3G UMTS W-CDMA Test Software Guide

3G UMTS W-CDMA Test Software

Getting Started Guide

Agilent Technologies

2 3G UMTS W-CDMA Getting Started Guide

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3G UMTS W-CDMA Getting Started Guide 3

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Contents

1 Introduction to 3G UMTS W-CDMA

Welcome to the Agilent 3G UMTS W-CDMA Test Software 10

What is 3G? 10

Using this Guide 10

Available 3G Test Software Products 11

3G Test Software Protocol Decodes 11

Decodes for 3G UMTS W-CDMA 14

3G Abbreviations and Definitions 15

2 Getting Started with the Advisor J5458A 3G Test Software

Getting Started with the J5458A 3G UMTS W-CDMA Test Software 18

Step 1. Enable the 3G Test Software 19

Step 2. Choose the Protocol Stack Routing Direction of 3G Data 22

Step 2a. Direct Data to 3G SAAL Decodes 23

Step 2b. Direct Data to 3G IuUP Decodes 25

Step 2c. Direct Data to 3G Iub or Iur Decodes 26

Changing the Iub or Iur Data Framing 26Changing the ATM VP.VC and the AAL-2 CID 29Changing the UMTS Iub or Iur FP Type Settings 30Changing the UMTS Iub or Iur FP Multiplex Channels 31Changing the UMTS Iub or Iur MAC Logical Channel Type 33Changing the UMTS Iub or Iur RLC Mode 34

Step 3. Set Display Filtering on 3G Decodes 35

To Filter SAAL Stacks 36To Filter AAL-2 Stacks 37

3 Getting Started with the Network Analyzer J6842A 3G Test Software




Step 1a. Viewing the Data and Encapsulations 42Step 1b. Filtering the Data 43

Step 2a. Choose the Protocol Stack Encapsulation of 3G Data 44

What is an Encapsulation? 44How to Add an Encapsulation 44

Step 2b. Add an Encapsulation for 3G SAAL Decodes 46

Step 2c. Add an Encapsulation for 3G IuUP Decodes 47

Step 2d. Add an Encapsulation for 3G FP-Iub or FP-Iur Decodes 48

Changing the Iub or Iur Data Framing 49Changing the ATM VP.VC and the AAL-2 CID 52


Index


1Introduction to 3G UMTS W-CDMA

Welcome to the Agilent 3G UMTS W-CDMA Test Software 10

What is 3G? 10

Using this Guide 10

Available 3G Test Software Products 11

3G Test Software Protocol Decodes 11

Decodes for 3G UMTS W-CDMA 14

3G Abbreviations and Definitions 15

9Agilent Technologies


Welcome to the Agilent 3G UMTS W-CDMA Test Software

The 3G UMTS W-CDMA Test Software is a tool for field service network managers, engineers, and technicians in deploying, troubleshooting, and optimizing advanced 3G (third generation) Radio Access Networks.

What is 3G?

“3G” is the third-generation of mobile communication services, which provide high quality, efficient, and easy-to-use mobile, wireless, hand-held multimedia devices. Third-generation devices offer:

• Very high bit rate

• Enhanced communications

• Multimedia (voice, data, music, interactive data)

The Agilent Advisor and Network Analyzer protocol decodes help you test and troubleshoot 3G networks.

Using this Guide

This guide introduces you to the characteristics of 3G mobile services, then describes how to configure and use the Advisor and Network Analyzer 3G UMTS W-CDMA protocol decodes to troubleshoot and test 3G wireless communications systems.

The term “3G UMTS W-CDMA” stands for:

• 3G — Third Generation

• UMTS — Universal Mobile Telecommunications System

• W-CDMA — Wideband Code Division Multiple Access


Introduction to 3G UMTS W-CDMA 1

Available 3G Test Software Products

Two Agilent 3G UMTS W-CDMA Test Software products are available and operate on the platforms described below.

• Advisor J5458A 3G UMTS W-CDMA Test Software

The J5458A 3G Test Software is built into the Advisor LAN and WAN/ATM software and runs on the LAN and WAN/ATM hardware platforms and the Advisor Software Edition running on a PC client.

• Network Analyzer J6842A 3G UMTS W-CDMA Test Software

The J6842A 3G Test Software is built into the J6841A Network Analyzer Software and runs on the Network Analyzer hardware platform and the Network Analyzer Software Edition running on a PC client.

