ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,482, issued on July 21, was assigned to ZTE Corp. (Shenzhen, China).

"Reference signal port indication techniques" was invented by Meng Mei (Shenzhen, China), Bo Gao (Shenzhen, China), Shujuan Zhang (Shenzhen, China), Ke Yao (Shenzhen, China) and Yang Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are described to indicate reference signal port. An example wireless communication method includes determining, by a communication device, a demodulation reference signal (DMRS) port and at least one type of an orthogonal code; and receiving, by the communication device at the DMRS port, a DMRS based on the at least one ty...