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OMT Product Description
OMT Product Description
1
1.1
Introduction............................................................................................ 4
Purpose and scope.................................................................................. 4
2
2.1
2.2
2.3
2.4
Product overview................................................................................... 5
General .................................................................................................... 5
OMT......................................................................................................... 6
Remote OMT ........................................................................................... 6
Remote OMT over IP............................................................................... 6
3
3.1
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.2.5
3.3
3.3.1
3.3.2
3.3.3
3.3.4
3.3.5
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.5
3.5.1
3.5.2
3.5.3
3.5.4
3.6
3.6.1
3.6.2
3.6.3
3.7
Functionality .......................................................................................... 8
General .................................................................................................... 8
Graphical user interface .......................................................................... 8
General .................................................................................................... 8
System view ............................................................................................ 9
Cabinet view .......................................................................................... 10
Radio view ............................................................................................. 10
Object view ............................................................................................ 11
RBS communication .............................................................................. 12
General .................................................................................................. 12
OMT....................................................................................................... 12
Remote OMT ......................................................................................... 13
Remote OMT over IP............................................................................. 13
Data sent between OMT and RBS ........................................................ 13
RBS configuration.................................................................................. 13
General .................................................................................................. 13
Create an IDB ........................................................................................ 14
Update the IDB ...................................................................................... 14
Sending the IDB to the RBS .................................................................. 17
Miscellaneous ........................................................................................ 17
RBS maintenance.................................................................................. 18
General .................................................................................................. 18
Display functions ................................................................................... 18
Monitors ................................................................................................. 19
Miscellaneous ........................................................................................ 21
Wizards.................................................................................................. 22
General .................................................................................................. 22
RBS configuration wizard ...................................................................... 22
Read support information wizard ........................................................... 22
Online help ............................................................................................ 22
4
4.1
4.2
4.3
4.3.1
4.3.2
Compatibility........................................................................................ 24
OMT-RBS compatibility ......................................................................... 24
OMT-IDB compatibility........................................................................... 24
OMT PC requirements........................................................................... 24
SW requirements ................................................................................... 24
HW requirements................................................................................... 25
5
5.1
5.2
5.3
New functionality in the latest releases............................................. 26
BSS 06A ................................................................................................ 26
BSS R12 ................................................................................................ 26
BSS R11 ................................................................................................ 27
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OMT Product Description
6
Abbreviations....................................................................................... 28
7
References ........................................................................................... 29
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OMT Product Description
1
Introduction
1.1
Purpose and scope
The purpose of this document is to describe and give a general overview of the
products in the OMT product family. The products are OMT, Remote OMT and
Remote OMT over IP.
This version of the product description contains functionality up to BSS release
R12.1.
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OMT Product Description
2
Product overview
2.1
General
All products in the OMT product family contain functionality for configuration and
fault localization of RBS 2000 base stations. The functionality is needed for RBS
2000 configuration and greatly simplifies the work at RBS 2000 fault localization.
The OMT products have the same functionality. The only difference between the
products is where you connect the product for communication with an RBS 2000.
OMT is connected to the OMT port on the RBS 2000.
Remote OMT is connected to an ETC4 or ETC5 device on a BSC.
Remote OMT over IP is connected to a TCP/IP network, to which BSCs also are
connected.
Remote OMT over IP
TCP/IP Network
STOC
STOC
STOC
ETC
ETC
ETC
BSC
BSC
BSC
Remote OMT
E1 or T1
Network
E1 or T1
Network
E1 or T1
Network
OMT port
OMT port
OMT port
OMT port
OMT port
OMT port
RBS
2000
RBS
2000
RBS
2000
RBS
2000
RBS
2000
RBS
2000
OMT
Figure 1 OMT product overview
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OMT Product Description
2.2
OMT
The OMT is used to perform operation & maintenance for RBS 2000 base stations
on RBS site.
The OMT is installed on a standard PC, i.e. no extra HW is required for the OMT. It
is connected to the OMT port on an RBS 2000 for communication with the RBS.
The OMT contributes with:
2.3
•
The time for configuration and installation of an RBS is minimized.
•
The time for fault localization is minimized.
•
Minimizing user mistakes on site during site configuration.
Remote OMT
Remote OMT makes it possible to perform operation & maintenance for RBS 2000
base stations from BSC site. The Remote OMT is used as a complement to the
OMT.
