Chapter 12

Coordinated Multipoint Transmission and Reception (CoMP)

The multi-BS MIMO or network MIMO techniques are used for improving sector throughput and cell-edge throughput through multi-cell collaborative precoding, network coordinated beamforming, or inter-cell interference nulling. When a mobile station is at the cell edge, it may be able to receive signals from multiple cell sites, and the mobile station’s transmission may also be received at multiple cell sites. If the data transmission and signaling from multiple cell sites can be coordinated, the downlink performance can be significantly improved. This coordination can be similar to the interference avoidance techniques or the case where the same data is transmitted from multiple ...

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