Patent ID: 11901987
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A base station (BS) in a wireless communication system, the BS comprising:
a processor configured to:
configure a data beam to be transmitted to a user equipment (UE) to have a null area in a direction of a satellite earth station (ES), the null area defining a space within a coverage area of the data beam in which a signal from the data beam is suppressed, wherein to configure the data beam, the processor is further configured to:
generate a steering vector to the ES;
obtain a UE channel matrix via a sounding reference signal (SRS);
determine a rank value;
determine a beamforming vector based on increasing a received signal power at the UE without exceeding a power leakage constraint in the direction of the ES, wherein the power leakage constraint is a function of (i) a threshold parameter associated with a nulling level in the direction of the ES and (ii) the steering vector to the ES; and
generate, based on the beamforming vector, a beamforming precoder configured to directional null the data beam in the direction of the ES; and

a transceiver operably coupled with the processor, the transceiver configured to transmit the generated data beam to the UE.