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    METHOD AND APPARATUS FOR CALIBRATING TRANSCEIVER
    1.
    发明申请
    METHOD AND APPARATUS FOR CALIBRATING TRANSCEIVER 有权

    公开(公告)号：US20250070894A1

    公开(公告)日：2025-02-27

    申请号：US18808063

    申请日：2024-08-18

    Applicant: MEDIATEK INC.

    Inventor： Ming-Chou Wu ,  Edmund, Wen Jen Leong ,  Chiyuan Lu ,  Ting-Che Tseng ,  Zhiming Deng

    IPC: H04B17/14

    Abstract: A calibration apparatus for calibrating a transceiver includes a loop back circuit, an estimation circuit, and a calibration circuit. The loop back circuit is coupled between a mixer output port of a transmitter (Tx) of the transceiver and a mixer input port of a receiver (Rx) of the transceiver, and applies a sequence of different loop gains. The estimation circuit receives a loop back receiving signal that is output from the Rx under the sequence of different loop gains, and generates at least one estimated value of impairment of the transceiver by performing channel estimation according to at least the loop back receiving signal. The calibration circuit performs calibration upon the transceiver according to the at least one estimated value.

    APPARATUS AND METHOD FOR CONTROLLING IMPEDANCE TUNING BY USING HYBRID CONTROL ALGORITHM
    5.
    发明申请
    APPARATUS AND METHOD FOR CONTROLLING IMPEDANCE TUNING BY USING HYBRID CONTROL ALGORITHM 有权
    使用混合控制算法控制阻尼调谐的装置和方法

    公开(公告)号：US20160126904A1

    公开(公告)日：2016-05-05

    申请号：US14854054

    申请日：2015-09-15

    Applicant: Mediatek Inc.

    Inventor： Ting-Hsuan Kuo ,  Qiang Zhou ,  Ming-Chou Wu ,  Paul Cheng Po Liang ,  Bernard Mark Tenbroek

    IPC: H03F1/56 ,  H03F3/21 ,  H04B1/04

    CPC classification number: H03F1/56 ,  H03F3/19 ,  H03F3/245 ,  H03F2200/222 ,  H03F2200/294 ,  H03F2200/387 ,  H04B1/0458 ,  H04B1/18 ,  H04B2001/0416

    Abstract: An impedance tuning control apparatus has a processing circuit and an output circuit. The processing circuit determines a first control setting according to a first performance metric, and performs a search operation with a search start point set by the first control setting to find a second control setting according to a second performance metric. The second performance metric is different from the first performance metric. The output circuit outputs a final control setting to a tuner, wherein the final control setting is derived from the second control setting.

    Abstract translation: 阻抗调谐控制装置具有处理电路和输出电路。 处理电路根据第一性能度量确定第一控制设置，并且利用由第一控制设置设置的搜索开始点执行搜索操作，以根据第二性能度量找到第二控制设置。 第二个性能指标与第一个性能指标不同。 输出电路向调谐器输出最终控制设置，其中最终控制设置是从第二控制设置导出的。

    Detection path design for communication systems
    6.
    发明授权
    Detection path design for communication systems 有权

    公开(公告)号：US10075202B2

    公开(公告)日：2018-09-11

    申请号：US15662728

    申请日：2017-07-28

    Applicant: MEDIATEK INC.

    Inventor： Ming-Chou Wu ,  Dimitris Nalbantis ,  Qiang Zhou ,  Bernard Mark Tenbroek ,  Ting-Hsuan Kuo

    IPC: H04L25/03 ,  H04B1/04 ,  H04B17/19 ,  H04B17/12 ,  H04B17/10 ,  G01R27/06 ,  H04L27/12

    CPC classification number: H04B1/0475 ,  G01R27/06 ,  H04B1/0458 ,  H04B17/103 ,  H04B17/12 ,  H04B17/19 ,  H04L27/12

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    Detection Path Design for Communication Systems
    7.
    发明申请
    Detection Path Design for Communication Systems 审中-公开

    公开(公告)号：US20170331503A1

    公开(公告)日：2017-11-16

    申请号：US15662728

    申请日：2017-07-28

    Applicant: MEDIATEK INC.

