公开(公告)号：US20150382396A1

公开(公告)日：2015-12-31

申请号：US14755527

申请日：2015-06-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bharat BHAT ,  Anand BIRADAR ,  Ananth Kumar RAMASAMY

IPC: H04W76/02 ,  H04W76/06 ,  H04W64/00 ,  H04W36/14

CPC classification number: H04W76/19 ,  H04W60/00 ,  H04W76/16 ,  H04W76/34 ,  H04W76/38

Abstract: A method and an apparatus are provided for improving availability of a circuit switched (CS) service to a user equipment (UE). The UE sends at least one location area update (LAU) message, to a core network (CN), to initiate an LAU procedure. A release of a CS signaling connection between the UE and the CN is detected due to a failure in the LAU procedure. An ongoing PS signaling connection between the UE and the CN is identified, when the CS signaling connection between the UE and the CN is released. The ongoing PS signaling connection is released. A public land mobile network (PLMN) is selected for obtaining CS services from the core network, when the ongoing PS signaling connection is released.

Abstract translation: 提供了一种用于改善对用户设备（UE）的电路交换（CS）服务的可用性的方法和装置。 UE向核心网络（CN）发送至少一个位置区域更新（LAU）消息以发起LAU过程。 由于LAU过程中的故障，检测到UE和CN之间的CS信令连接的释放。 当UE和CN之间的CS信令连接被释放时，识别出UE和CN之间正在进行的PS信令连接。 正在进行的PS信令连接被释放。 当正在进行的PS信令连接被释放时，选择公共陆地移动网络（PLMN）来从核心网获得CS服务。