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FDD-LTE Radio Network Planning

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Presentation on theme: "FDD-LTE Radio Network Planning"— Presentation transcript:

1 FDD-LTE Radio Network Planning
ZTE University

2 Contents FDD-LTE network deployment strategy FDD-LTE site selection
FDD-LTE network simulation FDD-LTE spectral efficiency

3 The process of FDD-LTE network planning

4 Information collection
Information collection is to gather any information relate to LTE network proposal, such as: Operator’s requirements Operator’s existent network sites density and distribution The frequency band and bandwidth available for LTE system The environment information of the city to be covered Subscribers and traffic model forecast Digital map ….

5 Which area the LTE radio network will be introduced in first?
Deployment strategy Which area the LTE radio network will be introduced in first?

6 Deployment strategy

7 Voice capacity + data capacity
Deployment strategy 800M LTE Operators need to operate their pipe precisely ! Urban Rural Hot Spots Voice capacity + data capacity Voice/Data coverage 2.1 HSPA 900/1800 GSM 900 GSM/UMTS 2.6G LTE Large cell for coverage Small cell for capacity Better indoor coverage to reduce power consumption LTE可以应用于多个环境

8 Requirements and targets
Coverage requirements Coverage area Coverage QoS Coverage special target Morphology Dense Urban Urban Suburban Rural Shadowing Standard Deviation(dB) 8 6 Area Coverage Probability 95% 90% Dense Urban Suburban Rural Cell Edge User Throughput (kbps) 512 384 256 128

9 Video/Audio Streaming
Requirements and targets Capacity requirements subscriber target and density Traffic model Stages and phases Typical service RAB Type Bearer Rate UL (kbps) Bearer Rate DL (kbps) Intensity (mErl) UL Vol. (kByte) DL Vol. (kByte) Voice 12.2 20 - -  Video conference Data 128 1.5 Video/Audio Streaming 256 180 750 Web Browsing / HTTP 500 125 450 FTP 2000 225 900 Gaming Interactive P2P 1500

10 Propagation model calibration
CW test Tune the propagation model parameters After calibration, the exact propagation model will be used in network design and planning

11 Radio network design Link budget analysis Capacity analysis

12 Radio network design Coverage Capacity Requirements Requirements
Link Budget Capacity analysis Cell radius and site number Site number and Cell radius Which is limitation The final site number and cell radius

13 Site selection and survey
Base on the network design result of cell range or inter-site distance Base on existent network site distribution information or other candidate site, select fit legacy site to reuse or add new site. Site selection can be run by tools or manually. Candidate site Result site

14 Coverage prediction and simulation
Parameters setting Coverage prediction Monte carol simulation

15 The process of FDD-LTE network planning

16 Contents FDD-LTE network deployment strategy FDD-LTE site selection
FDD-LTE network simulation FDD-LTE spectral efficiency

17 Site Selection How to process so many candidate sites and so large area How to priority covered POI

18 Site Selection Principle
Inter site distance following network design result. Preference for the existing base station Try to select the ideal honeycomb structure of the site The selected site should be close to important areas and dense areas Antenna must have enough isolation space to avoid interference between systems Try to avoid select very high build or hill as site address in urban area

19 Manual site selection We found tool has obvious limits in term of balancing between threshold, coverage, traffic load, cost of sites etc. Manually adjust the result is necessary. Network design result: Cell range Inter site distance

20 Site Selection Method Proposal I Proposal II

21 Site Selection Method Proposal I 295 site cover POI Proposal I
Best Signal Level (dBm) >=-80 number of POI % coverage>95% 363 69% 95%>coverage>85% 13 2% 85%>coverage>75% 12 coverage<75% 146 27% Total 534 100%

22 Site Selection Method ProposalII Proposal II
total 445 Anchor Sites 154 ProposalII Proposal II Best Signal Level (dBm) >=-80 number of POI % coverage>95% 499 93% 95%>coverage>85% 6 1% 85%>coverage>75% 5 coverage<75% 26 5% Total 534 100%

