Home – Products & Services – Where To Buy –
How It Works –
Coverage –
Marine Satellite Service - About Us –
Contact
Us
|
Home – Products & Services – Where To Buy –
How It Works –
Coverage –
Marine Satellite Service - About Us –
Contact
Us |
|
| ||||||||||||||||||||||||||||||||
http://www.traderock.com Traderock is a world distributor of wimax or WiMax wireless internet products, hardware, software and support. World distributor of Nera and Thrane bgan terminals, Inmarsat and Iridium service provider with airtime plans. contact Traderock for more info. Traderock supports its products WiMax wireless internet or Bgan satellite internet, which system is for me? Below is a explanation what wimax is and what bgan is! What is wimax or WiMax, wi-max and who supports it, who supply's it, who makes it? We at Traderock operates as sales agent for wimax systems.
You can requst more info via us, pricing and system design suggestions and
we are in daily contact to the leading manufacturers of these WiMax
systems and hardware What Product To Choose of the WiMax manufacturers? Traderock represents Aperto Networks systems. Aperto Networks is committed to helping you maximize the
return on your investment. Aperto offers technical support services to
help ensure that your Aperto products operate efficiently, remain highly
available, and benefit from the most up-to-date software releases.
When you need more info about Apertos WiMax solutions, contact Traderock at www.traderock.com go to CONTACT US page
WiMAX is defined as Worldwide Interoperability for Microwave Access by the WiMAX Forum, formed in April 2001 to promote conformance and interoperability of the IEEE 802.16 standard, officially known as WirelessMAN. The Forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL". The IEEE 802.16 Working Group on Broadband Wireless Access Standards, which was established by IEEE Standards Board in 1999, aims to prepare formal specifications for the global deployment of broadband Wireless Metropolitan Area Networks. The Workgroup is a unit of the IEEE 802 LAN/MAN Standards Committee. Although the 802.16 family of standards is officially called WirelessMAN, it has been dubbed “WiMAX” by an industry group called the The WiMAX Forum. The mission of the Forum is to promote and certify compatibility and interoperability of broadband wireless products. The acronym WiMAX expands to "Worldwide Interoperability for Microwave Access". The first 802.16 standard was approved in December 2001 and was followed by two amendments – 802.16a and 802.16c to address issues of radio spectrum and inter-operability, respectively. In September 2003, a revision project called 802.16REVd commenced aiming to align the standard with aspects of the European Telecommunications Standards Institute (ETSI) HIPERMAN standard as well as lay down conformance and test specifications. This project concluded in 2004 with the release of 802.16-2004 and the withdrawal of the earlier 802.16 documents including the a/b/c amendments. Amendments to the standard Active amendments: 802.16f – Management Information Base 802.16g - Management Plane Procedures and Services
802.16h - Improved Coexistence Mechanisms for License-Exempt
Operation Certification IEEE 802 refers to a family of IEEE standards about local area networks and metropolitan area networks. More specifically, the IEEE 802 standards are restricted to networks carrying variable-size packets. (By contrast, in cell-based networks data is transmitted in short, uniformly sized units called cells. Isochronous networks, where data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also out of the scope of this standard.) The number 802 was simply the next free number IEEE could assign, though "802" is sometimes associated with the date the first meeting was held - February 1980. The services and protocols specified in IEEE 802 map to the lower two layers (Data Link and Physical) of the seven-layer OSI networking reference model. In fact, IEEE 802 splits the OSI Data Link Layer into two sub-layers named Logical Link Control (LLC) and Media Access Control, so that the layers can be listed like this: Data link layer The IEEE 802 family of standards is maintained by the IEEE 802 LAN/MAN Standards Committee (LMSC). The most widely used standards are for the Ethernet family, Token Ring, Wireless LAN, Bridging and Virtual Bridged LANs. An individual