Viettel (Cambodia) Pte., Ltd
Pheoung Sarim BSS Team leader
HUAWEI BTS3900 Hardware and Alarm
NOC Department ISSUE1.0
Contact point (855) 977292888 www.metfone.com.kh
Contents
1- BTS3900/BTS3012 System Description 2- Hardware Component 3- Alarm 4- Configuration
1-UmBTS3012/BTS3900 System Description Interface MS
BTS3900
BSC A Interface
MS
MSC/VLR M AP MAP
BTS3900
HLR/AUC/EIR
BTS MS
BTS3900
PSTN ISDN PSP DN
TUP,ISUP
SMC/VM
OMC
MS: Mobile Station
BTS: Base Transceiver Station
BSC: Base Station Controller
HLR: Home Location Register
AUC: Authentication Center
EIR: Equipment Identity Register
MSC: Mobile Switching Center
VLR: Visitor Location Register
SMC: Short Message Center
VM: Voice Mailbox
OMC: Operation and Maintenance Center
DBS ： Distributed Base Station
2. BTS3900 Hardware structure
2- Hardware Component uBTS
3900 Hardware consists of :
ØBBU ØDRFU/GRFU ØDCDU-01 ØGTMU ØFAN BOX ØCPRI Cable ØRX Cable ØExternal alarm (RJ45 Port 0) ØJumper
2. BTS3012 Hardware structure Abis Interface
Um
E1
fiber
Protection for signal
Monitor
BITS
TBUS/DBUS/CBUS
CBUS 2
DTMU
DBU CBUS S/ TBUS
E1 Metro 100 DEMU
NFCB DCSU
Extension cabinet
DTRU
CBUS 3 CBUS DTRU 2 CBUS 3
CBUS 3 CBUS 3 DBU S
Common subsystem
CBUS 2
DTRU
Interface
MS
RF signal
DDPU
FH_BUS FH_BUS RF signal
DDPU
FH_BUS RF signal
DDPU
CBUS 3
Double transceiver subsystem
Forepart of RF Antenna and feeder subsystem Subsystem
2- Hardware Component (Cont) uBTS
3012 Hardware consists of :
Cabinet Top Access Subsystem (DCTB)
D M L C
Antenna FrontEnd of the RF Subsystem (DAFU)
D E L C
D E L C
D S A C
Power
D D P U
EMC
D D P U
D D P U
D T R U
D T R U
Wiring
Double transceiver subsystem
D T R U Wiring FAN Air Inlet
Common Subsyste m
D T M U
D E M U
D C S U
D C C U
Wiring & Air Inlet
and
2- Hardware Component (Cont) uBTS
3012 Hardware consists of :
Abbreviations
Description
DTRU
Double Transceiver Unit
DTMU
Transmission & Timing & Management Unit for DTRU BTS
DCCU
Cable Connection Unit for DTRU BTS
DAFU
Antenna Front-end Unit for DTRU BTS
DDPU
Dual Duplexer Unit for DTRU BTS
DMLC
Monitor Signal Lightning-Protection Card for DTRU BTS
DELC
E1 Signal Lightning-Protection Card for DTRU BTS
DCSU
Combined cabinet Signal connection Unit for DTRU BTS
DEMU
Environment Monitoring Unit for DTRU BTS
DCTB
Cabinet Top Backplane for DTRU BTS
FAN Box
NodeB Fan Controlling and monitoring Board
3- Alarm 1- Board Type Mismatch alarm 2- Cell out of service 3- Diversity receive alarm 4- Radio link prompt alarm 5- TRX Communication alarm 6- TRX Config Mismatch alarm 7- TRX VSWR alarm 8- VSWR Prompt alarm 9- SFP Port Inconsistency Alarm
3- Alarm (Cont) 10- TRX Hardware Critical Alarm 11- Level 2 VSWR Alarm 12- Level 1 VSWR Alarm 13- Board Communication Alarm 14- DBUS alarm
1- Board Type Mismatch alarm
Description This alarm is reported when the board inserted into the slot is not the Antenna and GSM type. Reason Hardware: - Insert wrong GSM type and card name. EX: Inside we use GSM900 but we insert GSM1800. And BTS site use card GRFU, but in BSC site configure card DRFU. System: - GSM type at site and BSC site are difference type. - Board name at BTS site and BSC configuration are difference name. Solution
2- Cell out of service
Description This alarm is generated when the hardware is faulty or lock cell. Reason Hardware: - Faulty card DRFU/GRFU. - Module was damage - Card DDPU, DTRU broken. - TX cable loose connection or broken. System: (Click here for detail) - Lock cell or cell not active. - Software not activated.
3- Diversity receive alarm
Description - The alarm is reported when the gain of the diversity receive path smaller than that of the diversity receive path exceeds the relevant threshold. Reason Hardware: - The connection of the RF cable is loosened, broken, wrong configuration or damaged. -
The connection of Jumper is different Antenna port on BTS and BSC
3- Diversity receive alarm
Note: - In system configuration 1 One card DRFU have double feeders
2
1
2
One card DRFU have single feeder
2TRXs set Antenna mode (Sent Receive mode Double Feeder (2TX + 2RX)
4TRXs set Antenna mode (Sent Receive mode Single Feeder (1TX + 2RX)
4- Radio link prompt alarm
Description -
This alarm is reported when the BTS detects continuous RL abnormalities. The power level imbalance between uplink and downlink. It indicates that the uplink power level and the downlink power level deviate from each other greatly. Reason Hardware: ●
●
The connection of the RX cable is loosened, broken, wrong configuration or damaged. Card DRFU was damaged.
