144184643-EricssonOSS-CNA.pdf

CNA, Cel Cel l ular ular Network Network A dmi dmi nistrati nistration on,, Functi Function on Des Descripti on

FACILITY DESCRIPTION

1 1.1 1.2 1.3 1.4

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155 34-APR 901 0143 Uen B

Introduction Purpose Target Group Prerequisites Typographic Conventions

2 2.1 2.2

Application Unit Overview Preconditions User Categories

3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13

Function Description Information Retrieval Adjustment Fallback Area Handling Log Area Handling Planning Update Consistency Check Predefined Configuration Profiles CNA Management Application Start and Shutdown Information Flow Error Handling Graphical User Interface

4 4.1 4.2

Technical Specification Supported NE Versions Limitations

Glossary Reference List

Copyright

© Copyright Ericsson Ericsson AB 2007. All rights reserved. reserved.

Disclaimer

No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.

Planning, introduction, and tuning of cells is a common and complex operation in a fast growing network. CNA CNA (Cellular (Cellular Network Administration) provides the user with supporting

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CNA, Cel Cel l ular ular Network Network A dmi dmi nistrati nistration on,, Functi Function on Des Descripti on

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tools which make these operations easier and more effective. The main objectives of CNA are as follows: To maintain a comprehensive picture of the cellular network To support a functional view of the cellular network and hide its implementation To reduce the need for user intervention when transferring configuration parameters to the NE NEs s (Network Elements) To provide a user friendly interface To maintain the data in the OSS-RC OSS-RC (Operations (Operations Support System Radio and Core) , in order to minimize the time to access data and the load on the NE NEs s To simplify maintenance and management of the cellular network by input of consistent data to the NE NEs s

This document is intended for users of the CNA CNA application application in OSS-RC OSS-RC..

It is assumed that the reader of this d ocument: is familiar with Sun workstations and window-based computer interfaces is familiar with OSS-RC is familiar with UNIX UNIX command command line interfaces

The typographic conventions for all CPI CPI in in OSS-RC OSS-RC is is found in Reference [2]. [2].

CNA manages cell and cell related data in a GSM CNA manages GSM (Global (Global System for Mobile communication) radio network. This includes functions which support addition of cells, modification of data in existing cells and deletion of cells from the ne twork, for a detailed description see Reference [3]. [3]. The cell The cell related objects and objects and data in the connected MSC MSCs s (Mobile services Switching Centres) and BSC BSCs s (Base Station Controllers) are controlled through a number of MO MOs s (Managed Objects) in CNA CNA keeping keeping the data in persistent p ersistent storage. The user manipulates the parameters of the MO MOs s using a user friendly interface when adding to or changing the logical configuration of the cellular network. The corresponding information in the valid area can be adjusted when the data of an object in the network has been changed in CNA CNA.. The user may also use the GCC GCC (Graphical (Graphical Cell Configuration) application to display the network model superimposed on a geographical map provided by GNIP GNIP (Geographical (Geographical and Logical Network Information Presentation), provided that GCC GCC has has been connected to both CNA and CNA and GNIP GNIP.. All changes to the network are initially performed in a planned area, which is later used to update the valid area and the real network.


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CNA, Cellular Network Administration, Function Descripti on

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The updat e function compiles the parameters of the MOs to AXE commands. The parameters of the NEs (Network Elements) are updated when the commands are transferred to them. The consi st ency check function checks the MOs for consistency in order to minimize errors in the parameter settings of the cellular network. The MOs can also be adjusted with the data in the network. The On-Line Help provides brief operating instructions. It also contains warnings of risks, explanations of abbreviations, short-cuts and references to more general information. CNA comprises the following functions and tasks: Information Retrieval Adjustment Fallback area handling Log area handling Planning Update Consistency check CNA Management Application Start and Shutdown Information flow Error handling Graphical User Interface Command Line Interface By means of the CNACMI (CNA Command Line Management Interface), it is possible for the user to perform configuration management and job management tasks. For more information about CNACMI execute the command man CNACMI . By means of CNAUICMI (CNA User Interface Command Line Management Interface), it is possible for the user to start application window CNA Table without starting the CNA application. For more information about CNAUICMI execute the command man CNAUI CMI

The following needs to be true before CNA can be used: All cells belonging to an MSC and the Ericsson BSCs connected to the MSC must be managed by the same OSS-RC All cell names, BSC names and MSC names managed by CNA must be unique The name of a certain cell must be the same in all MSCs and BSCs where data concerning it exists GPI (GERAN Plugin) and BSM (Base Station Management) need to be installed to support synchronization of the CNA valid area and ONRM (Object Network Resource Model) Application management user actions require that the user is an application


