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Interoperability


ESChat leverages FirstNet spectrum in pilot LTE networks to deliver reliable PTT, other services

  • Written by Donny Jackson
  • 10th November 2015
Mission-critical push-to-talk (PTT) functionality likely will not be part of LTE equipment for some time, but Band 14 700 MHz spectrum licensed to FirstNet promises to provide the dedicated resources needed to make over-the-top applications like ESChat reliable enough for first-responder use today, according to Josh Lober, president of SLA Corp., which developed ESChat.

What is in this article?

  • ESChat leverages FirstNet spectrum in pilot LTE networks to deliver reliable PTT, other services
  • ESChat leverages FirstNet spectrum in pilot LTE networks to deliver reliable PTT, other services

ESChat leverages FirstNet spectrum in pilot LTE networks to deliver reliable PTT, other services

Mission-critical push-to-talk (PTT) functionality likely will not be part of LTE equipment for some time, but Band 14 700 MHz spectrum licensed to FirstNet promises to provide the dedicated resources needed to make over-the-top applications like ESChat reliable enough for first-responder use today, according to Josh Lober, president of SLA Corp., which developed ESChat.

“The challenge we always have is the one that FirstNet is being built to address, and that is having dedicated spectrum,” Lober said during an interview with IWCE’s Urgent Communications. “Better than 99% of the time, operating on the commercial network works. But, when an incident occurs, the public utilizes all of the available bandwidth. If it’s at a specific incident site, it’s often taken up with pictures and video, and these things degrade and impede the performance of any application that relies on data, including ESChat.

“FirstNet’s dedicated spectrum resolves that. Using today’s technology, FirstNet is capable of supporting push-to-talk voice and not have it be affected by what’s happening with the public.”

This has been demonstrated in numerous pilots this year, with first responders using ESChat for push-to-talk voice communications on Band 14 public-safety LTE pilot networks deployed this year at the FIS 2015 Alpine World Ski Championships in Colorado, the New Mexico State Fair and the Albuquerque Balloon Festival. The response to ESChat as a PTT solution was very positive, with FirstNet Colorado offering the following assessment from the proof-of-concept network deployed at the ski championships.

“Push-to-talk (PTT) is a requirement, not an option: Far and away, the most positive feedback was the ability to have PTT communications on the LTE device,” the FirstNet Colorado report states. “Additionally, there was a strong sentiment that the responders desired to use a single device for all operations. For example, one first responder said (while holding up his LMR radio) ‘When can I get rid of this?’”

1 | 2 |
ESChat leverages FirstNet spectrum in pilot LTE networks to deliver reliable PTT, other services
Tags: Public Safety Interoperability Land Mobile Radio Long Term Evolution (LTE) News NTIA/FirstNet Project 25 Public Safety Public-Safety Broadband/FirstNet News

One comment

  1. Avatar petervonb 10th November 2015 @ 9:32 pm
    Reply

    I don’t see any way extremely
    I don’t see any way extremely critical Simplex communications can occur here, when every transmission has to go out onto the main line, get processed and then find its way back to the correct receiver – or receivers. Firefighters attacking a fire, or police officers handling a local firefight or other local incident would be put in greater danger with computer/repeater systems.

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