3GPP Self-evaluation
               Methodology and Results

               “Self-evaluation Results”
                    ...
3GPP Self-evaluation for LTE-Advanced
              Summary

      The 3GPP self-evaluation has shown that the LTE
     Re...
Outline
1.   Main assumptions (Recap)                                           4.   Results: VoIP
     1.1 Evaluated DL s...
Outline
1.   Main assumptions (Recap)                                           4.   Results: VoIP
     1.1 Evaluated DL s...
1.1 Evaluated downlink schemes
         (Full-buffer spectrum efficiency)
 LTE Rel-8
               Single-user MIMO      ...
1.2 Evaluated uplink schemes
           (Full-buffer spectrum efficiency)
 LTE Rel-8
    Single-input multiple-output     ...
1.3 DL control channel overhead assumption


                              1 subframe = 1.0 msec = 14 OFDM symbols

      ...
Outline
1.   Main assumptions (Recap)                                           4.   Results: VoIP
     1.1 Evaluated DL s...
2.1 Downlink peak spectrum efficiency
    LTE Rel. 8 fulfills ITU-R requirements
    Further improved performance can be a...
2.2 Uplink peak spectrum efficiency
 LTE-A with 2-layer spatial multiplexing fulfills ITU-R requirements
 Further improved...
Outline
1.   Main assumptions (Recap)                                           4  Results: VoIP
     1.1 Evaluated DL sch...
3.1 Indoor (InH) results




© 3GPP 2009                                     th
© 3GPP 2009   <3GPPWorld Congress, Barcelo...
3.1 Indoor environment (Downlink, FDD)
   LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead
   (L = 3)) f...
3.1 Indoor environment (Downlink, TDD)
  LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead
  (L = 3)) ful...
3.1 Indoor environment (Uplink, FDD)
 LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
 Further improved performance c...
3.1 Indoor environment (Uplink, TDD)
 LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
 Further improved performance c...
3.2 Microcellular (UMi) results




© 3GPP 2009                                     th
© 3GPP 2009   <3GPPWorld Congress, ...
3.2 Microcellular environment (Downlink, FDD)
      Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum
     DL co...
3.2 Microcellular environment (Downlink, TDD)
     Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum
    DL cont...
3.2 Microcellular environment (Uplink, FDD)
      LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
      Further impro...
3.2 Microcellular environment (Uplink, TDD)
      LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
      Further impro...
3.3 Base coverage urban (UMa) results




© 3GPP 2009                                     th
© 3GPP 2009   <3GPPWorld Cong...
3.3 Base coverage urban environment (Downlink, FDD)
        Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum
  ...
3.3 Base coverage urban environment (Downlink, TDD)
        Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum
  ...
3.3 Base coverage urban environment (Uplink, FDD)
        LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
        Fur...
3.3 Base coverage urban environment (Uplink, TDD)
          LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
         ...
3.4 High speed (RMa) results




© 3GPP 2009                                     th
© 3GPP 2009   <3GPPWorld Congress, Bar...
3.4 High Speed Environment (Downlink, FDD)
          LTE Rel. 8 with SU-MIMO 4x2 (even with maximum
         DL control ov...
3.4 High Speed Environment (Downlink, TDD)
         LTE Rel. 8 with SU-MIMO 4x2 (even with maximum
        DL control over...
3.4 High Speed Environment (Uplink, FDD)
       LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
       Further improv...
3.4 High Speed Environment (Uplink, TDD)
       LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements
       Further improv...
Outline
1.   Main assumptions (Recap)                                           4  Results: VoIP
     1.1 Evaluated DL sch...
4.1 VoIP results (FDD)

                             LTE Rel. 8 fulfills ITU-R requirements for all the environments

    ...
4.2 VoIP results (TDD)

                             LTE Rel. 8 fulfills ITU-R requirements for all the environments

    ...
Outline
1.   Main assumptions (Recap)                                           4  Results: VoIP
     1.1 Evaluated DL sch...
5.1 Mobility results (FDD)

                                     LTE Rel. 8 fulfills ITU-R requirements for all the enviro...
5.2 Mobility results (TDD)

                                     LTE Rel. 8 fulfills ITU-R requirements for all the enviro...
Outline
1.      Main assumptions (Recap)                                        4  Results: VoIP
        1.1 Evaluated DL ...
6 Simulator calibration
                          How to reproduce 3GPP results?

