Multi-point coordinated transmission method based on limited feedback in heterogenous network system
A heterogeneous network and multi-point coordination technology, applied in diversity/multi-antenna systems, using return channels for error prevention/detection, space transmit diversity, etc., can solve problems such as system performance degradation and limited capacity of uplink feedback links , to achieve large performance gains, reduce feedback overhead, and improve feedback efficiency
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[0075] In order to have a clear understanding of the present invention, the method described in the present invention will be described in detail below with specific examples.
[0076] Specifically, in an embodiment of the present invention, the application scenario of a heterogeneous network system is as follows: a heterogeneous network involving multiple cells and multiple users is involved in coordinated scheduling and coordinated beamforming under limited feedback. The scenario of the network system is as follows: image 3 Shown. The entire heterogeneous network system consists of a base station eNB (macro base station) and two low-power RRHs (Remote Radio Heads), which are connected to the central eNB through optical fibers. These RRHs are only radio heads pulled from the central eNB. They only have transceiver functions but no signal processing capabilities. That is to say, these RRHs need to transmit informati...
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