Enhanced layer-3 handover using the layer-2 triggers

In this paper, we propose a fast layer-3 (L3) handover (HO) scheme optimized for the layer-2 (L2) triggers, which are proposed to represent the more detailed HO state of the wireless access system. Especially we define the more than one trigger which can arise during L2 HO procedure according to the dynamic state of the wireless environment, and design the new fast L3 HO scheme where the appropriate behaviors (fast HO components) are mapped into the proposed triggers reasonably. Then we combine these components in the order of occurring triggers. The analytic results show that the proposed scheme is able to be more adaptable to dynamic wireless state than the previous fast HO schemes.