ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,438,666, issued on Oct. 7, was assigned to T-Mobile USA Inc. (Bellevue, Wash.).
"User-specific demodulation reference signals" was invented by Sanghoon Sung (Ashburn, Va.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A user equipment (UE) device generates a first channel estimate for a physical telecommunications channel based on a first demodulation reference signal (DMRS) received at the UE. The first DMRS has a format that includes a signal at a first number of symbol positions of an orthogonal frequency-division multiplexing (OFDM) scheme. A data transmission received at the UE is demodulated based at least in part on the first channel estimate. Whe...