NTN Evaluation for IMT-2020 Rel-18

 RAN1#112-bis-e

9.15   Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology

Please refer to RP-230736 for detailed scope of the SI.

 

R1-2304176        Session notes for 9.15 (Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology)           Ad-Hoc Chair (Huawei)

 

R1-2302871         SI work plan for Study on self-evaluation towards the IMT-2020 submission of the 3GPP Satellite Radio Interface Technology  Ericsson

9.15.1     Evaluation methodology

R1-2302693         Considerations on evaluation methodology for IMT2020 Satellite RIT               CATT,CAICT

R1-2302774         Discussion on self-evaluation methodology for IMT-2020 satellite radio interface               OPPO

R1-2303157         On evaluation methodology for IMT-2020 Satellite    Samsung

R1-2303346         Evaluation methodology for IMT-2020 satellite          MediaTek Inc.

R1-2303619         eMBB Spectral Efficiency SLS parameters and assumptions    Qualcomm Incorporated

R1-2303626         Discussion on simulation assumptions for self-evaluation of IMT-2020 satellite radio interface technology          Panasonic

 

[112bis-e-R18-Sat_Eval-01] – Alberto (Qualcomm)

Email discussion on evaluation methodology by April 26th

-        To be kicked off after the first online session

-        Check points: April 21, April 26

From April 17th GTW session

R1-2304008        Feature lead summary #1 on evaluation methodology for IMT-2020 Satellite               Moderator (Qualcomm)

Decision: The document is noted.

 

R1-2302873        Assumptions for the Self-Evaluation for the Satellite Component of IMT-2020               Ericsson, Qualcomm, Thales

Provides basic simulation assumptions to be used for the self-evaluation of peak data rate and peak spectral efficiency.

Decision: The document is noted.

 

R1-2302384        Evaluation methodology of IMT-2020 satellite        Huawei, HiSilicon

·        Proposal 1: Satellite self-evaluation focuses on transparent payload only. If RAN can check and confirm regenerative payload be supported by Rel-17 specifications, then the evaluation results for transparent payload can be used as a reference for regenerative payload for ITU submission.

·        Proposal 2: The channel model in section 6 of TR 38.811 can be viewed as an adaptation for satellite evaluation on top of terrestrial evaluation and can be used for satellite self-evaluation.

·        Proposal 3: Reuse the wrap around mechanism in section 6.1.1.1 of TR 38.821 for satellite self-evaluation.

·        Proposal 4: The additional parameters listed in Table 3 are added on top of example parameters in section 8.2.3 of Report ITU-R M.2514 for Rural-eMBB-s evaluation.

·        Proposal 5: Companies are encouraged to provide calibration curves aligned with TR 38.821 calibration case 9 or case 10 when providing satellite self-evaluation results. Then there is no need for additional cross-company calibration.

·        Proposal 6: Both non-full buffer simulation and full-buffer simulation defined in section 7.1.3 of Report ITU-R M.2412 are used for satellite connection density evaluation, with the following adaptation to satellite self-evaluation:

o   Traffic model for QoS calculation is defined in Table 1 in section 8.2.3 of Report ITU-R M.2514.

o   Requirement for evaluation is defined in section 7.2.8 of Report ITU-R M.2514.

·        Proposal 7: The calculation method of pre-processing SINR from TR 37.910 is reused for system-level simulation followed by link-level simulation.

·        Proposal 8: Additional parameters listed in Table 5 are added on top of example parameters in section 8.2.3 of Report ITU-R M.2514 for Rural-mMTC-s evaluation.

·        Proposal 9: The evaluation methodology defined in section 7.1.4 of Report ITU-R M.2412 is reused to evaluate mobility, with the same evaluation parameters and configurations selected for the evaluation of average spectral efficiency, and with speed of 250 km/h.

·        Proposal 10: The additional parameters listed in Table 3 are added on top of example parameters in section 8.2.3 of Report ITU-R M.2514 for Rural-HRC-s evaluation, as that for Rural-eMBB-s.

·        Proposal 11: For peak spectral efficiency assessment, the generic formula defined in TR 37.910 can be reused, and the highest coding rate, maximum modulation order and maximum number of layers need to take into consideration of the achievable values based on, e.g., link budget analysis of CNR.

·        Proposal 12: The effect of earth curvature on area calculation needs to be considered for evaluating area traffic capacity.

·        Proposal 13: Control plane latency, user plane latency and mobility interruption time should be discussed by RAN2.

·        Proposal 14: Energy efficiency should be discussed by RAN2.

