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Quintel Now Offers PIM Tool to Mobile Operators & Partners
  • USA - English


News provided by

Quintel

Apr 27, 2016, 03:00 ET

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Rochester, New York (PRWEB) April 27, 2016 -- The possibility of encountering PIM interference when deploying LTE in multi-band networks is becoming a major engineering challenge which needs to be carefully understood well before deployment. PIM interference is increasing because of many factors driven by increasing traffic, including,

  • More spectrum bands being used
  • Wider bandwidths in each band being used
  • Increasing Transmit powers
  • Higher-order Modulation including 64QAM being used in LTE/LTE-A.
  • More MIMO Branches being used, e.g. moving from 2T2R to 4T4R Radios

Until now, tools for accurately predicting PIM in a network have been crude and, for the most part, providing misleading information to Operators. Wrongly predicting PIM that isn’t going to be a factor has caused unnecessary over-engineered designs that will drive higher costs and potentially less than ideal designs. This is no longer an issue as Quintel has developed a sophisticated engineering design tool that accurately pinpoints and predicts PIM. This tool was originally made available for its antenna customers, but now is making this software available to all operators and partners.

Quintel’s PIM Tool is different than existing PIM analysis tools available on the market as they typically only reveal whether there might be any 3rd order PIM hit falling somewhere within the bandwidth of a receive channel. What these existing tools don't reveal is the magnitude and what margin below or above a meaningful threshold this PIM Interference may have. The Quintel PIM Tool is simple to use, has a familiar Excel interface, allows an operator to enter up to 24 signals with different technologies, powers, bandwidths, and frequencies. The tool computes PIM and provides an output as a contiguous Power Spectral Density (PSD) profile, and similar to what you might observe on a Spectrum Analyzer. The tool has been benchmarked against other OEM PIM Tools, laboratory measurements and Academic papers to within fractions of a dB.

The Quintel PIM Tool computes PIM almost instantaneously, whereas some other PIM tools can take many minutes to perform complex multi-signal, multi-band PIM calculations. Our current customers have found the PIM Tool extremely useful in better understanding and optimizing designs. Our Antenna customers have used the PIM Tool to prepare and optimize spectrum combinations, feeder sharing, antenna port and RF plumbing configurations, resolving external PIM issues, and even propose spectrum trades, especially as new bands are being added such as AWS-3 in the US and the new 700MHz spectrum in Europe. The PIM Tool could show for example that there might be 3rd order PIM products falling into some of the Rx bands, as a result of combining AWS-1, AWS-3 and PCS services together, but the PIM magnitude falling into their respective receive bands might be 15dB or greater below a Noise threshold thus indicating that combining these services would be an acceptable configuration. Previous PIM teaching may have suggested that such AWS/PCS combinations were never allowed resulting in the need for more antennas, feeders and expense.

PIM Tool Key features and benefits:

  • Technologies: GSM/EDGE including hoppers, CDMA/EVDO, UMTS/HSPA, LTE/LTE-A
  • PIM Analysis for up to 24 different signals/bands/powers/bandwidths
  • Computes odd & even PIM orders across 600MHz to 2700MHz span at 0.1MHz resolution
  • All 3GPP Bands plus user-definable bands available
  • Familiar Excel based application environment

Quintel also provides a consulting and advisory service regarding PIM matters where Quintel can run PIM analysis scenarios on behalf of operators. For more information about Quintel’s PIM Tool please contact Quintel or visit: http://www.quintelsolutions.com/pim-engineering/

About Quintel

Quintel is the leading innovator in the design, development, and delivery of network-efficient Multi-Port slim-line Cellular Base Station antennas. The company’s products allow wireless operators to gracefully and cost-effectively increase capacity, by supporting legacy, new and future air-interfaces with independent optimization and low interference RF patterns. Quintel antennas are designed to maximize benefits wireless operators can derive from advanced LTE deployments including Carrier Aggregation, VoLTE, Cloud-RAN and MIMO systems. Quintel is headquartered in Rochester, New York with additional offices throughout North America and Europe. More information about Quintel is available at http://www.quintelsolutions.com.

“Quintel” and the Quintel logo are registered trademarks, and “QTilt”, “MultiServ” and “New Dimensions in Wireless” are trademarks, of Quintel Technology Limited. All other trademarks are the properties of their respective owners.

Joe Veni, Quintel, http://www.quintelsolutions.com, +1 (408) 687-1093, [email protected]

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