Getting Started Guide
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3G UMTS W-CDMA Getting Started Guide 5 6 3G UMTS W-CDMA Getting Started Guide 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 26 Changing the ATM VP.VC and the AAL-2 CID 29 Changing the UMTS Iub or Iur FP Type Settings 30 Changing the UMTS Iub or Iur FP Multiplex Channels 31 Changing the UMTS Iub or Iur MAC Logical Channel Type 33 Changing the UMTS Iub or Iur RLC Mode 34 Step 3. Set Display Filtering on 3G Decodes 35 To Filter SAAL Stacks 36 To Filter AAL-2 Stacks 37
3 Getting Started with the Network Analyzer J6842A 3G Test Software Getting Started with the J6842A 3G UMTS W-CDMA Test Software 40 Step 1. Enable the 3G Test Software 41
3G UMTS W-CDMA Getting Started Guide 7 Step 1a. Viewing the Data and Encapsulations 42 Step 1b. Filtering the Data 43 Step 2a. Choose the Protocol Stack Encapsulation of 3G Data 44 What is an Encapsulation? 44 How 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 49 Changing the ATM VP.VC and the AAL-2 CID 52 Step 3. Set Display Filtering on 3G Decodes 53
Index
8 3G UMTS W-CDMA Getting Started Guide 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
Agilent Technologies 9 1 Introduction to 3G UMTS W-CDMA
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
10 3G UMTS W-CDMA Getting Started Guide 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.
3G UMTS W-CDMA Getting Started Guide 11 1 Introduction to 3G UMTS W-CDMA
The Radio Access Network (RAN) resembles:
Sample Test A sample test case displaying the Iu and Iub interfaces is shown Scenario here:
POS Uu Iub Iu ATM Radio Mobile User Node B Network Equipment Switching ATM Controller ATM Center PSTN 1.5, 2, 6.3 Mbps 52, 155 Mbps others
Agilent Advisor
12 3G UMTS W-CDMA Getting Started Guide Introduction to 3G UMTS W-CDMA 1
Overview of GSM, An overview of the GSM (Global System for Mobile GPRS, and UMTS Communications), GPRS (General Packet Radio System), and UMTS (Universal Mobile Telecommunication Services) is shown here: **60*3568076 6WDQGDUGHYROXWLRQ
&LUFXLWVZLWFKHG Mobile Device Radio Access Network Core Network (mobile)
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3G UMTS W-CDMA Getting Started Guide 13 1 Introduction to 3G UMTS W-CDMA
Decodes for 3G UMTS W-CDMA
7KHGHFRGHVIRU*8076:&'0$LQFOXGH
Iub User Plane AAL-2 / FP / MAC / RLC/PDCP AAL-2 / FP / MAC / RLC/BMC
Iub Control Plane AAL-5 / SSCOP / SSCF-UNI / ALCAP (AAL2SIG) AAL-5 / SSCOP / SSCF-UNI / NBAP AAL-2 / FP / MAC / RLC / RRC / NAS
Iu User Plane AAL-2 / IuUP / RLP AAL-5 / IP / UDP / GTP-u/IuUP
Iu Control Plane AAL-5 / SSCOP / SSCF / MTP3-b / ALCAP (AAL2SIG) AAL-5 / SSCOP / SSCF / MTP3-b / SCCP / RANAP / NAS AAL-5 / SSCOP / SSCF / MTP3-b / SCCP / RNSAP AAL-5 / IP / SCTP
For Further For details about the IMT-2000 services, see the ITU’s Information Recommendation ITU-R M.816-1, or contact the International Telecommunication Union (ITU) for more information about the recommendation.
14 3G UMTS W-CDMA Getting Started Guide Introduction to 3G UMTS W-CDMA 1
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)
3G UMTS W-CDMA Getting Started Guide 15 1 Introduction to 3G UMTS W-CDMA
16 3G UMTS W-CDMA Getting Started Guide 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 Step 3. Set Display Filtering on 3G Decodes 35
Agilent Technologies 17 2 Getting Started with the Advisor J5458A 3G Test Software
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. 7KHVHVWHSVDUHGHVFULEHGLQGHWDLOLQWKLVFKDSWHU
18 3G UMTS W-CDMA Getting Started Guide 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.