Decision: The document is noted.

 

R1-2302435        Discussion on self-evaluation methodology for potential 3GPP submission of IMT-2020 Satellite Radio Interface Technology     Nokia, Nokia Shanghai Bell

·        Proposal 1: The evaluation of the peak spectral efficiency considers a UE at nadir and in LOS conditions without presence of interference for the relevant satellite deployment cases.

·        Proposal 2: The evaluation of the peak data rate considers a UE at nadir and in LOS conditions for the relevant satellite deployment cases.

·        Proposal 3: The evaluation of the control and user plane latencies should focus on LEO scenarios.

·        Proposal 4: The evaluation of the mobility interruption time should be based on cells from the same gNB or co-located gNBs and LEO scenario assumptions.

·        Proposal 5: Evaluation assumptions should include the realistic UE handset antenna gain of -5.5 dB

·        Proposal 6: The scenarios are limited to transparent architecture without ISL.

·        Proposal 7: RAN1 to decide that the eMBB-s simulations focus on LEO600, Set-1 and handheld UEs.

·        Proposal 8: Connection density for eMTC should focus on the maximum density, limited by the RACH capacity.

·        Proposal 9: The evaluation should focus on handheld UEs with the assumptions from 38.821 Table 6.1.1.1-3.

·        Proposal 10: Under the evaluation it may be considered to assume a UE with full availability of UE capabilities such as e.g. support of 32 HARQ processes.

·        Proposal 11: RAN1 to discuss whether 100% LOS can be considered or whether a model like in [5] should be included in the evaluation.

Decision: The document is noted.

 

R1-2303299        Discussion on the evaluation methodology of Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite            ZTE

·        Proposal 1: The test environment is Rural for all usage scenarios, and channel model for Rural in sector 6.6.6 and 6.6.7.2 in [3] can be used.

·        Proposal 2: Evaluation for handheld terminals and S-band should be considered as the baseline.

·        Proposal 3: The assumption listed in Table 1-4 should be considered as the baseline of parameters for self-evaluation.

·        Proposal 4: For peak data rate and peak spectral efficiency evaluation, VSAT and Ka-band with up to 400 MHz should be considered. For other characteristics, handheld and S-band with up to 30 MHz should be considered.

Decision: The document is noted.

 

 

R1-2304009         Feature lead summary #2 on evaluation methodology for IMT-2020 Satellite               Moderator (Qualcomm)

R1-2304118        Feature lead summary #3 on evaluation methodology for IMT-2020 Satellite               Moderator (Qualcomm)

Decision: Asper email decision posted on April 24th,

Agreement

The proposals and proposed working assumption in Section 2 of R1-2304118 are endorsed.

 

Decision: Asper email decision posted on April 25th,

Agreement

Signals from one satellite to a UE would be seen as site-specific according to Table 7.6.3.4-1 of TR 38.901.

 

R1-2304123        Feature lead summary #4 on evaluation methodology for IMT-2020 Satellite               Moderator (Qualcomm)

Decision: Asper email decision posted on April 27th,

Agreement

The proposal in Section 2 of R1-2304123 is agreed.

9.15.2     Self-evaluation results for NR NTN

Placeholder only. No contributions in RAN1#112bis-e.

9.15.33     Self-evaluation results for IoT NTN

Placeholder only. No contributions in RAN1#112bis-e.


 RAN1#113

9.14   Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology

Please refer to RP-230736 for detailed scope of the SI.

 

R1-2306146         Session notes for 9.14 (Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology)              Ad-Hoc Chair (Huawei)

 

[113-R18-Sat_Eval] – Alberto (Qualcomm)

Email discussion on self-evaluation towards the 3GPP submission of a IMT-2020 satellite radio interface technology

-        To be used for sharing updates on online/offline schedule, details on what is to be discussed in online/offline sessions, tdoc number of the moderator summary for online session, etc

9.14.1    Evaluation methodology

R1-2304436         Further discussion on self-evaluation methodology for 3GPP submission of IMT-2020 Satellite Radio Interface Technology Nokia, Nokia Shanghai Bell

R1-2304628         Evaluation methodology of IMT-2020 satellite           Huawei, HiSilicon

R1-2304755         Evaluation methodology and performance consideration for  IMT2020 Satellite RIT      CATT

R1-2304759         Consideration on IMT-2020 Satellite self-evaluation  THALES

R1-2305365         Further discussion on self-evaluation assumptions      Qualcomm Incorporated

R1-2305448         Discussion on self-evaluation methodology for IMT-2020 satellite radio interface     OPPO

R1-2305560         Discussion on the Self-Evaluation for IMT-2020 Satellite              ZTE

R1-2305700         Discussion on evaluation assumptions for self-evaluation of IMT-2020 satellite radio interface technology       Panasonic

R1-2305703         Peak data rate and peak spectral efficiency evaluation Ericsson

 

R1-2306083         Feature lead summary #1 on evaluation methodology for IMT-2020 Satellite           Moderator (Qualcomm)

From Friday session

Agreement

The proposals and conclusions in Section 1 of R1-2306083 are endorsed, except for proposal 2.4 (which is already included in the proposed conclusion).

