公开(公告)号：US20240244468A1

公开(公告)日：2024-07-18

申请号：US18409854

申请日：2024-01-11

Applicant: MediaTek Inc.

Inventor： Shuling Feng ,  Tsung-Han Tsai ,  Jianhan Liu ,  Thomas Edward Pare, Jr.

IPC: H04W24/10 ,  H04B17/309

CPC classification number: H04W24/10 ,  H04B17/346

Abstract: Techniques pertaining to wireless local area network (WLAN) sensing measurement report regarding receive (Rx) signal-to-noise ratio (SNR) in wireless communications are described. A sensing receiver is configured to perform a sensing measurement and generate a sensing measurement report. The sensing measurement report includes an Rx_SNR subfield indicating a Rx signal quality used in a channel state information (CSI) estimation.

公开(公告)号：US20240155402A1

公开(公告)日：2024-05-09

申请号：US18501047

申请日：2023-11-03

Applicant: MEDIATEK INC.

Inventor： Tsung-Han Tsai ,  Hsuan-Yu Liu ,  Shuling Feng

IPC: H04W24/10 ,  H04L5/00 ,  H04W48/16

CPC classification number: H04W24/10 ,  H04L5/0048 ,  H04W48/16

Abstract: One wireless sensing method includes: generating a measurement request frame, wherein the measurement request frame is configured to carry indication information for phase report from a sensing responder, and sending the measurement request frame to the sensing responder. Another wireless sensing method includes: generating a measurement report frame, wherein the measurement report frame is configured to carry phase information, and sending the measurement report frame to a sensing initiator.

公开(公告)号：US20240151845A1

公开(公告)日：2024-05-09

申请号：US18226616

申请日：2023-07-26

Applicant: MEDIATEK INC.

Inventor： Shuling Feng ,  Jianhan Liu ,  Thomas Edward Pare, JR. ,  Tsung-Han Tsai

IPC: G01S13/76 ,  H04L25/02 ,  H04W24/10

CPC classification number: G01S13/765 ,  H04L25/022 ,  H04W24/10 ,  H04W84/12

Abstract: Embodiments of the present invention provide methods and devices for performing wireless sensing operations that can accommodate different Rx frequency responses with minimum PHY changes to increase the performance and reliability of wireless sensing in wireless local area network (WLAN) networks. Rx frequency response information can be obtained as channel state information (CSI) in a loopback test and can further be normalized with the total gain in the receiver chain leading to CSI estimation. Moreover, different Rx frequency responses can be categorized into limited groups with underlying circuit conditions based on their frequency response variations. The different Rx frequency responses can be indicated in subfields of a CSI report transmitted to the sensing initiator for performing sensing operations with the sensing responder.

公开(公告)号：US20230422070A1

公开(公告)日：2023-12-28

申请号：US18211749

申请日：2023-06-20

Applicant: MediaTek Inc.

Inventor： Shuling Feng ,  Jianhan Liu ,  Thomas Edward Pare, JR. ,  Tsung-Han Tsai

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04W84/12

Abstract: Techniques pertaining to further indication for WLAN sensing measurement report in wireless communications are described. A sensing receiver is configured to perform a sensing measurement and generate a sensing measurement report indicating channel state information (CSI) according to the sensing measurement. The sensing measurement report further indicates one or more categories of a frequency response of the sensing receiver without indicating any gain setting of the sensing receiver. The sensing receiver is also configured to transmit, as a sensing responder, the sensing measurement report to a sensing initiator.

公开(公告)号：US09231531B2

公开(公告)日：2016-01-05

申请号：US14165777

申请日：2014-01-28

Applicant: MediaTek Inc.

Inventor： Tsung-Han Tsai ,  Shin-Fu Chen

IPC: H03F1/32 ,  H03F3/24 ,  H04B1/04 ,  H03F3/195

CPC classification number: H03F1/3247 ,  H03F1/3241 ,  H03F3/195 ,  H03F3/24 ,  H03F2200/465 ,  H03F2201/3227 ,  H04B1/0475 ,  H04B2001/0425

Abstract: A communication system is provided. The communication system includes an antenna, a power amplifier, a detector and a signal-processing module. The power amplifier provides an output signal to the antenna according to an input signal. The detector provides power information and voltage information according to the output signal. The signal-processing module obtains a loading variation according to the power information and the voltage information, and provides the input signal according to the loading variation. When the loading variation exceeds a threshold value, the signal-processing module performs a digital pre-distortion calibration for the input signal.

Abstract translation: 提供通信系统。 通信系统包括天线，功率放大器，检测器和信号处理模块。 功率放大器根据输入信号向天线提供输出信号。 检测器根据输出信号提供电源信息和电压信息。 信号处理模块根据功率信息和电压信息获得负载变化，并根据负载变化提供输入信号。 当负载变化超过阈值时，信号处理模块对输入信号进行数字预失真校准。

公开(公告)号：US12107649B2

公开(公告)日：2024-10-01

申请号：US17550104

申请日：2021-12-14

Applicant: MEDIATEK INC.

Inventor： Chao-Peng Wang ,  Tsung-Han Tsai ,  Shun-Yong Huang

IPC: H04B7/06 ,  H04B1/10 ,  H04W28/06

CPC classification number: H04B7/0626 ,  H04B1/10 ,  H04W28/06

Abstract: A device is provided, which includes one or more antennas and a circuit. The circuit is configured to receive a packet from a transmitter device through the antennas, and obtain channel-state information from the received packet. The circuit includes one or more filters to filter out or recognize the received packet that complies with one or more preset conditions. The circuit uses the channel-state information of the received packet, which complies with the one or more preset conditions, to estimate a status of a channel between the transmitter device and the device.