the plurality of bits comprises;

    correspondingly indicating twelve allocation schemes in total respectively comprising the Rank-2 pattern, the antenna port 0 and the scrambling identity0;

    or the Rank-2 pattern, the antenna port 0 and the scrambling identity1;

    or the Rank-2 pattern, the antenna port 1 and the scrambling identity0;

    or the Rank-2 pattern, the antenna port 1 and the scrambling identity1;

    or the Rank-2 pattern, the antenna port 0 and the antenna port 1, and the scrambling identity0;

    or the Rank-2 pattern, the antenna port 0 and the antenna port 1, and the scrambling identity1;

    or the first Rank-4 pattern, the antenna port 0, the antenna port 1 and the antenna port 2, and a default scrambling identity which is the scrambling identity0 or the scrambling identity1;

    or the first Rank-4 pattern, the antenna port 0, the antenna port 1, the antenna port 2 and the antenna port 3, and the default scrambling identity;

    or the Rank-8 pattern, the antenna port 0, the antenna port 1, the antenna port 2, the antenna port 3 and the antenna port 4, and the default scrambling identity;

    or the Rank-8 pattern, the antenna port 0, the antenna port 1, the antenna port 2, the antenna port 3, the antenna port 4 and the antenna port 5, and the default scrambling identity;

    or the Rank-8 pattern, the antenna port 0, the antenna port 1, the antenna port 2, the antenna port 3, the antenna port 4, the antenna port 5 and the antenna port 6, and the default scrambling identity;

    or the Rank-8 pattern, the antenna port 0, the antenna port 1, the antenna port 2, the antenna port 3, the antenna port 4, the antenna port 5, the antenna port 6 and the antenna port 7, and the default scrambling identity, allocated for the user equipment, according to at least twelve pieces of indication information represented by two scenarios represented by the TB indication information of the two TBs and eight pieces of control information represented by the 3-bit control information in combination.

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