Performance of LTE Self-Optimizing Networks Uplink Load Balancing
This paper presents a performance evaluation of an uplink load balancing algorithm for 3GPP Long-Term Evolution (LTE) Self-Optimizing/Organizing Networks (SON). The algorithm handles local overload situations in uplink by two different strategies: firstly passing load from overloaded cells to underloaded cells and secondly by controlling UL interference through UL Power Control (PC) parameter adjustment. The algorithm is distributed so it works independently in each eNodeB (eNB). Every eNB includes a specific SON module which takes various measurements from its own and the neighboring eNBs as an input and gives handover orders and parameter change commands to its designated eNB as an output.