3G Test Software Protocol Decodes

The 3G UMTS W-CDMA Test Software enables you to test and deploy 3G Radio Access Networks. This test software is the most powerful and comprehensive tool available for installing, maintaining, and troubleshooting these networks.

The Advisor 3G protocol decodes add extensive capabilities for testing, including analysis of the ATM transport network layer, and decoding and searching of the Iu, Iub, and Iur protocol layers.



The Radio Access Network (RAN) resembles:

Sample TestScenario

A sample test case displaying the Iu and Iub interfaces is shown here:

RadioNetwork

ControllerUser

Equipment

UuPOS

ATMMobile

SwitchingCenter

others

Node B

Iub

ATM1.5, 2, 6.3 Mbps

Iu

ATM52, 155 Mbps

PSTN

Agilent Advisor



Overview of GSM,GPRS, and UMTS

An overview of the GSM (Global System for Mobile Communications), GPRS (General Packet Radio System), and UMTS (Universal Mobile Telecommunication Services) is shown here:

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Decodes for 3G UMTS W-CDMA

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For FurtherInformation

For details about the IMT-2000 services, see the ITU’s Recommendation ITU-R M.816-1, or contact the International Telecommunication Union (ITU) for more information about the recommendation.

Iub User PlaneAAL-2 / FP / MAC / RLC/PDCPAAL-2 / FP / MAC / RLC/BMC

Iub Control PlaneAAL-5 / SSCOP / SSCF-UNI / ALCAP (AAL2SIG)AAL-5 / SSCOP / SSCF-UNI / NBAPAAL-2 / FP / MAC / RLC / RRC / NAS

Iu User PlaneAAL-2 / IuUP / RLPAAL-5 / IP / UDP / GTP-u/IuUP

Iu Control PlaneAAL-5 / SSCOP / SSCF / MTP3-b / ALCAP (AAL2SIG)AAL-5 / SSCOP / SSCF / MTP3-b / SCCP / RANAP / NASAAL-5 / SSCOP / SSCF / MTP3-b / SCCP / RNSAPAAL-5 / IP / SCTP



3G Abbreviations and Definitions

Abbreviations and definitions in this guide include:

AAL-2 — ATM Adaptation Layer type 2

AAL-5 — ATM Adaptation Layer type 5

ALCAP — Access Link Control Application Part

ATM —Asynchronous Transfer Mode

CDMA — Code Division Multiplex Access

FP — Framing Protocol

GPRS — General Packet Radio System

GTP-u — User plan part of GPRS (General Packet Radio System) Tunnelling Protocol

IP — Internet Protocol

ITU — International Telecommunications Union

Iu, Iub— Interface unit, Interface unit b

MAC — Medium Access Control

MTP3-b — Message Transfer Part level 3 (Broadband)

NAS — Non-Access Stratum

NBAP — Node B Application Part

RAN — Radio Access Network

RANAP — Radio Access Network Application Part

RLC — Radio Link Control

RLP — Radio Link Protocol

RNSAP — Radio Network Subsystem Application Part

RRC —Radio Resource Control

SAAL-NNI — Signalling ATM Adaption Layer for Network-to-Network Interfaces

SAAL-UNI — Signalling ATM Adaption Layer for User-to-Network Interfaces

SCTP — Simple Control Transmission Protocol

SSCF — Service-Specific Coordination Function

SSCOP — Service-Specific Connection-Oriented Protocol

SCCP — Signalling Connection Control Part

TTC — Telecommunication Technology Commission (Japan)

UMTS — Universal Mobile Telecommunication System

W-CDMA — Wideband CDMA (Code Division Multiple Access)




2Getting Started with the Advisor J5458A 3G Test Software



Step 2. Choose the Protocol Stack Routing Direction of 3G Data 22

Step 2a. Direct Data to 3G SAAL Decodes 23

Step 2b. Direct Data to 3G IuUP Decodes 25

Step 2c. Direct Data to 3G Iub or Iur Decodes 26




Getting Started with the J5458A 3G UMTS W-CDMA Test Software

This chapter shows you how to use the Agilent Advisor J5458A 3G UMTS W-CDMA Test Software to configure and use the Advisor 3G UMTS W-CDMA protocol decodes to troubleshoot and test 3G wireless communications systems.

