ライトポイント ニュースレター, Q3 2017
IQcell is tailored for mobile device makers to perform 2G/3G/4G cellular simultaneous testing on multiple devices in manufacturing and repair center environments. IQcell emulates the end-user experience use-cases such as mobile hotspot functionality, voice-over-LTE (VoLTE) calling, internet browsing, and streaming videos. This enables manufacturers to simulate what a user actually sees instead of trying to correlate a parametric measurement into a user’s actual experience with the mobile device. IQcell is available in 1-DUT, 2-DUT, and 4-DUT test configurations.
For a product overview and more information, please visit the IQcell product page.
IQramp started as a LitePoint-internal tool three years ago, the brainchild of a team of application engineers who were frustrated with processing data in spreadsheets. The concept was simple: an intuitive, interactive web-like application that could natively parse data files and immediately display plots. A tool that minimizes the role of cumbersome commercial spreadsheets and hard-to-deploy large-scale databases, IQramp rapidly extracts insightful analytics and reuses templates to eliminate redundant busywork. IQramp has now been adopted by many of our major customers and all LitePoint application engineers, helping them analyze IQfact+, IQvector, and zScript data for DVT, regression testing, and more.
Are you ready to free yourself from mundane data management tasks and accelerate your products into market with a high level of confidence in their quality? If so, please find more info on the IQramp product page and request your free trial license today.
Want to learn more about wireless device testing and important industry topics? Additional thought leadership from LitePoint experts is on our Tech Corner page.
Power Amplifiers EVM Testing Impairments (App Note)
Among all PA characteristics, EVM is usually most critical for Wi-Fi applications. Because 802.11ax includes 1024QAM constellations with a -35 dB system-level EVM specification limit, the PA linearity and corresponding EVM contribution requirements are more stringent than earlier 802.11 standards. Whereas the EVM contribution limit for an 802.11ac PA was around -40 dB, the target EVM contribution limit for an 802.11ax PA is around -46 dB. There are several kinds of impairments that affect PA EVM testing which are described in this App Note in detail.
- Power calibration
- Analysis settings – Full Packet vs Header Only
- Different waveforms/payloads
- Different MCS
- Different impedance match
- PA gain droop due to temperature
- PA Enable timing
- Power supply transients and droops
Recent LitePoint-Authored Articles
LitePoint experts have contributed to several preeminent industry publications this quarter.
- Over-the-Air BLE Test Systems Pinpoint Wireless Quality Issues
- 5G & IoT Create a Market for mmWave
- BLE Antenna Testing Helps Optimize IoT Device Performance
For more information on where and when you can connect with LitePoint, please visit our Events page.
5G Heterogeneous Networks & Implications on RF Test (Webcast)
5G seeks to converge local and wide area networks for seamless, reliable, low latency and high-throughput connectivity. It will provide enhanced mobile broadband speeds and end users will have the perception of being always connected. These network characteristics will enable myriad use cases spanning from consumer to commercial to industrial applications. Join us for a webcast to learn about the forefront of 5G RF and mmWave test solutions.
Learn More & Register
The Evolution from Wi-Fi Router to Mini-Base Station – Solving the Test & Deployment Challenges for 802.11ax (Webcast)
802.11ax aims to solve the wireless network capacity problems that beleaguer current generation Wi-Fi. It leverages various tried-and-true wireless transmission technologies as well as focuses on some new aspects of how Wi-Fi operates. Watch our webcast to learn about solutions for the test and deployment challenges of 802.11ax and the significance of how and why your Wi-Fi access point is transitioning to a mini-base station.