Author/ Email: w00311969/ edward. edward.wugang@h
[email protected] uawei.com om Version: Vers ion: V1.0(2015/3/2) V1.0(2015/3/2)
RET System Challenges with Multi-band Antenna Deployment Multi-band Antenna is The Trend
Electrical Tilt Problems of Antenna Deployment
1
Difficult site visit •
Difficult site visit and low timeliness of MET(Manual
Electrical Tilt)
2
Low reliability •
Manual mistakes and corrosion risks caused by complex
traditional RET system
3
Low efficiency
Source: ABI Research@2013 •
Traditional RET system installation and configuration
consume amounts of time
Potential Failure Points of external RET Antenna failure RCU installation RCU configuration AISG cable AISG connector
90% failure due to external RET components 1%
9%
Hardware quality problem
Other
15% RET configuration problem
RCU connector
45% Daisy chain cable problem
20% RET installation problem
10% RET components missing Source: Huawei’s statistical data from Europe
165mins
per site to deploy traditional RET
system and prevent fast antenna deployment
Many Connection Points •
The installation complexity complexity of RET
system increases due to more connection points
Difficult Installation •
The space of antenna bottom cover
limited for multi-band antenna, and it is difficult to install RCUs and cables
Manual RET Configuration •
Record RCU S/N for each sector
•
Configuration Configuration data uploading
•
Calibration electrical tilt
Requirements
The Trend of Antenna Industry
Integrated RET: •
Less complexity
•
Easier deployment
Huawei
Traditional RET
EasyRET1.0
EasyRET2.0
AIMM* •
External RCUs and AISG cables
Year 2009
•
Embedded RET components
•
RET module pluggable and replaceable
•
Pre-configured and calibration-free
•
Add readable indicators
Year 2013 * Antenna Information Management Module
Year 2014
Tri-band Traditional RET
Item
Tri-band EasyRET
3
AISG cable
1
3
External RCU
0
3
RCU connector
0
6
AISG connector
2
Embedded RET solution reduces antenna system complexity
Installation Optimization
O&M Optimization
•
Reduce RCU, AISG cable installation
•
No RCU configuratio configuration n data upload
•
No need to write down RCU serial No
•
Calibration-free Calibratio n-free design
•
Save >45mins/site installatio installation n time
•
Save >20mins/site configuratio configuration n time
High Reliability •
reduces complexity of antenna system with low failure rate
•
Failure rate 3 times lower
Installation Steps with EasyRET
1
Greatly Improve Installation Efficiency save
45mins/site
120
2 75
3 4 5
RET antenna installation working hours per site Traditional RET
EasyRET
Configuration Steps with EasyRET
Greatly Improve Configuration Efficiency save
1
20mins/site
45
2 3
25 RET antenna configuration working hours per site Traditional RET
4 5
EasyRET
•
No need to record RCU serial No.
•
No RCU configurati configuration on data upload
•
Calibration-free design
Simple Configuration for Two Operators Sharing RET Management Typical Antenna Sharing Scenario
Vendor A/ Vendor A/ Operator A
Vendor B/ Operator B
•
Two pairs of AISG interfaces support two operators
•
Control independently by two operators
STEP 1: RET port unconfigured
STEP 2: Operator A configures the assigned RET port, Operator B can only configure the unassigned RET port Operator A
Operator B
•
Complex connection
•
Reduces connection points, Reduce manual
installation mistake
of traditional RET
•
antenna
Configuration-free and calibration-free,
Avoid manual configuration mistake
EasyRET •
External RCU rust and oxidation in the harsh environment
Traditional Tr aditional RET
•
Corrosion risk
Reduce Failure rate 3 times
RET components no need waterproof treatment
•
Built-in reduce corrosion risk
EasyRET
3 Electrical Tilt Adjustment On-site by PCU
1 Indicator Readable with EasyRET Antenna •
Indicator protection protection design, and
AISG cable