The basic steps for getting started and using the test software to test 3G networks include:

1 Enable the software.

2 Choose the protocol stack routing direction of 3G data.

3 Set display filtering on 3G decodes.

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Getting Started with the Advisor J5458A 3G Test Software 2

Step 1. Enable the 3G Test Software

To enable the 3G Test Software, follow these steps:

1 Start the Advisor ATM application.

4 If the “Advisor with 3G UMTS W-CDMA Test Software” check box is selected, proceed to the next step.

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2 Click the Configuration button.

3 Click the License Software tab.



5 After you enter the license key number, 3G analysis and protocols are enabled, and you can access the UMTS tab.

7 In the Decode Table, when you add or edit an entry and then view the protocol stack, the 3G protocol decode stacks will appear.

6 Click the Decode Table tab.

8 Expand and examine the protocol stacks.

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You may need to select the appropriate stack based on your monitor point in the 3G UMTS network.



9 Display the Decode view to access the display filters.

10 Click the Filter button, and the Display Filter Properties dialog box appears.

11 Click the Protocol Stack tab to display the 3G filters.

12 Enable the display filters protocol stack.

The AAL-2 branch is accessible, and contains the FP and RRC filters. The SAAL branch includes ALCAP (AAL2SIG), NBAP, RANAP, and RNSAP.

13 Select the protocol you want to use.

By selecting any one of the protocols that you are interested in, you can filter and view that particular protocol stack of data only. When you select a display filter, other types of data will be filtered out, and will not be displayed.



Step 2. Choose the Protocol Stack Routing Direction of 3G Data

In the next several steps, you will direct the 3G data on ATM to the appropriate route. The appropriate route will be to any of these decode stacks:

• 3G SAAL

• 3G IuUP

• 3G Iub

• 3G Iur

If the data is over SAAL or over IuUP on AAL-2, no further configuration is needed.



Step 2a. Direct Data to 3G SAAL Decodes

The data you will be directing may include MTP3-b, SCCP, RANAP, RNSAP, NBAP, and ALCAP.

You will first check the Decode Table to see if the AUTO entry exists. Then, you will direct the data to 3G SAAL decodes. To do this, follow these steps:


2 Click the Decode Table tab.

3 Select the AUTO AAL-2 entry, if it exists.

4 Delete the AUTO AAL-2 entry.

Because there are not enough fixed field values to detect a pattern of data automatically, you cannot use the AUTO entry, and therefore must force the decodes into the correct path.



5 Select the Defaults entry so that you can edit it.

9 To decode MTP3-b or MTP3-b (TTC), select it in the protocol stack. Decodes over MTP3-b will be automatically detected after MTP3-b is decoded.

ALCAP, RANAP, SCCP, and RNSAP may occur over MTP3-b.

To decode NBAP, select NBAP in the protocol stack.

To decode ALCAP (AAL2SIG) over SAAL, select ALCAP (AAL2SIG) in the protocol stack.

6 Edit the Defaults entry.

8 Click the Protocol Stack tab, then expand the SAAL protocol stack.

10 When you are finished, click OK.

7 Click the ATM tab to change the VP.VC.



Step 2b. Direct Data to 3G IuUP Decodes

Note that the IuUP stack does not have any user configuration.

To direct the data to 3G IuUP decodes, follow these steps:

This area displays the currently selected protocol stack.

1 Click the Configuration

button.

2 Check the Decode Table, and delete the AUTO AAL-2 entry if it exists, as described in “Step 2a. Direct Data to 3G SAAL Decodes, page -23.”

4 Edit the Defaults entry in the Decode Table to change the Protocol Stack to AAL-2 –> IuUP. Then click OK.

6 Display the Decode view to examine the IuUP frames. RLP frames may occur over IuUP.

5 View the Decode Table tab, and notice that AAL changes to AAL-2, and the service changes from Auto LAN to IuUP.




Step 2c. Direct Data to 3G Iub or Iur Decodes

The Iub and Iur protocol stacks are almost identical, except for slight differences in the FP header. The user settings are the same. To direct the data to 3G Iub or Iur decodes, follow these steps:

Changing the Iub or Iur Data Framing

3G data is carried over the radio waves using transport channels, which are mapped in the physical layer to different physical channels. The TFI tables describe how the messages and data for 3G are blocked on a physical channel. The table entry that you create for a VP.VC.CID describes how the logical channels are mapped onto the physical channel.