23 Site Selection Method ProposalII Proposal II total 1000
Anchor Sites 188

24 Contents FDD-LTE network deployment strategy FDD-LTE site selection
FDD-LTE network simulation FDD-LTE spectral efficiency

25 FDD-LTE network planning flow

26 Planning Parameters Digital map database Propagation model Network
Service parameters

27 Digital map

28 Digital map Clutter Name Surface (km2) Percentage(%) POI 51.257 0.13%
High Density Urban - City Center 1.861 0.005% Commercial/Industrial 0.28% Airports 42.062 0.11% Medium Density Urban 1.79% Low Density Urban 2,142.73 5.42% Dense Forest 13,071.82 34.83% Water 3,953.01 10.00% Open - Vegetated 0.31% Open - Non Vegetated 18,636.93 47.14% total 100%

29 Propagation model

30 Propagation model K1 K2 K3 K4 K5 K6 K7 Dense Urban 64.99 48.72 -26.5
0.61 -8.64 3.23 Urban 13.66 44.41 5.77 0.06 -6.55 1.63 Suburban -7.01 42.69 22.83 0.45 2.31 Rural 3.85 41.24 19.26 0.33 -7.05 -0.33 Highway 28.6 44.4 5.9 -10 -1.21 Dense Urban Urban Suburban Rural Highway Coastal High Rise Dense Forest 1.14 2.03 1.54 3.04 Open - Vegetated -0.69 0.95 -0.66 2.2 Open - Non Vegetated 0.52 0.12 -0.42 Low Density Urban 0.76 0.89 1.55 Medium Density Urban -0.03 -0.48 -1.22 0.68 High Density Urban - City Center 1.95 -3.57 -3.21 Commercial/Industrial -2.23 -2.72 -0.25 2.63 Airports -2.15 -7.78 Water 0.44 -5.7

31 Propagation model 3D Ray Tracing Model Building Data Base

32 Network information Sites Site Equipment Transmitters Cells Neighbours
1 n n 1 Transmitters n 1 Cells n Neighbours

33 Service information Traffic Map Mobility Clutter Weights Environment
1 Environment User Profile Terminals Service Usage 1 n Services Mobility Radio Beare 1 n

34 Traffic mix 3G traffic mix example Service Type Typical service
RAB Type (UL:DL) Bearer Rate UL (kbps) DL (kbps) Intensity (mErl) UL Vol. (kbit) DL Vol. CS Voice DCH:DCH 12.2 20.0 - -  Video telephony 64 1.5 PS 60 250 Audio/video streaming 128 6 150 Mobile office Internet /e-commerce DCH:HSDPA 500 50 300 HSUPA:HSDPA 200 600

35 SMALLER CHEAPER FASTER
Traffic mix iPhone and other new terminals push the Data serveic 2007 $599 SMALLER CHEAPER FASTER 2008 $199 % Subs Mobile TV or Video Total Bandwidth New application 36% 30.4% 20% 49.7% 30.9% % of users 1.5% Facebook 1% YouTube 4% Social networks 2.6% 4.6% All phones Google Maps Mobile video iPhone iPhone Average Orange France Typical user :~20 MB /month iPhone : 400 MB/month Data card : 600 MB/month 147 million devices in 2014 50% = embedded modems 42% = USB modems 35

36 Traffic mix China Unicom UMTS/HSPA traffic mix iPhone and Data card
UL DL Speech 12.2(erl) 0.02 CS64(erl) 0.001 PS64/64(kbps) 0.0113 0.0452 PS64/128(kbps) 0.0045 0.0226 PS64/384(kbps) 0.0019 HSPA(kbps) 0.1751 1.0509 Average Date traffic @BH : 0.51MB For a month： 64MB Data Taffic/month iPhone :400 MB Data card : 600 MB Data iPhone :4 MB Data card : 4.8 MB 36

37 FDD-LTE network planning flow

38 Signal Level Coverage Prediction

39 RS receive level prediction
Focus Zone RS receive level prediction Coverage by Signal Level 0 Surface (km2) % Focus Zone 31,422.26 79.5 Best Signal Level (dBm) >=-80 4,186.34 10.6 Best Signal Level (dBm) >=-82 5,522.01 14 Best Signal Level (dBm) >=-86 8,962.24 22.7 Best Signal Level (dBm) >=-93 17,507.21 44.3 Best Signal Level (dBm) >=-96 21,793.95 55.1 Best Signal Level (dBm) >=-105

