公开(公告)号：US20170324574A1

公开(公告)日：2017-11-09

申请号：US15584379

申请日：2017-05-02

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Yu-Tien Yeh ,  Cheng-Hsiao Ko

IPC: H04L12/18 ,  H04W28/02 ,  H04L29/12 ,  H04L12/801

CPC classification number: H04L12/1877 ,  H04L29/12 ,  H04L47/12 ,  H04L47/2475 ,  H04L47/33 ,  H04W28/02 ,  H04W28/0273 ,  H04W28/0284 ,  H04W28/0289 ,  H04W28/12 ,  H04W48/04

Abstract: AT commands are used for controlling Mobile Termination (MT) functions and GSM/UMTS network services from a Terminal Equipment (TE) through Terminal Adaptor (TA). Application specific access control is an application/service specific access control mechanism for the operator to allow/prevent new access attempts from particular, operator-identified applications/services in the UE in idle mode. However, a TE does not always know the applicability of application specific access control. In accordance with one novel aspect, a new AT command interface that can report application specific access control status to the TE is proposed. It reduces wasteful signaling overhead by retries from the TE. Through the new AT command interface, the TE can query application specific access control status. Via unsolicited result code (URC), the MT can detect application specific access control applicability status change and report updated status to the TE.

公开(公告)号：US20160212791A1

公开(公告)日：2016-07-21

申请号：US14991371

申请日：2016-01-08

Applicant: MediaTek Inc.

Inventor： Cheng-Hsiao Ko ,  Shih-Chieh Liao ,  Ming-Wan Hsu ,  Chih-Kuang Wu

IPC: H04W76/02 ,  H04W76/04

CPC classification number: H04W76/18 ,  H04W88/06

Abstract: A method for efficient wireless communications includes transmitting a connection request via a communications apparatus to a peer device to try to establish a connection with the peer device to trigger a Circuit Switch Fallback (CSFB) procedure; starting a predetermined timer via the communications apparatus when transmitting the connection request; and when there is no response message received from the peer device by the time the predetermined timer expires, transmitting the connection request again via the communications apparatus to the peer device at least once to retry to establish the connection with the peer device.

Abstract translation: 一种用于有效无线通信的方法包括经由通信装置向对等设备发送连接请求，以尝试建立与对等设备的连接以触发电路交换机后退（CSFB）过程; 当发送所述连接请求时，经由所述通信装置启动预定定时器; 并且当在所述预定定时器到期之前没有从所述对等设备接收到响应消息时，经由所述通信设备再次将所述连接请求发送到所述对等设备，以重试以重新建立与所述对等设备的连接。

公开(公告)号：US20240224161A1

公开(公告)日：2024-07-04

申请号：US18383490

申请日：2023-10-25

Applicant: MEDIATEK INC.

Inventor： Shuang-An Chou ,  Cheng-Hsiao Ko ,  Yu-Hsiu Tseng ,  Kuang-Ting Cheng

IPC: H04W48/10 ,  H04W48/18

CPC classification number: H04W48/10 ,  H04W48/18 ,  H04W84/042

Abstract: A method for managing public land mobile network (PLMN) selection of a user equipment (UE) includes: receiving system information broadcasted from a first PLMN on which the UE currently camps, wherein the system information is indicative of a disaster condition of the first PLMN; in response to receiving the system information, performing a network aliveness validation operation while the UE still camps on the first PLMN; and managing the PLMN selection of the UE according to a result of the network aliveness validation operation.

公开(公告)号：US20240057200A1

公开(公告)日：2024-02-15

申请号：US18225067

申请日：2023-07-21

Applicant: MEDIATEK INC.

Inventor： Yu-Hsin Lin ,  Yuan-Chieh Lin ,  Cheng-Hsiao Ko ,  Shang-Ru Mo

IPC: H04W76/27 ,  H04W76/10

CPC classification number: H04W76/27 ,  H04W76/10 ,  H04W80/10

Abstract: A method of performing MT services using an indication to avoid barring in access control is provided. UE sends an indication related to an MT service to the NAS layer when the MT service starts, or when a corresponding communication session of the MT service is handover to 3GPP access. Once the service has successfully been set up, then as long as the service is ongoing, the following access attempts are allowed to proceed without further access control checking in order to avoid barring: MMTEL voice, MMTEL video, and SMSoIP. In one novel aspect, based on the indication provided to the NAS layer when the MT service starts or when handover to 3GPP access occurs, UE skips access control after UE goes to idle mode and establishes an RRC connection to resume the MT service.