US 12,267,140 B2
Optimizing scanning beam penetration
Mohammad Khojastepour, Lawrenceville, NJ (US); and Nariman Torkzaban, College Park, MD (US)
Assigned to NEC Corporation, Tokyo (JP)
Filed by NEC Laboratories America, Inc., Princeton, NJ (US)
Filed on May 3, 2023, as Appl. No. 18/311,353.
Claims priority of provisional application 63/339,038, filed on May 6, 2022.
Prior Publication US 2023/0361849 A1, Nov. 9, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 7/0426 (2017.01); H04B 7/0495 (2017.01)
CPC H04B 7/06958 (2023.05) [H04B 7/0447 (2013.01); H04B 7/0495 (2013.01); H04B 7/0639 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A beamforming method, comprising:
determining a tradeoff curve between scanning beamwidth and transmission beamwidth based on a channel distribution for a base station with a recursive process that stops responsive to reaching a level of recursion where a number of tested beam patterns equals 2b2+b, where b is a number of scanning time slots;
selecting a set of scanning beams based on the tradeoff curve;
scanning for devices around the base station using the set of scanning beams;
selecting a set of transmission beams for communications with the devices based on information received during the scanning; and
transmitting using the set of transmission beams with a beamforming transmitter.