HUAWEI TECHNOLOGIES CO., LTD.
www.huawei.com
Huawei Confidential
Security Level: Internal
47pt
30pt
:
FrutigerNext LT Medium
: Arial
47pt
28pt
Huawei LTE eNodeB Site Solution &
Installation Key Point
V1.4
2012-March 28
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
35pt
32pt
) :18pt
Page 2
LTE Network Topology
Chapter2: Installation Key Point and Mistake
CONTENTS
Chapter1: Site Solution
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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32pt
) :18pt
Page 3 Page 3
RRU Power Cable Solution
DCDU-11B RRU3232 < 45m
0~45m
46~100m
46 RRU 100m
DCDU-11B OCB 3.3
RRU3232
> 45m &
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
35pt
32pt
) :18pt
Page 4
BBU and DCDU install on the Transmission Cabinet
1) Power cable of RRU from Sector A connected Load 0; Power cable of another RRU
connected to Load 1; Power cable of BBU connected to Load 6.
2) CPRI Fiber of RRU from Sector A connected to CPRI 0 on LBBP board; CPRI Fiber of
another RRU connected to CPRI 1 on LBBP board.
3) Transmission Fiber connected to SFP 0; Transmission Ethernet Cable connected to GE/FE
0
4) CPRI Fiber should be tied with Hook & Loop Mechanical Fastener.
5) 1 U space should be reserved between BBU and DCDU.
5
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 5
Cable connection for RRU installed on Tower
(Extended RET cable between two RCUs use 15m)
Sector B Sector A Sector C
ANT0 ANT1 ANT2 ANT3
ANT0 ANT1
ANT0 & ANT1 of RRU0 are connected to +45 & -45 port of sector A antenna; ANT2 & ANT3 of RRU0 are connected to +45 & -45 port of sector C antenna; ANT0 & ANT1 of RRU1 are connected to +45 & -45 port of sector B antenna.
RRU 0 RRU 1
-45 +45
-45 +45
-45 +45
15M
Extended
RET cable
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Page 6
RRU installed on Tower
Sector A Sector B
RRU0 is installed on the same pole with
antenna of sector A;
RRU1 is installed on the same pole with
antenna of sector B.
RRU and antenna can be installed as
back to back.
RRU can be installed on a pole near the
pole for antenna.
RRU should be grounded on tower.
Sector C
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Page 7
Cable connection for RRU installed on roof pole site
(Extend RET cable between two RCUs use 30m)
ANT0 ANT1 ANT2 ANT3
ANT0 ANT1
-45 +45
-45 +45
-45 +45
Make the feeder to be shortest when you choose Sector 1 and 2 to share one RRU When the distance between two sectors is longer than 12m, and shorter than 40m. Use the
7/8 feeder;
Feeder
Sector 3 Sector 1 Sector 2
30M
Extended
RET cable
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Page 8
Cable connection for RRU installed on roof pole site
(Extend RET cable between two RCUs use 50m)
ANT0 ANT1 ANT2 ANT3
ANT0 ANT1
-45 +45
-45 +45
-45 +45
SBT must connected to ANT0 of RRU. The feeder to be shortest when you choose Sector 1 and 2 to share one RRU When the distance between two sectors is longer than 12m, and shorter than 40m. Use the
7/8 feeder;
When the distance between two sectors is longer than 40m, then use 13/8 feeder.
Feeder
Sector 3 Sector 1 Sector 2
50M
Extended
RET cable
0.5M RET
cable
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Page 9
1
2
1) CPRI fiber is connected to CPRI 0;
2) The metal shield of RRU power cable should
be cut and grounding on clip inside RRU
cabling cavity;
3) The water plugs should be filled in the vacant
troughs of the RRU cabling cavity.
Cable connection inside RRU cabling cavity.
3
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Page 10
Antennas cable connection
23
1) RCU is connected to the TILT as the picture.
2) +45 is the port 0 for antenna.
3) - 45 is the port 1 for antenna.
4) The vacant port of the antenna should be
waterproofed.
5) The TILT cover of vacant port should be
fasten.
5
1
4
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Page 11
Antennas Labeling
Sector A Sector B Sector C
ANT_0A
ANT_1A
ANT_0B
ANT_1B
ANT_0C
ANT_1C
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Page 12
GPS installation
GPS Antenna
Arrestor
GPS antenna is suggested to installed on the cable tray.
