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·         ارائه دهنده و تأمين کنندة انواع تجهيزات تست Wimax در لايه سخت افزار و نرم افزار

Worldwide Interoperability for Microwave Access (WiMAX) is a wireless digital communication technology, based on the IEEE 802.16 and ETSI HiperMAN wireless metropolitan area network (MAN) standards. It can provide broadband wireless access (BWA) up to 50 km for fixed stations (e.g., desktop PCs), and 5 - 15 km for mobile stations (e.g., notebooks, computers, mobile phones, personal media players, and PDAs). The newest version of the IEEE 802.16 standard, dubbed 802.16m or Mobile WiMAX™ 2.0, could drive mobility up to 350 km/hr and push the data transfer speed up to 1 Gbps. Draft one of 802.16m is expected to deliver performance of over 300 Mbps in 4x4 MIMO configurations using 20-MHz channels and will likely be finalized in 2011.

As compared to a wireless technology like Wi-Fi, WiMAX is more immune to interference, allows more efficient use of bandwidth and is intended to allow higher data rates over longer distances. Because it operates on licensed spectrum, in addition to unlicensed frequencies, WiMAX provides a regulated environment and viable economic model for wireless carriers. These benefits, coupled with the technology's global support (e.g., ongoing worldwide deployments, spectrum allocation and standardization), make it the popular choice for quick and cost-effective delivery of super-fast broadband wireless access to underserved areas around the world.

The Technology

The fixed version of WiMAX, provides non-line-of-sight (NLOS) transmission to stationary devices using the 2-11 GHz frequencies. Higher frequencies require line of sight. Fixed WiMAX™ provides a high throughput broadband connection at speeds up to 75 Mbps over a distance as far as 30 miles. It is based on orthogonal frequency division multiplexing (OFDM), uses multiple pilot tones and supports modulations ranging from BPSK to 64 QAM. WiMAX systems can use variable bandwidths from 1 to 28 MHz with 256 subcarriers (192 data subcarriers) in either licensed or unlicensed spectrum. It can be used for a variety of applications including a"last mile" broadband connection, hotspot and cellular backhaul, and high-speed enterprise connectivity for businesses. The mobile version of WiMAX is an extension for mobile use in the 2-6 GHz band (see the Table). It allows WiMAX technology to be built into notebook computers and other mobile devices.

Table 1: Comparison of 802.16 wireless technologies.

Table 1: Comparison of 802.16 wireless technologies.

Helping to promote and facilitate deployment of broadband wireless networks based on the IEEE 802.16 standard is the industry-led organization known as the WiMAX Forum®. Formed in 2001, it is working toward this goal by certifying compatibility and interoperability of broadband wireless products. Certification takes place via the WiMAX Forum Certified testing and certification program at any one of five WiMAX Forum designated Certification Laboratories (WFDCLs). These labs include: AT4 Wireless in Spain and the United States, Telecommunications Technology Association in Korea, the China Academy of Telecommunications Research in China, and Advanced Data Technology Corporation in Taiwan.

Market Impact

While WiMAX technology is increasingly being embraced by countries worldwide, there is little doubt that the global economic downturn has had an impact on its deployment, in some cases slowing down or even delaying planned roll outs. Never the less, the Telecommunications Industry Association (TTI) projects a bright future for the technology with an annual growth rate that will increase 34 percent in the next three years alone (Figure 1).

Figure 1: This table, courtesy of Infonetics, highlights the growth in WiMAX equipment revenue through 2013. In the first quarter of 2009, EMEA (Europe, the Middle East, Africa) and Asia Pacific were the hotbeds of WiMAX activity, led by the Middle East, India and particularly Africa.

Figure 1: This table, courtesy of Infonetics, highlights the growth in WiMAX equipment revenue through 2013. In the first quarter of 2009, EMEA (Europe, the Middle East, Africa) and Asia Pacific were the hotbeds of WiMAX activity, led by the Middle East, India and particularly Africa.

WiMAX allows for infrastructure growth in underserved markets and is today considered the most cost-effective means of delivering secure and reliable bandwidth capable of supporting business critical, real-time applications to the enterprise, institutions and municipalities. It has proven itself on the global stage as a very effective last mile solution. In the United States though, licensed spectrum availability and equipment limitations have held up early WiMAX adoption. In fact, while there are currently 1.2+ million WiMAX subscribers worldwide, only about 11,000 of those are from the United States. Future growth in this market will be driven by wireless ISPs like Clearwire who intends to cover 120-million covered POPs in 80 markets with WiMAX by the end of 2010. Growth will also be driven by the availability of the 3.65-GHz spectrum that the FCC opened up this past year.

Although the potential for WiMAX in the U.S. market looks good, analysts believe that its real opportunity lies in emerging markets like India and Pakistan where the mobile phone has achieved greater than 50 percent penetration. Pakistan is currently among the first countries in the world to roll out a functional WiMAX service. India's planned rollout, expected some time next year, comes in response to a government requirement that 20 million broadband lines be in service by 2010. By 2012 alone, Springboard Research estimates that there will be 15.8-million WiMAX subscribers in India--close to 47 percent of total subscribers in the entire Asia Pacific region.

Perhaps some of the biggest planned deployments of WiMAX though will come from South Asia. According to Springboard Research, WiMAX services revenues in South Asia will grow from an estimated $58 million in 2007 to approximately $5.5 billion by 2012. Likewise, the estimated number of Foxed and Mobile WiMAX subscribers is expected to grow from 230,000 in 2007 to 33.9 million by 2012, with Mobile WiMAX services garnering the majority of revenues and subscribers.