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administrator

A CNA user is granted authority for one user category, only. CNA uses the aut hor i t y dat abase to check authorities. The authority management is taken care of by TSS (Telecom Secruity Services). The TSS checks that the user is authorized to run, for example, an updat e or an adj us t ment job. The operator must receive an authority profile from th e authority database in order to prevent unauthorized access to certain functions. The database contains the definition of the three subprofiles: Aut hor i t y Type , Act i vi t y Set , and Ti me Pr of i l e . A user may have authority to run CNA updat e and adj us t ment jobs without having authority to use the MML commands for the current job. In Table 1 this is identified by the symbol (x), indicating that the authority to use MML commands may be granted to some operators but not to others. The following user categories are supported: SYSADM

System Administrator

APPLADM

application administrator

NWOPE

Network Operator

OPE

Operator

ASSOPE

Assistant Operator

The system administrator has full access to all functions and processes in the system, and is the system body providing other users access as required and appropriate. Table 1

CNA User Category Privileges

Action

CNA user categories

(x) = Authority may or may not be granted

Assistant Operator

Operator

Network Operator

Application Administrator

Information Retrieval

x

x

x

x

Consistency check

x

x

x

x

x

x

x

Terminate and delete own consistency check jobs Terminate and delete consistency check jobs owned by other users

x

Plan a network

x

x

x

Create

x

x

x


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Planned area Load Planned area

x

x

x

Fallback area handling

x

x

x

Log area handling

x

x

x

Lock area

x

x

x

Unlock own area

x

x

x

Unlock all areas

x

update the network

x

x

Terminate and delete own update job

x

x

Terminate and delete update jobs owned by other users

x

Adjust the network Terminate and delete own adjustment jobs

x

x

x

x

Terminate and delete adjustment jobs owned by other users Profile object handling

x

x

x

x

CNA Administration

x

Setting and changing CNA preferences

x

Clear locks of the valid area and MSCs, BSCs, RNCs, or foreign cells in the valid area which have failed to be released due to OSS-RC system errors

x

Switch on and off MML command authority

x


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checking Use MML commands

(x)

(x)

x

The I nf or mat i on Ret r i ev al function is used to examine the cellular network structure and data as stored in the valid area. This function includes the following: View the valid area through the GCC and inspect the relations between objects in the valid area Inspect the properties of the MOs in the valid area Print out the properties of the MOs in the valid area or save them in a file

The adjustment function is used to compare the valid area w ith the cellular network and to adjust the valid area model. The valid area and the real network are compared when an adjustment job starts. The valid area is then updated with the differences found and thus becomes a true copy of the network. The following objects are not adjusted: foreign cells, RNC (The Radio Node Controller NE in the UMTS network), UTRAN (UMTS Terrestrial Radio Access Network) cell, MSC of version OTHER, BSC of version OTHER, and subordinate objects to these objects. It is possible for the user to: Adjust the MOs in the valid area with data in the network Adjust on valid area level, see Section 3.2.1 Adjust on MSC level, see Section 3.2.2 Adjust on BSC level, see Section 3.2.3 Adjust on cell level, see Section 3.2.4 Adjust on cell level on one or several cells at a time Adjust on all levels with check only. The differences are listed but no data is adjusted in valid area Start adjustment of the valid area immediately or with delayed activation Select if the job should be run once or repeatedly Delete queued, terminated, failed and completed adjustment jobs Delete several adjustment jobs simultaneously Terminate an active adjustment job Open an adjustment job report window When starting an adjustment of the valid area, decide to terminate the adjustment job or continue with the next command in the event of error messages from the NEs. Occurring errors are saved in a log file


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Select whether the valid area should be saved in a fallback area (see Section 3.3 ) before the adjustment begins Supervise the status of a running adjustment job in a separate window, from which reports may be viewed and printed Set default values for adj us t ment j ob options Synchronize the CNA valid area and ONRM using a command line interface (optional) The adjustment function performs the following: Marks MOs in the valid area which have been changed with the date and time of the adjustment Marks new areas with the user ID and the date and time of creation Changes the user ID and the date and time indication for an area in which an object has been changed. This concerns all areas Creates and executes the AXE commands needed to read the data in the NEs Retries sending commands to the NE if the command is not executed on the first try due to FUNCTI ON BUSY. The number of retries and the intervals are defined as system parameters. The user can select if the adjustment shall terminate or continue with the next NE if the limit is reached Terminates the adjustment or continues with the next NE (user selectable) and issues an error message if an NE indicates that cell data changes are in progress d uring collection of data from the network Terminates the adjustment or continues with the next command (user selectable) for the current NE in case of an error reply from the current NE. The error is saved in a log file Generates a report which lists all the differences between the valid area and the network. The report can be displayed before, during or after the adjustment has been completed. It can also be printed and saved in a file when the adjustment is completed. The report includes the printout commands which have been executed. Any error replies from the NEs are also included Notifies the user when an adjustment is finished or terminated Runs and completes without needing any manual assistance 3.2.1

