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1. 发明授权

US09420443B2 Cleanup of LAU-less circuit switched fallback emergency call 有权
标题翻译：清理无电路电路切换后备紧急呼叫
公开(公告)号：US09420443B2
公开(公告)日：2016-08-16
申请号：US13744871
申请日：2013-01-18
申请人： NOKIA SIEMENS NETWORKS OY
发明人： Curt Wong , Devaki Chandramouli , Laszlo Janosi , Lauri Kalevi Lahtinen
IPC分类号： H04W4/22 , H04W36/00 , H04W76/00
CPC分类号： H04W4/22 , H04W4/90 , H04W36/0022 , H04W76/50
摘要： Communication systems may benefit from various aspects of emergency call handing. For example, wireless communication systems may benefit from clean up with respect to a fast return feature applied to an emergency call using circuit switched fallback, without a location area update. A method may include identifying an emergency communication that is a circuit switched fallback communication of a user equipment. The method may also include configuring communications so that mobile terminated services work properly after completion of the emergency communication. More particularly, for example, a method may include determining in a network element that the emergency communication is a circuit switched fallback communication. The method may also include, when the emergency call is ended, avoiding invoking a fast return feature for the user equipment.
摘要翻译：通信系统可能受益于紧急呼叫处理的各个方面。例如，无需通过位置区域更新，无线通信系统可以利用使用电路交换回退应用于紧急呼叫的快速返回功能进行清理。一种方法可以包括识别作为用户设备的电路交换回退通信的紧急通信。该方法还可以包括配置通信，使得移动终端服务在紧急通信完成之后正常工作。更具体地，例如，方法可以包括在网络元件中确定紧急通信是电路交换回退通信。该方法还可以包括当紧急呼叫结束时避免为用户设备调用快速返回特征。

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