Ji Ho Jang

Title: Ji Ho Jang: Innovator in 5G Technology

Introduction

Ji Ho Jang is a prominent inventor based in Seoul, South Korea. He has made significant contributions to the field of wireless communication, particularly in enhancing the performance of 5G technology. With a total of 3 patents to his name, Jang is recognized for his innovative approaches to signal processing and channel state information extraction.

Latest Patents

One of Ji Ho Jang's latest patents is a PBCH signal accumulation method and PBCH decoder for enhancing the performance of 5G NR receivers. This invention relates to a method of accumulating and decoding a PBCH signal received by a 5G NR receiver. The method includes generating an inversion vector to negate at least one bit of a system frame number (SFN) included in the received PBCH signal. It also involves performing accumulation over at least one frame by executing modulo addition on the generated inversion vector and the received PBCH signal. The accumulated PBCH signals are then decoded, and the validity of the decoded PBCH is checked to reconstruct the SFN.

Another notable patent is a channel state information extraction method and MIMO receiver using QR decomposition and MMIB metric. This invention pertains to a CSI extraction method in a MIMO receiver used in wireless communication systems. The method includes obtaining an effective channel matrix through matrix multiplication of a precoding matrix and a channel estimation value obtained via a CSI-RS. It calculates an upper and lower bound of a minimum distance for each layer through QR decomposition for the effective channel matrix. The upper and lower bounds of the minimum distance for each layer are then mapped to each codeword, extracting a mean mutual information per bit (MMIB) metric that represents the transmission capacity per unit frequency for each codeword.

Career Highlights

Ji Ho Jang is currently employed at GCT Research, Inc., where he continues to develop innovative solutions in the field of wireless communication. His work focuses on improving the efficiency and performance of communication systems, particularly in the context of 5G technology.

Collaborations

Throughout his career, Ji Ho Jang has collaborated with notable colleagues, including Tae Won Park and In Seok Hwang. These collaborations have contributed to the advancement of technology in their respective fields.

Conclusion

Ji Ho Jang is a distinguished inventor whose work in 5