Data Inputs for Ericsson

Ultima™ Mentor Required Data Inputs for Ericsson Infrastructure

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Table of Contents

Table of Contents 1

Introduction .............................................................................................. 1 1.1

Definitions, Acronyms, and Abbreviations ........................................................... 1

2

Mentor Preliminary Setup Checklist .......................................................... 2

3

Detailed Description of Required Information and Data ............................ 3 3.1

Network Configuration Data .............................................................................. 3 3.1.1 Ericsson 3G Network Topology (XML format) ............................................. 3 3.1.2 GSM Network Topology .......................................................................... 8 3.1.3 Antenna and Sectors Physical Location, Profiles, and Parameters in Delimited Format 8

4

Ericsson Logs and Stats........................................................................... 11 4.1

GPEH Log Collection and Setup ........................................................................ 11 4.1.1 GPEH Profile ........................................................................................ 11 4.1.2 Retrieval Procedure .............................................................................. 17 4.1.3 Events to Record ................................................................................. 17

4.2

Stats File (XML) ............................................................................................. 18 4.2.1 Configuring Counters in OSSRC ............................................................. 18 4.2.2 RBS Counters Required for Proper HSPA Analysis..................................... 18 4.2.3 Retrieval Procedure .............................................................................. 19

4.3

Templates ..................................................................................................... 19

4.4

RES Activation and Properties (WMRR) ............................................................. 19 4.4.1 Setting up a WMRR Recording ............................................................... 20 4.4.2 RES Results ........................................................................................ 23

4.5

Folder Structure for GPEH and Counter Files ..................................................... 23

4.6

RPMO Recordings........................................................................................... 24 4.6.1 Logs Collection and Setup ..................................................................... 24 4.6.2 Log Storage ........................................................................................ 26

iii

Introduction

1 Introduction This document contains a list of all the required information and data to be collected on Ericsson UMTS infrastructures in preparation for the installation of the Mentor optimization tool. The information and data required includes the following: •

•

Network configuration (detailed in section 3)

o

Ericsson Network Topology file (XML format)

o

Antenna and sectors physical location, profiles, and parameters in delimited format (internally known as Schema format)

o

GSM Network Topology (Optional, for running an IRAT optimization and displaying the GSM layer)

UMTS logs and counter data (detailed in section 4)

o

GPEH logs

o

Counters file (XML format)

o

RBS logs

When preparing to set up Mentor in a network, we usually recommend starting by creating the network configuration, followed by a sample data collection. Section 2 outlines a “setup checklist”, which should be used as a first step to facilitate efficient installation and configuration. The following sections of this document provide a more in-depth description of the required data sources, and the manner in which they can be obtained.

1.1 Definitions, Acronyms, and Abbreviations The following definitions, acronyms, and abbreviations are used throughout this document: •

HO – Handoff

•

HHO – Hard Handoff

•

NL – Neighbor List

•

RNC - Radio Network Controller

•

GPEH – General Performance Event Handler

•

RAB – Radio Access Bearer

•

XML – Extensible Markup Language

•

RPMO - Real Time Performance Monitoring

1

Ultima Mentor – Required Data Inputs for Ericsson

2 Mentor Preliminary Setup Checklist The following table summarizes the minimal data required for the kickoff of a Mentor installation. This table should be used as a reference to expedite the installation process. These files can be collected by TEOCO professional services on site, or by the customer point of contact. Mandatory files and definitions Description

Data source

Ericsson XML configuration dump

Ericsson 5.x/6.x/12

Antenna File

See 3.1.3.1

section

Projection used.

Planning tool (Mentum Planet, Forsk Atoll etc.), internal DB

Terrain file

TAB, GRD, GeoTiff

See 3.1.3.2

section

Antenna Profiles

Planet others

See 3.1.3.3

section

Please also specify UTM Zone,

GPEH LOG (sample 1 hour) •

•

files

Reference OSSRC

formats

and

Check

See section 3.1.1

Ericsson P5/P6/P7/W10/W12

See section 4.1


See section 4.2

Important: GPEHfileSize: 60000 per RNC UEfraction: 1000

Ericsson Counter files RBS counter files

See section 4.2.3

Optional files and definitions

1

2

Description

Data source

Reference

GSM configuration

Customer DB

See section 3.1.1.3

Check

Detailed Description of Required Information and Data

Optional files for special cases only

1

Description

Data source

Reference

RES periodic reporting (WMRR)


See section 4.4

Check

Reports should include: Ec, EcIo, UeTxPower

Note: TEOCO recommends using RES recordings for a limited time only, and mainly for creating the UeTxPower maps.