Challenges Ahead

Despite its growing market approval, many factors conspire to make WiMAX system design challenging, including consumers, who today demand greater range, faster data rates and lower price-points. The 802.16 specification itself also poses challenges as it forces engineers to face many different system considerations in terms of RF requirements and architectures. Will the WiMAX system be deployed as Time Division Duplexing (TDD), Frequency Division Duplexing (FDD) or half-duplex FDD? Will it be based on a superheterodyne or direct-conversion RF architecture? Ineffectively addressing any one of these challenges threatens to hamper the proliferation of WiMAX and directly ties into the success of a WiMAX product. Some of the key engineering challenges that now exist include:

Challenge: Conformance Test

Interoperability issues commonly plague new technology at introduction. Conformance testing--whether Protocol Conformance Test (PCT), Network Conformance Test (NCT), Radiated Performance Test (RPT), or Radio Conformance Test (RCT)--plays a critical role in addressing this challenge. Not only does it help alleviate interoperability issues with other WiMAX equipment, it also ensures a positive end-user experience for consumers. NCT, for example, like PCT, RCT and RPT, it is a vital part of the WiMAX Forum certification process, testing conformance above the MAC layer to verify Internet Protocol layer signaling and messaging to and from the subscriber device. The availability of rigorous and efficient network test solutions is therefore a must for ensuring successful delivery of WiMAX technologies. The key, of course, is in having early access to conformance tests well in advance of commercial service.

Challenge: Orthogonal Frequency Division Multiple Access (OFDMA) Complexity

OFDMA is the digital modulation scheme employed by Mobile WiMAX. It uses OFDM technology in an innovative way to allocate the RF spectrum more effectively to more users. While this provides a very"granular" way to dissect bandwidth and charge for service, the standard and signal structure are extremely complex, creating a number of challenges. To begin with, as the expected and required services from WiMAX networks expand, ever greater demand will be placed on the processors in both the base and mobile stations. Additional processor strain will come from service providers using dynamically allocated subcarriers to allocate spectrum resources. And, while WiMAX's complex signal structure provides network operators with the flexibility they need, its associated cost puts enormous strain on the power amplifier (PA). Another challenge stems from WiMAX's utilization of non-traditional frequency re-use schemes which can create inter-cell interference, especially at the edges of the cell--just when a critical hand off needs to occur.

Challenge: Multiple-Input Multiple-Output (MIMO) Complexity

MIMO technology uses multiple antennas at both the transmitter and receiver to improve communication performance. Because it allows more bits/hertz to be transmitted in a given bandwidth, the technology improves spectral efficiency which, in turn, allows service providers to flexibly configure communication services and not just peak data rates. While MIMO offers increased signal robustness and capacity improvements, those benefits come at the cost of increased complexity for both the base station and the mobile station, placing large demands on processing power and antenna design.

Challenge: A Tight EVM Requirement

The 802.16 standard specifies that Error Vector Magnitude (EVM) be held to -31 dB, based on a 1% packet error rate. While this error rate, and a stringent receiver noise figure (7 dB maximum), help contribute to WiMAX's longer range, having to meet the EVM target has a number of implications. For example, all system blocks must be more linear and phase noise must be considerably better than in an 802.11 design, impacting the synthesizer and resulting in a longer settling time.

The PA is also impacted by the tight EVM requirement. In WiMAX systems, PAs must deliver more power, be more linear, and be able to handle a high Peak-To-Average Power Ratio (PAPR) - about 10 dB. Consequently, they consume more power and are less efficient. As a result, considerable effort must be made to develop higher efficiency, more linear PAs, especially for mobile applications where power consumption is critical.

Challenge: Receiver Performance

Nearly all WiMAX-enabled devices have two receivers and many are capable of MIMO reception in several frequency bands, commonly 2.3 GHz and 2.5 GHz. This added complexity challenges the designer to find space to adequately separate two receive antennas in the mobile station (MS) and thereby ensure signal recovery. Also, the need to differentiate the multiple data streams from the received signals places increased demands on the processor. WiMAX designs must therefore be thoroughly evaluated to ensure success in the conformance test process, and to verify the device will operate in the electromagnetically harsh and dynamic world in which it will work. Unfortunately, the wide range of wanted and unwanted signals, combined with the many nested feedback loops, make receiver design one of the most difficult challenges in the Mobile WiMAX cellular system. In fact, many consider this task one of the hardest in modern radio design, forcing designers to deal with everything from hardware performance and current consumption to memory and algorithm complexity constraints, while recovering some highly complex MIMO signals suffering from linear and non-linear distortions.

One of the specific challenges designers face results from the 802.16 specification's support of subchannelization. This means that instead of transmitting on all 192 data subcarriers, the base station (BS) can transmit on just a subset for a given user. Using the same amount of power over fewer carriers can result in greater range for the system, but because the subcarriers are spaced more closely together, tighter requirements exist for phase noise and timing jitter. Also, higher-performance synthesizers must be utilized.

Another challenge stems from the fact that WiMAX systems rely on multipath to provide NLOS coverage. The receivers used in the system are especially susceptible to phase noise, timing jitter and frequency mismatch/synchronization. This can create a challenging situation, given the already tight requirement for phase noise and jitter as specified in the standard. Improving the receiver's performance will help by also improving its range and data rate. If receiver performance is not adequately addressed, the range and data rate of the WiMAX system will be adversely impacted, as will the price.