To change the UMTS settings for the Iub or Iur data framing, you will update the TFI (Transport Format Identifier) tables. You can either load an existing TFI table using the File, Open (Load Data) menu selections, or create a new TFI table.

1 Click the Configuration

button.

2 Check the Decode Table.Delete the AUTO AAL-2 entry if it exists, as described in “Step 2a. Direct Data to 3G SAAL Decodes, page -23.”

4 Edit the Defaults entry in the Decode Table to change the Protocol Stack to AAL-2 -> Iub.

6 On the Decode Table tab, AAL changes to AAL-2, and the service changes from Auto LAN to Iub or Iur.

5 Click OK.




To change the Iub or Iur data framing, follow these steps:


3 Click the UMTS tab.

1 To load an existing TFI table, click File, then Open, and load the TFI table. Otherwise, you can create a new TFI table, as described in the following steps.

4 To create a new TFI table, click “FP TFI Tables...”.

6 In the FP TFI Table Configuration dialog box, change the Label to “3G Test Table”, or use another name.

7 Click “Add TFI...”.

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8 Enter values for the TFI, the number of transport blocks, and the bit size of the transport blocks for each TFI number.

9 Click OK until you return to the UMTS tab.

5 In the FP TFI Tables dialog box, click “Add TFI Table...”.



10 In the UMTS window, click “Add...” to add an entry to the list. The UMTS VP.VC Channel Configuration dialog box appears.

11 Change the label to “Iub Frame” or “Iur Frame”, depending on your selection, or use another name.

13 In the lower part of the dialog box, look at the FP TFI Tables list and make sure that Channel 1 is assigned to the TFI Table Name that you assigned.

12 Access the AAL-2 tab to change the Channel IDentifier (CID).

14 Click OK.

When you click OK, the UMTS window appears with this information: 1) a table entry named “Iub Frame” or “Iur Frame” that has all VPI.VCI.CIDs assigned to it, 2) the type of channel used by this VPI.VCI (the FP channel type), 3) the number of channels multiplexed on this VP.VC.CID, and 4) the assigned FP TFI Table named “3G Test Table” for each of the multiplexed channels.



Changing the ATM VP.VC and the AAL-2 CID

On the AAL-2 tab, the AAL-2 Channel ID (CID) specifies a channel within a VP.VC address. Channels on UMTS are designated as 0 through 255.

AAL-2 cell payloads carry mini-cells. An 8-bit CID field in the mini-cell header is used to identify the channel to which a mini-cell belongs. The CID in an AAL-2 mini-cell is similar to the VPI.VCI in an ATM cell.

To change the ATM VP.VC address and the AAL-2 CID, follow these steps:

1 Edit the entry you specified earlier.

The UMTS VP.VC Channel Configuration dialog box appears and displays the ATM and AAL-2 tabs.

2 Click the ATM tab and change the default values for VP and VC.

The VP.VC must match, or it must be included in the range of VP.VCs that you set in the Decode Table in order to direct the data to the Iub or Iur decodes.

3 Click the AAL-2 tab and change the CID value. Then click OK and return to the UMTS window.



Changing the UMTS Iub or Iur FP Type Settings

You can change these Iub or Iur channel configuration Framing Protocol (FP) parameters:

• Channel Types (Transport Channel and Logical Channel types)

• Link Type (Downlink, Uplink, or Both)

• Cell Type (Time Division Duplex or Frequency Division Duplex)

When you select Both for the Link Type, you must connect the Uplink side to Port 1 (or EQPT) on the interface card in the Advisor, and the Downlink side to Port 2 (or Line) on the interface card. The labels on the interface card will indicate either Port 1 and Port 2, or EQPT and Line.

To change the UMTS Iub or Iur FP Type settings, follow these steps:

1 Select the Link Type

2 When you have selected the Link Type, click OK.



Changing the UMTS Iub or Iur FP Multiplex Channels

When you add an FP entry, and the Transport Channel Type is set to “Dedicated Channel”, you can set the Number of Multiplexed Channels. Setting the Framing Protocol (FP) parameter for the Number of Multiplexed Channels can be complicated, because when you use a multiplexed channel setting other than “1”, you are requesting that the protocol decode look for more than one payload in the frame.

