The worlds first dual mode HD voice over LTE call between TD-LTE and LTE FDD demonstrated
Based on ST-Ericsson Thor LTE modem and Renesas Mobile quad-mode chipsets
LTE TDD/FDD converged network infrastructure provided by Ericsson
Ericsson has successfully supported China Mobile in demonstrating the worlds first dual mode HD voice over LTE (VoLTE) call between TD-LTE and LTE FDD based on ST-Ericssons multimode modem and Renesas Mobile quad-mode chipsets during the 2013 Mobile World Congress (MWC) in Barcelona. The success of the demonstration further paves the way for the ultimate commercial launch of Voice over TD-LTE.
The demonstration was accomplished on Ericssons commercially verified LTE TDD/FDD converged radio solution and mature IMS platform, adopting ST-Ericssons commercial Thor LTE modem and Renesas Mobile quad-mode chipsets that are ready for mass production. TD-LTE and LTE FDD enjoy a technical similarity of over 90 percent, making it possible for both networks and terminal chipsets to share a common commercial platform.
By deploying communication services over an all-IP network, like LTE, the opportunity opens up to evolve the voice business and launch new services like HD voice and video calling, with telecom grade quality. At present VoLTE has been put into commercial service with several operators, and the demand for TD-LTE voice services is also growing, not only because the coming expanded deployment of TD-LTE networks, but also the realization of TD-LTE voice will allow TD-LTE operators to free up their 2G and 3G frequency bands, creating a competitive edge at a time when spectrum resources are quickly becoming scarcer.
The demonstration also achieved HD quality TD-LTE voice service. As of January 2013, operators in 45 countries have launched HD voice over WCDMA/GSM/LTE in 61 live networks, supported by mainstream devices. HD voice over TD-LTE will ensure superior user experience also for TD-LTE subscribers in the near future.
At its MWC debut as an exhibitor, China Mobile showcased a series of innovative applications in an LTE TDD/FDD integrated network environment, and also demonstrated the most complete TD-LTE end-to-end converged ecosystem so far. The network infrastructure on site at the China Mobile booth, as well as the integration of multi-frequency bands and multi-vendor systems and terminals, are provided by Ericsson.
Sha Yuejia, Vice President of China Mobile said, The convergenceof TD- LTEandLTE FDDnetworkswill significantly speed up theindustrialization ofLTE. Last December, China Mobile Hong Kong has successfully launched the worlds first TD-LTE/LTE FDD converged network with partners includingEricsson. Today,here at the most important event of themobile telecommunications industry of the year, wearedemonstrating VoLTE supported byfive-mode chipset.This marksabig stepahead for theTD-LTE/LTE FDD converged development.
Mats H Olsson, President of Ericsson North East Asia, said: Ericsson is honored to support China Mobile in establishing yet another milestone in the development of TD-LTE. The technology readiness and commercial availability of the system, platform and devices for TD-LTE that we demonstrated here is a strong testimonial to the maturity of a converged end-to-end TD-LTE ecosystem. Ericsson is determined to work continuously with China Mobile and operators around the world to drive the globalization and commercialization of TD-LTE.
Mats Norin, Executive Vice President and Chief Technology Officer of ST-Ericsson, said: ST-Ericsson is pleased to partner with China Mobile and Ericsson in successfully demonstrating this great innovative milestone at Mobile World Congress 2013. ST-Ericssons Thor modem solutions and NovaThor ModAp solutions are multimode platforms that are capable of supporting TD-LTE/LTE FDD/WCDMA/TD-SCDMA/GSM. In addition, ST-Ericssons modem and ModAp platforms are able to provide complete voice solutions including VoLTE, CSFB and SRVCC. We hope to continue our cooperation with China Mobile to promote the development of TD-LTE.
Heikki Tenhunen, Senior Vice President Renesas Mobile Corporation, said; Renesas Mobiles long relationship with China Mobile and Ericsson brings another joint achievement to Mobile World Congress 2013. Renesas Mobiles SP253x and MP5232 platforms are quad-mode platforms supporting TD-LTE/LTE FDD/DC-HSPA+/GSM. They offer commercial-grade VoLTE and high performance LTE today.