Challenge: Spectral Efficiency/Latency

The overall complexity of Mobile WiMAX, along with its highly dynamic air interface requires a significant amount of optimization and management. Enabling the MS to make some decisions about engaging on the network, for example, can reduce latency and free the base station to manage more of the additional, complex tasks associated with network management. Also, the flexibility to dynamically allocate spectrum comes at the price of tremendous signaling complexity. As a result, the base station must manage the constantly changing data requirements of multiple antennas (for MIMO) and a wide range of mobile stations traveling at potentially high speeds. The signaling must be flexible enough to manage these issues. Further, the designers and service providers must be able to verify the performance of the network under realistic traffic conditions both before and after deployment.

Challenge: Integration with Legacy Systems

WiMAX networks must be able to integrate into existing cellular networks, providing seamless connectivity and user experience. Of course designing this into the network operation, base station and mobile station is a challenge task since WiMAX's modulation scheme is so very different from legacy systems.

Solutions

Agilent Technologies--as a member and active participant in the WiMAX Forum--is at the forefront of the emerging WiMAX market, first coming to market with a WiMAX-based solution in November 2004. With its innovative technology, unrivalled expertise and outstanding customer support, it has quickly established itself as a premier test and measurement leader in WiMAX. Bolstered by overwhelming market acceptance, and with its ability to understand the engineering challenges facing its customers in the WiMAX arena, Agilent is continuing to deliver a broad range of solutions to the market.

Agilent today offers the largest breadth of WiMAX design and test solutions spanning the entire lifecycle from R&D, design verification, pre-conformance, conformance, and manufacturing, through network deployment and service assurance--for Fixed and Mobile WiMAX, WiBro, and including support for Wave 2 and MIMO. These up-to-date, comprehensive solutions provide engineers the reliable, repeatable and consistent results they need to deploy WiMAX devices, networks and services.

Research and Development

WiMAX technology continues to evolve. Product development, however, cannot always wait for standards to stabilize. To aide in this process, Agilent delivers a complete, integrated R&D design and test environment including simulation, characterization and evaluation tools. As an example, Agilent's Advanced Design System (ADS) Wireless Design Library for Fixed and Mobile WiMAX, 89601A Series Vector Signal Analysis (VSA) software, PSA Series high-performance Spectrum analyzer and E6651A Mobile WiMAX Test Set offer analysis of component and system performance, thereby streamlining the design of WiMAX designs (see Figure 2).

Figure 2: Agilent's 89601A VSA software offers comprehensive WiMAX modulation analysis for evaluating and troubleshooting Fixed and Mobile WiMAX signals. It can measure the different WiMAX equipment profiles with bandwidths from 1.25 to 28 MHz, at frequencies from baseband to 11 GHz and beyond, and supports advanced WiMAX features such as sub-channelization.

Figure 2: Agilent's 89601A VSA software offers comprehensive WiMAX modulation analysis for evaluating and troubleshooting Fixed and Mobile WiMAX signals. It can measure the different WiMAX equipment profiles with bandwidths from 1.25 to 28 MHz, at frequencies from baseband to 11 GHz and beyond, and supports advanced WiMAX features such as sub-channelization.

Design Verification and Pre-Conformance

During design verification, engineers must validate that their designs conform to the WiMAX standard. To ensure that base stations and subscriber stations conform to the various regulations established in different countries, both the WiMAX receiver and transmitter must be tested. Here, the ability to generate, detect, demodulate and troubleshoot WiMAX signals is critical. Agilent Signal Studio for 802.16 WiMAX software allows engineers to quickly and easily configure Fixed and Mobile WiMAX-compliant waveforms for both component and receiver design verification and testing. The Agilent ESG vector signal generator helps simplify this process by delivering calibrated WiMAX test signals (see Figure 3). When used in a connected solution with ADS and VSA, designers have a virtual prototyping solution. Agilent's PSA Series high-performance spectrum analyzer aids in this process as well, measuring and monitoring complex WiMAX signals. In addition, the E6651A Mobile WiMAX Test Set, MXA Spectrum Analyzer and WiMAX Design Verification Test System support engineers validating WiMAX designs. Together, these tools offer a compelling solution for designing and testing WiMAX components, subsystems and systems.

Figure 3: Agilent's ESG vector signal generator incorporates a broad array of capabilities for evaluating the performance of nearly all current and proposed air interface standards such as WiMAX. Together with Signal Studio software it provides pre-configured and user-configurable WiMAX waveforms that developers can use to stimulate their WiMAX components at frequencies to 6 GHz

Figure 3: Agilent's ESG vector signal generator incorporates a broad array of capabilities for evaluating the performance of nearly all current and proposed air interface standards such as WiMAX. Together with Signal Studio software it provides pre-configured and user-configurable WiMAX waveforms that developers can use to stimulate their WiMAX components at frequencies to 6 GHz.

Designers must also be able to test the WiMAX Forum's Wave 2 system profiles--a task crucial to the successful deployment of Mobile WiMAX products. Support for these profiles in Agilent's VSA, Signal Studio and Mobile WiMAX Test Set solutions enables accurate and cost-effective testing of MIMO and other Wave 2 Profile functionality in Mobile WiMAX products. Agilent's VSA software and Signal Studio support Matrix A and Matrix B signals for downlink, uplink collaborative MIMO and creation of HARQ bursts, and uplink sounding zones. Signal Studio also provides STC/MIMO support, as well as features like uplink sounding to support beamforming and MIMO fading embedded in a waveform.  The Mobile WiMAX Test Set features cross-channel metrics and MIMO channel measurements which allow the engineer to characterize transmitted signals either directly from the Tx antenna or after fading.

