KT demonstrates full HD video transmission between GEO satellite and UE with Rohde & Schwarz and VIAVI Solutions KT has collaborated with Rohde & Schwarz and VIAVI Solutions to develop non-terrestrial network (NTN) technology that overcomes the disadvantages of long propagation delays in satellite communication environments. With this technology, a bandwidth of more than 10 Mbps is possible even between a geostationary (GEO) satellite and user device. This increased transmission efficiency was leveraged to successfully transmit full HD video. Visitors to Mobile World Congress 2025 in Barcelona can see a demonstration of this technology at the KT booth in Hall 4, Stand 4A60.
The research project with KT was conducted using the CMX500 platform. (Image: VIAVI)
On February 12, 2025, KT successfully demonstrated 5G non-terrestrial network (NTN) technology in a satellite communication environment with long propagation delays. It used a method that accurately calculates path loss between the satellite and device based on their varying distance over time, without using retransmission techniques (HARQ-less). As a result, a bandwidth of more than 10 Mbps was achieved at approximately 35,000 km between the satellite and user device, enabling full HD video transmission.
The NTN digital twin testbed from Rohde & Schwarz and VIAVI Solutions was used to develop this technology. The testbed is based on the CMX500 one-box signaling tester and the VIAVI TM500-AS2 Network Tester.
The CMX500 radio communication tester is a future-proof 5G NR test solution with an intuitive and flexible web-based user interface. It features channel emulation and fading in a single box, including all 3GPP fading profiles. The modular design can be easily customized to specific test requirements. For example, additional RF units can be implemented to support comprehensive testing of all 3GPP FR1 band combinations. FR2 capabilities are also available for most configurations, enabling greater versatility in advanced 5G NR testing.
The VIAVI TM500 Network Tester family supports early functional, system integration, capacity, performance and regression testing for 5G base stations. It simulates thousands of mobile devices to offer comprehensive testing across the entire protocol stack, from the physical layer to NAS and application layers. The tester is used with the VIAVI TeraVM, an application emulation and security performance solution, which delivers comprehensive test coverage for application services, wired and wireless networks.
Tae-hoon Kim, Managing Director of Rohde & Schwarz Korea, says: Rohde & Schwarz has continuously worked to overcome technical challenges in satellite communication environments. This collaborative research with KT was conducted using the CMX500 platform, which meets the requirements of mobile communication technologies such as 5G and NTN, allowing us to secure the latest technology and validate advanced implementations.
Beom-seok Seo, Country Director of VIAVI Solutions Korea, says: We have achieved over 10 Mbps in long-distance satellite communication using HARQ-less technology. This technology has the potential in public safety operations and other similar applications.
Jong-sik Lee, Executive Vice President of Future Network Laboratory, KT, says: NTN is an essential technology for ubiquitous connectivity in the 6G era. In the future, KT will continue to expand communication coverage beyond terrestrial limits and into three-dimensional aerial spaces, leading the way into the 6G era.
At MWC 2025, visitors can experience at the KT booth 4A60 in hall 4 the live demonstration of full HD video transmission between a geostationary (GEO) satellite and user device, as well as explore the NTN digital twin testbed from Rohde & Schwarz and VIAVI Solutions. Those interested in learning more about the testbed can speak with an expert at the VIAVI Solutions booth in Hall 5, Stand 5A18.
For more information on the NTN digital twin testbed from Rohde & Schwarz and VIAVI Solutions, visit: https://www.viavisolutions.com/en-us/solutions/non-terrestrial-networks
Europe Stories
04/03/2025
Rohde & Schwarz transfers Clipster Mastering Solution to CineCert Rohde & Schwarz has announced the transfer of its renowned Clipster mastering solution to Ci...
03/03/2025
To mark International Womens Day on March 8th, TVBEurope is showcasing some of the women who are helping to shape the media technology industry. We start with S...
03/03/2025
KT demonstrates full HD video transmission between GEO satellite and UE with Roh...
03/03/2025
Rohde & Schwarz and Murata jointly enhance power efficiency of 5G and 6G devices...
03/03/2025
The tested 4061 CORE+ Omni lavalier delivers an impressive sensitivity and a wide dynamic range (111 dB), handling sound pressures up to 144 dB SPL with no dist...
03/03/2025
Arvato Systems & DSCVOLLEY launch DSCVOLLEY Kids
Social engagement in Dresden as part of the Experience Diversity campaign
G tersloh/Dresden - In autumn 20...
03/03/2025
Apple and Major League Baseball (MLB) announced that Friday Night Baseball, a weekly doubleheader available on Apple TV+, is set to return for the 2025 regula...
03/03/2025
Facebook
Twitter
LinkedIn
SHIFT, the German pioneer in sustainable and ethical handset manufacturing, has partnered with Thales, a global leader in advanc...
03/03/2025
Facebook
Twitter
LinkedIn
On the occasion of IDEX-NAVDEX 2025, EARTH, an e...
03/03/2025
Facebook
Twitter
LinkedIn
Thales subsidiary, Thales Defense & Security, Inc. (TDSI), has been awarded a contract for Scorpion Helmet Mounted Display (HMD)...
01/03/2025
It was the start of a new cycle and a new era in terms of venue sizes, Pike recalls. Solotech were able to help us out in terms of budget, so for our first gi...
