The LTE standard has made tremendous gains in the efficient use of Multiple-Input Multiple-Output (MIMO) and general smart antenna schemes, many of which have been increasingly applied to HSPA systems.
LTE is unique in requiring as a minimum that all terminals include a second receive antenna for receive diversity and downlink MIMO support.
This white paper provides specific details of the MIMO techniques and antenna configurations that have helped meet the burgeoning growth in mobile broadband demand. It also focuses on the transmit modes (TMs) and the appropriate antenna configurations that have proven themselves in field deployments.
This paper originally posted on 4G Americas website