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    Low PAPR dual sub-carrier modulation scheme for BPSK in WLAN
    1.
    发明授权
    Low PAPR dual sub-carrier modulation scheme for BPSK in WLAN 有权

    公开(公告)号：US10225122B2

    公开(公告)日：2019-03-05

    申请号：US15422755

    申请日：2017-02-02

    Applicant: MEDIATEK INC.

    Inventor： Gary A. Anwyl ,  Jianhan Liu ,  Tianyu Wu ,  Thomas Edward Pare, Jr.

    IPC: H04L27/26 ,  H04L1/00 ,  H04W84/12

    Abstract: Dual sub-carrier modulation (DCM) is introduced in high efficiency (HE) WLAN. DCM is a solution to deal with narrow band interferences and for range extension. DCM can introduce frequency diversity into OFDM systems by transmitting the same information on two subcarriers separated in frequency. If DCM is applied, then the transmitter modulates the same encoded bits onto two separated subcarriers with the same or different constellation mapping schemes. DCM suffers from a high peak-to-average power ratio (PAPR). In accordance with one novel aspect, a method of transmitting and encoding a HE PPDU frame with binary phase shift keying (BPSK) DCM and lower PAPR is proposed.

    Interleaver design for dual sub-carrier modulation in WLAN
    2.
    发明授权
    Interleaver design for dual sub-carrier modulation in WLAN 有权

    公开(公告)号：US10200228B2

    公开(公告)日：2019-02-05

    申请号：US15381109

    申请日：2016-12-16

    Applicant: MEDIATEK INC.

    Inventor： Tianyu Wu ,  Jianhan Liu ,  Gary A. Anwyl ,  Thomas Edward Pare, Jr.

    IPC: H04L27/26 ,  H04L1/00 ,  H04L1/04 ,  H04L1/08 ,  H04W84/12

    Abstract: A method of interleaver design for dual carrier modulation (DCM) is proposed in a wireless network. For HE PPDU transmission with DCM, information bits are first encoded by a BCC encoder. The BCC encoded bit streams are then interleaved by a BCC interleaver. More specifically, the BCC interleaved bits are repeated on two halves of a given resource unit (RU). The BCC interleaver parameters are defined based on half of the total number of the data tones of the RU if DCM is applied. The BCC interleaved bits are then modulated and mapped to two halves of the RU by a DCM constellation mapper.

    SCHEME FOR PERFORMING BEAMFORMING CALIBRATION BY MEASURING JOINT SIGNAL Path MISMATCH
    4.
    发明申请
    SCHEME FOR PERFORMING BEAMFORMING CALIBRATION BY MEASURING JOINT SIGNAL Path MISMATCH 有权
    通过测量联合信号执行光束校准的方案路径MISMATCH

    公开(公告)号：US20160149652A1

    公开(公告)日：2016-05-26

    申请号：US14923445

    申请日：2015-10-27

    Applicant: MEDIATEK INC.

    Inventor： Yen-Lin Huang ,  Hsiang-Hui Chang ,  Hung-Tao Hsieh ,  Gary A. Anwyl ,  Thomas Edward Pare, JR.

    IPC: H04B17/14 ,  H04L25/02 ,  H04B7/04 ,  H04B7/06

    CPC classification number: H04B17/14 ,  H04B7/0413 ,  H04B7/0617 ,  H04L25/0202

    Abstract: A method operative on a wireless transceiver device for performing beamforming calibration includes: measuring at least one joint signal response of at least one circuit loopback between a transmitter of the wireless transceiver device and a receiver of the wireless transceiver device to determine the measurement result; and calibrating joint signal path mismatch according to the measurement result for s multiple antenna beamforming system operating on the wireless transceiver device.

    Abstract translation: 一种在用于执行波束成形校准的无线收发器设备上操作的方法包括：测量无线收发器设备的发射机与无线收发器设备的接收机之间的至少一个电路环回的至少一个联合信号响应，以确定测量结果; 并且根据在无线收发器设备上操作的多天线波束成形系统的测量结果来校准联合信号路径失配。

    Scheme for performing beamforming calibration by measuring joint signal path mismatch
    5.
    发明授权
    Scheme for performing beamforming calibration by measuring joint signal path mismatch 有权
    用于通过测量联合信号路径失配来执行波束成形校准的方案

    公开(公告)号：US09590745B2

    公开(公告)日：2017-03-07

    申请号：US14923445

    申请日：2015-10-27

    Applicant: MEDIATEK INC.

    Inventor： Yen-Lin Huang ,  Hsiang-Hui Chang ,  Hung-Tao Hsieh ,  Gary A. Anwyl ,  Thomas Edward Pare, Jr.

    IPC: H04B7/06 ,  H04B17/14 ,  H04B7/04 ,  H04L25/02

    CPC classification number: H04B17/14 ,  H04B7/0413 ,  H04B7/0617 ,  H04L25/0202

    Abstract: A method operative on a wireless transceiver device for performing beamforming calibration includes: measuring at least one joint signal response of at least one circuit loopback between a transmitter of the wireless transceiver device and a receiver of the wireless transceiver device to determine the measurement result; and calibrating joint signal path mismatch according to the measurement result for s multiple antenna beamforming system operating on the wireless transceiver device.

    Abstract translation: 一种在用于执行波束成形校准的无线收发器设备上操作的方法包括：测量无线收发器设备的发射机与无线收发器设备的接收机之间的至少一个电路环回的至少一个联合信号响应，以确定测量结果; 并且根据在无线收发器设备上操作的多天线波束成形系统的测量结果来校准联合信号路径失配。

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