Adjustment of the Valid Area

The valid area is the current selection in CNA, the following is then adjusted: all MSCs belonging to the valid area with the NE data, unless the MSC is of version OTHER. See Section 3.2.2 all BSCs belonging to the valid area with the NE data, unless the BSC is of version OTHER. See Section 3.2.3 3.2.2

Adjustment of the MSC

An MSC is the current selection in CNA, the following is then adjusted: the MSCs with the NE data Inner cells belonging to the MSC and their data with the NE data outer cells belonging to the MSC and their data with the NE data


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The following item may be adjusted separately with the NE data: AXE file sizes 3.2.3

Adjustment of the BSC

A BSC is the current selection in CNA, the following is then adjusted: the BSCs with NE data internal cells belonging to the BSC and their data with NE data neighbor relations belonging to the BSC and their data with NE data UTRAN neighbor relations belonging to the BSC and their data with NE data Overlaid subcells belonging to the BSC and their data with NE data Channel groups belonging to the BSC and their data with NE data External cells belonging to the BSC and their data with NE data UTRAN external cells belonging to the BSC and their data with NE data Transceiver groups belonging to the BSC, and the internal cells or the channel groups to which they are connected, with NE data Priority profiles belonging to the BSC and their data with NE data Sites belonging to the BSC with NE data Note: In CNA preferences it is chosen whether the EMG (Extension Module Group) or the RSITE (RBS site) name should be used as site names in the valid area (application administrator only) The following group of items may be adjusted separately with NE data: The state (active, halted) of internal cells and channel groups in the BSC AXE file sizes Optional features 3.2.4

Adjustment of a Cell

An internal cell is the current selection in CNA, the following is then adjusted: the internal cell data with NE data corresponding inner cell data with NE data neighbor relations belonging to the internal cell and their data with NE data UTRAN neighbor relations belonging to the internal cell and their data with NE data overlaid subcells belonging to the BSC and their data with NE data channel groups belonging to the internal cell and their data with NE data The state (active, halted) of the internal cell and channel groups belonging to the internal cell

The fallback area handling provides the means of restoring the data in the network to the


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contents it had at the time of creating the fallback area. It is possible for the user to: List all fallback areas Back up the data in the valid area in a fallback area. There may be several fallback areas Initiate a backup to a fallback area directly or before an adjustment of the valid area or an update with a planned area is started Inspect the relations between objects in the fallback areas Inspect the properties of a fallback area and its MOs Print lists of MOs in the fallback areas and their properties or save them in a file Create a planned area which is updated with the differences between a fallback area and the valid area. An update with this planned area restores the network to the state it was in when the fallback area was created Remove fallback areas which have been locked by the current user

The log area handling provides the means of storing BSCs, internal cells and their corresponding channel groups in a log area. Log areas are created through the RNR (Radio Network Recording) application. It is possible for the user to: List all log areas Inspect the properties of a log area and the properties of the MOs in the area Print lists of MOs and their properties in a log area or save them in a file Remove log areas when they are locked by the current user

The Planning function is used to create, modify, and delete MOs in a planned area. A planned area is a model of the valid area where changes can be tested before they are applied to the network. The planned area does not affect data in the valid area and the network until the user updates the valid area with the planned area. 3.5.1

General Planning of Objects

When doing ordinary planning such as creating new objects the following can be done: Create planned areas Create, modify and delete MOs in a planned area which is locked by the current user Lock and load a planned area at creation Make a copy of a planned area and its contents List all planned areas View geographical location of cells or sites using GNIP