Software: (Click here for detail) -
Wrong Configure between BSC and BTS
5- TRX Communication alarm
Description - This alarm is reported when the TRX detects that the transmitting/receiving phase-locked loop or the test phase-locked loop in the TRX cannot output the required frequency. Reason - The connection of the Jumper cable is loosened or broken. - CPRI optic cable is loosened or broken. - Insert CPRI optic cable incorrect to the port of DRFU and GTMU port.
6- TRX Config Mismatch alarm
Description The alarm is reported when any of the following conditions occurs: (1) The frequency of the TRX is not consistent with the type of the TRX. (2) The static power of the TRX is lowered by the main control module to protect
Reason ●
-
-
Hardware:
Wrong GSM card (Bandwidth) (GSM900/1800) of Card DRFU/GRFU (Insert wrong GSM card) Insert wrong CPRI cable wrong slot on card GTMU.
6- TRX Config Mismatch alarm (Cont) Solution Software: ●
●
●
●
●
View alarm: Click on site name and than click on card of cell by right click on card DRFU/GRFU => View Site Board => Configure Site Board Attributes => View on Sent Receive Mode => Single Feeder (1TX + 2RX) Not: If you see this mode you must be change it to Double Feeder (2TX + 2RX) if site configured 2TRX. Solution: (Click here for detail) Right click on site at left panel => Configure Site Board Attribute => Configure Site Board Attribute => Configure Site Board Attribute = Sent Receive Mode (Double Feeder (2TX + 2RX)) => OK => OK
7- TRX VSWR alarm
Description -
-
This alarm is generated when the cables concerning the power output port of the TRX (TX1, TX2, TCOM) are not properly connected. This alarm is generated when the antenna jumper is not connected to the antenna port of the Carrier Module.
Reason - The cable between the power output port of the TRX and the power input port of the RF front-end unit (DDPU) is damaged. - The connection of the Jumper cable is loosened or broken.
8- VSWR Prompt alarm
Description - If the VSWR of the antenna system exceeds the Carrier Module VSWR warning alarm threshold, the VSWR warning alarm is generated. Reason - The connection of the Jumper cable is loosened or broken. - Carrier Module (DRFU) is faulty - Feeder, connector of feeder and antenna was faulty Solution
9- SFP Port Inconsistency Alarm
Description - The SFP port configuration on the RXU Chain of the BSC is inconsistent with the physical connection. Reason - Topology configuration on the SFP port is inconsistent with physical connection. - CPRI chain/ring on the SFP port is disconnected. - A CPRI port on the GTMU chain/ring on the SFP port is blocked. - Card DRFU faulty.
9- SFP Port Inconsistency Alarm
GTMU
BBU Interface
10- TRX Hardware Critical Alarm Description The alarm is reported when any of the following conditions occurs: 1.
2.
The TRX phase-locked loop is faulty, which causes the TRX unavailable. The power unit, power amplification unit, flash memory or RF module is faulty, which causes the TRX unavailable.
Reason: -.
Card DRFU/GRFU was damage.
-.
RF cable (CPRI) broken
-.
Card not run yet download software from BSC
11- Level 2 VSWR Alarm Description The DUP Unit reports a VSWR alarm when detecting that the VSWR on antenna port A or antennal port B is greater than Serious Standing Wave Radio Alarm Threshold (default Value: 3.0). Reason: ●
Hardware:
The VSWR of the antenna system is too high value. -
TRX Communication cable between card duplexer unit (DDPU) and card transceiver -
11- Level 2 VSWR Alarm (Cont) Solution: -
Check the connections between the jumper and the duplexer unite, between the jumper and the feeder, between the jumper and
the surge protection unit, and between the jumper and the antenna. -
-
Check whether the water leaks into the connectors between the jumper and the duplexer, between the jumper and the feeder Replace the connector where water leakage
13- Board Communication Alarm Description This alarm is reported when the main controlling module detects abnormal communication between it and the radio frequency (RF) front module. Reason: Hardware: Card DDPU was broken. Power cable of DDPU connected to DAFU is broken. Communication cable between card DSCU and DCCU to the top DSCB card are broken or loose
14- DBUS alarm Description This alarm is reported when the DBUS clock of the TRX is abnormal or the TRX hardware detects that the DBUS signal sent by the main control module is lost. Reason: ●
●
●
Hardware:
DTRB Cable on card DSCU connected to DSCB are loose connection. Tran cable on card DCCU loose connection or broken.
●
Subrack of DTRU was damage.
●
The DBUS cable connected from Subrack DTRU
4- Configuration BTS3012
Typical configuration S2/2/2 (No combining mode ）
4- Configuration BTS3012 (Cont) Typical configuration 2/3/3 no share card
4- Configuration BTS3012 (Cont) Typical configuration 2/3/3 share card slot 4
4- Configuration BTS3012 (Cont) Typical configuration 4/4/4
4- Configuration BTS3900
Typical configuration S2/2/2
CPRI_0
CPRI_1
CPRI_2
CPRI_3
CPRI_4
CPRI_5
4- Configuration BTS3900 (Cont) Typical configuration 2/3/3 no share card
CPRI_0
CPRI_1
CPRI_2
CPRI_3
CPRI_4
CPRI_5
4- Configuration BTS3900 (Cont) Typical configuration 2/3/3 share card slot 4
CPRI_0
CPRI_1
CPRI_2
CPRI_3
CPRI_4
CPRI_5
4- Configuration BTS3900 (Cont) Typical configuration 4/4/4
CPRI_0
CPRI_1
CPRI_2
CPRI_3
CPRI_4
CPRI_5
Thank You
Name: PHOEUNG SARIM E-mail:
[email protected] Tel: +855977292888