2 Click the Configuration button.
3 Click the License Software tab.
4 If the “Advisor with 3G UMTS W-CDMA Test Software” check box is selected, proceed to the next step. Ds ur purpx i v ryrprq purpx v hq rr ur yvprr xr h ur Uur yvprr xr ir v u ur yvprr xr uvrq vu "B r sh r
3G UMTS W-CDMA Getting Started Guide 19 2 Getting Started with the Advisor J5458A 3G Test Software
5 After you enter the license key number, 3G analysis and protocols are enabled, and you can access the UMTS tab.
6 Click the Decode Table 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.
8 Expand and examine the protocol stacks. 66G! vyy uhr Di DVQ hq D hpx T66G vyy uhr ur HUQ"i HUQ"i UU8 I76Q You may need to select the appropriate 6G86Q 66G!TDB hq 6VHUT stack based on your monitor point in the 3G UMTS network.
20 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
10 Click the Filter button, and 9 Display the Decode view to the Display Filter Properties access the display filters. dialog box appears.
11 Click the Protocol Stack tab to display the 3G filters.
12 Enable the display filters protocol stack. 13 Select the protocol you want The AAL-2 branch is to use. accessible, and contains the FP and By selecting any one of the RRC filters. The SAAL protocols that you are branch includes ALCAP interested in, you can filter (AAL2SIG), NBAP, and view that particular RANAP, and RNSAP. protocol stack of data only. When you select a display filter, other types of data will be filtered out, and will not be displayed.
3G UMTS W-CDMA Getting Started Guide 21 2 Getting Started with the Advisor J5458A 3G Test Software
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.
22 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
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:
1 Click the Configuration button.
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.
3G UMTS W-CDMA Getting Started Guide 23 2 Getting Started with the Advisor J5458A 3G Test Software
5 Select the Defaults entry so that you can edit it.
6 Edit the Defaults entry.
7 Click the ATM tab to change the VP.VC.
8 Click the Protocol Stack tab, then expand the SAAL protocol stack.
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, 10 When you are finished, click OK. select ALCAP (AAL2SIG) in the protocol stack.
24 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
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: 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 3 Click the ATM Data to 3G SAAL Decodes, tab to change page -23.” the VP.VC.
4 Edit the Defaults entry in the Decode Table to change the Protocol Stack to AAL-2 –> IuUP. Then click OK. This area displays the currently 5 View the Decode Table tab, selected protocol and notice that AAL changes stack. to AAL-2, and the service changes from Auto LAN to IuUP.
6 Display the Decode view to examine the IuUP frames. RLP frames may occur over IuUP.
3G UMTS W-CDMA Getting Started Guide 25 2 Getting Started with the Advisor J5458A 3G Test Software
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: Click the Configuration 1 3 Click the ATM tab to change the VP.VC. 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.
5 Click OK.
6 On the Decode Table tab, AAL changes to AAL-2, and the service changes from Auto LAN to Iub or Iur.
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.
26 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
To change the Iub or Iur data framing, follow these steps:
1 To load an existing TFI table, click File, then 2 Click the Open, and load the TFI Configuration 3 Click the UMTS tab. table. Otherwise, you button. can create a new TFI table, as described in the following steps. 4 To create a new TFI table, click “FP TFI Tables...”.
5 In the FP TFI Tables dialog box, click “Add TFI Table...”.
6 In the FP TFI Table Configuration dialog box, change the Label to “3G Test Table”, or use another name.
7 Click “Add TFI...”. 8 Enter values for the Uur 6qq AQ UAD 9 Click OK until TFI, the number of 8svt hv qvhyt you return to transport blocks, i hrh the UMTS and the bit size of tab. the transport blocks for each TFI number.
3G UMTS W-CDMA Getting Started Guide 27 2 Getting Started with the Advisor J5458A 3G Test Software
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 12 Access the AAL-2 tab selection, or use another name. to change the Channel IDentifier (CID).