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Inspect the properties of a planned area and the properties of the MOs in the area Print lists of MOs and their properties in a planned area or save them in a file Add the following objects (all objects) to a planned area: MSCs, inner cells, outer cells, BSCs, sites, transceiver groups, internal cells, external cells, UTRAN external cell, overlaid subcells, channel groups, neighbor relations, UTRAN neighbor relation, RNCs, UTRAN cell, foreign cells, and priority profiles Set initial parameter values for added objects according to Section 3.5.6 Mark the following objects for removal from the valid area and the network when they are updated with a planned area: inner cells, outer cells, internal cells, external cells, UTRAN external cells, overlaid subcells, channel groups, neighbor relations, UTRAN neighbor relations, and priority profiles Mark the following objects for removal from the valid area when it is updated with a planned area (there is no communication between these MOs and the NEs): transceiver groups, foreign cells, objects under a BSC of version OTHER, RNC, and UTRAN cell Clear removal marks in the planned area in the valid area of the following objects: inner cells, outer cells, transceiver groups, internal cells, external cells, overlaid subcells, channel groups, neighbor relations, foreign cells, priority profiles, UTRAN external cell, UTRAN neighbor relation, RNC, and UTRAN cell Remove the following objects (all objects) from a planned area if they do not exist in the valid area: MSCs, inner cells, outer cells, BSCs, sites, transceiver groups, internal cells, external cells, overlaid subcells, channel groups, neighbor relations, foreign cells, priority profiles, UTRAN external cell, UTRAN neighbor relation, RNC, and UTRAN cell Note: MSCs and BSCs must be added and removed using the ARNE (Add Remove Network Element) application. sites are added and removed using the BSM application and adjusted into CNA

Connect and disconnect channel groups from a transceiver group Remove planned areas locked by the current user 3.5.2

Profile Object Handling

To make it easier to created several identical or almost identical objects pro file objects can be used. A profile object is a template object that stores all parameters that should be identical for several objects. It is possible for the user to: Create, delete and edit internal cell, BSC, neighbor relation and overlaid subcell profile objects Reset modified and possible validated, but not yet applied, p arameter values to the value they had before they were modified Print lists of profile objects and their proper ties or save them in a file Select whether to see all profiles or to see all profiles for one type of profile object only Set a parameter in a profile object to u nd ef i ne d Note:

Profile objects do not exist for objects of version OTHER. The system validates


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modified parameter values before they are accepted.

3.5.3

Parameter Planning

It is possible for the user to: Modify the parameter values in the following objects: inner cells, outer cells, internal cells, external cells, overlaid subcells, channel groups, neighbor relations, foreign cells, priority profiles, UTRAN external cell, UTRAN neighbor relation, RNC, and UTRAN cell Copy parameter values from the following objects in any planned area, fallback area or in the valid area to the same type of objects in a planned area: inner cells, outer cells, BSCs, sites, internal cells, external cells, overlaid subcells, channel groups, neighbor relations, foreign cells, priority profiles, UTRAN external cell, UTRAN neighbor relation, RNC, and UTRAN cell Copy parameter values from the following objects in any log area to the same type of objects in a planned area: BSCs, internal cells, and channel groups Copy parameter values from the following profile objects to the same type and revision of objects in a planned area: BSCs, internal cells, overlaid subcells, and neighbor relations. Only parameters defined in the profile objects are copied Restore values of individual parameters for the following objects in a planned area, that is, recover the value from the valid are a: inner cells, outer cells, BSCs, sites, internal cells, external cells, overlaid subcells, channel groups, neighbor relations, foreign cells, priority profiles, UTRAN external cell, UTRAN neighbor relation, RNC, and UTRAN cell The system performs the following: Marks modified parameter values in the planned area. See Section 3.13.1 Validates modified parameter values before they are accepted. See Section 3.5.7 Marks modified objects in a planned area with the date and time of the latest modification Stores the date and time of the latest modification of a planned area together with the area. The information is displayed in the Area Properties window 3.5.4

MO Management at Planning

In a planned area It is possible for the user to: Define that a change in an internal cell should be applied to all internal cells within the same BSC Move one, or several, or all internal cells connected to a site from one BSC to another BSC within the same planned area. All related MOs are affected Assign new target cell names for moved internal cells. All re lated MOs are affected by the name change. 3.5.5

MO Data Consistency at Planning

In planned areas, in order to help preserve the consistency of data stored in more than one place in the network, the system: Automatically adds a corresponding inner cell when an internal cell is added


