LTE-Advanced will extend performance through more powerful multi-antenna capabilities. For the downlink, the technology will be able to transmit in up to 8 layers using an 8X8 configuration for a peak spectral efficiency of 30 bps/Hz that exceeds the IMT-Advanced requirements, conceivably supporting a peak rate of 1 Gbps in just 40 MHz and even higher rates in wider bandwidths. This would require additional reference signals for channel estimation and for measurements such as channel quality to enable adaptive, multi-antenna transmission. LTE-Advanced will also include four-layer
transmission in the uplink resulting in spectral efficiency exceeding 15 bps/Hz.
Features of the LTE-advanced
There are a There is a lot of flexibility in terms of deployment options and
potential service offerings in the LTE-advanced, some of the most important
- OFDM for high spectral efficiency
- Support for TDD and FDD
- Adaptive Modulation and Coding (AMC)
- Support of variable bandwidth
- Very high peak data rates
- High speed Mobility
- Efficient worldwide roaming
- Solid Security
- Simultaneous user support
- Enhanced multi-antenna transmission techniques
LTE-advanced is a real broadband wireless network that provides peak data rates equal to or greater than those for wired networks, i.e., Fiber to the Home (FTTH), while providing better QoS. The major high-level requirements of LTE are reduced network cost (cost per bit), better service provisioning, and compatibility with 3GPP systems. At a minimum,
LTE-Advanced should support enhanced peak data rates to support advanced
services and applications (100 Mbps for high and 1 Gbps for low mobility were
established as targets for research).
For more information, see:
This report provides LTE strategies and technology analysis from 2012 to 2017. The research provides recommendations for mobile network deployment through 2017. It also includes market analysis of the cellular market and mobile handsets to 2015, key service developments, device advancements and more.