RRU3804&RRU3801E&RRU3806 Installation Guide(V200_08)
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Transcript of RRU3804&RRU3801E&RRU3806 Installation Guide(V200_08)
HUAWEI TECHNOLOGIES Co., Ltd.
Issue: 08Date: 2010-07-15
RRU3804&RRU3801E&RRU3806 V200
Installation Guide
1
Installation Tools ………………………………………………………
Installation Modes ………………………………………………………
Space Requirements ……………………………………………………
Requirements for Installation Support Structure …………………
Installation Procedure …………………………………………………
Preparing for the Installation …………………………………………
Installing the RRU on a Metal Pole …………………………………
Installing the RRU on a U-Steel ………………………………………
Installing the RRU on an Angle Steel ………………………………
Installing the RRU on a Wall …………………………………………
Installing the Cables of the RRU ……………………………………
Checking the RRU Hardware Installation …………………………
Powering On the RRU…………………………………………………
Appendix ………………………………………………………………
Change History …………………………………...…………………..
Contents
Copyright © Huawei Technologies Co., Ltd. 2010. All rights reserved.
2
3
4
6
7
7
8
12
12
13
16
29
30
31
36
2
Installation Tools
5mm
M3~M6
Multimeter
Guarded blade utility knife
Hammer drill (with bit 14) Vacuum cleaner
Rubber hammer
ESD gloves
Heat gunFlat-head screwdriver
(M3~M6)
Wire stripper
Wire cutterAdjustable wrench
(with the diameter of at least 32 mm)
Measuring tape
Level
Marking pen
(with the diameter of no more than 10 mm)
Combination wrench(21mm~21mm) for pole installation
(17mm~17mm) for wall installation
Phillips screwdriver
(M3~M6)
Torque wrench
Crimping pliers
Torque screwdriver
3
Installation Modes
On a metal pole (three centralized RRUs)
On a metal pole (in ordinary Mode)
On a metal pole (inreverse mode)
On a metal pole (in back-to-back mode)
On a metal pole (four centralized RRUs)
On a metal pole (six centralized RRUs)
On a U-steel On an angle steel On a wall
4
Dimensions and Installation Clearance
≥300 mm
≥500 mm
≥800 mm≥600 mm
≥300 mm
a
285 mm 170 mm
485 mm
Dimensions of the RRU b Recommended Clearance for a Single RRU
c Minimum Clearance for a Single RRU
The minimum installation clearance meets the requirements of the equipment for normal running and heat dissipation, but does not meet the requirements for Operation and Maintenance (OM) such as checking the status of the LEDs and opening the maintenance cavity. When the installation space is restricted, the minimum installation clearance can be adopted.
The recommended installation clearance meets the requirements of the equipment for normal running and OM. When the installation space is sufficient, the recommended installation clearance can be adopted.
d Minimum clearance for the RRU installed on a tower
200 mm
300 mm
400 mm
100 mm
600 mm
400 mm100 mm
600 mm
Top view
200 mm
300 mm
280 mm 400 mm
400 mm 280 mm
280 mm
Auxiliary metal pole
Main metal pole
Side viewTop view
Main metal pole
Auxiliary metal pole
5
≥300 mm ≥600 mm ≥600 mm 100 mm 400 mm 400 mm
≥500 mm
≥500 mm
≥300 mm
300 mm
300 mm
200 mm
Dimensions and Installation Clearance
g hRecommended Horizontal Spacing for Two RRUs Installed in Parallel
Minimum Horizontal Spacing for Two RRUs Installed in Parallel
i jRecommended Vertical Spacing for Two RRUs Installed in Parallel
Minimum Vertical Spacing for Two RRUs Installed in Parallel
300 mm
200 mm
600 mm
300 mm
300 mm≥300 mm
≥800 mm
≥500 mm
≥500 mm
≥500 mm
e Recommended Clearance for Multiple Centralized RRUs f Minimum Clearance for Multiple
Centralized RRUs
300 mm
300 mm
600 mm
Top view
6
Requirements for Installation Support Structure
When the RRU is installed on a wall, the requirements are as follows:
For one RRU, the wall has a weight-bearing capacity of 68 kg.