9.14.2    Self-evaluation results for NR NTN

Placeholder only. No contributions in RAN1#113.

9.14.33    Self-evaluation results for IoT NTN

Placeholder only. No contributions in RAN1#113.


 RAN1#114

9.14   Study on self-evaluation towards the IMT-2020 submission of the 3GPP Satellite Radio Interface Technology

Please refer to RP-231296 for detailed scope of the SI.

 

R1-2308550         Session notes for 9.14 (Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology)              Ad-Hoc Chair (Huawei)

Endorsed and contents incorporated below.

 

[114-R18-Sat_Eval] – Alberto (Qualcomm)

Email discussion on self-evaluation towards the 3GPP submission of a IMT-2020 satellite radio interface technology

-        To be used for sharing updates on online/offline schedule, details on what is to be discussed in online/offline sessions, tdoc number of the moderator summary for online session, etc

9.14.1    Evaluation methodology

R1-2306507         Evaluation methodology of IMT-2020 satellite           Huawei, HiSilicon

R1-2306567         Discussion on the evaluation methodology of the self-evaluation              ZTE

R1-2307247         Remaining discussion on evaluation methodology for IMT-2020 Satellite submission           Nokia, Nokia Shanghai Bell

R1-2307551         Discussion on self-evaluation methodology for IMT-2020 satellite radio interface     OPPO

R1-2307706         Discussion on remaining issues for evaluation methodology              Samsung

R1-2307729         Consideration on IMT-2020 Satellite self-evaluation  THALES

R1-2307955         Further discussion on self-evaluation assumptions      Qualcomm Incorporated

 

R1-2308233         Feature lead summary on Evaluation Methodology for IMT-2020 satellite      Moderator (Qualcomm Incorporated)

From Friday session

Agreement

For DL and UL overhead:

 

Agreement

For the evaluation metrics that require usage of beam area, a beam area of 1415 km2 is assumed.

 

Agreement

The modeling of delay / RTT for SLS is up to companies to report.

 

Agreement

All the beams are considered for computing the area of connection density.

 

Agreement

For SLS to LLS metric of connection density, “pre-processing SINR” should be used instead of “pre-processing SNR”.

 

Agreement

Elevation angle of 90° is used for determining mean and standard deviation values of K-factor and delay spread for NTN TDL-C Rural channel model.

 

Agreement

For mMTC LLS (NR and eMTC), 16-QAM can be used in addition to QPSK to derive the SNR to SE mapping.

 

Agreement

For connection density evaluation with full buffer system-level simulation followed by link-level simulation, for SINR CDF distribution derivation, all the beams are assumed to be fully loaded.

 

Observation:

Based on RAN1 evaluations, for peak data rate and spectral efficiency the max code rate and modulation order is:

·       For DL, the modulation scheme is , and between 666/1024 and 822/1024

·       For UL, the modulation scheme is , and  between 434/1024 and 553/1024

Agreement

3GPP will report peak data rate and spectral efficiency based on

 

Agreement

For the link budget template:

·       The attached xls to R1-2308233 is endorsed as the starting point for the link budget template.

·       The target elevation angle is [30] degrees, and the link budget template includes the link margin (in dB) at that elevation angle.

·       The LLS to derive the “required SNR” for the link budget template is performed under an NTN TDL-C rural channel model with the K-factor corresponding to the target elevation angle.

·       The rest of the parameters (bits / #reps / others) and whether different values are used for different scenarios (eMBB-s, HRC-s, mMTC-s) are to be discussed via email discussion.

