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公开(公告)号：US20190223246A1
公开(公告)日：2019-07-18
申请号：US16244259
申请日：2019-01-10
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Pan-Yen Chiang , Marko Niemi , Yuan-Chieh Lin
Abstract: A method of maintaining a proper forbidden tracking area identifier (TAI) list is proposed. A UE receives a service area list comprising one or more allowed tracking areas. The service area list may be carried by a configuration update command. UE compares if any of the allowed tracking area having a matching TAI in the forbidden TAI list. Accordingly, UE removes any allowed tracking areas having a matching TAI from the forbidden TAI list. In one embodiment, UE sends a REGISTERATION REQUEST message to initiate a registration procedure. In response, UE receives a REGISTRATION ACCEPT message, which may also carry a service area list. UE may remove the allowed tracking area having a matching TAI from the forbidden TAI list. However, if UE is registered for emergency services, then UE shall not remove the allowed tracking area from the forbidden TAI list.
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公开(公告)号：US10034325B2
公开(公告)日：2018-07-24
申请号：US15273921
申请日：2016-09-23
Applicant: MEDIATEK INC.
Inventor： Yuan-Chieh Lin , Chien-Chun Huang-Fu , Yu-Syuan Jheng , Marko Niemi , Chi-Hsien Chen
CPC classification number: H04W76/18 , H04W28/0289 , H04W48/06 , H04W52/0209 , Y02D70/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262
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). 3GPP introduces multiple backoff timers and barring to solve network congestion problem. However, a TE does not know the timer value and the barring status. In accordance with one novel aspect, a new AT command interface that can respond timer value and barring status to the TE is proposed. It reduces wasteful retries and saves power consumption of the TE. Through the new AT command interface, the TE can query backoff timer status. Via unsolicited result code (URC), the MT can detect backoff timer status change and report updated backoff timer status to the TE.
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公开(公告)号：US20230134052A1
公开(公告)日：2023-05-04
申请号：US18148410
申请日：2022-12-29
Applicant: MEDIATEK INC.
Inventor： Yucheng Huang , Chun Hsu , Cheng-Yu Chen , Marko Niemi
Abstract: Methods and apparatus are provided for EPS fallback status report by the modem to the upper layers. In one embodiment, the mobile terminal (MT) initiates a 5G voice call, detects an EPSFB triggered by the wireless network, identifies one or more EPSFB status and sends one or more EPSFB status indicators to at least one upper layer based on the identified one or more EPSFB status. In one embodiment, the EPS fall back is a redirection procedure. In another embodiment, the EPS fallback is a handover procedure. In yet another embodiment, the one or more EPSFB status indictors comprising a redirection to EPS started indicator, a handover to EPS started indicator, a redirection to EPS failed indicator, a handover to EPS failed indicator, a redirection to EPS success indicator, and a handover to EPS success indicator. In one embodiment, the MT sends EPSFB status indicators using AT command.
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公开(公告)号：US11071043B2
公开(公告)日：2021-07-20
申请号：US16408729
申请日：2019-05-10
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Marko Niemi
IPC: H04W84/04 , H04W8/20 , H04W60/00 , H04W48/18 , H04W48/04 , H04W8/24 , H04W76/25 , H04W12/122 , H04W60/04 , H04W48/02
Abstract: A method of enhanced handling of a Forbidden Public Land Mobile Network (PLMN) list is proposed. When a UE tries to attach to a PLMN and receives an ATTACH Reject message having no integrity protection, it could be transmitted from a network entity trying to block the PLMN for providing service. Therefore, by introducing a temporary forbidden PLMN list and a timer T3247, UE can avoid adding the PLMN ID to the Forbidden PLMN list and avoid being blocked for network access. Instead, UE is only temporary refrained from selecting the PLMN ID and is able to retry for the network access after T3247 expiry. The temporary list together with T3247 mechanism thus gives UE more opportunity to try with the same PLMN ID at a different time and/or a different UE location, where the malicious blocking is no longer available.
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公开(公告)号：US10917838B2
公开(公告)日：2021-02-09
申请号：US16407403
申请日：2019-05-09
Applicant: MediaTek Inc.
Inventor： Chien-Chun Huang-Fu , Marko Niemi
Abstract: Various examples pertaining to handling of Public Land Mobile Network (PLMN)-specific attempt counter in mobile communications are described. An apparatus (e.g., user equipment) detects an occurrence of a predefined condition. In response to the detecting, the apparatus performs certain operations, including: (i) adding a visited Public Land Mobile Network (VPLMN) identification (ID) to a list of one or more forbidden PLMNs stored in a storage device, (ii) removing the VPLMN ID from a list of extension of forbidden PLMNs stored in the storage device; and (iii) resetting a PLMN-specific attempt counter specific to the PLMN ID to zero.
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Patent Agency Ranking
公开(公告)号：US10660058B2
公开(公告)日：2020-05-19
申请号：US16366063
申请日：2019-03-27
Applicant: MediaTek Inc.
