3 GPP TSG RAN WG 1 86 bis
3 GPP TSG RAN WG 1 #86 bis Lisbon, Portugal, Oct 10 - 14, 2016 Agenda item: 8. 1. 1. 2 R 1 -16 xxxxx Summary of updated assumptions and results for NR MA Huawei, Hi. Silicon
Reference 1 R 1 -1610745 WF on summary of UL non-orthogonal MA progress Huawei, Hi. Silicon Agreements: • Capture the observations on page 4, and slides 7 -10 into TR 38. 802, with the following updates: • Non-orthogonal MA schemes using an advanced receiver (e. g. SCMA, MUSA, IGMA) have little or no performance loss due to MA signature (except RS) collision. • Some Nnon-orthogonal MA results combined with narrowband and/or repetition operations can potentially reach • Non-orthogonal MA, in some of the evaluated scenarios, provides significant gain in terms of UL link-level sum throughput and overloading capability with ideal and realistic channel estimation in the evaluated scenarios • Slides 9 -10 are to be updated based on updated simulation results submitted to this meeting
Information 1 • Slides 9 -10 in R 1 -1610745 are to be updated according to updated simulation results submitted to this meeting
Appendix 1: LLS evaluation, Table 3 (1/2) – Table of contributions comparing non-orthogonal MA schemes with OFDMA SCMA MUSA PDMA LDS-SVE IGMA NCMA Contributions R 1 -164037 R 1 -166094 R 1 -167105 R 1 -165435 R 1 -167602 R 1 -1608853 R 1 -166404 R 1 -1608953 R 1 -165287 R 1 -167870 R 1 -165435 R 1 -167602 R 1 -1608755 R 1 -164329 R 1 -166670 R 1 -1610478 R 1 -163992 R 1 -166750 R 1 -1609041 R 1 -164557 R 1 -166876 R 1 -1609223 Spectral efficiency (Bit/RE per UE) 0. 05~0. 5 0. 125, 0. 25 0. 0417, 0. 0833, 0. 2083, 0. 3333 0. 33, 0. 35 0. 083, 0. 171, 0. 222 0. 0625, 0. 25 4, 6, 8 Number of UEs 4, 6, 8, 12 4~40 4, 8, 12 6 6, 8 (10~16 not compared with OFDMA) Channel Type TDL-A, TDL-C, EPA TDL-C TDL-A, TDL-C, EPA TDL-A, TDL-B, TDL-C TDL-A, TDL-C, TDL-C Antenna Config. 1 T 2 R 1 T 4 R 1 T 2 R SNR distribution Equal/ unequal Equal MA signature allocation Fixed/ random Random, No dedicate RS Fixed/ random Fixed Channel estimation Ideal/ realistic Ideal/ realistic Timing offset Within CP Within CP
Appendix 1: LLS evaluation Table 3 (2/2) – Table of contributions comparing non-orthogonal MA schemes with OFDMA NOCA LSSA NOMA GOCA RDMA LCRS MU MIMO over NB-Io. T RSMA NOCA Contribution s R 1 -165019 R 1 -167249 R 1 -1609651 R 1 -167340 R 1 -1609548 R 1 -167537 R 1 -1610078 R 1 -167536 R 1 -1609332 R 1 -167700 R 1 -1609497 R 1 -1610918 R 1 -1610375 R 1 -167872 R 1 -1609613 R 1 -1610118 R 1 -165019 R 1 -1609651 Spectral efficiency (Bits/RE per UE) 1/12 0. 0926, 0. 111 0. 144, 0. 25, 0. 5 0. 157 0. 222 0. 001~0. 33 1. 25, 0. 625 0. 25, 0. 375. 0. 5, 0. 75, 1 0. 069 Number of UEs 12, 18, 24 4, 6, 8, 12, 24 2, 4, 8, 12 6, 8, 12 1, 8 2 4 12, 18 TDL-A, TDL-C EPA, EVA, TDL-C TDL-A TDL-C Channel Type ETU TDL-C TDL-A, TDL-C Antenna Config. 1 T 2 R 1 T 2 R 1 T 4 R 1 T 2 R SNR distribution Equal/ unequal Equal/ uneuqal Equal/ uequal MA signature allocation Fixed/ random Fixed Fixed Channel estimation Ideal/ realistic Ideal/ realistic Ideal ideal/ realistic Timing offset Within CP/ beyond CP Within CP Within CP