 

[Post-114-ITU-Sat-01] Email discussion on link budget template from August 28 until September 6 – Alberto (Qualcomm)

9.14.2    Self-evaluation results for NR NTN

R1-2306407         Simulation results for the study on self-evaluation towards the IMT-2020 of the 3GPP Satellite RIT             THALES

R1-2306508         Self-evaluation results for NR NTN Huawei, HiSilicon

R1-2306568         Discussion on the Self-evaluation results for NR NTN              ZTE

R1-2307067         Initial evaluation result for NR NTN              CATT

R1-2307248         Initial evaluation results related to IMT-2020 Satellite for NR over NTN             Nokia, Nokia Shanghai Bell

R1-2307362         Self-evaluation results for NR NTN xiaomi

R1-2307407         Initial evaluation results on NR-NTN for self-evaluation of IMT-2020 satellite radio interface technology       Panasonic

R1-2307496         Calibration results and peak data rate analysis for NR NTN              NTT DOCOMO, INC.

R1-2307552         Self-evaluation results for NR NTN OPPO

R1-2307707         Discussion on evaluation results for NR NTN             Samsung

R1-2307774         Satellite IMT-2020 self-evaluation: Peak data rate and spectral efficiency             Ericsson

R1-2307956         Self-evaluation results for NR NTN Qualcomm Incorporated

 

R1-2306416         Feature Lead Summary #3 on self-evaluation results for NR NTN      THALES

From Friday session

Agreement

The results of CL, Geometry SIR and Geometry SINR simulated on DL are to be reported within the attached template.

Attachment: R1-2306416_Calibration_results v00

 

Agreement

The attached template is used to collect evaluation results for eMBBs peak spectral efficiency and peak data rate.

Attachment: R1-2306416 - Att eMBBs_ Peak spectral efficiency_Peak data rate v01

 

 

Agreement

Downlink peak spectral efficiency is evaluated based on analytical method. The evaluation result is provided in the following Table.

The detailed assumptions will be captured in the TR 37.911.

NR NTN DL peak spectral efficiency (bit/s/Hz)

SCS [kHz]

30 MHz

Req.

FR1

15

[3.71]

3

 

 

 

Based on the above, NR NTN fulfils DL peak spectral efficiency requirement.

 

 

Agreement

Uplink peak spectral efficiency is evaluated based on analytical method. The evaluation result is provided in the following Table.

The detailed assumptions will be captured in the TR 37.911.

NR NTN UL peak spectral efficiency (bit/s/Hz)

SCS [kHz]

1.44 MHz

Req.

FR1

15

[1.85]

1.5

 

 

 

Based on the above, NR NTN fulfils UL peak spectral efficiency requirement

 

 

Agreement

DL peak data rate for NR NTN is evaluated based on the evaluation results of NR NTN peak spectral efficiency. Using the analytical way as provided in Report ITU-R M.2514.

The evaluation result is provided in the following Table.

It is observed that NR fulfils the DL peak data rate requirement.

NR NTN DL peak data rate (Mbit/s)

SCS [kHz]

30 MHz

Req.

FR1

15

[111]

70

 

 

 

Agreement

UL peak data rate for NR NTN is evaluated based on the evaluation results of NR NTN peak spectral efficiency. Using the analytical way as provided in Report ITU-R M.2514.

The evaluation result is provided in the following Table.

It is observed that NR fulfils the UL peak data rate requirement.

NR NTN UL peak data rate (Mbit/s)

SCS [kHz]

1.44 MHz

Req.

FR1

15

[2.76]

2

 

 

 

Agreement

The attached text proposal for TR 37.911 is endorsed from RAN1 perspective. Note: the detailed structure of the TR is up to the TR editor.

Attachment: TP to TR37.911-Peak spectral efficiency and peak data rate-v02

 

Agreement

The attached template is used to collect evaluation results for eMBBs 5th percentile user spectral efficiency, average spectral efficiency, user experienced data rate and area traffic capacity.

Note: OH as agreed in 9.14.1 will be removed from the template.

Attachment: R1-2306416 - Att eMBBs_Spectral Efficiency_User data rate_Area traffic capacity_v01

 

Agreement

The attached template is used to collect evaluation results for the TPR on mobility.

Attachment: R1-2306416 Att eMBB-s_Mobility _v00

 

Agreement

The attached template is used to collect evaluation results for the TPR on reliability.

Attachment: R1-2306416  Att_ HRC-s-Reliability_v00

 

Agreement

The attached template is used to collect evaluation results for the TPR on connection density.

Attachment: R1-2306416  Att_ConnectionDensity -v002

 

Agreement

RAN1 to provide at RAN1#114-bis evaluation results on Energy efficiency, including both network and device.