3 Click the Decode button to display the Decode view, you can see the Channel Type, Link Type, and Cell Type settings under the FP header.

4 Scroll through the detailed Decode view until you see the FP Header information. Then view the Channel Type, Link Type, and Cell Type settings in the FP Header.



To change the UMTS Iub or Iur FP multiplex channels, follow these steps:

2 View the channels and the associated tables. Then select a channel so that you can change the table associated with it.

1 Set the number of multiplexed channels (8 is the maximum).

3 Click “Edit TFI Table...” to select a different table to associate with the channel. Each channel is associated with one table.

4 Select the table you want to associate with the selected channel.

5 Click OK.



Changing the UMTS Iub or Iur MAC Logical Channel Type

The MAC protocol may be contained in each multiplexed channel payload in a Framing Protocol frame. If you do not configure this protocol, the logical channel type will be shown as the default, which is “Unknown” in the detailed Decode view of the MAC Header.

To change the UMTS Iub or Iur MAC logical channel type, follow these steps:

1 Change the Logical Channel Type from Unknown to one of the other available settings.

2 When you are finished, click OK.

3 Display the Decode view, then scroll through the detailed view until you see the Logical Channel Type in the FP Header.



Changing the UMTS Iub or Iur RLC Mode

The RLC protocol may be contained in each multiplexed channel payload in a Framing Protocol frame. If you do not configure the RLC mode, it will be shown as the default, which is “Unknown”, in the detailed Decode view.

To change the UMTS Iub or Iur RLC mode, follow these steps:

1 Select the RLC mode.

3 Click the Decode

view button, and look at the RLC header to see that the RLC mode changed.

2 When you have finished, click OK.



Step 3. Set Display Filtering on 3G Decodes

To filter a file that contains 3G data, follow these steps:

For AAL-5, the ALCAP display filters match both:AAL-5 -> SSCOP -> SSCF-UNI -> ALCAP (Iub)AAL-5 -> SSCOP -> SSCF-NNI -> MTP3-b -> ALCAP (Iu)

1 Use File, Load to load a file that contains 3G data.

2 In the Decode view, display the Summary view and/or the Detailed view.

3 Click the Filter button.

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4 Click the Protocol Stack tab.

5 Enable the protocol stack.

6 Expand the protocol stack and select the display filter you want to use.



To Filter SAAL Stacks

To filter SAAL stacks, follow these steps:

If the file you are using does not contain frames that have these protocols, a message box appears to indicate this.

1 In the Decode view, click the Filter button to view the display filters properties.


4 To filter SAAL stacks, expand the SAAL branch.

5 To filter on ALCAP (AAL2SIG), select the ALCAP (AAL2SIG) filter.

To filter on NBAP, select the NBAP filter.To filter on RANAP, select the RANAP filter.To filter on RNSAP, select the RNSAP filter.

6 After you select a display filter, click

the Decode view button, and only the frames that have the protocol display filter you selected are displayed.

3 Enable the Protocol Stack.



To Filter AAL-2 Stacks

To filter AAL-2 stacks, follow these steps:

If your file does not contain frames that have these protocols, a message box appears to indicate this.

1 In the Decode view, click the Filter button to view the display filters properties.


3 Enable the Protocol Stack.

4 To filter AAL-2 stacks, expand the AAL-2 branch.

5 Select either the FP filter or the RRC filter.

6 After you select a display filter, click

the Decode view button, and only the frames that have FP or RRC decoded are displayed.




3Getting Started with the Network Analyzer J6842A 3G Test Software



Step 2a. Choose the Protocol Stack Encapsulation of 3G Data 44

Step 2b. Add an Encapsulation for 3G SAAL Decodes 46

Step 2c. Add an Encapsulation for 3G IuUP Decodes 47

Step 2d. Add an Encapsulation for 3G FP-Iub or FP-Iur Decodes 48




Getting Started with the J6842A 3G UMTS W-CDMA Test Software

When testing and troubleshooting 3G wireless communications systems, you may need to select the appropriate stack based on your monitor point in the 3G UMTS network. This chapter shows you how to use the Agilent J6842A 3G UMTS W-CDMA Test Software to configure and use the Network Analyzer 3G UMTS W-CDMA protocol decodes to troubleshoot and test 3G wireless communications systems.

