Good understand indoor

1. Indoor Mobile Network
IBS Basic Training

2. Outline
Part 1
Part 3
Part 2
Part 4
Part 5

3. PART 1 IBS Introduce

4. PART 1 IBS Introduce ( Indoor Base Station )
Materials 1800Mhz&2
100Mhz
Window 3~5 DB
Cement brick wall 7~11 DB
Hollow brick 2~5 DB
Door(wood) 2~4 DB
Door(metal) 7~12 DB
Wood plank wall (5-10cm) 2~4 DB
gypsum drywall 3~5 DB
Reinforced concrete wall 18~28 DB
Floor barrier ＞28 DB

5. PART 1 IBS Introduce
Network Structure

6. PART 1 IBS Introduce
Place need Indoor coverage (Ellily Hotel Case)
1 All sides is surrounded
2 5 star Int. Hotel.
3 High blgd
4 New BTS is too cost

7. PART 1 IBS Introduce
Application Scenarios

8. PART 2 IBS Equipment And Materials

9. PART 2 IBS Equipment And Materials
Omni Antenna & Panel Antenna
Multiband 800-2500M
In Ethiopia :
GSM 900 / DCS 1800 / LTE 1800 / WCDMA
2100 / WIFI 2.4G.
Coverage Range
5 m to 10 m Coverage Radius
Base on different situation
Three kinds of installation
Install with Ceiling Antenna Bracket/
Antenna external inserted into
the ceiling/
Antenna inside the ceiling
Panel ANT.
Using for big room:
Meeting room /
Large venues

10. PART 2 IBS Equipment And Materials
Logarithm Period Antenna
 More Stronger Direction
 Used as donor antenna
 Used to coverage the elevator

11. PART 2 IBS Equipment And Materials
Coupler Multiband
Input Output
Coupler Side
Output = Input – Loss
Coupler Side = Input – Coupler Value
C Value 5 DB 7 DB 10 DB 15 DB 20 DB 30DB
Loss 2 1.4 0.8 0.4 0.2 0.2

12. PART 2 IBS Equipment And Materials
Power Splitter
Input
Output 2
Output 1
Output 1 = Output 2/3/4 = Input - Loss
Splitter 2 Way 3 Way 4 Way
LOSS 3.3dbm 5.3dbm 6.6dbm

13. PART 2 IBS Equipment And Materials
Connector and Cable
Connector for ½
cable
Connector for
7/8 cable
Right Angle
N-Male-Female
NJJ
(male-male)
NKK
(female-female)
Attenuator 6DB
& 10DB
Multiband

14. PART 2 IBS Equipment And Materials
Auxiliary material
Insulated tape
Antenna Bracket
Ground wire
1/2 Grounding cards
Power cable
Cable tie black/white
Waterproof tape

15. PART 2 IBS Equipment And Materials
Trunking

16. PART 2 IBS Equipment And Materials
Repeater
Input power : -40 dbm ~ -80 dbm
Output power : 10W = 40 dbm
Length(mm) Width(mm) Height(mm) Weight(Kg)
530 420 285 50
P=10W = 1000 mW= 1*104 mW
10LgP = 10 lg (1*104)
=10*(0+4)
=40 dbm

17. NO Mark Meaning Port
1 POWE
R
AC220V or DC24V Waterproof socket
2 FAN Fan connector
3 GND Earthing busbar
4 DONO
R
D+W Donor RF signal
interface
NF
5 REPEA
T
D+W Service RF signal
interface
NF
6 PWR Power Indicator
7 RUN working Indicator
8 RS232 Local Monitoring Interface Waterproof DB9
Female
9 RJ45 Ethernet port
10 Modem Modem Antenna Interface SMA（ Female ）
11 VENT Breathable film
PART 2 IBS Equipment And Materials
Repeater

18. PART 2 IBS Equipment And Materials
Amplifier
Length（mm） Width（mm） Height（mm） Weight（Kg）
530 440 230 30
Mark Meaning Remark
1、POWER AC220V Power Input
2、VENT Holes
3、RF-IN RF Input -15 ~ 0 dbm
4、Modem Modem antenna
5、PWR Power Indicator
6、RUN Running indicator
7、RS232 Debugging Serial Connect to test tool
8、RF-OUT RF output

19. PART 3 Site Survey & Design

20. PART 3 Site Survey & Design
Survey Tools
Test Phone
Signal test
Site Master
Spectrum analyze
Distance Master
Distance measure
Yagi ANT.
Donor position

21. PART 3 Site Survey & Design
Survey
2
4
1
3
5
Donor Ant. & Device
Test and choose the best position for
donor antenna, and select a place for
repeater/ amplifier install.
Antenna
Base on the measure put the ant.
position on the floor plan, and
remark the cable route.
Measure
Measure every floors and remark on the
floor plan . Remark the door position and
wall position.
Cable rise
Check cable rise position fro every floor,
and check it is connect each other or not.
Site floor plan
Get the floor plan, or draw the floor
plan on site.