Conformance Test

Conformance test ensures both interoperability of WiMAX equipment and a positive end-user experience. Agilent's suite of WiMAX test solutions, built on proven platforms, allow the engineer to approach interoperability and conformance testing with very high confidence. For RCT, the latest industry-required measurements are found in the AT4 Wireless MINT RCT System. AT4 Wireless is a WiMAX Forum designated certification laboratory. MINT T2110 covers the transmitter and receiver test cases for base stations and subscriber stations according to the WiMAX CS 103 001 test specification.

Agilent's N6434A Network Conformance Test system provides a validated test regime for TTCN-3 network conformance testing. It can be used standalone or NCT test cases can be added to existing PCT solutions, since they use the same test infrastructure. This functionality offers users increased coverage of the comprehensive WiMAX certification test program.

Agilent also now offers the N6430A family of IEEE 802.16-2004/Cor2 D3 PCT solution based on the Agilent E6651A Mobile WiMAX Test Set. The N6430A product family provides protocol designers with a TTCN-3 scripting interface that supports script development for design needs, as well as the ability to run the ETSI-validated protocol test cases in accordance with WiMAX Forum PCT certification requirements. This allows equipment developers and test houses to verify that their implementation conforms to WiMAX standards.

The WiMAX Forum's product-certification process is designed to ensure WiMAX-enabled products perform as expected and provide the customer with a reliable communication experience. One portion of this process is the RPT which measures transmit power and receive sensitivity of WiMAX devices (www.wimaxrpt.com). The Agilent E6651A Mobile WiMAX Test Set is used in RPT systems like the AMS-8500 RPT system from ETS-Lindgren. The E6651A's combined RF, protocol and functional test capabilities help engineers make the required RPT measurements and assure customers of the quality of their WiMAX-enabled products.

Manufacturing

Engineers developing WiMAX receivers and components require signal-generation and analysis tools to verify compliance with still-evolving WiMAX conformance test requirements. Agilent's N8300A Wireless Networking Test Set provides a complete one-box transmitter and receiver test solution for Mobile and Fixed WiMAX devices and modules to increase manufacturing test throughput (see Figure 4). The MXG Vector Signal Generator, with Signal Studio for WiMAX, provides the standards-based signals needed for the evaluation, while the Agilent MXA Signal Analyzer allows the engineer to analyze the WiMAX signals. Additional products, such as the MXZ-1000 WiMAX Manufacturing Test System, can also aide in this process. Together these solutions provide today's engineers with a complete and fast WiMAX test system for design and production environments.

Figure 4 - Agilent Technologies' One-Box Wireless Networking Test Set provides for the testing of high volumes of Mobile WiMAX devices that require a standard-compliant Mobile WiMAX physical layer test tool

Figure 4: Agilent Technologies' One-Box Wireless Networking Test Set provides for the testing of high volumes of Mobile WiMAX devices that require a standard-compliant Mobile WiMAX physical layer test tool.

Network Deployment and Service Assurance

Critical to the growth of a wireless provider's customer base and revenue is the successful installation, optimization and troubleshooting of its WiMAX network. Having the right test and measurement tools in place to accomplish these goals, therefore, is absolutely essential. As a leading provider of WiMAX design and test solutions, including network deployment and service assurance tools, Agilent is dedicated to helping engineers address the challenges associated with this emerging technology by providing the right solution at the right time. The Agilent E6474A Wireless Network Optimization Platform, for example, allows early verification of network deployments. This enables wireless service providers and network equipment manufacturers to proactively address challenges with wireless voice and data networks through quick and accurate problem identification. Another tool, the J7910A Signaling Analyzer WiMAX Solution, is a high-performance solution for system verification, troubleshooting and RAN optimization. It enables distributed call trace, performance measurements and drill-down problem isolation (see Figure 5).

Figure 5 - Agilent's signaling analyzer, the J7910A, WiMAX solution offers a breakthrough in troubleshooting methodology with a high-performance, client server, multi-user architecture, and seamless drill down from statistics and call traces, to messages and decodes.

Figure 5: Agilent's signaling analyzer, the J7910A, WiMAX solution offers a breakthrough in troubleshooting methodology with a high-performance, client server, multi-user architecture, and seamless drill down from statistics and call traces, to messages and decodes.

Conclusion

WiMAX is intended to make point-to-multipoint broadband network access widely available, without the expense and distance limitations associated with wired options. Critical to this emerging technology and the overall success of WiMAX applications is the ability to generate, detect, demodulate, and troubleshoot PHY layer signals. As a leader in WiMAX test and measurement, Agilent Technologies has, and continues to deliver a broad range of solutions for addressing the unique challenges brought about by the Fixed and Mobile WiMAX specifications. Agilent was first to market with R&D-based WiMAX solutions and is an active member of the WiMAX Forum. Agilent's measurement solutions are currently used in WiMAX certification testing.

Agilent's innovative solutions play a critical role in helping to grow the WiMAX market, while its technical expertise enables it to stay ahead of any engineering challenges that may arise. With its ongoing commitment to supporting WiMAX, Agilent will continue to develop and introduce solutions as the market grows and the technology advances.

Agilent in WiMAX

Agilent Technologies is an active member in WiMAX Forum (www.wimaxforum.org), and a world leader in test and measurement solutions. Agilent continues to be at the forefront of this emerging market, offering WiMAX design and test solutions that span the entire technology lifecycle--R&D, design verification and pre-conformance, conformance, manufacturing through network deployment, and service assurance. Information about Agilent's WiMAX design and test solutions can be found at www.agilent.com/find/wimax.

