【資料名稱】：MLB

【資料作者】：mlb

【資料日期】：2012.10.23

【資料語言】：英文

【資料格式】：PDF

【資料目錄和簡介】：

Abstract—Mobility Load Balancing (MLB) is one of the most
important functions of Self-Organizing Networks (SON) in
Long Term Evolution (LTE). The conventional MLB schemes
based on handover (HO) conflict with Mobility Robustness
Optimization (MRO) because both operations adjust the same
HO parameters. The simulation results show that the
conventional MLB scheme cannot achieve load balancing gain
without some degradation in HO performance. In order to
solve the conflict problem, this paper proposes an MLB scheme
based on cell reselection (CR) that works in coordination with
MRO. The proposed scheme adjusts the CR parameters and
not the HO parameters, and never conflicts with MRO.
Through computer simulations, it is shown that the proposed
scheme can realize effective load balancing on a par with
conventional schemes without any degradation in HO
performance. The simulation results show that the proposed
scheme is especially effective in an environment where a lot of
small-size data packets are transmitted by a large number of
users, which is highly applicable to current mobile networks
with explosive diffusion of smart phones. In such case, more
than 10% and 90% gains can be obtained in the total
throughput and 5th
percentile user throughput, respectively.