22. PART 3 Site Survey & Design Survey
Ellily Hotel Block A 4th
Floor
23.4m
13.2m
Cable
Rise
A. Cable rise position
B. Measure the floor
C. ANT. position
D. Cable route

23. PART 3 Site Survey & Design
IBS Donor Antenna Position & Direction
A. Use site master check one
direction strongest signal
around the building.
B. Lock the signal by test phone
to check the signal is good or
not.
C. Check another direction if the
signal cannot be used.
Site Master First
A. Lock signal one by one
from the neighbour cells
list , and select the best
signal.
B. Use site master with yagi
ant. to find that signal
direction.
Test Phone First
1 2

24. PART 3 Site Survey & Design
Frequency and frequency Num.
Region
GSM 1800 UMTS 2100 LTE 1800
UL DL UL DL UL DL
Addis Ababa
1. 1747.5 - 1756.5
2. 1776.5 - 1785
1. 1842.5 -
1851.5
2. 1871.5 -
1880
1. 1924.9 -
1929.9
2. 1929.9 -
1934.9
3. 1945.1 -
1950.1
4. 1940.1 -
1945.1
1. 2114.9 - 2119.9
2. 2119.9- 2124.9
3. 2135.1 - 2140.1
4. 2130.1 - 2135.1
1756.5 -
1776.5
1851.5 -1871.5
DCS1800: F DL = 1805 + 0.2*(NBCCH - 511)
NBCCH = (F DL – 1805) * 5 +511
WCDMA: UARFCN = Center Fre. * 5
((2119.9 – 2114.9) / 2 +2114.9 ) * 5 = 10587
10587 / 10612 / 10688 / 10663
LTE Band 3: EARFCN = (Center Fre. -1805)*10+1200
((1871.5-1851.5)/2 +1851.5)*10 + 1200 = 1765

25. PART 3 Site Survey & Design
IBS
Design

26. PART 3 Site Survey & Design
Design Considerations
Output power for repeater Ant. DCS: 8 ~ 13 dbm
WCDMA: 1~6 dbm
Cable route The design route must be available to pass the
cable, and must be beautiful.
Cable rise position
If the building don't have cable rise, the main
route of the design must be one cable.
Special area Consider about the special area
Repeater&Donor ANT. Position
System power is start from repeater ;
Donor antenna must be far away indoor ant..
1
2
3
4
5

27. PART 3 Site Survey & Design
About the system power & loss
Repeater output: 40dbm (37dbm)
Amplifier output: 37dbm
1/2 cable loss: 0.112dbm / m
7/8 cable loss: 0.072dbm / m
C Value 5 DB 7 DB 10 DB 15 DB 20 DB 30DB
Loss 2dbm 1.4dbm 0.8dbm 0.4dbm 0.2dbm 0.2dbm
Splitter 2 Way 3 Way 4 Way
LOSS 3.3dbm 5.3dbm 6.6dbm
DCS: 8~13dbm
WCDMA: 1~6dbm

28. PART 3 Site Survey & Design
1. Select the main route.
2. Every last two antenna of
branch route ,we use two
way to connect.
3. Coupler output power
always stronger than
coupler side output.
4. Antenna Num. start from ?
ANT6
ANT5
ANT4
ANT3
ANT2
ANT1

29. PART 3 Site Survey & Design
Example 2
ANT7
ANT5
ANT4
ANT3
ANT2
ANT1
ANT6

30. PART 3 Site Survey & Design
Example 3
ANT3
ANT1
ANT7
ANT6
ANT5
ANT4
ANT2

31. PART 3 Site Survey & Design
Example 4
ANT7
ANT5
ANT1
ANT2
ANT3
ANT4
ANT6

32. ANT7
ANT5
ANT1
ANT2
ANT3
ANT4
ANT6
PART 3 Site Survey & Design
System diagram
ANT7
ANT6
ANT1
ANT2
ANT3
ANT4
ANT5
Power from cable rise

