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    SHORT AND LONG TRAINING FIELDS
    22.
    发明申请
    SHORT AND LONG TRAINING FIELDS 审中-公开
    短期和长期培训领域

    公开(公告)号：US20140112330A1

    公开(公告)日：2014-04-24

    申请号：US14025628

    申请日：2013-09-12

    Applicant: Texas Instruments Incorporated

    Inventor： Timothy M. Schmidl ,  Anuj Batra ,  Srinath Hosur

    IPC: H04W56/00 ,  H04W4/00

    CPC classification number: H04W56/001 ,  H04L27/2613 ,  H04L27/2634 ,  H04W4/80

    Abstract: A method includes receiving a first plurality of symbols comprising complex portions. The method further includes applying conjugate symmetry to the first plurality of symbols, producing a second plurality of symbols comprising no complex portions. The method further includes transforming the second plurality of symbols using an inverse fast Fourier transform, producing a third plurality of symbols. The method further includes interpolating the third plurality of symbols, generating a short training field comprising at least one real portion of the third plurality of symbols, generating a long training field comprising at least one real portion of the third plurality of symbols, and transmitting the short training field and long training field in a WPAN.

    Abstract translation: 一种方法包括接收包括复数部分的第一多个符号。 该方法还包括将共轭对称性应用于第一多个符号，产生不包含复杂部分的第二多个符号。 该方法还包括使用快速傅里叶反变换来变换第二多个符号，产生第三个多个符号。 该方法还包括内插第三多个符号，产生包括第三多个符号的至少一个实部的短训练场，产生包括第三多个符号的至少一个实部的长训练场，并发送 短期培训领域和长期培训领域的WPAN。

    Short and long training fields
    23.
    发明授权
    Short and long training fields 有权

    公开(公告)号：US12302267B2

    公开(公告)日：2025-05-13

    申请号：US18319069

    申请日：2023-05-17

    Applicant: Texas Instruments Incorporated

    Inventor： Timothy M. Schmidl ,  Anuj Batra ,  Srinath Hosur

    IPC: H04W56/00 ,  H04L27/26 ,  H04W4/80

    Abstract: A method includes receiving a first plurality of symbols comprising complex portions. The method further includes applying conjugate symmetry to the first plurality of symbols, producing a second plurality of symbols comprising no complex portions. The method further includes transforming the second plurality of symbols using an inverse fast Fourier transform, producing a third plurality of symbols. The method further includes interpolating the third plurality of symbols, generating a short training field comprising at least one real portion of the third plurality of symbols, generating a long training field comprising at least one real portion of the third plurality of symbols, and transmitting the short training field and long training field in a WPAN.

    SHORT AND LONG TRAINING FIELDS
    24.
    发明申请
    SHORT AND LONG TRAINING FIELDS 有权

    公开(公告)号：US20210037491A1

    公开(公告)日：2021-02-04

    申请号：US17072232

    申请日：2020-10-16

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Timothy M. Schmidl ,  Anuj Batra ,  Srinath Hosur

    IPC: H04W56/00 ,  H04L27/26 ,  H04W4/80

    Abstract: A method includes receiving a first plurality of symbols comprising complex portions. The method further includes applying conjugate symmetry to the first plurality of symbols, producing a second plurality of symbols comprising no complex portions. The method further includes transforming the second plurality of symbols using an inverse fast Fourier transform, producing a third plurality of symbols. The method further includes interpolating the third plurality of symbols, generating a short training field comprising at least one real portion of the third plurality of symbols, generating a long training field comprising at least one real portion of the third plurality of symbols, and transmitting the short training field and long training field in a WPAN.

    PHY LAYER PARAMETERS FOR BODY AREA NETWORK (BAN) DEVICES
    30.
    发明申请
    PHY LAYER PARAMETERS FOR BODY AREA NETWORK (BAN) DEVICES 审中-公开
    物理层网络（BAN）设备的PHY层参数

    公开(公告)号：US20130343366A1

    公开(公告)日：2013-12-26

    申请号：US13917435

    申请日：2013-06-13

    Applicant: Texas Instruments Incorporated

    Inventor： Anuj Batra ,  Timothy M. Schmidl ,  Srinath Hosur ,  June C. Roh

    IPC: H04W4/00

    CPC classification number: H04W4/80 ,  H04L27/18 ,  H04L27/20 ,  H04L27/2675 ,  H04L69/22 ,  H04W52/36 ,  H04W52/367 ,  H04W72/0453 ,  H04W74/0816

    Abstract: In at least some embodiments, a communication device includes a transceiver with a physical (PHY) layer. The PHY layer is configured for body area network (BAN) operations in a limited multipath environment based on a constant symbol rate for BAN packet transmissions and based on M-ary PSK, differential M-ary PSK or rotated differential M-ary PSK modulation. The PHY layer is configured to transmit and receive data in a frequency band selected from the group consisting of: 402-405 MHz, 420-450 MHz, 863-870 MHz, 902-928 MHz, 950-956 MHz, 2360-2400 MHz, and 2400-2483.5 MHz.

    Abstract translation: 在至少一些实施例中，通信设备包括具有物理（PHY）层的收发器。 基于用于BAN分组传输的恒定符号速率并且基于M-ary PSK，差分M-ary PSK或旋转差分M-ary PSK调制，PHY层被配置用于在有限多径环境中的体区域网络（BAN）操作。 PHY层被配置为从选自以下的频带发送和接收数据：402-405MHz，420-450MHz，863-870MHz，902-928MHz，950-956MHz，2360-2400MHz ，和2400-2483.5MHz。

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