wavein introduction
TRANSCRIPT
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Jay Huang December 2015
LTE In-building Deployment Case Study- for iBwave Seminar Taipei Section
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Outline• Why indoor coverage is essential for LTE deployment?• 3 cases study for LTE in-building deployment • Wave-In SDAS solution highlight• How to choose cost-effective solution for for your indoor
environment? • Benefit of using iBwave for in-building solution deployment
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Why Indoor Coverage is Essential for LTE Deployment?
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Analysis report indicates …indoor dominate data usage
• Analysis report indicated more than 80 percent of data happened at indoor environment.
In-building service become key differentiate point for LTE operator
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Unbalanced Network Load Drives Small Cell Need HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4
Unbalanced load needs accurate deployment Macro overdensified area Downtown Street
Tokyo Area
Outdoor Indoor Shopping Mall
Indoor Outdoor
Voice Service
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Unbalanced Network Load Drives Small Cell Need HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 4
Unbalanced load needs accurate deployment Macro overdensified area Downtown Street
Tokyo Area
Outdoor Indoor Shopping Mall
Indoor Outdoor
Voice Service
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Video dominates mobile data service
20192010 20132011 2012 2014 2015 2016 2017 2018
Mobile data traffic by application type (monthly ExaBytes)
20
18
16
14
12
10
8
6
4
2
0
File sharing
Video
Audio
Web browsing
Social networking
Software download and update
Other encrypted
Other
Segment
2 Source: Ericsson Consumer Lab (2013)
13xgrowth in mobile video traffic between 2013 and 2019
Two key environment for video APP: Transportation
and in-building venue
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Is your indoor meet video APP requirement?
How to resolve the challenge for LTE in-building design? How to enlarge the video
APP coverage (16QAM+64QAM) +MIMO to satisfy customer need?
QPSK
16QAM 64QAM
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3 Case Study for LTE In-building Deployment
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Indoor Opportunities
Case study today
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Case 1: Cipinang Indah Mall Indonesia• iBwave Simulation assumption
• Coverage Scale : CIPINANG Indah Mall LG floor, 150m x 110m, total 16500m^2.
• In-building design:• Passive SISO is designed by SI (Winet); Passive MIMO is simulated by Wave-In• Active MIMO is designed by Wave-In (1.8GHz & 2.3GHz)
• Note that simulation result might have offset due to limited interior material info. ; however, the results are good enough for performance comparison.
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Indoor Design Architecture
RF
LGFloor
Passive DAS System architecture (SISO)- Enable MIMO support, need to double cabling & antenna
Active Slim DAS System architecture (MIMO support)
fiber
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Simulation ResultPassiveDAS–Avg.RSRP-81.6dBm ActiveSlimDASLTEFDD1.8Ghz
–Avg.RSRP-78.5dBm
RSRPsimulationresult–LTETDD-2.3GHzActiveS-DAS–Avg.RSRP-82.4dBm
RSRPsimulationresult–LTETDD-2.3GHzActiveS-DAS–Avg.RSRP-80.9dBm
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HEU Installation
RF cable connect to Hauwei RRH
Wave-In HEU
Terminator 20dB coupler
RF cable to HEU
HEU connect to Hauwei RRH through 20 dB coupler because this trial is temporary site; RRH output is 43dBm (20W) but Wave-In HEU input signal spec. can up to 30dBm;
