公开(公告)号：US20140148176A1

公开(公告)日：2014-05-29

申请号：US14168322

申请日：2014-01-30

Applicant: Nokia Solutions and Networks Oy

Inventor： Bernhard Raaf ,  Oumer Teyeb ,  Wei Hua Zhou

IPC: H04W36/12 ,  H04W40/04

CPC classification number: H04W36/12 ,  H04B7/155 ,  H04B7/2606 ,  H04W28/08 ,  H04W36/0083 ,  H04W40/04 ,  H04W48/17 ,  H04W84/047 ,  H04W92/045

Abstract: Systems and techniques for avoiding inefficiencies resulting from failed handover attempts. A base station selects one or more mobility management entity (MME) pools for assignment to a relay nod; with the selection being performed so as to minimize or eliminate handover attempts requiring that a target device support a particular MME pool when the MME pool is not supported by the MME. A base station selects, when communicating with a relay node, a subset of the MME pools that it supports and assigns the subset to the base station. UEs served by the relay node are assigned the MME pool or MME pools assigned to the relay node. The relay node is informed of the MME pools supported by one or more neighbor nodes and, when attempting a handover to a neighbor node, attempts an X2 handover only to neighbor nodes supporting an MME pool assigned to the relay node.

Abstract translation: 避免由于失败的切换尝试而导致的低效率的系统和技术。 基站选择一个或多个移动性管理实体（MME）池用于分配给中继节点; 执行选择，以便当MME不支持MME池时，最小化或消除要求目标设备支持特定MME池的切换尝试。 当与中继节点通信时，基站选择其支持的MME池的子集，并将子集分配给基站。 由中继节点服务的UE分配给分配给中继节点的MME池或MME池。 向中继节点通知由一个或多个相邻节点支持的MME池，并且当尝试切换到相邻节点时，尝试仅向支持分配给中继节点的MME池的邻居节点进行X2切换。