US 12,474,441 B2
Real-time THz sensing using true time delay
Siddharth K. Advani, Allen, TX (US); Shadi Abu-Surra, Plano, TX (US); Gang Xu, Allen, TX (US); and Vishnu Vardhan Ratnam, Plano, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 3, 2023, as Appl. No. 18/149,651.
Claims priority of provisional application 63/301,319, filed on Jan. 20, 2022.
Claims priority of provisional application 63/301,781, filed on Jan. 21, 2022.
Prior Publication US 2023/0228844 A1, Jul. 20, 2023
Int. Cl. G01S 7/282 (2006.01); G01S 7/00 (2006.01); G01S 7/41 (2006.01); G01S 13/58 (2006.01); H04B 7/06 (2006.01)
CPC G01S 7/282 (2013.01) [G01S 7/006 (2013.01); G01S 7/415 (2013.01); G01S 13/582 (2013.01); H04B 7/0617 (2013.01); H04B 7/06952 (2023.05)] 20 Claims
OG exemplary drawing
 
1. A method of operating a base station, the method comprising:
transmitting, by a transceiver that includes true time delay (TDD) elements and phase shifters configured in the transceiver, simultaneous frequency dependent (SFD) beams to scan an environment at a first granularity to detect a spatial cluster target in the environment, wherein each of the SFD beams corresponds to a different phase angle and different frequency;
determining, among the SFD beams, a subset of beams that detected the spatial cluster target;
beam switching, by the transceiver, using time division multiplexing (TDM) and a TDM bandwidth to scan a portion of the environment at phase angles that correspond to the subset of beams and at a second granularity finer than the first granularity, wherein each of the scan at the first granularity and the scan at the second granularity includes performing radar functions based on reflections from the spatial cluster target; and
combining data received from the SFD beams, by multiple threads that concurrently process data received from the SFD beams.