09.07.2015 Views

Understanding LTE Model Internals and Interfaces

Understanding LTE Model Internals and Interfaces

Understanding LTE Model Internals and Interfaces

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1581 <strong>Underst<strong>and</strong>ing</strong> <strong>LTE</strong> <strong>Model</strong> <strong>Internals</strong> <strong>and</strong> <strong>Interfaces</strong>Brief Technology Introduction• Goals• To improve the UMTS st<strong>and</strong>ard to cope with future technology evolutions• User dem<strong>and</strong> for higher data rates <strong>and</strong> QoS• ~300 Mbps downlink, ~100 Mbps uplink• Continued dem<strong>and</strong> for cost reduction (CAPEX <strong>and</strong> OPEX)• Low complexity• Compatibility <strong>and</strong> inter-working with earlier 3GPP Releases• Introduced in 3GPP specification Release 8 <strong>and</strong> can be found in the 36-series• OFDMA in the downlink• SC-FDMA in the uplink• The resulting architecture is called EPS <strong>and</strong> comprises• E-UTRAN on the radio access side• EPC on the core side• Marketed as 4G• Actually a 3.9G technology• Doesn’t fully comply with the IMT Advanced 4G requirements.CONFIDENTIAL ─ RESTRICTED ACCESS: This information may not be disclosed, copied, or transmitted in any format without the prior written consent of OPNET Technologies, Inc. © 2010 OPNET Technologies, Inc.3

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