 

About Agilent Technologies

Agilent Technologies Inc. (NYSE: A) is the world's premier measurement company and a technology leader in communications, electronics, life sciences and chemical analysis. The company's 18,000 employees serve customers in more than 110 countries. Agilent had net revenues of $5.8 billion in fiscal 2008. Information about Agilent is available on the Web at www.agilent.com.

 

"WiMAX,""Fixed WiMAX,""Mobile WiMAX,""WiMAX Forum," the WiMAX Forum logo,"WiMAX Forum Certified," and the WiMAX Forum Certified logo are trademarks of the WiMAX Forum. All other trademarks are the properties of their respective owners.

 

 

The world’s premier measurement company When measurement matters, engineers, scientists, manufacturers, businesses, researchers, and government agencies rely on Agilent tools and solutions. From home entertainment to homeland security, from food safety to network reliability, and from communicating wirelessly to discovering the genetic basis of disease, Agilent provides the measurement capabilities that make our world more productive and a safer, healthier, more enjoyable place to live.

No other company offers the breadth and depth of measurement tools and expertise to meet the world’s critical requirements for electronic and bio-analytical measurement. With our long track record and our exclusive focus on measurement, Agilent is the global industry leader—by virtually any measure.

 

Single acquisition combined Fixed WiMAX measurement is a breakthrough solution for high-volume, high-throughput production manufacturing test. It allows manufacturers to make measurements much faster than traditional measurements. It is a SCPI-based measurement application with varied parameter setup and simple user interface.

The N9074A application is designed for time-critical tests on the production line, supports transmit power, transmit output spectrum, and modulation accuracy measurements for 802.16d uplink and downlink signals, and also supports frequency hopping signals. The high dynamic range of the Agilent X-Series signal analyzers (MXA/EXA) ensures that the measurements remain as accurate as possible.

35670A 2 or 4 channel FFT Dynamic Signal Analyzer, DC-102.4 kHz

The Agilent 35670A is a versatile FFT analyzer with built in source for general spectrum and network analysis, and for octave, order, and correlation analysis. Rugged and portable, it is ideal for field work, yet it has the performance and functionality required for demanding R&D applications.

The built in source with optional analysis features optimize the instrument for analyzing and troubleshooting noise, vibration and acoustic problems, evaluating and solving rotating machinery problems, and characterizing control systems parameters.

  • 102.4 kHz at 1 channel, 51.2 kHz at 2 channel, 25.6 kHz at 4 channel
  • 100, 200, 400, 800 and 1600 lines of resolution
  • 90 dB dynamic range, 130 dB in swept-sine mode
  • Source: Random, Burst random, Periodic chirp, Burst chirp, Pink noise, Sine, Arbitrary waveform
  • Measurements: Linear, Cross, and Power Spectrum, Power Spectral Density, Frequency Response, Coherence, THD, harmonic power, Time Waveform, Auto-correlation, Cross-Correlation, Histogram, PDF, CDF
  • Octave analysis with triggered waterfall display
  • Tachometer input and order tracking with orbit diagram
  • Built-in 3.5-inch floppy disk

·         We can’t predict the future, but Agilent can help you shape it with our future-ready test assets. The X-Series is an evolutionary approach to signal analysis that spans instrumentation, measurements and software.

·         Instruments
X-Series signal analyzers are ready to evolve as technology changes. With upgradeable CPU, memory, disk drives, and I/O ports, you can keep your test assets current and extend instrument longevity. Adding functionality or applications is simply a license-key upgrades, and with proven X-Series reliability you’ll enhance asset uptime.

·         PXA
The high-performance PXA is the evolutionary replacement for your current performance signal or spectrum analyzer.

·         MXA
The mid-performance MXA is the ultimate accelerator as your products move from design to manufacturing to the marketplace.

·         EXA
The economy-class EXA is the fastest way to maximize throughput on the production line.

·         CXA
The low-cost CXA is a versatile tool for essential signal characterization.

·         Measurements
Proven algorithms, 100% code-compatibility, and a common UI across the X-Series create a consistent measurement framework for signal analysis that ensures repeatable results and measurement integrity so you can leverage your test system software through all phases of product development. You can further extend your test assets by transporting applications across multiple X-Series analyzers. Learn one X-Series analyzer, know them all.

·         Applications & Software
All X-Series signal analyzers share a common library of more than 20 advanced measurement applications and with the open Windows® operating system you can run applications such as MATLAB or 89600 VSA software. The industry-leading VSA software supports over 70 signal standards and modulation types, with a first-to-market track record that can accelerate your own designs to market.

Signal and Spectrum Analyzers > X-Series Signal Analyzers (PXA, MXA, EXA, CXA)

·       N9030A PXA Signal Analyzer

·       N9000A CXA Signal Analyzer

·       N9020A MXA Signal Analyzer

·       N9010A EXA Signal Analyzer

 

WiMAX™ Test

·         Agilent resources for WiMAX™ test for Mobile WiMAX, Fixed WiMAX and WiBRO. Resources include WiMAX test equipment, WiMAX design solutions, application notes, webcasts and more.

As a world leader in test and measurement solutions, and as a member and active participant in the WiMAX Forum®, Agilent Technologies continues to be at the forefront of the WiMAX market. Agilent offers the largest breadth of WiMAX design and test solutions spanning the entire lifecycle from R&D, design verification and pre-conformance, conformance, manufacturing, through network deployment and service assurance – for Fixed and Mobile WiMAX™, WiBro, and including support for Wave 2 and MIMO.