Inventor： Yu-Cheng Huang , Chien-Chun Huang-Fu , Marko Niemi
IPC: H04W4/00 , H04W60/06 , H04W24/10 , H04W60/02 , H04W76/18 , H04L12/66 , H04W8/24 , H04L12/00 , H04W36/00
Abstract: Various solutions for avoiding circuit-switched call drop with respect to user equipment and network apparatus in mobile communications are described. An apparatus transmits a non-access stratum (NAS) message in a NAS signaling connection. The apparatus receives a NAS response message. The apparatus initiates a timer to control the NAS signaling connection. The apparatus further receives a circuit-switched (CS) service notification. The apparatus then stops the timer and execute a CS service procedure.
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公开(公告)号：US20190254089A1
公开(公告)日：2019-08-15
申请号：US16274993
申请日：2019-02-13
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Marko Niemi
CPC classification number: H04W76/12 , H04W36/0016 , H04W36/14 , H04W76/32 , H04W84/042
Abstract: Aspects of the disclosure can provide an apparatus and method for communicating with core network of a fifth generation system. The method includes transmitting, by a processing circuitry of a user equipment, a non-access stratum transport message to the core network to initiate a non-access stratum transport procedure with the core network, and receiving an indication message from the core network when a network function of the core network is unable to process the non-access stratum transport message, wherein the indication message includes at least one of a payload type, a cause value, and timer information. When the payload type of the indication message is a fifth generation system session management message, a short message service message or a long term evolution positioning protocol message, the processing circuitry of the user equipment performs at least one of: re-initiating a non-access stratum transport procedure based on timer information, aborting the non-access stratum transport procedure, and releasing a protocol data unit session.
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公开(公告)号：US09756568B2
公开(公告)日：2017-09-05
申请号：US15273886
申请日：2016-09-23
Applicant: MEDIATEK INC.
Inventor： Chien-Chun Huang-Fu , Yuan-Chieh Lin , Marko Niemi , Yu-Syuan Jheng
CPC classification number: H04W52/0229 , H04W28/06 , H04W28/12 , H04W76/00 , Y02D70/1224 , Y02D70/1242 , Y02D70/1262
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). 3GPP introduces multiple backoff timers and barring to solve network congestion problem. However, a TE does not know the timer value and the barring status. In accordance with one novel aspect, a new AT command interface that can respond timer value and barring status to the TE is proposed. It reduces wasteful retries and saves power consumption of the TE. Through the new AT command interface, the TE can query backoff timer status. Via unsolicited result code (URC), the MT can detect backoff timer status change and report updated backoff timer status to the TE.
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公开(公告)号：US11570679B2
公开(公告)日：2023-01-31
申请号：US16890181
申请日：2020-06-02
Applicant: MEDIATEK INC.
Inventor： Yucheng Huang , Chun Hsu , Cheng-Yu Chen , Marko Niemi
Abstract: Methods and apparatus are provided for EPS fallback status report by the modem to the upper layers. In one embodiment, the mobile terminal (MT) initiates a 5G voice call, detects an EPSFB triggered by the wireless network, identifies one or more EPSFB status and sends one or more EPSFB status indicators to at least one upper layer based on the identified one or more EPSFB status. In one embodiment, the EPS fall back is a redirection procedure. In another embodiment, the EPS fallback is a handover procedure. In yet another embodiment, the one or more EPSFB status indictors comprising a redirection to EPS started indicator, a handover to EPS started indicator, a redirection to EPS failed indicator, a handover to EPS failed indicator, a redirection to EPS success indicator, and a handover to EPS success indicator. In one embodiment, the MT sends EPSFB status indicators using AT command.
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公开(公告)号：US20220240210A1
公开(公告)日：2022-07-28
申请号：US17559028
申请日：2021-12-22
Applicant: MEDIATEK INC.
Inventor： Chia-Lin Lai , Yuan-Chieh Lin , Chien-Chun Huang-Fu , Guillaume Sebire , Marko Niemi
Abstract: A method to facilitate onboarding registration via an onboarding network (ON) that is a stand-alone non-public network (ON-SNPN) is proposed. A UE is preconfigured with default UE credentials for Onboarding. UE discovers and selects an ON-SNPN and registers to the ON-SNPN using default UE credentials. Both user plane (UP) and control plane (CP) provisioning procedure can be used to obtain the SNPN credentials from a subscriber owner (SO) via an ON-SNPN access connectivity. In accordance with one novel aspect, when UE sends a registration request for UE onboarding registration, the registration request comprises information for registration type (e.g., SNPN ONBOARDING), and UE supported provisioning procedure (e.g., CP, UP, or both). Upon successful registration, UE follows the supported provisioning procedure (i.e., CP or UP) decided by the ON-SNPN to obtain the SNPN credentials from the SO-SNPN via the ON-SNPN access connectivity to a Provisioning Server (PVS).
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