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
Call Control
Precondition and Initiation
Channel combination supported is defined in section Channel Activation
above /GSM 04.06:5.4.4/.
The Link Establish Indication function is applicable for:
•
SAPI-0 on SDCCH and FACCH
•
SAPI-3 on SDCCH and FACCH/T
There are two cases of establishment as described in /GSM 04.06:5.4.1/:
• Normal establishment
•
Contention resolution establishment
The function is initiated when the RBS receives an SABM from MS.
Description
The following procedure is used by RBS to indicate to BSC that a link
layer on the air interface has been established by an initiative from the
MS. After reception of a first SABM an indication (ESTablish
INDication) is sent to the BSC that a link layer on the radio path has
been established in multiframe mode.
It is the MS that takes initiative of the establishment. This is done when
the mobile, for example, wants to send a measurement report to the
network.
P003016A
RBS
BSC
EST IND
MS
first SABM
UA
Figure 88 Link establish indication
The Normal Establishment is utilized for SAPI-0 links (in conjunction
with a normal assign or handover) as well as for SAPI-3 links (at SMS
point-to-point).
The Contention Resolution Establishment is utilized for SAPI-0 links
only (in conjunction with an immediate assign).
An attempt to establish an SAPI-3 link is rejected (Disconnect Mode
response to MS if the SAPI-0 link is not established).
Messages queued for transmission are lost if the link is re-established.
• Collision cases are treated as specified in Technical Specification /
GSM 04.06/
• Fault handling related to the link establish procedure is in
accordance with /GSM 04.06:5.4.4/
EN/LZT 720 0008 R1A
2001-06-26
199 (421)
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