Working Group provides the focus for each area. General The IEEE 802.16 Air Interface Standard is truly a state-of-the-art specification for fixed broadband wireless access systems employing a point-to-multipoint architecture. The initial version was developed with the goal of meeting the requirements of a vast array of deployment scenarios for BWA systems operating between 10 and 66 GHz. As a result, only a subset of the functionality is needed for typical deployments directed at specific markets. An amendment is almost finished to do the same for systems operating between 2 and 11 GHz. Additionally, the IEEE process stops short of providing conformance statements and test specifications. In order to ensure interoperability between vendors competing in the same market, the WiMAX technical working groups were created by the leaders in IEEE 802.16 technology. The 802.16 standard, amended this January by the IEEE to cover frequency bands in the range between 2 GHz and 11 GHz, specifies a metropolitan area networking protocol that will enable a wireless alternative for cable, DSL and T1 level services for last mile broadband access, as well as providing backhaul for 801.11 hotspots. The new 802.16a standard specifies a protocol that among other things supports low latency applications such as voice and video, provides broadband connectivity without requiring a direct line of sight between subscriber terminals and the base station (BTS) and will support hundreds if not thousands of subscribers from a single BTS. The standard will help accelerate the introduction of wireless broadband equipment into the marketplace, speeding up last-mile broadband deployment worldwide by enabling service providers to increase system performance and reliability while reducing their equipment costs and investment risks. Overview of the IEEE 802.16a Standard, WiMAX and the IEEE 802.16a PHY Layer, IEEE 802.16a MAC Layer, Differentiating the IEEE 802.16a and 802.11 Standards - WiFi versus WiMAX Scalability, The WiMAX Forum-Interoperability for 802.16 Compliant Systems, Traderock The Definitive Source for Wireless Technology and Business
APERTO Aperto Networks has been a leading contributor to IEEE 802.16
and ETSI HiperMAN standards, making sure that key technical features such
as QoS and link adaptation enhancements were supported to stringent
carrier requirements. Aperto Networks was the first company to deliver
IEEE 802.16-class systems in 2000. Pre-WiMAX broadband wireless providers have often been
constrained by low-level networking and interoperability issues – limiting
their service offerings to raw bandwidth and basic Internet access. These
providers are realizing that while the new WiMAX standard helps ensure
compatibility, it does not by itself result in an optimized solution that
satisfies the whole range of operational and subscriber requirements.
Aperto’s industry-leading PacketMAX™ infrastructure permits service
provides to focus on their key business: offering competitive and
profitable services. PacketMAX lets providers differentiate themselves
from their competition by delivering the broadest array of services
architected around a fully optimized WiMAX solution.
Building on proven technologies and incorporating the latest
WiMAX-compliant features, the Aperto PacketMAX system gives network
operators the multiservices infrastructure they need to take full
advantage of the business opportunities offered by broadband wireless.
PacketMAX delivers the critical elements required to extend services to a
wide range of subscribers – ranging from large enterprises and
public-sector organizations to multitenet buildings and residences – using
a single, standards-based platform. Aperto® Network’s PacketWave® point-to-point product line
features a number of advanced technologies, several of which were
introduced to the point-to-point wireless market for the first time by
Aperto.
Accelerate your Design Cycle and Reduce Development Costs
A low cost, low power consumption chipset implementing the IEEE 802.16-2004 OFDM PHY layer protocol. The PHY has two complementary functions: to process data for transmission where the output is a Baseband I/Q signal or a programmable IF signal (real or complex). The process is reversed for the second function. For data reception, the PHY implements proprietary synchronization and channel equalization methods for OFDM.