The basic steps for getting started and using the test software to test 3G networks include:

1 Enable the software.

2 Choose the protocol stack routing direction of 3G data.

3 Set display filtering on 3G decodes.

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Getting Started with the Network Analyzer J6842A 3G Test Software 3

Step 1. Enable the 3G Test Software

You must license the software before you can use it.

1 Start the Network Analyzer Software.

4 If the “Network Analyzer with 3G UMTS W-CDMA Test Software” check box is selected, proceed to the next step.

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3 Click the License Software tab.

After you enter the license key number, 3G analysis and protocols are enabled.

PF Proprietary ProtocolA proprietary customer license, for Agilent use only (called PF Proprietary Protocol), appears in the License Software tab.



Step 1a. Viewing the Data and Encapsulations

Get familiar with the Decode view and the Encapsulations view.

1 Select the Decode View to display live ATM traffic, or load an ATM data file and view the data.

3 The Table Entry buttons allow you to add a user-defined encapsulation or modify existing encapsulation definitions.

2 Access the Configuration window, then select the Encapsulations tab.



Step 1b. Filtering the Data

Get familiar with the Filter button in the Decode view.



3 Select to use the Protocol Filters to display the 3G filters.

By selecting any one of the protocols, you can filter and view that particular protocol stack of data only. When you select a display filter, other types of data will be filtered out, and will not be displayed.

4 Select the specific 3G protocol filters.

5 View the filtered data in the Decode view.



Step 2a. Choose the Protocol Stack Encapsulation of 3G Data

In the next several steps, you will direct the 3G data on ATM to the appropriate route. The appropriate route will be to any of these Network Analyzer protocol decode stacks:

• 3G SAAL • 3G IuUP • 3G Iub • 3G Iur

What is an Encapsulation?

The term "encapsulation" generally refers to the process of inserting a data frame, cell, or packet from a higher layer protocol into a frame, cell, or packet of a lower layer protocol. For example, IP packets at the Network layer are encapsulated into Frame Relay frames at the Data Link layer prior to transport across a Frame Relay network. In general, it is the responsibility of the sending device/application to encapsulate data, and the receiving device/application to remove header information to extract the original data. For the Network Analyzer, when you define an encapsulation, you provide a way for the Network Analyzer to interpret the encapsulation of the incoming data, such as ATM -> AAL-5 -> SAAL.

In this chapter, you will add encapsulations for SAAL Decodes, IuUP Decodes, and FP-Iub or FP-Iur Decodes.

How to Add an Encapsulation

When adding an encapsulation, in the protocol stacks:

• AAL2 contains MPAAL5, SSTED, FP-Iub, FP-Iur, and IuUP stacks.

• AAL5 contains SAAL, which includes MTP3-b, MTP3-b (TTC), ALCAP (AAL2SIG), NBAP, and AutoUMTS.



Now you can add 3G UMTS encapsulations for the Network Analyzer to interpret the encapsulations of incoming data.

2 Select the ATM encapsulation, then expand and examine the AAL2 Frames and AAL5 Frames protocol stacks.

3 To define an encapsulation to be used on incoming traffic, click the protocols that you want to use, then click OK. The encapsulations will appear in the Encapsulations table.

When selecting FP-Iub or FP-Iur in AAL2 Frames, you can define the Framing Protocol Transport Format Identifier (FP TFI) tables.

1 Click the Encapsulations tab in the Configuration window, then click Add to define an encapsulation.

When you select ATM, the right pane displays the VPI.VCI entry fields. This is where you select the VPI.VCI(s) to which you want to apply the encapsulation.

At the AAL-2 level, when you select AAL2 Frames, you can enter a CID range in the right pane that appears.



Step 2b. Add an Encapsulation for 3G SAAL Decodes

By adding an encapsulation for 3G SAAL decodes, you direct the incoming data to those decodes in the Network Analyzer. The SAAL stack does not have any user configuration.

1 In the Encapsulation Properties tab, select and expand the AAL5 Frames stack, select SAAL, and a protocol (MTP3-b, for example).

The data you will be directing may include MTP3-b, MTP3-b (TTC), ALCAP (AAL2SIG), and NBAP.