    Inventor： Ming-Chou Wu ,  Dimitris Nalbantis ,  Qiang Zhou ,  Bernard Mark Tenbroek ,  Ting-Hsuan Kuo

    IPC: H04B1/04 ,  G01R27/06 ,  H04B17/19 ,  H04B17/12 ,  H04L27/12 ,  H04B17/10

    CPC classification number: H04B1/0475 ,  G01R27/06 ,  H04B1/0458 ,  H04B17/103 ,  H04B17/12 ,  H04B17/19 ,  H04L27/12

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    Detection path design for communication systems
    8.
    发明授权
    Detection path design for communication systems 有权

    公开(公告)号：US09762267B2

    公开(公告)日：2017-09-12

    申请号：US15002089

    申请日：2016-01-20

    Applicant: MEDIATEK INC.

    Inventor： Ming-Chou Wu ,  Dimitris Nalbantis ,  Qiang Zhou ,  Bernard Mark Tenbroek ,  Ting-Hsuan Kuo

    IPC: H04L25/03 ,  H04B1/04 ,  H04L27/12 ,  G01R27/06 ,  H04B17/10 ,  H04B17/12 ,  H04B17/19

    CPC classification number: H04B1/0475 ,  G01R27/06 ,  H04B1/0458 ,  H04B17/103 ,  H04B17/12 ,  H04B17/19 ,  H04L27/12

    Abstract: Methods and apparatus are provided for detection path design for reflection coefficient estimation. In one novel aspect, a hardware-based phase estimator estimates a phase shift between the forward path signal and the reverse path signal. In one embodiment, a data selector is used to pass only signals above a magnitude threshold. In another embodiment, a modified phase unwrap algorithm stores an unwrapping correction for subsequent samples and updates the stored unwrapping correction upon processing of each sample processed. In another novel aspect, mixed hardware and software solutions are used. In one embodiment, the reference signal and the detection signals are matched such that the modulation signal interference is removed. In some embodiments, one or two power detectors and a cross-correlator are used. In yet another embodiment, two detection measurement paths are used to obtain the reflection coefficient. In one embodiment, fractional timing offset is estimated to obtain the reflection coefficient.

    CALIBRATION METHOD FOR WIRELESS COMMUNICATION DEVICE AND ASSOCIATED CALIBRATION APPARATUS
    9.
    发明申请
    CALIBRATION METHOD FOR WIRELESS COMMUNICATION DEVICE AND ASSOCIATED CALIBRATION APPARATUS 审中-公开
    无线通信设备和相关校准设备的校准方法

    公开(公告)号：US20160294490A1

    公开(公告)日：2016-10-06

    申请号：US15015134

    申请日：2016-02-04

    Applicant: MEDIATEK INC.

    Inventor： Qiang Zhou ,  Ming-Chou Wu ,  Ting-Hsuan Kuo ,  Chia-Sheng Peng ,  Bernard Mark Tenbroek

    IPC: H04B17/21

    CPC classification number: H04B17/21 ,  H04B17/14

    Abstract: A calibration method is applied to a wireless communication device having a programmable tuner and a signal processing path. The calibration method includes at least the following steps: configuring the programmable tuner to have a plurality of different tuner states, wherein the signal processing path has a first end and a second end, and the programmable tuner is coupled to the second end; when the programmable tuner is configured to have one of the different tuner states, obtaining a measured reflection coefficient at the first end of the signal processing path; and calibrating mapping relationship between a reflection coefficient at the first end of the signal processing path and a reflection coefficient at the second end of the signal processing path according to the different tuner states and measured reflection coefficients associated with the different tuner states.

    Abstract translation: 校准方法应用于具有可编程调谐器和信号处理路径的无线通信设备。 所述校准方法至少包括以下步骤：将所述可编程调谐器配置为具有多个不同的调谐器状态，其中所述信号处理路径具有第一端和第二端，并且所述可编程调谐器耦合到所述第二端; 当可编程调谐器被配置为具有不同调谐器状态之一时，在信号处理路径的第一端获得测量的反射系数; 以及根据与不同的调谐器状态相关联的不同的调谐器状态和测量的反射系数，校准信号处理路径的第一端的反射系数与信号处理路径的第二端的反射系数之间的映射关系。

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