3 Detailed Description of Required Information and Data 3.1 Network Configuration Data The sources for network configuration data are: o

A predefined set of Network Topology files exported from the Ericsson OSS in XML format.

o

Textual files, including complete information required for physical sites and soft parameter configuration, depending on availability (“Schema Format”).

IMPORTANT – Mentor includes an automatic wizard that generates most of the textual files required for its operation, based on the data commonly available in the service provider environment.

3.1.1

Ericsson 3G Network Topology (XML format)

There are several options to generate the Ericsson XML configuration files. Many variants exist, which will generate different content within the XML files. The Mentor product makes use of an elaborated configuration file, which contains all of the RNC and NodeB parameters. Using this type of file enables Mentor to identify and warn about configuration problems, use the RBS counters as well as create an accurate model of the network. The network topology dump might already be activated in the network. Follow the procedure in section 3.1.1.1 to verify whether the dumps have already been created, or run them directly from the UNIX machine. The procedure described in 3.1.1.2 uses the OSSRC to generate the configuration files.

3


3.1.1.1 Generating the XML Configuration Using Scripts First check if the configuration files are already available in the following directory: /var/opt/ericsson/nms_umts_wran_bcg/files/export

You can use the UNIX scripts in the OSS that periodically generates the XML configuration file. The shells script is called start_rah_export.sh, and is located in the following directory: opt/ericsson/nms_umts_wran_bcg/bin/ Further information can be found in the ALEX system through: “Bulk Configuration System Administrator Guide 1/1543-APR 901 550/2 Uen E “ “Bulk Configuration General and Transport User Guide” “Bulk Configuration System Administrator Guide”

3.1.1.2 Generating the XML Configuration File Using the OSSRC IMPORTANT: Because of an internal Ericsson issue, we recommend exporting the entire network configuration and not only a specific RNC. See chapter 3.1.1.3 for an explanation as to how to analyze the results. 1. Launch>>Applications>>Ericsson>>OSS Common Explorer. 2. Ensure that the combo box under WCDMA menu has the value RNC/RBS. 3. Right-click Root (red icon) -> Export configuration. Can be performed up to RBS level. 4. Change the file name (optional). 5. Select the Both radio and transport topology option (3rd radio button). 6. Click Next and then Finish.

4


5


3.1.1.3 Working with Ericsson XML files and checking their validity Ericsson OSS will not export the NodeB information when only exporting a single RNC. TEOCO recommends verifying the data using an external XML reader, such as “XML Marker”. (http://symbolclick.com/download.htm) When loading a single RNC xml dump without the NodeB information, you will see a picture similar to the one listed below. Under the main “SubNetwork” folder, there is an individual “SubNetwork” for each RNC.

6


An XML dump that contains NodeB data will include additional information under the RNC “SubNetwork” such as “ExternalGsmCell”, etc.

Sometimes, it is not possible to open a large XML file with an XML editor (usually over 750MB). In this case, use TEOCO’s scripts to divide the file into the different RNCs, or manually cut-out RNCs between the two XML directives: And

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3.1.2

GSM Network Topology

Note: This is an optional input used for IRAT optimization and for displaying the GSM topology. A special retrieval procedure can be used on the OSS for each underlying GSM vendor. Moreover, a physical topology file is required, similar to the one needed for UMTS. TEOCO can provide detailed documentation on how to perform this operation, if required. For example, for Ericsson GSM networks the following “standard” procedure should be followed (additional variants are available, depending on the specific versions). This is only an excerpt from the full document. Retrieve the required BSS network configuration file from the Ericsson OSS, using the Cellular Network Administrator (CNA), by running the following commands: • Overall Network configuration: cna_export NW = all, MSC = all, MSC_REF = none, BSC = all, BSC_REF = all, SITE = all, SITE_REF = none, CELL = all, CELL_REF = all, OUTPUT=AllParameters_YYYYMMDD.txt • Foreign cells: cna_export NW = all, FCELL = all, FCELL_REF = all, OUTPUT=foreign_HO_YYYYMMDD.txt

(where: YYYY – year, MM – month, DD – day)

3.1.3

Antenna and Sectors Physical Location, Profiles, and Parameters in Delimited Format

The physical parameters of the network, such as the sector and antenna location, and the antenna profiles, might not be available through the OSS configuration dump. Most of the required physical configuration of the network can be derived from network planning tools or from customer-self-maintained databases with the most updated network configuration. Mentor defines a set of textual files that should be available. These files are: •

Antenna file - includes the physical configuration of each sector. See section for the file format.