 

Agreement

For NR NTN Connection Density LLS:

·       Agree 10% BLER as target for throughput for Full Buffer

·       SINR - user spectral efficiency (SE) mapping graph for Full Buffer, where:

o   SE = nominal SE × (1-BLER)

9.14.33    Self-evaluation results for IoT NTN

R1-2306509         Self-evaluation results for IoT NTN               Huawei, HiSilicon

R1-2306569         Discussion on the Self-evaluation results for IoT NTN              ZTE

R1-2307553         Self-evaluation results for IoT NTN               OPPO

R1-2307708         Discussion on evaluation results for IoT NTN             Samsung

R1-2307957         Self-evaluation results for IOT NTN              Qualcomm Incorporated

R1-2308033         Self-evaluation results for IoT NTN               MediaTek Inc.

 

R1-2308410         Feature Lead summary for 9.14.3: Self-Evaluation Results for IoT NTN             Moderator (MediaTek)

From Friday session

Conclusion

No discussion needed regarding whether E-UTRA operating bands 255 and 256 can be used for Rel-17 IoT NTN, as it is already clear that this point does not affect the submission.

 

Agreement

For IoT NTN Connection Density LLS:

·       Agree 10% BLER as target for throughput for NB-IoT Full Buffer and eMTC Full Buffer

·       Companies to use QPSK-π/4 as well as BPSK-π/2 in evaluations for NB-IoT Full Buffer.

·       Each company to provide SINR - user spectral efficiency (SE) mapping graph for NB-IoT Full Buffer and eMTC Full Buffer, where:

o   SE = nominal SE × (1-BLER)


 RAN1#114-bis

8.15   Study on Self-Evaluation towards the IMT-2020 Submission of the 3GPP Satellite Radio Interface Technology

Please refer to RP-231296 for detailed scope of the SI.

 

R1-2310547         Session notes for 8.15 (Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology)              Ad-Hoc Chair (Huawei)

Friday decision: The session notes are endorsed and contents reflected below.

 

 

[114bis-R18-Sat_Eval] – Alberto (Qualcomm)

Email discussion on self-evaluation towards the 3GPP submission of a IMT-2020 satellite radio interface technology

-        To be used for sharing updates on online/offline schedule, details on what is to be discussed in online/offline sessions, tdoc number of the moderator summary for online session, etc

8.15.1    Evaluation methodology

R1-2310358         Evaluation methodology of IMT-2020 satellite           Huawei, HiSilicon             (rev of R1-2308902)

R1-2309153         Discussion on the evaluation methodology of the self-evaluation              ZTE

R1-2309399         Discussion on remaining issues for evaluation methodology              Samsung

R1-2309607         Discussion on self-evaluation methodology for IMT-2020 satellite radio interface     OPPO

R1-2309984         Evaluation assumptions for HRC-s for IoT NTN         MediaTek Inc.

R1-2310165         Further discussion on self-evaluation assumptions      Qualcomm Incorporated

 

R1-2310471         Feature lead summary on Evaluation Methodology for IMT-2020 satellite      Moderator (Qualcomm Incorporated)

From Wednesday session

Agreement

Proposal 1.1 in section 6 of R1-2310471 is endorsed with TBS value 1736 for NR NTN Rural eMBB-s table.

 

Agreement

For the link budget template, the target elevation angle is 30 degrees, and the link budget template includes the link margin (in dB) at that elevation angle.

 

Agreement

Include the receiver interference in the link budget template for NTN, and reuse the following average INR results from TR 38.821:

·       4.4 dB for FRF3 DL,

·       7.6 dB for FRF3 UL

Agreement

The UE speed is updated as 3 km/h in the template for results collection for connection density.

 

Agreement

The maximum delay for reliability should be reported with at least consideration on the impact of assumed layout, number of repetitions, usage of HARQ, and feeder link delay.

 

 

R1-2310587         Feature lead summary#2 on Evaluation Methodology for IMT-2020 satellite           Moderator (Qualcomm Incorporated)

From Friday session

Conclusion

Not include IoT NTN reliability evaluation for HRC-s in TR 37.911.

 

Conclusion

Not include IoT NTN energy efficiency results to TR 37.911.

 

Agreement

At least for eMBB-s spectral efficiency evaluation, a value of 0dB for scintillation loss can be optionally used (in addition to the already agreed 2.2dB) and results can be separately captured in TR 37.911.