electricall tilt can be read on both sides electrica •
of indicator
Connect PCU to EasyRET antenna’ antenna’ss
AISG interface and using PCU to set the electrical tilt
2
Remote RET Port Identification by Color Coding
•
or USB/RS485 adaptor
•
The Color Coding technology for operator remote O&M
•
Different RET ports are marked by various colors according to AISG
standard EasyRET S/N: 2
3
PCU
1
4
1
HWMxxx…...r HWMxxx …...r
2
….bL HWMxxx…. HWMxxx bL
3
….yL HWMxxx…. HWMxxx yL
4
HWMxxx...yyR
r - Red b - Blue y - Yellow L - Left array R - Right array
PCU can be used as RCU controller
bL yL
yyR
r
PCU application diagram
EasyRET Antenna Pluggable and Replaceable AIMM
Introduction of AIMM AIMM20S11
AIMM •
AIMM: the EasyRET antenna information management module, supports remote electrical tilt function and manages antenna information
•
Spare parts of single band EasyRET antenna
•
One group of AISG interface
AIMM20D11 •
Spare parts of dual band EasyRET antenna
•
One group of AISG interface
AIMM20D22 (Customized for co-RET management) •
MET2.0 Upgrade to EasyRET2.0
Customized AIMM for sharing scenario of dual band
EasyRET antenna •
Two group of AISG interface
AIMM20M11 •
Spare parts of triple band EasyRET antenna
•
One group of AISG interfaces
AIMM20M22
Remove MET Module
Install EasyRET Module
•
Spare parts of quad to hexa band EasyRET antenna
•
Two group of AISG interface
700/800/900
800/900 Dual Low-band
700/850 Dual Low-band
1800/AWS/2600
Capacity Solution
690-960/ 1710-2690MHz
790-862/880-960MHz
690-803/824-960MHz
2*1710-2690MHz
1710-2690MHz
690-960/ 2*1710-2690MHz
790-862/880960/ 1710-2690MHz
Dual-beam for 6 sector
690-803/824-960/ 1710-2690MHz
3*1710-2690MHz 790-960/17102200MHz
690-960/ 3*1710-2690MHz
1.8/2.1G dual-beam 790-862/880-960/ 1710-2170/24902690/1710-2690MHz
690-803/824-960/ 2*1710-2690MHz
2*1710-2170/2*24902690MHz
for 6 sector
Vendor/ Vendor/ operator
Vendor1/ Vendor1/ operator1
•
Downtilts can be controlled by MAX. 3 operators or BTS vendors
•
Operators manage RET system independently when sharing antenna
Vendor2/ Vendor2/ operator2 REU
Vendor1/ Vendor1/ operator1 Two pairs of AISG interfaces support two operator/vendor
Vendor2/ Vendor2/ operator2
Vendor3/ Vendor3/ operator3 REU (RET Expansion Unit) support MAX 3 operator/vendor
Comprehensive Comprehe nsive compatibility •
Antenna port and BTS ports all fully compliant with AISG 2.0/3GPP
•
Compatible with Huawei and 3rd party antennas which comply with AISG 2.0/3GPP
Fully remote configuration and O&M •
One step configuration with OMC remotely
•
No need configuratio configuration n on-site
REU
Better environmental adaptability •
With ingress protection class IP65
•
Applicable for indoor or outdoor, mounting with tower, pole or wall
Scenario 1:RRU on top of tower (distance between RRU and antenna ＜5m)
Scenario 2:RRU in bottom of tower (distance between RRU and antenna<20m)
2m AISG cable
15m AISG cable
5m AISG cable
5m AISG cable
Scenario 3: Macro Station/RRU+SBT (distance between RRU and antenna>20m)
SBT
SBT
Scenario 4:Macro Station/RRU+STMA (distance between RRU and antenna>20m)
2m AISG cable 2m AISG cable 0.5m AISG cable STMA
STMA
Only one AISG cable connection
•
EasyRET simplify RET installation and AISG connection, installation time saved 40% per site
•
Automatic S/N identification, no need to copy on site
•
Only one AISG cable connection, enhance connection reliability
Downtilt operating interface
EasyRET Solution
•
EasyRET solution support separate RET antenna O&M for two operators
•
Only one penta-band antenna support two operators antenna sharing, saving site resource extremely
1 Antenna/sector Antenna/sector
2 Antenna/sector Antenna/sector L800 Operator TM Operator T
√
GU900
GL1800
U2100
√
√
√
FDD L2600
TDD L2600
√ √
Tri-band Antenna
3*1710-2690MHz
OR
Penta-band antenna 790-862/880-960/
Dual band Antenna 800/900 MHz
1710-2690/1710-2170/ 2490-2690MHz