Reference 2 R 1 -1610957 WF on Further Summary of LLS Results Huawei, Hi. Silicon Agreements: • Further capture the LLS results in the tables on Page 4, 5, 6, and 7 of R 11610957 into TR 38. 802, with the following updates: • The results are to be updated based on updated simulation results submitted to this meeting • Note: the empty entries in the table are due to absence of simulation data • Change “SE” in the relevant places of the tables to “bits/RE” • Add a note whether or not CRC is included in determining “bits/RE” in each result of the corresponding tables • Add references to the MA schemes in the tables • Also add receiver assumptions in the assumption table • In addition, provide a reference to the spreadsheet capturing all LLS results • Note: CRC is excluded in coding rate determination • This is only a clarification, not to be captured in the TR
Reference 3 Observations: The following non-orthogonal multiple access schemes have been reported up to RAN 1#86 for at least UL NR MA (listed in the order of proposed time, i. e. , increasing tdoc number) – Sparse code multiple access (SCMA) (e. g. , R 1 -162153) – Multi-user shared access (MUSA) (e. g. , R 1 -162226) – Low code rate spreading (LCRS) (e. g. , R 1 -162385) – Frequency domain spreading (e. g. , R 1 -162385) – Non-orthogonal coded multiple access (NCMA) (e. g. , R 1 -162517) – Non-orthogonal multiple access (NOMA) (e. g. , R 1 -163111) – Pattern division multiple access (PDMA) (e. g. , R 1 -163383) – Resource spread multiple access (RSMA) (e. g. , R 1 -164688) – Interleave-Grid Multiple Access (IGMA), (e. g. , R 1 -163992) – Low density spreading with signature vector extension (LDS-SVE) (e. g. , R 1 -164329) – Low code rate and signature based shared access (LSSA), (e. g. , R 1 -164869) – Non-orthogonal coded access (NOCA), (e. g. , R 1 -165019) – Interleave Division Multiple Access (IDMA), (e. g. , R 1 -165021) – Repetition division multiple access (RDMA), (e. g. , R 1 -167535) – Group Orthogonal Coded Access (GOCA), (e. g. , R 1 -167535)
Information 2 • The following pages are updated according to “Page 4, 5, 6, and 7 of R 1 -1610957” and some input from companies, and are ongoing to be updated by each company following the agreements in reference 2
Table 1 Range of SNR gain of No. MA over OFDMA in d. B (with ideal channel estimation) Note: SNR is defined as total received SNR per RE per Rx antenna at e. NB SCMA R 1 -162153 R 1 -166094 R 11608853 # of UEs 2 4 SE Range (bits/RE per UE) PDMA GOCA R 1160933 2 LSSA R 1167340, R 1160954 8 LCRS NB-Io. T MU R 1160961 3 R 1167872 NOMA R 1161007 8 NO R 165 R 160 1 RDMA R 1160933 3 LDSSVE NCMA R 11609223 RSMA R 11610118 MUSA R 11608953 IGMA R 1160904 1 MFbased SIC MPA w/o iterati ve decod ing MMSEIRC w/ SIC Iterative Demapp er MMSESIC Chip-by chip MAP Iterativ e MMSEPIC MMS E-PIC SIC MMSECWIC MM P MPA MFbased SIC CRC excluded CRC exclude d CRC exclud ed CRC excluded CRC exclude d CRC include d CRC exclu ded CRC exclude d CR exc d MA signature fixed & random MA signat ure fixed MA signatu re fixed MA signat ure fixed MA signatur e random MA signatu re fixed MA signa ture fixed MA signatu re fixed M sign re f [0. 1, 3. 7) (0. 2, 1. 0] [0. 05, 0. 1] (0. 1, 0. 2] (0. 2, 1. 0] [0. 0, 0. 8] 0. 3[SE = 0. 0833 ] - - - 0. 7 - - - [1. 3, 1. 8] 0. 3[ SE =0. 20 83] - - - - [1. 9, 2. 5] 0. 8 [SE = 0. 333 3] - - - 1. 7 [0. 9, 6. 5] - - [0, 0. 1] [0. 5, 2. 2]