3 View the encapsulation in the Encapsulations table. Several of the sample encapsulations shown here allow the Network Analyzer to interpret the encapsulation of the incoming data over the MTP3-b and ALCAP protocols on the SAAL stack.

2 Enter a name for the new encapsulation, then click OK.

4 Examine the decoded SAAL frames in the Decode view.



Step 2c. Add an Encapsulation for 3G IuUP Decodes

By adding an encapsulation for 3G IuUP decodes, you direct the incoming data to those decodes in the Network Analyzer. The IuUP stack does not have any user configuration.

1 In the Encapsulation Properties tab, select and expand the AAL2 Frames stack, then select IuUP.

2 Enter a name for the new encapsulation, then click OK.

4 Examine the decoded IuUP frames in the Decode view.

3 View the encapsulation in the Encapsulations table.



Step 2d. Add an Encapsulation for 3G FP-Iub or FP-Iur Decodes

By adding an encapsulation for 3G Iub or Iur decodes in the AAL-2 stack, you direct the incoming data to those decodes in the Network Analyzer. The Iub and Iur protocol stacks are almost identical, except for slight differences in the FP header. The user settings are the same.

1 In the Encapsulation Properties tab, select and expand the AAL2 Frames stack, then select FP-Iub. (You can rename the encapsulation later.)

Sample encapsulations in the Encapsulations table are shown here. The following pages show you how to define them for FP-Iub.

2 You can click Edit to rename an encapsulation either when you first enter the Encapsulation Properties window or after the encapsulation has been defined.



Changing the Iub or Iur Data Framing

3G data is carried over the radio waves using transport channels, which are mapped in the physical layer to different physical channels. The TFI tables describe how the messages and data for 3G are blocked on a physical channel. The table entry that you create for a VP.VC.CID describes how the logical channels are mapped onto the physical channel.

To change the settings for the Iub or Iur data framing, you update the TFI (Transport Format Identifier) tables. You can either load an existing TFI table using the File, Open (Load Data) menu selections, or create a new TFI table.

1 Select to either edit an existing Framing Protocol Transport Format Identifier (FP TFI) table or add a new table.

3 If you want to edit an existing table, highlight the table in the list.

2 If you want to add a new table, click Add TFI Table. A new dialog box appears, allowing you to define a new table.

4 Click Edit TFI Table. The Edit FP TFI Table Configuration dialog box appears.

You can change the name of the table, and add a new Transport Format Identifier (TFI) to the existing table or edit an existing TFI in the table, as described next.



5 To add a new Transport Format Identifier to the existing table, click Add TFI, then enter the values in the Add FP TFI Configuration dialog box for the TFI number and the number and size of the transport blocks.

6 To edit an existing TFI, highlight the TFI, then click Edit TFI.

8 When you are finished adding or editing TFIs for the selected table, click OK to return to the FP TFI Tables dialog box.

10 When you are finished working with the FP TFI tables, click OK.

9 If you want to remove a table from the list, highlight the table, then click Delete TFI Table.

7 For the selected TFI, enter values for the number of transport blocks and the bit size of the transport blocks.

Maximum Number of TFIsYou can have a maximum of 32 TFIs in a table.



11 To set the number of multiplexed channels, you can change the number to a maximum of 8. You can assign a different table to each channel that you have assigned,

12 To assign a different FP TFI table to a particular channel, click Edit Channel.

13 You can change the TFI Table assigned to the channel.

14 You can change the Logical Channel Type. See the note below on Logical Channel Type.

16 When you are finished editing the channel, click OK.

Logical Channel TypeThe MAC protocol may be contained in each multiplexed channel payload in a Framing Protocol frame. If you do not configure this protocol, the logical channel type will be shown as the default, which is “Unknown” in the detailed Decode view of the MAC Header.

RLC ModeThe RLC protocol may be contained in each multiplexed channel payload in a Framing Protocol frame. If you do not configure the RLC mode, it will be shown as the default, which is “Unknown”, in the detailed Decode view.

15 You can change the RLC mode. See the note below on RLC Mode.

17 Display the Decode view, then scroll through the detailed view until you see the Logical Channel Type in the FP Header. Then view the RLC header to see that the RLC mode changed.



