In: Products, Services 22 Mar 2015 Tags: , , , , , , , , , , , ,

Speed through the air is becoming a growing imperative as ATDI helps both a mobile network and commercial flights reach maximum potential.

Network operator EE has now developed its tri-carrier LTE-Advanced structure to the extent that a demonstration was conducted at Wembley Stadium at the end of February delivering more than 400 Mbps. The system has been built using ATDI’s flagship planning and modelling software ICS Telecom to ensure it does not interfere with air traffic radars operating in the 2.7 Ghz range; EE’s LTE-Advanced utilises a combined 20 MHz of 1800-MHz spectrum with 20 MHz of 2.6-GHz spectrum, and another, separate 15 MHz chunk of 2.6-GHz spectrum. The 1800MHz band does not affect radars.

“Clearly, it is imperative that EE gets value for its investment by having a network that works for its customers and nobody needs telling how important it is to have air traffic control radars operating without interference,” notes ATDI operations director Paul Grant.  “EE’s use of ICS Telecom has been an integral part of ensuring both those things happen. Indeed, EE is continuing to take technical support from ATDI to make certain its engineers are getting the most out of ICS Telecom’s 2.6GHz coordination feature.”

The LTE-Advanced signal has the power to saturate a radar receiver thereby rendering the system useless. Many of the air traffic control radars have now had filters installed so possible interference areas are limited to areas close to the radar head.

EE’s Wembley Stadium demonstration created what the company called an interactive gig experience involving an audio-visual installation featuring multiple 4K and HD screens and high-quality audio streaming.

 

Aeronautical functions in ICS telecom:

Legbac

SM1009

Multilateration (multi-ranging / passive)

DME

RADAR (monostatic, bistatic, multistatic)

RADAR coordination (2.6 / 3.4 GHz)

IF77

UAVs

 

 

 

 

In: Press releases, Products 23 Oct 2014 Tags: , , , , , ,

As EE continues to develop its 4G – LTE – network, its focus turns to operations in the 2.6 GHz band, where it needs to ensure its next-generation services for its mobile phone customers do not interfere with vital systems such as air traffic radars operating at 2.7 GHz.
Spectrum regulator Ofcom has produced an exacting framework for this process, seeking to guarantee both that safety is not compromised and that EE, which has committed huge resources to buying the spectrum rights and building its network, actually gets value for its investment.
As part of the framework, Ofcom is stipulating that not only must operators consider current radars but also future developments such as the migration of radar systems to S-band.
To help achieve this, EE has used ATDI’s flagship planning and modelling tool ICS telecom as well as the company’s 20 years of expertise in dealing with both the current situation and the one to come.
“There’s an element of politics here as well as engineering,” comments ATDI managing director Peter Paul. “EE needs its network to operate into the long term; air traffic controllers need radar to operate into the long term. Making those two imperatives sit together, particularly as radars move one at a time into the S-band, takes discussion and some diplomacy – as well as extremely precise modelling.”
A 4G/LTE signal has the power to saturate a radar receiver thereby rendering the system useless. To help customers avoid such problems, ATDI has built a new function into ICS telecom specifically tailored to the needs of EE and other 4G operators when trying to coexist with radars.
“The development of ICS telecom has been driven by customer needs since it was launched two decades ago,” Peter notes. “Everything in it now is of profound practical value to the people using it. That’s the wonderful flexibility of being a smaller company.”

 

 

EE_logo_aqua

In: Products 02 Apr 2014 Tags: , , ,

HTZ warfare and ICS telecom introduce the Ofcom notice of coordination procedure required under spectrum access licences for the 2.6 GHz band

RadarCoord

When planning its network deployment, the 2.6 GHz licensee must check whether
the protection thresholds set out in this document would be exceeded as a result of
any proposed 2.6 GHz deployment. To do so, the 2.6 GHz licensee will need to
calculate the communications signal and the out of band noise at the relevant
Protected Radar location(s) (see section 4). If these calculations show that the
relevant threshold(s) will not be exceeded as a result of the planned deployment,
then deployment can go ahead. If the calculations show that the relevant threshold(s)
would be exceeded as a result of the planned deployment, the 2.6 GHz licensee may
consider adjusting the deployment.

 

Radar27

 

Final 2.6 Radar coordination procedure 27.02.13

2-3 & 3-4 technical Annexes_7-13

 

Features:

Frequency bands: 3410-3600 MHz and 2570-2690 MHz

Up to 200 000 LTE sectors per area

Up to 10 000 radars per project

Automatic switch between ITU-R 452-14 and ITU-R 525 (+6 dB)

Radar antenna discrimination (rotation – 0.1° precision)

Radar types: pre-remediation and post-remediation

Spurious

Modes:

– List of interferers per radar

– Power sum 1st conflict

– Power sum worst case

Export .CSV

Choice of propagation models

User inputs:

– Reference bandwidth

– OOB EIRP

– Max distance calculation

Ultra fast computing (parallelism and smart algorithm)

 

RadarCoord26
Related feature:

LTE vs DTT