Recommended simulator calibration proced...
6 Simulator calibration
                    Step1 results: Coupling gain
                                                 ...
6 Simulator calibration
  Step1 results: DL wideband SINR (Geometry)
                                                     ...
6 Simulator calibration
Step 1 results: DL per UE SINR after MRC combining

                                              ...
6 Simulator calibration
          Step 1 results: UL per UE SINR
                                                       Up...
6 Simulator calibration
      Step 2 results: DL user throughput
                                                    Downl...
6 Simulator calibration
       Step2 results: UL user throughput
                                                         ...
6 Simulator calibration
  Step 2 results: DL Spectrum efficiency 1-by-2
                                                  ...
6 Simulator calibration
 Step 2 results: UL spectrum efficiency 1-by-2
                                                   ...
6 Simulator calibration
                   Step 3 and 4 results




                                Results shown in Slide...
6 Simulator calibration: parameters (1)
               Parameter                                                   Value
 ...
6 Simulator calibration: parameters (2)
              Parameter                                                   Value
  ...
7. Conclusion

     The 3GPP self-evaluation has shown that the LTE
    Release 10 & beyond (LTE-Advanced) SRIT and the
  ...
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LTE and LTE-A Self Evalulation Results Rev

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3GPP Self evaluation methodology and results (Tetsushi Abe: RAN WG1 Vice-Chair, NTT DOCOMO

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LTE and LTE-A Self Evalulation Results Rev

