LTE FOR UMTS: OFDMA AND SC-FDMA
BASED RADIO ACCESS
Presented by
P. RENGINI (EC0930)
M.Tech-II year (WC)
Under the guidance of
Dr. R. NAKKEERAN
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UNIT-I
Overview of LTE
Evolution beyond Release 8
LTE-Advanced for IMT-Advanced
IMT 2000
LTE Specifications
3GPP Structure
3GPP & 3GPP2
Evolutionary Path of Cellular Technology
System Architecture Evolution in 3GPP
Summary
References
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Evolution Beyond Release 8
Focuses on
- Release 9 topics
- LTE-Advanced for IMT-Advanced
Requirements:
1. LTE MBMS
- broadcast type data
- OFDMA based broadcast signal is sent
in same resource (if synchronized
properly).
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Contd…
2. Self Optimized Networks (SON) enhancements
3. Improvements for enhanced VoIP
- improve maximum no. of VoIP users
4. Multi-bandwidth and Multi-Radio Access Technology
BSs
- adjacent RFs are used for transmitting for both
LTE and GSM or LTE and WCDMA signals.
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LTE-Advanced for IMT-Advanced
ITU-R is developing the framework for next
generation wireless networks
Requirements:
1. support peak data rates upto
(i) 1 Gbps for nomadic (low mobility case)
(ii) 100 Mbps for the high mobility case
2. support larger BW (100MHz)
3. higher spectral efficiency
4. backward compatibility.
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