Method and apparatus to select coding mode

Method and apparatus to select coding mode

  • CN 1,961,519 B
  • Filed: 03/22/2005
  • Issued: 11/13/2013
  • Est. Priority Date: 04/13/2004
  • Status: Active Grant
First Claim
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1. one kind is used for the method for in multiple-input and multiple-output transmitter receiver system, launching, and comprising:

  • According to feedback data packet, selecting adaptively will maybe will be by the coding mode of each orthogonal frequency division multiplex OFDM sub-carrier of multiplexer mode coded data stream by the diversity mode coding, and wherein said feedback data packet comprises the coding marshalling information with coded message relevant with selected OFDM sub-carrier;

    , based on the coding marshalling information of described feedback data packet, will organize into groups in first group according to the sub-carrier of described multiplexer mode coding;

    , based on the coding marshalling information of described feedback data packet, will organize into groups in second group according to the sub-carrier of described diversity mode coding;

    Sub-carrier by described first group of first line emission is also passed through the sub-carrier of second group of the second antenna transmission;

    According to the coding marshalling information self-adapting ground that receives with described feedback data packet, receiver is organized into first at least and receives unit and the second reception unit;

    Receive by described first the sub-carrier that unit is encoded according to multiplexer mode with multiplexing code decoding scheme decoding;

    AndReceive unit by described second and decode according to the sub-carrier of diversity mode coding with diversity code decoding scheme,Wherein, transmit for diversity mode, coding is used for the identical inflow position of the data flow of transmitting on a plurality of transmitting antennas, by employing time dispersive channel attribute, to obtain sensitivity, wherein for diversity mode transmission, a upper symbol that sends in described antenna is delayed with respect to the same-sign of another the upper transmission in described antenna.

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