Content for TR 45.914 Word version: 18.0.0
8 Adaptive symbol constellation
8.1 Concept Description
8.2 Performance Characterization
8.3 Impacts on the Mobile Station
8.4 Impacts on the BSS
8.5 Impacts on Network Planning
8.6 Impacts on the Specification
8.7 Summary of Evaluation versus Objectives
8.8 References
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8 Adaptive symbol constellation p. 137
8.1 Concept Description p. 137
8.1.1 Symbol Constellation for the Downlink p. 137
8.1.2 -QPSK Modulator p. 138
8.1.3 Choice of Symbol Constellation p. 139
8.1.4 Adaptive Constellation Rotation p. 140
8.1.5 Frequency hopping p. 142
8.1.5.1 Legacy support p. 145
8.1.5.2 Additional signaling p. 145
8.1.6 SAM - Single Antenna MIMO - for VAMOS p. 145
8.2 Performance Characterization p. 147
8.2.1 Link Level Performance p. 147
8.2.1.1 Simulation assumptions p. 148
8.2.1.2 Sensitivity Performance p. 149
8.2.1.2.1 SAIC receiver p. 149
8.2.1.2.2 MUROS receiver p. 152
8.2.1.2.2.1 Symbol Constellation Detection p. 152
8.2.1.2.2.2 Constellation Rotation Detection p. 153
8.2.1.2.3 SIC receiver p. 154
8.2.1.3 Interference Performance p. 159
8.2.1.3.1 non-SAIC receiver p. 159
8.2.1.3.2 SAIC receiver p. 161
8.2.1.3.3 MUROS receiver p. 171
8.2.1.3.4 SIC receiver p. 172
8.2.1.3.4.1 Investigations by Telefon AB LM Ericsson p. 172
8.2.1.3.4.2 Investigations by ST-NXP Wireless France p. 176
8.2.1.3.5 SAM Receiver for VAMOS p. 185
8.2.1.4 Results from: MUROS - Performance of Alpha-QPSK with Legacy DARP MS p. 191
8.2.1.4.1 Simulation Assumptions p. 191
8.2.1.4.1.1 Legacy Terminals p. 191
8.2.1.4.1.2 Transmitted MUROS Signal p. 192
8.2.1.4.1.3 Alpha-QPSK p. 192
8.2.1.4.1.4 MUROS Interference Models p. 193
8.2.1.4.1.5 Other Simulation Parameters p. 193
8.2.1.4.2 Downlink Performance Results p. 193
8.2.1.4.2.1 Sensitivity Performance p. 193
8.2.1.4.2.2 MTS-1 Performance p. 194
8.2.1.4.2.3 MTS-2 Performance p. 195
8.2.1.4.2.4 MTS-3 Performance p. 196
8.2.1.4.2.5 MTS-4 Performance p. 197
8.2.1.4.3 Summary of Results p. 198
8.2.2 Network Level Performance p. 198
8.2.2.1 Adaptive constellation rotation p. 198
8.2.2.2 Support of legacy non-DARP Phase I receivers using ∝-QPSK p. 199
8.2.2.2a Downlink power control using ∝-QPSK p. 200
8.2.2.3 Evaluation of VAMOS MAIO hopping p. 202
8.2.2.3a MAIO Hopping Scheme Methodology p. 203
8.2.2.3a.1 MAIO Hopping Sequence Generation p. 203
8.2.2.3a.2 Channel Allocation and Adaptation p. 203
8.2.2.3a.3 Power Control p. 204
8.2.2.3a.4 Mechanism for Applying MAIO Hopping p. 204
8.2.2.3a.5 Penetration Levels and MS Types p. 204
8.2.2.3a.6 Link 2 System Interface p. 204
8.2.2.3a.7 System Performance Evaluation p. 204
8.2.2.4 Evaluation of wide pulse for VAMOS p. 206
8.2.2.4.1 Background p. 206
8.2.2.4.2 Methodology p. 207
8.2.2.4.2.1 Power control p. 208
8.2.2.4.2.2 Channel allocation p. 208
8.2.2.4.2.3 Modelling of link performance p. 208
8.2.2.4.3 Results p. 208
8.2.2.4.3.1 Simulation assumptions p. 208
8.2.2.4.3.2 System capacity gains p. 208
8.2.2.4.3.3 Impact on legacy users p. 210
8.2.2.4.3.4 Discussion p. 213
8.2.3 Verification of Link to System Mapping p. 213
8.2.3.1 Methodology, DL p. 213
8.2.3.1.1 Interference scenarios p. 213
8.2.3.1.2 Raw BER verification levels p. 214
8.2.3.1.3 Interference statistics p. 215
8.2.3.1.4 Adjacent channel interference p. 215
8.2.3.1.5 Mappings p. 215
8.2.3.2 Verification, DL p. 217
8.2.4 Verfication of 4-dimension Link to System Mapping p. 223
8.2.5 Methodology and verification of integrated link simulator modeling p. 227
8.2.5.1 Methodology p. 227
8.2.6 Results p. 228
8.3 Impacts on the Mobile Station p. 230
8.3.1 Legacy mobile stations p. 230
8.3.2 Mobile stations supporting Adaptive symbol constellation p. 230
8.4 Impacts on the BSS p. 230
8.5 Impacts on Network Planning p. 231
8.6 Impacts on the Specification p. 231
8.7 Summary of Evaluation versus Objectives p. 231
8.7.1 Performance objectives p. 231
8.7.2 Compatibility objectives p. 232
8.8 References p. 234
