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Cellular

Keysight Technologies, the world’s premier measurement company, offers a full range of design, test, and management solutions that span the range of cellular technologies—from legacy 1G systems through 3G systems such as HSPA to 3GPP Long Term Evolution (LTE) and 1xEV-DO. Keysight products cover the lifecycle from early design and development, through volume manufacturing, to network deployment and service assurance. See the Quick Guide to Keysight’s Solutions for High-Speed Cellular for an overview of all technologies and supporting product families. To learn more about related technologies consult MIMO Test and Wireless Connectivity. Accelerate Wireless Design and Test with Flexible, High-Performance Platforms

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LTE/LTE-Advanced FDD/TDD Signal Studio and Test Case Manager Software Enhancements 
Keysight addresses LTE-Advanced challenges by providing the industry'sfirst signal generation & analysis tools, enabling design engineers to test physical layer implementations, now with envelope tracking capability, with greater insight & confidence.

FAQ 2014-04-24

 
How do you calculate the individual output power of each satellite? 
The ESG/PSG power level is distributed equally among the satellites.

FAQ 2012-11-21

 
Where can I find additional scenario files? 
There is a link for additional scenario files on the product Web page for the E4438C-409 that takes you to this page...

FAQ 2012-11-21

 
Where can I find Galileo almanac files to create custom scenarios? 
There are no official published almanac files at this time for Galileo. The N7609B software includes a default almanac file, 20110709_Gal.alm

FAQ 2012-11-21

 
I’m using the N7609B with an X-series signal generator. Can I generate a real-time GNSS signal without being connected to Signal Studio? 
Yes, if you are using a stored scenario file, but not if you are using continuous scenario generation mode.

FAQ 2012-11-21

 
How do I obtain the NMEA GGA message file of trajectory information in order to create a dynamic scenario for a moving GNSS receiver? 
There are several ways to do this...

FAQ 2012-11-21

 
Why does my GPS receiver not show the correct year that I’m simulating? 
The GPS date is expressed as a week number and a time-of-week value. The week number is transmitted as a ten-bit field in the C/A navigation message. It can therefore signify a week within a period of 1,024 weeks or 19.69 years.

FAQ 2012-11-21

 
Where can I find GLONASS almanac files to create custom scenarios? 
You can obtain GLONASS almanac files from this URL: ftp://ftp.glonass-iac.ru/MCC/ALMANAC.

FAQ 2012-11-21

 
Where can I find GPS almanac files to create custom scenarios? 
You can obtain GPS almanac files from this URL: http://www.navcen.uscg.gov/?pageName=gpsAlmanacs

FAQ 2012-11-21

 
How much baseband generator memory is needed in the signal generator to use basic mode waveforms? 
The amount of memory that is needed depends on how many waveform files you need to have in the instrument memory at one time.

FAQ 2012-11-21

 
What is the data content in the single satellite waveform files? Is it real navigation data? 
The waveform files contain alternating 0s and 1s for the data. Real navigation data is not included since it is impossible for a receiver to calculate a location fix using only a single satellite signal.

FAQ 2012-11-21

 
Can Keysight provide a location accuracy specification for the Option 409? 
Unfortunately, Keysight cannot provide a location accuracy specification because this is dependent on the GPS receiver.

FAQ 2012-11-21

 
Is there a way to transfer sets of waveforms to each signal generator without having to connect the N7609B software to each instrument? 
Yes. All of the waveform files are available on your PC when you install the N7609B application; they are in the application SW folder

FAQ 2012-11-21

 
When simulating a signal that includes GLONASS and Galileo my receiver is reporting different satellite IDs than shown in the Signal Studio, why? 
While GPS satellites are commonly identified by the pseudorandom codes (PRN) that they use, there is no industry standard yet for how to refer to the GLONASS or Galileo satellites.

FAQ 2012-11-21

 
How does the N7609B calculate the total output power in relation to the number of visible satellites during a scenario? 
When you initially turn on the simulation, the Satellite Settings page will update the “Power” column to show the power of each satellite in dBm.

FAQ 2012-11-21

 
Are scenario files compatible between the E4438C-409 and the N7609B? 
Yes, the N7609B can use any of the scenario files created for the E4438C-409...

FAQ 2012-11-21

 
What is the maximum sampling rate for the GNSS waveforms? 
The sampling rates vary depending on which constellation is being simulated, and they range from 2.044 MSa/s for GLONASS up to 24.552 MSa/s for Galileo.

FAQ 2012-11-21

 
How much baseband memory do I need in the ESG/PSG for opt. 422 scenario generator? 
The scenario files reside on the hard drive until one is selected for playback, and then it is loaded into the baseband memory.

FAQ 2012-11-21