Table 2 Range of SNR gain of No. MA over OFDMA in d. B (with realistic channel estimation) Note: SNR is defined as total received SNR per RE per Rx antenna at e. NB SCMA # of UEs 2 SE Range (bits/RE per UE) 6 8 IGMA LSSA NOMA NB-Io. T MU LCRS MMSEIRC w/ SIC MMSE-SIC Chipby chip MAP Iterative MMSEPIC MMSECWIC SIC MMSEPIC CRC excluded CRC exclud ed CRC included CRC excluded MA signatur e fixed MA signature random MA signat ure fixed MA signatur e fixed GOCA RDMA LDS-SVE NCMA MPA MFbased SIC MPA w/o iterative decoding CRC excluded MA signature fixed & random MA signatur e fixed [-1. 3, 3. 3] (0. 2, 1. 0] [0. 05, 0. 1] 4 MUSA PDMA [0, 0. 4] 0. 1[SE = 0. 0833] - -1. 4 (0. 1, 0. 2] [0. 8, 1. 4] 0. 2[SE = 0. 2083] - - (0. 2, 1] [1. 6, 2. 2] 0. 5[SE = 0. 3333] - - - [0. 05, 0. 1] [0, 1. 1] - - - (0. 1, 0. 2] [2. 2, 2. 4] - - (0. 2, 1] [3. 1, 4. 5] - [0. 05, 0. 1] [0. 1, 1. 8] (0. 1, 0. 2] [2. 5, 3. 4] - - - 0. 2 0. 3 - - -1. 7 0. 0 - - - 0. 6 - - [0. 4, 0. 8] [0. 2, 0. 6] [0. 8, 1. 2] 1. 1 1. 7 - - 0. 5[SE = 0. 0833] - -1. 9 0. 4 - - 2. 2[SE = 0. 2083] [0. 1, 0. 7] [-0. 1, 0. 5] - - 1. 9 - 4. 6 2. 9[SE = [0. 6, 1] [1. 1, 2. 5] [0. 5, 1. 5]
Table 3 (1/2) Scheme NB-Io. T MU SCMA R 1 -1608853 GOCA RDMA LDS-SVE Overloading Factor number of supported UEs SE region (bits/RE) Antenna Configuration Bandwidth (KHz) 1 0. 072/1. 23/1. 77 1 T 2 R 3. 75 165. 13/155. 07/151. 18 1 0. 01/0. 43/1. 77 1 T 2 R 15 164. 18/154. 19/145. 26 1 0. 375/0. 625 1 T 2 R 180 143. 1/139. 4 142. 0/138. 0 1 0. 375/0. 625 1 T 2 R 45 147. 3/143. 3 146. 1/141. 6 2 0. 375/0. 625 1 T 2 R 90 147. 3/145. 8 141. 4/144. 8 2 0. 3750. 625 1 T 2 R 180 145. 8/143. 3 144. 3/141. 3 4 0. 0133 1 T 2 R 15 - [165. 24, 166. 84] 6 0. 222 1 T 2 R 1080 135. 77 135. 27 8 0. 222 1 T 2 R 1080 135. 27 134. 67 8 0. 157 1 T 2 R 1080 137. 27 136. 57 12 0. 157 1 T 2 R 1080 136. 57 135. 87 6 0. 222 1 T 2 R 1080 135. 57 135. 07 8 0. 222 1 T 2 R 1080 134. 87 134. 27 8 0. 157 1 T 2 R 1080 137. 07 136. 37 12 0. 157 1 T 2 R 1080 136. 17 135. 37 6 0. 33 1 T 2 R 360 [134. 24, 134. 44] [132. 84, 133. 34] 6 MCL range of No. MA in d. B (Ideal Channel Estimation) MCL range of No. MA in d. B (Realistic Channel Estimation) Note: SNR per UE per Rx[128. 97, antenna 0. 35 is defined 1 T 2 R as received 1080 [129. 87, 130. 87] 129. 27] at e. NB 4 0. 0625 1 T 2 R 720 145. 13 - 6 0. 0625 1 T 2 R 720 145. 03 -
Table 3 (2/2) Scheme RSMA MUSA LSSA LCRS NOMA IGMA PDMA Overloading Factor number of supported UEs SE region (bits/RE) Antenna Configuration Bandwidth (KHz) MCL range of No. MA in d. B (Ideal Channel Estimation) MCL range of No. MA in d. B (Realistic Channel Estimation) 200% 0. 5 1 T 2 R 360 136. 14 - 200% 0. 75 1 T 2 R 360 133. 64 - 200% 1 1 T 2 R 360 131. 64 - 20 0. 0078 1 T 2 R 15 - 165. 74 20 0. 0313 1 T 2 R 15 - 159. 74 20 0. 125 1 T 2 R 180 - 142. 95 24 0. 