ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,452,887, issued on Oct. 21.
"Random access channel (RACH) coverage enhancement" was invented by Reza Kalbasi (San Diego).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a method of random access channel (RACH) procedure at a user equipment (UE). The method includes transmitting a first message including a random preamble selected from a set of preambles to a base station (BS), receiving a second message including control information required for establishing communication between the UE and the BS in one or more physical downlink control channels (PDCCHs) in a first time duration, determining one PDCCH in the one or more PDCCHs whic...