•

Antenna profiles – antenna-pattern data files

•

Mentor also requires an updated Terrain file. In contrast to planning tools or other configuration sources, Mentor requires only active sectorcarriers. Sectors that are inactive during an analyzed period should be marked as “inactive” in the antenna files.

8


All soft parameters may be defined in this file, but will be overridden by the Network Topology files. We recommend that the latest Network Topology files be used to update the Schema format file and to identify any inconsistencies, such as missing or unnecessary sectors.

3.1.3.1 Antenna File The antenna file (in tab-delimited text format) includes the physical configuration of each sector, including: o Location data (i.e., coordinates, height, and so forth) o Antenna characteristics (i.e., height, azimuth, and so forth) o Physical constraints o Network topology The antenna file must include all sectors selected for optimization and all sectors in the guard-zone area – where optimization is not performed. We recommend that all sectors within two tiers of the selected sectors be included. The Antenna file fields are described in Table 1: Field

Value

Range

Description

RNC Name

String

Unique in the network RNC display name

RNC ID

String

Unique in the network

RNC Vendor

String

The vendor of the RNC

NodeB Name

String

Site display name

NodeB ID

String

Unique under the same RNC

NodeB Longitude NodeB Latitude Sector Name

Double

Default

Double String

Parent of cell

Antenna ID

String

Antenna Model

String

50ch max

Unique under the same cell

Sector Keywords

String

Antenna Longitude

Double

Antenna Latitude

Double

Antenna Height Antenna Electrical DownTilt Antenna Mechanical DownTilt Antenna Azimuth

Integer

0…200

Integer

-20 …+20

Electrical tilt

Integer

-20 …+20

Mechanical tilt

Lookup from antenna DB 1000ch max Comma-Separated list of keywords, if any

Height of the antenna above ground

Integer

0…359

UL Cable Loss

Double

0…20

Azimuth With step 0.1

DL Cable Loss

Double

0…20

With step 0.1

Active

String

50ch max

In building

String

50ch max

0

Table 1: Antenna File Parameters

9


Note: If UTM coordinates are used, the relevant column headers should be different: NodeB X, NodeB Y, Antenna X, and Antenna Y.

3.1.3.2 Terrain File The terrain map should be in GeoTif data format. We recommend that the map resolution be at least 50m. Mentor can support additional terrain file formats, such as TAB, grd, etc.

3.1.3.3 Antenna Profiles Antenna-pattern data files are in Planet format.

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Ericsson Logs and Stats

4 Ericsson Logs and Stats The General Performance Event Handler (GPEH) files contain periodic and event-triggered mobile and NodeB reports, which enable Mentor to model the network. The following procedure should be used to define GPEH and Stats profiles, generate them, and collect them for use in Mentor.

4.1 GPEH Log Collection and Setup 4.1.1

GPEH Profile

For the GPEH files to have the necessary information required for Mentor to operate, the correct profile must be defined in the OSSRC. The following procedure can be used to set the profile: INPORTANT - The following parameters must be defined correctly: •

UeFraction=1,000

•

GPEHfileSize=60,000

•

Mentor can operate with reduced values for these parameters. To define a different set of values, please consult TEOCO support.

To add the GPEH profile:

1.

Launch>>Applications>>Ericsson>>Performance>>Initiate data Collection>>WCDMA/LTE RAN Measurements

11


2.

Administration -> Add profile.

3.

General performance event handling profile (fourth radio button). Next.

4.

Profile name (required) & Description (optional). Next.

12


5.

Choose entity type - RNC / RBS (usually RNC). Next.

6.

Choose RNC from left to right (only one can be chosen). Next.

7.

Choose Cells from left to right. Next.

13


8.

14

Choose which events to record from left to right. NOTE: Detailed event list is listed in section 4.1.3


9.

