Sequans in New Collaboration to Secure LTE Ecosystem

Collaboration focused on advancing interoperability and improving performance of LTE devices

AMSTERDAM–(May 17, 2011)– 4G chipmaker Sequans Communications S.A. (NYSE:SQNS) and Ericsson (NASDAQ: ERIC), world-leading provider of technology and services to mobile operators, are now collaborating to develop and mature TD-LTE technology for the global marketplace.

“Our cooperation with Ericsson will yield valuable results for the LTE ecosystem,” said Georges Karam, Sequans CEO. “Ericsson is a leader in 4G LTE and an important company for Sequans to work with. Both our companies are focused on developing LTE technology, specifically for the major TD-LTE operator trials coming soon to India and elsewhere.”

“We are working with Sequans to optimize performance, test new features, and ensure interoperability between our LTE system and Sequans’ UE chip,” said Thomas Noren, director LTE, Ericsson. “We have made much progress in advancing LTE performance and interoperability and we look forward to continued development success as well as to driving the LTE ecosystem.”

In addition to Ericsson, Sequans is working with Nokia Siemens Networks, Huawei, Alcatel-Lucent, and ZTE on LTE interoperability.

About Sequans Communications

Sequans Communications S.A. (NYSE: SQNS) is a 4G chipmaker, supplying LTE and WiMAX chips to wireless equipment and device manufacturers worldwide. Founded in 2003 to address the WiMAX market, the company expanded in early 2009 to address the LTE market. Sequans is based in Paris, France with additional offices throughout the world, including United States, United Kingdom, Israel, Hong Kong, Singapore, Taiwan, and China. www.sequans.com