Choong-Il Yeh

Title: Choong-Il Yeh: Innovator in Mobile Wireless Access Systems

Introduction

Choong-Il Yeh is a prominent inventor based in Daejeon, South Korea. He has made significant contributions to the field of mobile wireless access systems, holding a total of seven patents. His work focuses on improving communication technologies, particularly in the areas of uplink control channels and beam forming methods.

Latest Patents

One of his latest patents is titled "Structure and construction method of uplink control channel in mobile wideband wireless access system." This invention relates to the configuration of an uplink control channel, which includes a long cyclic prefix designed to mitigate interference and distortion caused by multipath transmission characteristics. The patent also describes a short orthogonal frequency division multiple (OFDM) symbol used for transmitting uplink control information when the number of terminals is limited.

Another notable patent is the "Beam forming method and apparatus." This invention outlines a method for forming a random beam using a quantization preprocessor and a random unitary matrix. The base station utilizes a codeword index from a quantization codebook received from a mobile terminal, enhancing system efficiency through selective diversity.

Career Highlights

Throughout his career, Choong-Il Yeh has worked with esteemed organizations such as the Electronics and Telecommunications Research Institute and Samsung Electronics Co., Ltd. His experience in these companies has allowed him to develop innovative solutions that address the challenges in mobile communication.

Collaborations

He has collaborated with notable colleagues, including Dong-Seung Kwon and In-Kyeong Choi. Their joint efforts have contributed to advancements in wireless technology and have furthered the impact of Choong-Il Yeh's inventions.

Conclusion

Choong-Il Yeh's contributions to mobile wireless access systems demonstrate his commitment to innovation and excellence in technology. His patents reflect a deep understanding of communication challenges and a drive to enhance system performance.