The fastening torque of the expansion bolt reaches 30 N·m, the expansion bolt works properly, and no damages such as cracks are on the wall.
60 mm to 114 mm
63mm
~
80mm
63 mm to 80 mm63
mm
to 8
0 m
m50 mm to 100 mm
30 m
m to
50
mm
The following figure describes the specifications for the metal pole, angle steel, and U-steel where the RRU is installed.
Metal pole Angle steel U-steel
A maximum of two RRUs can be installed on a metal pole with a diameter of 60 mm to 75 mm, and the installation mode must be standard mode. Three or more RRUs must be installed on a metal pole with a diameter of 76 mm to 114 mm in a centralized way.
It is recommended that only one RRU be installed on a U-steel or an angle steel.When installed on a tower, one RRU can be installed only in standard mode or reverse mode rather than
side-mounted. Two RRUs cannot be installed in back-to-back mode.
≤10°
RRU
Angle steel
or U-steel
The brackets cannot be combined when the RRUsare installed on the wall.
The angle between the vertical and the angle steel or U-steel or angle steel where the RRU is installed must be less than or equal to 10 degree.
7
Installation Procedure
Preparing for the Installation
Dual-nut bolt
Main bracket
Auxiliary bracket Cover plate Attachment plate
Main and auxiliary brackets for the RRU Front Back
8
1200 mm~1600 mm
40N•m
When installing the main bracket, ensure that the contact piece on the bracket is fixed.
You may fit one end of the auxiliary bracket on one dual-nut bolt assembly and then the other end on the other dual-nut bolt assembly during the installation.
Fasten the two dual-nut bolt assemblies alternatively. After the brackets are secure, use a tape to measure the spacing between the main bracket and the auxiliary bracket at the two sides and ensure that the spacing is the same.
The weight-bearing capacity of the RF ports at the bottom of the RRU is low. Do not place the RRU at its bottom.
During the operation, place the foam pad or cardboard under the RRU to prevent any damage to the housing of the RRU.
2. Use an adjustable wrench to tighten the nut until the fastening torque is 40 N·m. In this way, the main and auxiliary brackets are secured on the pole.
1. Install the main bracket.
Installing the RRU on a Metal Polea Installing a Single RRU on a Metal Pole
3. Install the RRU on the main bracket. When you hear click sound, you can infer that the RRU is in position.
9
5N•m
M6X16
Cabling cavity
In standard mode
In reverse mode
Installing the RRU on a Metal Pole
Installing Two RRUs Back-To-Back on a Metal Poleb
4. Install the second RRU on the main bracket.
3. Reinstall the attachment plate and cover plate on the second RRU by interchanging their positions.
1. Install an RRU. For details, see page 8 Installing a Single RRU on a Metal Pole.
2. Install the main fixture for another RRU.
Ensure that the cabling cavities of the two RRUs face the same direction when installing the RRUs.
10
5N•m
M6X16
Installing the RRU on a Metal Pole
Installing Multiple RRUs in Centralized Modec
2. Relocate the attachment plate.
1. Install the main fixture and the auxiliary fixture. For details, see page 8 Installing a Single RRU in Ordinary Mode.
4. Install the second main fixture.3. Fit the tabs on the attachment plate of theRRU into the anchor slots on the main fixture.
5. Fit the tabs on the attachment plate ofthe second RRU into the anchor slots onthe second main fixture.
6. Install the third RRU.
11
7. Install the fourth main fixture. 8. Fit the tabs on the attachment plate ofthe fourth RRU into the anchor slots onthe fourth main fixture.
Installing the RRU on a Metal Pole
Installing Multiple RRUs in Centralized Modec
9. Four RRUs installed in centralized mode. 10. Six RRUs installed in centralized mode.
12
U-steel
Installing the RRU on a U-Steel
Plan view
Plan view
Angle steel
The procedure for installing the RRU on a U-steel is the same as that for installing the RRU on a metal pole.It is recommended that only one RRU be installed on a U-steel.
The procedure for installing the RRU on an angle steel is the same as that for installing the RRU on a metal pole.
It is recommended that only one RRU be installed on an angle steel.