The Remote OMT is installed on a PC, with an extra card called Thor-2. Remote
OMT is connected to an E1 or T1 interface on a BSC for communication with an
RBS. One dedicated timeslot is used for the communication between Remote OMT
and RBS.
The Remote OMT makes it possible to:
2.4
•
Retrieve detailed information about an RBS 2000 remotely from a BSC site.
•
Perform fault localization of an RBS 2000 remotely from a TCP/IP network
connecting BSCs. This means that it will be easier to prepare for a site visit
and it will be possible for experts to remotely guide service personnel at site.
•
Perform "hardware reset" of an RBS 2000 remotely from a BSC site.
Remote OMT over IP
Remote OMT over IP makes it possible to perform operation & maintenance for
RBS 2000 base stations from anywhere on a TCP/IP network connecting the
operators BSCs. The Remote OMT over IP is used as a complement to the OMT.
The Remote OMT over IP is installed on a PC, with a network board (Ethernet
board). Remote OMT over IP is connected to the TCP/IP network that connects the
operators BSCs. The communication between Remote OMT and RBS shares
timeslot or part of timeslot with SO CF.
Remote OMT over IP makes it possible to:
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OMT Product Description
•
Retrieve detailed information about an RBS 2000 remotely from a TCP/IP
network connecting BSCs.
•
Perform fault localization of an RBS 2000 remotely from a TCP/IP network
connecting BSCs. This means that it will be easier to prepare for a site visit
and it will be possible for experts to remotely guide service personnel at site.
•
Perform "hardware reset" of an RBS 2000 remotely from a TCP/IP network
connecting BSCs.
Benefits with Remote OMT over IP compared to Remote OMT:
•
A whole time slot does not have to be allocated for OMT signaling. The
signaling is embedded in the LAPD signaling.
•
It is much easier to establish a connection for the OMT signaling because it
is not needed to set up a path in the transmission network. Access to an IP
network is the only thing that is needed.
•
OMT functionality can be performed from many remote sites (from anywhere
with a TCP/IP connection).
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OMT Product Description
3
Functionality
3.1
General
Functions are initialized by selection in the graphical user interface.
Some functions contain communication between OMT and RBS, while other
functions don’t.
Functionality without OMT-RBS communication can be used without a connection to
an RBS. This makes it possible to prepare a site visit and analyze output after the
site visit. This means reduced time spend on site.
3.2
Graphical user interface
3.2.1
General
The graphical user interface consists of:
•
Main window with
- menus
- a left pane dedicated for views
- a right pane dedicated for display windows
- a toolbar with most frequently used functions
- a status bar.
•
Different views of the managed RBS 2000 configuration. Each view
contains selectable objects. Only one view is displayed at the same time.
•
Display windows that give the user information about the managed RBS
2000 configuration. Most of these windows are displayed in the right pane of
the main window. The display windows that are not display there are display
as Notepad windows.
•
Dialog windows that are displayed when the OMT needs input from the
OMT user. These windows are displayed on top of the Main window.
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OMT Product Description
Figure 2 Main window and system view
The graphical user interface allows the user to work either object oriented or
function oriented.
Object oriented way of working means that an object in a view is selected and after
that a function is chosen for the selected object. Function oriented way of working
means that a function is selected in the main window menu and after that an object
is chosen.
The object-oriented way of working and the toolbar makes it possible for the user to
work quickly.
The function-oriented way of working makes it easy to find functions.
3.2.2
System view
The system view give the user a mean to access objects that represents high level
system functions, such as the RBS and the IDB.
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OMT Product Description
3.2.3
Cabinet view
The cabinet view helps the user to localize the position of RUs in the RBS. It also
gives accessibility to a number of RUs. Frequency band for TRUs and CDUs is
indicated in the view.
The cabinet view is also useful when verifying that the IDB describes the RBS.
When using Remote OMT or Remote OMT over IP, the cabinet view can give the
user a feeling of security that the user is connected to the correct RBS.
Figure 3: Cabinet view for RBS 2106
3.2.4
Radio view
The radio view gives the user a view of the radio transmission paths of the RBS. It
also gives accessibility to radio related RUs. Frequency band for TRUs and CDUs is
indicated in the view.
