Spectrum efficiency DL : 3-4 timesUL : 2-3 times
Frequency Spectrum Scalable bandwidth : 1.4, 3, 5, 10, 15, 20MHzTo cover all frequencies of IMT-2000: 450 MHz to 2.6 GHz
Peak data rate DL : > 100Mb/s for 20MHz spectrum allocationUL : > 50Mb/s for 20MHz spectrum allocation
Latency C-plane : < 100ms to establish U-planeU-plane : < 10ms from UE to server
Coverage Performance targets up to 5km, slight degradation up to 30km
Mobility LTE is optimized for low speeds 0-15km/h butconnection maintained for speeds up to 350 or 500km/h
Handover between 3G & 3G LTE
Real-time < 300msNon-real-time < 500ms LTE is aimed at minimizing cost and power consumption while ensuring backward-compatibility and a cost effective migration from UMTS systems. Enhanced multicast services, enhanced support for end-to-end Quality of Service (QoS) and minimization of the number of options and redundant features in the architecture are also being targeted.
The spectral efficiency in the LTE DownLink (DL) will be 3 to 4 times of that of Release 6 HSDPA while in the UpLink (UL), it will be 2 to 3 times that of Release 6 HSUPA. The handover procedure within LTE is intended to minimize interruption time to less than that of circuit-switched handovers in 2G networks. Moreover the handovers to 2G/3G systems from LTE are designed to be seamless.
3G LTE Requirements
3G LTE (Long-Term Evolution) was developed to meet the growing demand for high-speed mobile broadband and efficient communication. The key requirements for LTE include:
High Data Rates: LTE is designed to provide significantly faster data rates compared to previous generations. It supports download speeds up to 100 Mbps and upload speeds up to 50 Mbps under optimal conditions. These speeds are essential for supporting applications like HD video streaming, online gaming, and large file downloads.
Low Latency: LTE aims to reduce latency to less than 10 milliseconds for a fast and responsive user experience. This is crucial for real-time applications such as VoIP and video conferencing, where delays can negatively impact communication quality.
Improved Spectral Efficiency: LTE uses advanced technologies like OFDMA (for downlink) and SC-FDMA (for uplink) to improve spectral efficiency. This means more users can share the same bandwidth, allowing for better use of the available radio spectrum and accommodating higher user densities.
Seamless Mobility: LTE ensures that users experience uninterrupted service while moving across different cells or networks. This seamless handover between eNodeBs (evolved NodeBs) and between different types of networks (e.g., LTE to 3G) is essential for maintaining connectivity during mobility.
All-IP Architecture: LTE operates on an all-IP core network, which simplifies network management and reduces latency. This architecture enables better integration with internet services, voice over IP (VoIP), and multimedia applications.
Scalability and Flexibility: LTE is designed to scale easily, supporting various bandwidths (from 1.4 MHz to 20 MHz) and deployment scenarios (macro, micro, and femtocells). It can be used in both urban and rural environments, adapting to different network requirements.
In summary, 3G LTE is built to provide faster data speeds, low latency, efficient spectrum use, and flexible mobility solutions, making it suitable for a wide range of applications and network environments.