LTE-Advanced promises to deliver upward of 1Gbps peak downlink data rates to deliver true 4G speeds.
LTE-Advanced enables enhanced cell edge performance, much improved radio interference mitigation and spectrum reuse via carrier aggregation like features.
Users will get access to real-time HD voice and video services and fewer dropped calls. Operators get increased network capacity and efficiency to keep pace with traffic demands along with monetized mobile broadband to support their revenue goals.
That is what i know about LTE-advanced.