Suggest adjust RRH output to 25-30dBm for permanent install and direct connect to HEU to avoid 20dB link budget loss on DL/UL for higher performance (affect SINR)
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RAU Installation
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SDAS Status Web GUI
UL gain set 6dB to compensate 20dB coupler loss
Clean fiber connect reduce fiber loss
RAU output adjust from 20 to 21; UL gain 6 dB
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Baseline Test : Passive DAS• Test date: Oct 19 PM 11:00 - 12:00 (No traffic condition)• Test Environment: CIPINANG INDAH MALL• Test Equipment: Samsung J5 + Speed test APP + G-Track APP• Test Point: As above figure shown
Oct 19 2015 Speed test plus Q-track (Passive baseline 9:30 - 10:30
DL Tput Mbps UL Tput Mbps PING ms RSRP SINR RSRQ
P1 52.87 9.85 17 -68 28.6 -7
P2 12.98 5.98 16 -86 6 -11
P3 25.95 9.12 14 -82 7 -9
P4 22.09 8.97 19 -78 20.6 -8
P5 28.22 9.51 17 -80 18.4 -7
P6 40.78 9.26 18 -80 22 -7
P7 46.16 9.37 16 -77 19.4 -7
P8 42.75 5.81 14 -80 21.8 -7
P9 52.86 9.17 14 -80 24.4 -7
P10 51.37 7.89 16 -85 23.2 -7
P11 39.84 6.04 15 -88 15.8 -7
P12 27.17 6.39 16 -87 13.6 -7
P13 27.76 7.13 18 -87 14 -9
P14 49.54 9.45 18 -83 19 -7
P15 52.95 9.61 15 -71 30 -7
P18 52.87 9.25 14 -75 30 -6
P19 52.78 8.87 14 -77 30 -6
Average 39.94 8.33 15.94 -80.24 20.22 -7.41
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Wave-In SDAS Performance Test
No Carrefour area test data due to site access issue in the midnightBecause of MIMO, SDAS DL performance ~ 60Mbps compared to passive SISO ~39Mbps
UL performance degradation because of 20dB link budget loss for coupler.
Oct 21 2015 Speed test plus Q-track (Wave-In + external antenna + PA adjustment ) 11 pm
DL Tput Mbps UL Tput Mbps PING ms RSRP SINR RSRQ Comment
P1 72.6 4.51 18 -77 17 -7
P2 33.66 6.97 17 -79 17.2 -8
P3 30.2 5.94 16 -76 8 -8
P4 30.69 5.98 18 -80 12.7 -7
P5 38.55 6.04 15 -79 13.8 -8
P6 48.18 6.02 19 -73 15.1 -7
P7 61.65 4.7 18 -74 19 -6
P8 67.26 6.28 16 -77 17.2 -7
P9 74.23 6.5 19 -68 20.6 -7
P10 78.26 5.9 21 -75 18.4 -7
P11 76.64 8.21 18 -76 21 -7
P12 80.38 8.43 17 -71 24.8 -6
P13 78.33 6.19 18 -77 19 -6
P14 75.35 8.89 17 -67 22 -7
Average 60.43 6.47 17.64 -74.93 17.56 -7.00
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RAU Installation Inside Carrefour • Install two RAU inside Carrefour as figure shown.
Antenna
Antenna
RAU
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Test Result Under 2 Carrefour Antenna
Antenna 1: P22Test on Oct 25 2015 AM
Antenna 2: P16 Test on Oct 25 2015 AM
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Simulation vs Actual MeasurementRSRPsimulationresult–LTETDD-2.3GHzActiveS-DAS–Avg.RSRP-80.9dBm
RSRPActualMeasurement–LTETDD-2.3GHzActiveS-DAS–Avg.RSRP-78.17dBm
Cross check between simulation vs actual measurement indicated our simulation result approach 90% of accuracy within 3dB
In addition, our SDAS performance outperform simulation tool expectation which is the indication of high quality active DAS system
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Comparison for Passive & Active DASTraditional Passive SISO DAS Wave-In S-DAS
Schedule M day 1/2 M day (estimated by project team)
Construction plus material cost N <N (estimated by BOM study)
Supported BTS Macro Macro/pico/femto
Performance
SISO only; Voice oriented designDegrade gradually in upper floor
Data oriented design (MIMO)>1.5 times performance ratio compare
with passive SISO DAS
FeaturesE2E monitoring
Environment sensingAuto-optics/RF calibration
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Case 2: Retail Store Enable CA • CarrierAggregationisakeyfeatureforiPhone6Sandotherhigh-endsmart
phone.• InsteadofallocatetwoRRH(700MHz+1800MHz)intoretailstoretoenable
CAfeature;usingSDASsolutionconnectoutdoorsitenearbyisacosteffectivesolution.
