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UMTS: Alive and Well - 4G Americas

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Cell-average <strong>and</strong> Cell-edge Spectrum EfficiencyHigh Speed Environment (Downlink)• LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfillsITU-R requirements• Further improved performance can be achieved by using additional technology features(e.g., MU-MIMO 4x2, MU-MIMO 8x2, <strong>and</strong> LTE Rel. 8 single-layer BF 8x2)Downlink spectral efficiency (FDD), RMaITU-R NumberScheme <strong>and</strong> antennaCell average [b/s/Hz/cell] Cell edge [b/s/Hz]Requirement ofconfiguration(Ave./Edge) samples L=1 L=2 L=3 L=1 L=2 L=3Rel. 8 SU-MIMO4 x 2 (C)1.1 / 0.04 15 2.3 2.1 1.9 0.081 0.076 0.069Rel. 8 SU-MIMO4 x 2 (A)1.1 / 0.04 14 2.1 2.0 1.8 0.067 0.063 0.057MU-MIMO 4 x 2 (C) 1.1 / 0.04 3 3.9 3.5 3.2 0.11 0.099 0.090MU-MIMO 8 x 2 (C) 1.1 / 0.04 1 4.1 3.7 3.4 0.13 0.12 0.11Downlink spectral efficiency (TDD), RMaITU-R Number Cell averageScheme <strong>and</strong> antennaCell edge [b/s/Hz]Requirement of[b/s/Hz/cell]configuration(Ave./Edge) samples L=1 L=2 L=3 L=1 L=2 L=3Rel. 8 SU-MIMO4 x 2 (C)1.1 / 0.04 8 2.0 1.9 1.8 0.072 0.067 0.063Rel. 8 SU-MIMO4 x 2 (A)1.1 / 0.04 7 1.9 1.7 1.6 0.057 0.053 0.049MU-MIMO 4 x 2 (C) 1.1 / 0.04 4 3.5 3.2 3.0 0.098 0.089 0.083MU-MIMO 8 x 2 (C/E) 1.1 / 0.04 2 4.0 3.6 3.4 0.12 0.11 0.10Rel. © 8 single-layer 3GPP 2009 Mobile BF 2.38 x 2 (E)2.1 0.11 0.10 0.093 58Cell-average <strong>and</strong> Cell-edge Spectrum EfficiencyHigh Speed Environment (Uplink)• LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements• Further improved performance can be achieved by using additional technology features(e.g., CoMP 2x4, <strong>and</strong> MU-MIMO 1x8)Scheme <strong>and</strong> antenna configurationRel. 8 SIMO 1x4 (C)Rel. 8 MU-MIMO 1x4 (A)CoMP 2 x 4 (A)Scheme <strong>and</strong> antenna configurationRel. 8 SIMO 1 x 4 (C)Rel. 8 MU-MIMO 1 x 4 (A)CoMP 2 x 4 (A)MUMIMO 1 x 8 (E)Uplink spectral efficiency (FDD), RMaITU-RRequirement(Ave./Edge)0.7 / 0.0150.7 / 0.0150.7 / 0.015Number ofsamples11Uplink spectral efficiency (TDD), RMaITU-RRequirement(Ave./Edge)0.7 / 0.0150.7 / 0.0150.7 / 0.0150.7 / 0.01522Number ofsamples8211Cell average[b/s/Hz/cell]1.82.22.3Cell average[b/s/Hz/cell]1.82.12.52.6Cell edge[b/s/Hz]0.0820.0970.13Cell edge[b/s/Hz]0.0800.0930.150.10© 3GPP 2009 Mobile World Congress, Barcelona, 19 th February 2009© 3GPP 2009 59www.3G<strong>Americas</strong>.org February 2010 Page 227

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