1- Introduction to Flexi EDGE BTS Platform 2- Hardware Component 3- Alarm 4- Configurati Configuration on
1- Introduction to Flexi EDGE BTS Platform
1.1 Flexi EDGE BTS Architecture
Click to edit Master text styles Second level Third level Fourth level Fifth level ●
●
●
1- Introduction to Flexi EDGE BTS Platform (Cont)
BTS Flexi show interface
BTS Flexi body interface
2- Hardware Component
FIPA interface
ESMA interface
2- Hardware Component (Cont) Click to edit Master text styles Second level Third level Fourth level Fifth level ●
●
●
EXxA Combiner
ERxA
2- Hardware Component (Cont)
3- Alarm
1.ESMA System module has lost
connection to EXxx TRX module 2.EXxx TRX module Tx power overdriven at DPC 3.EXxx TRX module Tx power is less than minimum at DPC 4.RSSI detected Rx signal difference diff erence exceeding threshold ERxx DDU module has
c onnection to EXxx TRX module 1- ESMA/System module has lost connection
Description: ●
EXxx TRX module does not respond to polling command from ESMA System module. EXxx TRX module can be connected to ESMA either directly.
Reason: Hardware: ●
●
The BUS cable connect between ESMA to EXxA loose connection or broken. The PW cable connect between ESMA to EXxA loose connection or broken.
●
Card ERxA or EXxA broken or port faulty.
●
Card ESMA was damage or broken.
Solution:
Hardware:
2- EXxx TRX module Tx power overdriven at DPC
Description: ●
Tx output power is over 2 dB higher than expected at Digital Power Control circuit block in EXxx TRX module.
Reason: Hardware: -
Card EXxA loose PW cable connection.
-
Card EXxA broken.
-
The TX output power from card ESMA was damage.
Solution: Hardware:
-
Check PW cable connected from EXxA to ESMA.
-
Replace card EXxA if broken.
Software: -
Connect Laptop to ESMA start Flexi Flexi EDGE Nokia Manager Manager
t han minimum at DPC 3- EXxx TRX module Tx power is less than
Description: Tx output power is less than +14.5dBm at Digital Power Control circuit block in EXxx TRX module. Reason: Hardware: -
Card EXxA loose PW cable connection.
-
Card EXxA broken.
-
The TX output power from card ESMA was damage.
Solution:
Hardware: -
Check PW cable connected from EXxA to ESMA.
-
Replace card EXxA if broken.
Software:
s ignal difference exceeding threshold 4- RSSI detected Rx signal
Description: The difference limit of Received Signal Strength Indicator measurement has exceeded between the main and diversity antennas. Reason: Hardware: ●
Wrong RF cable configuration.
●
Bus cable receive RSSI from EXxA lose data.
●
RF cable broken or loose connection.
●
●
RF cable connection between the TRX, feeder, and antenna broken. Card ERxA, EXxA, EXxA, WCxx (Combiner), ESMA ESMA was damaged.
Software:
Tx A/B input. 5- ERxx DDU module has detected no Tx power at TxA/B
Description: There is no Tx power detected at TxA input of ERxx DDU module. When you have remove TX_A alarm power input will appear. appear. Reason: Hardware: -
Tx_A loose connection from ERxA to EXxA when we moved Tx_A.
-
RF cable, combiner (EWxA) broken
-
Card ERxA, EXxA was damage or faulty.
Solution:
Hardware: -
Check Tx_A is connect between ERxA to EXxA.
6- ERxx DDU module has detected VSWR above major limit at antenna A/B.
Description: Reason: Hardware: -
-
-
-
-
RF cable connection between the TRX, feeder, and antenna broken. Card ERxA was damaged or broken. Connector between Jumper to Feeder Feeder loose connection or broken. Jumper broken or auto disconnected when card ERxA too hot. Water inside feeder during we installed or Feeder moved.
Solution:
fr ame clock 7- EXxx TRX module failed to synchronize to incoming frame FCLK.
Description: EXxx TRX module has detected that it cannot synchronise to the Frame Clock. FCLK is generated by ESMA System Module which is distributed to EXxx TRX modules either directly Reason: Hardware:
●
Bus cable cannot synchronize to from ESMA to EXxA.
●
EXxA, ESMA, BUS cable broken.
Solution:
Hardware:
Check the bus cable chain from ESMA to EXxx. Issue a HW Reset to EXxx. Replace EXxx.
8- EXxx TRX module has missing transmission time slot allocation.
Description: Reason: Hardware: ●
Plug BUS cable between EXxA to ESMA incorrect incorrect port.
●
Card ESMA was damaged or broken.
Software: ●
Wrong commissioning from Flexi EDGE Nokia Manager.
Solution:
Hardware:
Check plug in BUS cable between EXxA to ESMA is correct port. Change card ESMA if port was broken.
9- Hardware incompatibility detected during EXxx TRX module configuring.
Description: Frequency band/channel or BTS configuration mismatch between the BTS units and BSC configuration. Reason: Hardware: - Declare wrong frequency number defined at the BSC match with the used ERxx at the BTS site. -
Site use wrong model GSM type. (ERxA: GSM 900M, 1800M)
Solution:
Hardware:
10- Path A of Rx LNA amplifier chain is broken in DDU (ERxx) module.
Description: Both low noise amplifiers in a balanced stage have failed for Path B of ERxx DDU module. If diversity is used, Path A is still working. Reason: Hardware: -
Card ERxA broken because Diversity receiver with noise amplifier was disable.
Solution: Hardware:
-
Change card ERxA (Need to change card ERxA)
11- EXxx TRX module has no combiner ERxx DDU or ECxx RTC module prensent
Description: There is no ERxx DDU module or Combiner module detected for the sector at start up. Reason: Hardware:
-
RF cable loose connection or faulty.
-
Card Combiner broken or no power input.
-
Card ERxA broken at TX_A.
-
In Sector no combiner in slot when you upgrade.
Solution:
Hardware: -
Check RF cabling to ERxA and Combiner.
13- RF Cable not connected.
Description: RF cable auto detection fails due to inconclusive Rx levels received. received. Therefore, Therefore, the BTS cannot determine RF cabling. Reason: Hardware: - RF cable loose connection during upgrade or downgrade configure. -
-
Wrong configuration at site and in BSC when O&M not commissioning. Card ERxA, EXxA, WCxA (Combiner) broken or damaged.
Solution:
4- Configuration
Configure S2/2/2
4- Configuration (Cont) Configure S2/3/3 No share card
4- Configuration (Cont) Configure S2/3/3 Share card Bus 4