It’s possible to enable indication of faulty RUs in the view. Faulty RUs are marked
with red color. This is very useful when performing fault localization of passive RUs,
such as cables, since passive RUs don’t have any fault LED.
The radio view is also very useful when verifying that the IDB describes the RBS.
When using Remote OMT or Remote OMT over IP, the radio view can give the user
a feeling of security that the user is connected to the correct RBS.
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OMT Product Description
Figure 4 Radio view
3.2.5
Object view
The object view is a Windows Explorer look-a-like view with all OMT objects in a
hierarchical list. It gives the user a possibility to browse around, sort and select any
object.
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OMT Product Description
Figure 5 Object view
3.3
RBS communication
3.3.1
General
To enable functions with OMT-RBS communication a communication link must be
established. The communication link is established in different ways for the different
OMT products. The transmission speed (bandwidth) also differs between the OMT
products.
3.3.2
OMT
A communication link between OMT and an RBS is very easily established by
1) Physically connect the OMT PC with the OMT port on the RBS using an OMT
cable.
2) Selecting the connect function in OMT GUI. No parameter has to be entered.
The transmission speed, on the link, is 115.2 kbit/s. This enables fast OMT
functions.
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OMT Product Description
3.3.3
Remote OMT
A communication link between Remote OMT and an RBS is established by
1) Physically connect the Remote OMT PC with an ETC4 or ETC5 device on the
BSC that controls the RBS using a Remote OMT cable.
2) Setting up a semi-permanent connection in the BSC and allocating an Abis
timeslot for Remote OMT signaling. This is done by enter MML commands in the
BSC. See the OPI for Remote OMT.
3) Selecting the connect function in Remote OMT GUI. A timeslot and a TEI value
are entered in the OMT GUI.
The transmission speed, on the link, is 64 kbit/s.
3.3.4
Remote OMT over IP
A communication link between Remote OMT over IP and an RBS is established by
1) Physically connect the Remote OMT over IP PC to the TCP/IP network that
connects the operators BSCs using a Remote OMT over IP cable.
2) Enable the Remote OMT over IP feature in the BSC and open the BSC for a
Remote OMT over IP client. This is done by enter MML commands in the BSC. See
the OPI for Remote OMT over IP.
3) Selecting the connect function in Remote OMT over IP GUI. An IP address and a
TG identity value are entered in the OMT GUI.
The transmission speed, on the link, is 8-64 kbit/s dependent on how the Remote
OMT over IP timeslot is configured from the BSC.
3.3.5
Data sent between OMT and RBS
To make OMT functions fast and to reduce the risk that Remote OMT over IP
signaling disturbs OML and RSL signaling transferred data is compressed for
functions that send a lot of data. One example is the IDB that’s transferred when
using the Read IDB and Install IDB functions. Another example is the RBS log that’s
transferred when using the Display RBS log function.
3.4
RBS configuration
3.4.1
General
To configure an RBS 2000 the OMT is needed.
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OMT Product Description
When configuring an RBS the OMT user describes the RBS and how it shall be
used and then sends the description to the RBS. The RBS stores the description in
persistent memory.
The description of the RBS and how it shall be used is called IDB (Installation Data
Base).
An IDB is created with the OMT function “Create IDB”. The created IDB contains
default values for changeable configuration parameters. If needed, these default
values are changed to correct values with “Define” functions.
The IDB is sent to the RBS with the OMT function “Install IDB”.
3.4.2
Create an IDB
Values for the following parameters are chosen when creating an IDB with the
function “Create IDB”:
•
Transmission interface type
•
For each cabinet:
- Cabinet type
- Power system
- Climate system
•
For each antenna sector:
- Frequency
- CDU type
- Presence of duplexer
- Presence of TMA
- TX combining/RX sharing configuration
- Number of TRXs per antenna sector
Values for the parameters above are chosen in option boxes in different Create IDB
windows.
In each of these windows they are chosen in the order from top to bottom of the
window. When selecting a parameter value, selectable values for the parameter
below are filtered so only valid values can be selected. This reduces the number of
selectable parameter values, which makes it easier to select correct value.
About 50.000 different IDBs can be created with the OMT.
3.4.3
Update the IDB
The following parameters can be changed using “Define” functions:
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OMT Product Description
!