33. PART 3 Site Survey & Design
System diagram
ANT3
ANT1
ANT7
ANT6
ANT5
ANT4
ANT2
ANT7
ANT6
ANT1
ANT2
ANT3
ANT4
ANT5
Power from cable rise

34. PART 3 Site Survey & Design
How to connect each floor
ANT7
ANT6
ANT1
ANT2
ANT3
ANT4
ANT5
Power from cable rise
ANT7
ANT6
ANT1
ANT2
ANT3
ANT4
ANT5
Power from cable rise

35. PART 3 Site Survey & Design
How to connect each floor
Cable rise2nd
Cable rise1st
Cable rise3rd
Cable rise4th
Cable rise5th
Repeater

36. PART 3 Site Survey & Design
How to connect each floor

37. PART 3 Site Survey & Design
Practice time

38. PART 3 Site Survey & Design
LTE access
2G & 3G
Repeater
LTE
Repeater
LTE bandwidth filter
Hybrid Coupler
Load

39. PART 3 Site Survey & Design
LTE access
2G & 3G
Repeater
LTE
Repeater
LTE bandwidth filter
Hybrid Coupler

40. PART 4 Configuration & Testing

41. PART 4 Configuration & Testing
Tools
Tools:
Laptop(Windows 7/ XP)
USB-232 Cable
Test phone( Tems pocket)
Software:
Testtools / Simple OMC
TEMS Investigation 14 / 16

42. PART 4 Configuration & Testing
Driver for configuration cable
1 3
4
2

43. PART 4 Configure & Testing Testtools
1
2
3
4
5
6
7
8
9
RS232

44. P2
PART 4 Configure & Testing
Testtools

45. P4
PART 4 Configure & Testing
Testtools
P3
＞-80
＜-30
＞10
＜43
＜33
＜3
＞-100
＜-30
＞10
＜43
＜33
＜3
Channel 2 : WCDMA
Channel 3 : DCS

46. PART 4 Configure & Testing
Testtools
WCDMA UL AP switching
WCDMA DL AP switching
DCS UL AP switching
DCS DL AP switching
WCDMA ATT.
DCS ATT.
1. Channel2 is WCDMA, channel3 is DCS.
2. Adjusting the uplink & downlink att. To
change repeater power.
3. Uplink att. Must be bigger than
downlink att. (6~3db)

47. P6
PART 4 Configure & Testing
Testtools

48. PART 4 Configure & Testing
Testing
1
2
3
2G TESTING
BCCH RxLev.
TCH RxQual.
Call Test
1
2
3
3G TESTING
RSCP
Ec/No
Call Test

49. PART 4 Configure & Testing
Testing
2G TESTING 3G TESTING
BCCH Rxlev. S BCCH S Rxlev.
TCH TCH RxQual.
UARFCN RSCP Ec/No
4G TESTING

50. PART 4 Configure & Testing
Testing
BCCH : Broadcast Control Channel
RxLev.: Received Signal Level
TCH: Traffic Channel
RxQual.: Received Signal Quality
UARFCN : UTRA absolute radio frequency channel number
RSCP: Received Signal Code Power
Ec/No: Ratio of energy per modulating bit to the noise spectral density.
EARFCN: E-UTRA absolute radio frequency channel number
RSRP: Reference Signal Receiving Power
RSRQ: Reference Signal Receiving Quality

51. PART 4 Configure & Testing
Testing

52. PART 5 Trouble Shooting

53. PART 5 Trouble Shooting
Trouble Shooting Step
1.To check all the equipment parameters through the
monitoring center of remote telemetry or local check.
2.To check the indicator light
power light Dual light
（green）on——normal power supply （red）on—equipment trouble
light off or flickering——abnormal power supply （green）on—working well
3.Test input and output for every part.

54. PART 5 Trouble Shooting
Common
54
Power for repeater
Check the power connection for
repeater and amplifier .
Module
Test module inside repeater.
Cable connection
Check the connection in the cable
rise.
Donor Ant.
Choose another position for donor
antenna.

55. PART 5 Trouble Shooting
Common alarm and approaches
Downlink low input power alarm
Downlink VSWR alarm
Downlink low output power alarm
A. Check donor ant. position signal , choose another
direction or change another position.
B. Check the cable connection from donor to repeater.
C. Check the module working conditions.
A. Check the input power on the range or no.
B. Check the ATT. Inside repeater , adjust AAT.
C. Check the module working conditions.
A. Check the cable connection for repeater output power
to antenna.

56. THANKS
GrenTech
END