  1. 1. 3GPP Self-evaluation Methodology and Results “Self-evaluation Results” Tetsushi Abe, NTT DOCOMO 3GPP TSG-RAN1 Vice-Chairman © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 1
  2. 2. 3GPP Self-evaluation for LTE-Advanced Summary The 3GPP self-evaluation has shown that the LTE Release 10 & beyond (LTE-Advanced) SRIT and the individual FDD RIT and TDD RIT components completely satisfy the criteria of Step 7 and should move forward to Step 8 of the process. In particular, the SRIT and the individual FDD RIT and TDD RIT components meet all the requirements in all four of the four defined test environments. The evaluation results were based on the rigorous calibration effort. RIT: Radio Interface Technology SRIT: Sets of RIT © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 2
  3. 3. Outline 1. Main assumptions (Recap) 4. Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 3
  4. 4. Outline 1. Main assumptions (Recap) 4. Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 4
  5. 5. 1.1 Evaluated downlink schemes (Full-buffer spectrum efficiency) LTE Rel-8 Single-user MIMO Single-layer beamforming (SU-MIMO) (Single-layer BF) Ex) Ex) LTE-Advanced Multi-user MIMO Coordinated scheduling/beamforming Joint processing CoMP (MU-MIMO) CoMP (CS/CB-CoMP) (JP-CoMP) Ex) Ex) Ex) Suppress / Avoid Various schemes have been evaluated © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 5
  6. 6. 1.2 Evaluated uplink schemes (Full-buffer spectrum efficiency) LTE Rel-8 Single-input multiple-output Multi-user MIMO (SIMO) (MU-MIMO) Ex) Ex) LTE-Advanced Single-user MIMO (SU-MIMO) CoMP MU-MIMO Ex) Ex) Various schemes have been evaluated © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 6
  7. 7. 1.3 DL control channel overhead assumption 1 subframe = 1.0 msec = 14 OFDM symbols DL control Data L: OFDM symbols (L=1, 2, 3) Downlink performances have been evaluated taking into account the downlink overhead for L = 1, 2 and 3 cases Dynamic assignment of L is supported already in the Rel. 8 specification Average overhead depends on the environments © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 7
  8. 8. Outline 1. Main assumptions (Recap) 4. Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 8
  9. 9. 2.1 Downlink peak spectrum efficiency LTE Rel. 8 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (8-layer spatial multiplexing) DL peak spectrum efficiency for FDD Scheme Spectral efficiency [b/s/Hz] Assumptions 4 layers (LTE Rel-8) ITU-R Requirement 15 8 layers (LTE-A) Rel. 8 4-layer spatial 1 symbols for DL control channel 16.3 Common RS (LTE Rel-8) multiplexing Common + Demodulation RS (LTE-A) 8-layer spatial PBCH and Sync. Signal overhead 30.6 multiplexing For TDD, 4 DL : 2 SP : 4 UL DL peak spectrum efficiency for TDD 12 DwPTS : 1 GP : 1 UpPTS Scheme Spectral efficiency [b/s/Hz] ITU-R Requirement 15 Rel. 8 4-layer spatial 16.0 multiplexing 8-layer spatial 30.0 multiplexing © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 9
  10. 10. 2.2 Uplink peak spectrum efficiency LTE-A with 2-layer spatial multiplexing fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (4-layer spatial multiplexing) UL peak spectral efficiency for FDD Scheme Spectral efficiency [b/s/Hz] Assumptions 2 layers ITU-R Requirement 6.75 4 layers 2 layer spatial UL control channel 8.4 (1 PRB / 10MHz / 1 msec) multiplexing Physical random access channel 4 layer spatial (6 PRB / 10MHz / 10 msec) 16.8 multiplexing UL peak spectral efficiency for TDD Scheme Spectral efficiency [b/s/Hz] ITU-R Requirement 6.75 2 layer spatial 8.1 multiplexing 4 layer spatial 16.1 multiplexing © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 10
