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
GPRS, Physical Link Layer
Description
The RBS receives four access bursts and performs demodulation
according to the previously stored channel mode. Channel decoding is
performed according to /GSM:05.03:5.3.1/. The RBS performs the
following PDCH measurements produced per access burst by the
decoder:
•
Burst quality
• Frame quality
• CRC
• Access delay
A PCU Frame is created, consisting of the four decoded access bursts
and the PDCH measurements. The PCU Frame is then transmitted on
Abis Interface.
21.3.4 Continuous Timing Advance Update
Purpose
Continuous Timing Advance Update specifies the functionality for
updating of the timing advance values, using the logical channel
PTCCH/U and PTCCH/D scheduled on PDCH according to /
GSM:05.02/.
Preconditions and Initiation
The function is inititated when a CHANNEL_ACTIVATION message
with element "Activation Type" = Packet Channel is received on Abis
RSL interface.
Description
The RBS receives an access burst on PTCCH/U on air interface. The
access burst is demodulated, decoded /GSM:05.03:5.2/ and the timing
advance value is determined. The timing advance value is updated in
the next PTCCH downlink block following the access burst. PTCCH
downlink block is according to /GSM:04.04:7.4f/.
The RBS performs coding /GSM:05.03:5.2/ and transmits the PTCCH
downlink block on nominal power by four normal bursts on PTCCH/D.
EN/LZT 720 0008 R1A
2001-06-26
215 (421)
© Ericsson Radio Systems AB
— All Rights Reserved —