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
Frequency Allocation Support
34 Frequency Allocation Support
The FAS function measures the interference level on a number of
frequencies, specified by the operator. The measurements are performed
on idle channels or idle burst positions.
The TRXC:s execute the FAS function independently of each other
(however all TRXC:s don’t have to be used). Thus it is here described
only how the FAS function works on one TRXC.
FAS measurements can start when the TRXC has been configured with
a list of FAS frequencies. Measurements are performed during one or
several FAS measurement periods.
Each FAS measurement period is started and stopped by Abis O&M
messages. During the FAS measurement period the TRXC shall handle
the measurement of the signal levels, on all specified frequencies, once
every 15:th second and accumulate the result in one histogram for each
frequency.
The result of the measurements is reported on Abis O&M interface on
request as calculated median and percentile values for each frequency.
The number of times each frequency has been measured on is also
reported.
34.1 References
/GSM:05.05/
34.2 Concepts
Percentile value: The proportion of samples in a distribution.
An example: The 90 percentile value for a distribution is the value for
which 90 percent of the samples have a value equal to or less than the
percentile value.
34.3 Functions
34.3.1 FAS configuration
A Frequency List is received on Abis O&M interface containing
maximum 150 frequencies to measure on. The frequencies are coded in
a way that can be interpreted as ARFCN:s with a value ranging from 0
until 1023. This value range is accepted (The BTS can however only
measure on frequencies for which it has capability). The relation
between frequencies and ARFCN:s is specified in /GSM:05.5:1.1/.
The FAS support capability and the number of frequencies transferred
are checked.
All eventually on-going measurements are stopped.
Measurement result are cleared.
34.3.2 Start measurement
FAS measurement will be started by O&M message. Old measurement
results are Optionally cleared.
EN/LZT 720 0008 R1A
2001-06-26
265 (421)
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