Lab test indicated that SDAS can help carrier enable CA with cost effective way (20Mbps
+15Mbps)
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Site Configuration
LTE-700M
RAU700M
LTE-1.8G
OutdoorAntenna
1:20directionalcoupler
FET Tainan Retail
HEUFD1.8GHEUFD700M
RAU1.8G
Use SDAS RAU as a PA to push passive DAS designHEULocated with outdoor RRH
1/2inchcoaxialcableFiber
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Site Installation - HEU
FET L700 RRH
1:20 coupler
FET L1800 RRH
Wave-In 700 & 1800 HEU
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Site Installation - RAUFiber out to RAU1800MHz
Fiber out to RAU 700Mhz
Disconnect L1800 RRH
Disconnect L700 RRH
Wave-In1800RAU Wave-In
700RAU
Passive Antenna Combiner
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Wave-In SDAS Web GUI 700MHz
Fiber loss 0.8 dB
BTS input 25dBm after 20 dB coupler (TX~ 46dBm)
RAU TX 21 dBm
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Trial Test Result (700MHz/1800MHz)
b.Retail store
a.Office
RAU installation area
10MHz+10MHz CA spectrum means spectrum efficiency ~ 5 bps/Hz; Test results showed SDAS can enable DL/UL CA in operator retail store to provide cost-effective solution
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• SDAS is a good solution for HSR station, tunnel and MRT underground coverage.
Case 3: HSR Coverage
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• Design Criteria: • BBU and RRH located in Building 1, use Wave-In SDAS to extend
LTE signal into train tunnel.• Need to carry FET and CHT 1800MHz LTE signal• RAU need outdoor type
HSR Taoyuan Station Coverage
BBU, RRU and Wave-In HEU
Underground tunnel
FiberWave-In RAU
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• Coverage area from TK041+900 ~ TK044+340 • About 2km 440 tunnel use 5 RAU to cover • Need to consider train speed for no stop (~200Km/Hr) and stop service.• KPI: 95% RSRP>95dBm; peak data rate spectrum efficiency >3.5
HSR Taoyuan Station Coverage
TK041+280 TK045+249TK042+285
Taiyuan HSR Station
8.桃園車站隧道&引道 892 & 2269 TK041+172~042+064 &TK042+506~044+775
:3.6km
N S
TK045+249Handoverregion
TK043+500
TK043+000
TK042+100
TK041+900
B202
B236
1
2
3
5
TK044+340
4
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• For performance consideration, assume non stop train speed >200Km/Hr, Wave-In design 1HEU to 2RAU in this case for better link budget margin.
• Even though, Wave-In SDAS can relay two operator signal using one set of equipment, due to operator consideration on equipment property right, Wave-In design a system diagram as following:
HSR Taoyuan Station SDAS Design
HEU#1
HEU#2
HEU#4
HEU#5
OMC
CHTBBU+RRH
FETBBU+RRH
2
1
3
5 4
FETCHT
10m 3m3m
FETCHT
10m 3m3m
FETCHT
10m 3m3m
FETCHT
10m 3m3m
FETCHT
10m 3m3m
N S
HEU#3
HEU#6
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Wave-In HEU Installation
FET 1800MHz RRHCHT 1800MHz RRH
Wave-In HEU for FET Wave-In HEU for CHT
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Wave-In RAU & Antenna Installation
Wave-In outdoor type HEU for FETWave-In HEU for CHT
Antenna for CHT Antenna for FET
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Wave-In SDAS Web GUI
large fiber loss 2.7dB ==> need to revisit the site
RAU output power 21 dBm
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Performance Snapshot (FET)
TK043+500
TK043+000
TK042+100
TK041+900
B202
B236
1
2
3
5
TK044+340
4
P1-TK041+900
P2-東正線北側逃生梯
口(B202前)P3-TK043+000直達
車道旁P4-TK044+230 P5-TK043+300
DL UL DL UL DL UL DL UL DL ULRSSI -53.9 -52.9 -44.1 -46.7 -43.5 -42.8 -44 -47.8 -50 -48.5RSRP -82.6 -77.5 -73.9 -70.4 -73.2 -66.5 -74 -71.5 -78.3 -72.4RSRQ -11.7 -7.7 -12.8 -6.73 -12.6 -6.74 -12 -6.75 -11.4 -7DLT-put 32.9 41.6 48.7 57.1 44
ULT-put 18.4 21.5 17.3 18.7 18.4
P1
P2
P3
P4P5
Speed test result and optimization under process
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Wave-In Comm. Slim DAS Solution
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FDD Slim DAS Spec. (Indoor) HEU (Head End Unit)
Dimensions (L x W x H mm ) (218 x 160 x 42 )
Operating Temp Range 0oC to +45oC
Power Input POE:48V/1A max.
