LTE Radio Network Planning Introduction V1.0

LTE Radio NetworkPlanning Introduction www.huawei.com HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Agenda 1 LTE RNP Overview 2 LTE RNP Dimensioning Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 2 LTE Network Life Cycle 100 90 80 70 60 50 Optimization after commercial launch 45 48 30 33 36 39 Number of Sites 42 15 18 21 24 27 0 3 6 9 12 40 30 20 10 0 Mature Network RNP is the first and important step in the LTE network life cycle. Launch Existing Site Resources LTE Radio Network Planning Pre-Launch Radio Optimization HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 3 Coverage from the outdoor to the indoor Wider coverage saves investment  Cost  Limited radio frequency resource requires capacity improvement Data Service requires much more resource Quality   Network quality competition among operators Higher requirement of network quality from subscribers 1. HUAWEI TECHNOLOGIES CO. quality and cost. RNP aims to find out the best balance among coverage. Huawei Confidential Page 4 .Huawei RNP Guideline 3C1Q theory Coverage    Capacity Seamless coverage gives operators a competitive advantage.. LTD. capacity. 3. 2. 4. LTD. digital map and subscriber distribution information Detailed Planning Outputs: Preliminary eNodeB numbers Inputs: Coverage target and site survey result Outputs: Actual site location and engineering parameters HUAWEI TECHNOLOGIES CO.. Capacity & Service Requirement Outputs: eNodeB coverage radius and site numbers based on coverage and capacity calculation 3. Preplanning Inputs: Coverage.Huawei LTE RNP Main Steps 1. Dimensioning 2. Huawei Confidential Page 5 . Inputs: Calculated coverage radius. Propagation model)   Huawei delivers Link budget  Capacity dimensioning  Site numbers/configuration  Cell radius in each morphology  Network development solution The output of dimensioning is important criteria to assess RNP solution  Background Interference Test (optional)  Propagation model tuning (optional)  Site location/ RF parameters configurations Search ring specifications  Prediction & Simulation  Cluster definition for project management   Nominal Planning Site survey/candidate site search Neighbor cell configuration  Cell parameters configuration  Algorithm configuration The operator provides: Naming conventions Existing sites information  Detailed Planning HUAWEI TECHNOLOGIES CO. Suburban ) Quality objective (QoS criteria)  Capacity requirement (Subscriber. Urban.. traffic model)  Link budget parameters (Penetration loss. LTD.  Huawei Confidential Network Deployment Page 6 .Detail LTE RNP Flow Agreement achieved by operator and Huawei Preparation Coverage area (Dense urban. Traffic Model S1&X2 Throughput … HUAWEI TECHNOLOGIES CO.Cell Edge Throughput -. LTD..Frequency Bandwidth -.Coverage Probability eNodeB Number … Capacity Requirements Active Users -.LTE RNP Output Overview Input Output Site Type Coverage Requirements -.Coverage Area Power/Channel -. Huawei Confidential Page 7 .Subscriber Forecast -.Polygon Definition -. . LTD. Huawei Confidential Page 8 .Agenda 1 LTE RNP Overview 2 LTE RNP Dimensioning Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning HUAWEI TECHNOLOGIES CO. .LTE Radio Network Dimensioning Flow Start Coverage Requirement Link Budget Cell Radius Capacity Requirement Capacity