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    WIRELESS RANGING WITH BW320 BASED ON EHT FORMAT
    3.
    发明公开
    WIRELESS RANGING WITH BW320 BASED ON EHT FORMAT 审中-公开

    公开(公告)号：US20240049157A1

    公开(公告)日：2024-02-08

    申请号：US18210549

    申请日：2023-06-15

    Applicant: MEDIATEK INC.

    Inventor： Shuling Feng ,  Jianhan Liu ,  Thomas Edward Pare, JR.

    IPC: H04W56/00

    CPC classification number: H04W56/0065 ,  H04W84/12

    Abstract: Embodiments of the present invention are drawn to systems, apparatus and methods that perform wireless ranging procedures using EHT frames supporting large bandwidth transmission. Moreover, ranging specifications are expanded for the EHT frame format in order to support BW320 ranging with improved performance and accuracy. Embodiments of the present invention support high-bandwidth BW320 and BW240 wireless ranging using a EHT frame format and support 802.11az ranging using a high efficiency (HE) for 802.11be devices. Long training field (LTF) repetition features and security features are also described for EHT-LTFs, and signaling of preamble puncturing patterns are defined for 320 MHz physical layer protocol data units (PPDUs) carried in the U-SIG field and in Trigger Frames to improve spectrum efficiency and reduce interference, according to embodiments.

    COMMUNICATION UNIT AND METHOD FOR DETERMINING AND/OR COMPENSATING FOR FREQUENCY DEPENDENT QUADRATURE MISMATCH
    5.
    发明申请
    COMMUNICATION UNIT AND METHOD FOR DETERMINING AND/OR COMPENSATING FOR FREQUENCY DEPENDENT QUADRATURE MISMATCH 有权
    通信单元和用于确定和/或补偿频率依赖正交错误的通信单元和方法

    公开(公告)号：US20160006632A1

    公开(公告)日：2016-01-07

    申请号：US14324258

    申请日：2014-07-07

    Applicant: Mediatek Inc.

    Inventor： Kuo-Hao Chen ,  Chun-Hao Liao ,  KIRAN ULN ,  Shuling Feng

    IPC: H04L12/26

    CPC classification number: H04L27/2089 ,  H04L5/0023 ,  H04L27/2646 ,  H04L27/364

    Abstract: A communication unit includes: a quadrature transmitter having analog transmit filter(s) for filtering a first quadrature test signal. An analog feedback loopback path selectively first routes the filtered quadrature first test signal to a quadrature receiver. The quadrature receiver has: at least one analog receive filter for further filtering the filtered quadrature first test signal; and a quadrature receive baseband circuit arranged to receive and decode the further filtered quadrature first test signal. The quadrature transmitter is arranged to receive a second quadrature test signal and the analog feedback loopback path selectively routes a filtered quadrature second test signal to the quadrature receiver via a second route such that the quadrature receive baseband circuit is arranged to determine a frequency-dependent quadrature imbalance of at least one component in the transmitter/receiver based on the decoded further filtered first quadrature test signal and the decoded further filtered second quadrature test signal.

    Abstract translation: 通信单元包括：具有用于对第一正交测试信号进行滤波的模拟发射滤波器的正交发射机。 模拟反馈环回路径选择性地首先将滤波的正交第一测试信号路由到正交接收机。 正交接收机具有：至少一个模拟接收滤波器，用于进一步滤波滤波的正交第一测试信号; 以及正交接收基带电路，被布置为接收和解码进一步滤波的正交第一测试信号。 正交发射器被布置成接收第二正交测试信号，并且模拟反馈环回路径经由第二路径选择性地将滤波的正交第二测试信号路由到正交接收机，使得正交接收基带电路被布置成确定频率相关的正交 基于解码的进一步滤波的第一正交测试信号和解码的进一步滤波的第二正交测试信号，发射机/接收机中的至少一个分量的不平衡。

    LINK PROTECTION USING RTS/CTS IN ENHANCED LONG RANGE (ELR) COMMUNICATION
    7.
    发明公开
    LINK PROTECTION USING RTS/CTS IN ENHANCED LONG RANGE (ELR) COMMUNICATION 审中-公开

    公开(公告)号：US20240172278A1

    公开(公告)日：2024-05-23

    申请号：US18509559

    申请日：2023-11-15

    Applicant: MEDIATEK INC.