Complete source code is included
A development platform to guide and support efforts in designing WiMAX compliant wireless systems using the DM256 chipset. Provides a plug-and-play, complete solution for the lower layer air interface and time critical low-level MAC functionality. WiMAX Certified designs for CPE Evolutive WiMAX DM256 ASIC
Highlights IEEE 802.16-2004 Compliant
Sequans patented technology enables ubiquitous Broadband Wireless Access, based on innovative silicon design, for WiMAX/WiBro applicationsSequans’ System-on-Chip solutions feature Sequans’ patented technology to extend the range and increase the capacity of WiMAX wireless networks, with flexible network architectures and integrated devices. Through smart combination of hardware and software, Sequans enables scheduling of real-time services, at the highest packet rates, and with full quality of service. Sequans has a comprehensive product offering including the System-on-Chip, a complete software stack as well as reference designs, both for the base station and subscriber station. These products are delivered with a complete development kit, including test and simulation software with user-friendly GUI, enabling smooth integration into system vendor’s designs. Sequans’ products are designed to fit a variety of applications, from high-end base stations down to pico-base stations, and from indoor-outdoor CPE units to home gateways, PC-cards, PDAs and handsets. This in turn enables very different network architectures: large cells for rural deployment, smaller cells for suburban environment, or pico cells in dense, urban environment. Sequans’ products are based on the IEEE 802.16 standard, and comply with the profiles put forward by the WiMAX Forum. They incorporate additional features designed to enhance performance, in terms of coverage and capacity, as well as support of real-time services. Sequans’ experience in implementation of such designs results in very low implementation margin, and optimized usage of the band. In addition to the minimum set of features that are mandatory for WiMAX certification, Sequans offers optional advanced WiMAX features which increase system performance, improve cell coverage, high throughput and low-latency to support real-time applications and reduce the total cost of the end-to-end solution. A few of Sequans’ advanced features are: Space Time Coding
SEQUANS’ SQN1110 system-on-chip (SoC) is the industry’s lowest power, lowest cost solution for manufacturers of WiMAX mobile stations. The SQN1110 is an advanced baseband chip compliant with the IEEE 802.16e-2005 standard. It implements in a single chip all MAC and PHY features required for wave 1 WiMAX certification, and is delivered with S-Cube, Sequans’ comprehensive software package. Applications The SQN1110 delivers wireless broadband connectivity for mobile, portable, nomadic and fixed applications. Its high level of integration enables it to fit into the smallest of mobile devices such as handsets, smartphones, and PDAs. It is also suitable for fixed devices such as desktop modems and residential gateways, and portable devices such as PC cards, PCI Express mini-cards, USB dongles, and SDIO modules. Benefits Sequans’ SQN1110 SoC enables the delivery of wireless
broadband services directly to the end-user on the move. Key to the
SQN1110’s powerful capability is the high-level integration of the PHY and
MAC that ensures the highest performance and functionality, and provides a
solid foundation for the development of cost-effective, low-power
terminals. SQN1110’s optimal partitioning of hardware, firmware and software between PHY and MAC achieves industry leading low-level power consumption, in both operating and sleep modes, which is critically important for battery operated terminals. SQN110 includes a DSP co-processor, which ensures flexible adaptation to changes in the WiMAX system profiles. SQN1110 implements total baseband processing in a single 12x12 mm2, 1.0 mm height device, therefore meeting the real estate requirements of small handheld devices. An RF-independent solution, SQN1110 operates in multiple frequency bands using tightly-coupled partner RF solutions, allowing manufacturers to address worldwide opportunities with minimal development effort. Highlights Full MAC & PHY solution
The SQN1010 System-on-Chip (SoC) provides system manufacturers with a comprehensive and integrated IEEE 802.16-2004 compliant baseband solution to develop cost-effective WiMAX Subscriber Stations. Implementing in a single chip all MAC and PHY features required for WiMAX Forum Certified™ Subscriber Stations, it offers optional 802.16 features for increased performance. Included with the SQN1010 is a complete software package running on the embedded processor, enabling easy integration into customer designs and reducing time-to-market. Benefits of the SQN1010 SoC Advanced PHY Layer Sequans offers unique RF capabilities via a fully digital
front end, integrating A/D and D/A converters, operating with any channel
width from 1.25 to 28 MHz. The SQN1010 enables superior RF performance
through advanced Digital Signal Processing techniques: Highlights Highly Integrated Baseband SoC SQN2010 System-on-Chip for WiMAX Base
Stations The SQN2010 System-on-Chip (SoC) provides system manufacturers a comprehensive and innovative IEEE 802.16-2004 compliant baseband solution to develop cost-effective WiMAX Base Stations. Implementing in a single chip all MAC and PHY features required for WiMAX Forum Certified™ Base Stations, it offers optional 802.16 features for increased performance. Included with the SQN2010 is a complete software package running on the embedded dual processor platform enabling easy integration into customer designs and reducing time-to-market. Benefits of the SQN2010 SoC Advanced PHY Layer The SQN2010 delivers unique RF capabilities through a fully
