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5G System Level Testing: Requirements and Challenges

오후 1:30 - 오후 2:00

The promise of 5G addresses the ever-increasing number of devices that will be connected to the network with ultra-low-latency, ultra-high data rates and reliability. In order to meet these requirements, there is an exponential increase in technical complexities and challenges with 5G new radio, massive MIMO, millimeter-wave (mmWave) frequencies and over-the-air (OTA) test methods. Collectively, these changes in 5G have major implications in the way these antenna arrays are designed and properly tested.

In 5G Sub-6 GHz, the introduction of new frequencies and RF channels to test makes the probing of antennas for accurate pad placement in a constrained form factor design difficult.

In the case of 5G mmWave, beamforming use antenna arrays with shorter element sizes at high frequencies that form a large number of radiating elements. Such antenna array design choices along with antenna modules impose new hurdles for mass production testing where OTA is required and with significant data path loss at mmWave frequencies. Further, the specific requirement for mmWave OTA test methods are not fully defined but the solution needs to address RF measurements, modulation and functional test items in a budgeted test time and cost consideration.

Speaker

Rex Chen

Rex Chen

Director of Business Development, LitePoint

Rex Chen, Ph.D. recently joined LitePoint as the Director of Business Development with responsibility as the 5G evangelist for business growth and strategic partnerships.

Prior to joining LitePoint, Chen was Director of Engineering for Intel. During his 1.5 years at Intel, Chen spent time leading a global R&D team in the wireless modem group and was also the Factory Production Project Engineer (PE). And before Intel, Chen spent more than 10 years in total at Qualcomm, working on a variety of engineering developments and subsequently serve as global RF factory support lead for more than five generations of the snapdragon modem.

Chen received a Ph.D. degree in Computer Science from the University of California, Irvine and holds 4 U.S. patents. Earlier in his career, he worked at Cisco and several start-up companies. He enjoys mentoring & advising start-up companies in 5G wireless space and speaks fluent Mandarin Chinese.