Evolution of mobile networks

3GPP is in the process of defining the long-term evolution (LTE) for 3G, in order to maintain the future competitiveness of 3G technology. The main targets for this evolution concern increased data rates, improved coverage, and reduced latency. Taken together these results in significantly improved service provisioning and reduced operator costs in a variety of traffic scenarios. This paper discusses main requirements of the LTE and provides basic features, including network architecture and channel concept.