公开(公告)号：US20170195882A1

公开(公告)日：2017-07-06

申请号：US14986230

申请日：2015-12-31

Applicant: MediaTek Inc.

Inventor： Shih-Chieh LIAO ,  Tuan-Che CHEN

IPC: H04W12/08 ,  H04W76/04

CPC classification number: H04W12/08 ,  H04L63/20 ,  H04W12/00 ,  H04W76/27

Abstract: A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller determines, during an ongoing Non-Access Stratum (NAS) procedure, whether a SECURITY MODE COMMAND message received from the service network via the wireless transceiver fails an integrity protection check and no RRC CONNECTION RELEASE message has been received from the service network via the wireless transceiver, or whether transmission of a SECURITY MODE COMPLETE message to the service network via the wireless transceiver has failed. Also, the controller locally releases a connection to the service network when the SECURITY MODE COMMAND message fails the integrity protection check and no RRC CONNECTION RELEASE message has been received, or when the transmission of the SECURITY MODE COMPLETE message has failed.

公开(公告)号：US20160212603A1

公开(公告)日：2016-07-21

申请号：US14991443

申请日：2016-01-08

Applicant: MediaTek Inc.

Inventor： Tuan-Che CHEN ,  Chin-Han WANG ,  Lu-Tsung CHANG

IPC: H04W4/22 ,  H04W76/02 ,  H04W72/10

CPC classification number: H04W4/22 ,  H04W4/90 ,  H04W48/14 ,  H04W48/16 ,  H04W60/00 ,  H04W76/18 ,  H04W76/50

Abstract: A method for efficient wireless communications performed by a communications apparatus includes determining a cell according to a low priority list; and performing an attach procedure to try to attach to the cell for establishing an emergency call through the cell. The low priority list comprises information regarding a public land mobile network (PLMN) identity (ID), tracking area (TA) code, a cell ID and/or a closed subscriber group (CSG) ID of at least one attempted cell through which the communications apparatus has attempted but failed to establish an emergency call.

Abstract translation: 由通信装置执行的有效无线通信的方法包括：根据低优先级列表确定小区; 以及执行附接程序以尝试附加到所述小区以通过所述小区建立紧急呼叫。 低优先级列表包括关于至少一个尝试小区的公共陆地移动网络（PLMN）身份（ID），跟踪区域（TA）代码，小区ID和/或封闭用户组（CSG）ID的信息， 通信设备尝试但未能建立紧急呼叫。