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`EXHIBIT 2
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`Case 2:22-md-03034-TGB ECF No. 104-2, PageID.8255 Filed 12/16/22 Page 2 of 4
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`Contact
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`www.linkedin.com/in/ruifeng-
`wang-9013b25 (LinkedIn)
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`Ruifeng Wang
`
`Wireless Systems Engineer
`Bellevue, Washington, United States
`
`Summary
`Specialties:
`
`Wireless Technologies: OFDM/OFDMA, CDMA, MIMO,
`Beamforming and massive MIMO, Digital communication theory,
`Signal detection and estimation, Dynamic spectrum sharing, URLLC,
`LEO satellite communication systems;
`
`System Design Expertise: Physical layer design, Signal processing
`algorithm development, Fixed point modelling, Link level and system
`level performance analysis, Physical layer procedures, MAC and
`RRC protocols;
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`Wireless Standards: 5G NR, 4G LTE, 3G UMTS, WiMax;
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`Software Development and Simulation Tools: Assemblies, C/C++,
`Matlab, Simulink, R;
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`Hardware Implementation and platforms: DSPs, modem chipsets
`
`Experience
`
`Wireless Systems Engineer
`May 2022 - Present (4 months)
`Kirkland, Washington, United States
`Wireless communication systems design for mobile devices.
`
`AT&T
`Principal Member Of Technical Staff
`November 2010 - April 2022 (11 years 6 months)
`Redmond, Washington, United States
`Exploration and realization of advanced radio technologies for mobile networks
`and devices (3GPP LTE, 5G NR).
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`Page 1 of 3
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`Case 2:22-md-03034-TGB ECF No. 104-2, PageID.8256 Filed 12/16/22 Page 3 of 4
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`Meteorcomm
`DSP Algorithm Design
`August 2010 - November 2010 (4 months)
`Designed baseband receiver algorithms, simulated in Matlab, analyzed
`end-to-end performance, and implemented in C for the proprietary wireless
`communication systems.
`
`Codiolink
`Chief Architect
`May 2009 - November 2010 (1 year 7 months)
`Wireless communication systems design for white space spectrum.
`
`RadioFrame Networks
`Senior Systems Engineer
`August 2008 - May 2009 (10 months)
`Baseband system architecture design and task partition for 3GPP UMTS femto
`access point and next generation ASIC
`
`Neocific (Walbell)
`Architect, Systems and DSP
`June 2004 - August 2008 (4 years 3 months)
`Modem algorithm design, link-level simultion, fixed-point modeling, system
`architecture design, product design and DSP implementation for WiMAX BS
`and MS
`
`NIIT and RadioFrame Networks
`Wireless Consultant
`February 2003 - May 2004 (1 year 4 months)
`System design, algorithm design and simulation, DSP implementation for
`3GPP UMTS WCDMA node B.
`
`AT&T Wireless
`Senior Systems Engineer
`July 2000 - January 2003 (2 years 7 months)
`System design and technology innovation for broadband wireless systems
`(AT&T Angel Project)
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`
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`COM DEV
`Sr. Member of Technical Staff
`March 1999 - July 2000 (1 year 5 months)
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`Page 2 of 3
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`Case 2:22-md-03034-TGB ECF No. 104-2, PageID.8257 Filed 12/16/22 Page 4 of 4
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`System design and product development for broadband mobile Internet access
`systems
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`Education
`Queen's University
`Ph.D. EE, Space-time signal processing for wireless
`communications · (1995 - 1999)
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`Beijing Jiaotong University
`BS and MS, Electrical and Electronics Engineering
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`Page 3 of 3
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