Installing the RRU on an Angle Steel
13
Installing the RRU on a Wall
When the RRU is installed on a wall, the requirements are as follows:For one RRU, the wall has a weight-bearing capacity of 68 kg.The fastening torque of the expansion bolt reaches 30 N·m, the expansion bolt works properly, and no
damages such as cracks are on the wall.
Ø14
After the expansion bolt is removed, dispose of the plastic tube.
90°
55 mm to 60 mm
20 mm to 30 mm
M10x65 bolt
Spring washer 10
Plastic tube
Flat washer 10
Expansion tube
Do not hammer the bolt entirely into the wall. Instead, leave 20 mm to 30 mm of the bolt outside the wall.
1. Place the auxiliary bracket at the installation position. Use a level to check that the auxiliary bracket is placed horizontally. Then, mark the anchor points by using a marking pen.
2. Drill holes at the anchor points and then install the expansion bolt assemblies.
It is recommended that the auxiliary bracket be 1,200 mm to 1,600 mm above the ground.
The RRUs cannot installed on a wall in centralized mode. Therefore, expansion bolt assemblies should be prepared for each RRU. 1200 mm~1600 mm
128 mm
79 mm
Auxiliary bracket
79 mm
RRU
14
Arrows are upwards
30N•m
M10
Installing the RRU on a Wall3. Fit the auxiliary bracket on the expansion bolts downward, and then tighten the bolts by using a combination wrench 17 mm.
4. Install the main bracket.
5. Install the RRU.
15
560 mm 560 mm
≥70 mm ≥70 mm
≥760 mm ≥760 mm
Installing the RRU on a Wall
6. Install multiple RRUs.
Minimum Clearance:
Recommended Clearance :
16
BBU
RCU
Antenna
Installing the Cables of the RRU
Cable Connections of a Single RRUa
External power supply
PGND cableDC RRU power cableRRU RF jumperFeederAISG multi-wire cable between the RRU and the RCUAISG extended cable between the RRU and the RCUCPRI optical cableDC RRU alarm cable
Install the PGND cable
Start
Install the DC RRU power cable
Install the RRU RF jumper
Install the CPRI optical cable
Install the DC RRU alarm cable
End
Install the feeder
AISG multi-wire cable between the RRU and the
RCU(optional)
AISG extended cable between the RRU and the
RCU(optional)
17
Connections of Two RRUs Cablesb
The above figure shows the scenario where the RRU uses the CPRI optical cable and interconnect jumper. The CPRI optical cable is used for RRU cascading.Determine the routing of CPRI optical cables according to site requirements.
Installing the Cables of the RRU
PGND cableDC RRU power cableRF cable between RRUsCPRI optical cable
Antenna
External power supply
Antenna
Install the PGND cable
Start
Install the DC RRU power cable
Install the RF cable between RRUs
Install the CPRI optical cable
Install the DC RRU alarm cable
End
AISG multi-wire cable between the RRU and the
RCU(optional)
AISG extended cable between the RRU and the
RCU(optional)
18
Installing the Cables of the RRU
External power supply
Connect the fiber tails labeled 1A and 1B to the CPRI_W port on the RRU.
Connect the fiber tails labeled 2A and 2B to one of the CPRI0 to CPRI2 ports on the WBBP.
DLC connectorCPRI optical cable
When the RRUs need to be cascaded, use the CPRI optical cable to connect the CPRI_E port on the RRU 0 to CPRI_W port on RRU 1.
North American standard: The blue OT terminal is connected to socket labeled NEG(-)0 in the RRU cabling cavity. And the black OT terminal is connected to socket labeled RTN(+)0.
European standard: The blue OT terminal is connected to socket labeled NEG(-)0 in the RRU cabling cavity. And the brown OT terminal is connected to socket labeled RTN(+)0.
Two OT terminals (M4 )
DC RRU power cable
(North American standard: 12AWG
European standard:
4 mm² ) When two RRUs are cascaded, the OT terminals at both ends of the blue wire of the power cable are linked to the NEG(-) terminals on RRU0 and RRU1, and the OT terminals at both ends of the black wire of the power cable are linked to the RTN(+) terminals on RRU0 and RRU1.
Bare wire
Select an connector of appropriate type and size based on the external power supply. Use a cable with the diameter of 6 mm².