0156 1 T 4 R 15 - 165. 74 24 0. 125 1 T 4 R 15 - 156. 74 24 0. 125 1 T 4 R 180 - 145. 95 200% 0. 166 1 T 2 R 960 140. 21 - 300% 0. 166 1 T 2 R 2160 139. 16 - 200% 0. 375 1 T 2 R 480 138. 19 - 200% 0. 0011 1 T 2 R 180 166. 23 - 100% [0. 00163, 0. 208] 1 T 2 R 180 [142. 55, 167. 35] [142. 25, 161. 75] 800% [0. 00163, 0. 208] 1 T 2 R 180 [141. 85, 167. 45] [141. 45, 161. 75] 100% 0. 144 1 T 2 R 180 - 143. 89 6 0. 083 1 T 2 R 1080 141. 17 6 0. 014 1 T 2 R 1080 143. 47 6 0. 0625 1 T 2 R 15 164. 04 8 0. 0417 1 T 2 R 720 137. 03 136. 48 8 0. 0833 1 T 2 R 720 135. 33 134. 53 8 0. 2083 1 T 2 R 720 131. 53 130. 88
Reference 4 R 1 -1610793 WF on SLS observations of non-orthogonal MA Huawei, Hi. Silicon, ZTE Agreements: The observations on slide 3, along with appendix on slides 5 and 6, are agreed, with the following update: o All simulated non-orthogonal MA schemes with grant-free with advanced receivers (some with ideal channel estimation while others with realistic channel estimation) provides significant o compared to a respective grant-free reference scheme assumed based on OFDMA with grant-free by each company o Add a note to the appendix: Note: the empty entries in the table are due to absence of simulation data o Add two rows in the tables in the Appendix listing the receive type(s) and HARQ combining used by each company o For the columns in the tables in the appendix with both ideal and realistic channel estimation, split each column into two columns capturing results with ideal and realistic channel estimation separately o slides 5 -6 are to be updated based on updated simulation results submitted within this meeting
Information 3 • The following pages are updated according to “slides 5 -6” of R 1 -1610793 and some companies input, and are ongoing to be updated by each company following the agreements in reference 3
Appendix 1: preliminary SLS results (1/2) Huawei SCMA (R 1 -1608854) 1732 m QC RSMA (R 1 -1610120) 1732 m ZTE MUSA (R 1 -1608952) 1732 m CATT PDMA (R 1 -1608756) 1732 m MA Inter-BS distance Simulation 6 PRB 1. 08 MHz 6 PRB 4 PRB bandwidth BS antenna tilt 92 degress 6 degress No Mechanical downtilt 12 degree BS antenna element 8 d. Bi, including 3 d. B cable gain + connector loss cable loss (M, N, P, Mg, Ng) = 1 x 2 (M, N, P, Mg, Ng) = (10, 1, 2, 1, 1), dv = dh = (M, N, P, Mg, Ng) = (10, 1, 2, 1, 1), TXRU to 0. 5 λ 2, 1, 1), 2 TXRU, one TXRU (M, N, P, Mg, Ng) = antenna element BS antenna 2 TXRU, TXRU to maps to 10 antenna (1, 1, 2, 1, 1), 2 TXRU, one mapping: configuration antenna element TXRU maps to one (M, N, P, Mg, Ng) = (10, 1, mapping: (50% indoor users has antenna element 1, 1, 1) (MTXRU, N, P, Mg, Ng) = additional 10 d. B (1, 1, 2, 1, 1) penetration loss) UE antenna gain -4 d. Bi UL power control Channel estimation Packet size P 0= -97. 8 d. Bm, alpha=0. 9 P 0 = -126. 4 d. Bm , Alpha = Po = -100 d. Bm, alpha = 1 P 0=-95 d. Bm and alpha = 1 1 Ideal | realistic ideal Fixed to 40 bytes as TBS, and the Follow TR 45. 820, TBS of reference scheme is 200 bit is used to segmented to 2 segment the packets Samsung IGMA (R 1 -1609042) 1732 m CATR SCMA (R 1 -1609 1732 m 6 PRB 4 PRB 6 degrees 8 d. Bi, including 3 d. B cable loss 100 degree 8 d. Bi, including 3 d. B (M, N, P, Mg, Ng) = (10, 1, 2, 1, 1), dv = dh = 0. 