40 RS receive level prediction
Proposal II Proposal I Focus Zone

41 RS receive level prediction
POI Best Signal Level (dBm) >=-80 number of POI % coverage>95% 499 93% 95%>coverage>85% 6 1% 85%>coverage>75% 5 coverage<75% 26 5% Total 534 100%

42 RS receive level prediction
Population or Traffic Coverage by Signal Level 0 %Population 99.82 Best Signal Level (dBm) >=-80 37.49 Best Signal Level (dBm) >=-82 46.57 Best Signal Level (dBm) >=-86 65.73 Best Signal Level (dBm) >=-93 90.62 Best Signal Level (dBm) >=-96 96.33 Best Signal Level (dBm) >=-105

43 RS receive level prediction
High Way Coverage by Signal Level 0 % Best Signal Level (dBm) >=-80 31.76 Best Signal Level (dBm) >=-82 37.9 Best Signal Level (dBm) >=-86 51.02 Best Signal Level (dBm) >=-93 74.38 Best Signal Level (dBm) >=-96 82.2 Best Signal Level (dBm) >=-105 93.66

44 RS receive level prediction
2000sites sites Surface Coverage by Signal Level Surface (km2) % Focus Zone Best Signal Level (dBm) >=-80 8,258.52 20.9 Best Signal Level (dBm) >=-82 10,305.11 26.1 Best Signal Level (dBm) >=-86 15,134.02 38.3 Best Signal Level (dBm) >=-93 25,553.83 64.6 Best Signal Level (dBm) >=-96 29,983.91 75.8 Best Signal Level (dBm) >=-105 37,613.23 95.1

45 Average throughput prediction
11.13Mbps RU 50%CDF 9.16Mbps CDF RU SU MU DU 50%CDF kbps 9159 8594.4 6558.9 6106.5 Average(kbps) 7633.2 6930.5

46 Average throughput prediction
User profile Service Terminal Calls/hour UL Volume (KBytes) DL Volume FTP Download MIMO Terminal 1 1,000 4,000 Density (Subscribers/km2) 500 1000 1500 2000 2500 3000 Total number of connected users 94.8% 94.5% 93.7% 92.4% 92.3% 91.0%

47 Signal Level Coverage Prediction

48 FDD-LTE network planning flow

49 Other coverage prediction

50 Monte Carlo simulation

51 FDD-LTE network planning flow

52 Signal quality prediction

53 Throughput prediction

54 Other coverage prediction
Effective modulation Handover

55 FDD-LTE network planning flow

56 Contents FDD-LTE network deployment strategy FDD-LTE site selection
FDD-LTE network simulation FDD-LTE spectral efficiency

57 Evolution of Speed

58 LTE Frequency and Bandwidth
E-UTRAN Band UL: eNode B receive, UE transmit DL: eNode B transmit, UE receive Duplex Mode FUL_low – FUL_high FDL_low – FDL_high 1 1920 MHz – 1980 MHz 2110 MHz 2170 MHz FDD 2 1850 MHz 1910 MHz 1930 MHz 1990 MHz 3 1710 MHz 1785 MHz 1805 MHz 1880 MHz 4 1755 MHz 2155 MHz 5 824 MHz 849 MHz 869 MHz 894MHz 6 830 MHz 840 MHz 875 MHz 885 MHz 7 2500 MHz 2570 MHz 2620 MHz 2690 MHz 8 880 MHz 915 MHz 925 MHz 960 MHz 9 MHz MHz MHz MHz 10 1770 MHz 11 MHz MHz MHz MHz 12 [TBD] 13 777 MHz 787 MHz 746 MHz 756 MHz 14 788 MHz 798 MHz 758 MHz 768 MHz ... 33 1900 MHz TDD 34 2010 MHz 2025 MHz 35 1910 MHz 36 37 38 39 - 40 2300 MHz 2400 MHz

59 Flexible Bandwidth 1.4M 3M 5M 10M 15M 20M Unpaired-Spectrum

60 LTE Spectrum Defined by 3GPP

61 Different bandwidth and antenna, different speed

62 Spectrum efficiency A comparison between different bandwidth
Conclusion: It’s a little different between different

63 Spectrum efficiency A comparison between different MIMO mode
Conclusion: The spectrum efficiency will increase if antenna increases.