Feeder or antennaDIN connector
Ports labeled ANT_TX/RXA and ANT_RXB at the bottom of the RRU
DIN connectorRRU RF jumper
Grounding bar nearbyOT or 2-hole terminal (M8 )
Grounding bolt on the RRUOT or 2-hole terminal (M6) PGND cable
(16 mm²)
Connected to...Connector TypeCable
Cable Listc
19
Installing the Cables of the RRU
Standard AISG male connector of the AISG extension cable or RCU
Standard AISG female connector
Port labeled RET at the bottom of the RRUWaterproof DB9 connector
AISG multi-wire cable between the RRU and the RCU
Standard AISG male connector on the RCUStandard AISG female connector
AISG extended cable between the RRU and the RCU
External alarm deviceEight cord end terminals
Port labeled RS485/EXT_ALM in the RRU cabling cavity
DB15 connectorDC RRU alarm cable
Port labeled RX_IN/OUT at the bottom of the RRU
2W2 connectorRF cable between RFUs
Standard AISG female connector of the AISG multi-wire cable
Standard AISG male connector
Connected to...Connector TypeCable
c Cable List
The figures are for illustration purposes only and may not reflect actual cables.
20
Installing the Cables of the RRU
e
d
RRU Cabling Cavity
Opening the Cover Plate of the RRU Cabling Cavity
Cable troughs for cascadedoptical cables
Cable trough for the alarm cable
Cable trough for the power cable
Cable troughs for optical cables
Cable trough for the cascaded power cable
Cabling cavity
Cover plate of the cabling cavity
Label for preparing the power cable
Waterproof filler
M4
21
Grounding bolt
OT terminal
PGND cable
DC RRU power cable
Shielding layer of the power cable
Wrap the joint with the waterproofing tape, and then wrap it with PVC insulating tape.
DC RRU alarm cable
CPRI optical cable
After the cables are installed on the RRU, insert the waterproofing fillers into the idle cable troughs.
Installing the Cables of the RRUCable Connections on the RRUf
g Closing the Cover Plate of the RRU Cabling Cavity
Use the DC RRU power cable clip to press the shielding layer tightly and ensure that the lower part of the shielding layer does not exceed the position shown in the preceding figure.
Ground the shielding layer at the other end of the power cable.
Do not remove the dustproof cap from the idle antenna port, and use the waterproof tape to wrap the joint.
For details on how to add OT terminals to the DC RRU power cable of the RRU, see page 33 " Adding OT Terminals to the DC RRU power Cable of the RRU."
When wrapping the waterproof tape, apply even force to extend the tape until the width of the tape is 1/2 of the original width.
Wrap the joint spirally upward, downward, and then upward again. In other words, the joint is wrapped by three layers of the tape. Ensure that the two immediate layers overlap with each other about half the width of the tape. For details, see page 34 “Waterproofing Outdoor Cables.”
Install the optical module before installing the optical cables. For details, see page 34 “Installing the Optical Module.”
Waterproofing filler
The screws on the cover plate should be tightened until the fastening torque is 1.4 N·m.
Tighten the screws on the cover plate of the cabling cavity in the sequence shown in the figure.
1.4N•m
M4
22
Installing the Cables of the RRU
h
LOAD0
shielding layer
When connecting the DC RRU power cable to the DCDU-03B you must add an OT terminal to the shielding layer. Then, fix the OT terminal to the corresponding GND terminal of the DCDU-03B. For details on how to add an OT terminal, see page 34 "Adding OT Terminals to the Shielding Layer of the DC RRU Power Cable."
The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
CPRI optical cable
DC RRU power cable
DCDU panel facing the side, and the BBU panel facing downward
RRU+BBU Installed Against the Wall
23
Installing the Cables of the RRU
i RRU+OMB
The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
shielding layer (25 mm) PGND cable
Grounding the shielding layer of the power cable:
CPRI optical cable
DC RRU power cable
LOAD0
24
Installing the Cables of the RRU
The DC RRU power cable is connected to one of the LOAD4 to LOAD9 terminals of the PDU.
Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the APM30/APM30H(Ver.A).
shielding layer (25 mm) PGND cable
Grounding the shielding layer of the power cable:
j RRU+APM30/APM30H (Ver.A)
CPRI optical cable
DC RRU power cable
LOAD4
25
Installing the Cables of the RRU
k
Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the APM30.