Transmission parameters
The transmission is described by entering values for following parameters:
- TEI for DXU
- Transmission interface type
- Spare bits
- CRC-4
- Available synchronization source
- Network topology
- LBO
- FDL use
- PCM receiver sensitivity
!
TNOM parameters
To enable DXX support in an RBS, the TNOM information in the IDB must be
updated. The RBS node identity in the DXX network and the timeslot that shall
be used for DXX communication with the RBS is specified.
!
External alarms interface parameters
Equipment that is connected to the external alarms interface for supervision is
described by these parameters. It is possible to connect equipment for external
alarms and antenna related faults.
!
Hardware information for passive RUs
Product number, hardware revision, serial number and a free text for passive
RUs can be updated with this function. The hardware information is displayed
in the inventory list in OMT.
!
Hardware information for RBS 2106, RBS 2106i, RBS 2107, RBS 2112,
RBS 2206 and RBS 2207
Product number, hardware revision, serial number and a free text for the
cabinets above is updated when a faulty backplane is replaced. The hardware
information is displayed at the Operation and Maintenance Center and in the
inventory list in OMT.
!
RBS identity
Name and description for an RBS can be defined. If RBS identity has been
defined for the RBSs in the network it can be used to verify that Remote OMT
or Remote OMT over IP is connected to correct RBS.
!
VSWR limits for antennas
VSWR class 1 and VSWR Class 2 limits can be defined with these parameters.
VSWR limits that are accurately defined and adjusted to the specific RBS will
enable earlier detection of antenna system related problems.
!
Loss for cables and feeders
Loss values for cabinet external cables and feeders can be defined. The RX
path loss is needed to calibrate the TRX and thereby optimize the RF
performance of the RBS. The total RX path loss is also needed to calculate
RXLEV at the antenna.
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OMT Product Description
!
ALNA/TMA parameters
An ALNA/TMA is described by entering values for following parameters:
- TMA type (GSM TMA, GSM By-pass TMA, TDMA TMA, TDMA By-pass TMA
or externally powered TMA)
- TX group delay
- RX group delay
- Loss
- RX frequency range
- Current supervision limits
!
TF compensation value
This parameter is used to specify the TF compensation value of a slave RBS in
a TG cluster.
!
Delay for ESB
The ESB Delay parameter defines the delay of the synchronization signal in the
ESB cable from master RBS to a slave RBS in the same TG Cluster. If this
parameter is defined it overrides the automatically measured value.
!
Delay for feeders
The delay parameter specifies the RF signal delay in the feeder. The feeder
delay is part of the total TX path delay and the total RX path delay in the RBS.
The total TX path delay is needed to synchronize the TX burst transmission of
all TRXs. The total RX path delay is needed to calibrate the timing in the
receiver in the TRX.
!
GPS parameters
These parameters must be defined when a GPS receiver is used for GPS
frame synchronization. The parameters are:
- GPS RX delay
- GPS RX DXU delay
!
TF holdover mode
This parameter makes it possible to specify if an RBS, configured to slave,
should be in Intra-cell or Inter-cell hold over mode.
!
Presence of RUs
This parameter specifies if RUs, that can vary in number, are present or not
present.
!
System voltage
This parameter is used to obtain optimal charging voltage for used batteries.
System voltage that are accurately defined and adjusted to the used batteries
will increase the battery lifetime.
!
Battery parameters
These parameters are used for optimal usage of used batteries. Battery
parameters that are accurately defined and adjusted to the used batteries will
increase the battery lifetime.
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OMT Product Description
!
3.4.4
Battery backup time test parameters
With these parameters the battery test feature is configured. The test checks
the status of connected batteries and sends a fault report to the BSC if batteries
are bad. The battery test feature gives information that is useful when planning
battery replacements.
Sending the IDB to the RBS
To perform the last step in OMT configuration of an RBS, i.e. to send an IDB to an
RBS for storage and usage, the function “Install IDB” is used. When the Install IDB
function is initiated the OMT first performs a consistency check before starting
sending the IDB to the RBS. The IDB is compared with the RBS HW information that
can be retrieved from the RBS. The IDB and RBS consistency check reduces the
risk that an IDB that doesn’t suit the RBS is installed.