  11. 11. Outline 1. Main assumptions (Recap) 4 Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 11
  12. 12. 3.1 Indoor (InH) results © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 12
  13. 13. 3.1 Indoor environment (Downlink, FDD) LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (MU-MIMO 4x2) Spectrum Efficiency: FDD DL, Indoor (InH) ITU-R requirement 7 6.6 6.1 (bps/Hz/cell) 6 5.5 Cell average 4.8 4.5 5 4.1 4 3.0 3 2 1 0 0.3 0.26 0.23 0.24 0 .2 5 0.21 0.22 Cell edge (bps/Hz) 0.19 0.2 0 .1 5 0.1 0.1 0 .0 5 0 Rel-8 S U-M IM O 4 x 2 (A) M U-M IM O 4 x 2 (C ) L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 13
  14. 14. 3.1 Indoor environment (Downlink, TDD) LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (MU-MIMO 4x2) Spectrum Efficiency: TDD DL, Indoor (InH) ITU-R requirement 6.7 7 6.1 5.6 (bps/Hz/cell) 6 Cell average 4.7 4.4 5 4.1 4 3.0 3 2 1 0 0.3 0.24 0.25 0.22 0.2 0.22 0.2 0.19 Cell edge (bps/Hz) 0.2 0.15 0.1 0.1 0.05 0 Rel-8 SU-MIMO 4 x 2 (A) MU-MIMO 4 x 2 (C) L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 14
  15. 15. 3.1 Indoor environment (Uplink, FDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., LTE Rel. 8 MU-MIMO 1x4, SU-MIMO 2x4) Spectrum Efficiency: FDD UL, Indoor (InH) 5.8 ITU-R requirement 6 (bps/Hz/cell) 4.3 Cell average 5 4 3.3 3.3 2.25 3 2 1 0 0.5 0.42 0.4 Cell Edge (bps/Hz) 0.25 0.23 0.24 0.3 0.2 0.07 0.1 0 Rel-8 SIMO 1x4 (A) Rel-8 SIMO 1x4 (C) Rel-8 MU-MIMO 1x4 SU-MIMO 2 x 4 (A) (A) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 15
  16. 16. 3.1 Indoor environment (Uplink, TDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., LTE Rel. 8 MU-MIMO 1x4, SU-MIMO 2x4) Spectrum Efficiency: TDD UL, Indoor (InH) ITU-R requirement 5.5 6 (bps/Hz/cell) Cell average 5 3.9 4 3.1 3.1 2.25 3 2 1 0 0.5 0.39 0.4 Cell Edge (bps/Hz) 0.23 0.25 0.3 0.22 0.2 0.07 0.1 0 Rel-8 SIMO 1x4 (A) Rel-8 SIMO 1x4 (C) Rel-8 MU-MIMO 1x4 (A) SU-MIMO 2 x 4 (A) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 16
  17. 17. 3.2 Microcellular (UMi) results © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 17
  18. 18. 3.2 Microcellular environment (Downlink, FDD) Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., CS/CB-CoMP 4x2, JP-CoMP 4x2) Spectrum Efficiency: FDD DL, Microcellular (UMi) ITU-R requirement 5 4.5 4.1 3.6 3.7 4 3.5 3.4 (bps/Hz/cell) 3.2 3.3 Cell average 3.1 3 2.9 2.8 2.6 3 2 1 0 0.15 0.14 0.13 0.12 0.12 0.11 0.11 0.1 0.096 0.099 0.099 Cell edge 0.1 0.089 (bps/Hz) 0.087 0.075 0.05 0 MU-MIMO 4 x 2 (C) MU-MIMO 4x2 (A) CS/CB-CoMP4x2(C) JP-CoMP 4 x 2 (C) L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 18
  19. 19. 3.2 Microcellular environment (Downlink, TDD) Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., CS/CB-CoMP 4x2, JP-CoMP 4x2) Spectrum Efficiency: TDD DL, Microcellular (UMi) ITU-R requirement 4.6 5 4.2 3.9 3.6 4 3.5 3.3 (bps/Hz/cell) 3.2 3.2 Cell average 3 3.1 2.9 2.7 2.6 3 2 1 0 0.15 0.11 0.11 0.096 0.1 0.095 0.1 0.1 0.092 0.092 0.1 0.089 0.086 0.085 Cell edge (bps/Hz) 0.075 0.05 0 MU-MIMO 4 x 2 (C) MU-MIMO 4x2 (A) CS/CB-CoMP4x2(C) JP-CoMP 4 x 2 (C) L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 19
