Light Reading

Adaptix Launches IPR Salvo at Clearwire

Dan Jones
LR Mobile News Analysis
Dan Jones, Mobile Editor
12/18/2008
50%
50%

Adaptix Inc. has filed a patent infringement complaint against Clearwire LLC (Nasdaq: CLWR) and Sprint Corp. (NYSE: S), alleging that the operators are infringing on its patents by “offering WiMax services to customers” in compliance with Institute of Electrical and Electronics Engineers Inc. (IEEE) fixed and mobile 802.16 standards.

The complaint focuses on six patents Adaptix has been awarded related to the orthogonal frequency-division multiplexing (OFDM) technology that underpins both WiMax and LTE (long-term evolution) wireless broadband. (See 4G or Not 4G?) Adaptix filed the original complaint with the Texas Eastern District Court on Dec. 1, 2008. The firm is looking for an as-yet-unspecified amount of damages from the defendants.

"Clearwire Corp., Clearwire Legacy, and Sprint each has infringed and/or continues to infringe… Patent[s] by offering WiMAX (“Xohm” or “Clear”) services to customers in compliance with the 802.16 and 802.16e WiMAX standards, and by making, using and/or selling the supporting WiMAX network used to provide such WiMAX services,” writes Adaptix in its complaint. “Adaptix is entitled to recover from each Defendant the damages sustained by Adaptix as a result of each Defendant’s wrongful acts in an amount subject to proof at trial.”

None of the protagonists in this case are yet commenting on the complaint. Both Clearwire and Sprint said it's against their respective policies to comment on pending legal action. “Relative to this matter, I am unable to comment on pending litigation,” a spokesperson from Adaptix told Unstrung.

Base station vendor Adaptix has been awarded several patents in the U.S. and overseas related to OFDM over the years. (See Adaptix Awarded Patent and Adaptix Granted Patent.) The company originally referred to its technology as OFDMA/TDD, which works by assigning sub channels to individual users dynamically in time.

Adaptix has said in previous public releases that its patents “describe important capabilities for both mobile and fixed 4G wireless systems based on OFDMA. Such systems may include, but are not limited to, Mobile WiMAX (IEEE 802.16e), 3GPP’s Long Term Evolution (LTE), Next Generation Personal Handyphone System (NG-PHS) and 3GPP2’s Ultra-Mobile Broadband.”

Clearwire and Sprint are by no means the only operators currently offering services based on the IEEE 802.16 standard. DigitalBridge Communications Corp. and Towerstream Corp. (Nasdaq: TWER) both have significant WiMax footprints among many other smaller operators in the U.S. and beyond. (See WiMax: What's Working Now.)

— Dan Jones, Site Editor, Unstrung

(0)  | 
Comment  | 
Print  | 
Newest First  |  Oldest First  |  Threaded View        ADD A COMMENT
Flash Poll
From The Founder
Ericsson's Hyperscale Datacenter System (HDS) 8000, featuring Intel's Rack Scale Architecture, caused a stir when it was announced at MWC 2015. For more on this revolutionary product, join me on Thursday, April 30 at 12:00 p.m. EST for a Super Webinar event, A New Hardware Paradigm for the Telco Data Center.
LRTV Documentaries
Cox Eyes Cloud-Based Home Networks

4|27|15   |   05:30   |   (0) comments


Cox's Jeff Finkelstein explains how moving services to the cloud will let cable deliver services faster and eliminate constant hardware replacements.
LRTV Documentaries
CableLabs' Clarke Updates Cable Virtualization

4|23|15   |   05:41   |   (1) comment


Former BT exec now leading CableLabs' NFV and SDN efforts explains key role of open source and updates efforts to virtualize the home network.
LRTV Interviews
Ericsson's CTO Talks Transformation: Pt. II

4|23|15   |   08:19   |   (1) comment


In the second installment of an in-depth two-part interview, Ericsson's CTO Ulf Ewaldsson talks to Light Reading CEO and founder Steve Saunders about cultural change, network slicing and technology advances.
LRTV Interviews
Ericsson's CTO Talks Transformation: Pt. I

4|23|15   |   09:27   |   (3) comments


In the first installment of an in-depth two-part interview, Ericsson's CTO Ulf Ewaldsson talks to Light Reading CEO and founder Steve Saunders about the incredible transformation underway in the communications networking industry.
LRTV Documentaries
LTE Paves the Way for the 5G Revolution