After execution of the Install IDB function the OMT and the RBS have the same IDB,
i.e. the same description of the RBS. This enables maintenance functionality in the
OMT.
3.4.5
Miscellaneous
Some miscellaneous RBS configuration related functions are listed below.
•
Reading the IDB from the RBS
The IDB stored and used by an RBS can be read by the OMT with the
function “Read IDB”. After execution of the Read IDB function the OMT and
the RBS have the same IDB, i.e. the same description of the RBS. This
enables maintenance functionality in the OMT.
•
IDB file handling functions
The function Save IDB makes it possible to save the IDB in OMT to a disk.
The function Open IDB makes it possible to open an IDB stored on a disk.
•
Field configurations functions
The thought with the field configuration functionality is that the personnel at
the office create IDBs, which technicians shall use in the field, and save
them as field configurations. Information can be attached to field
configuration. To configure an RBS the field technician opens the correct
field configuration, perhaps changes some parameter using define functions
and then installs the field configuration. The functions are:
- Field configuration – Attach information
- Field configuration – Display information
- Field configuration – Open
- Field configuration – Save
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OMT Product Description
•
Site specific data functions
Site specific data is the data that is entered in define functions. The sitespecific data functions make it possible to reuse entered site-specific data
when creating a new IDB. The functions are:
- Site Specific Data – Display
- Site Specific Data – Export
- Site Specific Data – Import
3.5
RBS maintenance
3.5.1
General
The maintenance functionality gives the operator help when performing fault
localization and preventive maintenance.
3.5.2
Display functions
Some miscellaneous display functions are listed below.
•
Display Battery Backup Time Test Result
Result of the executed battery tests is displayed. Measured backup time is
displayed.
•
Display Battery Log
Information about how the batteries have been handled is displayed. This
information consists of:
- Charging mode
- System voltage
- In service date
- Operating temperature
- Operating float charging
- Discharge information
- Maximum disconnected time
•
Display Detected HW Information
All HW that the RBS SW can detect is displayed. This information is useful
when creating an IDB.
•
Display Faulty RUs
Display all RUs that are pinpointed as faulty in the RBS. This information is
useful during fault localization.
•
Display Log
Reads SW log from the RBS. The SW log is not intended for the operator.
It’s intended for Ericsson when helping an operator with an RBS problem.
•
Display Paging Queue Status
Information about paging queues is displayed.
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OMT Product Description
3.5.3
•
Display RBS software download
Gives information about ongoing RBS SW load from BSC. This information is
useful, for field technicians on RBS site, when waiting for the RBS SW
download to be completed.
•
Display RBS SW information
SW versions in RAM and on flash memory are displayed.
•
Display Status
Gives information about LED status and fault status for RUs. This
information is useful when the LED indicators on the RBS are not visible.
Monitors
Monitors are useful when trouble shooting or when more information about the RBS
status is wanted. The monitors that are available in OMT are listed below.
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OMT Product Description
•
Radio related monitors:
- TMA Current
- TMA Voltage
- RF Loop Test
- Absolute Radio Frequency Channel, RX
- Diversity
- Frequency Specifier Marker
- ALNA Power Supply Current
- ALNA Power Supply Voltage
- ESB Distribution
- GPS Position
- GPS Satellites
- GPS Status
- GPS Time
- Phase Difference Error, Optional
- Adjustment Value, Optional
- Phase Difference Error
- VCO Control Value
- Holdover Time
- Current FS Offset
- Chosen Synch Source
- TU Internal State
- TF Configuration – Compensation
- TF Configuration – FS Offset
- TF Configuration – Mode
- TF Configuration - Sync Source
- Absolute Radio Frequency Channel, TX
- BCC Filler Pattern
- Filler Type
- Filler Power
- Nominal Output Power
- Forward Power at CDU output
- Forward Power at TRX output
- Reflected Power at CDU output
- Reflected Power at TRX output
- VSWR at TX Antenna
•
Transmission related monitors:
- CON Configuration
- IS Configuration
- Line Attenuation
•
Traffic related monitors:
- Supervision SDCCH
- Supervision TCH
- TS Channel Combination
- Diversity Supervision Measurement
- TSSP Configuration
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OMT Product Description
3.5.4
•
Power related monitors:
- BDM Information
- BFU Information
- PSU Information
- BFU Total Current
- BFU Average Voltage
- DC System Voltage
- PSU Total Current
- PSU Average Voltage
•
Climate related monitors:
- Cabinet Internal Humidity
- Cabinet Internal Temperature
•
Operation and maintenance related monitors:
- MO Fault Reports
- ARAE Fault Status
- External Alarm Status
- RBS Software Down Load
- Antenna Hopping Table List
Miscellaneous
Some miscellaneous functions are listed below.