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Automatically marks the corresponding inner cell for removal when an internal cell is marked for removal Automatically marks the neighbor relations belonging to it and the external cells, the outer cells and the neighbor relations which refer to it for removal when an internal cell is marked for removal Automatically marks the UTRAN neighbor relations belonging to it, when an internal cell is marked for removal Automatically marks the overlaid subcell belonging to it for removal when an internal cell is marked for removal Automatically marks the UTRAN external cell and UTRAN neighbor relations referring to it for removal when an UTRAN cell is marked for removal Automatically marks the channel groups belonging to the internal cell or the overlaid subcell for removal when an internal cell or an overlaid subcell is marked for removal Automatically marks the external cells, outer cells and neighbor relations referring to it for removal when a foreign cell is marked for removal Automatically creates the required External and outer cells when neighbor relations are created, if they do not already exist Automatically creates the required UTRAN external cell when UTRAN neighbor relations are created, if they do not already exist Changes the corresponding parameters in the external cells, the inner cells and the outer cells with the same designation (in other BSCs and MSCs) if a subset of the parameters in an internal cell is changed Changes the corresponding parameters in the external cells and the outer cells with the same designation (in other BSCs and MSCs) if a subset of the parameters in a foreign cell is changed Changes the corresponding parameters in the UTRAN external cells with the same designation if a subset of the parameters in an UTRAN cell is changed Changes the corresponding parameters in the outer cells with the same designation (in other MSCs) if a subset of the parameters in an inner cell is changed Automatically updates the BCCH (Broadcast Control Channel) Allocation active and Idle lists according to the neighbor relation data Automatically updates the information in the UMFI (UMTS Measurement Frequency Information) active list and the UMFI idle list according to the UTRAN neighbor relation data Note:

3.5.6

It is possible for the user to: control the major distribution mechanisms in CNA Preferences Window

Initial Parameter Values

Parameters are given initial values at the creation of an MO. The values are the same initial values the NE assigns the parameters at the MO creation in the NE. In addition, some parameters in external cells and inner cells are initiated from the corresponding parameters in internal cells or foreign cells where applicable. Parameters in outer cells are initiated from the corresponding parameters in inner cells or foreign cells. Parameters in UTRAN external cells are initiated from the corresponding parameters in UTRAN cells. 3.5.7

Parameter Validation


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Parameters are always validated against the permitted value ranges when they are entered in the planning function. The parameter ranges are adapted to the system type and version of the MO.

The following objects are not updated: foreign cells, RNC, UTRAN cell, MSC of version OTHER, BSC of version OTHER, and subordinate objects to these objects. 3.6.1

General

It is possible for the user to: Perform more than one update session at a time, from one or several planned areas, provided that they do not contain the same NEs Start an update job immediately or with delayed activation Delete scheduled update jobs Terminate active update jobs. A new update job can be started on the planned area to continue the terminated update job Decide to terminate the update job or to continue with the next command when updating the valid area in the event of error messages from the NEs. Occurring errors are saved in a log file Decide whether to save the valid area in a fallback area before an update job starts Decide whether the update of the BA (BCCH Allocation) lists should be conditional or unconditional before an update job starts Decide to set all appropriate internal cells in one BSC to the HALTED state before any individual internal cell is changed or to set the individual internal cells to the HALTED state at the time they are to be changed. The internal cells or the channel groups are set to the HALTED state only if required when the valid area is updated Make additional changes to a planned area after the network and the valid area have been updated from it Add transceiver groups, foreign cells, RNCs, UTRAN cells, and OTHER internal cells and neighbor relations from a planned area to the valid area or delete them from the valid area using an update job. The update job does not add transceiver groups, foreign cells, OTHER internal cells or OTHER neighbor relations to the NEs The update function performs the following function: Issues an error message if an update job terminates due to an unrecoverable error Sets the internal cells or channel groups to the state HALTED when updating the NEs if this is required Updates the network with the differences between the planned area and the valid area Does not start the update job if the planned area contains any MSCs, BSCs or sites which do not exist in the valid area. In this case, neither the real network nor the valid area are updated Updates the valid area with the changes after each successfully executed AXE command Makes no changes to applicable data in the valid area if a command fails


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The planned area still exists after the terminated update job if an update fails. A new update job can be started on the planned area, and CNA retries to send the failing and remaining commands in the update job It is not possible to modify a planned area while an update job with the planned area in question is in progress 3.6.2

Procedures for Updating the NEs

During an update the interaction with the NEs are as follows: The data links connecting the OSS-RC to the NEs are checked before any data is modified in the valid area and the NEs. The update job is not started if a link to any of the NEs included in the update is out of order CNA creates and executes the AXE commands needed to update the data in NEs to match the changes CNA creates and executes the AXE commands needed to direct the internal cells and channel group to states in which the AXE commands containing the data can be executed CNA creates and executes the AXE commands needed to connect channel groups to the transceiver groups and to disconnect them from transceiver groups CNA repeats the command a number of times and at system defined intervals if a fatal communication failure occurs during the execution of the AXE commands CNA repeats the command a number of times and at system defined intervals if a command is not executed due to FUNCTI ON BUSY in an NE If the command repetition fails due to a fatal communication failure, or FUNCTI ON BUSY, or other error messages from the NEs, CNA continues with the next command or terminates, depending on the setting when the update was initiated An update report is compiled during the update process. The report can be displayed during the update. The report may be printed or saved in a file when the update job is finished The result of the update of individual objects, such as Internal or external cells, is added to the report when the commands have been executed. AXE commands and responses are included in the report The user receives an E-mail when an update job has been completed or terminated