·         Our engineers, experts in test, have dedicated themselves to understanding the intricacies of this evolving standard to provide you with the solutions you need, when you need them. So, as you take WiMAX forward, Agilent will continue to clear the way.

 

·         Fading WiMAXT testing with Agilent's E6651A and an Elektrobit Propsim C8

 

·         Fading WiMAX™ testing with Agilents E6651A and an Azimuth ACE

 

·         Measuring and Troubleshooting Digitally Modulated Signal in the MXA Signal Analyzer (AN 1585)

 

 

 

 

 

Manufacturing WiMAX™ Test Equipment

Related Products

  • N8300A Wireless Networking Test SetN8300A Wireless Networking Test Set
    The N8300A is a one-box RF parametric test set targeting manufacturing and design engineers who need a standard-compliant physical layer (PHY) test tool for mobile and/or fixed WiMAX™ Tx and Rx applications.
  • N9075A ImageN9075A 802.16 OFDMA Measurement Application
    The N9075A 802.16 OFDMA measurement application for the X-Series (MXA/EXA) signal analyzers provides one-button standard-based pass/fail testing of IEEEE802.16-2005 signals.
  • Signal Studio for 802.16 WiMAXN7615B Signal Studio for 802.16 WiMAX™
    Use Signal Studio for 802.16 WiMAX to create waveforms for use with the N5182A MXG, N5162A MXG ATE, E4438C ESG and E8267D PSG vector signal generators.

 

 

Agilent Technologies Debuts WiMAX(tm) Optimization Solution for 802.16e-2005

Agilent Technologies Inc. (NYSE: A) today announced its WiMAX Optimization Solution for IEEE 802.16e-2005. This breakthrough drive-testing capability for its network optimization test platform enables WiMAX network equipment manufacturers and service providers to authenticate the actual subscriber experience in real-world WiMAX environments. This capability allows manufacturers to develop faster and more reliable WiMAX-enabled products.

The Agilent WiMAX Optimization Solution is the latest version of the new 4G air interface technology, enhanced for ultra high-speed packet data transfer with Quality of Service (QoS). It enables 4G wireless communications systems to deliver business-critical data services such as video telephony, video conferencing and video streaming downloads, with network-enforced QoS to guarantee the performance of the service.

"With WiMAX environments that operate in IEEE 802.16e-2005, manufacturers and service providers are facing complex measurement considerations compared with traditional 2G and 3G iDEN/CDMA networks," said David Churchill, vice president and general manager, Agilent's Network and Digital Solutions business unit. "Our portfolio provides the ability to test devices, signals and services from the early stages of development through deployment. This helps design and manufacturing engineers do their jobs faster and more efficiently than ever before."

The Agilent Wireless Network Optimization Platform

The Agilent wireless network optimization test platform for RF engineering and operation teams enables WiMAX test for IEEE 802.16e-2005 drive-test capabilities through a scalable, integrated, air interface measurement system. This software enhancement helps network equipment manufacturers and service providers identify interference issues and neighboring cell site configuration problems, enabling the smooth introduction and ongoing maintenance of WiMAX capabilities that operate in IEEE 802.16e-2005 wireless broadband data networks.

This platform is used to support integration and maintenance of 2G, 3G and 4G networks, obtain comprehensive call-performance statistics and quantify the end-user's experience for both voice and data. Agilent now offers service providers the most concurrent measurements in the industry, enabling unparalleled efficiency in air interface testing and troubleshooting. Agilent also offers an unmatched portfolio of WiMAX test solutions for R&D, verification and manufacturing.

Agilent Technologies enhances OFDMA capability for 802.16e mobile WiMAX applications

Agilent Technologies Inc. (NYSE: A) today announced enhancements to its 802.16e OFDMA (orthogonal frequency division multiplexing access) capability for mobile WiMAX applications. WiMAX is intended to make point-to-multipoint broadband network access widely available without the expense and installation limitations associated with wired options.

Agilent 89601A Option B7Y IEEE-802.16e OFDMA modulation analysis provides an advanced tool set for unfolding the intricate physical layer structure of mobile WiMAX signals. Its ability to analyze frames, zones and individual data bursts in detail makes it ideally suited for RF, IF and baseband engineers designing components and transceivers for 802.16e-compliant base stations and customer premises equipment (CPE).

Wireless metropolitan area network (MAN) signals, like WiMAX, are complex to troubleshoot, especially given the many pieces of the 802.16e physical layer. New enhancements to Option B7Y help simplify the analysis complexity of OFDMA signals. They include a special PRBS status indicator (PSI), detailed analysis at the data burst level, and data-burst-coordinated result color coding.

With Agilent's unique PSI, the zone permutation formula does not have to be correct for successful demodulation. In most cases Option B7Y will still demodulate the signal and then show the PRBS seed that generated the PRBS error.

Data-burst-coordinated color coding and coupled markers speed the process of tracking an error from the constellation through multiple EVM, PVT and spectrum measurements to the zone map. Option B7Y's six displays save the engineer time in switching between measurements.

The 89601A Vector Signal Analysis Software offers a wide range of troubleshooting tools for analyzing digital satellite video and other satellite signals, LMDS, 802.11b wireless LAN, 802.11a and HiperLAN/2 OFDM wireless LAN, Bluetooth(r) systems and more. Its flexible demodulation option is particularly well suited for testing proprietary single-carrier signaling formats. The analyzer features innovative error analysis tools and user-adaptive equalization to help the engineer identify the existence and cause of problems.