13 In the lower part of the dialog box, look 14 Click OK. at the FP TFI Tables list and make sure When you click OK, the UMTS window appears that Channel 1 is with this information: assigned to the TFI 1) a table entry named “Iub Frame” or “Iur Table Name that you Frame” that has all VPI.VCI.CIDs assigned to it, assigned. 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.
28 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
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. 2 Click the ATM tab and change the default values for The UMTS VP.VC Channel VP and VC. Configuration dialog box appears and displays the ATM and AAL-2 The VP.VC must match, or it must be included in the tabs. 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.
3G UMTS W-CDMA Getting Started Guide 29 2 Getting Started with the Advisor J5458A 3G Test Software
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.
30 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
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.
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.
3G UMTS W-CDMA Getting Started Guide 31 2 Getting Started with the Advisor J5458A 3G Test Software
To change the UMTS Iub or Iur FP multiplex channels, follow these steps:
1 Set the number of multiplexed channels (8 is the maximum).
2 View the channels and the associated tables. Then select a channel so that you can change the table associated with it.
3 Click “Edit TFI Table...” to select a different Click OK. table to associate with 4 Select the table 5 the channel. Each you want to channel is associated associate with with one table. the selected channel.
32 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
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.
3G UMTS W-CDMA Getting Started Guide 33 2 Getting Started with the Advisor J5458A 3G Test Software
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.
2 When you have 3 Click the Decode finished, click OK. view button, and look at the RLC header to see that the RLC mode changed.
34 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
Step 3. Set Display Filtering on 3G Decodes
To filter a file that contains 3G data, follow these steps:
1 Use File, Load to load a file that contains 3G data.
3 Click the Filter button. Uur 9vyh Avyr Q r vr qvhyt i hrh
2 In the Decode view, display the Summary view and/or the Detailed view.
4 Click the Protocol Stack tab.
5 Enable the protocol stack.
6 Expand the protocol stack For AAL-5, the ALCAP display filters match both: and select the display filter AAL-5 -> SSCOP -> SSCF-UNI -> ALCAP (Iub) you want to use. AAL-5 -> SSCOP -> SSCF-NNI -> MTP3-b -> ALCAP (Iu)
3G UMTS W-CDMA Getting Started Guide 35 2 Getting Started with the Advisor J5458A 3G Test Software
To Filter SAAL Stacks
To filter SAAL stacks, follow these steps:
1 In the Decode view, click the Filter button to view the display filters properties.
2 Click the Protocol Stack tab.
3 Enable the Protocol Stack.
4 To filter SAAL stacks, expand the SAAL branch.
5 To filter on ALCAP (AAL2SIG), select the ALCAP (AAL2SIG) filter. 6 After you select a display filter, click To filter on NBAP, select the NBAP filter. To filter on RANAP, select the RANAP the Decode view button, and filter. only the frames that have the protocol To filter on RNSAP, select the RNSAP display filter you selected are filter. displayed.
If the file you are using does not contain frames that have these protocols, a message box appears to indicate this.
36 3G UMTS W-CDMA Getting Started Guide Getting Started with the Advisor J5458A 3G Test Software 2
To Filter AAL-2 Stacks
To filter AAL-2 stacks, follow these steps:
1 In the Decode view, click the Filter button to view the display filters properties.
2 Click the Protocol Stack tab.
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.
If your file does not contain frames that have these protocols, a message box appears to indicate this.
3G UMTS W-CDMA Getting Started Guide 37 2 Getting Started with the Advisor J5458A 3G Test Software
38 3G UMTS W-CDMA Getting Started Guide 3 Getting Started with the Network Analyzer J6842A 3G Test Software
Getting Started with the J6842A 3G UMTS W-CDMA Test Software 40 Step 1. Enable the 3G Test Software 41 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 Step 3. Set Display Filtering on 3G Decodes 53
Agilent Technologies 39 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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. 7KHVHVWHSVDUHGHVFULEHGLQGHWDLOLQWKLVFKDSWHU
40 3G UMTS W-CDMA Getting Started Guide 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. 2 Click the Configuration button.
