US 12,244,356 B2
Methods and systems for nulling in wireless communication networks
Ning Wei, Guangdong (CN)
Assigned to ZTE Corporation, Shenzhen (CN)
Filed by ZTE Corporation, Guangdong (CN)
Filed on Jul. 15, 2022, as Appl. No. 17/866,139.
Application 17/866,139 is a continuation of application No. PCT/CN2020/073021, filed on Jan. 19, 2020.
Prior Publication US 2022/0352994 A1, Nov. 3, 2022
Int. Cl. H04B 15/00 (2006.01); H04L 5/00 (2006.01)
CPC H04B 15/00 (2013.01) [H04L 5/0053 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a first wireless communication node for initiating a nulling transmission, the method comprising:
transmitting a control message to be received by a second wireless communication node,
wherein the control message informs the second wireless communication node to initiate the nulling transmission toward a first station;
transmitting data to the first station during transmission of the nulling transmission from the second wireless communication node to the first station; and
transmitting the control message to the first station so as to cause the first station to transmit a response message to be received by the second wireless communication node,
wherein the response message causes the second wireless communication node to select a second station based on whether a strength of a residual signal to be received by the first station as a result of the data transmission from the second wireless communication node to the second station is less than or equal to a predetermined threshold value, and
wherein a nulling operation is performed on a data transmission from the second wireless communication node to the second station.