digital front end, integrating A/D and D/A converters, operating with any
channel width from 1.25 to 28 MHz. It enables superior RF performance
through advanced Digital Signal Processing techniques: Highlights Highly Integrated Baseband SoC SQN1010-RD Reference Design for WiMAX Subscriber
Stations The SQN1010-RD Reference demonstrates the capabilities of Sequans’ SQN1010 System on Chip (SoC) and Full Software Package. It enables system vendors to evaluate the performance of the SQN1010 solution, a highly integrated SoC that implements the full PHY and MAC layers necessary for 802.16-2004 compliant Subscriber Stations. In addition, the SQN1010-RD can be used to anticipate product development by integrating software, as well as validating RF solutions with Sequans’ baseband technology. Benefits of the SQN1010-RD Access to the SQN1010 SoC The SQN1010-RD highlights the features of the SQN1010 SoC. It
includes the complete PHY and MAC layers required for a WiMAX system, with
additional features such as robust synchronization, space time coding,
Automatic Repeat Request (ARQ) and PHS. Highlights Evaluate Sequans’ SQN1010 SoC technology and software
(S-Cube) SQN2010-RD Reference Design for WiMAX Base
Stations The SQN2010-RD Reference Design is a platform that demonstrates the capabilities of Sequans’ SQN2010 System on Chip (SoC) and Full Software Package. It enables system vendors to evaluate the performance of the SQN2010, a highly integrated SoC that implements the full PHY and MAC layers necessary for 802.16-2004 compliant Base Stations. In addition, the SQN2010-RD can be used to anticipate product development by integrating software, as well as validating RF solutions with Sequans’ baseband technology. Benefits of the SQN2010 RD Access to the SQN2010 SoC The SQN2010-RD highlights the features of the SQN2010 SoC. It
includes the complete PHY and MAC layers required for a WiMAX system, with
additional features such as full uplink subchannelization, support for
antenna diversity, real-time services, ARQ and PHS. Highlights Evaluate Sequans’ SQN2010 SoC
technology Sequans’ Software Solution (S-Cube) is Sequans’ software package designed for WiMAX-based systems. It’s comprised of hardware drivers, as well as MAC and scheduling functions. S-Cube is modular, allowing system vendors to reuse their existing software and expertise to differentiate their product offering, while still leveraging the performance and time to market advantages offered by Sequans. S-Cube can be easily integrated with high-level software applications using well defined C API. It operates under VxWorks and Linux, and is portable to other real-time operating systems. Highlights: Comprehensive software offering Benefits: A Comprehensive Software Offering S-Cube Characteristics: Deliverables Documentation Environment Operating System
RedMAX WiMAX Solutions Redline’s WiMAX-based RedMAX family of products is delivering the benefits of its third-generation OFDM technology and its core products to a larger customer base, including operators with last-mile access requirements for SOHO and residential customers. Redline’s strategic architecture roadmap drives success for
WiMAX network operators. With RedPATH, Redline is the first to articulate
a clear strategy that enables network operators to start generating
revenues from fixed and portable WiMAX solutions today, and evolve their
networks to meet the demands of mobile versions of the WiMAX standards as
they become available. RedPATH is a three phase approach that guides Redline’s WiMAX product development from supporting today’s fixed and portable services, to enabling carriers to expand and enhance their services, to delivering on the promise of full mobility. Strategic Operator Benefits: Establish immediate revenue with RedMAX RedPATH Phases : Phase 1 - Delivering on the promise of WiMAX today The first phase of RedPATH has placed Redline at the forefront of WiMAX products and deployments - enabling operators to seize a first to market advantage and generate revenues from RedMAX products today. Phase 2 - Personal Broadband Everywhere Redline is now executing on the second phase of RedPATH, making personal broadband service a reality by providing operators with the features and functionality for a WiMAX architecture that enhances fixed services and enables portable applications. Phase 3 - Mobilizing WiMAX personal broadband RedPATH guides operators in delivering complete WiMAX mobile service offerings by leveraging their RedMAX solutions and the RedPATH architecture.
Redline’s products give service providers the ability to simplify the profitable deployment of point-to-multipoint and point-to-point fixed, nomadic and mobile wireless broadband networks and revenue-generating services. For several years now, Redline has blazed the trail for all others to follow. Through a series of ‘world firsts’, Redline has firmly established itself as the broadband wireless industry’s innovation leader. Some of our accomplishments include: October 2003 - Redline introduced the first 802.16a-compliant
products – quickly catapulting them from a competitive player to the
industry leader; Whether you’re serving developed or emerging markets, Redline will help you capitalize on real-world opportunities to quickly and cost-effectively roll-out the services and applications that will drive your business forward.