Changing the ATM VP.VC and the AAL-2 CID

A VPI.VCI and AAL-2 Channel ID (CID) are assigned to each encapsulation. Channels on UMTS are designated as 0 through 255. The AAL-2 CID specifies a channel within a VP.VC address.

To change the VPI.VCI and the AAL-2 CID, follow these steps:

Note: AAL-2 cell payloads carry mini-cells. An 8-bit CID field in the mini-cell header is used to identify the channel to which a mini-cell belongs. The CID in an AAL-2 mini-cell is similar to the VPI.VCI in an ATM cell.

1 Highlight an encapsulation.

2 Click Edit. The Encapsulation Properties dialog box appears.

4 Change the Virtual Path Range (VPI) and the Virtual Channel Range (VCI) for the ATM Header.

3 Highlight the ATM stack.

5 Highlight the AAL2 Frames stack.

6 Change the Channel Identifier Range (CID), then click OK.



Step 3. Set Display Filtering on 3G Decodes

To filter a file that contains 3G data, follow these steps:



3 Select Protocol Filters, then 3G to use the 3G filters.

4 Select the specific 3G filters.

5 View the filtered data in the Decode view.




Index

Numerics3G, 10

data directed to decodes, 22, 44defined, 10

3G test software, 10

AAAL-2 branch

in display filters, 21AAL-2 CID, changing, 29, 52AAL-2 filtering, 37adding

TFI table, 27Advisor ATM application, 19ALCAP (AAL2SIG) filtering, 36ATM transport network layer, 11ATM VP.VC, changing, 29, 52

Bbasic steps for getting started, 18, 40

CCell Type in UMTS Iub, 30changing

ATM VP.VC, 29, 52Channel Type in UMTS Iub, 30channels

multiplexed, 31on UMTS, 29, 52

configurationnot for SAAL, IuUP on AAL-2, 22

Configuration button, 19, 23, 41control planes, decodes, 14

Ddata

choosing direction to decodes, 22, 44directed to Iur decodes, 26, 48directed to IuUP decodes, 25, 26, 27

Decode TableAAL-2 protocol stack, 20SAAL protocol stack, 20

decodes for 3G, 14decoding

ALCAP (AAL2SIG), 24MTP3-b, 24NBAP, 24

decoding Iu, Iub, Iur, 11deleting AUTO entry, 23, 25, 26direct the 3G data, 22, 44display filtering

Filter button, 35on 3G decodes, 35, 53properties dialog box, 35

display filtersAAL-2 branch, 21protocol stack, 21SAAL branch, 21

display filters in Decode view, 21, 43, 53

Eenabling

display filtering protocol stack, 35entering

software license key, 19, 41

Ffiltering

AAL-2 stacks, 37ALCAP (AAL2SIG), 36NBAP, 36RANAP, 36RNSAP, 36SAAL stacks, 36

FP headerdifferences in Iur and Iub, 26, 48

FP header settings, 31framing protocol (FP), 30

Ggetting started, 18, 40

IIMT-2000 services, 14ITU Recommendation, 14Iub data framing, 26, 49Iur protocol stack, 26, 48

Kkey for software license, 19, 41

Llicense software, 19, 41Link Type in UMTS Iub, 30loading

existing TFI table, 27

MMAC logical channel type, 33multiplexed channels, 31


Index

NNBAP filtering, 36Network Analyzer Software, 41number of multiplexed channels, 31

Pplanes for Iu, Iub, 14protocol decodes, 10, 11

Rradio access networks, 10, 11RANAP filtering, 36RLC mode, 34RNSAP filtering, 36

SSAAL branch

in display filters, 21SAAL protocol stack, 44searching Iu, Iub, Iur, 11software licensing, 19, 41

TTFI table

adding, 27configuration, 27defining transport blocks, 27list in UMTS VP.VC channel config, 28loading, 27setting size of transport blocks, 27setting TFI number, 27

TFI, TFI tables, 26, 49troubleshooting networks, 11

UUMTS

channels 1-255, 29, 52defined, 10Iub FP multiplex channels,

changing, 31Iub FP type, changing, 30Iub MAC logical channel, changing, 33Iub RLC mode, changing, 34VP.VC channel configuration, 28

UMTS tab, 20user planes, decodes, 14

WW-CDMA defined, 10


3G UMTS W-CDMA Test Software Guide

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