64 Spectrum efficiency A comparison between different frequency
Conclusion: The spectrum efficiency will be different in different frequency. With the increase of frequency, the spectrum efficiency decreases, especially when in a large scale difference.

65 FDD-LTE BBU Solution Product － B8200
Carrier Support 3*20MHz Baseband Capacity DL:450Mbps & UL:150Mbps Active Users Support 1200 Users/Sector Availability index ≥ % Interface 3xCPRI; 3xGE/FE 1xGPS; 8xE1/T1 Dimension (mm) 88.4(H)×482.6(W)×197 (D) Weight 7.48kg Max. Power Consumption 303W Max. Power Supply -48VDC Cooling Fan Cooling Working Temperature -15 ℃ ～+50℃ B8200 Compact, light-weight, easy installation Plug & play, easy maintenance Low, green equipment Automatically network planning and optimizing

66 FDD-LTE RRU Solution Product － R8882
Carrier & Sector 20MHz Frequency Bandwidth Availability % RF Output 2*40W Receive Sensitivity (dBm) -89.6 Interface 2 CPRI Ports and 4 Antenna Ports Dimension (mm) 380(H) x 320(W) x 140(D) Weight 18kg Power Consumption 330W Max; 197W AVG. Power Supply -48VDC Cooling Natural Cooling (No FAN) Working Temperature -40 ℃ ～+55℃ R8882 Compact, light-weight, easy installation Plug & play, easy maintenance Low TX power, green equipment Automatically network planning and optimizing

67 FDD-LTE eNB Solution Product － B8800
Carrier & Sector 3*20MHz RF Output 4*40W Receive Sensitivity (dBm) -89.6 Active Users Support 1600 Users/Sector Baseband Capacity DL:450Mbps & UL:150Mbps Availability % Backhaul Interface 3xGE/FE; 8xE1/T1 Dimension (mm) 950(H) × 600(W) × 450(D) Weight <150kg Power Consumption 994W Avg. with S111(3*20MHz) Power Supply -48VDC; 110~220VAC;+24VDC Cooling Fan Cooling Working Temperature -15 ℃ ～+50℃ BS8800 Large Capacity Rich Interface Higher Efficiency, Lower Power Consumption Automatically network planning and optimizing

68 FDD-LTE eNB Solution Product － B8900
Carrier & Sector 3*20MHz RF Output 4*40W Receive Sensitivity (dBm) -89.6 Active Users Support 1600 Users/Sector Baseband Capacity DL:450Mbps & UL:150Mbps Availability % Backhaul Interface 3xGE/FE; 8xE1/T1 Dimension (mm) 1700(H)×950(D)×600(W) Weight Full configuration without battery: 355Kg Power Consumption 1105W Avg. with S111(3*20MHz) Power Supply -48VDC; 110~220VAC;+24VDC Conditioner Heat Exchanger Working Temperature -40 ℃ ～+55℃ BS8900 Compact, light-weight, easy installation Plug & play, easy maintenance Low TX power, green equipment Automatically network planning and optimizing

69 Glossary CBD: Central Business District QOS: Quality of Service
RAB: Radio Access Bearer CW: Continuous Wave POI: Point of Interest RNP: Radio Network Planning DU: Dense urban SU: Suburbs urban RU: Rural urban MU: Medium urban SE: Spectrum Efficiency ESE: Effective Spectrum Efficiency ISD: Inter-station Distance CPRI: Common Public Radio Interface QPSK: Quaternary Phase Shift Keying QAM: Quadrature Amplitude Modulation CDF: Cumulated Distribution Function

70

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