  20. 20. 3.2 Microcellular environment (Uplink, FDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., LTE Rel. 8 MU-MIMO 1x4, MU-MIMO 2x4, and MU-MIMO 1x8) Spectrum Efficiency: FDD UL, Microcellular (UMi) ITU-R requirement 4 (bps/Hz/cell) Cell average 3 2.5 2.5 1.9 1.8 2 1 0 0.1 0.086 0.077 0.073 0.08 Cell Edge (bps/Hz) 0.05 0.06 0.04 0.02 0 Rel-8 SIMO 1 x 4 (C) Rel-8 MU-MIMO 1 x 4 (A) MU-MIMO 2 x 4 (A) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 20
  21. 21. 3.2 Microcellular environment (Uplink, TDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., LTE Rel. 8 MU-MIMO 1x4, MU-MIMO 2x4, and MU-MIMO 1x8) Spectrum Efficiency: TDD UL, Microcellular (UMi) ITU-R requirement 4 3 (bps/Hz/cell) 2.8 Cell average 3 2.3 1.9 1.8 2 1 0 0.1 0.079 0.07 0.071 0.068 0.08 Cell Edge (bps/Hz) 0.05 0.06 0.04 0.02 0 Rel-8 SIMO 1 x 4 (C) Rel-8 MU-MIMO 1 x 4 MU-MIMO 2 x 4 (A) MU-MIMO 1 x 8 (E) (A) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 21
  22. 22. 3.3 Base coverage urban (UMa) results © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 22
  23. 23. 3.3 Base coverage urban environment (Downlink, FDD) Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., CS/CB-CoMP 4x2, JP-CoMP 4x2) Spectrum Efficiency: FDD DL, Base coverage urban (UMa) ITU-R requirement 4 2.9 3 2.8 (bps/Hz/cell) 2.6 2.6 2.7 Cell average 3 2.4 2.4 2.5 2.2 2 1 0 0.1 0.079 0.073 0.066 0.081 0.074 0.08 0.073 0.066 0.067 Cell edge (bps/Hz) 0.06 0.05 0 MU-MIMO 4 x 2 (C) CS/CB-CoMP 4 x 2 (C) JP-CoMP 4 x 2 (A) L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 23
  24. 24. 3.3 Base coverage urban environment (Downlink, TDD) Extension of LTE Rel. 8 with MU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., CS/CB-CoMP 4x2, JP-CoMP 4x2) Spectrum Efficiency: TDD DL, Base coverage urban (UMa) ITU-R requirement 4 3.6 3.3 3.1 2.9 2.9 (bps/Hz/cell) 2.6 Cell average 2.6 3 2.4 2.4 2.2 2 1 0 0.1 0.079 0.083 0.075 0.09 0.082 0.076 0.071 0.067 0.07 Cell edge (bps/Hz) 0.06 0.05 0 MU-MIMO 4 x 2 (C) CS/CB-CoMP 4 x 2 (C) JP-CoMP 4 x 2 (C) L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 24
  25. 25. 3.3 Base coverage urban environment (Uplink, FDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., CoMP 1x4, CoMP 2x4) Spectrum Efficiency: FDD UL, Base coverage urban (UMa) ITU-R requirement 3 2.1 (bps/Hz/cell) Cell average 1.5 1.7 2 1.4 1 0 0.15 0.099 0.086 Cell Edge (bps/Hz) 0.1 0.062 0.05 0.03 0 Rel-8 SIMO 1 x 4(C) CoMP 1 x 4 (A) CoMP 2 x 4 (C) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 25
  26. 26. 3.3 Base coverage urban environment (Uplink, TDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., CoMP 1x4, CoMP 2x4) Spectrum Efficiency: TDD UL, Base coverage urban (UMa) ITU-R requirement 2.7 3 2 (bps/Hz/cell) Cell average 1.9 2 1.5 1.4 1 0 0.15 0.097 0.09 Cell Edge (bps/Hz) 0.1 0.076 0.062 0.05 0.03 0 Rel-8 SIMO 1x4 (C) CoMP 1 x 4 (C) CoMP 2 x 4 (C) MU-MIMO 1 x 8 (E) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 26
  27. 27. 3.4 High speed (RMa) results © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 27
  28. 28. 3.4 High Speed Environment (Downlink, FDD) LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., MU-MIMO 4x2) Spectrum Efficiency: FDD DL, High speed (RMa) ITU-R requirement 3.9 4 3.5 3.2 (bps/Hz/cell) Cell average 3 2.3 2.1 2.1 2 1.9 1.8 2 1.1 1 0 0.15 0.11 0.099 0.09 Cell edge (bps/Hz) 0.1 0.081 0.076 0.069 0.067 0.063 0.057 0.04 0.05 0 Rel-8 SU-MIMO 4 x 2 (C) Rel-8 SU-MIMO 4 x 2 (A) MU-MIMO 4 x 2 (C) L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 28