CNA can perform consistency checks on the MOs in the valid area and the planned areas at the following levels: Area level: The consistency checks of MSCs and BSCs are performed for all MSCs and BSCs in the valid area MSC level: The MSC itself and all the Inner and the outer cells which belong to the MSC are checked for consistency. The BSC consistency checks are performed for all BSCs belonging to the MSC BSC level: All BSCs belonging to the same MSC and all MOs which are connected to or contained in the BSCs, including MOs related to these are checked for consistency internal cell level: The internal cell itself, the external cells (with the same designation as the internal cell in all BSCs contained in the area), the inner cell (corresponding to the internal cell), the outer cells (with the same designation as the internal cell in all MSCs contained in the area) and the neighbor relations, channel


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groups and overlaid subcells connected to the internal cell are checked The result is displayed, printed or saved in a file according to the set preferences The job runs and completes without needing any manual assistance It is possible for the user to do the following: Select predefined check rules to compose a customized consistency check job Save the selected check rules in a file to be used in later consistency check jobs Select to run a reduced consistency check for an area, MSC or BSC respectively. In a reduced consistency check , only the modified or new cells in the area, MSC or BSC and the cells having these cells as neighbors are checked. The neighbors to the modified or new cells are checked as before. The reduced consistency check is used to consistency check only parts of large scale modifications Start a consistency check job immediately or delayed Schedule a consistency check job to be run once or repeatedly Decide if the checked object and the used rules shall be listed in the consistency check job report Set default values for consistency check jobs options Display a consistency check job Properties window Terminate an active consistency check job Delete a queued, terminated, failed or complete consistency check job Delete several consistency check jobs simultaneously Open a consistency check job report window Supervise the status of a running consistency check job in a separate window, from which reports may be viewed and printed

PCP (Predefined Configuration Profiles) offers a way to create predefined parameter configurations in so called Configuration Profiles. A profile defines a specific configuration for anything from a single parameter, several or all p arameters of one or more features to a subset or all of the parameters for configuration of a specific type of MO, for instance an Internal Cell. Configuration Profiles that are intended for a common configuration purpose are identified and grouped by the Profile Group to which they belong. The use of Profile Groups and their associated Configuration Profiles provides obvious benefits in the job of configuring the cell network but possibly even more so in the job of keeping track of and correcting unwanted changes to the configuration made without due coordination with radio engineering.

The CNA application is managed by a application administrator. For the application administrator It is possible for the user to: Set CNA preferences Unlock planned areas which are manually locked by other users Terminate and delete scheduled update, adjustment or consistency check jobs owned by other users


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Clear locks of the valid area and MSCs, BSCs, RNCs, or foreign cells in the valid area which have failed to be released due to OSS-RC system errors

3.10.1

Start

The CNA application is started from ONE (Object Network Explorer) or from the workspace menu. The valid area is automatically loaded during the start procedure. The user can select whether the GCC should also be started when CNA starts. 3.10.2

Shutdown

The CNA application session is terminated by closing the CNA base window. Ongoing update, adjustment or consistency check jobs can be terminated in the user interface. Information about job termination is contained in the job reports. Processes can be terminated due to internal errors in the system. At uncontrolled termination, a locked valid area and NE are not automatically correctly released, and job reports are not concluded. See Section 3.9 Scheduled jobs are not deleted when the application is shut down or terminated.

The ONRM is the master database in the OSS-RC system. The flow of network topology information is illustrated in the figure below.

Figure 1

Network Topology Information

GPI synchronizes the information between the CNA and BSM valid area and ONRM.

