3GPP Long Term Evolution

This is summary 3GPP Long Term Evolution from www.wikipedia.org

Long Term Evolution (LTE) is the next step forward in cellular 3G services. LTE is designed to meet carrier needs for high-speed data and media transport as well as high-capacity voice support well. Many methods employed in LTE are relatively new in cellular applications. These include OFDM, OFDMA, MIMO and Single Carrier Frequency Division Multiple Access (SC-FDMA). LTE employs OFDM for downlink data transmission and SC-FDMA for uplink transmission. LTE is a leading OFDMA-based, wireless mobile broadband technology supported by a new Evolved Packet Core (EPC) network. Designed from the ground up to provide interoperability and service continuity with existing UMTS networks.

LTE incorporates many key features that enable operators to provide an enhanced broadband experience:

- OFDMA on the DL and SC-FDMA on the UL

- Advanced antenna techniques (MIMO, SDMA, Beamforming)

- Enhanced Interference Control

- Single Frequency Network multicast services

- All-IP packet-optimized network architecture

WiMAX and 3GPP LTE are the two wireless technologies beyond the 3G technologies that will eventually be used to deliver data at a very high speed (up to 100mbit/s for WiMAX and up to 300Mbit/s for LTE). This high speed offered by the two technologies is fast enough to potentially replace cable broadband connections with wireless and enabled some existing services currently deemed to be too bandwidth-hungry to be delivered using existing mobile technologies.