Agilent Technologies Offers WiMAX eSeminar and Tool Kit CD Free-of-Charge, Strengthening its Leadership in the WiMAX Arena

Agilent Technologies Inc. (NYSE: A) today announced the release of an on-demand eSeminar and Tool Kit CD for fixed 802.16-2004 and mobile 802.16e-2005 WiMAX applications. Further complementing Agilent's broad offering of WiMAX solutions, these resources are designed to help today's engineers more efficiently and effectively test and verify WiMAX designs and radios.

Agilent's "Testing Mobile WiMAX Radios from Pre-Certification Through Manufacturing" eSeminar is specifically targeted at WiMAX chipset developers and reference designers and integrators. Participants learn about the radio tests that can be tackled using a standard Vector Signal Analyzer and Generator, including those specified in the WiMAX Radio Conformance Test (RCT) document. The eSeminar also provides insight into the test objectives and configuration needed to evaluate devices during design validation, integration and initial manufacturing.

The Agilent WiMAX Tool Kit CD gives engineers information needed to simulate, troubleshoot and verify designs for 802.16-2004 and 802.16 OFDMA applications.

"Agilent stands as a true innovator and leader in standard-compliant 802.16 design and test tools, providing solutions for testing fixed and mobile WiMAX throughout the entire WiMAX lifecycle," said Guy Sene, vice president and general manager of Agilent's Signal Analysis Division. "We were first to provide standard-compliant 802.16 design and test tools for fixed and mobile WiMAX applications, and the first to enable RF and baseband engineers working at the 802.16-1004 PHY layer to create, analyze and troubleshoot signals. That innovation and leadership continues today as we work to provide engineers with the resources they need to efficiently and effectively create the next generation of communication based on WiMAX."

 

 

 

 

 

 

 

Agilent Technologies Obtains Principal Member Status with WiMAX Forum(r)

Agilent Technologies Inc. (NYSE: A) today announced that it has received principal member status with the WiMAX Forum. Agilent, a market leader in test equipment, has been actively involved in the Forum since 2004, introducing test equipment to support WiMAX(tm) technology.

Agilent was first to provide standard-compliant 802.16 design and test tools and solutions for fixed and mobile 802.16 applications, and first to enable RF and baseband engineers working at the 802.16-2004 PHY layer to create, analyze and troubleshoot signals. Agilent's principal status will further strengthen its ability to deliver standards-based WiMAX test solutions, contributing to the delivery of cost-effective, high-quality products into the marketplace.

"Inclusion in the WiMAX Forum as a principal member is yet another opportunity for Agilent to continue to demonstrate leadership and ongoing commitment to enabling the emergence of WiMAX as a truly global technology," said Ron Nersesian, vice president of Agilent's Wireless Business Unit. "We have been actively engaged with the WiMAX Forum and have introduced innovative test solutions for this market, ensuring today's engineers have the tools they need to create the next generation of communication based on the WiMAX of tomorrow."

As a world leader in test and measurement solutions, Agilent continues to be at the forefront of this emerging market, offering WiMAX design and test solutions that span the entire technology lifecycle -- R&D, design verification and pre-conformance, conformance, and manufacturing. Thanks to their reliability, repeatability and consistency, these solutions provide engineers with a level of performance and functionality not currently available with competing solutions.

bout WiMAX Forum

The WiMAX Forum is an industry-led, nonprofit corporation formed to help promote and certify the compatibility and interoperability of broadband wireless products using the IEEE 802.16 and ETSI HiperMAN wireless MAN specifications. The WiMAX Forum's goal is to accelerate the introduction of these devices into the marketplace. WiMAX Forum Certified(tm) products will be fully interoperable and support Metropolitan Broadband Fixed, Portable and Mobile Applications. For more information about the WiMAX Forum and its activities

 

 

 

 

 

 

 

 

 

 

Agilent Technologies Announces Demonstration of WiMAX(tm) Measurement Solutions

gilent Technologies Inc. (NYSE: A) today announced that its mobile WiMAX (IEEE 802.16e-2005) measurement solutions were used by participants at the WiMAX Forum(r)'s recent third, public Mobile WiMAX PlugFest, an interoperability showcase hosted by AT4 Wireless and ETSI in Sophia Antipolis, France. Agilent's mobile WiMAX solutions include the Agilent MXG, Signal Studio, MXA, 89601A Vector Signal Analyzer (VSA) software, and Mobile WiMAX Test Set. Featuring exceptional performance and functionality, these solutions provided PlugFest participants with PHY, MAC and functional test capabilities not currently available with competing solutions.

Bringing a new level of innovative test features and performance to the developer, Agilent's mobile WiMAX measurement solutions provide engineers with the necessary tools to perform accurate, cost-effective and fast signal analysis, signal generation, protocol testing, and end-to-end functional test in the lab.

Agilent's broad range of mobile WiMAX measurement solutions will next be showcased June 18-22 at the WiMAX Forum's plenary session in Madrid, Spain. On display will be the Agilent MXG, MXA, 89601A VSA software, and E6651A Mobile WiMAX Test Set, plus the latest enhancements to Agilent's Mobile WiMAX Signal Studio (N7615B) tools for mobile WiMAX. New features to be added to Signal Studio to support signal generation for the Wave 2 system profiles include: Matrix A and Matrix B signals for downlink, MIMO fading embedded in a waveform, uplink collaborative MIMO, creation of HARQ bursts and uplink sounding zones.

Agilent engineers will be on hand in Madrid to demonstrate how Agilent test tools can be used to verify performance of mobile WiMAX devices. In contrast to other solutions often used just to verify that a signal is present when a problem is found, Agilent's solutions can also be used for troubleshooting.