RF Input Interface N Type Female x 2
RF Input Power 10~32dBm
Input Return Loss Min. 14dB
Optical Interface SC/APC x 2
No. RAUs/ Link Max. 3
RAU (Remote Antenna Unit)
Dimensions (L x W x H mm ) (230 x 142.x 80)
Operating Temp Range 0oC to +45oC
Power Input POE: 48V/1A max
Optical Interface SC/APC x 2
External Antenna (Optional) SMA Female x 2
RF Return Loss 10dB typical
Downlink Output Power (MIMO) ~ 21 dBm (64QAM ;3%<EVM)
Antenna Gain (option) 4 dBi
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FDD Slim DAS Spec. (Outdoor) HEU (Head End Unit)
Dimensions (L x W x H mm ) (218 x 160 x 42)
Operating Temp Range 0oC to +45oC
Power Input POE:48V/1A max.
RF Input Interface N Type Female x 2
RF Input Power 10~32dBm
Input Return Loss Min. 14dB
Optical Interface SC/APC x 2
No. RAUs/ Link Max. 3
RAU (Remote Antenna Unit)
Dimensions (L x W x H mm ) (240 x 240 x 7)
Operating Temp Range 0oC to +55oC
Power Input POE: 48V/1A max
Optical Interface LC/APC x 1
External Antenna SMA Female x 2
RF Return Loss 10dB typical
Downlink Output Power (MIMO) ~ 23 dBm (64QAM ;3%<EVM)
Antenna gain (optional) 12 dBi
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Slim DAS System Configuration
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Source/Technology Independent • Source vendor independent.• Technology Independent: For example Band 3 DAS support
LTE & GSM; Band 1 DAS support WCDMA & LTE. • Macro/Pico/Femto dynamic input range support (10dBm
~30dBm). • Output power adjustable and end node extension support.
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Single Fiber for MIMO • Different than other active DAS, we design single fiber to
support MIMO and DL/UL both on FDD and TDD model.• In old building like below, pipe are small and lack of space,
you can use 1/2” pipe to deploy Wave-In Solution
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Daisy & Hybrid Topology • Daisy and hybrid topology give you the most flexible
configuration compare the other star topology active DAS.
Layout change
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Auto-Optics/RF Calibration • Auto-Optics/RF calibration feature fine tune fiber and RF link
budget to facilitate fiber lose check when initial setting or configuration change.
• Easy for initial setting, re-configuration and monitoring; note that during auto-calibration process, the system also detect and report fiber loss value.
Auto Calibration Process
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Environment Sensing • UL band environment sensing help in-band and adjacent-band
NI scan to guarantee end user QoE. • Periodic or by commend reporting.
Co-channel
Adjacent channel
Jamming
Background noise
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Single Band Multi Carrier Support • Co-Construction capability:
• Wave-In DAS system can support up to 4 multi-carrier simultaneously.