The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
shielding layer (25 mm) PGND cable
Grounding the shielding layer of the power cable:
LOAD0
CPRI optical cable
DC RRU power cable
RRU+APM30(+24V) / APM30H(Ver.B, +24V)
26
l RRU+APM30H (Ver.B)
The DC RRU power cable is connected to one of the RRU0 to RRU5 terminals of the PDU.
Strip the jacket of the DC RRU power cable for a small part, press the exposed shielding layer on the strap, and then connect the PGND cable on the strap to the nearest grounding bolt on the side in the APM30H(Ver.B).
shielding layer (25 mm) PGND cable
Grounding the shielding layer of the power cable:
Installing the Cables of the RRU
CPRI optical cable
DC RRU power cable
RRU0
27
Installing the Cables of the RRU
m RRU+TMC
The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
shielding layer (25 mm) PGND cable
Grounding the shielding layer of the power cable:
LOAD0
CPRI optical cable
DC RRU power cable
28
nInstalling the Cables of the RRU
The DC RRU power cable is connected to one of the LOAD0 to LOAD5 terminals of the DCDU-03B.
shielding layer (25 mm) PGND cable
Grounding the shielding layer of the power cable:
LOAD0
CPRI optical cable
DC RRU power cable
RRU+TMC11H(Ver.A) / TMC11H(Ver.B)
29
Checking the RRU Hardware Installation
There are no connectors or joints on the power cable or PGND cable.5
The connector of the signal cable is intact and securely linked, and no damaged or broken parts exist on the cable.
9
Labels are correct, legible, and complete on both ends of each cable.10
The operating grounding and protection grounding of the NodeB and the lightning protection grounding of the building share one group of grounding conductors.
8
The power cable and PGND cable are separately bound from other cables. The cables must be not short-circuited or reversely connected. In addition, no damaged or broken parts exist in the cables.
7
The terminals at both ends of the power cable or PGND cable are securely soldered or crimped.
6
Waterproof fillers are installed in the idle cable troughs of the cabling cavity of the RRU, and the cover plate of the cabling cavity is securely installed. In addition, the idle RF ports are covered with waterproof caps and waterproofed.
4
The cover plate is securely installed on the cabling cavity of the RRU.3
The RRU is securely installed.2
The position for each equipment conforms to the engineering design and meets the space requirement. Sufficient space is reserved for equipment maintenance.
1
ItemSN
30
Powering On the RRU
The power switch must be set to OFF. Then, check the input voltage and ensure that the voltage ranges from -36 V DC to -57 V DC if -48 V DC power is supplied or 150 V AC to 300 V AC if AC power is supplied.
When the RRU is unpacked, it must be powered on within 24 hours.
Start
End
Power on the RRU
Check whether the status of the RUN LED
is 1s ON, 1s OFF and that of ALM LED is OFF.
Rectify the fault
Yes
No
31
Appendix
Lifting the RRU and Installation Components to the Towera
Lifting rope
Lower part of the adapting piece
Steering rope
1. Bind the RRU by leading the lifting rope along the lower part of the adapting piece and through the handle, bind the main and auxiliary brackets with the lifting rope, and then bind the steering rope with the handle of the RRU, as shown in the following figures.
2. Lift the RRU and installation components to the tower.
Do not bind the lifting rope only on the handle when lifting the RRU.
When lifting the RRU and installation components to the tower, prevent the RRU from colliding with the tower.
Lift the RRU to the tower before it is installed on the metal pole, angle steel, or U-steel.
Installer A climbs onto the tower. Then, installer A fixes the pulley to the support of the tower platform and leads the lifting rope through the pulley.
Installer C uses a lifting rope to bind the RRU and installation components as shown in the preceding figure and then ties a knot in the steering rope at the handle of the RRU.
Installer B pulls the lifting rope, and at the same time, installer C pulls the steering rope away from the tower to prevent the RRU and installation components from colliding with the tower.
Installer A holds the RRU and installation components and untie the ropes.
