ALEXANDRIA, Va., July 3 -- United States Patent no. 12,349,205, issued on July 1, was assigned to Apple Inc. (Cupertino, Calif.).
"Mapping between PRACH preambles and PUSCH resource units for 2-step RACH" was invented by Gang Xiong (Cupertino, Calif.), Yushu Zhang (Cupertino, Calif.) and Sergey Sosnin (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure describes improving a 4-step RACH procedure by using a 2-step RACH procedure. A UE transmits a PRACH preamble and associated MsgA physical uplink shared channel (PUSCH) on a configured time and frequency resource. After successful detection of the PRACH preamble, and decoding of the MsgA PUSCH, the gNB transmits MsgB in the second...