• Note that RAU TX power will evenly split; for example 3 operator each operator RAU TX become 23dBm -4.7dB ~18.3dBm (64QAM MIMO <3% EVM).
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Wave-In SDAS Solution Key Differentiated Point
1. Single fiber support for MIMO. 2. Daisy chain & hybrid topology for deployment flexibility. 3. Auto-Optics/RF calibration for easy installation (A). 4. Environment sensing for troubleshooting and monitoring (B). 5. Single-band multi-operator support for co-construction (C).
!
!
!
A B C
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NCC TA
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How to choose cost-effective solution for your indoor
environment?
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LTE Possible In-building Solution
Small cell for Indoor
Backhaul,InterferenceandHENETintegrationissues
ExpensiveOPEXintermsofbackhaulandHENETintegration
Repeater for Indoor PoorperformanceoninterferenceandMIMOsupportissues
Passive Distributed
Antenna System DAS
Performancedependsoncabling(EspeciallyUL)
PoorperformanceonMIMOsupportissues
Noactivemonitorsystem
ActiveE2Emonitorsystemsupport
EvenlydistributedperformanceandoptimizedforMIMO
Active Distributed
Antenna System DAS
CostEffectiveOPEX&CAPEX
Active DAS solution play an important role for LTE in building deployment
Vendor BBU+RRU+DAS RFoverCAT5/6limitdistanceandMIMOperformance
ExpensiveOPEXandCAPEX
Vendor&technologydependenttechnology
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Indoor Deployment Consideration for LTE
Solution
WiFi
Capacity?
Coverage?
Capacity+ Coverage?
Small Cell
RRH+DAS
Repeater
DAS
Multi-system?
Yes
No
Multi-hole?
1:1
1:M
Small Cell+DAS
Business District
ResidentialArea
Radio DOT
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Indoor Deployment ConsiderationSmall cell? Passive DAS? Active DAS?
Small Cells and Distributed Antenna SystemsALCATEL-LUCENT WHITE PAPER
7
The following table provides a guide as to technology fit and use.
Table 2. Guide to DAS and small cells fit
SMALL TO MEDIUM FLOOR BUILDING (RESTAURANT, SHOP)
LARGE SINGLE FLOOR BUILDING (FACTORY)
2-5 FLOOR BUILDING
5-10 FLOOR BUILDING
10-20 FLOOR BUILDING
OVER 20-FLOOR BUILDING
AIRPORT, SHOPPING MALLS
Indoor small cell 1 1 to 2 2 to 4 per floor depending on storey size, morphology and capacity
Node B with DAS Not cost effective
Not cost effective
1 Sector 1-2 Sectors 2-4 Sectors >4 Sectors >4 Sectors
RRH with DAS Not cost effective
Not cost effective
1 RRU 1-2 RRU (*) 2-4 RRU (*) >4 RRU (*) >4 RRU (*)
RF repeater with DAS If low traffic Insufficient capacity If low traffic
DAS type Small to medium area or 1-5 floors: Passive DASLarge area and more than 5 floors: Active DAS
• By ALU small cell vs DAS white paper TOC analysis, here is the capacity & coverage guideline to choose solution.
• Single floor environment : small cell (<1000m^2)• 2-6 floor building: RRH + passive DAS (<3000 m^2)• 6-15 floor building: RRH + active DAS (<10000m^2)• >15 floor building or airport shopping mall: n* Node B + active DAS
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Benefit of using iBwave • LTE indoor deployment strategy need to consider a lot of factor
• MIMO zone• APP coverage• CA coverage • …
• Plus a lot of indoor solution suitable for different environment• A planning & simulation tool like iBwave can facilitate IBS project work. • iBwave did help Wave-In on following aspects
• Support varieties of IBS solution simulation for TCO evaluation on pre-sales stage.
• Accurate design and simulation before installation. • Accurate material BOM for project preparation. • Trouble shoot tool for RF performance guidance & project acceptance.