rnc data collector product description 2_2

DN0932561 Issue 2-2

© Nokia Siemens Networks

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Nokia Siemens Networks WCDMA RAN, RNC Data Collector

RNC Data collector Product Description

2 (14) © Nokia Siemens Networks

DN0932561 Issue 2-2

The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This document is intended for the use of Nokia Siemens Networks customers only for the purposes of the agreement under which the document is submitted, and no part of it may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Siemens Networks. The document has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomes customer comments as part of the process of continuous development and improvement of the documentation.

The information or statements given in this document concerning the suitability, capacity, or performance of the mentioned hardware or software products are given “as is” and all liability arising in connection with such hardware or software products shall be defined conclusively in a separate agreement between Nokia Siemens Networks and the customer. However, Nokia Siemens Networks has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia Siemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which may not be covered by the document.

Nokia Siemens Networks will correct errors in the document as soon as possible. IN NO EVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THIS DOCUMENT OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY MONETARY LOSSES,SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT

This document and the product it describes are considered protected by copyrights and other intellectual property rights according to the applicable laws.

Wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark of Nokia Corporation. Siemens is a registered trademark of Siemens AG.

Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only.

Copyright © Nokia Siemens Networks 2009. All rights reserved.

Contents

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Contents

1 Introduction to document.................................................................... 4 1.1 Document Overview............................................................................... 4 1.2 Scope and Readership........................................................................... 4 1.3 Definitions and Terminology................................................................... 4

2 Introduction to L3-viewer .................................................................... 5 2.1 Background............................................................................................ 5 2.2 Definition................................................................................................ 5

3 Tool Structure ...................................................................................... 6 3.1 RNC Interface ........................................................................................ 8 3.2 Data collector (Megamon) SW ............................................................... 9

4 Installing phase.................................................................................. 10 4.1 Wirings................................................................................................. 10 4.2 IP Switch.............................................................................................. 10 4.3 Galvanic isolation................................................................................. 11 4.3.1 Isolation transformer ............................................................................ 11 4.3.2 Power Inverter...................................................................................... 12 4.4 12 4.5 Workstation.......................................................................................... 13

5 Monitoring phase ............................................................................... 14 5.1 RNC..................................................................................................... 14 5.2 Data Collector ...................................................................................... 14

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1 Introduction to document

1.1 Document Overview This document is the product description of the RNC data collector. Document contains main aspects of the system and partly detailed information of benefits & features of the system. Document target is to give reader general understating of the RNC data collector and how to use it.

In case you need more detailed information you can find from NOLS, Care -> Software Delivery -> WCDMA RNC.

1.2 Scope and Readership

Document is created to facilitate understanding of L3-analyzer for everybody uses it.

1.3 Definitions and Terminology

DX DX200 Technology

IPA Nokia Specific Hardware

RNC Nokia Radio Network Controller

RAN Radio Network

SW Software


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2 Introduction to L3-viewer

2.1 Background Radio networks being more and more and complicated more need of proper tools and services are needed. There has also risen need of customer side for proper services to meet current complex Radio Networks systems. Mobile network vendors have also noticed that it’s not anymore enough just delivery networks but also deliver proper maintenance and tracing.

There is a need for tools and methods to facilitate testing and customer support. Currently testing, tracing and troubleshooting of RNC and RAN contain a lot of meticulous work and not much automation is used to run the tests and interpret test results. There is no proper way to check current status of RNC’s and do the periodic maintenance tasks considering RNC care and customer support. L3-viewer is a tool for help tracing radio network and subscribers.

2.2 Definition

The message data collector (Megamon) is tool to get and save message flows.

L3-analyzer/viewer (Emil) is tool to view and analyze message flows from big monitoring in quickly and user friendly way.


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3 Tool Structure The RNC data collector actually consists on two different parts, a data collector (Megamon) and a data Analyzer/Viewer (Emil). Below is picture of the system. Picture is simplified version of environment where is RNC included. System consist three parts: an interface-process operates inside RNC, the data collector collects data sent by interface process and the data analyzer parses data from the data collector. The RNC data collector can be installed many ways, see below pictures (1-3).

