Demystifying LTE backhaul

LTE promises faster data rates at lower cost, improved spectral efficiency with reduced latency, and flexible channel bandwidth. To achieve these goals, LTE specifications deal with network elements beyond the air interface.

Most important and the key to LTE, is the simplicity of dealing with only one network protocol in an all-IP network while championing a flat packet-based architecture that eliminates separate controllers such as BSC and RNC devices.

LTE implementation significantly impacts every aspect of network design and operation. Network operators need to develop a comprehensive end-to-end network architecture, from cell site to core, that can work with and take advantage of all the benefits of the new LTE standard while simultaneously remaining capable of optimizing legacy 2G and 3G service delivery. Networks must support the complete range of technologies, services, deployments, and migration paths.

This white paper focuses on various aspects of network infrastructures and how they are affected by LTE implementation.