Dimensioning Satisfy Capacity Requirement? Adjust eNodeB Number No Yes Active User/S1&X2 Dimensioning eNodeB Amount & Configuration End HUAWEI TECHNOLOGIES CO. Huawei Confidential Page 9 . LTD. . Huawei Confidential Page 10 .Agenda 1 LTE RNP Overview 2 LTE RNP Dimensioning Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning HUAWEI TECHNOLOGIES CO. LTD. LTD.LTE Coverage Dimensioning Flow Geometrical Calculation Start Link Budget Propagation Model Cell Radius eNodeB Coverage Area Total Coverage Area/ eNodeB Coverage Area  eNodeB Number End Aim of coverage dimensioning  to obtain the cell radius  to estimate eNodeB number for coverage requirement HUAWEI TECHNOLOGIES CO. Huawei Confidential Page 11 .. LTE Link Budget Model – Uplink Tx Power MIMO Gain UE Ant Gain Slow fading margin Gain Margin Loss Interference margin Power level Body Loss Penetration Loss EIRP Objective: Max.. Allowed Path Loss Path Loss Cable Loss eNB Ant Gain Link segments HUAWEI TECHNOLOGIES CO. LTD. Huawei Confidential Page 12 Rx Sensitivity . Allowed Path Loss Penetration Loss Body Loss UE Ant Gain Link segments HUAWEI TECHNOLOGIES CO..LTE Link Budget Model – Downlink Tx Power MIMO Gain Gain Margin Loss Slow fading margin Cable Loss Interference margin Power level eNB Ant Gain EIRP Path Loss Objective: Max. Huawei Confidential Page 13 Rx Sensitivity . LTD. Factors Affecting LTE Link Budget Scenario Frequency Band Data Rate RB Number ICIC Factors Affecting LTE Link Budget Cell Load MCS TX Power Channel Model MIMO Some other factors such as antenna height. BPL. TMA. coverage probability… HUAWEI TECHNOLOGIES CO. Huawei Confidential Page 14 . LTD.. 5 0.31 PDSCH PUSCH 46 23 18 4 18. LTD.0 0.26 .5 -147.5 2600 Cell Radius (km) 0.5 -127.0 0.0 1.29 Page 15 0.1 -122.7 Area Coverage Probability 95% Shadow Fading Margin(dB) 9.5 124.0 18.of Shadow Fading (dB) 11.2 Cost231-Hata(Huawei) 30 Frequency (MHz) 1..3 0.7 6.LTE Link Budget Example Scenario FDD/TDD Morphology UE Location Channel Bandwidth (MHz) Channel Model DL/UL MIMO Scheme Cell Edge Rate(kbps) MCS Tx Max Tx Power (dBm) Required RB Tx Antenna Gain(dB) Tx Cable Loss(dB) Tx Body loss(dB) EIRP / Subcarrier(dBm) Rx SINR (dB) Rx Noise Figure (dB) Receiver Sensitivity/subcarrier(dBm) Rx Antenna Gain(dBi) Rx Cable Loss(dB) Rx Body loss(dB) Target Load Interference Margin(dB) Min Signal Reception Strength/subcarrier (dBm) HUAWEI TECHNOLOGIES CO.0 0.0 70% 50% 5.5 -131.0 32.2 PDSCH PUSCH -2.7 Huawei Confidential Path Loss & Cell Radius Penetration Loss(dB) PDSCH PUSCH 20 Std.0 0. PDSCH PUSCH FDD Dense Urban Indoor 20 ETU 3 2×2 SFBC 1×2 1024 256 QPSK 0.0 0.5 0.6 7 2.0 0.3 -1.0 0.25 QPSK 0.7 Max Allowed Path Loss(dB) Propagation Model eNodeB/UE Antenna Height (m) 125. LTD.Coverage Comparison b/w HSPA+ and LTE HUAWEI TECHNOLOGIES CO.  About 13% reduction in UMTS cell radius when loading increases from 50% to 70%  LTE is more robust against loading and cell radius reduction is only around 2..  