The following error handling is applicable for internal CNA errors: When an internal error which cannot be handled by CNA is detected, the user is


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informed, the error is reported to the OSS-RC error handling system, and the execution of the CNA function concerned is terminated Operations which are interrupted by an error do not resume execution after a restart of CNA The system performs the following: Saves data entry to the objects in the areas in the database each time the Apply button is selected and recovers it if an internal error terminates a session

The CNA application is managed using either the Graphical User Interface or a Command Line Interface. 3.13.1

General

It is possible for the user to: Use scrolling lists for navigation between the objects in CNA. The scrolling lists are accessible in the CNA base window Select the desired object from a scrolling list. The scrolling list displays the names or objects contained or known by the selected object in question. For example, all sites belonging to a BSC can be displayed in a scrolling list Filter on the system type and hierarchical data for internal cells, external cells, foreign cells Select the operations to be performed on a selected object from menus Display and change parameter values in Properties windows Display Properties windows for several different MOs simultaneously Display reports from the update, the adjustment and the consistency check jobs in separate windows Supervise the status of different update, adjustment and consistency check jobs in separate windows, from which reports can be viewed and printed Select the rules to be used in a consistency check in a separate window, and save the selections in a file Set CNA Preferences in a window The system performs the following Automatically also selects an internal cell, a foreign cell, an overlaid subcell or a site in GNIP if the MO is selected in the CNA base window, provided that GNIP is connected Marks parameter values which have been modified in a planned area in the Planned Area Properties windows Automatically converts any lower case text information which CNA requires to be upper case Note:

When a Properties window is opened it is always up to date, that is, the data is retrieved from the last save


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3.13.2

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CNA Table

The CNA Table function is intended for compact presentation in table form of all or parts of the various parameters used by the different MOs. The CNA Table also makes it easier to change a parameter for several MOs. It is possible for the user to: Start CNA Table from the CNA base window, with one or more MOs of the same type selected Load objects from all existing area types in a CNA Table Create, save, and load a collection of objects of a specific object type, referred to as object sets. The user can save an unlimited number of object sets (CNA does not impose any limitations, but there may be system limitations) Switch to any of the existing object sets at any time CNA Table can contain several MO types in a specific area Add one or more Related object types to CNA Table, that is add one or more object types related to the Main object type originally selected in the CNA base window Add MOs to or remove MOs from a CNA Table window using conventional copy or cut - and - paste techniques. Copy, Cut, and Paste may be used on the Main object type tab; on the Related object type tabs, only Copy is available. The objects copied may be pasted into another CNA Table window where the object in question is the Main object type Parameters for related MO types can be displayed in the CNA Table window. Each worksheet in CNA Table contains parameters for one MO type. The parameters are displayed by clicking the tab for the desired MO type Customize a CNA Table view and save it for future use. (Default and predefined Table Views cannot be customized.) The user can save an unlimited number of CNA Table views for each object type (CNA does not impose any limitations, but there may be system limitations) Select any existing Table view Note: CNA Table includes a default CNA Table view, which cannot be deleted, where all parameters for the ob ject type may be viewed Switch to any of the existing CNA Table views at any time Change the relative order of the displayed rows and columns Sort the order of the displayed rows in ascending or descending order using any column as the sorting key Hide and show parameter columns in order to limit the number of displayed parameters and thus to enhance the readability Freeze and unfreeze any row or column during the presentation. Freezing means that the applicable row or column always remains visible, regardless of the scrolling Use CNA Table to display and modify all or part of the parameters used by a specified set of MOs Show the relation between objects by choosing the Select Related Objects menu item in the background menu


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Change several user selectable MO parameters simultaneously Reset or restore editable MO parameter values. Resetting an MO parameter value returns the value to the last applied value. Restoring an MO parameter value sets the value equal to the parameter value in the valid area Set and change the desired print properties Select the object parameters which are to be printed. The printout may be assigned customized headers and footers for easy identification Use the CNA Table function to export MO parameter values in SYLK (Symbolic Link Format) or ASCII (American Standard Code for Information Interchange) format The system performs the following: A CNA Table is always in one of the following three modes: ¡

¡

¡

View Mode, which is entered if the current area is not a planned area which is locked by the current user Edit Mode, which is entered if the current area is a planned area lo cked by the current user Freeze Mode, which is entered if the area in CNA Table is not the same area as the current area in the CNA base window. That is, when loading another area in the CNA base window

Indicates the parameters which cannot be changed Indicates the parameters which have been changed Automatically validates changes when the user leaves a changed parameter cell Synchronizes CNA Table with the other parts of the CNA user interface regarding MO parameter and status changes Provides context sensitive on screen Help information 3.13.3

Graphical Cell Configuration

The GCC is intended to help the user to discover inconsistencies in the cellular network visually and to navigate more easily among the cells in the planned areas and the valid area. The map consists of several layers with different geographical information which can be switched on or off at any time. The cells are displayed as hexagons. The size of the individual hexagons depends on the geographical distance to the closest cell in the applicable layer and does not reflect the real coverage. It is possible for the user to: Select any cell displayed on the map. A selected cell is surrounded by a frame on the map and automatically becomes the current selection in the CNA base window, provided that the CNA has been connected to GCC. The properties of a cell are directly accessible when it has been selected Note: RNCs cannot be displayed on the map Select any site on the map. A selected site is surrounded by a frame on the map and automatically becomes the current selection in the CNA base window, provided that the CNA has been connected to GCC. The site properties are directly accessible when a site has been selected Note:


