Channel information feedback method, user equipment, transmission data method and base station

Channel information feedback method, user equipment, transmission data method and base station

  • CN 102,957,515 B
  • Filed: 08/22/2011
  • Issued: 09/25/2018
  • Est. Priority Date: 08/22/2011
  • Status: Active Grant
First Claim
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1. a kind of channel information feedback method is used for cooperation cell feedback channel information, including:

  • Measure the channel quality of the down channel from the cooperation cell to user equipment;

    The cooperation cell is categorized into different cooperation cell classes according to measured channel quality;

    Based on the different channel quality sections corresponding to the different cooperation cell class, respectively different cooperation cell classesChoosing has the feedback of channel information pattern of different feedback enhancing degree, wherein for the higher channel quality area of channel qualityBetween corresponding cooperation cell class choose the bigger feedback of channel information pattern of feedback enhancing degree, and be that channel quality is lowerCooperation cell class corresponding to channel quality section chooses the smaller feedback of channel information pattern of feedback enhancing degree;

    AndUsing the selected feedback of channel information pattern with different feedback enhancing degree, being determined according to predetermined order will be toThe channel information of each cooperation cell feedback in the different cooperation cell class, and identified channel information is sent toEach cooperation cell,Wherein, the feedback of channel information pattern indicates the content of channel information to be feedback and calculates the channel information to be feedbackCalculation,Wherein, the channel information to be feedback be efficient channel quantitative information and phase only pupil filter angle information, andWherein, the calculation is one of the following:

    Combined optimization is carried out to the efficient channel quantitative information and the phase only pupil filter angle information simultaneously;

    AndIt is first independent to calculate the efficient channel quantitative information, then come on the basis of institute'"'"'s calculated efficient channel quantitative informationPhase only pupil filter angle information described in combined calculation.

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