Choose UE fraction (1000 is recommended but a lower value can be used as well). Next.

15


10.

Recording activation by using "Resume profile" option or Scheduler information - see Using scheduler. Finish.

To view and change the profiles go to the General performance profile tab. Changing the GPEH recording profile from “Headers data only” to “All data”:

1.

[Read / Edit] GPEH data level (Edit - only in admin user type).

2.

Change GPEH data level from Headers data only to All data (Admin users only).

3.

Close the window.

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4.1.2

Retrieval Procedure

The GPEH files are generated through the Ericsson OSS. In OSS P5 the GPEH files are located in: /var/opt/ericsson/nms_umts_pms_seg/segment1/red/downloaded/gpeh In OSS 5.x/6.x/12 the GPEH files are located in: /var/opt/ericsson/nms_umts_pms_seg/segment1/GPEH/SubNetwork=/MeContext= Where is the name of the RNC you have to complete For example. /var/opt/ericsson/nms_umts_pms_seg/segment1/GPEH/SubNetwork=EVO1/MeContext=EVO 1

4.1.3

Events to Record

The following GPEH events are required: Event 8 19 34 128 258 259 265 268 384 385 386 398 399 415 438 441 451 456

Protocol RRC RRC RRC NBAP RANAP RANAP RANAP RANAP Internal Internal Internal Internal Internal Internal Internal Internal Internal Internal

Description RRC_MEASUREMENT_REPORT RRC_RRC_CONNECTION_RELEASE RRC_RRC_CONNECTION_REQUEST NBAP_RADIO_LINK_SETUP_REQUEST RANAP_IU_RELEASE_REQUEST RANAP_IU_RELEASE_COMMAND RANAP_DIRECT_TRANSFER RANAP_COMMON_ID INTERNAL_IMSI INTERNAL_RADIO_QUALITY_MEASUREMENTS_UEH INTERNAL_RADIO_QUALITY_MEASUREMENTS_RNH INTERNAL_IRAT_HO_CC_EVALUATION INTERNAL_IRAT_HO_CC_EXECUTION INTERNAL_RAB_ESTABLISHMENT INTERNAL_SYSTEM_RELEASE INTERNAL_PACKET_DEDICATED_THROUGHPUT INTERNAL_SYSTEM_UTILIZATION INTERNAL_CALL_SETUP_FAIL Table 2: Events to Record as part of the GPEH Profile

17


4.2 Stats File (XML) This 15-minute interval file contains the RNC counters for all the network elements. Usually the counters are already correctly defined and enabled in the OSSRC. If for any reason the RBS counters are not configured for collection, please refer to the list in section 4.2.2 for the list of counters. It is important to add them for proper HSPA analysis.

4.2.1

Configuring Counters in OSSRC

Adding Counters profile: 1.

Launch>>Applications>>Ericsson>>Performance>>Initiate data Collection>>WCDMA/LTE RAN Measurements

2.

Administration -> Add profile.

3.

User defined statistical subscription profile (first radio button). Next.

4.

Profile name (required) & Description (optional). Next.

5.

Standard statistics. Next.

6.

Choose entity type - RNC / RBS / RXI (usually RNC). Next.

7.

Choose RNC from left to right (more than one can be chosen). Next.

8.

Choose which counters to record. There is a limit for the amount of counters to be recorded per RNC, depending on the OSS version. The counters are sorted in alphabetical order. The groups marked in blue are system defined and are a part of the system’s profiles, where the markings ‘Pr’ means primary, ‘S’ secondary. The profiles are an integral part of the OSSRC program, and are usually active; hence there is no need to recollect them. Next.

4.2.2

RBS Counters Required for Proper HSPA Analysis

pmCapAlloclubHsLimitingRatio pmHsDataFramesLost pmHsDataFramesReceived pmAckReceived pmNackReceived pmAverageUserRate [0..17] pmNoInactiveRequiredSubFrames pmNoActiveSubFrames pmNoOfHsUsersPerTti [0..4] pmReportedCqi [0..31] pmSumNumHspdschCodesAdded pmSampleNumHspdschCodesAdded pmSumOfHsScchUsedPwr [0..102] pmSumAckedBits

18


pmSumTransmittedBits PmTransmittedCarrierPower [0..51] PmTransmittedCarrierPowerNonHs [0..51] PmAverageRssi [0..64] pmTransmittedCarrierPowerHs PmRemainingResourceCheck [0..2]

4.2.3

Retrieval Procedure

The Counter files are generated through the Ericsson OSS. In OSS 5 the Counter files are located in: var/opt/ericsson/nms_umts_pms_seg/segment1

In OSS 5.x/6.x/12 the Counter files are located in: /var/opt/ericsson/nms_umts_pms_seg/segment1/XML/SubNetwork=/MeContext= Where is the name of the RNC to complete, separated into RBS and RNC XML files.

