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公开(公告)号：US09986430B2
公开(公告)日：2018-05-29
申请号：US15821937
申请日：2017-11-24
Applicant: MediaTek Inc.
Inventor： Shih-Chieh Liao , Chun-Pin Chen , Tsung-Liang Lu
IPC: H04M1/66 , H04W12/02 , H04W76/04 , H04W76/02 , H04W8/18 , H04W36/00 , H04W24/02 , H04W24/10 , G06F21/74 , H04W4/02
CPC classification number: H04W12/02 , G06F21/74 , G06F2221/2111 , H04W4/025 , H04W8/18 , H04W24/02 , H04W24/10 , H04W36/0088 , H04W76/18 , H04W76/19 , H04W76/27
Abstract: A mobile communication device for avoiding location exposure in a User Equipment (UE) information procedure includes a wireless transceiver, configured to perform wireless transmission and reception to and from a service network. The device also includes a controller, configured to determine whether a Radio Resource Control (RRC) security has been activated between the mobile communication device and the service network, and in response to the RRC security not having been activated and location information of the mobile communication device being present, send a first measurement report without the location information of the mobile communication device to the service network via the wireless transceiver or does not send a second measurement report comprising the location information of the mobile communication device; to the service network via the wireless transceiver after receiving measurement configuration message.
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公开(公告)号：US09860743B2
公开(公告)日：2018-01-02
申请号：US15254121
申请日：2016-09-01
Applicant: MediaTek Inc.
Inventor： Shih-Chieh Liao , Chun-Pin Chen , Tsung-Liang Lu
IPC: H04M1/66 , H04W12/02 , H04W24/10 , H04W36/00 , H04W8/18 , H04W24/02 , H04W76/02 , H04W76/04 , H04W4/02
CPC classification number: H04W12/02 , G06F21/74 , G06F2221/2111 , H04W4/025 , H04W8/18 , H04W24/02 , H04W24/10 , H04W36/0088 , H04W76/18 , H04W76/19 , 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 whether a Radio Resource Control (RRC) security has been activated between the mobile communication device and the service network when receiving measurement configuration from the service network via the wireless transceiver. In response to the RRC security not having been activated and location information of the mobile communication device being present, the controller sends a first measurement report not including the location information of the mobile communication device to the service network via the wireless transceiver, or the controller does not send a second measurement report including the location information of the mobile communication device to the service network via the wireless transceiver.
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公开(公告)号：US20210258779A1
公开(公告)日：2021-08-19
申请号：US16790762
申请日：2020-02-14
Applicant: MEDIATEK INC.
Inventor： Yu-Lun Chang , Shih-Chieh Liao
Abstract: A communications apparatus includes a transceiver and a processor. The processor is configured to perform operations comprising: performing a Non Access Stratum (NAS) security mode command procedure to derive a set of NAS key(s); transmitting a NAS security mode complete message to a network device for informing that the NAS security mode command procedure is complete; receiving an RRCReconfiguration message indicating derivation of a set of Access Stratum (AS) keys from the network device when an acknowledge message associated with the NAS security mode complete message has not been received; and performing a NAS procedure to communicate with the network device by using the set of NAS key(s).
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公开(公告)号：US10341394B2
公开(公告)日：2019-07-02
申请号：US15996720
申请日：2018-06-04
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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5.发明授权公开(公告)号：US10979975B2
公开(公告)日：2021-04-13
申请号：US16228645
申请日：2018-12-20
Applicant: MediaTek Inc.
Inventor： Jia-Shi Lin , Chin-Wei Hsu , Yu-Ting Yao , Shih-Chieh Liao
Abstract: Various solutions for maintaining a radio resource control (RRC) connection with respect to user equipment and network apparatus in mobile communications are described. An apparatus may establish an RRC connection with a network node. The apparatus may transmit a layer 2 packet to maintain the RRC connection after a period of time without data transmission. The apparatus may transmit uplink data via the RRC connection without re-establishing the RRC connection.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20190200292A1
公开(公告)日：2019-06-27
申请号：US16228645
申请日：2018-12-20
Applicant: MediaTek Inc.
Inventor： Jia-Shi Lin , Chin-Wei Hsu , Yu-Ting Yao , Shih-Chieh Liao
CPC classification number: H04W52/0216 , H04W72/048 , H04W72/085 , H04W76/19 , H04W76/22
Abstract: Various solutions for maintaining a radio resource control (RRC) connection with respect to user equipment and network apparatus in mobile communications are described. An apparatus may establish an RRC connection with a network node. The apparatus may transmit a layer 2 packet to maintain the RRC connection after a period of time without data transmission. The apparatus may transmit uplink data via the RRC connection without re-establishing the RRC connection.
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公开(公告)号：US09788208B2
公开(公告)日：2017-10-10
申请号：US14986230
申请日：2015-12-31
Applicant: MediaTek Inc.
Inventor： Shih-Chieh Liao , Tuan-Che Chen
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.
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8.发明申请公开(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
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。
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公开(公告)号：US11310661B2
公开(公告)日：2022-04-19
申请号：US16790762
申请日：2020-02-14
Applicant: MEDIATEK INC.
Inventor： Yu-Lun Chang , Shih-Chieh Liao
Abstract: A communications apparatus includes a transceiver and a processor. The processor is configured to perform operations comprising: performing a Non Access Stratum (NAS) security mode command procedure to derive a set of NAS key(s); transmitting a NAS security mode complete message to a network device for informing that the NAS security mode command procedure is complete; receiving an RRCReconfiguration message indicating derivation of a set of Access Stratum (AS) keys from the network device when an acknowledge message associated with the NAS security mode complete message has not been received; and performing a NAS procedure to communicate with the network device by using the set of NAS key(s).
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公开(公告)号：US20180343689A1
公开(公告)日：2018-11-29
申请号：US15989880
申请日：2018-05-25
Applicant: MediaTek Inc.
Inventor： Meng-Hau Wu , Shih-Chieh Liao , Tsan-Kuang Su
Abstract: Various solutions for problem cell handling with respect to user equipment in mobile communications are described. An apparatus may transmit user equipment (UE) capability information to a cell. The apparatus may determine the cell as a problem cell in response to no service received from the cell. The apparatus may reduce a size of the UE capability information. The apparatus may further transmit the reduced UE capability information to the problem cell.
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