Showing posts with label Whitespaces. Show all posts
Showing posts with label Whitespaces. Show all posts

Wednesday, September 17, 2014

IEEE Publishes 802.19.1 Standard for TV White Spaces

IEEE released its 802.19.1 “Standard for TV White Space (TVWS) Coexistence Methods”.

IEEE 802.19.1 specifies radio technology independent methods for coexistence among dissimilar or independently operated wireless networks operating in TVWS. The standard is also intended to do the following:

  • Leverage the cognitive radio capabilities of the TVWS devices, including geolocation awareness and access to information databases;
  • Specify a coexistence discovery and information server, which gathers and provides coexistence information regarding TVWS networks;
  • Specify a coexistence manager, which utilizes the information from the coexistence server in order to enhance the coexistence of the TVWS networks; and
  • Define common coexistence architecture and protocols, as well as several profiles to enable cost-efficient and flexible deployment of the coexistence system in various scenarios.

“The IEEE 802.19.1 standard enables the family of IEEE 802® wireless standards to effectively utilize the TV white space,” said Steve Shellhammer, chair of the IEEE 802.19™ Wireless Coexistence Working Group. “This is accomplished by providing standardized coexistence methods among dissimilar or independently operated TVWS networks. The TVWS is made up of vacant frequencies made available for unlicensed use and provides good RF propagation characteristics for unlicensed wireless communications. The IEEE 802.19.1 standard is intended to help achieve fair and efficient spectrum sharing.”

Thursday, January 16, 2014

Carlson Wireless Gains FCC Certification for TV White Space Radio

Carlson Wireless Technologies has been granted certification by the FCC for its RuralConnect TV white space (TVWS) radio system for use with the Spectrum Bridge TV white spaces database.

RuralConnect delivers extended coverage, non-line-of-sight (NLOS) broadband connectivity by transmitting over TV white space (TVWS) frequencies, 470 to 698 MHz.

"FCC certification enables us to offer this technology domestically," said Jim Carlson, CEO of CWT. "And because of the FCC's stature worldwide, it also gives a boost to global efforts to adopt TVWS technology," Carlson continued. "Providing connectivity to underserved populations worldwide is more than an interest to us. It's our corporate mission."

Carlson Wireless noted that RuralConnect has operated for the last three years in more than 58 trial deployments both domestically and internationally, including a highly successful trial with Google and others in 2013 with schools in Cape Town, South Africa. These trials have played a pivotal role in demonstrating to both regulators and potential users the ability of TVWS technology to provide high-speed data across rugged terrain.

In 2014, CWT will seek FCC approval for use of RuralConnect with other approved databases by Google and iconectiv.

Sunday, April 28, 2013

UK Plans White Space Trial

Ofcom, the official telecoms regulatory authority for the U.K.,  announced plans for a pilot of white space technology.  The study will test the inter-operation of white spaces devices, white space databases and the processes to mitigate against causing any undue interference to current spectrum users.

Specifically, Ofcom is inviting industry to take part in the pilot, which is intended to take place in the autumn. The locations for the trial will be chosen once trial participants have been identified.

Ofcom anticipates that the white space technology could be commercially rolled out during 2014, pending a successful trial this year.

Ed Richards, Ofcom Chief Executive, said: “Ofcom is preparing for a future where consumers’ demand for data services will experience huge growth. This will be fuelled by smartphones, tablets and other new wireless applications. White space technology is one creative way that this demand can be met. We are aiming to facilitate this important innovation by working closely with industry.”

Thursday, April 11, 2013

Neul Appoints Stan Boland as CEO

Neul, a startup developing solutions for whitespace wireless, has appointed Stan Boland as its new CEO.

Boland was previously CEO and co-founder of Icera, a UK-based company building 4G/3G/2G cellular chipsets and software which was acquired by Nvidia in 2011 for $367 million. Prior to this, he was CEO and co-founder of Element 14, a UK company building ADSL chipsets and software which was acquired by Broadcom in 2000 for $640 million.

Neul, which is based in Cambridge, U.K., is the first to deploy white space wireless network technology based on the royalty-free, open network standard, Weightless, and the first to develop a single chip white space transceiver.

"I am thrilled to be joining Neul, probably the most exciting company globally in the wireless space. Its technology is strongly complementary to cellular technologies through the provision of coverage and capacity needed for the large numbers of devices intrinsic to industrial applications for the internet", commented Stan Boland.

Monday, March 25, 2013

TV White Space Trial Set for Cape Town

The first TV White Space (TVWS) trial in South Africa will test wireless broadband in ten schools across the Cape Town area.  The trial is led by Google, Carlson Wireless and other partners.