•
Check IDB
This function performs a HW and IDB consistency check and an IDB check.
The information that is given to the user is “found HW and IDB
inconsistencies”, “IDB type” and “IDB fault status”. Check IDB is useful when
performing RBS trouble shooting and when planning IDB replacement.
•
Load Flash Card
Make it possible to perform SW load to an RBS with flash card. This function
can be used to reduce the time spent on site during RBS installation.
•
Calibrate Oscillator
Used to calibrate the optional oscillator on DXU-01 and DXU-03.
•
Change Local/Remote State.
To be able to install an IDB into an RBS the DXU must be in local state. This
function is used to enable installation of an IDB into an RBS from Remote
OMT or Remote OMT over IP.
•
Reset
Performs a HW reset, which can cure some RBS faults. If Remote OMT or
Remote OMT over IP is used these RBS faults can be corrected without a
site visit.
•
Set CDU Power Supervision
CDU output power supervision can temporarily be disabled when needed to
perform tests of an RBS.
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OMT Product Description
•
Set Measurement Reports On/Off
Measurement reports can temporarily be disabled when needed to perform
tests of an RBS.
•
Set SSQIU On/Off
SSQIU can temporarily be disabled when needed to perform tests of an
RBS.
3.6
Wizards
3.6.1
General
A wizard is a “high-level” OMT function, which consists of sequence of ordinary
OMT functions. The purpose with the wizards is to make it easier to perform a task
with the OMT and to minimize the risk for making mistakes when performing the
task.
3.6.2
RBS configuration wizard
This wizard guides the user through each step that’s needed to configure an RBS. It
eliminates the risk that an important step is forgotten when configuring an RBS with
OMT.
3.6.3
Read support information wizard
This wizard reads all RBS information that Ericsson needs to be able to give help to
an operator with some RBS 2000 problem. The wizard read SW logs, fault log and
IDB from the RBS. The user only has to initiate the wizard and wait until all
information has been read. There’s no risk that the user forgot to read some part of
the needed RBS information.
3.6.4
Execute support script
To be able to support an operator efficiently Ericsson support (PLMBTS) sometimes
need more information about the RBS than is possible to retrieve with the OMT
today. This wizard makes it possible to get the needed RBS information.
3.7
Online help
The online help describes all OMT functionality.
The online help is context sensitive, which means that it’s possible from an OMT
window with one user action open the online help chapter that describes the
window.
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OMT Product Description
The define parameters that are entered when configuring an RBS are described in
detail. This reduces the need for RBS manuals when configuring an RBS with OMT.
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OMT Product Description
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Compatibility
4.1
OMT-RBS compatibility
A specific version of OMT SW supports both older and newer versions of the RBS
SW.
A specific version of RBS SW supports both older and newer versions of the OMT
SW.
When a specific OMT version is used with an older version of the RBS SW then the
functionality level of the RBS SW is available.
When a specific OMT version is used with a newer version of the RBS SW then the
functionality level of the OMT SW is available.
4.2
OMT-IDB compatibility
A specific version of OMT SW supports both older and newer IDB versions.
When a specific OMT version is used with an older IDB version then the functionality
level of the IDB is available.
When a specific OMT version is used with a newer IDB version then the functionality
level of the OMT SW is available.
4.3
OMT PC requirements
4.3.1
SW requirements
The following operating systems are supported:
•
Microsoft Windows 2000
•
Microsoft Windows XP
Administrator rights on the computer are required to install and use the OMT
program.
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OMT Product Description
4.3.2
HW requirements
•
Processor that fulfils the operating system requirements. For good
performance it's recommended to use a Pentium 4-compatible processor, at
least 1 GHz or more powerful.
