Comparison of handover schemes for 3GPP Long Term Evolution and 3GPP2 Ultra Mobile Broadband

As a radio access technology for next generation cellular networks, 3GPP and 3GPP2 are standardizing long term evolution (LTE) and ultra mobile broadband (UMB), respectively. In this paper, we compare the handover schemes of both technologies in three aspects, i.e., interruption time of a user plane, required wireless resources and the overhead for avoiding packet reordering. The comparison results show that UMB achieves shorter interruption time and less overhead for reordering avoidance while LTE incurs less resource waste.