  29. 29. 3.4 High Speed Environment (Downlink, TDD) LTE Rel. 8 with SU-MIMO 4x2 (even with maximum DL control overhead (L = 3)) fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., MU-MIMO 4x2) Spectrum Efficiency: TDD DL, High speed (RMa) ITU-R requirement 4 3.5 3.2 3 (bps/Hz/cell) Cell average 3 2 1.9 1.9 1.8 1.7 1.6 2 1.1 1 0 0.15 0.098 0.089 Cell edge (bps/Hz) 0.083 0.1 0.072 0.067 0.063 0.057 0.053 0.04 0.049 0.05 0 Rel-8 SU-MIMO 4 x 2 (C) Rel-8 SU-MIMO 4 x 2 (A) MU-MIMO 4 x 2 (C) L = 1, 2, 3 L = 1, 2, 3 L = 1, 2, 3 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 29
  30. 30. 3.4 High Speed Environment (Uplink, FDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., Rel-8 MU-MIMO 1x4, CoMP 2x4) Spectrum Efficiency: FDD UL, High speed (RMa) ITU-R requirement 3 2.2 2.3 (bps/Hz/cell) Cell average 1.8 2 0.7 1 0 0.15 0.13 0.097 Cell Edge (bps/Hz) 0.082 0.1 0.05 0.015 0 Rel-8 SIMO 1x4 (C) Rel-8 MU-MIMO 1x4 (A) CoMP 2 x 4 (A) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 30
  31. 31. 3.4 High Speed Environment (Uplink, TDD) LTE Rel. 8 with SIMO 1x4 fulfills ITU-R requirements Further improved performance can be achieved by using additional technology features (e.g., Rel-8 MU-MIMO 1x4, CoMP 2x4) Spectrum Efficiency: TDD UL, High speed (RMa) ITU-R requirement 2.6 3 2.5 (bps/Hz/cell) 2.1 Cell average 1.8 2 0.7 1 0 0.15 0.15 0.093 0.1 Cell Edge (bps/Hz) 0.08 0.1 0.05 0.015 0 Rel-8 SIMO 1 x 4 (C) Rel-8 MU-MIMO 1 x 4 CoMP 2 x 4 (A) MUMIMO 1 x 8 (E) (A) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 31
  32. 32. Outline 1. Main assumptions (Recap) 4 Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 32
  33. 33. 4.1 VoIP results (FDD) LTE Rel. 8 fulfills ITU-R requirements for all the environments Number of VoIP Users, FDD ITU-R requirement 150 140 140 131 Capacity (user/MHz/cell) 130 120 110 100 91 94 90 80 80 75 68 69 70 60 50 40 30 20 10 0 Indoor Urban Micro Urban Macro High Speed (A) and (C) (A) and (C) (A) and (C) (A) and (C) Evaluated schemes DL: Rel. 8 (4x2, 1x2) UL: Rel. 8 (1x4 ) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 33
  34. 34. 4.2 VoIP results (TDD) LTE Rel. 8 fulfills ITU-R requirements for all the environments Number of VoIP Users, FDD ITU-R requirement 150 137 140 130 Capacity (user/MHz/cell) 130 120 110 100 92 90 86 80 74 74 65 67 70 60 50 40 30 20 10 0 Indoor Urban Micro Urban Macro High Speed (A) and (C) (A) and (C) (A) and (C) (A) and (C) Evaluated schemes DL: Rel. 8 (4x2 or 1x2) UL: Rel. 8 (1x4) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 34
  35. 35. Outline 1. Main assumptions (Recap) 4 Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 35
  36. 36. 5.1 Mobility results (FDD) LTE Rel. 8 fulfills ITU-R requirements for all the environments Mobility Capacity, FDD ITU-R requirement 4 Spectral efficiency (bps/Hz) 3.15 3 2.56 2 1.42 1.36 1.45 1.21 1.22 1.0 1.08 1 0.75 0.55 0.25 0 Indoor (InH) Microcelluar (UMi) Base Coverage Urban High speed (RMa) NLOS LOS NLOS LOS (UMa) NLOS LOS NLOS LOS Evaluated schemes Rel. 8 UL (1x4) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 36
  37. 37. 5.2 Mobility results (TDD) LTE Rel. 8 fulfills ITU-R requirements for all the environments ITU-R requirement Mobility Capacity,TDD 4 Spectral efficiency (bps/Hz) 3.11 3 2.63 2 1.48 1.36 1.38 1.0 1.14 0.95 1.03 1 0.75 0.55 0.25 0 Indoor (InH) Microcelluar (UMi) Base Coverage Urban High speed (RMa) NLOS LOS NLOS LOS (UMa) NLOS LOS NLOS LOS Evaluated schemes Rel. 8 UL (1x4) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 37
