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公开(公告)号：US10187024B2
公开(公告)日：2019-01-22
申请号：US15488533
申请日：2017-04-17
Applicant: MEDIATEK INC.
Inventor： Hung-Chieh Tsai , Yu-Hsin Lin
Abstract: An amplifier includes an amplifying stage, a cascoded circuit, an input feed-forward circuit and an output stage. The amplifying stage is arranged receiving a differential input pair to generate an amplified differential input pair. The input feed-forward circuit is coupled to the cascoded circuit, and is arranged for feeding the differential input pair forward to the cascoded circuit. The output stage is coupled to the amplifying stage and the cascoded circuit, and is arranged for generating a differential output pair according to the amplified differential input pair and an output of the cascoded circuit.
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公开(公告)号：US08952749B1
公开(公告)日：2015-02-10
申请号：US14038759
申请日：2013-09-27
Applicant: Mediatek Inc.
Inventor： Hung-Chieh Tsai , Chen-Yen Ho , Yu-Hsin Lin
CPC classification number: H03H11/1252 , H03H11/32
Abstract: A filter comprises an integrator, a signal feeding path, a first operational amplifier and a second capacitor. The integrator comprises a first input terminal and a first output terminal. The signal feeding path comprises: a first resistor, having a first terminal coupled to the first output terminal; a first capacitor, having a first terminal coupled to the second terminal of the first resistor; and a second resistor, having a first terminal coupled to the integrator and having a second terminal coupled to the second terminal of the first capacitor. The first operational amplifier comprises a second input terminal coupled to the second terminal of the first resistor and the first terminal of the first capacitor, and comprises a second output terminal. The second capacitor comprises a first terminal coupled to the second terminal of the first capacitor, and comprises a second terminal coupled to the second output terminal.
Abstract translation: 滤波器包括积分器，信号馈送路径，第一运算放大器和第二电容器。 积分器包括第一输入端和第一输出端。 信号馈送路径包括：第一电阻器，具有耦合到第一输出端子的第一端子; 第一电容器，具有耦合到第一电阻器的第二端子的第一端子; 以及第二电阻器，其具有耦合到积分器的第一端子，并具有耦合到第一电容器的第二端子的第二端子。 第一运算放大器包括耦合到第一电阻器的第二端子和第一电容器的第一端子的第二输入端子，并且包括第二输出端子。 第二电容器包括耦合到第一电容器的第二端子的第一端子，并且包括耦合到第二输出端子的第二端子。
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公开(公告)号：US20240114591A1
公开(公告)日：2024-04-04
申请号：US18371549
申请日：2023-09-22
Applicant: Mediatek Inc.
Inventor： Yu-Hsin Lin , Shao-Liang Yeh , Yuan-Chieh Lin
Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE sends a request message to a core network. The request message requests joining one or more requested multicast broadcast service (MBS) sessions. The UE receives a response message from the core network. The response message contains received MBS information indicating one or more admitted MBS sessions. The received MBS information includes a respective IP address type (IPAT) field. The IPAT field indicates a type of an IP address corresponding to each of the one or more admitted MBS sessions. The UE decodes the IP address corresponding to each of the one or more admitted MBS sessions according to the type indicated by the respective IPAT field.
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公开(公告)号：US20240057217A1
公开(公告)日：2024-02-15
申请号：US18220189
申请日：2023-07-10
Applicant: MEDIATEK INC.
Inventor： Yu-Hsin Lin , Chi-Hsien Chen , Yuan-Chieh Lin
Abstract: A method for requesting to join an MBS session via a PDU session establishment procedure for existing PDU or MA PDU session is provided. A UE sends a PDU session establishment request message that includes a requested MBS container IE to request to join an MBS session. The request message initiates a PDU session establishment procedure, with a request type indicating that the PDU session establishment procedure is for an existing PDU session, or for an MA PDU session. A specific request type is used to indicate: 1)HANDOVER 5G PDU SESSION FROM NON-3GPP TO 3GPP; 2) TRANSFER 4G PDN CONNECTION (EPS) TO 5G; 3) TRANSFER 4G PDN CONNECTION (NON-3GPP) TO 5G; 4) ESTABLISH UP RESOURCE OVER 3GPP FOR 5G MA PDU; and 5) TRANSFER MA PDU (PDN LEG IN EPS) TO 5G MA PDU.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20240056900A1
公开(公告)日：2024-02-15
申请号：US18224690
申请日：2023-07-21
Applicant: MEDIATEK INC.