In an additional show of support for the development of WiMAX and mobile WiMAX standards, Agilent is sponsoring the WiMAX Forum Certification Working Group - Technical Working Group (CWG-TWG) meeting, which will take place July 11-14 in San Francisco.

"The exceptional levels of performance demonstrated by our WiMAX measurement solutions exemplifies our commitment to develop solutions that foster a successful WiMAX marketplace," said Agilent's Guy Sene, vice president of marketing, Wireless Business Unit, and vice president and general manager, Signal Analysis Division. "That commitment is displayed yet again through our sponsorship of and active participation in technical working-group meetings for the WiMAX Forum."

 

 

 

 

 

 

Agilent Technologies announces Mobile WiMAX and 802.11n design exploration libraries to speed wireless communications product development

Agilent Technologies Inc. (NYSE: A) today announced two new design exploration libraries for use with its Advanced Design System (ADS) EDA software. The Mobile WiMAX library helps wireless systems designers and verification engineers speed development of communications products for broadband wireless access (BWA) applications. The 802.11n library helps system design and verification engineers speed development of the latest high-speed WLAN products.

"Catching and eliminating system integration problems early can save hundreds of thousands of dollars in a typical design cycle," said Afshin Amini, product marketing manager with Agilent's EEsof EDA division. "With these new design exploration libraries, designers can identify DSP and analog/RF integration problems early and avoid over-specification."

The IEEE 802.16e standard, generally referred to as Mobile WiMAX, specifies air interfaces for BWA systems and utilizes roaming and handoff to enable laptop and mobile phone operation. The standard is expected to energize the BWA industry and open opportunities for systems in applications where these types of wireless systems were previously cost-prohibitive.

The 802.11n design exploration library is based on the latest proposal from the Enhanced Wireless Consortium (EWC), a coalition formed to accelerate the IEEE 802.11n standard development process and promote a technology specification for next-generation wireless local area networking (WLAN) products.

Both libraries provide preconfigured simulation setups, signal sources and fully coded BER analysis for simulation of the circuitry used in mobile BWA and 802.11n-based designs. They help speed the development cycle by allowing system designers to analyze a system's performance before all of its components are designed. The Mobile WiMAX library works within the ADS environment and with the Agilent Ptolemy simulator to streamline design and verification of OFDMA- (Orthogonal Frequency Division Multiple Access) based, last-mile service designs. The 802.11n library works within the ADS environment and with the Agilent Ptolemy simulator to streamline design and verification of MIMO- (multiple input-multiple output) based WLAN designs.

Both libraries also can be imported into Agilent RF Design Environment (RFDE), allowing RFIC designers to access Mobile WiMAX and 802.11n test benches within the Cadence Virtuoso custom design platform through links developed as part of the ongoing alliance between Agilent and Cadence Design Systems.

About Agilent ADS, Ptolemy and RFDE

Agilent ADS offers a complete set of front-to-back simulation and layout tools and instrument links for RF and microwave IC design in a single, integrated design flow. Agilent Ptolemy is a system-level simulation and design environment within ADS based on a hybrid of data flow and timed synchronous technologies that facililitates analog/RF and digital signal processing co-design. Agilent RFDE tightly integrates RF simulation technologies from Agilent ADS into Cadence's analog and mixed-signal design flow to aid in large-scale RF/mixed-signal IC design.

Agilent Technologies and AT4 Wireless win joint WiMAX conformance test systems contract in Taiwan

Agilent Technologies Inc. (NYSE: A) and AT4 Wireless (formerly known as CETECOM Spain) announced today that Agilent's Measurement Systems Division and Wireless Business Unit have won a contract valued at more than US$1 million jointly with AT4 Wireless for fixed and mobile WiMAX conformance test and regulatory test systems with Telecom Technology Center (TTC) Taiwan.

Agilent's Measurement Systems Division will provide the regulatory test system, project management, installation and training services; AT4 Wireless' Systems Division will provide the fixed and mobile WiMAX radio and protocol conformance test system based on their MINT T2110 architecture. AT4 Wireless' Labs Division will train TTC employees on test procedures for WiMAX Forum Certified(tm) products.

"This is a further step in the successful rollout of WiMAX in the Asia region and our close relationship with AT4 Wireless," said Amir Aghdaei, vice president and general manager of Agilent's Measurement Systems Division. "With our strong local systems integration and support presence, and our working closely with AT4 Wireless, we were able to meet the customer's needs for a complete WiMAX RF and protocol conformance test solution with the lowest risk."

The AT4 Wireless MINT T2110 Conformance Test System is the official radio conformance test system for WiMAX certification of IEEE 802.16-2004 and ETSI HiperMAN-based devices. Combining AT4 Systems technology with Agilent's industry-leading E4440A Series PSA high-performance signal analyzer, 89601 Option B7S/B7Y software and E4438C ESG vector signal generator, MINT T2110 covers the transmitter and receiver test cases for base stations and subscriber stations according to the WiMAX CS 103 001 test specification.

"We have enjoyed a good relationship with Agilent for many years, starting in Bluetooth, and more recently the 802.16 WiMAX communication technologies," said Luis Fernando Martinez, general director of AT4 Wireless. "WiMAX represents an excellent new area of mutual cooperation between our organizations." Guy Sene, vice president, Signal Analysis Division, added, "By working with AT4 Wireless on 802.16 RF conformance test systems, we have been able to focus our energies and resources on developing and continuously enhancing our industry-leading measurement and analysis tools for WiMAX."

 

 

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