  38. 38. Outline 1. Main assumptions (Recap) 4 Results: VoIP 1.1 Evaluated DL schemes 4.1 FDD 1.2 Evaluated UL schemes 4.2 TDD 1.3 DL control overhead assumptions 5. Results: Mobility 2. Results: Peak spectrum efficiency 5.1 FDD 2.1 DL peak spectrum efficiency 5.2 TDD 2.2 UL peak spectrum efficiency 6. Simulator calibration 3. Results: Full-buffer spectrum efficiency 7. Conclusion 3.1 Indoor (InH) 3.2 Microcellular (UMi) 3.3 Base coverage urban (UMa) 3.4 High speed (RMa) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 38
  39. 39. 6 Simulator calibration How to reproduce 3GPP results? Recommended simulator calibration procedures Step 1: Implement ITU-R environments Check that pathloss and geometry distributions are in line with 3GPP results Step2: Implement basic LTE models (1 x 2) Check that spectral efficiency and user-throughput are in line with 3GPP results Step3: Implement Rel-8 functionality (DL 4 x 2 SU-MIMO, UL 1 x 4 SIMO) Check that Rel-8 performance is in line with 3GPP results This should enable reaching most ITU-R requirements Step4: Implement advanced LTE functionality Check that remaining ITU requirements can be reached © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 39
  40. 40. 6 Simulator calibration Step1 results: Coupling gain Calibration 100 90 80 70 C.D.F. [%] 60 50 InH 40 UM i 30 UM a RM a 20 Case 13D 10 Case 12D 0 -140 -120 -100 -80 -60 -40 Coupling gain (Prx-Ptx) [dB] Ref: 3GPP TR36.814 ver 1.5.0 Averaged over 17 sources © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 40
  41. 41. 6 Simulator calibration Step1 results: DL wideband SINR (Geometry) Calibration 100 90 80 70 C.D.F. [%] 60 50 InH 40 UM i 30 UM a RM a 20 Case 13D 10 Case 12D 0 -10 0 10 20 30 40 Downlink wideband SINR (geometry) [dB] Ref: 3GPP TR36.814 ver 1.5.0 Averaged over 17 sources © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 41
  42. 42. 6 Simulator calibration Step 1 results: DL per UE SINR after MRC combining Downlink Calibration 100 1x2 90 80 70 60 C.D.F. [%] 50 40 InH UMi 30 UMa 20 RMa Case 13D 10 Case 12D 0 -10 0 10 20 30 40 50 DL Per UE Average SINR [dB] Ref: 3GPP TR36.814 ver 1.5.0 Averaged over 16 sources © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 42
  43. 43. 6 Simulator calibration Step 1 results: UL per UE SINR Uplink Calibration 100 90 80 70 60 C.D.F. [%] 50 40 InH UMi 30 UMa 20 RMa Case 13D 10 Case 12D 0 -5 0 5 10 15 20 UL Per UE Average SINR [dB] Ref: 3GPP TR36.814 ver 1.5.0 Averaged over 16 sources © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 43
  44. 44. 6 Simulator calibration Step 2 results: DL user throughput Downlink Calibration 100 1x2 90 80 70 C.D.F . [%] 60 50 40 InH 30 UMi 20 UMa RMa 10 Case 1 3D Case 1 2D 0 0 0, 1 0,2 0,3 0,4 0,5 Normalized User Throughput [bps/Hz] Ref: 3GPP TR36.814 ver 1.5.0 Averaged over 16 sources © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 44
  45. 45. 6 Simulator calibration Step2 results: UL user throughput Uplink Calibration 100 1x2 90 80 70 C.D.F. [%] 60 50 40 InH 30 UMi UMa 20 RMa 10 Case 1 3D Case 1 2D 0 0,0 0,1 0,2 0,3 0,4 0,5 Normalized User Throughput [bps/Hz] Ref: 3GPP TR36.814 ver 1.5.0 Averaged over 16 sources © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 45
  46. 46. 6 Simulator calibration Step 2 results: DL Spectrum efficiency 1-by-2 Spectrum efficiency calibration, DL 3 0.3 Cell average (bps/Hz/cell) 2.3 Cell Edge (bps/Hz) 2 0.2 1.5 1.2 1.2 1.1 1 0.082 1 0.1 0.028 0.022 0.035 0.027 0.026 0 0 InH UMi UMa RMa Case 1, 3D Case 1, 2D Averaged over 16 sources Ref: 3GPP TR36.814 ver 1.5.0 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 46
