公开(公告)号：US20170105241A1

公开(公告)日：2017-04-13

申请号：US15385996

申请日：2016-12-21

Applicant: MediaTek Inc.

Inventor： Yu-Tsun NIEN ,  Chin-Han WANG ,  Chen-Hsuan LEE ,  Sian-Jheng WONG ,  Chang-Ching YAN

IPC: H04W76/02 ,  H04W76/06 ,  H04L29/06 ,  H04B1/3816

CPC classification number: H04W76/15 ,  H04B1/3816 ,  H04L69/18 ,  H04W76/19 ,  H04W76/34

Abstract: A wireless communications device includes a radio frequency (RF) module and a baseband chip. The baseband chip is configured to initiate a mobile originated (MO) call through the RF module with a first subscriber identity card when the RF module is occupied by performing a packet switched (PS) data service with a second subscriber identity card, arbitrate a first protocol stack handler to suspend or terminate the PS data service associated with the second subscriber identity card in response to initiating the MO call associated with the first subscriber identity card, and arbitrate a second protocol stack handler to make the MO call associated with the first subscriber identity card when the PS data service associated with the second subscriber identity card is suspended or terminated.

公开(公告)号：US20170118255A1

公开(公告)日：2017-04-27

申请号：US15333029

申请日：2016-10-24

Applicant: MEDIATEK INC.

Inventor： Chih-Yuan TSAI ,  Chi-Chen LEE ,  Te-Huang LIU ,  Chin-Han WANG ,  Yu-Tien YEH

IPC: H04L29/06 ,  H04W12/02 ,  H04W48/04 ,  H04W76/02 ,  H04W68/00

CPC classification number: H04L65/1073 ,  H04L63/0272 ,  H04L63/164 ,  H04L65/1016 ,  H04L65/1069 ,  H04W8/183 ,  H04W12/02 ,  H04W48/04 ,  H04W76/16

Abstract: A mobile communication device including a wireless transceiver and a wireless transceiver is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network and a second service network. The controller uses a first subscriber identity card to establish one or more first radio bearers with the first service network via the wireless transceiver, uses a second subscriber identity card to set up an Internet Protocol Security (IPsec) tunnel with an evolved Packet Data Gateway (ePDG) of the second service network via the first radio bearers, and uses the second subscriber identity card to register an IP Multimedia Subsystem (IMS) service with the second service network via the IPsec tunnel.

公开(公告)号：US20200112593A1

公开(公告)日：2020-04-09

申请号：US16707170

申请日：2019-12-09

Applicant: MEDIATEK INC.

Inventor： Chih-Yuan TSAI ,  Chi-Chen LEE ,  Te-Huang LIU ,  Chin-Han WANG ,  Yu-Tien YEH

IPC: H04L29/06 ,  H04W48/04 ,  H04W12/02 ,  H04W8/18 ,  H04W76/16

Abstract: A mobile communication device including a wireless transceiver and a wireless transceiver is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network and a second service network. The controller uses a first subscriber identity card to establish one or more first radio bearers with the first service network via the wireless transceiver, uses a second subscriber identity card to set up an Internet Protocol Security (IPsec) tunnel with an evolved Packet Data Gateway (ePDG) of the second service network via the first radio bearers, and uses the second subscriber identity card to register an IP Multimedia Subsystem (IMS) service with the second service network via the IPsec tunnel.

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。