CS8Mobile Device Test System. CS8-TS-LTE-LTE-RRM User Manual

Transcription

1 CS8Mobile Device Test System CS8-TS-LTE-LTE-RRM User Manual

2 Spirent 541 Industrial Way West Eatontown, NJ07724USA Web: AMERICAS1-800-SPIRENT EUROPE AND THE MIDDLE EAST+44 (0) ASIA AND THE PACIFIC This manual applies to CS8 Version 1.20 or higher. Page Part Number: , Version A0 Copyright 2012 Spirent. All Rights Reserved. All of the company names and/or brand names and/or product names referred to in this document, in particular, the name Spirent and its logo device, are either registered trademarks or trademarks of Spirent plc and its subsidiaries, pending registration in accordance with relevant national laws. All other registered trademarks or trademarks are the property of their respective owners. The information contained in this document is subject to change without notice and does not represent a commitment on the part of Spirent. The information in this document is believed to be accurate and reliable; however, Spirent assumes no responsibility or liability for any errors or inaccuracies that may appear in the document.

3 Table of Contents 1. Introduction Overview Support Information References Test Execution Diagram LTE-LTE Dual Cell Idle Mode Testing Overview Supported Platforms Customizing Test Cases Additional Information... 6

4 1. Introduction 1.1. Overview Spirent CS8 Mobile device Test System comes with Reference Test Packs for testing LTE- LTE Dual Cell Idle Mode based scenarios. This test pack provides test environment ready for testing LTE-LTE Dual Cell Idle mode scenarios with minimum customization. It also provides various possibilities that can be explored in this versatile tool kit. Sub Feature Cell Selection, Intra E-UTRAN, Serving cell becomes nonsuitable Cell reselection to different frequency band Test Case No. Test Objective 3601 UE does not do cell reselection when serving cell and neighboring cell power becomes same and (Sserving cell<=sintrasearch) UE does the cell reselection on intra frequency neighboring cell when serving cell power becomes less and (Sserving cell<sintrasearch) UE performs the cell reselection on an inter-frequency neighboring cell when serving cell power decreases and (Sserving cell<sneighboringcell) UE performs cell reselection on cells with different frequency Support Information If you have any questions or concerns, contact Spirent Technical Support at support.spirent.com, or by phone at SPIRENT References [1] Test Manager User Manual [2] CS8 Development Library SDK API Reference Manual [3] CS8 Development Library UI 2.0 User Manual [4] CS8 Test Sets Reference Manual [5] CS8 Reference Test Sets User Manual

5 Chapter One: Introduction Test Execution Diagram The diagram below presents the sequence of operations performed during the execution of a test suite from Test Manager. Start Session Validate Suite Failure Success Connect to the Instruments Success Execute Tests Failure Disconnect from Instruments End Session

6 2. LTE-LTE Dual Cell Idle Mode Testing 2.1. Overview This test pack is designed to provide test scenarios for testing LTE-LTE Dual Cell Idle mode feature. Keeping mobility with idle mode in mind, this test suite provides both success and negative scenarios to test UE s behavior. In field scenario, geographical area is divided into various cells for better coverage and manageability. Considering dual LTE cell scenario, UE in idle-mode, has to perform cell reselection if it is at the cell boundary or any of the reselection criteria is satisfied. Hence, it is very important to evaluate this procedure, as the impact is on maintaining overall connectivity of UE to the LTE network while in Idle Mode. The decision points to perform cell reselection needs to be evaluated and with precision. The LTE-LTE Idle Mode Test Pack enables you to test UE for various Cell Reselection scenarios ranging from cell reselection between LTE cells on different frequency, ranking based reselection etc. Support is provided for: LTE Bands: 1, 2, 3, 4, 5, 7, 10, 12, 13, 14, 17, 20, 24, 25 and 26. LTE Bandwidth: 1.4, 3, 5, 10, 15 and 20. NOTE: 1.4M, 3M, 15M,and 20MHz bandwidths and Band Classes 1, 2, 3, 5, 12, 20, 24, 25, and 26 have not been fully validated Supported Platforms The Reference Test Packs support the following LTE-LTE Dual Cell platforms: E2010S SR3620 Landslide PDSN Emulator (R610) SR3920 V2 Application Server (R610) Cisco 1921 Router Dell 6248 Switch

7 Chapter Two: LTE-LTE Testing Customizing Test Cases This section provides detailed instructions to customize test cases from the test pack to your requirements for testing. To customize a test case: 1. Select the test case from Test Manager. Under the Test Case Parameters pane,expand the Initial Conditions step, as shown in Figure 2-1. Figure 2-1: Test Manager Selecting a Test Case 2. Click Subtype. The Spirent Interactive Editor window displays, as shown in Figure 2-2.

8 6 CS8 LTE-LTE Idle Mode: User Manual Figure 2-2: Spirent Interactive Editor 3. The configurable items display. Update the corresponding parameters and click OK to save your changes Additional Information The following tips can assist you in configuring LTE-LTE-RRM related features. 1. Updating multiple configurations at the same time is only possible in the Initial Conditions Step 1. All other steps only allow you to update parameters associated with a single item. 2. Testing LTE-LTE-RRM-specific test cases requires you to modify the dual cell of the LTE and Core Network part. 3. You can change or modify band or EARFCN parameters by navigating to SS>LTE>eNodeB[]>eNodeB>PHY, as shown in Figure 2-3. After making changes, click OK.

9 Chapter Two: LTE-LTE Testing 7 Figure 2-3: Selecting the Frequency Band 4. Although Test Manager allows you to add AT commands directly into the test case, defining AT command in UE file is a best practice for managing AT commands throughout the suite. 5. You can type in the AT commands for the UE in the UE file, name it, and save the changes for future use, as shown in Figure 2-4. For more information, refer to the Test Manager Reference Manual.

10 8 CS8 LTE-LTE Idle Mode: User Manual Figure 2-4: Entering AT Commands 6. To use AT commands in your test case: a. In the Test Case Step select Type as "Action" and Subtype as "ExecuteATCommand". b. Click the button. A new Spirent Interactive Editor window displays, as shown in Figure 2-5. c. Enter the command name within square brackets and click OK.

11 Chapter Two: LTE-LTE Testing 9 Figure 2-5: Using AT Commands 7. For more information, refer to the Test Manager User Manual. Figure 2-6: Cell Reselection Test Case during Test Execution Figure 2-7 shows the CS8 Interactive Tester GUI during the test execution. In this example,there are two enodebs.

12 10 CS8 LTE-LTE Idle Mode: User Manual Figure 2-7: CS8 Interactive Tester GUI during Test Execution