In December 2012, Ericsson assisted China Mobile Hong Kong in demonstrating the worlds first live, seamless, bi-directional LTE TDD/FDD interworking on the converged LTE TDD/FDD network.The launch of this converged network architecture, based on the recognized 3GPP standard, combines the power of both networks to benefit both China Mobile Hong Kong and its subscribers and the industry as a whole.
The convergence of TD-LTE and LTE FDD enables operators to maximize networks based upon traffic demands and spectrum availability.Convergence provides an operator the flexibility to deploy LTE FDD and LTE TDD throughout the network to ensure adequate coverage, and then add additional LTE in those areas where additional capacity is needed.
With convergence, the TDD/FDD networkcan be operated as asingle networkwith the scale needed to foster the transformation of industries like entertainment, transportation, education, healthcare and energy.
As a firm supporter of TD-LTE, Ericsson also has a clear leadership position in the LTE market, with more than 120 LTE/EPC contracts on six continents. Ericssons well-proven LTE solutions support the worlds busiest networks. It has signed contracts with nine out of the 10 highest ranked mobile operators by revenue.
NOTES TO EDITORS
Ericsson at MWC 2013
http://www.ericsson.com/thecompany/press/mediakits/mwc2013
LTE Media Kit
http://www.ericsson.com/thecompany/p
Most recent headlines
05/01/2027
Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...
04/08/2026
Dalet, a leading technology and service provider for media-rich organizations, t...
04/07/2026
April 7 2026, 19:00 (PDT) Detective Conan: Fallen Angel of the Highway Opens in...
01/06/2026
January 6 2026, 05:30 (PST) Dolby Sets the New Standard for Premium Entertainment at CES 2026
Throughout the week, Dolby brings to life the latest innovatio...
13/05/2026
New Adobe Premiere Color Grading Mode Accelerated on NVIDIA GPUs
Joel Pennington May 13, 2026
0 Comments
New NVIDIA RTX-accelerated features streamlin...
13/05/2026
Grass Valley announced that dB Broadcast has delivered new IP-based outside broadcast (OB) trucks for Cloudbass, featuring Grass Valley LDX 100 Series cameras a...
13/05/2026
Ikegami will exhibit the latest additions to its wide range of broadcast production cameras, control units, viewfinders and monitors on stand 5D3-1 at Broadcast...
13/05/2026
FISE, working with the founding members of the XR Sports Alliance (XRSA), Accedo, Qualcomm Technologies, Inc. and HBS, have collaborated to develop an immersive...
13/05/2026
Canon Unveils New EOS R6 V Full-Frame EOS Camera and RF20-50mm F4 L IS USM PZ Bu...
13/05/2026
Boston Conservatory at Berklee Honors Beth Morrison and Moses Pendleton at Comme...
13/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
13/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
13/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
13/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
13/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
13/05/2026
Creative software developer Foundry today announced the latest developments on Nuke Stage. A purpose-built application for end-to-end virtual production and in-...
13/05/2026
A definitive portrait of one of Ireland's most influential musicians
New TV documentary airs Monday 18 May on RT One and RT Player at 9.35pm
Watch the...
13/05/2026
Agentic AI is changing the way users get work done. Following the success of OpenClaw, the community is embracing new open source agentic frameworks. The latest...
13/05/2026
Reinforcement-learning agents - AI systems that learn by trial and error - can c...
12/05/2026
Beyond the Hype: A Strategic Post-Hoc Analysis of NAB 2026 If NAB Show 2026 had an underlying theme, it was a quiet, industry-wide pivot from the high-energy sp...
12/05/2026
Guntermann and Drunck (G&D), a Panoptec Technologies Group company, and CT Square, led by Chandresh Shah, have announced a joint venture to distribute G&D and V...