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UTRAN cells cannot be displayed on the map Select several cells displayed on the map. Selected cells are surrounded by a frame on the map and automatically become the current selection in the CNA base window, provided that CNA has been connected to GCC Note: internal cells and foreign cells cannot be displayed at the same time in the CNA base window. If both internal cells and foreign cells have been selected on the map, internal cells are only displayed in the CNA base window, and the internal cells selected on the map are highlighted. Select several sites displayed on the map. Selected sites are surrounded by a frame on the map and automatically become the current selection in the CNA base window, provided that CNA has been connected to GCC and that the sites selected belong to the same BSC. (sites cannot be displayed on area level.) Note: cells and sites cannot be displayed at the same time in the CNA base window. If both cells and sites have been selected in the map, cells are only displayed in the CNA base window, and the cells selected in the map are highlighted Switch the map layers on and off Find and select cells or sites with incomplete data which makes them impossible to be displayed on the map Select the parameters which control the coloring of the cell or the cells Assign colors to existing parameter values, individually for each radio parameter and network element. These parameters may for example be LAC, CO, RO, BCCHNO, NCC, BCC, or BSIC Note:

Some parameters are not valid for foreign cells and internal cells of version OTHER. The selected parameters are displayed one at a time

Specify the default parameter color map during the first map presentation. Several values may share the same color. The selected color settings are automatically saved Modify the default colors representing the different values of the parameters, for example LAC, CO, RO, BCCHNO, NCC, BCC, or BSIC, at any time Switch a scale bar displaying the current map scale on and off Save GCC views with customized names. This makes it possible to return to a previously selected set of map layers, map location and scale Open multiple map views Pan and zoom the current map view Find an internal cell or a foreign cell whose name matches a user defined string. The cells are presented in a list where the user can select a name and find the selected cell GCC can: Display sites and internal cells in separate map layers. GCC may also display foreign cells, neighboring cells, and overlaid subcells Start with the data from the valid area or from the area which is currently loaded in CNA, if CNA is connected to GCC In GNIP It is possible for the user to:


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Start CNA from the GCC application menu Display cells in separate layers, using information provided by GCC Display cells in different default layers based on system type and hierarchical data or in user defined layers using information provided by GCC Display hexagonal cell shapes with symbolic r adii Present all sites as symbols positioned according to their geographical location. The size of the site symbol depends on the map scale. sites are individual graphic objects in a separate map layer which can be switched on or off Refresh (reload) GCC data on the GNIP map, that is, update the GNIP map with the valid area and the changes made in a planned area, provided that CNA has been connected to GCC Display neighbor relation in three different ways: * The neighboring cells to a selected cell. * The cells to which a selected cell is a neighbor. * The two-way neighbor relations for a selected cell. These cells are indicated by filling the cell shapes with a special pattern and by giving the cells the same indication as the selected cell Display the identity of the MO on which the cursor is resting for more than a predefined time Display the cells, with colors according to the color parameter, on top of a map with geographical information. The cells and the map are displayed simultaneously Position the MOs to display in the valid area and in all planned areas on the map according to the geographical location of their sites

Cell related data can be managed in the following NEs in a GRAN radio network: Table 2

Supported NE s

NE Type

MSC BSC or BSC/TRC This includes support of Ericsson MSCs and BSCs which exist in a multi- vendor network. CNA supports both BSCs and BSC/TRCs, but considers both to be BSCs.

The following limitations apply: CNA does not support loading of the different maps used by GNIP from external media into the OSS-RC


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Copying of parameters between objects is only possible for objects of the same revision GNIP cannot draw two omni cells located at the same site in a common GCC layer

Glossary The OSS-RC Glossary is available in Reference [1]. Network Any type of telecommunication network. In CNA, all NEs connected to one OSS-RC, or a relevant part of the NEs. "update of the network" means updating the data in the relevant NEs. RO Routing Origin

[1] Operations Support System (OSS) Glossary , 0033-AOM 901 017/2 [2] OSS Library Typographic Conventions , 1/154 43-AOM 901 017/4 [3] CNA, Cellular Network Administration, User Guide , 1553-APR 901 0143


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144184643-EricssonOSS-CNA.pdf

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