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Three GPP (3GPP) Long Term Evolution (LTE)

Long Term Evolution (LTE) is the next-generation high-performance communication interface for cellular mobile technology. It is the project of the 3rd Generation Partnership Project (3GPP) [1]. LTE is marketed as 4G, which provides improved bandwidth, lower cost of ownership and enables many multi-media services. LTE theoretically can offer up to 326 Mbps in the downlink and up to 226 Mbps in the uplink with 20MHz 4x4 MIMO antenna [2, 3]. The recognized sector data peak rate as provided in [2] depends on the frequency spectrum bandwidth used. According to [3], LTE has capabilities to be deployed in clear spectrum with bandwidth as high as 20 MHz. The high bandwidth of a single carrier radio will allow scope for significantly larger coverage capacity and ability to support a higher number of points compared to 3G-3.5G technologies attached to the 5MHZ or smaller spectrum bandwidth.

Nortel [4] summarizes features & benefits of LTE as follows:

- Higher data speeds. With download speeds up to 100 Mbps and upload speeds up to 50 Mbps, LTE copes with the most stringent requirements of current and future applications.
- Higher capacity. Providing an order of magnitude higher capacity than current WCDMA networks, LTE will serve thousands of subscribers per square mile/square kilometer. This capacity will be required as we move into a hyperconnected world, where the number of connected devices exceeds the number of subscribers.
- Lower latency. Low latency is critical for real-time and interactive applications like VoIP and on-line gaming. LTE offers a latency in the range of 10-20 msec round trip, improving the network response time between 50-200% when compared to the most advanced 3G networks.

- BTS Form factors to address all coverage needs
- Accelerated deployment and implementation with compact base stations, remote radio heads, cable reduction technology and integrated backhaul solutions
- Lower installation costs with fewer nodes to deploy and manage. Nortel's patented RF cable reduction and integrated backhaul solutions also help ease and speed rollouts.
- Superior network efficiency with Nortel's proven leadership in world class Power Amplifier and Radio designs, resulting in lower power consumption, reduced battery backup, reduced noisy cooling systems and easier deployments with smaller and lighter solutions."


LTE can serve as a communication platform for sending energy data from customers' meters to utility companies.

Key Technology Area: 
Integrated Communications

Sample Vendors:

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