Sequans, Nokia Siemens Networks bring commercial TD-LTE closer
December 22, 2010

Succeed in interoperability testing across all available bands, proving maturity of the TD-LTE ecosystem

Marking a defined step forward in TD-LTE commercialization, Sequans, a leading chipset platform provider, and Nokia Siemens Networks have successfully conducted interoperability trials of the technology in the 2.3 GHz, 2.5 GHz and 2.6 GHz frequency bands. The demonstration tested the interoperability of Nokia Siemens Networks’ TD-LTE infrastructure equipment with Sequans’ SQN3010 platform*.

Espoo, Finland – December 22, 2010, The TD-LTE interoperability trial was conducted at Nokia Siemens Networks’ R&D center in Hangzhou, China. The Open Lab in Hangzhou can be used by major TD-LTE smartphone and terminal manufacturers around the world to test the interoperability and functionality of their devices across TD-LTE networks. During the recent interoperability testing, Nokia Siemens Networks used its standard-compliant TD-LTE infrastructure solution comprising the award-winning Flexi Multiradio Base Station and its core network solution including the Flexi NS (Network Server) and the Flexi NG (Network Gateway).

“Sequans has leveraged its leadership in the WiMAX market to become one of the first to deliver a TD-LTE chip solution, enabling TDD operators worldwide,” said Craig Miller, vice president of marketing and business development, Sequans. “We are focused intently on the development of a robust TD-LTE ecosystem that includes global infrastructure vendors such as Nokia Siemens Networks.”

“These trials are extremely important for network operators with TDD spectrum assets, particularly in China, India and Japan as well as other regions including Europe, where TDD licenses in the 2.6 GHz spectrum have been awarded recently,” said Thorsten Robrecht, head of LTE product management, Nokia Siemens Networks. “Performing the test with Sequans’ chipset that is targeted for use in TD-LTE trials across China, India and Japan will thus speed up the commercialization of TD-LTE.”

Nokia Siemens Networks is at the forefront of TD-LTE development and commercialization, closely working with telecom operators and device manufacturers around the world. Fully prepared and committed to support LTE activities, it is actively participating in tests and trials for both Frequency Division Duplexing LTE (FDD-LTE) and Time Division Duplexing LTE (TD-LTE). Earlier this year, Nokia Siemens Networks successfully demonstrated TD-LTE trials during Shanghai World Expo, and TD-LTE data calls at the company’s R&D center in Hangzhou and at Taiwan’s National Chiao Tung University.

About Sequans Communications

Sequans Communications is a 4G chipmaker, supplying LTE and WiMAX chips to equipment manufacturers and mobile operators worldwide. Founded in 2004 to address the WiMAX market where it is now a global leader, Sequans expanded in early 2009 to address the LTE market. Sequans chips are inside leading WiMAX networks worldwide and will soon be inside LTE networks. Sequans is based in Paris, France with additional offices throughout the world, including USA, United Kingdom, Israel, Japan, Hong Kong, Singapore, Taiwan, and China.

About Nokia Siemens Networks

Nokia Siemens Networks is a leading global enabler of telecommunications services. With its focus on innovation and sustainability, the company provides a complete portfolio of mobile, fixed and converged network technology, as well as professional services including consultancy and systems integration, deployment, maintenance and managed services. It is one of the largest telecommunications hardware, software and professional services companies in the world. Operating in 150 countries, its headquarters are in Espoo, Finland.

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Media Enquiries


Nokia Siemens Networks

Riitta Mard, Communications, Phone: +358505149718, E-mail:

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Sequans Communications

Kimberly Tassin, Phone: +1 425.736.0569, E-mail:

Notes to editors:

* Nokia Siemens Networks is leading the commercialization of LTE in terms of commercial references and live network performance according to a third party consultancy firm. LTE is the next-generation mobile broadband technology and the evolutionary step from GSM, WCDMA/HSPA/HSPA+, TD-SCDMA, CDMA and WiMAX networks. It promises the delivery of broadband and smart device services, thanks to increased data rates, reduced latency and scalable flat all-IP network architecture. Nokia Siemens Networks has shipped its LTE ready Flexi Multiradio Base Station to over 200 operators. In addition, it was the first to make an LTE call using commercial hardware and standards-compliant software in 2009.

The company has the highest number of commercial LTE references worldwide, 23 commercial LTE deals, and is conducting LTE trials with more than 25 customers around the world.

LTE can be offered in paired (FDD – Frequency Division Duplexing) or unpaired (TDD – Time Division Duplexing) spectrums. Nokia Siemens Networks Single RAN including the Flexi Multiradio Base Station provides a future-proof, easy and cost-efficient path to LTE in both FDD and TDD spectrum via a simple software upgrade. Besides the Single RAN that supports GSM, 3G, FDD-LTE and TD-LTE, the company’s LTE telecom infrastructure offering also features the Evolved Packet Core, including Flexi NS (Network Server) and Flexi NG (Network Gateway), transport solutions, network management system. It also features Self Organizing Networks (SON), the award-winning Voice over LTE (VoLTE), provisioning and charging solutions, and a range of professional services to plan, install, maintain and operate networks. For more information, please click here.

  • September 2009: Nokia Siemens Networks conducted with China Mobile the world’s first TD-LTE femtocell demonstration
  • October 2009: Nokia Siemens Networks and China Mobile conducted TD-LTE femtocell demo at GSMA Mobile Asia Congress 2009. Nokia Siemens Networks conducted the world’s first TD-LTE call using its Flexi Multiradio base station and fully standards-compliant software (3GPP Rel 8 March 09 baseline)
  • April 2010: Nokia Siemens Networks sets up industry’s first TD-LTE Open Lab. Provides smartphone and terminal testing facility to accelerate TD-LTE ecosystem
  • April 2010: Nokia Siemens Networks successfully completed MIIT’s TD-LTE field trials based on its commercial Flexi Multiradio base station in China
  • April 2010: TD-LTE ecosystem reaches maturity with landmark data call. Samsung and Nokia Siemens Networks collaborate on world’s first end-to-end TD-LTE data call
  • May 2010: Nokia Siemens Networks supports landmark TD-LTE video call. Collaborates with industry partners to conduct first live TD-LTE demo between Shanghai and Taipei
  • June 2010: Nokia Siemens Networks drives evolution to TD-LTE. Unveils complete integration of TD-LTE into existing mobile portfolio
  • August 2010: Independent labs confirm Nokia Siemens Networks TD-LTE leadership
  • October 2010: Nokia Siemens Networks conducts first TD-LTE call on India’s Broadband Wireless Access spectrum

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