Sequans and Clearwire to Collaborate on TDD-LTE Ecosystem Development

Sequans and Clearwire to Collaborate on TDD-LTE Ecosystem Development

Companies to Work Closely on Performance Testing and Prototyping of TDD-LTE
Devices

PARIS and BELLEVUE, Wash., May 7, 2012 (GLOBE NEWSWIRE) -- 4G chipmaker
Sequans Communications S.A. (NYSE:SQNS) and Clearwire (Nasdaq:CLWR), a leading
provider of wireless broadband services, today announced an agreement to
collaborate on LTE for the purpose of accelerating the availability of LTE
devices for Clearwire's planned TDD-LTE network and to optimize the user
experience for Clearwire's customers. The two companies will work together on
performance testing and certification, standards development, and the creation
of devices to support multi-band, multi-mode TDD-LTE and FDD-LTE solutions.

Sequans Communications Logo

"Clearwire is a 4G leader with big plans for TDD-LTE where it is establishing
strategic partnerships around the world to develop and strengthen the TDD-LTE
ecosystem," said Georges Karam, Sequans CEO. "Continuing the successful
relationship begun under their current 4G network configuration into TDD-LTE
makes perfect sense for our two companies. We are very pleased to continue our
collaboration with Clearwire."

"As one of the largest chip providers for a wide range of devices in the WiMAX
ecosystem, Sequans has been a major enabler of our growth," said John Saw,
Clearwire's Chief Technology Officer. "We are pleased to work with Sequans to
bring LTE devices to market while also ensuring that the user experience on
our planned LTE Advanced-ready network is second to none. We look forward to
leveraging our successful relationship with Sequans to develop a new wave of
devices for our 4G future."

Sequans TDD-LTE Leadership

Sequans is one of the early leaders in TDD-LTE chip technology and was one of
the first to provide China Mobile with working silicon for the launch of the
world's first TDD-LTE demonstration network in Shanghai in May of 2010.
Sequans' technology was approved by China's MIIT for use in China and was also
used in one of six major commercial trials China Mobile has deployed. Sequans'
TDD-LTE technology is operating in commercial networks in Brazil and
Australia.

Clearwire LTE and Band Class 41

Clearwire's next-generation LTE Advanced-ready network will operate according
to the 3GPP Band 41 specification, which aligns to Clearwire's 2.6 GHz
spectrum frequency. Clearwire's LTE network is expected to be a major
advancement over the current LTE networks deployed in the U.S. because it will
be designed to provide far more broadband capacity than is possible with
today's other 4G networks.With more than 160MHz of spectrum available in the
100 largest markets in the U.S., Clearwire's LTE Advanced-ready network should
position the company as the clear leader in 4G mobile broadband technology,
capable of serving the current and anticipated future demands of wholesale and
retail customers.

Clearwire expects that multi-band, multi-mode TDD-LTE devices that can run on
its network and other networks will be commercially available in 2013.

About Sequans Communications

Sequans Communications S.A. (NYSE:SQNS) is a 4G chipmaker, supplying LTE and
WiMAX chips to original equipment manufacturers and original design
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, South Korea, and
China. www.sequans.com; Twitter: www.twitter.com/sequans

The Sequans Communications S.A. logo is available at
http://www.globenewswire.com/newsroom/prs/?pkgid=12733

About Clearwire

Clearwire Corporation (Nasdaq:CLWR), through its operating subsidiaries, is a
leading provider of 4G wireless broadband services offering services in areas
of the U.S. where more than 130 million people live.The company holds the
deepest portfolio of wireless spectrum available for data services in the
U.S.Clearwire serves retail customers through its own CLEAR^® brand as well
as through wholesale relationships with some of the leading companies in the
retail, technology, and telecommunications industries, including Sprint. The
company is constructing a next-generation 4G LTE Advanced-ready network to
address the capacity needs of the market, working closely with the Global
TDD-LTE Initiative and China Mobile to further the TDD-LTE ecosystem.
Clearwire is headquartered in Bellevue, Wash. Additional information is
available at http://www.clearwire.com.

Forward-Looking Statements

This release contains forward-looking statements which are based on
management's current expectations and beliefs, as well as on a number of
assumptions concerning future events made with information that is currently
available. Forward-looking statements may include, without limitation,
expectations regarding the companies' respective network development and
market launch plans and the provision of wholesale roaming services under the
agreement being entered into. The words "will," "would," "may," "should,"
"estimate," "project," "forecast," "intend," "expect," "believe," "target,"
"designed," "plan" and similar expressions are intended to identify
forward-looking statements. Readers are cautioned not to put undue reliance on
such forward- looking statements, which are not a guarantee of performance and
are subject to a number of uncertainties and other factors, which could cause
actual results to differ materially and adversely from such statements. For a
more detailed description of the factors that could cause such differences,
please refer to the filings made by Clearwire and Sequans Communications, with
the Securities and Exchange Commission, including the information under the
heading "Risk Factors" in the parties' respective Annual Reports on Form 10-K.
The parties assume no obligation to update or supplement such forward-looking
statements.

CONTACT: Sequans Contacts
         Media Relations:
         Kimberly Tassin, +1.425.736.0569, Kimberly@sequans.com
        
         Investor Relations:
         Claudia Gatlin, +1 212.830.9080, Claudia@sequans.com
        
         Clearwire Contacts
         Investor Relations:
         Alice Ryder, 425-636-5828
         alice.ryder@clearwire.com
        
         Media Relations:
         Susan Johnston, 425-216-7913
         susan.johnston@clearwire.com
        
         JLM Partners for Clearwire
         Mike DiGioia or Jeremy Pemble, 206-381-3600
         mike@jlmpartners.com or jeremy@jlmpartners.com

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