LTE has better coverage than HSUPA and R99 under the same data rate  Loading increase will have more significant impact on UMTS coverage especially under high traffic loading.5% when loading increases from 50% to 70% Huawei Confidential Page 16 . LTD. Huawei Confidential Page 17 ..Agenda 1 LTE RNP Overview 2 LTE RNP Dimensioning Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning HUAWEI TECHNOLOGIES CO. . Huawei Confidential Page 18 Adjust eNodeB Number . LTD.LTE Capacity Dimensioning Flow Start Configuration Analysis Cell Average Throughput Calculation Traffic Model Analysis Subscribers Supported per Cell eNodeB Number (initialized by Coverage Dimensioning) Total Subscribers Satisfy Capacity Requirement? No Yes eNodeB Number End HUAWEI TECHNOLOGIES CO. Factors Affecting Cell Capacity Spectrum Bandwidth eNodeB Power MIMO Users’ Distribution Own Cell Load Factors Affecting Capacity Neighboring Cell Load Scheduling UE Performance IRC User Speed Capacity is controlled not only by hardware resources. Huawei Confidential Page 19 . LTD.. but also radio condition HUAWEI TECHNOLOGIES CO. 8 18.1 Urban 34.9 14.9 4.4 Suburban 6.6 10.8 26.4 21.5 14.3 9.1 19.0 LTE Cell Average Throughput from Field Test Commercial Downlink Cell Average Throughput Uplink Cell Average Throughput Remark VDF Phase3 16.1Mbps / 1.7 9..0 6.3 3. 100% Load.7 Suburban 26.75 bps/Hz - 20MHz system.9 9.68 bps/Hz (High Load) - 10MHz system.3 14.0 19.2 Suburban 13.3 19.55 bps/Hz 22 Mbps / 1. Huawei Confidential Page 20 .3 Urban 25.6 13.1 bps/Hz 20MHz system.5 Urban 16.8Mbps / 1. after optimization HUAWEI TECHNOLOGIES CO.8 37.3 6. LTD.5 14. OL-MIMO N4M 31.2 4.0 29.9 Suburban 19. after optimization TeliaSonera Norway 35Mbps / 1.7 28.0 6.LTE Cell Average Throughput (FDD)  LTE Cell Average Throughput from Simulation Bandwidth 5MHz 10MHz 15MHz 20MHz  Scenario DL 2x2 (Mbps) UL 1x2 (Mbps) DL 4x2 (Mbps) UL 1x4 (Mbps) Urban 8. 1 1.57 8.04 SU/RU 9.49 4.5 0. LTD..3 0.84 18.43 3.8 1.8 0.9 0.3 0.60 16.6 1.0 0.09 SU/RU 19.60 22.44 3.0 1.7 0.3 1.6 1.9 1.8 1. DwPTS:GP:UpPTS=10:2:2 DL 2x2 Bandwidth 10MHz 20MHz UL 1x2 DL 4x2 UL 1x4 Scenario Throughput (Mbps) Efficiency (bps/Hz) Throughput (Mbps) Efficiency (bps/Hz) Throughput (Mbps) Efficiency (bps/Hz) Throughput (Mbps) Efficiency (bps/Hz) DU/U 11.57 10.8 1.78 DL:UL=3:1.7 0. Huawei Confidential Page 21 .49 7.1 1.9 0.43 1.46 1.80 9.6 1.4 1.09 SU/RU 14.69 5.22 1.3 0.2 1.69 9.04 SU/RU 6.74 DU/U 22.1 1.5 0.4 0.74 DU/U 16.9 1.25 5.3 1.80 12.0 1.46 3.LTE Cell Average Throughput (TDD)  LTE Cell Average Throughput from Simulation DL 2x2 Bandwidth 10MHz 20MHz UL 1x2 DL 4x2 UL 1x4 Scenario Throughput (Mbps) Efficiency (bps/Hz) Throughput (Mbps) Efficiency (bps/Hz) Throughput (Mbps) Efficiency (bps/Hz) Throughput (Mbps) Efficiency (bps/Hz) DU/U 8.65 4.78 DL:UL=2:2. DwPTS:GP:UpPTS=10:2:2 HUAWEI TECHNOLOGIES CO.65 2.22 2.0 1.84 25.44 6.25 2.2 1.6 1. 10 4. 6. 6.89 Huawei Confidential Page 22 .00 2.00 0. 6. 34.72 0.00 HSUPA 10ms HSUPA 2ms HSUPA 16QAM LTE 5 MHz LTE 10MHz LTE 20MHz DL Cell Average Throughput(Mbps) LTE 20MHz.34 40.98 10.00 30.30 2.00 20.80 20.17 HSPA+(DC+64QAM).43 HSPA+(MIMO+64QAM).92 HSPA(16QAM).Capacity Comparison b/w HSPA+ and LTE UL Cell Average Throughput(Mbps) 19. LTD. 6. 16.00 HSPA+(64QAM).12 LTE 5MHz.00 LTE 10MHz.00 9. 7. 8.00 3.00 HSPA+(MIMO). HSPA+(DC+16QAM).41 HUAWEI TECHNOLOGIES CO..76 10. 6. 