    Inventor： You-Wei Chen ,  Jianhan Liu ,  Kai ying Lu ,  Shuling Feng ,  Tsung-Hsuan Wu ,  Thomas Edward Pare, JR.

    IPC: H04W74/08

    CPC classification number: H04W74/0808

    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a station (STA). In certain configurations, the STA transmits a request-to-send (RTS) frame in an enhanced long range (ELR) format for obtaining a transmission opportunity (TXOP). The STA receives a first clear-to-send (CTS) frame in the ELR format or a non-ELR format responding to the RTS frame. In response to receiving the first CTS frame, the STA transmits data in the ELR format in the TXOP. In certain configurations, the STA further receives an acknowledgement in the same format as the first CTS frame for responding to the data being transmitted. In certain configurations, prior to transmitting the RTS frame, the STA transmits a CTS-to-Self frame in the non-ELR format.

    SYSTEM AND METHOD FOR IMPROVED WLAN SENSING MEASUREMENT REPORT
    8.
    发明公开
    SYSTEM AND METHOD FOR IMPROVED WLAN SENSING MEASUREMENT REPORT 审中-公开

    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.

    Further Indication For WLAN Sensing Measurement Report
    9.
    发明公开
    Further Indication For WLAN Sensing Measurement Report 审中-公开

    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.

    Communication unit and method for determining and/or compensating for frequency dependent quadrature mismatch
    10.
    发明授权
    Communication unit and method for determining and/or compensating for frequency dependent quadrature mismatch 有权
    用于确定和/或补偿频率相关的正交失配的通信单元和方法

    公开(公告)号：US09231839B1

    公开(公告)日：2016-01-05

    申请号：US14324258

    申请日：2014-07-07

    Applicant: MEDIATEK INC.

    Inventor： Kuo-Hao Chen ,  Chun-Hao Liao ,  Kiran Uln ,  Shuling Feng

    IPC: H04L12/26 ,  H04L27/00

    CPC classification number: H04L27/2089 ,  H04L5/0023 ,  H04L27/2646 ,  H04L27/364

    Abstract: A communication unit includes: a quadrature transmitter having analog transmit filter(s) for filtering a first quadrature test signal. An analog feedback loopback path selectively first routes the filtered quadrature first test signal to a quadrature receiver. The quadrature receiver has: at least one analog receive filter for further filtering the filtered quadrature first test signal; and a quadrature receive baseband circuit arranged to receive and decode the further filtered quadrature first test signal. The quadrature transmitter is arranged to receive a second quadrature test signal and the analog feedback loopback path selectively routes a filtered quadrature second test signal to the quadrature receiver via a second route such that the quadrature receive baseband circuit is arranged to determine a frequency-dependent quadrature imbalance of at least one component in the transmitter/receiver based on the decoded further filtered first quadrature test signal and the decoded further filtered second quadrature test signal.

    Abstract translation: 通信单元包括：具有用于对第一正交测试信号进行滤波的模拟发射滤波器的正交发射机。 模拟反馈环回路径选择性地首先将滤波的正交第一测试信号路由到正交接收机。 正交接收机具有：至少一个模拟接收滤波器，用于进一步滤波滤波的正交第一测试信号; 以及正交接收基带电路，被布置为接收和解码进一步滤波的正交第一测试信号。 正交发射器被布置成接收第二正交测试信号，并且模拟反馈环回路径经由第二路径选择性地将经滤波的正交第二测试信号路由到正交接收机，使得正交接收基带电路被布置成确定频率相关的正交 基于解码的进一步滤波的第一正交测试信号和解码的进一步滤波的第二正交测试信号，发射机/接收机中的至少一个分量的不平衡。

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