•
At least 128 Megabytes of RAM
•
At least 50 Megabytes free hard disk space
•
1 serial port (To be able to connect an OMT PC with only USB ports and no
serial port, an USB-serial port adapter is needed)
•
Mouse (optional)
•
A VGA graphic card
•
A Thor-2-ISA card with a free ISA-bus slot or a Thor-2-PCI card with a free
PCI bus slot (Remote OMT)
•
Printer (optional)
•
CD-ROM
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OMT Product Description
5
New functionality in the latest releases
5.1
BSS 06A
Improved description of parameters:
To minimize the risk to enter wrong values on IDB parameters in the OMT the
following are described in the OMT help for each parameter that is handled:
•
What the parameter is used for
•
When the parameter must be defined
•
How to find out which parameter value to set
•
What happens if wrong parameter value is used?
Improved usage of OMT-RBS transmission bandwidth:
The bandwidth needed for OMT to RBS communication is reduced and optimized by
compressing the information for functions that send a lot of data between OMT and
RBS.
Check IDB:
This new function checks the IDB in the RBS and gives the user information about
the IDB. The information that is given to the user is IDB type and IDB fault status.
Check IDB is useful when performing RBS trouble shooting or when planning IDB
replacement.
More RBS information for support cases:
To be able to support an operator efficiently Ericsson support (PLMBTS) sometimes
need more information about the RBS than is possible to retrieve with the OMT
today. This new functionality makes it possible to get the needed RBS information.
Support for all new RBS 2000 Configurations in BSS 06A:
See GSM/EDGE RBS product program for more information.
5.2
BSS R12
Increased transmission speed:
The transmission speed between a local OMT and an RBS containing DXU-21 is
dynamically increased from 19.2 kB/s up to 115 kB/s.
Improved usage of OMT-RBS transmission bandwidth:
The bandwidth needed for OMT to RBS communication is reduced and optimized by
compressing the information for OMT functions that send a lot of data between OMT
and RBS.
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OMT Product Description
Support for all new RBS 2000 Configurations in BSS R12:
See GSM/EDGE RBS product program for more information.
5.3
BSS R11
Install IDB (Internal Data Base) without change of local/remote state:
Local/remote state for DXU and TRU is stored in the IDB to survive a cold restart of
an RBS 2000. In an IDB created with the OMT, local/remote state is always set to
local. With the earlier implementations of the "install IDB" function, the local/remote
state for TRUs is changed according to the IDB. This means that local/remote state
for TRUs might be changed during "install IDB". In these cases the local/remote
state might have to be changed back by the service technician by pressing the local
button on TRUs. Usage of this new version of the "Install IDB" function will not
cause a change in TRU local/remote state. This will reduce the risk for leaving the
site with TRUs in the wrong state.
RBS SW load indicator in OMT:
An RBS SW load takes 20-30 minutes. During this time LEDs on the RBS 2000 are
the only things that indicate that SW is being loaded. In earlier implementations of
the OMT no progress has been indicated. With this new function it will be possible to
see the RBS SW load progress in the OMT.
Support for externally powered TMAs:
(Tower Mounted Amplifiers) - Support for externally powered TMAs makes it
possible to create an IDB describing an RBS 2000 HW configuration with externally
powered TMAs (i.e. TMAs not powered from the RBS 2000). When configuring an
RBS 2000 the OMT user specifies which type of TMAs that are used; internally
powered GSM TMA, internally powered TDMA TMA or externally powered TMA.
RBS Battery Log:
Gives information about the battery condition. See FAJ 121 619 Battery Log.
RBS Name in OMT:
An operator defined RBS name is possible to store in the IDB using the OMT or
Remote OMT. The name is used to identify the RBS or site according to a naming
convention selected by the operator. The name is stored in the IDB and survives
restart and power failure. The RBS name is visible in the display window for the
RBS object in OMT and as site specific data.
Support for all new RBS 2000 Configurations in BSS R11:
See GSM/EDGE RBS product program for more information.
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OMT Product Description
6
Abbreviations
IDB
OMT
RBS
RU
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Installation Data Base
Operation and Maintenance Terminal
Radio Base Station
Replaceable Unit
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OMT Product Description
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References
Operational Instruction
Remote Operation and Maintenance Terminal, Connect
3/154 31-APT 210 09 Uen
User Description, Remote OMT over IP
240/1553-HSC 103 12 Uen
GSM/EDGE RBS Product Program
1/159 42-FGB 101 097 Uen
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