Inventor： Yu-Hsin Lin , Yuan-Chieh Lin , Chi-Hsien Chen
CPC classification number: H04W36/0007 , H04W36/0022 , H04W76/30
Abstract: A method for maintaining MBS session when UE performs intersystem change is provided. UE maintains a PDU session in 5G network. UE then joins an MBS session for receiving MBS service over the associated PDU session. Later on, UE performs intersystem change from 5G to 2/3/4G. The PDU session is then released or transferred to a PDN connection. From UE perspective, UE determines that the released or transferred PDU session is associated with the MBS session, and therefore locally leaves the MBS session. From NW perspective, NW determines that the released or transferred PDU session is associated with the MBS session, and therefore considers the UE is removed from the MBS session.
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公开(公告)号：US20240056883A1
公开(公告)日：2024-02-15
申请号：US18225063
申请日：2023-07-21
Applicant: MEDIATEK INC.
Inventor： Yu-Hsin Lin , Bo-Hun Chen , Yuna-Chieh Lin
CPC classification number: H04W28/0289 , H04W28/0268 , H04W28/0908
Abstract: In 5GS, Single-Network Slice Selection Assistance Information (S-NSSAI) based backoff (BO) timers (T3585) can be applied to either 3GPP access or non-3GPP access or both access based on a 5GSM congestion re-attempt indicator. When UE receives a 5GSM message over a specific access, UE needs to handle a current running timer. In one novel aspect, it is proposed that the UE stops the running timer applied for the same access which the message is received, and also stops the running timer applied for both access types. In another novel aspect, it is proposed that the UE stops the running timer applied for the access different from the access which the message is received when the UE starts a new timer applied for both access types.
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18.发明公开公开(公告)号：US20240040459A1
公开(公告)日：2024-02-01
申请号：US18218099
申请日：2023-07-04
Applicant: MEDIATEK INC.
Inventor： Yuan-Chieh Lin , Yung-Chun Yang , Yu-Hsin Lin
CPC classification number: H04W36/14 , H04W36/00222
Abstract: A method of performing intersystem change without N26 interface supported or not supported when a UE is registered to the same or different networks over 3GPP and non-3GPP accesses is proposed. UE registers to one or more PLMN/SNPN over 3GPP access and non-3GPP access. UE receives a REGISTRATION ACCEPT message over 3GPP access, which carries a first 5GS network feature support IE, which indicates that interworking without N26 interface not supported. UE also receives a REGISTRATION ACCEPT message over non-3GPP access, which carries a second 5GS network feature support IE, which indicates that interworking without N26 interface supported. UE ignores the second indication received over non-3GPP access and considers that N26 interface is supported for interworking. As a result, after intersystem change from 5G to 4G, UE triggers a TAU procedure over LTE in 4G EPS.
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公开(公告)号：US20230362866A1
公开(公告)日：2023-11-09
申请号：US18137308
申请日：2023-04-20
Applicant: MEDIATEK INC.
Inventor： Yu-Hsin Lin , Yuan-Chieh Lin
IPC: H04W60/06
CPC classification number: H04W60/06
Abstract: A method of NAS signaling connection handling when a UE initiates a de-registration or detach procedure to perform network selection is proposed. To allow the UE to perform PLMN selection, the UE needs to be in idle mode. Upon the completion of a UE-initiated de-registration or detach procedure, the UE starts a guard timer, e.g., T3540/T3440. In one example, the UE starts a guard timer upon receiving a de-registration accept message. In another example, the UE starts a guard timer upon receiving a detach accept message. The UE will locally release any NAS signaling connection upon the guard timer expiry so that the UE can enter idle mode and perform PLMN selection.
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公开(公告)号：US11509221B2
公开(公告)日：2022-11-22
申请号：US17021840
申请日：2020-09-15
Applicant: MediaTek Inc.
Inventor： Yueh-Min Chen , Yu-Hsin Lin
Abstract: Direct current-direct current (DC-DC) converters including buck converters are described. These DC-DC converters may be configured to reduce oscillations that would otherwise arise in the output reference voltage due to ringing effects without significantly lengthening the duration of the transient period. These DC converters may leverage a feedback voltage generated by sensing the current flowing through the inductor of the buck converter. The feedback voltage may compared to a threshold, and the signal resulting from the comparison may be used to vary the reference voltage. The DC-DC converter may be operated in a “partial reset mode,” in which the voltage generated by sensing the inductor's current is reduced to a value greater than zero in response to the feedback voltage reaching the threshold. Reducing the sense voltage in this manner may reduce the duration of the transient period.
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