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    System discovery and signaling
    1.
    发明授权
    System discovery and signaling 有权

    公开(公告)号：US11627030B2

    公开(公告)日：2023-04-11

    申请号：US17236206

    申请日：2021-04-21

    申请人： One Media, LLC

    发明人： Michael J. Simon ,  Kevin A. Shelby ,  Mark Earnshaw ,  Sandeep Mavuduru Kannappa

    IPC分类号： H04L27/26 ,  H04J13/00 ,  H04J13/10

    摘要： An extensible communication system is described herein. The system includes a first module for receiving a root index value and for generating a constant amplitude zero auto-correlation sequence based on the root value. The system further includes a second module for receiving a seed value and for generating a Pseudo-Noise sequence based on the seed value. The system further includes a third module for modulating the constant amplitude zero auto-correlation sequence by the Pseudo-Noise sequence and for generating a complex sequence. The system further includes a fourth module for translating the complex sequence to a time domain sequence, wherein the fourth module applies a cyclic shift to the time domain sequence to obtain a shifted time domain sequence.

    Dynamic Configuration of a Flexible Orthogonal Frequency Division Multiplexing PHY Transport Data Frame
    2.
    发明申请
    Dynamic Configuration of a Flexible Orthogonal Frequency Division Multiplexing PHY Transport Data Frame 审中-公开

    公开(公告)号：US20190268195A1

    公开(公告)日：2019-08-29

    申请号：US16269698

    申请日：2019-02-07

    申请人： One Media, LLC

    发明人： Michael J. Simon ,  Kevin A. Shelby ,  Mark Earnshaw

    IPC分类号： H04L27/26 ,  H04L5/00 ,  H04W72/00

    摘要： A base station may generate and transmit a transport stream including a sequence of frames. A frame may include a plurality of partitions, where each partition includes a corresponding set of OFDM symbols. For each partition, the OFDM symbols in that partition may have a corresponding cyclic prefix size and a corresponding FFT size, allowing different partitions to be targeted for different collections of user devices, e.g., user devices having different expected values of maximum delay spread and/or different ranges of mobility. The base station may also dynamically re-configure the sample rate of each frame, allowing further resolution in control of subcarrier spacing. By allowing the cyclic prefixes of different OFDM symbols to have different lengths, it is feasible to construct a frame that confirms to a set payload duration and has arbitrary values of cyclic prefix size per partition and FFT size per partition. The partitions may be multiplexed in time and/or frequency.

    Dynamic Configuration of a Flexible Orthogonal Frequency Division Multiplexing PHY Transport Data Frame
    3.
    发明申请
    Dynamic Configuration of a Flexible Orthogonal Frequency Division Multiplexing PHY Transport Data Frame 有权
    灵活的正交频分复用PHY传输数据帧的动态配置

    公开(公告)号：US20160043830A1

    公开(公告)日：2016-02-11

    申请号：US14821107

    申请日：2015-08-07

    申请人： ONE Media, LLC

    发明人： Michael J. Simon ,  Kevin A. Shelby ,  Mark Earnshaw

    IPC分类号： H04L1/00 ,  H04L5/00

    CPC分类号： H04L27/265 ,  H04L5/0007 ,  H04L5/003 ,  H04L27/2602 ,  H04L27/2607 ,  H04W72/005 ,  H04W88/16

    摘要： A base station may generate and transmit a transport stream including a sequence of frames. A frame may include a plurality of partitions, where each partition includes a corresponding set of OFDM symbols. For each partition, the OFDM symbols in that partition may have a corresponding cyclic prefix size and a corresponding FFT size, allowing different partitions to be targeted for different collections of user devices, e.g., user devices having different expected values of maximum delay spread and/or different ranges of mobility. The base station may also dynamically re-configure the sample rate of each frame, allowing further resolution in control of subcarrier spacing. By allowing the cyclic prefixes of different OFDM symbols to have different lengths, it is feasible to construct a frame that conforms to a set payload duration and has arbitrary values of cyclic prefix size per partition and FFT size per partition. The partitions may be multiplexed in time and/or frequency.

