Definition:
Developed by the Institute of Electrical and Electronics Engineers (IEEE) 802.16 standard is calculated on the implementation of urban wireless technology that provides wireless connectivity to the Internet via public access points 802.11 and serves as a wireless "extension" cable lines and DSL lines to " last mile wireless broadband access infrastructure.
Specifications Standard 802.16a, approved in January this year and providing the equipment in a range from 2 to 11 GHz, is an extended version of the technical characteristics of the standard IEEE 802.16, approved in December 2001, a wide range of frequencies, provide for standards 802.16, allows you to deploy channels high data throughput with the use of transmitters to be installed on the masts of cellular networks and high-rise buildings. The receiving and transmitting equipment operating under this standard, can only be in line of sight.
Features standard 802.16a:
- Range: up to 50 kilometers.
- Coverage: advanced work beyond line of sight can improve the coating quality of range.
- Frequency: 2 GHz to 11 GHz.
- Spectral Efficiency: Up to 5 bps / Hz.
- Maximum data rate per sector: up to 70 Mbps per sector in a single base station. A typical base station has up to 6 sectors.
- Quality of service: service quality is monitored at the level of media access control that allows the use of differentiated service levels. This enables businesses to provide services such as T1, and home users - such as DSL, as well as to voice and video.
- Carrier-class solution: This standard provides scope for scalability needed to support hundreds of thousands of users by a single base station, and allows us to differentiate levels of service. One sector of one base station can provide data rates sufficient for simultaneous service of more than 60 companies that are connected by channels such as T1, and hundreds of houses, connected by channels such as DSL. A typical base station has up to 6 sectors.
- Small Investment Risk: This standard brings to service providers neokupaemosti lower risk investment compared with the original decisions on the organization of broadband access, projected on order. Compatibility of equipment, capable of operating in this standard allows the operator to reduce the cost of the final client equipment and the simultaneous use of equipment from different manufacturers. Customer service and management of this service can be performed remotely, reducing operating costs.
- Quality of service: media access control 802.16 is designed to support voice and video.
- Wide coverage: advanced work out of sight can improve the coating quality of range, which means that a greater number of end users will be able to receive high-speed wireless Internet access.
- High speed data transfer: Corporate users can obtain services such as T1 at competitive rates with a monthly payment without having to wait for several months required for the organization of the channel. Home users are not able to connect to broadband cable lines, or lines, DSL, can use the equivalent wireless services at competitive rates.
- Less-expensive broadband Internet access through the use of alternative solutions at the stage of 'last mile' in the market for broadband wireless access, which is currently dominated by wired access, cable lines and lines of DSL.
Non-profit organization WiMAX
For non-profit organization WiMAX, formed to promote the development of wireless access equipment to broadband networks and its certification on interoperability, join the leading manufacturers of communications facilities and components. Currently, the organization brings together WiMAX companies such as Airspan Networks, Alvarion Ltd., Aperto Networks, Ensemble Communications Inc., Fujitsu Microelectronics America, Intel Corporation, Nokia, OFDM Forum, Proxim Corporation and Wi-LAN Inc.The efforts of the group members focused on accelerating the market entry of wireless broadband communications equipment that meets the requirements of 802.16, developed by the Institute of Electrical and Electronics Engineers (IEEE *), with a view to the speedy deployment of broadband networks throughout the world and, in particular, to address the "last mile.
802.16, as amended by IEEE in January this year as a supplement 802.16a, covering the frequency range from 2 to 11 GHz, is a technology organization of regional wireless connectivity to the Internet via public access points, corresponding to 802.11, while the problem the last mile is solved by a kind of "extension" cable and digital subscriber lines (DSL) through the use of wireless communication means. Due to this area, served by these lines, it appears within a radius of 50 km, providing users of broadband connectivity without the need to run a physical line to the base station. Speed bidirectional communication in the application of wireless broadband technologies as high as 70 Mbps and throughput of only one sector of base station (with each such station can serve up to six sectors) is sufficient to support more than 60 corporate LAN connection type T1, along with hundreds of home users connected to the type of DSL.