Steering rope
Lifting rope
Pulley
32
Appendix
To add the OT terminals, perform the following steps:
Adding OT Terminals to the DC RRU power Cable of the RRUb
Determine lengths of power cables for different operations according to the scale on the cover plate of the cabling cavity.
Based on the determined lengths, remove the jacket and shielding layer from the power cable.
Remove the jacket of the specified length from each wire.
Add an OT terminal to each wire.
Remove about 15 mm jacket from the power cable. The shielding layer is exposed.
Label for preparing the power cable
8 mm
15 mm
Adding the OT terminals to the DC RRU power cable involves adding OT terminals to the RRU power cable and adding OT terminals to the shielding layer of the DC RRU power cable. -48V DC power cable
Shielding layer
OT terminals
NEG ( - )
RTN ( + )
33
Appendix
c Adding OT Terminals to the Shielding Layer of the DC RRU Power Cable
Do not damage the shielding layer of the power cable when cutting around the jacket.
WARNING
Lead the wires made of the shielding layers through heat-shrinkable tubes.
Wrap the PVC insulating tape at the joint where the three wires meet.
OT terminal on the shielding layer
34
Waterproofing Outdoor Cablesd
The waterproof tape should be wrapped for an extra length of 20 mm away from the connectors at both ends.
The tapes should be wrapped around the connector from the lower part to the upper part. When wrapped for another layer, the tapes may not be cut.
When wrapping the waterproof tape, apply even force to extend the tape until the width of the tape is 1/2 of the original width.
When wrapping the waterproof tape, ensure that the upper layer of the tape covers at least 50% of the lower layer.
The insulating tape should be wrapped for an extra length of 20mm away from the connectors at both ends.
The last layer of the waterproof tape should be wrapped from the lower part to the upper part to prevent rainwater from infiltrating into the tape.
Waterproof tape Insulating tape
Installing the Optical Modulee
Tightly pressing the tape
1. Wrap three layers of waterproof tape.
2. Wrap three layers of insulating tape.
Tightly pressing the tapeBinding cable ties at both ends of the tape
tie
tie
Appendix
35
Appendix
Pin Assignment for the Wires of the Alarm Cablef
-
X9
X8
X7
X6
X5
X4
X3
X2
Cord End Terminal
-Shield--X.Shell
Twisted pair APM TX+BrownRS485_RX+X1.14
RS485_RX-
RS485_TX+
RS485_TX-
GND
SWITCH_INPUT1+
GND
SWITCH_INPUT0+
Signal name of DB15 connector
APM TX-White/BrownX1.13
APM RX+GreenX1.11
APM RX-Twisted pair
White/GreenX1.10
GNDOrangeX1.7
SWITCH_INPUT1+
Twisted pair
White/OrangeX1.6
GNDBlueX1.3
SWITCH_INPUT0+
Twisted pair
White/BlueX1.2
LabelWire Type
Wire ColorDB15 connector
36
This part describes the changes in the RRU3804&RRU3801E&RRU3806 Installation Guide.
08(2010-07-15)This is the eighth commercial release.Compared with issue 07 (2010-06-05) of V200, the figure of the minimum clearance for RRU are optimized, and the minimum clearance for the RRU installed on a tower requirements is added.
07(2010-06-05)This is the seventh commercial release.Compared with issue 06 (2010-03-05) of V200, the figure of the adapting piece for the RRU is changed, and the description on the recommended and minimum installation clearance requirements is added.
06(2010-03-05)This is the sixth commercial release.Compared with issue 05 (2009-12-10) of V200, the description on the cross-section area of the RRU power cable is added.
05(2009-12-10)This is the fifth commercial release.Compared with issue 04 (2009-09-25) of V200, the installation scenarios of APM30H(Ver.B), APM30H(Ver.B, +24V), TMC11H(Ver.B) are added.
04 (2009-09-25)This is the fourth commercial release. Compared with issue 03 (2009-06-30) of V200, the requirements for installation support structure are modified.
03 (2009-06-30)This is the third commercial release. Compared with issue 02 (2009-02-26) of V200, the figures of RRU brackets are modified.
Change History
HUAWEI TECHNOLOGIES CO., LTD.Huawei Industrial Base Bantian Longgang
Shenzhen 518129People’s Republic of China
www.huawei.com