Chih-Hao Liu

Chih-Hao Liu is a well-known inventor in the field of wireless communications, who currently resides in San Diego, California. With over 100 patents to his name, Liu has contributed significantly to the advancement of wireless communication systems and methods. He is an exceptional inventor in his field, having recently filed patents such as Automatic gain control for co-existence of slot-based and sub-slot-based physical sidelink shared channels and Hybrid automatic repeat request responses for primary carrier assisted sidelink access.

As part of his creative endeavors, Chih-Hao Liu is currently working at QUALCOMM Incorporated, a widely recognized leader in the field of wireless communications. While working with QUALCOMM Incorporated, he has collaborated with scientists and researchers such as Srinivas Yerramalli and Tamer Kadous, who have also made significant contributions to the field of wireless communications.

Liu's latest innovation Automatic gain control for co-existence of slot-based and sub-slot-based physical sidelink shared channels, is aimed at making wireless communication even more streamlined and efficient. The technology involves transmitting power reservation signals of sub-slot resource pools to AGC symbol locations of slot resource pools, based on estimates of transmit power levels. This innovation allows for the simultaneous co-existence of slot-based and sub-slot-based physical sidelink shared channels, resulting in unprecedented efficiency in wireless communications.

Another recent innovation by Liu, Hybrid automatic repeat request responses for primary carrier assisted sidelink access, facilitates the transmission of hybrid automatic repeat request (HARQ) responses for sidelink communications between UEs on a secondary carrier. In this technology, a first user equipment (UE) transmits to a second UE via a sidelink sub-channel of a primary carrier, an indication that identifies one or more resources on the primary carrier for transmitting HARQ responses for sidelink communications.

Chih-Hao Liu's contributions to the field of wireless communications have been immeasurable. By harnessing his expertise and collaborating with his peers at QUALCOMM Incorporated, Liu has been instrumental in developing technologies that are at the forefront of modern wireless communication. As such, he is an inspiration to many aspiring inventors and researchers in the field.