5 λ 1 x 2 2 TXRU, TXRU to antenna (M, N, P, Mg, Ng) = (10, 1, 2, 1 element mapping: TXRU maps to 10 anten (MTXRU, N, P, Mg, Ng) = (1, 1, 2, 1, 1) -4 d. Bi P 0=-90 d. Bm, alpha=1 ideal, realistic Fixed 40 bytes, with segmentation to 2 packets for ODFMA and PDMA. Fixed by 40 bytes, No segmentation -4 d. Bi OFDMA: alpha=1, P 0= -90 alpha = 1, P 0=-95 ideal Fixed by 20 by Packet dropping timer 1 s 10 s 1 s _ 1 s and 10 s _ No. MA receiver type MPA MMSE-IRC MMSE-SIC MPA Chip-by-chip MAP MPA HARQ signaling combining or not? Yes No HARQ combine Yes (repetition and combining) No HARQ comb HARQ until the fixed dropping timer No repetition or retra HARQ/Repetition OFDMA PAR at Maximum HARQ till packet dropping HARQ with random back Maximal number of HARQ repetition/retransmis timer to mimic the TTI -off until the fixed transmissions is 16. sions of 32 bundling. dropping timer. ICE RCE 0. 052 (@PDR = 10%, 1 s dropping
Appendix 1: preliminary SLS results (2/2) Intel MA LCRS (R 1 -1611008) ETRI LSSA (R 1 -1609549, R 1 -1611023) 1732 m DOCOMO NOMA (R 1 -1610077, R 1 -1610078) 1732 m MTK RDMA(R 1 -1609334) GOCA(R 1 -1609335) 1732 m Nokia LG NOCA (R 1 -1609651) NCMA(R 1 -1609224) Inter-BS distance 1732 m ISD=500 m Simulation 6 PRB 6 PRB 72 PRBs bandwidth BS antenna tilt 96 degree 102 degree No Mechanical downtilt 96 degree _ BS antenna element 8 d. Bi, including 3 d. B cable gain + connector loss cable loss BS antenna configuration 200 m, 1732 m 6 PRB 102 degree 8 d. Bi, including 3 d. B cable los M, N, P, Mg, Ng) = 1 x 2 (M, N, P, Mg, Ng) = (1, 1, 2, 1, 1), 2 TXRU, one (M, N, P, Mg, Ng) = (10, 1, (1, 1, 2, 1, 1), 2 TXRU, one (1, 1, 2, 1, 1), 2 TXRU, TXRU maps to one 2, 1, 1), 2 TXRU, one TXRU maps to one one TXRU maps to one antenna element maps to 10 antenna element antenna element UE antenna gain -4 d. Bi UL power control Alpha = 0. 8, fixed target SNR = 3 d. B Channel estimation ideal -4 d. Bi Alpha=1, P 0= -90 d. Bm Alpha=0. 7, P 0= -60 d. Bm Alpha = 1, P 0 = -95 d. Bm ideal -4 d. Bi Alpha = 0. 8, P 0 = -80 d. Bm ideal -4 d. Bi Alpha=1, P 0= -90 d. Bm ideal, realistic 20~200 Bytes based on TR 45. 820; Fixed packet size 40 Bytes (segmentation unknown) Fixed 40 Bytes, segmented into 2 20 Bytes packets. 100 bytes by using 72 PRB 20 bytes (no segmentation) ideal Packet size 20 bytes Packet dropping timer 128 ms _ 1 s and 10 s 1 s _ - No. MA receiver type MMSE-PIC (selective) MMSE-IRC + SIC MF-SIC+MMSE-IRC MMSE PIC MMSE IRC+SIC HARQ signaling combining or not? HARQ combining used combined Yes/No No HARQ combine No HARQ combining HARQ/Repetition Max of 15 HARQ retransmission; synchronous HARQ Max. 2 HARQ retransmission for comparison HARQ/no HARQ random back-off until the fixed dropping timer. No HARQ combining Max. number of retrial : 10 OFDMA PAR at target PDR (Packets/ms/sector) 0. 9 @PDR 4% 0. 25 @ PDR 1% _ PDR floor at 2. 5% OFDMA: 1. 2 (PDR@ 10%) ISD 200 m: 4. 1 (PDR@1%) ISD 1732 m: - (PDR@10%) 0. 1
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