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Thursday, January 21, 2016

LTE Basic Parameters

This section will summarize the Basic parameters of the LTE:
ParametersDescription
Frequency rangeUMTS FDD bands and TDD bands defined in 36.101(v860) Table 5.5.1, given below
DuplexingFDD, TDD, half-duplex FDD
Channel codingTurbo code
Mobility350 km/h
Channel Bandwidth (MHz)
  • 1.4
  • 3
  • 5
  • 10
  • 15
  • 20
Transmission Bandwidth Configuration NRB : (1 resource block = 180kHz in 1ms TTI )
  • 6
  • 15
  • 25
  • 50
  • 75
  • 100
Modulation Schemes
UL: QPSK, 16QAM, 64QAM(optional)

DL: QPSK, 16QAM, 64QAM
Multiple Access Schemes
UL: SC-FDMA (Single Carrier Frequency Division Multiple Access) supports 50Mbps+ (20MHz spectrum)

DL: OFDM (Orthogonal Frequency Division Multiple Access) supports 100Mbps+ (20MHz spectrum)
Multi-Antenna Technology
UL: Multi-user collaborative MIMO

DL: TxAA, spatial multiplexing, CDD ,max 4x4 array
Peak data rate in LTE
UL: 75Mbps(20MHz bandwidth)

DL: 150Mbps(UE Category 4, 2x2 MIMO, 20MHz bandwidth)

DL: 300Mbps(UE category 5, 4x4 MIMO, 20MHz bandwidth)
MIMO
(Multiple Input Multiple Output)
UL: 1 x 2, 1 x 4

DL: 2 x 2, 4 x 2, 4 x 4
Coverage5 - 100km with slight degradation after 30km
QoSE2E QOS allowing prioritization of different class of service
LatencyEnd-user latency < 10mS

E-UTRA Operating Bands

Following is the table for E-UTRA operating bands taken from LTE Sepecification 36.101(v860) Table 5.5.1:
E-UTRA Table 5.5.1

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