Test GPS over the air
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2009-07-01 |
| Learn how over-the-air testing can reveal major antenna performance differences between GPS-enabled devices. |
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| Will Wi-Fi be a fundamental RAN?
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2009-03-30 |
| Know why Wi-Fi is poised to become the highest-performance, lowest-cost, indoor RAN technology on the market. |
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| Make 4G wireless a reality
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2009-01-19 |
| Know the infrastructure changes required for 4G services, and the considerations in making those changes. |
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| Go beyond LTE requirements, goals
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2008-12-26 |
| LTE presents a number of lofty goals, creating challenges for technology and service providers, and equipment manufacturers. |
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| Low-cost phone is rich in features
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2008-01-07 |
| Through the use of proven, mature tech, Tianyu has shown that features once reserved for high-end handsets, can be designed into today's low-cost phones. |
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| Full-featured Sony Ericsson UMTS phones are ultrathin
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2007-09-10 |
| Recent teardowns by Portelligent—of the 10mm-thick UMTS Sony Ericsson W880i—reveal a trimming of the display module waistline to enable a class of highly functional, ultrathin candy-bar cell phones |
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| Fast testers now tackle wireless handsets
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2005-09-16 |
| Here's a new-generation test solution that uses. advanced hardware and software for quick and accurate measurements in a variety of handsets |
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| Integrating CMOS designs in GSM front-ends
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2005-07-18 |
| Here's a comprehensive discussion of key technical problems in the design of a TD-SCDMA mobile-phone RF front-end |
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| Unclogging the pipeline toward 3G technology
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2005-07-01 |
| To make GSM apps work seamlessly in the field, an intimate knowledge of 3G technology's four fundamental blocks is required |
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| HSDPA worth the design hassles
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2005-07-01 |
| The burgeoning bandwidth raises the bar on data rates, allowing HSDPA to strengthen the foundation for the UMTS 3G spec |
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| High-speed packet service kick-starts migration to 3G
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2004-10-18 |
| Peak rates of up to 7Mbps and compatibility with legacy networks make HSDPA a good first step toward 3G cellular. |
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| Using RF power detector in mobile stations
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2004-10-01 |
| POWER |
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| Approaches toward next-gen intelligent wireless terminals
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2004-10-01 |
| Cellphone architectures must undergo dramatic change to meet requirements of operators and users. |
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| Software-defined radio comes of age
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2004-04-16 |
| Software-defined radio allows one radio platform to service multiple cellular standards. However, availability, cost and the diverse market have limited its deployment. |
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| DACs with FPGAs for direct-IF architectures
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2004-02-16 |
| FPGAs allow partitioning from the DAC for flexible pre-processing, making the resulting system more adaptable. |
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