12/05/2026
With 30 days until the start of the FIFA World Cup 2026, Telemundo, the exclusive Spanish-language home of the tournament in the United States, has announced th...
12/05/2026
The NHL has announced the return of Stanley Pup for its third consecutive year, a 90-minute special featuring adoptable rescue dogs competing on a miniature rin...
12/05/2026
NBCUniversal presented its 2026 Upfront to advertisers at Radio City Music Hall, detailing upcoming programming across NBC, Peacock, Bravo, and Versant properti...
12/05/2026
FOX Sports has announced funding for the Fandom and Social Connection Initiative at Harvard Kennedy School's Shorenstein Center on Media, Politics, and Publ...
12/05/2026
TNDV and Live Media, both divisions of Live Media Group, supported live broadcast coverage around NCAA Final Four weekend in Indianapolis, including the March M...
12/05/2026
The European Football Alliance (EFA) has announced a content distribution agreement with Fubo Sports Network, the free ad-supported streaming TV (FAST) channel ...
12/05/2026
For the first time, Spanish-speaking fans in the U.S. will have two separate tel...
12/05/2026
CP Communications led a comprehensive spectrum management initiative on behalf of Churchill Downs during Kentucky Derby week, coordinating RF assets across the ...
12/05/2026
LiveU has announced a strategic partnership with DRONERESPONDERS, a 501(c)3 non-...
12/05/2026
Open Broadcast Systems has announced that BMC TV, a specialist in IP transport of broadcast content, has selected the Open Broadcast Systems 5G Flyaway solution...
12/05/2026
NEP Europe, part of NEP Group, has announced it will deliver broadcast solutions...
12/05/2026
Grass Valley has announced continued collaboration with Ravensbourne University ...
12/05/2026
Stats Perform has announced the launch of Opta Pulse, an AI-assisted video creation and distribution platform for leagues, rights holders, and broadcasters. The...
12/05/2026
FOX Sports has announced a collaboration with Sesame Workshop to integrate Sesame Street characters into FOX Sports' FIFA World Cup 2026 programming. Conten...
12/05/2026
To date, NHL Productions has produced 19 broadcasts with commentary in American Sign Language
NHL in ASL (American Sign Language) may be just one show, but the...
12/05/2026
Google's Brian Albert: creators, athletes, highlights, nostalgia, second-scr...
12/05/2026
A still from Past Lives by Celine Song, an official selection of the Premieres program at the 2023 Sundance Film Festival. (Courtesy of Sundance Institute | p...
12/05/2026
Spotify is where fans and artists come together, turning discovery into somethin...
12/05/2026
Features patented Marco-MMC clocking technology
Black Lion Audio's latest release combines the company's expertise in clocking with their renowned p...
12/05/2026
New Track Panel, sequencer upgrades & more
Following their recent public beta release, Reason Studios have announced the full release of Reason 14. With the...
12/05/2026
One month to go! SBS reveals expansive FIFA World Cup 2026 lineup beyond the pi...
12/05/2026
Rohde & Schwarz presents its advanced solutions for power electronics testing at...
12/05/2026
aconnic AG (ISIN: DE000A0LBKW6), Munich, has developed a modified fund raising p...
12/05/2026
Share
Copy link
Facebook
X
Linkedin
Bluesky
Email...
12/05/2026
Tyrell Corporation, specialists in high-end live sports and entertainment broadcasts, was tasked with delivering compelling broadcast coverage of premier equest...
12/05/2026
Registration is now open for IBC2026 as the global media, entertainment and technology community prepares to converge on the RAI Amsterdam from 11 14 September ...
12/05/2026
Ross Video, a global leader in live video production technology, will present its latest innovations and integrated production workflows at BroadcastAsia 2026, ...
12/05/2026
500 selected leaders from around the world across start-ups, corporates, and venture capital. Over 50bn in assets under management among attending investors, a...
The worlds first dual mode HD voice over LTE call between TD-LTE and LTE FDD demonstrated
