Download - WaveIN introduction
Jay Huang December 2015
LTE In-building Deployment Case Study- for iBwave Seminar Taipei Section
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
Why Indoor Coverage is Essential for LTE Deployment?
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
3235pt G0 B0 e Font : edium ers and rtners : Arial
2022pt vel 25: 18pt r:Black e Font : edium ers and rtners : Arial
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
3235pt G0 B0 e Font : edium ers and rtners : Arial
2022pt vel 25: 18pt r:Black e Font : edium ers and rtners : Arial
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
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
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
3 Case Study for LTE In-building Deployment
Indoor Opportunities
Case study today
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.
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
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
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)
RAU Installation
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
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
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
RAU Installation Inside Carrefour • Install two RAU inside Carrefour as figure shown.
Antenna
Antenna
RAU
Test Result Under 2 Carrefour Antenna
Antenna 1: P22Test on Oct 25 2015 AM
Antenna 2: P16 Test on Oct 25 2015 AM
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
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
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)
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
Site Installation - HEU
FET L700 RRH
1:20 coupler
FET L1800 RRH
Wave-In 700 & 1800 HEU
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
Wave-In SDAS Web GUI 700MHz
Fiber loss 0.8 dB
BTS input 25dBm after 20 dB coupler (TX~ 46dBm)
RAU TX 21 dBm
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
• SDAS is a good solution for HSR station, tunnel and MRT underground coverage.
Case 3: HSR Coverage
• 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
• 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
• 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
Wave-In HEU Installation
FET 1800MHz RRHCHT 1800MHz RRH
Wave-In HEU for FET Wave-In HEU for CHT
Wave-In RAU & Antenna Installation
Wave-In outdoor type HEU for FETWave-In HEU for CHT
Antenna for CHT Antenna for FET
Wave-In SDAS Web GUI
large fiber loss 2.7dB ==> need to revisit the site
RAU output power 21 dBm
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
Wave-In Comm. Slim DAS Solution
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
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
Slim DAS System Configuration
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.
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
Daisy & Hybrid Topology • Daisy and hybrid topology give you the most flexible
configuration compare the other star topology active DAS.
Layout change
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
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
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).
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
NCC TA
How to choose cost-effective solution for your indoor
environment?
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
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
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
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.