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What is LTE ?

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LTE (Long Term Evolution) is a 4G mobile broadband communication standard. LTE is part of the GSM evolutionary path, following EDGE, UMTS, HSPA and HSPA+.

The overall objective for LTE is to provide an extremely high performance radio-access mobile data technology that offers full mobility (vehicular speed) and that can coexist with HSPA and earlier networks. LTE assumes full IP network architecture, it uses OFDMA (Orthogonal Frequency Division Multiple Access), boosts spectral efficiency, and operates in various radio channel sizes ranging from 1.4 to 20MHz.

LTE features include:
- scalable channel bandwidth from 1.4MHz to 20MHz
- downstream peak data rates of up to 326 Mbps (20MHz bandwidth)
- upstream peak data rates of up to 86.4 Mbps (20MHz bandwidth)
- increased spectral efficiency over rel.6 HSPA by two to four times
- reduced latency (up to 10ms rtt between user equipment and the base station, less than 100ms transition times from inactive to active)


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