Heuristic radio resource management for massive MIMO in satellite broadband communication networks

A method of determining a radio resource mapping that assigns a plurality of user terminals to a set of radio resource blocks, for performing wireless communications between a hub station and the plurality of user terminals, the method comprising:

• obtaining a set of quantities indicating mutual radio interferences between pairs of user terminals among the plurality of user terminals;
• determining the radio resource mapping in one or more iterations, by successively updating an intermediate radio resource mapping, applying a constraint that each user terminal is assigned to at most one radio resource block among the set of radio resource blocks,
• wherein each iteration comprises:
• determining, for each radio resource block, based on the intermediate radio resource mapping and the set of quantities indicating mutual radio interferences, indications of aggregated radio interferences that are expected to be received by any non-assigned user terminals among the plurality of user terminals when assigned to the respective radio resource block, from any user terminals already assigned to the respective radio resource block;
• for a given non-assigned user terminal, determining, based on said indications of aggregated radio interferences, a radio resource block among the set of radio resource blocks that results in the smallest aggregated radio interference for the given non-assigned user terminal;
• and
• updating the intermediate radio resource mapping to assign the given non-assigned user terminal to the determined radio resource block.