    摘要翻译： 基站可以生成并发送包括帧序列的传输流。 帧可以包括多个分区，其中每个分区包括相应的一组OFDM符号。 对于每个分区，该分区中的OFDM符号可以具有对应的循环前缀大小和对应的FFT大小，允许针对不同用户设备集合的不同分区，例如具有不同预期值的最大延迟扩展的用户设备和/ 或不同的移动范围。 基站还可以动态地重新配置每个帧的采样率，从而允许进一步解析子载波间隔的控制。 通过允许不同OFDM符号的循环前缀具有不同的长度，构建符合设定有效载荷持续时间的帧是可行的，并且具有每个分区的循环前缀大小和每个分区的FFT大小的任意值。 分区可以在时间和/或频率上复用。

    Dynamic configuration of a flexible orthogonal frequency division multiplexing PHY transport data frame
    6.
    发明授权
    Dynamic configuration of a flexible orthogonal frequency division multiplexing PHY transport data frame 有权

    公开(公告)号：US11146437B2

    公开(公告)日：2021-10-12

    申请号：US16795850

    申请日：2020-02-20

    申请人： One Media, LLC

    发明人： Michael J. Simon ,  Kevin A. Shelby ,  Mark Earnshaw

    IPC分类号： H04L27/26 ,  H04L5/00 ,  H04W72/00 ,  H04W88/16

    摘要： A base station may generate and transmit a transport stream including a sequence of frames. A frame may include a plurality of partitions, where each partition includes a corresponding set of OFDM symbols. For each partition, the OFDM symbols in that partition may have a corresponding cyclic prefix size and a corresponding FFT size, allowing different partitions to be targeted for different collections of user devices, e.g., user devices having different expected values of maximum delay spread and/or different ranges of mobility. The base station may also dynamically re-configure the sample rate of each frame, allowing further resolution in control of subcarrier spacing. By allowing the cyclic prefixes of different OFDM symbols to have different lengths, it is feasible to construct a frame that confirms to a set payload duration and has arbitrary values of cyclic prefix size per partition and FFT size per partition. The partitions may be multiplexed in time and/or frequency.

    Future-proofed control signaling
    7.
    发明授权
    Future-proofed control signaling 有权

    公开(公告)号：US10958984B2

    公开(公告)日：2021-03-23

    申请号：US15650313

    申请日：2017-07-14

    申请人： One Media, LLC

    发明人： Mark Earnshaw

    IPC分类号： H04N21/647 ,  H04N21/2362 ,  H04N21/6547 ,  H04N21/63 ,  H04L1/00 ,  H04N21/61

    摘要： Systems and methods for future-proofed control signaling are disclosed herein. A waveform enabling broadcast transmission of physical layer frames having variable parameters can be extended to allow for future additions to the control signaling structure without breaking compatibility with existing receivers. In some embodiments, new signaling parameters can be added in an existing portion of a preamble and the length of the modified parameter set can be indicated to legacy receivers. In some embodiments new signaling parameters can be added at the end of the existing preamble and viewed as reserved bits by legacy receivers.

    Sampling clock alignment and time offset signaling for symbol-aligned frames
    9.
    发明授权
    Sampling clock alignment and time offset signaling for symbol-aligned frames 有权

    公开(公告)号：US10397026B2

    公开(公告)日：2019-08-27

    申请号：US15344247

    申请日：2016-11-04

    申请人： One Media LLC

    发明人： Mark Earnshaw ,  John Stewart

    IPC分类号： H04L25/03 ,  H04H60/29 ,  H04L27/26

    摘要： Systems and methods for sampling clock alignment and time offset signaling are disclosed herein. A transmitter broadcasting symbol-aligned frames at multiple baseband sampling rates can benefit from generating the frames to have durations that can be represented by an integer number of samples at two or more of the baseband sampling rates. In some embodiments, a transmitter adds samples to a frame to ensure that its duration meets such a criteria. Furthermore, the problem of signaling network time in symbol-aligned frames is simplified by sampling clock alignment. Approaches for signaling time offset of a transmission to the nearest millisecond boundary are also presented.