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
Transmission Interface Handling G.703 2048 kbit/s
• Alarm indication to the remote end (A-bit in time slot 0 equal to
"1")
•
CRC-4 error indicator (E-bit in time slot 0 equal to "0")
Both actions are according to ITU-T recommendations G.704 and G.732.
• Transmission of spare bits (Sa4-Sa8). The spare bits form a fixed
bit pattern (see section Operation and Maintenance below)
Two PCM paths are supported: PCM-A and PCM-B.
47.3.2 Layer 1 Synchronization
Synchronization of layer 1 is either derived from one of the incoming
PCM paths or taken from a free running oscillator. A PCM path
•
with LOF (Loss Of Frame alignment), LOS (Loss Of Signal), AIS
(Alarm Indication Signal) or
•
that is “not available for synchronization” according to a
parameter in RBS DB
cannot be used as reference source.
The synchronization of layer 1 is in one of three states:
1. PCM -A can be used as reference source
PCM -A is selected as the reference source
PCM-A incoming is used to synchronize PCM-A outgoing
PCM-A incoming is used to synchronize PCM-B outgoing.
2. PCM -B can be used as reference source, PCM-A cannot
PCM -B is selected as the reference source
PCM-B incoming is used to synchronize PCM-A outgoing
PCM-B incoming is used to synchronize PCM-B outgoing
3. Neither PCM-A nor B can be used as reference source
The free running oscillator is selected as reference source
The free running oscillator is used to synchronize both PCM-A
and B outgoing.
The default setting of PCM-A and PCM-B is:
PCM-A: “Available for synchronization”
PCM-B: “Not available for synchronization”
The parameters can be modified from OMT. The new setting is
activated immediately. Thus, the updated parameters are used when the
selection of synchronization source is performed.
47.3.3 Supervision of Transmission Faults
The function is initiated during restart of DXU.
The configuration of fault supervision can only be performed when the
AO DP (Digital Path) is in state "Disable". The reporting to the BSC is
352 (421)
EN/LZT 720 0008 R1A
2001-06-26
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