公开(公告)号：US20170064762A1

公开(公告)日：2017-03-02

申请号：US15221181

申请日：2016-07-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ananth Kumar RAMASAMY ,  Bharat Vinayak BHAT ,  Nitin JAIN

IPC: H04W76/02 ,  H04W76/04 ,  H04W68/02 ,  H04W4/16

CPC classification number: H04W76/18 ,  H04W4/16 ,  H04W8/183 ,  H04W68/02 ,  H04W76/16 ,  H04W76/27 ,  H04W88/06

Abstract: Methods and apparatuses are provided for providing integrity protection in a dual subscriber identity module (SIM) dual standby (DSDS) device. A first message is received on a first SIM of the DSDS device before a radio resource of the DSDS device is tuned away from the first SIM to a second SIM by performing a tune-away procedure. A second message is received after completion of the tune-away procedure. The second message is validated. It is determined whether a first payload of the first message matches a second payload of the second message, when the first message and the second message have a same message sequence number. It is determined that the second message is a duplicate message, when the first payload matches the second payload.

Abstract translation: 提供了用于在双用户识别模块（SIM）双待机（DSDS）设备中提供完整性保护的方法和装置。 在DSDS设备的无线电资源通过执行调谐过程被调谐离开第一SIM到第二SIM之前，在DSDS设备的第一SIM上接收第一消息。 在完成调谐程序之后接收到第二条消息。 第二条消息被验证。 当第一消息和第二消息具有相同的消息序列号时，确定第一消息的第一有效载荷是否匹配第二消息的第二有效载荷。 当第一有效载荷与第二有效负载匹配时，确定第二消息是重复消息。

公开(公告)号：US20160219646A1

公开(公告)日：2016-07-28

申请号：US14713398

申请日：2015-05-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ananth Kumar RAMASAMY ,  Diwakar Sharma ,  Umasankar Ceendhralu Baskar

IPC: H04W76/04

CPC classification number: H04W76/27

Abstract: Methods and apparatuses are provided for preserving a Radio Resource Control (RRC) state of a User Equipment (UE). The UE receives, from a radio network controller, a physical channel reconfiguration message for transitioning the RRC state of the UE. ACircuit Switching (CS) event is detected at the UE. A physical channel reconfiguration failure message associated with a failure cause to preserve the RRC state of the UE, is transmitted from the UE to the radio network controller.

Abstract translation: 提供了用于维护用户设备（UE）的无线电资源控制（RRC）状态的方法和装置。 UE从无线电网络控制器接收用于转换UE的RRC状态的物理信道重配置消息。 在UE处检测到电路交换（CS）事件。 与故障相关联的物理信道重配置失败消息导致保持UE的RRC状态，从UE发送到无线网络控制器。

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。