Redline's RedMAX family of products includes the world’s first complete wireless broadband system to be WiMAX Forum CERTIFIED. Based upon the Intel PRO/Wireless 5116 Broadband Interface, RedMAX products enable carriers and service providers to cost effectively deliver rich broadband services to business and residential subscribers, including voice, video, and data traffic. The RedMAX family of WiMAX-based products shares Redline's Universal Architecture so that service providers and carriers can design and deploy reliable, high-throughput broadband wireless networks now and grow them into the future. This architecture is also designed to support the next generation IEEE 802.16e standard for mobility – the evolution that will form the data and network management core of mobile solutions for a host of new wireless devices, including laptop computers, handsets for gaming, and personal assistant devices. Proprietary Access and Backhaul Solutions Redline’s award-winning proprietary broadband fixed and mobile wireless access and backhaul products deliver an unmatched combination of range, capacity, security, and reliability, even in the most challenging environments. Redline's 'best-in-class' data rates and spectral efficiencies conserve valuable spectrum and reduce the costs of providing high-performance access. Redline’s technology advantage includes several patents necessary for building the OFDM-based wireless broadband systems that deliver our characteristically robust, extreme-distance/high-bandwidth performance. With built-in security encryption, and many other advantages, Redline products provide the reliability you need to grow your systems into the future. Redline solutions have been successfully deployed in over 20,000 installations in 75 countries across 6 continents. Redline products have the proven ability to enable the delivery of voice, data and video services that are the key to generating new and profitable revenue streams for service providers and carriers. RedMAX Management Suite Network and element management is a top priority for service providers and enterprise network operators looking to enhance their network management as they connect new customers and introduce voice, data and video services to current and prospective customers.
RedCare Services Redline is committed to the success of our customers and partners. Redline’s Professional Services Team offers a spectrum of courses and programs that empower our customers and partners with the knowledge they need to succeed. Redline’s scheduled product training provides comprehensive knowledge transfer for customers and partners through classroom training, hands-on activities, and lab work. Instructor-led courses on all Redline products are available on a regularly scheduled basis.
Global coverage Simultaneous voice and broadband data Portable Flexible Reliable Easy to use Direct connections to the satellite means there are never any compatibility with local telecoms networks. Secure Where can I buy a bgan terminal? Go to www.traderock.com and click on contact us These are the bgan terminals available from Traderock BGAN is accessible via a small, lightweight satellite terminal that is easy to carry, quick to set up and simple to use. And you can use the same device worldwide. There are BGAN devices for single users, for whom portability is the primary concern, and terminals that an entire team can share. Unsure which terminal is right for you? Compare all terminals It is ideal for live video applications or for teams to share in a temporary office environment, whatever the climatic conditions. Terminal overview Manufacturer: Thrane & Thrane
It is ideal for either single users using bandwidth-hungry applications, such as live video, or for small teams that need to set up a temporary office with high-speed connectivity to standard data applications. Terminal overview Manufacturer: Hughes Network Systems
It is also suitable for small teams that need to set up a temporary office. Terminal overview Manufacturer: Thrane & Thrane
Combined with the Nera WorldSet for voice telephony and text messages, it is ideal for single users, who need to set up a complete broadband mobile office in frequently changing locations. Terminal overview Manufacturer: Nera SatCom
Terminal overview Manufacturer: Addvalue Communications
It is ideal for single users seeking a cost-effective solution for 'always-on' remote corporate network access. Terminal overview Manufacturer: Hughes Network Systems
