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The Path To 4G Will Take Many Turns A race is going on right now and it's a heated one. It's a race to the next generation of untethered communications—4G mobile broadband wireless. The prize for reaching the finish line first or even finishing at all could be huge. Yet that finish line keeps moving, as the fourth generation (4G) isn't yet fully defined. In fact, spectrum won't be allocated until 2007. Standards probably won't be complete until the year after that. Right now, though, many teams across the globe are... — Noah Schmitz March 2005 [Column] Interface Technology Must Match New Data Services In today's wireless industry, operators are facing declining voice revenues. As a result, they're actively seeking compelling data services to maintain and/or increase the Average Revenue Per User (ARPU). The devices that contribute to data-services revenue are being heavily pushed by operators. Examples include camera phones for MMS and phones with QWERTY keyboards for e-mail. This emphasis on data services has led to the rapid introduction of devices that are optimized for such... — Bill Loller March 2005 [News] RF Power Amplifiers Come From Common Stuff Most modern RF power amplifiers are built from legacy analog circuits. Typically, such circuits are produced in multi-component modules and in costly, low-volume semiconductor processes like Gallium Arsenide (GaAs). Yet ParkerVision, Inc. recently extended its Direct2Data digital RF transceiver technology to overcome a significant hurdle. It can now produce ultra-efficient, low-cost RF power amplifiers in common silicon semiconductors.... — Lisa Maliniak March 2005 [News] Linux-Based UMTS/EDGE Reference Design Debuts According to industry research, Linux is ready to secure a significant share of the smart-phone market segment in the next design cycle. For designers who wish to get a jump on development for the growing UMTS/EDGE smart-phone market, there's now a smart-phone reference design based on Linux. Developed by Infineon Technologies, Samsung Electronics, Trolltech, and Emuzed, the reference platform showcases many advanced 3G and multimedia... — Lisa Maliniak March 2005 [News] OBSAI Specifications Become Freely Available The Open Base Station Architecture Initiative (OBSAI) has made the first versions of its open base-station-interface specification documents available to non-members. The specifications are relevant to the interfaces between the transport, control, baseband-processing, and radio functional modules. They were developed by OBSAI's 115 member companies. The companies' activities span modules, components, and base stations. These... — Lisa Maliniak March 2005 [News] Collaborators Get A Fix On E-GPS For many OEMs in the wireless-network and mobile-device spaces, Enhanced Global Positioning Systems (E-GPS) are high on the wish list. E-GPS addresses the problem of providing quality timing assistance to GPS-enabled devices in asynchronous networks, such as GSM and W-CDMA. The lack of a common synchronization source means that devices can take longer to provide a location reading. E-GPS brings together two independent positioning... — Lisa Maliniak February 2005 [News] WiMAX Sets Its Sights On Fixed Networks Third-generation network service providers are eager to augment their existing wireless offerings with WiMAX technology. This step is vital to the evolution from fixed broadband wireless to the widespread availability of mobile broadband wireless. WiMAX, which is based on the IEEE 802.16 standard, complements existing 3G networks. It creates a converged service offering that users can access using a broad range of devices on a wide variety of networks. Through a strategic... — Lisa Maliniak February 2005 [Column] Can Access And Privacy Survive Next-Generation Systems? The mechanistic world view, taking the play of physical particles as ultimate reality, found its expression in a civilization which glorifies physical technology that has led eventually to the catastrophes of our time. Possibly the model of the world as a great organization can help to reinforce the sense of reverence for the living which we have almost lost in the last sanguinary decades of human history.—Ludwig von Bertalanffy At first, access and privacy seem to be... — Ryan Olson February 2005 [New Products] TD-SCDMA Chip Set Aids 3G Developers As far as consumer adoption goes, China is predicted to be the next great handset market. As a result, many companies are working to get their products and technologies into those devices. In its SoftFone-LCR chip set, for example, Analog Devices now offers a complete chip set for developers of 3G mobile terminals based on the TD-SCDMA Low Chip Rate (LCR) air interface. Powered by ADI's Blackfin processor, the chip set provides all of the critical functions that are needed to build a... — Staff January 2005 [Cover Story] Tools Aid Compliance With RF Safety Program Since the construction of the earliest television and radio antenna towers, health concerns over "overexposure" to non-ionizing radiation have surrounded wireless transmissions. With the growth of wireless communications services, these concerns have only increased. The Federal Communications Commission (FCC) has therefore adopted guidelines that govern the exposure to RF emissions for those operating FCC-licensed wireless transmitters. Compliance by FCC licensees isn't just recommended. It... — Robert E. Johnson January 2005 [Design Application] TV On The Go Is The New Mobile Experience As the market awaits the latest 3G phones, it's clear that consumers are eagerly anticipating new mobile-entertainment experiences. Mobile digital-broadcast TV is promising to deliver the big bang that will excite consumers worldwide. It marries two of history's hottest technological innovations: television and wireless telephones. The task that confronts wireless OEMs is to develop TV-enabled handsets that users will like. Limited offerings of analog broadcast television are now... — Bill Krenik December 2004 [Design Application] Access Isn't Always The Killer Application A great number of usage models fall under the "wireless" umbrella. For some users, access to a network infrastructure is the killer application. For others, the "killer app" is the capability to communicate independently between devices within a... — Charles Knutson December 2004 [Design Application] Integration Is A Must For Future Handsets There appears to be no end to the functionality that can be added to the next-generation mobile phone. This trend is partially driven by network operators. After all, they can realize a higher annual revenue per user by offering handsets with... — Jerry Loraine December 2004 [New Products] RF Subsystems Satisfy 3G And 4G Base Stations Although wireless-infrastructure spending suffered a slowdown over the last few years, development continued to thrive. To inspire spending and upgrades that will support more data-centric networks, recent products blend performance and features at... — Nancy Friedrich December 2004 [News] Bluetooth Headset Blocks The Wind On a windy day, using a cell phone outdoors can be so noisy that conversation is impossible-or at least intolerable. To combat this noise, Cardo Systems, Inc. (www.cardowireless.com) has debuted the scala-500. This versatile, comfortable, and... — Nancy Friedrich December 2004 [News] Cellular Phone Strives For World Dominance Until recently, there's been hardly any reason to bring one's cell phone abroad. As different regions and countries rallied around their favorite standards and fought to have them succeed, no one took steps to make sure that these technologies were... — Nancy Friedrich November 2004 [News] Single Chip Brings A-GPS To Mobile Phones When the Enhanced 911 (E911) mandate was put into place by the Federal Communications Commission (FCC), both carriers and device makers fought to cost effectively implement a service that seemed to offer little return on investment. Since that time,... — Nancy Friedrich November 2004 [Cover Story] Higher-Bandwidth DSP Covers Asia's Telecom Market Few places have experienced the explosive wireless-telecommunication-network growth that has been seen in Asia. The demand for wireless devices and, more importantly, the networks that support them has been especially great in China. For instance,... — John Blyler October 2004 [Design Application] FPGAs Help Software-Defined Radios Adapt With the proliferation of wireless standards, future devices will need to support multiple air interfaces and modulation formats. Software-defined-radio (SDR) technology enables such functionality. It uses a reconfigurable hardware platform across... — Deepak Boppana , et al. October 2004 [New Products] Switch Frees Boards Of LED And Light Pipe Panel building, instrumentation, and many other applications are tricky to implement. The problem is the risk of mechanical misalignment. To help engineers avoid such misalignment, the right-angle C&K ELUM illuminated pushbutton switch from ITT... — Nancy Friedrich  prev. page
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