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N7617B Signal Studio for WLAN 802.11a/b/g/j/p/n/ac/ah/ax

Technical Overviews

 N7617B

  • Create Keysight validated and performance optimized reference signals compliant with the IEEE 802.11a/b/g/j/p/n/ac/ah/ax standards
  • Use basic options to provide partially-coded signals for testing components such as power amplifiers
  • Use advanced options to provide signals with full channel coding, flexible configuration of MAC headers, spatial stream mapping, and application of channel models for testing receivers
  • Support MIMO testing with up to 8 streams/antennas
  • N7607B Signal Studio for DFS Radar Profiles enables creation of FCC, ETSI, Japan MIC, Korean or Chinese radar test signals for DFS test
  • Accelerate the signal creation process with a user interface based on parameterized and graphical signal -configuration and tree-style navigation

Simplify WLAN Signal Creation

Keysight Technologies, Inc. Signal Studio software is a flexible suite of signal-creation tools that will reduce the time you spend on signal simulation. For WLAN, Signal Studio’s performance-optimized reference signals—validated by Keysight—enhance the characterization and verification of your devices. Through its application-specific user-interface you’ll create standards-based and custom test signals for component, transmitter, and receiver test.

Component and transmitter test

Signal Studio’s basic capabilities use waveform playback mode to create and customize waveform files needed to test components and transmitters. Its user-friendly interface lets you configure signal parameters, calculate the resulting waveforms and download files for playback.

The applications for these partially-coded, statistically correct signals include:

  • Parametric test of components, such as amplifiers and filters
  • Performance characterization and verification of RF sub-systems

Receiver test

Signal Studio’s advanced capabilities enable you to create fully channel-coded signals for receiver packet-error-rate (PER) analysis. Applications include:

  • Performance verification and functional test of receivers, during RF/baseband integration and system verification
  • Coding verification of baseband subsystems, including FPGAs, ASICs, and DSPs

Performance test

N7617B Signal Studio for WLAN 802.11a/b/g/j/p/n/ac/ah/ax and N7607B Signal Studio for DFS Radar Profiles can be integrated to set up a test system for WLAN performance tests including DFS test.

Component and Transmitter Test

Signal Studio’s basic capabilities enable you to create and customize a variety of WLAN 802.11 waveforms including 802.11a/b/g/j/p/n/ac/ah/ax to characterize the power and modulation performance of your transmitter or receiver components, such as amplifiers and IQ modulators. Easy manipulation of a variety of signal parameters, including standard format, transmission bandwidth, guard interval, data rate, and modulation type, simplifies signal creation.

  • Create spectrally-correct signals for channel power, ACP, spectral mask, and spurious testing
  • Set parameters such as channel bandwidth and modulation and coding scheme (MCS) for modulation verification and analysis, such as EVM tests
  • Configure up to three 802.11a/b/g/j/p carriers with individual channel parameters such as data rate, modulation type, payload data, PN data seed value, and frequency offset
  • The 802.11ac option provides a downclocking ratio parameter to allow creation of signals proposed by IEEE 802.11af.
  • View CCDF, spectrum and time domain graphs to investigate the effects of modulation formats, power changes, filtering, and other effects on the test signal

Receiver Test

Signal Studio’s advanced mode capabilities provide additional features to help you create IEEE 802.11 WLAN standard-compliant signals for testing receiver designs in all stages of development. Use the baseband signal to perform demodulation and decoding verification on ASIC and DSP chips. To thoroughly test the demodulation capabilities of a receiver, a fully-coded test signal is necessary. This level of coding enables you to determine if each functional stage of a receiver is operating correctly and enables you to use this test signal to perform PER measurements.

  • Enable or disable channel coding, scrambling and interleaving
  • Configure MAC header settings, MAC FCS, sequence control, data type, and data length
  • A multi-frame waveform with an incrementing Sequence Control field can be created for PER testing
  • For the 802.11n, 802.11ac, 802.11ah and 802.11ax options, the software also supports Aggregation MPDU mode and LDPC encoding
  • Test MIMO receivers with up to 4 antennas for 802.11n and 802.11ah or up to 8 antennas for 802.11ac and 802.11ax (hardware dependent). Choose the number of transmit chains and space-time streams, and select direct mapping or configure a spatial expansion matrix. The effects of fading can also be incorporated into a longer waveform file with MIMO channel modeling. Users can choose one of the 802.11n or 802.11ac channel models (A through F), or select a user-defined channel model. A beamforming matrix can be added for 802.11ac.
  • Support 802.11ax OFMDA testing with configuration of different number and location of allocated Resource Units (RU) in the 20/40/80/80+80/160 MHz signal bandwidths. For each RU, the user can further configure Single-User or Multi-User MIMO and the spatial mapping will be applied at the RU level instead of the entire signal bandwidth.

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