28/02/2025
Awards season is a celebration of cinematic excellence, but the best stories often start on the page. From a beloved Wizard of Oz retelling to the captivating b...
28/02/2025
As summer in Argentina comes to a close, the music coming out of the South American country has been a vibrant reflection of its rich cultural diversity. From b...
28/02/2025
Operational since April 2024, O3b mPOWER has been successfully activated for spe...
28/02/2025
This March, RT is delighted to support St. Patrick's Festival, along with 20 other amazing arts and cultural events all over Ireland spanning theatre, film...
28/02/2025
Facebook
Twitter
LinkedIn
Munich, Germany - February 28, 2025 - A signific...
28/02/2025
RT Commercial has today announced Travel Department as the new sponsor of RT R...
28/02/2025
An bhfuil c pla funny focal' agat?
T RT ag ceili radh Sheachtain na Gaei...
28/02/2025
South Carolina broadcaster WGGS chooses the Rohde & Schwarz TE1 Liquid-Cooled Tr...
27/02/2025
It has been 10 years since the world lost corridos tumbados godfather Ariel Cama...
27/02/2025
With over 200,000 square feet of production space, the studios aim to meet the needs of any production
By Matthew Corrigan
Published: February 27, 2025 Upd...
27/02/2025
Hotcam employed a combination of Sony FX9 and FX3 cameras linked to the gallery ...
27/02/2025
Luxembourg, 26 February 2025 -- SES S.A. announces financial results for the year ended 31 December 2024 with solid operational and financial performance leadin...
27/02/2025
Luxembourg, 27 February 2025 - SES S.A. today acknowledges the announcement by Appaloosa LP with respect to agenda items it intends to propose at SES's upco...
27/02/2025
Rohde & Schwarz and ELT Group join forces to deliver cutting-edge EW systems for...
27/02/2025
MWC25: Rohde & Schwarz demonstrates unique UWB radar target simulation with NXP ...
27/02/2025
Rohde & Schwarz advances AI/ML-powered neural receiver testing in collaboration ...
27/02/2025
Wuppertal February 27, 2025
Riedel MediorNet Boosts Rec4Box OB Production and ...
27/02/2025
Pete Distad Joins Fox Corporation as CEO of Upcoming FOX Direct-To-Consumer Serv...
27/02/2025
Here is your host, Patrick Kielty!
As he prepares to visit Washington, Taoiseac...
27/02/2025
Facebook
Twitter
LinkedIn
Cubic, a leading global provider of software-def...
27/02/2025
Facebook
Twitter
LinkedIn
Thales, a world leader in cybersecurity for crit...
26/02/2025
BOSTON - February 26, 2025 - Brightcove, the world's most trusted intelligen...
26/02/2025
class=attachment-thumbnail size-thumbnail f-align-center alt= decoding=async data-lazy-srcset=https://www.antonbauer.com/wp-content/uploads/2024/02/Koji-Kojima....
26/02/2025
class=attachment-thumbnail size-thumbnail f-align-center alt= decoding=async data-lazy-srcset=https://www.antonbauer.com/wp-content/uploads/2025/02/Shabiron-200...
26/02/2025
Panasonic also intends to launch a new Flow app to enhance production workflows across short films, documentaries, music videos, and corporate promotional video...
26/02/2025
New partnership combines SES and Quvia's expertise in technology and innovat...
26/02/2025
FOX Renews Hit Medical Series Doc for Second Season with 22-Episode Pick-Up Only One More Explosive Episode Until the Highly Anticipated Season Finale on Tues...
26/02/2025
26 Feb 2025
VEON Highlights Role of Investments in Rebuilding Ukraine, Renews ...
26/02/2025
CMX500 AI Scripting Assistant from Rohde & Schwarz facilitates mobile device tes...
26/02/2025
Rohde & Schwarz and u-blox validate module compliance with the new Chinese GNSS ...
26/02/2025
Rohde & Schwarz to uncover consumer benefits with 5G Broadcast commercial networ...
25/02/2025
eds3_5_jq(document).ready(function($) { $(#eds_sliderM519).chameleonSlider_2_1({ content_source:......
25/02/2025
The companys administrators said the economic headwinds which are affecting comp...
25/02/2025
Hotcams head of engineering, Hugo Santos, explains the value of mentorship and personal development to TVBEurope
By Matthew Corrigan
Published: February 25, ...
25/02/2025
Wayne, N.J., February 26, 2025 - Vision Research announces the release of its Ph...
25/02/2025
NETWORK MODERNIZATION, UPGRADED CUSTOMER MANAGEMENT, AND RECORD-HIGH DIVIDEND - ...
25/02/2025
Sky announces June return for The Walking Dead: Dead City and debuts opening min...
25/02/2025
Rohde & Schwarz launches new R&S ZNB3000 vector network analyzer ideal for high-...
KT demonstrates full HD video transmission between GEO satellite and UE with Rohde & Schwarz and VIAVI Solutions KT has collaborated with Rohde & Schwarz and VIAVI Solutions to develop non-terrestrial network (NTN) technology that overcomes the disadvantages of long propagation delays in satellite communication environments. With this technology, a bandwidth of more than 10 Mbps is possible even between a geostationary (GEO) satellite and user device. This increased transmission efficiency was leveraged to successfully transmit full HD video. Visitors to Mobile World Congress 2025 in Barcelona can see a demonstration of this technology at the KT booth in Hall 4, Stand 4A60. 
