Deliverable D4.1 Preliminary results on multi-antenna access and link enhancements

This report summarizes the intermediate work results of WP4 "Multi-antenna access and link enhancement". The investigated technologies are grouped into "Future-proof multi-service access solutions", "Massive MIMO enablers towards practical implementation" and "Advanced link management solutions assuming CRAN/DRAN deployments and/or massive MIMO". The relation to current 3GPP standardization is highlighted, and the relation to the use cases of WP2 as well as the selected technologies for the proof of concepts conducted by WP5 are discussed