ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,381,684, issued on Aug. 5, was assigned to Rakuten Symphony Inc. (Tokyo).

"SRS layer and port estimation for uplink and downlink transmission" was invented by Raghavendra Madanahally Ramakrishna (Bangalore, India), Ronak Bharatkumar Lalwala (Bangalore, India), Vijayakumar Yalamalli (Bangalore, India) and Vihang Kamble (Surrey, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for selecting layers and ports for Multiple-Input-Multiple-Output (MIMO) beamforming are provided. In some implementations, the techniques may include receiving a plurality of Sounding Reference Signals (SRSs) transmitted by a plurality of SRS ports, each of th...