3 Click the License Software tab.
4 If the “Network Analyzer with 3G UMTS W-CDMA Test Software” check box is selected, proceed to the next step. Ds ur purpx i v ryrprq purpx v hq rr ur yvprr xr h ur Uur yvprr xr ir v u ur yvprr xr uvrq vu "B r sh r
After you enter the license key number, PF Proprietary Protocol 3G analysis and protocols are enabled. A proprietary customer license, for Agilent use only (called PF Proprietary Protocol), appears in the License Software tab.
3G UMTS W-CDMA Getting Started Guide 41 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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.
2 Access the Configuration window, then select the Encapsulations tab.
3 The Table Entry buttons allow you to add a user-defined encapsulation or modify existing encapsulation definitions.
42 3G UMTS W-CDMA Getting Started Guide Getting Started with the Network Analyzer J6842A 3G Test Software 3
Step 1b. Filtering the Data
Get familiar with the Filter button in the Decode view.
1 Display the Decode view to 2 Click the Filter button, and the Display access the display filters. Filter Properties dialog box appears.
3 Select to use the Protocol Filters to display the 3G filters.
4 Select the specific 3G protocol filters.
By selecting any one of the protocols, you can filter and view that particular 5 View the filtered data protocol stack of data only. When you in the Decode view. select a display filter, other types of data will be filtered out, and will not be displayed.
3G UMTS W-CDMA Getting Started Guide 43 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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.
44 3G UMTS W-CDMA Getting Started Guide Getting Started with the Network Analyzer J6842A 3G Test Software 3
1 Click the Encapsulations tab in the Configuration window, then click Add to define an encapsulation.
When you select ATM, 2 Select the ATM the right pane displays encapsulation, then the VPI.VCI entry fields. expand and examine the This is where you select AAL2 Frames and AAL5 the VPI.VCI(s) to which Frames protocol stacks. 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.
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.
Now you can add 3G UMTS encapsulations for the Network Analyzer to interpret the encapsulations of incoming data.
3G UMTS W-CDMA Getting Started Guide 45 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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.
2 Enter a name for the new encapsulation, then click OK.
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.
4 Examine the decoded SAAL frames in the Decode view.
46 3G UMTS W-CDMA Getting Started Guide Getting Started with the Network Analyzer J6842A 3G Test Software 3
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.
3 View the encapsulation in the Encapsulations table.
4 Examine the decoded IuUP frames in the Decode view.
3G UMTS W-CDMA Getting Started Guide 47 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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.
48 3G UMTS W-CDMA Getting Started Guide Getting Started with the Network Analyzer J6842A 3G Test Software 3
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.
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 3 If you want to edit an name of the table, existing table, highlight and add a new the table in the list. Transport Format Identifier (TFI) to the existing table or edit an existing TFI in the table, as described next.
3G UMTS W-CDMA Getting Started Guide 49 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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.
Maximum Number of TFIs You can have a maximum of 32 TFIs in a table.
7 For the selected TFI, enter values for the number of transport blocks and the bit size of the transport blocks. 8 When you are finished adding or editing TFIs for the selected table, click OK to return to the FP TFI Tables dialog box.
9 If you want to remove a table from the list, highlight the table, then click Delete TFI Table.
10 When you are finished working with the FP TFI tables, click OK.
50 3G UMTS W-CDMA Getting Started Guide Getting Started with the Network Analyzer J6842A 3G Test Software 3
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.
When you are finished 15 You can change the RLC mode. See 16 the note below on RLC Mode. editing the channel, click OK.
17 Display the Decode view, then scroll through the detailed view until you see Logical Channel Type the Logical Channel Type in the FP The MAC protocol may be contained in each Header. Then view the RLC header to see multiplexed channel payload in a Framing that the RLC mode changed. Protocol frame. If you do not configure this protocol, the logical channel type will be shown RLC Mode as the default, which is “Unknown” in the The RLC protocol may be contained in each detailed Decode view of the MAC Header. 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.
