公开(公告)号：US20200287574A1

公开(公告)日：2020-09-10

申请号：US16776513

申请日：2020-01-30

Applicant: MEDIATEK INC.

Inventor： Chieh-Hsun Hsiao ,  Ming-Chou Wu ,  Wen-Chang Lee ,  Narayanan Baskaran ,  Wei-Hsin Tseng ,  Jenwei Ko ,  Po-Sen Tseng ,  Hsin-Hung Chen ,  Chih-Yuan Lin ,  Caiyi Wang

IPC: H04B1/00

Abstract: A transmission interface between at least a master module and a slave module is proposed. The transmission interface includes a predetermined number of physical transmission medium(s). Each physical transmission medium is arranged to carry a multiplexed signal in which at least two signals are integrated, and the predetermined number is not smaller than a number of intermediate frequency (IF) stream(s) to be transmitted.

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。