LTE Advanced Key Features

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LTE refers to the advanced version of LTE that is being developed by 3GPP to meet or exceed the requirements of the International Telecommunication Union (ITU) for a true fourth generation radio-communication standard known as IMT-Advanced. 4G LTE, whose project name is LTE-Advanced, is being specified initially in Release 10 of the 3GPP standard, with a functional freeze targeted for March 2011.
Following is the Key Features for LTE Advanced:
§  Peak data rates: Downlink – 1 Gbps and  Uplink – 500 Mbps.
§  Spectrum efficiency: 3 times greater than LTE.
§  Peak spectrum efficiency: Downlink – 30 bps/Hz; Uplink – 15 bps/Hz.
§  Spectrum use: the ability to support scalable bandwidth use and spectrum aggregation where non-contiguous spectrum needs to be used.
§  Latency: from Idle to Connected in less than 50 ms and then shorter than 5 ms one way for individual packet transmission.
§  Cell edge user throughput to be twice that of LTE.
§  Average user throughput to be 3 times that of LTE.
§  Mobility: Same as that in LTE
§  Carrier Aggregation
§  Higher order MIMO
§  Relay nodes and Heterogeneous networks
§  Enhanced Inter-Cell Interference Coordination
§  Coordinated Multipoint (CoMP) Transmission – Formalized in 3GPP Release 11


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