公开(公告)号：US20160211870A1

公开(公告)日：2016-07-21

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: H04B1/04 ,  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.

Abstract translation: 提供了用于反射系数估计的检测路径设计的方法和装置。 在一个新颖的方面，基于硬件的相位估计器估计正向路径信号和反向路径信号之间的相移。 在一个实施例中，使用数据选择器仅传递高于幅度阈值的信号。 在另一个实施例中，修改的相位展开算法存储用于后续采样的展开校正，并且在处理每个被处理样本的处理时更新存储的展开校正。 在另一个新颖的方面，使用混合的硬件和软件解决方案。 在一个实施例中，参考信号和检测信号被匹配，使得调制信号干扰被去除。 在一些实施例中，使用一个或两个功率检测器和互相关器。 在另一个实施例中，使用两个检测测量路径来获得反射系数。 在一个实施例中，估计分数定时偏移以获得反射系数。

公开(公告)号：US09654059B2

公开(公告)日：2017-05-16

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: H04B1/04 ,  H03F1/56 ,  H03F3/19 ,  H03F3/24 ,  H04B1/18 ,  H04B1/034

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.

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。

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.

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.

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.

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。