8.15.2    Self-evaluation results for NR NTN

R1-2308868         Self-evaluation results for NR NTN THALES

R1-2308903         Self-evaluation results for NR NTN Huawei, HiSilicon

R1-2309095         Discussions on self evaluation results for NR NTN     vivo

R1-2309154         Discussion on the Self-evaluation results for NR NTN              ZTE

R1-2309292         Initial results on NR-NTN self evaluation towards IMT 2020 submission          CEWiT

R1-2309400         Discussion on evaluation results for NR NTN             Samsung

R1-2310558         Self-evaluation results for NR NTN xiaomi   (rev of R1-2309439)

R1-2310497         Further evaluation for NR NTN       CATT    (rev of R1-2309509)

R1-2309608         Self-evaluation results for NR NTN OPPO

R1-2309713         Evaluation results on NR-NTN for self-evaluation of IMT-2020 satellite radio interface technology  Panasonic

R1-2309738         Evaluation results related to IMT-2020 Satellite for NR over NTN for Earth Fixed Cell           Nokia, Nokia Shanghai Bell

R1-2309944         Self-evaluation results for NR NTN CCU, ITRI

R1-2310054         Calibration results and peak data rate analysis for NR NTN              NTT DOCOMO, INC.

R1-2310391         Self-evaluation results for NR NTN Qualcomm Incorporated              (rev of R1-2310166)

R1-2310189         Study on Self-Evaluation of Satellite RIT – Energy Efficiency              Fraunhofer IIS, Fraunhofer HHI

R1-2310220         Satellite IMT-2020 self-evaluation results for NR NTN              Ericsson

 

R1-2308869         Feature Lead Summary#1 on self-evaluation results for NR NTN              THALES

R1-2308870         Feature Lead Summary#2 on self-evaluation results for NR NTN      THALES

From Wednesday session

Observation:

The results of CL, Geometry SIR and Geometry SINR simulated on DL and UL transmissions reported within the attached template are aligned with TR 38.821 calibration case 9 and case 10.

Attachment: R1-2308869 1 Att Calibration_results v06

 

Agreement

The results of CL, Geometry SIR and Geometry SINR simulated on DL and UL transmissions reported within the attached template will be captured in the TR 37.911.

Attachment: R1-2308869 1 Att Calibration_results v06

 

Agreement

Confirm the values of NR NTN peak spectral efficiency and Peak data rate reported in the pCR in RP-231946 for TR 37.911 with the following correction:

·       Peak data rate (Mbit/s) in uplink should be 2.67 instead of 2.76

Agreement

Capture the following observation and table in the TR 37.911:

It is observed that NR NTN fulfils the mobility requirement under 250 km/h.

 

Table Evaluation results of NR NTN mobility under 250 km/h

Frequency reuse factor

ITU Requirement

 

Number

of samples

FRF1

Normalized traffic channel link data rate (bit/s/Hz)

0.005

[0.07]

[4]

Residual decoded packet error ratio

1%

[0.16%]

[3]

FRF3

Normalized traffic channel link data rate (bit/s/Hz)

0.005

[0.14]

[4]

Residual decoded packet error ratio

1%

[0.34%]

[3]

 

Agreement

Capture the following observation and table in the TR 37.911:

It is observed that NR NTN fulfils the reliability requirement for downlink.

 

Table 1 Evaluation results of DL reliability for NR NTN

Frequency reuse factor

ITU Requirement

DL Reliability

Number of samples

FRF 1

99.9%

[99.98%]

[4]

FRF 3

99.9%

[99.96%]

[5]

 

Agreement

Capture the following observation and table in the TR 37.911:

It is observed that NR NTN fulfils the reliability requirement for uplink.

 

Table Evaluation results of UL reliability for NR NTN

Frequency reuse factor

ITU Requirement

UL Reliability

Number of samples

FRF 1

99.9%

[99.97%]

[4]

FRF 3

99.9%

[99.97%]

[5]

 

Agreement

Capture the following observation and table in the TR 37.911:

It is observed that NR NTN fulfils connection density requirement.

 

Table Evaluation results of connection density for NR NTN

Traffic model

Frequency reuse factor

ITU Requirement

Connection density(/km2)

Bandwidth (kHz)

Number of samples

1 message/day/device

FRF1

500

[7334]

180

[4]

FRF3

500

[28115]

540

[4]

1 message/2 hours/device

FRF1

500

[611]

180

[4]

FRF3

500

[2340]

540

[4]

 

Agreement

The same energy efficiency aspects from the terrestrial self-evaluation in the report TR 37.910 apply for NTN as well on network side and device side. Thereby the text on the energy efficiency requirement from TR 37.910 can be reused for TR 37.911 with changes as necessary, considering only 15 kHz subcarrier spacing.

