Reference Manual
Table Of Contents
- RBS 2206 Reference Manual
- Contents
- Preface
- Product Safety Requirements RBS 2000
- Environmental Capabilities
- Scope
- Terminology
- References
- Transport -40 C - +70 C
- Storage -25 C - +55 C
- Handling -40 C - +70 C
- Operation Indoor +5 C - +40 C
- Operation Outdoor -33 C - +40 C
- Operation Outdoor -33 C - +45 C
- Operation Outdoor -33 C - +55 C
- Operation Mast Mounted Equipment -33 C - +45 C
- Operation Mast Mounted Equipment -33 C - +55 C
- Radio Configurations, RBS 2206
- Product Data
- Unit Description, DXU-21
- Unit Description, dTRU
- Unit Decription, CDU-G and CDU-F
- Unit Description, CXU-10
- Unit Description, FCU-01
- Unit Description, DC-Filter 01
- Unit Description, PSU 1200 W
- Unit Description, ACCU/DCCU
- Unit Description, IDM
- Broadcast
- Common Control Channel Handling
- Physical Channel Handling
- Speech and Data Services
- Packet Data Services
- Call Control
- References
- Channel Activation
- Adaptive Frame Alignment
- Asynchronous Handover Detection
- RF Channel Release
- Deactivate SACCH
- Link Establish Indication
- Link Release Indication
- Link Establishment Request
- Link Release Request
- Transparent Message Transmission
- Transparent Message Reception
- SACCH Info Modify
- LAPDm
- Channel Reactivation
- Power Information
- GPRS, Physical Link Layer
- Base Station Power Control
- Channel Measurements
- Discontinuous Transmission
- Frequency Hopping
- Encryption
- Mode Modify
- Mobile Station Power Control
- Short Message Service
- Diversity Supervision
- Synchronization
- Radio Reception
- Radio Transmission
- Frequency Allocation Support
- Restart and Recovery
- Function Change
- Functionality Administration
- Operation and Maintenance Support
- References
- Concepts
- Buttons
- Change RU to Local Mode
- Change RU to Remote Mode
- Change RU to Remote Mode Cancel
- Change SW Power Boost Slave RU to Local Mode
- Loop Control
- RF Loop Test Supervision
- Calendar Time Request
- RSSI Temperature Compensation
- Max Cooling
- Fault Indicator
- BS Fault Indicator
- Operational Indicator
- Tx Not Enabled Indicator
- Local Mode Indicator
- External Alarms Indicator
- DC Disconnected Indicator
- Battery Mode Indicator
- Bat Disconnected Indicator
- AC Fault Indicator
- Test Result Indicators (not used)
- Local Mode in Progress
- Installation Data Handling
- Self Test and Supervision
- Diagnostics and Fault Handling
- Operation and Maintenance Terminal
- External Alarms
- Handling of Auxiliary Equipment
- Climate Protection
- EMC Capabilities
- Transmission Interface Handling G.703 2048 kbit/s
- Transmission Interface Handling DS1 1544 kbit/s
- Terrestrial Link Handling
- Channel Distribution Function
- Transport network O&M functions-DXX Support
- BTS Parameter Limitations
- Glossary
Synchronization
the lack of reference source. This fault actually implies for an ITU-T
G.703 2048 kbit/s system that the reference on both PCM-A and PCM-
B is not usable. If the RBS has not regained its synchronization either
by re-establishment or reselection within 60 minutes (when TF mode is
master and stand-alone) and within 15 minutes (when TF mode is
slave), it is reported to the BSC which orders the RBS to disable all
radio transmission. This maximum time for the internal oscillator to
guarantee synchronization quality is known as "Hold-over expired
time". The function is terminated when the reference source is
considered as usable or after "Hold-over expired time".
31.6 Supervision of Reference Source
Purpose
The function should decide if the reference source is to be considered
as usable or not. This is done by supervision of the synchronization
source as well as the quality of the synchronization signal.
Precondition and Initiation
The function is initiated when synchronization to the reference source is
established.
Description
Depending on if the PCM interface or the Optional reference source or
another RBS is used as a reference, the following criteria are used for
evaluation of the reference source.
PCM interface as reference:
•
LOS (Loss Of Signal), LOF (Loss Of Frame alignment) or AIS
(Alarm Indication Signal) detected by physical interface.
• Illegal high jitter and wander characteristics. The limit is specified
in /G.823/.
• Illegal high relative frequency deviation. The limit is 0.1 ppm.
Optional reference source:
•
Failure of the optional reference source.
• Illegal high jitter and wander characteristics. The limit is specified
in /G.823/.
• Illegal high relative frequency deviation. The limit is 0.1 ppm.
Other RBS as reference:
• Interruption.
• Correct and continuous frame number.
• Illegal high wander characteristics. The limit is specified in /
G.823/.
• Illegal high relative frequency deviation. The limit is 0.1 ppm.
252 (421)
EN/LZT 720 0008 R1A
2001-06-26
© Ericsson Radio Systems AB
— All Rights Reserved —