Multi-connectivity scheduler for a multi-rat system

Abstract

A practical multi-connectivity scheduler for OFDMA-based multi-RAT heterogeneous systems that is general enough to function optimally in a variety of uplink and downlink scenarios, while minimizing energy consumption. An incoming queue where data destined to a respective mobile terminal is buffered, is created for each of a plurality of mobile terminals. The scheduler is configured to execute, based on queue information and system constraint information, a resource scheduling algorithm that jointly decides on the allocation of PRBs, Physical Resource Blocks, to each of the links between a RAT and a mobile terminal, on the assignment of modulation levels to each of the allocated PRBs, and on the activation/deactivation of each RAT.