US 12,446,107 B2
Interfering in time-division duplex communication
Hanan Leizerovich, Petah Tikva (IL); and Assaf Monsa Chermon, Kfar Yedida (IL)
Assigned to D-FEND SOLUTIONS AD LTD., Raanana (IL)
Filed by D-FEND SOLUTIONS AD LTD., Raanana (IL)
Filed on Mar. 28, 2022, as Appl. No. 17/656,806.
Prior Publication US 2023/0012215 A1, Jan. 12, 2023
Int. Cl. H04W 76/30 (2018.01); H04L 5/14 (2006.01); H04W 72/02 (2009.01); H04W 72/0446 (2023.01); H04W 72/0453 (2023.01); H04W 72/541 (2023.01)
CPC H04W 76/30 (2018.02) [H04L 5/1469 (2013.01); H04W 72/02 (2013.01); H04W 72/0446 (2013.01); H04W 72/0453 (2013.01); H04W 72/541 (2023.01)] 40 Claims
OG exemplary drawing
 
1. A method for disconnecting a wireless time-division duplex communication link, said time-division duplex communication link being between a first node transmitting during time slots allocated to said first node and a second node, wherein the second node is transmitting during separate time slots allocated to said second node, said first node transmitting at a respective one of a plurality of frequency bands during each of said time slots allocated to said first node, said method comprising:
sub-dividing a time slot allocated to said first node into consecutive time intervals;
disrupting communication between said first node and said second node by transmitting, using a transmitter, respective interference signals during at least some of said time intervals while maintaining a frequency difference between any pair of consecutive interference signals below a frequency difference threshold, each of said interference signals being transmitted on one frequency band selected from a group of frequency bands, the group of frequency bands comprises the plurality of frequency bands, wherein for at least two of said time intervals said interference signals are transmitted on different frequency bands, wherein the frequency difference threshold does not exceed a portion of a frequency gap between (a) a lowest frequency band of the plurality of frequency bands and (b) a highest frequency band of the plurality of frequency bands, wherein the frequency difference threshold is dynamically adjusted based on a transmit spectrum mask requirement for limiting disruption to uninvolved systems in an urban environment or near airports.