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    Multi-Subscriber Identity Module User Equipment and Re-Synchronizing Method Thereof
    2.
    发明申请
    Multi-Subscriber Identity Module User Equipment and Re-Synchronizing Method Thereof 审中-公开

    公开(公告)号：US20190007913A1

    公开(公告)日：2019-01-03

    申请号：US15640653

    申请日：2017-07-03

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yuan Tsai ,  Shu-Hao Yeh ,  Zong-Syun Lin ,  Yun-Hsuan Chang

    IPC: H04W56/00 ,  H04W76/02

    Abstract: A dual SIM user equipment and a re-synchronizing method thereof are provided. The dual SIM user equipment includes a single radio frequency module, a first SIM and a second SIM. The first SIM connects with a first network via utilizing the single radio frequency module at first. The second SIM then connects with a second network via utilizing the single radio frequency module. The first SIM monitors the second SIM for determining that the second SIM disconnects from the second network. The first SIM then transmits a synchronization information to the first network for re-synchronizing to the first network while the first SIM determines that there is no data to be transmitted to the first network.

    Methods for shortening CSFB performance time and communication apparatuses utilizing the same
    5.
    发明授权
    Methods for shortening CSFB performance time and communication apparatuses utilizing the same 有权
    缩短CSFB性能时间的方法和利用其的通信装置

    公开(公告)号：US09178758B2

    公开(公告)日：2015-11-03

    申请号：US13941608

    申请日：2013-07-15

    Applicant: MediaTek Inc.

    Inventor： Hung-Yueh Chen ,  Chun-Pin Chen ,  Chih-Yuan Tsai

    IPC: H04L12/24 ,  H04W36/00

    CPC classification number: H04L41/0681 ,  H04W36/0022

    Abstract: A method for shortening a circuit switch fallback (CSFB) performing time includes determining a plurality of weighting values each associated with one of a plurality of frequencies to be measured during a CSFB procedure, determining a frequency measurement sequence for scheduling the frequencies to be measured in sequence according to the determined weighting values, and measuring a signal quality on the frequencies according to the frequency measurement sequence.

    Abstract translation: 一种用于缩短电路交换机回退（CSFB）执行时间的方法包括：在CSFB过程期间，确定与待测量的多个频率中的一个频率相关联的多个加权值，确定用于调度要测量的频率的频率测量序列 根据确定的加权值进行序列测量，并根据频率测量序列测量频率上的信号质量。

    Apparatuses and methods for voice call service provision
    6.
    发明授权
    Apparatuses and methods for voice call service provision 有权

    公开(公告)号：US11477701B2

    公开(公告)日：2022-10-18

    申请号：US16909006

    申请日：2020-06-23

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yuan Tsai ,  Wei-Chiang Peng

    IPC: H04W36/00 ,  H04L65/1016 ,  H04W48/18 ,  H04W36/14

    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 3rd Generation Partnership Project (3GPP) network using a first Radio Access Technology (RAT). The controller establishes one or more radio bearers with the first 3GPP network via the wireless transceivers, and establishes a secure tunnel with a non-3GPP interworking gateway of a second 3GPP network via the radio bearers. The second 3GPP network utilizes a second RAT. Also, the controller registers, via the secure tunnel, an IP Multimedia Subsystem (IMS) service with an IMS server communicatively connected to the second 3GPP network, so as to make a voice call over the first 3GPP network.

    Methods for autonomous fast return to preferred RAT and communications apparatuses utilizing the same
    8.
    发明授权
    Methods for autonomous fast return to preferred RAT and communications apparatuses utilizing the same 有权
    用于自主快速返回到优选RAT的方法和使用该RAT的通信设备

    公开(公告)号：US09326199B2

    公开(公告)日：2016-04-26

    申请号：US14037885

    申请日：2013-09-26

    Applicant: MediaTek Inc.

    Inventor： Hung-Yueh Chen ,  Chi-Chen Lee ,  Chih-Yuan Tsai ,  Chun-Pin Chen ,  Yen-Cheng Lai

    IPC: H04W36/00 ,  H04W72/00 ,  H04W4/00

    CPC classification number: H04W36/0066 ,  H04W36/0022

    Abstract: A communications apparatus includes an RF signal processing device, a baseband signal processing device and a processor. The processor controls operations of the RF signal processing device and the baseband signal processing device, camps on a first cell of a first RAT, collects cell selection/reselection parameters of one or more frequencies of the first RAT in an autonomous fast return (AFR) list, switches from the first RAT to the second RAT to camp on a second cell of the second RAT, establishes a connection with a peer communications apparatus via the second cell, receives a connection release message or a channel release message from the second cell to release the connection, and switches from the second RAT to the first RAT by performing a cell selection procedure or a redirection procedure according to the AFR list to camp on a third cell of the first RAT.

    Abstract translation: 通信装置包括RF信号处理装置，基带信号处理装置和处理器。 处理器控制RF信号处理设备和基带信号处理设备的操作，驻留在第一RAT的第一小区上，在自主快速返回（AFR）中收集第一RAT的一个或多个频率的小区选择/重选参数， 列表，从第一RAT到第二RAT的交换机驻留在第二RAT的第二小区上，经由第二小区建立与对等通信装置的连接，从第二小区接收连接释放消息或信道释放消息到 释放连接，并且通过执行根据AFR列表的小区选择过程或重定向过程从第二RAT切换到第一RAT，以驻留在第一RAT的第三小区上。

    Communication device controlling method
    9.
    发明授权
    Communication device controlling method 有权

    公开(公告)号：US11258897B2

    公开(公告)日：2022-02-22

    申请号：US16661990

    申请日：2019-10-23

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yuan Tsai ,  Wang-Hsin Kuo

    IPC: H04M3/42 ,  H04W76/18 ,  H04W76/27 ,  H04W76/30 ,  H04M7/00 ,  H04W8/18

    Abstract: A communication device controlling method, for controlling a communication device including a first subscriber identification and a second subscriber identification when a process of a data call established with the first subscriber identification is in a suspension, comprising: (a) receiving, by a processor of the communication device, a request to establish a mobile terminated (MT) call with the second subscriber identification; and (b) resuming, by the processor, the process of the data call from the suspension before an instruction of accepting or rejecting the request is received if the MT call is packet-switch based.

    Apparatuses and methods for packet distribution on multiple subscriber identities
    10.
    发明授权
    Apparatuses and methods for packet distribution on multiple subscriber identities 有权

    公开(公告)号：US11202339B2

    公开(公告)日：2021-12-14

    申请号：US16817714

    申请日：2020-03-13

    Applicant: MEDIATEK INC.

    Inventor： Chih-Yuan Tsai ,  Chao-Min Huang ,  Wei-Chiang Peng

    IPC: H04W88/06 ,  H04W48/18 ,  H04W36/14 ,  H04W28/02 ,  H04W28/24 ,  H04W8/18 ,  H04L12/801 ,  H04W76/16

    Abstract: A wireless communication device including a plurality of wireless transceivers and a controller is provided. Each wireless transceiver performs wireless transmission and reception using a respective Radio Access Technology (RAT). The controller enables the wireless transceivers to provide a plurality of wireless connections using a plurality of subscriber identities, and selects a first wireless connection from the plurality of wireless connections for communications between a user device and the wireless communication device. Also, the controller selects a second wireless connection from the plurality of wireless connections according to a service type of a packet flow associated with the user device, for communications between a service network and the wireless communication device, and assigns the second wireless connection for routing packets of the packet flow between the user device and the service network.

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