Picture 1: Data collector + Data analyzer for supporting NetAct Call trace


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Picture 2: Data collector + Data analyzer for supporting NetAct Call trace + extra HD rack

Picture 3: Data collector + Data analyzer/viewer + extra HD rack


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3.1 RNC Interface The interface process operates in every DX-units and collects messages and logs from RNC’s. The interface process is in default packet from RN2.2 CD2.

The interface process collects message- and log -data directly from RNC. It collects data based on a filter conditions that are set by Megamon. By using filters user can decide exactly what processes and what messages are monitored.

The message data are so huge that the unit must have direct LAN-connections (RJ-45 cables) to the RNC data collector.

Picture 4: LAN connections


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3.2 Data collector (Megamon) SW

The data collector (Megamon) is Windows- program which collects messages data are sent by RNC. Megamon is also used to set parameters and filters to be used in message- and logs- collecting control. It is also suggested that the RNC data collector is run at own machine, because RNC’s units generate so much traffic. There can be several Gigabits data in just few hours. One call takes approximately 100 kb of data so 100 GB hardware can contain messages of million calls. The data are stored in special format for saving save disk space.

Normally the Megamon is set to collect data as ring buffer. It’s possible to maintain 1-2 days data in one 1TB HD.

Picture 5: The Megamon in configuration phase.

As said in RNC-interface-part, the Megamon receives data from RNC units. The Megamon also configures filter parameters and units to collect data from RNC. The Megamon sends configuration data to RNC before collecting data.

In picture 5 can be seen configuration parameters setting.


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4 Installing phase

4.1 Wirings

The needed DX unit must be equipped with LAN-cable. There are two cable sets for RNC196 and RNC450/2600.

The sales items are:

RNC3314, Megamon Cable set for RNC450/RNC2600

RNC3315, Megamon Cable set for RNC196

4.2 IP Switch

Requirements for IP Switch are:

48 x 10/100 ports + 2 x GBE ports IP-Switch for each RNC.

For example: ZyXEL ES-3148 48-port Managed L2+ Fast Ethernet Switch, HP ProCurve Switch 2610-48 (J9088A) or type of switch from other manufacturer.


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4.3 Galvanic isolation

The galvanic isolation must be proceeded, because the CHUS-cables don’t isolate ground potential between the RNC and mains current of the IP Switch. This can be done an isolation transformer or a power inverter.

4.3.1 Isolation transformer

Requirements for the isolation transformer:

Power VA 140 VA or more

Input voltage / Output voltage 110VAC/110VAC or 230VAC/230VAC

Weight Less than 2.5Kg

One used model: Trafox KM140.230 (http://www.trafox.fi/index.php?id=190)


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4.3.2 Power Inverter

Requirements for the isolation transformer:

Power VA 140 VA or more

Input voltage range DC 38 – 58V

Output voltage range AC100-120V

Continuous power 150W or more

Output frequency 50Hz or 60Hz

Weight Less than 2.5Kg

One used model: BJA BJA-M151-48 (http://www.baojiaan.com/en_showcase/en_i154.htm)

4.4


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4.5 Workstation

The requirements for workstation (Basic configuration, no disk writings)

Size : 2U

Processor : 64 bit, 4-8 Cores, Speed 2.5 GHz or faster

Memory : 12GB,

L2 Memory: 8MB

LAN connectors: 3 * RJ45 1 GBit/s

HD : 2x 146GB 10K RAID1

Operating system: Windows 2008 Server, standard edition

The requirements for workstation (With disk writings, local L3-Viewer usage)

Size : 2U

Processor : 64 bit, 4-8 Cores, Speed 2.5 GHz or faster

Memory : 12GB,

L2 Memory: 8MB

LAN connectors: 3 * RJ45 1 GBit/s

HD : 2x 146GB 10K RAID1 + 6x 146GB 15K RAID0

Operating system: Windows 2008 Server, standard edition


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5 Monitoring phase

5.1 RNC

The message monitoring uses processor time of RNC - unit’s (about 3 – 6%), but it doesn’t affect to normal RNC operation.

5.2 Data Collector

If the HD is used, then the time based writing and the disk size checking are recommended.

Typical message filter for ICSU-unit is:

SR:((OFAM=4FD)AND(OPRO>19B))OR(OFAM=509,508,507)

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