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公开(公告)号：US09332460B2
公开(公告)日：2016-05-03
申请号：US14039189
申请日：2013-09-27
Applicant: MediaTek Inc.
Inventor： Chi-Chen Lee , Hung-Yueh Chen
CPC classification number: H04W36/0022 , H04W36/00 , H04W48/16 , H04W76/16
Abstract: The method and apparatus for CSFB are provided. The method includes transmitting a MO CS request to a LTE network or receiving a MT CS call notification from a LTE network; triggering or accepting a CSFB procedure by the UE; receiving redirection information from the LTE network; judging whether system information corresponding to candidate cells is provided in the redirection information; acquiring system information corresponding to candidate cells, wherein the system information includes location area identifications (LAI) corresponding to candidate cells in the redirection information to determine whether the candidate cells belong to a registered LA; setting the candidate cell belonging to the registered LA to a higher priority; selecting the candidate cell with the higher priority as a target cell; and connecting to the target cell first.
Abstract translation: 提供了CSFB的方法和装置。 该方法包括向LTE网络发送MO CS请求或从LTE网络接收MT CS呼叫通知; 触发或接受UE的CSFB过程; 从LTE网络接收重定向信息; 判断是否在重定向信息中提供与候选小区相对应的系统信息; 获取对应于候选小区的系统信息，其中所述系统信息包括与所述重定向信息中的候选小区相对应的位置区域标识（LAI），以确定所述候选小区是否属于已登记的LA; 将属于注册的LA的候选小区设置为较高优先级; 选择具有较高优先级的候选小区作为目标小区; 并首先连接到目标单元。
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公开(公告)号：US10721617B2
公开(公告)日：2020-07-21
申请号：US16274239
申请日：2019-02-13
Applicant: MEDIATEK INC.
Inventor： Chi-Chen Lee , Yu-Ting Yao , Ching-Yueh Kao
Abstract: To facilitate LWA PDCP setting/scheduling, a method of providing dynamic PDCP status report polling is proposed. To enhance scheduling efficiency, the transmitter (can be eNB from DL or UE for UL) can dynamically poll PDCP status report for LWA behavior. The polling can be done by a standalone PDCP control PDU or use reserved bit in PDCP data PDU. The triggering condition for PDCP status polling includes: PDCP without poll time exceeds a first threshold, PDCP without poll bytes exceeds a second threshold, PDCP without poll PDU numbers exceeds a third threshold, a data buffer is empty, and when LWA is deactivated.
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公开(公告)号：US10567447B2
公开(公告)日：2020-02-18
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
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.
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公开(公告)号：US10433368B2
公开(公告)日：2019-10-01
申请号：US14944453
申请日：2015-11-18
Applicant: MediaTek Inc.
Inventor： Shih-Hsin Chien , Chi-Chen Lee , Wen-Jiunn Liu , Ching-Yueh Kao , Shih-Chieh Liao , Yu-Tien Yeh , Sian-Jheng Wong , Tien-Yi Huang
Abstract: A communications apparatus includes a radio transceiver and a processor. The radio transceiver is configured for transmitting or receiving wireless radio frequency signals to or from a peer device. The processor determines whether re-synchronization in a communication mode with the peer device is required according to a determination rule. When the re-synchronization is required, the processor transmits a message to the peer device via the radio transceiver to trigger a re-synchronization procedure. The processor determines whether the re-synchronization is required in a connected mode.
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Patent Agency Ranking
公开(公告)号：US10251052B2
公开(公告)日：2019-04-02
申请号：US15247176
申请日：2016-08-25
Applicant: MEDIATEK INC.
Inventor： Chi-Chen Lee , Yu-Ting Yao , Ching-Yueh Kao
Abstract: To facilitate LWA PDCP setting/scheduling, a method of providing dynamic PDCP status report polling is proposed. To enhance scheduling efficiency, the transmitter (can be eNB from DL or UE for UL) can dynamically poll PDCP status report for LWA behavior. The polling can be done by a standalone PDCP control PDU or use reserved bit in PDCP data PDU. The triggering condition for PDCP status polling includes: PDCP without poll time exceeds a first threshold, PDCP without poll bytes exceeds a second threshold, PDCP without poll PDU numbers exceeds a third threshold, a data buffer is empty, and when LWA is deactivated.
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公开(公告)号：US10028243B2
公开(公告)日：2018-07-17
申请号：US15355429
申请日：2016-11-18
Applicant: MEDIATEK INC.
Inventor： Shih-Chieh Liao , Chi-Chen Lee
Abstract: Aspects of the disclosure provide a method for setting up a call for a user equipment. The method includes receiving, by the user equipment, a measurement configuration message that specifies a set of measurement events corresponding to poor signal quality between the user equipment and a packet-switched network, and sending, by the user equipment, a measurement report when one of the set of measurement events occurs while performing a first call setup process for setting up the call using the packet-switched network. The method also includes terminating the first call setup process after sending the measurement report that indicates poor signal quality between the user equipment and the packet-switched network, and sending, by the user equipment, a service request to begin a second call setup process for setting up the call for the user equipment using a circuit-switched network after terminating the first call setup process.
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27.发明申请公开(公告)号：US20180013500A1
公开(公告)日：2018-01-11
申请号：US15642341
申请日：2017-07-06
Applicant: MediaTek Inc.
Inventor： Shih-Chieh Liao , Chung-Wei Wang , Chi-Chen Lee
CPC classification number: H04W68/02 , H04B15/00 , H04J11/0023 , H04W16/14 , H04W24/08 , H04W24/10 , H04W36/22 , H04W48/12 , H04W48/16 , H04W76/15 , H04W76/27 , H04W84/042 , H04W84/12 , H04W88/02
Abstract: Concepts and examples pertaining to mitigation of coexistence interference and concurrent operations of different RF technologies are described. A processor of a network node receives a message from a user equipment (UE) using a first radio access technology (RAT). The message includes one or more information fields indicating one or more of following pieces of information regarding in-device coexistence interference experienced by the UE: an affected carrier and a range of each of one or more other RATs different from the first RAT including at least a second RAT, a suggested transmit or receive power of the UE in a first communication cell of the first RAT, and a suggested receive power of the UE in a second communication cell of the second RAT. In response to receiving the message, the processor adjusts one or more aspects of either or both of the first and the second communication cells.
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28.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
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。
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公开(公告)号：US08818280B2
公开(公告)日：2014-08-26
申请号：US14101040
申请日：2013-12-09
Applicant: Mediatek, Inc.
Inventor： Li-Chun Ko , Hong-Kai Hsu , I-Kang Fu , Chi-Chen Lee
CPC classification number: H04W72/04 , H04M1/7253 , H04W72/1215 , H04W88/06 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146
Abstract: A method of scheduling transmitting and receiving communication slots for co-located radio devices is provided. A Bluetooth (BT) device first synchronizes its communication time slots with a co-located radio module, and then obtains the traffic pattern of the co-located radio module. Based on the traffic pattern, the BT device selectively skips one or more TX or RX time slots to avoid data transmission or reception in certain time slots and thereby reducing interference with the co-located radio module. In addition, the BT device generates a co-located coexistence (CLC) bitmap and transmits the CLC bitmap to its peer BT device such that the peer BT device can also skip data transmission or reception in certain time slots affected by the co-located radio module. The skipped time slots are disabled for TX or RX operation to prevent interference and to achieve more energy saving.
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