Interference mitigation in terrestrial network -- non-terrestrial network integrated systems

An apparatus configured for wireless communications, comprising:

• one or more memories comprising processor-executable instructions;
• and one or more processors configured to execute the processor-executable instructions and cause the apparatus to:
• receive, from a terrestrial network entity, constellation information and trajectory information of one or more non-terrestrial network (NTN) entities in a non-terrestrial network (NTN);
• compute an estimated received power at an NTN entity of the one or more NTN entities for a transmission from the apparatus to the NTN entity based on the constellation information and the trajectory information of the NTN, a predicted path loss from the apparatus to the NTN entity, a transmit power of the apparatus and an antenna gain of the apparatus;
• determine whether the estimated received power at the NTN entity is greater than a threshold stored in the one or more memories;
• and
• adjust, based on a determination that the estimated received power at the NTN entity is greater than the threshold, an antenna configuration or a beamforming configuration for transmission between the apparatus and the terrestrial network entity thereby reducing interference to the NTN entity caused by transmission with the terrestrial network entity.

A method for wireless communications by an apparatus comprising:

• obtaining constellation information and trajectory information of one or more NTN entities in a NTN;
• determining a position of a user equipment in communication with the apparatus;
• determining a signal projection cone based on the position of the user equipment, a position of the apparatus, and a beam width of a beam used for the communication between the user equipment and the apparatus;
• determining that the one or more NTN entities are located within the signal projection cone;
• and
• transmitting a first signal to the user equipment based on the determination that the one or more NTN entities are located within the signal projection cone.

A method for wireless communications by an apparatus comprising:

• receiving, from a terrestrial network entity, constellation information and trajectory information of one or more NTN entities in a NTN;
• computing an estimated received power at an NTN entity of the one or more NTN entities for a transmission from the apparatus to the NTN entity based on the constellation information and the trajectory information of the NTN, a predicted path loss from the apparatus to the NTN entity, a transmit power of the apparatus and an antenna gain of the apparatus;
• determining whether the estimated received power at the NTN entity is greater than a threshold stored in one or more memories of the apparatus;
• and
• adjusting, based on a determination that the estimated received power at the NTN entity is greater than the threshold, an antenna configuration or a beamforming configuration for transmission between the apparatus and the terrestrial network entity thereby reducing interference to the NTN entity caused by transmission with the terrestrial network entity.