How it works? Bgan With BGAN there's no need for specialist technical knowledge. All that's required is a laptop PC, a BGAN satellite terminal and a telephone handset or headset. BGAN terminals Terminals can be connected quickly and easily to a laptop or multiple laptops, with users choosing wired or wireless connections, including Bluetooth or WLAN, depending on their choice of terminal. The smallest devices are designed to suit single users whose primary concern is portability. Larger terminals offer higher bandwidth and are particularly suitable for small teams who may need to establish temporary offices for longer periods. Terminals can be used indoors and outdoors, being robust enough to withstand challenging environments and extremes of temperature. BGAN LaunchPadTM Key features: Easy to use interface Who is Bgan for? BGAN is a powerful mobile communications solution for anyone who works or travels in locations where the local telecoms networks are unreliable or simply non-existent. It enables users to be just as productive away from the office as when they are back at base. It provides secure and reliable access to standard desktop applications at speeds to match terrestrial broadband services. What's more, you don't need any specialist technical expertise to set up or use BGAN. BGAN's superior performance, portability and ease of use make it a compelling proposition for journalists, military personnel, aid workers and other established users. But, BGAN also brings the benefits of mobile satellite communications to new users, such as civil engineers, consultants, project managers and sales executives. What does Bgan? BGAN enables users to access data applications at broadband speed and make phone calls at the same time - wherever they are on the planet. Data sökord wimax
Traderock.com All Rights Reserved 2001 - 2005 Home - Contact Us - About Us - Terms & Conditions - Notebook Store - Lcd Monitor Store http://www.traderock.com Traderock is a world distributor of wimax or WiMax wireless internet products, hardware, software and support. World distributor of Nera and Thrane bgan terminals, Inmarsat and Iridium service provider with airtime plans. contact Traderock for more info. Traderock supports its products WiMax wireless internet or Bgan satellite internet, which system is for me? Below is a explanation what wimax is and what bgan is! What is wimax or WiMax, wi-max and who supports it, who supply's it, who makes it? We at Traderock operates as sales agent for wimax systems. You can requst more info via us, pricing and system design suggestions and we are in daily contact to the leading manufacturers of these WiMax systems and hardware What Product To Choose of the WiMax manufacturers? Traderock represents Aperto Networks systems. were supported to stringent carrier requirements. Aperto Networks is committed to helping you maximize the return on your investment. Aperto offers technical support services to help ensure that your Aperto products operate efficiently, remain highly available, and benefit from the most
up-to-date software releases. large scale broadband wireless access systems. Aperto’s technical support team supports the systems represented by Traderock and is available to help with network configuration, implementation planning, problem resolution. Technical phone support is available, and offers quality technical support in accordance with generally recognized business practices and standards. When you need more info about Apertos WiMax solutions, contact Traderock at www.traderock.com go to CONTACT US page
WiMAX is defined as Worldwide Interoperability for Microwave Access by the WiMAX Forum, formed in April 2001 to promote conformance and interoperability of the IEEE 802.16 standard, officially known as WirelessMAN. The Forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL". The IEEE 802.16 Working Group on Broadband Wireless Access Standards, which was established by IEEE Standards Board in 1999, aims to prepare formal specifications for the global deployment of broadband Wireless Metropolitan Area Networks. The Workgroup is a unit of the IEEE 802 LAN/MAN Standards Committee. Although the 802.16 family of standards is officially called WirelessMAN, it has been dubbed “WiMAX” by an industry group called the The WiMAX Forum. The mission of the Forum is to promote and certify compatibility and interoperability of broadband wireless products. The acronym WiMAX expands to "Worldwide Interoperability for Microwave Access". The first 802.16 standard was approved in December 2001 and was followed by two amendments – 802.16a and 802.16c to address issues of radio spectrum and inter-operability, respectively. In September 2003, a revision project called 802.16REVd commenced aiming to align the standard with aspects of the European Telecommunications Standards Institute (ETSI) HIPERMAN standard as well as lay down conformance and test specifications. This project concluded in 2004 with the release of 802.16-2004 and the withdrawal of the earlier 802.16 documents including the a/b/c amendments. Amendments to the standard WiMAX forum for interoperability. Active amendments: 802.16f – Management Information Base 802.16g - Management Plane Procedures and Services
802.16h - Improved Coexistence Mechanisms for License-Exempt