"The organization of wireless broadband Internet access to more than 2500 regions of the U.S., where there is still a shortage of Internet service providers, now comes with solutions based on tailor-made technology - said WiMAX President Margaret Lyabrek (Margaret LaBrecque). - Implementation of solutions based on 802.16 standard will lead to increasing productivity and reliability of communications systems while reducing equipment cost and investment risk. "
Organization of the corporate network to access the type T1 is now up to three months or more. Wireless broadband technology based on 802.16 standard, provides high-speed network access, similar to cable broadband solutions, will shorten the deployment of such a network to several days, and its cost will fall several times.The provider will be able to provide a means of high-speed connectivity on demand to the organizers of such events, such as trade fairs, serve hundreds of thousands of users via public access points, corresponding to 802.11, or to arrange a temporary broadband connection in the field of production and ongoing operations (eg, on construction sites).
Over the next year-for-profit organization WiMAX will develop test plans, equipment compatibility, choice of certification of laboratories and the organization of events dedicated to issues of compatibility for equipment suppliers, based on 802.16. Provided for and cooperation with experts of the European Telecommunications Standards Institute (ETSI) to develop plans for testing equipment for compliance with European standards HIPERMAN * the organization of regional networks with wireless broadband.
"Far from diminishing the critical importance of standards, it should be noted that by themselves they can not provide the mass introduction of new technologies - indicates Roger Marx (Roger Marks), chairman of the initiative group on the development of IEEE 802.16 standard. - Organization of WiMAX has initiated the removal of obstacles to such implementation by highlighting opportunities for synergy and reduce the cost of deploying wireless broadband networks. "
Guided by the same approach that the Alliance and Wi-Fi, which could give new impetus to the development of wireless local area networks, WiMAX-profit organization engaged in development techniques and testing equipment for interaction by assigning successfully pass this test systems, the label "Certified WiMAX».
Association of Suppliers of wireless warmly welcomes the introduction of voluntary standards for interoperability as a key condition for reducing the cost and scale deployment of wireless broadband networks, "- said president of the Association, Andrew Craig (Andrew Kreig).
The World Conference in 2003 on the organization of a wireless broadband (San Jose, ea. Calif.) initiative group will hold a seminar on the organization's efforts in this area. Representatives of companies participating in the activities of WiMAX, will talk about the role and tasks of the organization, the differences between 802.16 and 802.11, the procedure for certification of equipment for compliance with the requirements of WiMAX, as well as the use of 802.16 standard taking into account the specificities of different countries. More information about the event is available online at: www.shorecliffcommunications.com.
Briefly about the organization WiMAX
Non-profit organization WiMAX (World Interoperability for Microwave Access - the interaction of network access equipment at microwave frequencies around the world) was founded to promote the development of wireless access equipment to broadband networks based on the specifications of IEEE * 802.16 wireless networking zone, certification of such equipment compatibility and interoperability as well as accelerate its market entry. Additional information is available online at: www.wimaxforum.org.
Feedback from participants:
Company Airspan Networks (www.airspan.com)
Approval of additions to the standard of 802.16a, undoubtedly, will serve as a catalyst for growth in production of wireless broadband network access, - said Eric Stonestreet (Eric Stonestrom), president and CEO of Airspan. - Similarly, previously incorporated the new technologies, the spread of a single standard for broadband wireless access around the world will bring huge dividends to the industry as a whole, we also make further efforts to achieve true compatibility and interoperability of products of competing suppliers. "
The company Alvarion Ltd. (Www.alvarion.com)
As pointed out by Rudy Leser (Rudy Leser), Vice President of Marketing of Alvarion, "we want the full success of the organization WiMAX, designed to ensure compatibility and interoperability of standards-based 802.16a - essential prerequisites for accelerated introduction of wireless broadband access.Adoption of common standards for the equipment of wireless network access will benefit not only the operating companies, but also the suppliers and users of wireless systems solutions. Our company, with its 10 years of experience in the field of wireless networking and a half million installed sets the subscriber terminal equipment, intends to continue to play an important role in the organization WiMAX ».
