方案中利用了层次化结构的区域注册和重路由机制，减少了切换时延和网络的信令负荷。
By adopt the regional registration and re-routing scheme in hierarchical networks, both the handover delay and signaling load may be decreased.
为了减小基于MPLS的移动IP网络的信令开销、切换时延和切换丢包，人们提出了一种称为LSP扩展的移动性管理机制。
An LSP extension mechanism is proposed to decrease the signaling overhead and handoff delay and to eliminate the packet loss in MPLS based mobile IP networks.
SIGTRAN作为下一代网络中专门用于传输信令的传输层协议，对信令传输的可靠性、时延等问题起着至关重要的作用。
Transport layer protocol of SIGTRAN that is special for the signal transmission plays a very important role in keeping the reliability of the signal transmission.
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