3G UMTS W-CDMA Getting Started Guide 51 3 Getting Started with the Network Analyzer J6842A 3G Test Software
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:
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.
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. 6 Change the The CID in an AAL-2 mini-cell is Channel Identifier similar to the VPI.VCI in an ATM cell. Range (CID), then click OK.
52 3G UMTS W-CDMA Getting Started Guide Getting Started with the Network Analyzer J6842A 3G Test Software 3
Step 3. Set Display Filtering on 3G Decodes
To filter a file that contains 3G data, follow these steps:
1 Display the Decode view to 2 Click the Filter button, and the Display access the display filters. Filter Properties dialog box appears.
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.
3G UMTS W-CDMA Getting Started Guide 53 3 Getting Started with the Network Analyzer J6842A 3G Test Software
54 3G UMTS W-CDMA Getting Started Guide Index
Numerics D F 3G,10 data filtering data directed to decodes, 22, 44 choosing direction to decodes, 22, 44 AAL-2 stacks,37 defined,10 directed to Iur decodes, 26, 48 ALCAP (AAL2SIG),36 3G test software,10 directed to IuUP decodes, 25, 26, 27 NBAP,36 Decode Table RANAP,36 A AAL-2 protocol stack,20 RNSAP,36 SAAL protocol stack,20 SAAL stacks,36 AAL-2 branch decodes for 3G,14 FP header in display filters,21 decoding differences in Iur and Iub, 26, 48 AAL-2 CID, changing, 29, 52 ALCAP (AAL2SIG),24 FP header settings,31 AAL-2 filtering,37 MTP3-b,24 framing protocol (FP),30 adding NBAP,24 TFI table,27 decoding Iu, Iub, Iur,11 G Advisor ATM application,19 deleting AUTO entry, 23, 25, 26 ALCAP (AAL2SIG) filtering,36 direct the 3G data, 22, 44 getting started, 18, 40 ATM transport network layer,11 display filtering ATM VP.VC, changing, 29, 52 Filter button,35 I on 3G decodes, 35, 53 B properties dialog box,35 IMT-2000 services,14 display filters ITU Recommendation,14 basic steps for getting started, 18, 40 AAL-2 branch,21 Iub data framing, 26, 49 protocol stack,21 Iur protocol stack, 26, 48 C SAAL branch,21 display filters in Decode view, 21, 43, 53 K Cell Type in UMTS Iub,30 changing E key for software license, 19, 41 ATM VP.VC, 29, 52 Channel Type in UMTS Iub,30 enabling L channels display filtering protocol stack,35 multiplexed,31 entering license software,19, 41 on UMTS, 29, 52 software license key, 19, 41 Link Type in UMTS Iub,30 configuration loading not for SAAL, IuUP on AAL-2,22 existing TFI table,27 Configuration button, 19, 23, 41 control planes, decodes,14 M MAC logical channel type,33 multiplexed channels,31
3G UMTS W-CDMA Getting Started Guide 55 Index
N U NBAP filtering,36 UMTS Network Analyzer Software,41 channels 1-255, 29, 52 number of multiplexed channels,31 defined,10 Iub FP multiplex channels, P changing,31 Iub FP type, changing,30 planes for Iu, Iub,14 Iub MAC logical channel, changing,33 protocol decodes, 10, 11 Iub RLC mode, changing,34 VP.VC channel configuration,28 R UMTS tab,20 user planes, decodes,14 radio access networks, 10, 11 RANAP filtering,36 W RLC mode,34 RNSAP filtering,36 W-CDMA defined,10
S SAAL branch in display filters,21 SAAL protocol stack,44 searching Iu, Iub, Iur,11 software licensing, 19, 41
T TFI table adding,27 configuration,27 defining transport blocks,27 list in UMTS VP.VC channel config,28 loading,27 setting size of transport blocks,27 setting TFI number,27 TFI, TFI tables,26, 49 troubleshooting networks,11
56 3G UMTS W-CDMA Getting Started Guide