4.3 Templates The template files are located in: var/opt/ericsson/nms_umts_pms_reg/templates

The Template files include the GPEH events to record, counters to record, and network areas for both. If the template files are used, they must be activated in the “Data collection subscription profiles” in the OSS.

4.4 RES Activation and Properties (WMRR) Note: This is an optional data input, which is rearly used with current customers. Mentor can utilize the additional information provided as periodic messages in the GPEH logs. Activating the periodic messages will increase the GPEH data file size. If the messages are activated, TEOCO recommends defining EcIo, RSCP, and UeTxPower as parameters to be reported in the periodic measurements.

19


4.4.1

20

Setting up a WMRR Recording

1.

Open the configuration application and select New Recording->WMRR->WCDMA.

2.

Define the recording time period and recurring schedule.

3.

For the RNC measurements, under Service1, define the required RABs for recording. We recommend including both voice and data RABs.


4.

Under Measurement Quantity define Ec/No, RSCP and UeTxPower (UeTxPower is optional and can be removed if there is no place)

5.

Select Sample & Fraction Settings. Make sure that UE Fraction is set to Full and that the periodic samples for each service are maximum 16 seconds. (If required, you can choose a higher sampling rate, for example, 12 or 8.)

21


22

6.

In the Cell Set dialogue box, select the relevant RNCs for recording.

7.

Schedule the recording for execution.


4.4.2

RES Results

Activating RES in the network will result in additional periodic-measurement reports in the GPEH files. For example, the following sample of a GPEH file includes RES data. As can be seen by the time stamp, each report is provided in 16-second time intervals.

In the following case, it can also be seen that two sectors were serving the terminal.

4.5 Folder Structure for GPEH and Counter Files For OSS data – GPEH and counter files – to be processed most efficiently by Mentor, the folder structure should be maintained as follows: •

Under the parent folder, create two folders. One should be named “logs”, for the GPEH files, and the other “KPIs” for the counter files (including the RBS counters). It is VITAL that these folder names are used, as Mentor looks for these names when processing the files.

•

Under each of the two folders, create a folder for each day of recordings, named according to the date, in YYYYMMDD format. Diverting from this format will increase Mentor’s file processing time.

•

Under each date folder, place the appropriate recording files for that day. The files can be placed directly under the date folder, but we recommend opening a subfolder for each RNC/RBS, as shown in the following example.

23


4.6 RPMO Recordings 4.6.1 1.

Logs Collection and Setup Start Event Based Applications (EBA) for GSM from the OSS–RC Workspace Menu: Applications  Ericsson  Performance  Event Based Applications for GSM

2.

24

Define recording cell sets using the Set Handler which is available from the RPMO main window.


3.

Define RPMO events to be recorded. The following events are mandatory for proper Mentor operation. Index 1 2 3 4 5 6 7 8 9 10 11 12 13

Event Number 1 2 3 5 6 7 14 20 23 34 36 38 41

Event Name Assignment Failed ClearRequest Clear Command HandoverCommand HandoverComplete ChannelBusy Cipher Mode Complete MS Context Established TBF Changes Cs Call Release Measurement Result Large TBFEnds VGCS Notification Response

Raw Event Data Export (REDE) makes it possible to store any events and monitors that can be provided by the R-PMO server software in a file. The format of the file can be tab delimited or BIN. (In Mentor 9.1 the only supported format is tab delimited). Tab delimited format is limited by OSS-SC to a maximum 100 sectors even though more than one recording could be scheduled simultaneously.

25


4.6.2

Log Storage

The files are stored in the following OSS directories:

26

•

var/opt/ericsson/eba_rede/data/USER NAME/RawEventExport/

•

var/opt/ericsson/eba_rede/data/USER NAME/scheduledRawEventExport/ (if scheduling is used)

Data Inputs for Ericsson

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