Company Aperto Networks (www.apertonet.com)
"These forums, like WiMAX, play a key role in accelerating the implementation of industry standards and ensuring interoperability, - emphasizes Alan Menezes (Alan Menezes), vice president of the Aperto Networks in marketing. - As participants of this forum, we expect that the intense activity of the initiative group of IEEE for the development and implementation of standard 802.16a, in cooperation with other international standards bodies will bring tangible results as the suppliers of network services and users, in whose eyes WiMAX certification label will guarantee full compatibility and interoperability of products around the world. "
Company Ensemble Communications Inc. (Www.ensemble.com)
"We fully support the efforts of the organization WiMAX, undertaken for the benefit of all providers of fixed wireless broadband access equipment - said Doug Gray (Doug Gray), CEO of Ensemble Communication, responsible for managing the production of commodities. - These efforts are aimed at the further spread of 802.16, interacting standard equipment across the globe, contribute to the emergence of telecom operators and service providers more efficient and effective solutions. In addition, we warmly welcome the expansion of the scope of the organization of WiMAX as a result of approval of additions to the standard of 802.16a, covering the frequency range of 2 to 11 GHz. Along with the higher range of 10 to 66 GHz, this equipment will provide the basis for a unified, cost-effective wireless network access platform designed to bridge the gap between technology and DSL, on the one hand, cheap mednoprovodnymi communication lines, and on the other - Fibre Channel, providing users with belonging to various categories of data transfer rate in the range from several to hundreds of megabits per second. "
Company Fujitsu Microelectronics America (WWW.FMA.FUJITSU.COM / ASIC)
"With the approval of specifications 802.16a wireless service provider network access have access to a regular, highly effective solution to the problem of" last mile "- said Aditya Agrawal (Aditya Agrawal), senior manager of Fujitsu Microelectronics America, responsible for sales and marketing of wireless systems, performed on a single chip. - Activities of the WiMAX Forum has played a key role in the mass introduction of standard 802.16a, since this organization has certified based on its products and technologies. Fujitsu has become one of the first suppliers of semiconductor equipment, announced the organization of production equipment operating in base band, based on 802.16a standard and the requirements of WiMAX ».
Corporation Nokia (www.nokia.com)
"Based on our belief in the crucial role of standards in ensuring the continued production growth of wireless broadband networking equipment, we have made very significant efforts to develop standards 802.16 and education organization WiMAX, - indicates Ari Lepp (Ari Leppa), head of production development and marketing of wireless broadband network unit corporations Nokia.- Reducing the cost of standards-based equipment will expand the capabilities of telecom operators to deploy wireless broadband networks in areas that remain inaccessible to the modern cable networks. "
Forum OFDM (www.ofdm-forum.com)
"We are very pleased with our participation in the organization WiMAX, whereby our task - to ensure compatibility and interoperability of technology-based multiplexing Orthogonal Frequency Division Multiplexing (OFDM) - is very real," - emphasizes the OFDM Forum's Executive Director Peter Nares (Peter Nurse) .
Corporation Proxim Corporation (www.proxim.com)
"We have accumulated rich experience in supporting and promoting industry standards - recalled Quinn Duffy, senior vice president and general manager of Proxim its divisions to develop and manufacture tools for geographically distributed networks. - We strive for active participation in the organization of WiMAX IEEE 802.16 standards implementation and interoperability of products from different vendors. "
Association of suppliers of wireless communications (WCA) (WWW.WCAI.COM)
"Our organization applauds the introduction of voluntary standards aimed at ensuring the compatibility and interoperability as a key prerequisite for reducing the cost and scale deployment of wireless broadband networks, - points WCA President Andrew Craig (Andrew Kreig). - That is why we participated more in the first, crucial meeting in July 1998, during which the ball is formed by the initiative group on the development of IEEE 802.16 standard. Results of its operations, which enjoys effective support of WiMAX and other organizations, we are very positive view from the perspective of the industry as a whole. We hope that further efforts to improve wireless broadband solutions will be undertaken in collaboration with our Association, thus contributing to broad-based participation of all sectors and avoiding the dispersion of our forces and resources, especially given the financial difficulties that we all have faced in recent times .
The company Wi-LAN Inc. (Www.Wi-LAN.com)
"By joining the forum WiMAX, we were among the initiators of the standard 802.16a, - recalled Dr. Sayed-Amr al-Hamamsi (Sayed-Amr El-Hamamsy), president and COO of Wi-LAN Inc. - Being committed to the introduction of hot standard 802.16a, developed by experts IEEE, and guided by a wealth of experience gained in the development of product families LIBRA technology-based W-OFDM, and occupying a leading position in the application of this standard, we urge all interested parties, including manufacturers semiconductor tools, suppliers of intellectual property and other manufacturers of wireless broadband equipment to join the WiMAX Forum and support the implementation of the standard 802.16a ».
We thank the Russian representation of Intel for the material
Posted - April 15, 2003
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