ALEXANDRIA, Va., March 19 -- United States Patent no. 12,256,424, issued on March 18, was assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP. LTD. (Guangdong, China).
"Method and device for information transmission" was invented by Weijie Xu (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for information transmission includes that: a terminal device sends a first preamble and a first uplink data channel to a network device; the terminal device receives first downlink control information from the network device; and the terminal device determines at least one of the following based on a related parameter of the first DCI: a type of a random access channel (RACH) process; a con...