Arrestor is not allowed to touch the cable ladder.
The Arrestor should be grounded.
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Page 13
RRU Label Rules
RRU Label Rules
Sector: A BC Path: 0123
RRU 0
AN
T_
0A
AN
T_
1A
AN
T_
0C
AN
T_
1C
RRU 1
AN
T_
0B
AN
T_
1B
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 14
LTE Network Topology
Chapter2: Installation Key Point and Mistake
CONTENTS
Chapter1: Site Solution
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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) :18pt
Page 15
Safety belt and cap is extremely needed.
Wrong Right
Notes Safety cap is needed for the working on the site. And the safety belt is needed for working on the tower or poles.
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Page 16
Connect the power cable to the right port
Wrong Right
Notes 1. Power cable of RRU0 should be connected to LOAD0, label with LTE PWR RRU0
2. Power cable of RRU1 should be connected to LOAD1, label with LTE PWR RRU1
3. BBU should be connected to LOAD6, label with PWR BBU
PS: RRU0 is connected to the sector A antenna
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 17
Remove the shield of the power cable near connector
Wrong Right
Notes The black shield of the power cable near the power connector of DCDU should be cut and tied up.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 18
The CPRI fiber should be tied.
Wrong Right
Notes The CPRI fiber should be tied with Hook & Loop Mechanical Fastener. Dont use cable tie.
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Page 19
Put the redundant fiber on the Transmission Rack bottom
Wrong Right
Notes The redundant fiber should be circled and put on the bottom of the transmission rack. Dont put it outside the tower or on the cable tray.
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Page 20
The heat-shrink tube is used and shrink well.
Wrong Right
Notes The power cable should use the heat-shrink tube. And it should be done well.
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Page 21
Ground the DCDU on the Transmission Cabin
Wrong Right
Notes Ground the DCDU on the Transmission cabin. ( Use 6mm grounding cable. )
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Page 22
Installed the bracket assembly on the right direction
Wrong Right
Notes:
Follow the label on the bracket assembly carefully. And make sure the bracket assembly of the RRU is installed
on the right direction.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 23
The metal shield of RRU power cable is wrongly cut.
Wrong Right
Notes The metal shield of RRU power cable should be cut and grounding on clip inside RRU cabling cavity. The metal
shield can not be cut too long and it go outside the cabling cavity.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 24
The waterproof plugs are filled in the vacant troughs
Wrong Right
Notes The water plugs should be filled in the vacant troughs of the RRU cabling cavity.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 25
The vacant RF ports of the RRU are waterproofed.
Wrong Right
Notes Vacant RF ports of RRU are covered with waterproof caps and the caps are tightened.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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32pt
) :18pt
Page 26
Labeling the Jumpers of the RRU with the correct Label
Wrong Right
Notes Use Label ANT_0A and ANT_1A for Sector A;
Use Label ANT_0B and ANT_1B for Sector B;
Use Label ANT_0C and ANT_1C for Sector C.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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32pt
) :18pt
Page 27
The vacant RF ports of the antenna are waterproofed.
Wrong Right
Notes Vacant RF ports of antenna are covered with waterproof caps and the caps are tightened.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 28
The RF cable of GPS cant be circled.
Wrong Right
Notes The redundancy RF cable of GPS should be cut. Dont circle it if it is too long.
GPS_0
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 29
Remove the oil paint of the tower for grounding point
Wrong Right
Notes Oil paint of tower is not removed on earth grounding point.
electric ability surge protection will be decreased.
HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential
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Page 30
The power cable are grounded beside the Roxtec
Wrong Right
Notes The power cables of the RRU should be grounded by the grounding clip on the grounding bat before routed into the Roxtec.
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Page 31
The power cable should be grounded in the OCB.
Wrong Right
Notes The metal shield of the power cable should be grounded inside the OCB.
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Page 32
BBU and DCDU should be fixed with screws.
Wrong Right
Notes BBU and DCDU should be fixed with screws. Cable ties is forbidden to use for fixing equipment.
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Page 33
OCB should be grounded
Wrong Right
Notes The OCB should be grounded.
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Page 34
The waterproof cover of OCB should be fasten.
Wrong Right
Notes
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Page 35
Keep the environment of the site neat and clean
Wrong Right
Notes Keep the environment of the site neat and clean. Dont leave any boxes, cables, bottles inside and outside the shelter. Take all the garbage away the site.