4|20|15   |   4:20   |   (0) comments


Håkan Andersson, head of 5G product strategy of the Radio Business Unit at Ericsson, discusses the role of LTE, the US and other industry verticals in building a true 5G ecosystem.
LRTV Documentaries
The 3GPP's Road to 5G Standardization

4|17|15   |   4:43   |   (0) comments


Satoshi Nagata, chairman of the 3GPP's TSG-RAN group and a manager at NTT Docomo, explains the standardization process for 5G, as well as the biggest challenges and opportunities.
LRTV Documentaries
AlcaLu CTO Makes the Case for a New 5G Air Interface

4|16|15   |   3:54   |   (0) comments


Michael Peeters, CTO of wireless at Alcatel-Lucent, explains why 5G will require a new air interface to meet its diverse performance targets.
LRTV Documentaries
AlcaLu + Nokia: The New Uber-Vendor

4|15|15   |   2:42   |   (4) comments


Heavy Reading Senior Analyst Gabriel Brown discusses the technological and competitive opportunities and challenges if a merger between Alcatel-Lucent and Nokia comes to pass.
LRTV Huawei Video Resource Center
Huawei's Data Center Power Play

4|15|15   |   6:22   |   (0) comments


Huawei has developed industry-leading energy efficiency capabilities for its indoor and outdoor data center solutions, explains Dr. Fang Liangzhou, vice president of Huawei's Network Energy product Line.
LRTV Huawei Video Resource Center
Huawei’s Routers, Switches Get the Green Mark

4|15|15   |   2:02   |   (0) comments


TUV Rheinland's Frank Dudley explains how Huawei's routers and switches have been successfully tested by energy efficiency experts and have gained Green Mark Certification.
LRTV Documentaries
A Finn, a Frenchman & a Guy From New Jersey Walk Into a Merger...

4|15|15   |   3:17   |   (0) comments


Stop us if you've heard this one before... Light Reading CEO Founder & CEO Steve Saunders weighs in on the technical and cultural implications of a Nokia and Alcatel-Lucent merger.
LRTV Huawei Video Resource Center
Accounting for Better Solutions

4|10|15   |   02:31   |   (1) comment


Murad Yousuf, CTO at Saudi Arabia's Ministry of Finance (Dept. of Zakat & Income Tax), talks about the benefits of deploying router technology from Huawei.
Upcoming Live Events
May 6, 2015, Georgia World Congress, Atlanta, GA
May 12, 2015, Grand Hyatt, Denver, CO
May 13-14, 2015, The Westin Peachtree, Atlanta, GA
June 8, 2015, Chicago, IL
June 9-10, 2015, Chicago, IL
June 9, 2015, Chicago, IL
June 10, 2015, Chicago, IL
September 29-30, 2015, The Westin Grand Müchen, Munich, Germany
October 6, 2015, Westin Peachtree Plaza, Atlanta, GA
November 11-12, 2015, The Westin Peachtree Plaza, Atlanta, GA
All Upcoming Live Events
Infographics
In its latest survey covering network operators' plans and strategies for ICT transformation, Heavy Reading asked telecom operators worldwide to identify the most important goals and objectives for their ICT transformation initiatives. Heavy Reading also asked operators about the importance of a "digital first" strategy, which enables customers to complete an interaction across different digital channels, such as web and mobile self-service and social media.
Hot Topics
Comcast Formally Ends Its Bid for TWC
Mari Silbey, Independent Technology Editor, 4/24/2015
Comcast Reportedly Dropping $45B TWC Bid
Sarah Thomas, Editorial Operations Director, 4/23/2015
Adtran Is Developing White Box GPON Tech
Ray Le Maistre, Editor-in-chief, 4/24/2015
Google's WiFi-First Mobile Service 'Fi' Is Here
Dan Jones, Mobile Editor, 4/22/2015
Amazon Earnings: What to Watch For
Mitch Wagner, West Coast Bureau Chief, Light Reading, 4/23/2015
Like Us on Facebook
Twitter Feed
Webinar Archive
BETWEEN THE CEOs - Executive Interviews
Many leading communications companies can claim to have undergone significant periods of reinvention during their histories, but none have been through more major ...
Data Center Interconnect, or DCI, is one of the hottest sectors in telecom currently. Since coming back to Light Reading last year, prodigal-son style, I've ...
Cats with Phones
Learning Curve Click Here
Pierre could never remember how to use Excel.
Latest Comment