Operation Certification WiMAX certification by this group is intended to guarantee compliance with the standard and interoperability with equipment from other manufacturers. The mission of the Forum is to promote and certify compatibility and interoperability of broadband wireless products. IEEE 802 refers to a family of IEEE standards about local area networks and metropolitan area networks. More specifically, the IEEE 802 standards are restricted to networks carrying variable-size packets. (By contrast, in cell-based networks data is transmitted in short, uniformly sized units called cells. Isochronous networks, where data is transmitted as a steady stream of octets, or groups of octets, at regular time intervals, are also out of the scope of this standard.) The number 802 was simply the next free number IEEE could assign, though "802" is sometimes associated with the date the first meeting was held - February 1980. The services and protocols specified in IEEE 802 map to the lower two layers (Data Link and Physical) of the seven-layer OSI networking reference model. In fact, IEEE 802 splits the OSI Data Link Layer into two sub-layers named Logical Link Control (LLC) and Media Access Control, so that the layers can be listed like this: Data link layer The IEEE 802 family of standards is maintained by the IEEE 802 LAN/MAN Standards Committee (LMSC). The most widely used standards are for the Ethernet family, Token Ring, Wireless LAN, Bridging and Virtual Bridged LANs. An individual Working Group provides the focus for each area. General The IEEE 802.16 Air Interface Standard is truly a state-of-the-art specification for fixed broadband wireless access systems employing a point-to-multipoint architecture. The initial version was developed with the goal of meeting the requirements of a vast array of deployment scenarios for BWA systems operating between 10 and 66 GHz. As a result, only a subset of the functionality is needed for typical deployments directed at specific markets. An amendment is almost finished to do the same for systems operating between 2 and 11 GHz. Additionally, the IEEE process stops short of providing conformance statements and test specifications. In order to ensure interoperability between vendors competing in the same market, the WiMAX technical working groups were created by the leaders in IEEE 802.16 technology. The 802.16 standard, amended this January by the IEEE to cover frequency bands in the range between 2 GHz and 11 GHz, specifies a metropolitan area networking protocol that will enable a wireless alternative for cable, DSL and T1 level services for last mile broadband access, as well as providing backhaul for 801.11 hotspots. The new 802.16a standard specifies a protocol that among other things supports low latency applications such as voice and video, provides broadband connectivity without requiring a direct line of sight between subscriber terminals and the base station (BTS) and will support hundreds if not thousands of subscribers from a single BTS. The standard will help accelerate the introduction of wireless broadband equipment into the marketplace, speeding up last-mile broadband deployment worldwide by enabling service providers to increase system performance and reliability while reducing their equipment costs and investment risks. Overview of the IEEE 802.16a Standard, WiMAX and the IEEE 802.16a PHY Layer, IEEE 802.16a MAC Layer, Differentiating the IEEE 802.16a and 802.11 Standards - WiFi versus WiMAX Scalability, The WiMAX Forum-Interoperability for 802.16 Compliant Systems, Traderock The Definitive Source for Wireless Technology and Business
decide APERTO Aperto Networks has been a leading contributor to IEEE 802.16 and ETSI HiperMAN standards, making sure that key technical features such as QoS and link adaptation enhancements were supported to stringent carrier requirements. Aperto
Networks was the first company to deliver IEEE 802.16-class systems in
2000. systems submitted for WiMAX certification. These efforts provide a solid base contributing to the ongoing development of WiMAX products now with outdoor fixed and indoor installed subscribers based on IEEE 802.16-2004 and evolving to
portable and mobile systems based on IEEE 802.16e in the future.
Pre-WiMAX broadband wireless providers have often been constrained by low-level networking and interoperability issues – limiting their service offerings to raw bandwidth and basic Internet access. These providers are realizing that while the new WiMAX standard helps ensure compatibility, it does not by itself result in an optimized solution that satisfies the whole range of operational and subscriber requirements. Aperto’s industry-leading PacketMAX™ infrastructure permits service provides to focus on their key business: offering competitive and profitable services. PacketMAX lets providers differentiate themselves from their competition by delivering the broadest array of services architected around a fully optimized WiMAX solution. Aperto’s unique quality of service (QoS) features to
delivering best-of-breed voice service offerings. For more information,
Contact Traderock at www.traderock.com . operational complexity by requiring rapid deployment of new cell sites to handle the increased traffic. Many large and midsize enterprises have sizable investments in TDM-based systems for private voice, and must continue to provide high-quality service. Leased-line costs can account for up to 30% of operational expenditures for mobile operators backhauling cell site traffic. PacketMAX technology can dramatically lower these costs by effectively emulating circuit-switched services over the lower-cost WiMAX link. For more information, Contact Traderock at www.traderock.com . service, and their cost sensitivity. Pack |