Closed loop macro diversity method based on disturbance theory in coordinated multi-point system
A macro-diversity and cooperative base station technology, applied in the field of wireless communication, can solve the problems of high base station complexity, limited number of antennas, difficult cell traffic, etc., and achieve the effect of high spectrum efficiency and good outage probability performance
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[0027] The embodiment of the present invention discloses a closed-loop macrodiversity method based on a disturbance principle in a coordinated multipoint (CoMP) system, comprising the following steps:
[0028] A communication scenario in which multiple base stations serve one user together, that is, "closed-loop macrodiversity (CL-MD)". In the case that the channel information and data information are fully shared, each base station calculates the precoding matrix according to the local channel information of the served users, that is, W 1 , W 2 are the precoding matrices of base station 1 and base station 2 respectively, corresponding to the channel matrix H 1 and H 2 The right singular value matrix of . then W 1 and W 2 Feedback to the base station controller.
[0029] After receiving the feedback information from each base station, the base station controller adjusts the phase of each column of the right singular value matrix to obtain a higher combination gain of rec...
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