63 7 0.4 632 2526 File Transfer 20. LTD.2 1% Web Browsing 62.00% 0.63 7 0.69 600 1 1% 750.4 33685 101055 - - 8355 27853 Total HUAWEI TECHNOLOGIES CO.2 4737 25264 P2P file sharing 20.11 1200 1 1% 750. Page 23 .05 1% File Transfer 140.34 1200 1 1% Traffic Penetration Ratio BHSA Video Conference 0.2 1% 15.05 1% 250.53 1800 0.00% IMS Signalling User Behavior Busy Hour Throughput Per User (bps) UL DL 0.00% 0.11 1800 0.2 6316 6316 0.53 1800 1 1% 62. Huawei Confidential Traffic Model varies from different operators which is mainly used to calculate Busy Hour Average Throughput per User.Traffic Model Analysis (Sample) UL Traffic Parameters DL Bearer Rate (Kbps) PPP Session Time(s) PPP Session Duty Ratio BLER Bearer Rate (Kbps) PPP Session Time(s) PPP Session Duty Ratio BLER Video Conference 62..00% 0.34 600 1 1% P2P file sharing 250.53 1800 1 1% IMS Signalling 15.00% 5 31 31 Web Browsing 100. Agenda 1 LTE RNP Overview 2 LTE RNP Dimensioning Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning HUAWEI TECHNOLOGIES CO.. LTD. Huawei Confidential Page 24 . Huawei Confidential Page 25 . LTD.Active User Dimensioning  Active User Definition   Active users is also called RRC-Connected Users which refer to the users having a RRC connection with the network Directly influences eNodeB quotation and controlled by software license PPP Session Data call (session) WWW Data call (session) WWW time • PPP Time: Duration of PPP Session RRC_Connected (Active User) RRC RRC1 RRC2 RRC3 RRC_Idle Packets • BHSA: Busy Hour Session Attempt time • Ratio of RRC to PPP: Percentage of RRC during one PPP session • Number of User: Number of users using service i Packet2 Packet1 Packet3 time Number _ ActiveUser _ i  BHSA * PPP _ Session _ Time * RatRrcToPP P * Number _ User / 3600 Total _ Number _ ActiveUser   Number _ ActiveUser _ i * Percentage _ Service _ i i HUAWEI TECHNOLOGIES CO.. DL:UL=4:1) =a/d = e x 3 = 760 subscribers Huawei Confidential Page 26 .Active User Dimensioning Case Study Traffic Volume based Dimensioning Step 1 Cell Capacity Step 2 Monthly traffic volume per user Step 3 Daily traffic Step 4 BH throughput (Mbps) Step 5 Subscribers supported in a cell Step 6 Subscribers supported in a site HUAWEI TECHNOLOGIES CO.5bps/Hz/cell 10GByte package per user Assumptions: • S111 • 10MHz • 10GB package = b / 30 days = c x 8x 10%/3600s x 0.8 x 1000 d e f (BH carries 10% of daily traffic assumed.. LTD. a b c 10MHz*1. . LTD.Agenda 1 LTE RNP Overview 2 LTE RNP Dimensioning Coverage Dimensioning Capacity Dimensioning Active User Dimensioning S1&X2 Dimensioning HUAWEI TECHNOLOGIES CO. Huawei Confidential Page 27 . NodeB Huawei Confidential Page 28 .S1&X2 Interface of LTE 2G/3G: Legacy Architecture LTE: Flat Architecture MME / S-GW MSC/SGSN/GGSN MME / S-GW S1 S1 RNC S1 S1 BSC X2 E-UTRAN eNB eNB X2 X2 eNB BTS BTS NodeB HUAWEI TECHNOLOGIES CO.. LTD. 2 4. Assuming the ER is 1. Peak to average traffic ratio is 1. LTD.S1&X2 Dimensioning Case Study (1) Assumptions: 1. Number of subscribers per eNodeB is 1000 5..37 (for packet size 300 bytes) HUAWEI TECHNOLOGIES CO. Uplink and downlink busy hour data traffic volume per subscriber is 25kbps 2. Traffic data ratio for uplink and downlink is 1:4 3. Huawei Confidential Page 29 . Assuming IPV4 and IPsec with tunnel mode is used for IP over Ethernet transmission 6. 1* 2%  0.S1&X2 Dimensioning Case Study (2) Control Plane T _ control plane  T _ Total _ user _ Plane / Site * 2%  41.26Mbps HUAWEI TECHNOLOGIES CO.1  41.82Mbps S1 Bandwidth T _ S1 / Site  T _ control _ Plane / Site  T _ Total _ user _ plane / Site  0.92 * 3%  1.92Mbps X2 Bandwidth T _ X 2 / Site  T _ S1 / Site * 3%  41. LTD.. Huawei Confidential Page 30 .82  41. huawei.Thank you www.com .