Patent ID: 9420493
Filing Date: 2016-08-16
CPC Classification: H04W

Claim Text:
1. A computer implemented method for LTE heterogenous networks (HetNets), the method comprising: considering some transmission points (TPs) from a set of TPs of interest that are made inactive over a frame, and load balancing (known as user association), associating users to active TPs in the set of TPs such that each user is associated to any one active TP over the frame; reformulating the user association for any given set of active TPs in an LTE heterogenous network as coarse time-scale (frame-level granularity) and fine-time scale (fine sub-frame/slot level) approaches; performing periodically the coarse frame-level granularity based on averaged slowly varying metrics that are relevant for a period longer than a backhaul latency; and doing the fine sub-frame/slot level granularity with no coordination among TPs and independently by each active TP based on fast changing information; and determining joint on-off and user association as where inputs include an average single user rate of user u when connected to TP b in any active set of TPs reformulating the user association by selecting and adding to a (user,TP) pair such that the user has not been selected before and the pair offers a highest incremental gain among all pairs containing such users with responsive to an input of average single-user rates, per-TP user limits, and active set of TPs.