 

 

Final summary in R1-2308871        Feature Lead Summary#3 on self-evaluation results for NR NTN            THALES

8.15.33    Self-evaluation results for IoT NTN

R1-2308904         Self-evaluation results for IoT NTN               Huawei, HiSilicon

R1-2309155         Discussion on the Self-evaluation results for IoT NTN              ZTE

R1-2309609         Self-evaluation results for IoT NTN               OPPO

R1-2310321         Evaluation results for IoT NTN       MediaTek Inc.     (rev of R1-2309985)

R1-2310392         Self-evaluation results for IOT NTN              Qualcomm Incorporated        (rev of R1-2310167)

 

R1-2310500         Feature Lead summary for 8.15.3: Self-Evaluation Results for IoT NTN             Moderator (MediaTek)

 

Agreement

For eMTC evaluations, companies to report the TBS size used.


 RAN1#115

8.15   Study on Self-Evaluation towards the IMT-2020 Submission of the 3GPP Satellite Radio Interface Technology

Please refer to RP-231296 for detailed scope of the SI.

 

R1-2312511         Session notes for 8.15 (Study on Self-Evaluation towards the 3GPP submission of a IMT-2020 Satellite Radio Interface Technology)              Ad-Hoc Chair (Huawei)

Friday decision: The session notes are endorsed and contents reflected below.

 

[115-R18-Sat_Eval] – Alberto (Qualcomm)

Email discussion on self-evaluation towards the 3GPP submission of a IMT-2020 satellite radio interface technology

-        To be used for sharing updates on online/offline schedule, details on what is to be discussed in online/offline sessions, tdoc number of the moderator summary for online session, etc

 

 

R1-2312444         Text Proposal to TR 37.911 for Connection Density evaluation for IoT NTN and NR NTN            MediaTek, Thales, Qualcomm      (rev of R1-2312001)

Agreement

The TP to TR 37.911 for Connection Density evaluation in R1-2312444 is endorsed.

 

---------------------------------

From AI 5

R1-2310784         LS to RAN1 on RAN2 progress of NTN Self Evaluation              RAN2, Ericsson

Decision: To be handled in agenda item 8.15. To be moderated by Asbjorn (Ericsson).

R1-2312175         [Draft] Reply LS on RAN2 progress of NTN Self Evaluation              Ericsson

No identified issues related to the assumptions or the final evaluation values provided in RAN2 TP. No need to send a reply.

8.15.1    Evaluation methodology

R1-2311204         Discussion on the evaluation methodology of the self-evaluation              ZTE

R1-2311257         Discussion on self-evaluation methodology for IMT-2020 satellite radio interface     OPPO

R1-2312058         Further discussion on self-evaluation assumptions      Qualcomm Incorporated

R1-2312139         On evaluation criteria for adopting the evaluation results for TR 37.911   Nokia, Nokia Shanghai Bell

R1-2312149         Evaluation methodology of IMT-2020 satellite           Huawei, HiSilicon

 

R1-2312355         Feature lead summary on Evaluation Methodology for IMT-2020 satellite      Moderator (Qualcomm Incorporated)

From Tuesday session

Agreement

For the number of retransmissions in HRC-s:

·       The SNR value (required SNR) will be obtained by averaging the submitted SNR values to R1#115.

·       The transmission bit rate and spectral efficiency will be calculated assuming 4 transmissions (4kbps, 0.022 bps/Hz)

Agreement

The link budget template in R1-2312355 (v3) is endorsed, subject to further check during R1#115.

·       The link budget template includes only the average SNR for each channel and scenario (and not the individual SNR values reported by companies)

8.15.2    Self-evaluation results for NR NTN

R1-2310856         Self-evaluation results for NR NTN Huawei, HiSilicon

R1-2310940         Self-evaluation results for NR NTN THALES

R1-2311116         Discussions on self-evaluation results for NR NTN     vivo

R1-2311205         Discussion on the Self-evaluation results for NR NTN              ZTE

R1-2311258         Self-evaluation results for NR NTN OPPO

R1-2311562         Evaluation results of NR-NTN for IMT-2020 satellite radio interface technology          Panasonic

R1-2311566         Self-evaluation results for NR NTN Beijing Xiaomi Mobile Software

R1-2312322         Self-evaluation results for NR NTN NTT DOCOMO, INC.              (rev of R1-2311641)

R1-2311750         Self-evaluation results for NR NTN CCU, ITRI

R1-2312265         Self-evaluation results for NR NTN Qualcomm Incorporated              (rev of R1-2312059)

R1-2312140         Comparison results related to IMT-2020 Satellite for NR over NTN for Earth Fixed Cell Vs. Earth Moving Cell       Nokia, Nokia Shanghai Bell

R1-2312162         Satellite IMT-2020 self-evaluation results for NR NTN              Ericsson

R1-2312447         Further evaluation results for NR NTN          CATT

 

R1-2310941         Feature Lead Summary#1 on self-evaluation results for NR NTN      Moderator (THALES)

From Tuesday session

Agreement

The updated results of CL, Geometry SIR and Geometry SINR simulated on DL and UL transmissions reported within the attached template will be captured in the TR 37.911 as in Attachment B.1_ Calibration.

