ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,756,434, issued on Oct. 6, was assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (Stockholm).

"Reference signal port mapping" was invented by Fredrik Athley (Vastra Frolunda, Sweden), Xinlin Zhang (Gothenburg, Sweden) and Mattias Frenne (Uppsala, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for reducing the number of beams required per symbol. The method is performed by a base station (gNB). The method includes transmitting reference signals (RSs) and receiving a report from a UE (302), the report identifying a matrix. The method also includes using the identified matrix to transmit data to the UE or schedule the UE. The matrix identif...