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LTE & LTE-Advanced FDD & TDD Modulation Analysis 89600 VSA Software

Technical Overviews

Application Brief

Key Features

– See through the complexity of LTE and LTE-Advanced signals with a comprehensive set of demodulation tools

– Inter-band and intra-band carrier aggregation with up to 5 component carriers for LTE-Advanced

– Enhanced uplink with clustered SC-FDMA for LTE-Advanced

– Analyze UL and DL, using color-coded displays for easy channel identification

– Time and frequency-selective analysis by carrier, symbol, or RB

– Examine performance of users, channels, or signals with up to 4X4 MIMO (for LTE); up to 8 channel beamforming (for LTE); up to 8x8 MIMO (LTE-Advanced)

– Complement 89600 VSA with 89600 WLA for LTE-FDD protocol layer analysis

LTE/LTE-Advanced Modulation Analysis

The 89600 VSA software has the capability to analyze LTE and LTE-Advanced signals in both FDD and TDD formats.

Depending upon your requirements, each of the four available options provide comprehensive LTE/LTE-Advanced modulation analysis with powerful troubleshooting tools to characterize signals and identify errors and their causes.

Analyze both downlink (DL) and uplink (UL) signals, for all bandwidths, modulation formats and sequences.

Perform up to 8x8 DL MIMO analysis, for LTE and LTE-Advanced FDD and TDD, and up to 8x2 beamforming for LTE FDD and TDD with supported platforms. Keep current with advanced capabilities such as carrier aggregation and higher-order MIMO.

View virtually every facet of a signal with color-coded results by user and channel, for quick and easy visual identification. Perform measurements on the entire signal or on individual channels. Get greater clarity with an unlimited number of traces and markers, and trace-to-trace marker coupling.

New cumulative history and digital persistence displays find and isolate rare events, to make subtle problems easy to spot.

The 89600 VSA software supports more than 75 signal standards and modulation types, providing a comprehensive set of tools for demodulation and vector signal analysis. These tools enable you to explore virtually every facet of a signal and optimize your most advanced designs. As you assess the tradeoffs, the 89600 VSA helps you see through the complexity.

LTE

Third-generation (3G) wireless systems, based on W-CDMA, are deployed all over the world. W-CDMA maintains a mid-term competitive edge by providing high speed packet access (HSPA) in both downlink and uplink modes. To ensure the competitiveness of 3G systems into the future, a long term evolution (LTE) of the 3rd Generation Partnership Project (3GPP) access technology was specified in Release 8 of the 3GPP standard.

The LTE specification provides a framework for increasing capacity, improving spectrum efficiency, improving coverage, and reducing latency compared with current HSPA implementations. In addition, transmission with multiple input and multiple output (MIMO) antennas is supported for greater throughput, as well as enhanced capacity or range.

To support transmission in both the paired and unpaired spectrum, the LTE air interface supports both frequency division duplex (FDD) and time division duplex (TDD) modes.

LTE-Advanced takes throughput to the next level with the capability of having up to five component carriers in inter-band and intra-band configuration and higher order MIMO of up to 8x8. Option BHG (LTE-Advanced FDD) and Option BHH (LTE-Advanced TDD) provide UL/DL carrier aggregation in both contiguous and non-contiguous bandwidths and 8x8 downlink MIMO for both FDD and TDD.

Analysis and Troubleshooting

Easy set-up

Use a standard preset, or use one of the provided E-UTRA test models to easily configure your VSA1 . Adjust virtually any parameter manually to modify standard-compliant analysis setup to deal with early system development.

A graphical user allocation map lets you select which channels to include in measurements and displays. To simplify data set-up and interpretation, there is consistent color-coding by user and channel or signals throughout configuration and measurement displays.

If you use Signal Studio for LTE (version 12 or later), you can recall .scp or .xml setup files for your test signals.

Time or frequency-selective analysis (on each component carrier for LTE-Advanced)

Look at your signal’s error by carrier, symbol, or RB. Sharpen your view by highlighting only a portion of the time, frequency, or RB error information available. Just double-click on the display annotation or use the X-axis expand select tool to mark the area of interest.

Zero in to analyze select channels and signals Go to the Profile tab and choose which elements to include in your error analysis: you can select/de-select users, signals, or channels, allowing you to focus on the behavior you want to investigate.

Decode UL and DL Tables provide decoded UL and DL information from control channels. Decoded information for each frame is displayed following the same channel color-coding displayed in the frame summary trace and used throughout.

Enhanced uplink analysis The 89600 VSA software with LTEAdvanced options enables enhanced uplink analysis capability with clustered SC-FDMA, giving you the ability to add multiple clusters on the same slot. Also available are simultaneous PUCCH and PUSCH analysis as well as support for PUCCH Format 3, a new control format added to 3GPP Release 10.

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