Distributed mobility load balancing with RRM in LTE

Abstract

With the rapid growth of mobile communications, deployment and maintenance of cellular mobile networks are becoming more and more complex, time consuming, and expensive. In order to meet the requirements of network operators and service providers, the telecommunication industry and international standardization bodies have recently paid intensive attention to the research and development of self-organizing networks. As one of the most important self-optimization issues for Long Term Evolution (LTE), load balancing is highly concerned because of large demand of resources, time-varying traffic and market side reasons. In this paper, we introduce a novel distributed mobility load balancing algorithm through adjusting Radio Resource Management (RRM) parameters dynamically based on the source cell load and its neighboring cell condition. By setting different RRM parameters for different neighboring cell, the load can be directed to the target neighboring cells without causing much degradation of user's satisfaction.