The trial will attempt to show that broadband can be offered over white spaces without interfering with licensed spectrum holders. To prevent interference with other channels, the network utilizes Google's spectrum database to determine white space availability. Carlson's RuralConnect Broadband Solution, enabled by the Neul Horizon software, provides the communications backbone for the trial; outputting broadband Internet while interacting with the Google database to ensure proper channel assignment.

Jim Carlson, President of Carlson Wireless, stated, "'This is a small example of TVWS spectrum overcoming a need that exists all over the world...providing connectivity to underserved areas is more than an interest to us, it's specifically what got us into the game. We are overjoyed to participate in such a project, helping to provide schools with a fundamental service."

Wednesday, January 23, 2013

Japan Tests 802.22 TV White Space Network

Japan's National Institute of Information and Communications Technology (NICT), Hitachi Kokusai Electric Inc. and ISB Corp. are testing a TV White Space Network based on the IEEE 802.22 standard operating at 470 MHz - 710 MHz.

The prototypes TV White Space base station (BS) and consumer premise equipment (CPE) were developed by NICT and Hitachi Kokusai Electric.

The PHY part, which was provided by Hitachi Kokusai Electric, allows the devices to use vacant TV bands over the frequency range from 470-710MHz.  The MAC layer part, which was provided by NICT, ensures point-to-multipoint access with various QoS levels.  It also offers interference estimation, geo-location and white space data base (WSDB) access over the IP.  ISB Corporation provided the white spaces database to avoid interference with incumbent TV broadcasters.

The organizations are optimistic that these prototypes could provide broadband wireless access to underserved and unserved regional areas around the world as well as bringing reliable backup broadband communications in an emergency.

Sunday, November 25, 2012

UK Issues White Spaces Proposal

Ofcom, the official telecoms regulator for the UK,  published detailed proposals for consumer devices using "white spaces" spectrum.

Ofcom said its framework will ensure that the devices do not interfere with existing licensed users of the spectrum, which include DTT and wireless microphone users.  The idea is to allow white space devices to operate without the need for a licence. New legislation is needed to support this proposal.  Ofcom is seeking public consultation on the issue.

Ed Richards, Ofcom Chief Executive, said: "From rural broadband to enhanced Wi-Fi, white space technology offers significant opportunities for innovation and enterprise in the UK. "It also represents a fundamentally different approach to using spectrum by searching and recycling unused gaps in the airwaves. This could prove critical in averting a global spectrum capacity crunch, as consumers demand more bandwidth over different devices."

Wednesday, October 17, 2012

Japan's NICT Develops White Spaces Prototype

Japan's National Institute of Information and Communications Technology (NICT) has developed a prototype wireless device that operates in the TV White Space (TVWS) spectrum (470 MHz - 710 MHz) and based on the IEEE 802.11af draft specification. 

NICT said its prototype verifies the physical (PHY) and media access control (MAC) layer design of the draft specification.

It uses a single 6 MHz TV channel to operate and is implemented with a transmission power of 20 dBm. The prototype has an interface and co-worked with White Space Data Base (WSDB) developed by NICT and the full MAC specification of the secured protocol is implemented for primary user (licensed TV broadcaster) protections. The prototype also has an interface and co-works with the Registered Location Secure Server (RLSS) that is defined in the 802.11af draft standard to avoid interference with other white space users (secondary users). 

  • In March 2012, the IEEE approved P802.22b Amendment Project for Enhanced Broadband Services and Monitoring Applications.The new amendment enhances the IEEE 802.22-2011 standard to accommodate a wide variety of applications using cognitive radio technology in Television White Spaces (TVWS). These applications include long range and regional area smart grid, critical infrastructure monitoring, triple play services like providing voice, video and data, backhaul for broadband access, offloading cellular telephony traffic, regional area public safety and homeland security networks, emergency broadband services, monitoring rain forests, monitoring livestock, and border protection etc.

Additional information on this amendment PAR can be found on the IEEE 802.22 WG webpage.
  • In July 2011, The IEEE published the 802.22 standard for Wireless Regional Area Networks (WRANs) using the favorable transmission characteristics of the VHF and UHF TV bands. 802.22 enables broadband wireless access over a large area up to 100 km from the transmitter. The standard specifies up to 22 Mbps per channel without interfering with reception of existing TV broadcast stations, using the so-called white spaces between the occupied TV channels.

    IEEE 802.22 incorporates advanced cognitive radio capabilities including dynamic spectrum access, incumbent database access, accurate geolocation techniques, spectrum sensing, regulatory domain dependent policies, spectrum etiquette, and coexistence for optimal use of the available spectrum.