  47. 47. 6 Simulator calibration Step 2 results: UL spectrum efficiency 1-by-2 Spectrum efficiency calibration, UL 2 0.2 1.77 Cell average (bps/Hz/cell) Cell Edge (bps/Hz) 0.99 1 0.084 0.91 0.86 0.1 0.74 0.68 0.033 0.026 0.034 0.036 0.031 0 0 InH UMi UMa RMa Case 1, 3D Case 1, 2D Averaged over 16 sources Ref: 3GPP TR36.814 ver 1.5.0 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 47
  48. 48. 6 Simulator calibration Step 3 and 4 results Results shown in Slide 13 - 31 © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 48
  49. 49. 6 Simulator calibration: parameters (1) Parameter Value Duplex method FDD Downlink transmission scheme 1x2 SIMO Downlink scheduler Round robin with full bandwidth allocation Downlink link adaptation Wideband CQI, no PMI on PUCCH (mode 1-0) 5ms periodicity, 6ms delay total (measurement in subframe n is used in subframe n+6) CQI measurement error: None MCSs based on LTE transport formats [TR36.213] Downlink HARQ Maximum four transmissions Downlink receiver type MRC Uplink transmission scheme 1x2 SIMO Uplink scheduler Frequency Domain Multiplexing – non-channel dependent, share available bandwidth between users connected to the cell, all users get resources in every uplink subframe. With M users and Nrb PRBs available, Mh=mod(Nrb,M) users get floor(Nrb/M)+1 PRBs whereas Ml=M-Mh users get floor(Nrb/M) PRBs Uplink Power control P0 = -106dBm, alpha = 1.0 Uplink Link adaptation Based on delayed measurements. Ideal channel estimate from UL transmission in subframe n can be used for rate adaptation in subframe n+7 MCSs based on LTE transport formats [TR36.213] Uplink HARQ Maximum four transmissions Proponent to specify IR or CC Uplink receiver type MMSE in frequency domain, MRC over antennas (no intercell interference rejection) © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, Ref: 3GPP TR36.814 ver 1.5.0 49
  50. 50. 6 Simulator calibration: parameters (2) Parameter Value Antenna configuration Vertically polarized antennas 0.5 wavelength separation at UE, 10 wavelength separation at basestation Channel estimation Ideal, both demodulation and sounding Control Channel overhead, LTE: L=3 symbols for DL CCHs, M=4 resource blocks for UL CCH, Acknowledgements etc. overhead for demodulation reference signals, BS antenna downtilt ITU Indoor, indoor hotspot scenario (InH): N/A ITU Microcellular, urban micro-cell scenario (Umi): 12deg ITU Base coverage urban, Urban macro-cell scenario (Uma): 12deg ITU High speed, Rural macro-cell scenario (Rma): 6 deg Case 1 3GPP 3D: 15 deg Case 1 3GPP 2D: N/A Feeder loss 0dB, except for the ITU scenarios in step 1a where a feeder loss of 2dB is used. Channel model According to ITU for ITU scenarios SCM urban macro high spread for 3GPP case 1 Intercell interference modeling Explicit © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, Ref: 3GPP TR36.814 ver 1.5.0 50
  51. 51. 7. Conclusion The 3GPP self-evaluation has shown that the LTE Release 10 & beyond (LTE-Advanced) SRIT and the individual FDD RIT and TDD RIT components completely satisfy the criteria of Step 7 and should move forward to Step 8 of the process. In particular, the SRIT and the individual FDD RIT and TDD RIT components meet all the requirements in all four of the four defined test environments. The evaluation results were based on the rigorous calibration effort. © 3GPP 2009 th © 3GPP 2009 <3GPPWorld Congress, Barcelona, 19 February 2009 2009> Mobile LTE-Advanced Evaluation Workshop, Dec. 17-18, 51

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