Terrestrial network downlink and uplink co-channel interference management on non-terrestrial network uplink

A method for mitigating terrestrial network (TN) co-channel interference on a non-terrestrial network (NTN) uplink associated with a satellite of the NTN, the method comprising:

• obtaining, for each of a plurality of temporal frames of an orthogonalization schedule, a stored set of interference mitigations for the temporal frame, wherein:
• each interference mitigation is associated with a corresponding one of a set of interference conditions for the temporal frame, with a corresponding first orthogonalization scheme scheduled for application to TN communications by an implicated cell during the temporal frame, and with a corresponding second orthogonalization scheme scheduled for application to NTN uplink communications during the temporal frame,
• the first and second orthogonalization schemes are orthogonal, and
• each of the set of interference conditions is previously determined by predicting a beam coverage area of a beam being projected by the satellite for NTN uplink communications during the temporal frame, such that each of the set of interference conditions corresponds to an instance in which a cell coverage area of an implicated cell of a plurality of cells of the TN is overlapped by the beam coverage area and in which an implicated frequency range is assigned for both the NTN uplink communications in the beam and TN communications in the implicated cell during the temporal frame;
• directing a terrestrial radio access network, for each of the stored set of interference mitigations during its corresponding temporal frame of the plurality of temporal frames, to apply the corresponding first orthogonalization scheme to the TN communications by the implicated cell;
• and
• directing a non-terrestrial radio access network, for each of the stored set of interference mitigations during its corresponding temporal frame of the plurality of temporal frames, to apply the corresponding second orthogonalization scheme to the NTN uplink communications.

A system for mitigating terrestrial network (TN) co-channel interference on a non-terrestrial network (NTN) uplink associated with a satellite of the NTN, the system comprising:

• one or more processors;
• and
• a non-transitory, computer-readable memory having instructions stored thereon, which, when executed, cause the one or more processors to perform steps comprising:
• obtaining, for each of a plurality of temporal frames of an orthogonalization schedule, a stored set of interference mitigations for the temporal frame, wherein each of the set of interference conditions is:
• associated with a corresponding one of a set of interference conditions for the temporal frame, with a corresponding first orthogonalization scheme scheduled for application to TN communications by an implicated cell during the temporal frame, and with a corresponding second orthogonalization scheme scheduled for application to NTN uplink communications during the temporal frame, the first and second orthogonalization schemes being orthogonal;
• and
• previously determined by predicting a beam coverage area of a beam being projected by the satellite for NTN uplink communications during the temporal frame, such that each of the set of interference conditions corresponds to an instance in which a cell coverage area of an implicated cell of a plurality of cells of the TN is overlapped by the beam coverage area and in which an implicated frequency range is assigned for both the NTN uplink communications in the beam and TN communications in the implicated cell during the temporal frame;
• directing a terrestrial radio access network, for each of the stored set of interference mitigations during its corresponding temporal frame of the plurality of temporal frames, to apply the corresponding first orthogonalization scheme to the TN communications by the implicated cell;
• and
• directing a non-terrestrial radio access network, for each of the stored set of interference mitigations during its corresponding temporal frame of the plurality of temporal frames, to apply the corresponding second orthogonalization scheme to the NTN uplink communications.