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Multi-antenna system design for 3GPP LTE

Standardization work is nearly complete on long term evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network which is aimed for commercial deployment in 2010. Goals for the evolved system include support for improved system capacity and coverage, high peak data rates, low latency, reduced operating costs, multi-antenna support, flexible bandwidth operations and seamless integration with existing systems. To reach these goals, a new design for the air interface including state-of-art multi-antenna technology needs to be deployed. This paper provides a look at different multi-antenna schemes for LTE downlink and uplink. The paper also discusses various Node-B antenna configurations and summarizes the performance of different multi-antenna schemes under various scenarios.