 

Agreement

Confirm the values of the evaluation results of NR satellite access mobility under 250 km/h agreed in RAN1#114bis with the following modification.

Table  Evaluation results of NR satellite access mobility under 250 km/h

Frequency reuse factor

ITU Requirement

Value

Number

of samples

FRF1

Normalized traffic channel link data rate (bit/s/Hz)

0.005

0.07

4

Residual decoded packet error ratio

1%

[0.16%] 0.18%

4

FRF3

Normalized traffic channel link data rate (bit/s/Hz)

0.005

0.14

4

Residual decoded packet error ratio

1%

[0.34%]

0.33%

4

 

Agreement

Adopt the TP for clause 4.9 of TR 37.911 on Mobility evaluation in NR satellite access provided within the attached document (Attachment: Att  TP for TR37.911- Mobility) with the addition of “Value” at the top of the third column of the table.

 

Agreement

Confirm the following evaluation results of DL and UL reliability for NR satellite access:

 

Table 1: Evaluation results of DL reliability for NR satellite access

Frequency Reuse Factor

ITU Requirement

DL Reliability

Number of samples

FRF 1

99.9%

99.98%

4

FRF 3

99.9%

99.96%

5

 

Table 2: Evaluation results of UL reliability for NR satellite access

Frequency Reuse Factor

ITU Requirement

UL Reliability

Number of samples

FRF 1

99.9%

99.97%

4

FRF 3

99.9%

99.97%

5

 

Agreement

Adopt the TP for clause 6.1 of TR 37.911 on Reliability evaluation in NR satellite access provided within the attached document (Attachment: Att  TP for TR37.911- Reliability).

 

Agreement

The evaluation results of connection density for NR satellite access are updated as follow:

Table  Evaluation results of connection density for NR satellite access

Traffic model

Frequency reuse factor

ITU Requirement

Connection density(/km2)

Bandwidth (kHz)

Number of samples

1 message/day/device

FRF1

500

7205 [7334]

180

4

FRF3

500

27357 [28115]

540

4

1 message/2 hours/device

FRF1

500

600 [611]

180

4

FRF3

500

2277

[2340]

540

4

 

Agreement

Adopt the TP for clause 4.8 of TR 37.911 on Energy efficiency evaluation in NR satellite access provided within the attached document (Attachment: Att  TP for TR37.911- Energy efficiency).

 

 

R1-2310942         Feature Lead Summary#2 on self-evaluation results for NR NTN      Moderator (THALES)

From Friday session

Agreement

The proposals in section 12 of R1-2310942 are agreed.

8.15.33    Self-evaluation results for IoT NTN

R1-2311206         Discussion on the Self-evaluation results for IoT NTN              ZTE

R1-2311259         Self-evaluation results for IoT NTN               OPPO

R1-2312002         Evaluation results for IoT NTN Connection Density   MediaTek Inc.

R1-2312060         Self-evaluation results for IOT NTN              Qualcomm Incorporated

R1-2312150         Self-evaluation results for IoT NTN               Huawei, HiSilicon

 

R1-2312419         Feature Lead summary for 8.15.3: Self-Evaluation Results for IoT NTN             Moderator (MediaTek)

From Tuesday session

Agreement

Unbounded BLER results: Do not capture the values not bounded by 10% BLER in the results spreadsheet. But add a note to the Results Spreadsheet that one company showed that with unbounded BLER for FRF=1, higher connection density values are feasible due to higher spectral efficiency vs SINR.

 

Agreement

99%ile packet latency values: Capture in the TR that for the given connection density values the 99th percentile packet latency fulfils the <10 seconds requirement by a large margin.

 

Agreement

Bandwidth capture: Capture the bandwidth needed by the average result. Also add a note to say that number of users will scale up further with higher bandwidth. Capture also for NR.

 

Agreement

Agree the following terminology: “IoT NTN, i.e. NB-IoT and eMTC satellite access”.

 

Agreement

The IoT NTN _ConnDensity_Simulation Results in attachment of R1-2312419 are endorsed.