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    Uncontrolled spatial multiple access in wireless networks
    1.
    发明授权
    Uncontrolled spatial multiple access in wireless networks 有权
    无线网络中不受控制的空间多址接入

    公开(公告)号：US08340062B2

    公开(公告)日：2012-12-25

    申请号：US12792677

    申请日：2010-06-02

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

    IPC分类号： H04L27/28

    CPC分类号： H04L1/0045 ,  H04L1/208 ,  H04L25/03891

    摘要： An uncontrolled spatial multiple access system and method facilitating spatial multiple access for multiple devices in a wireless local-area network (WLAN). Embodiments of the system and method increase throughput of the wireless network by facilitating concurrent encoded frame transmission. Decoding of the quasi-overlapped frames is achieved using a chain decoding technique that takes data streams (or signals) containing the quasi-overlapping encoded frames and isolates each encoded frame so that the frame can be decoded. Quasi-overlapped frames means that the frames are overlapped in the body of the frame but not at the preamble (or headers) of the frames. Embodiments of the chain decoding also use interference nullifying and interference cancellation to enable concurrent quasi-overlapping transmission. A carrier counting multiple access technique of embodiments of the system and method allow wireless networks to retain their asynchronous nature while supporting spatial multiple access and maintain backwards compatibility with the IEEE 802.11 standard.

    摘要翻译： 一种不受控制的空间多址系统和方法，其促进无线局域网（WLAN）中的多个设备的空间多址接入。 该系统和方法的实施例通过促进并发编码的帧传输来增加无线网络的吞吐量。 使用链式解码技术来实现准重叠帧的解码，链路解码技术获取包含准重叠编码帧的数据流（或信号），并隔离每个编码帧，使得帧可以被解码。 准重叠帧意味着帧在帧的主体中重叠，但不在帧的前导码（或报头）处。 链路解码的实施例还使用干扰无效和干扰消除来实现并行准重叠传输。 计算系统和方法的实施例的多址接入技术的载波允许无线网络保持其异步性质，同时支持空间多址并保持与IEEE 802.11标准的向后兼容性。

    UNCONTROLLED SPATIAL MULTIPLE ACCESS IN WIRELESS NETWORKS
    2.
    发明申请
    UNCONTROLLED SPATIAL MULTIPLE ACCESS IN WIRELESS NETWORKS 有权
    无线网络中的无限空间多路访问

    公开(公告)号：US20110299612A1

    公开(公告)日：2011-12-08

    申请号：US12792677

    申请日：2010-06-02

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  He Liu ,  Ji Fang

    IPC分类号： H04L27/28

    CPC分类号： H04L1/0045 ,  H04L1/208 ,  H04L25/03891

    摘要： An uncontrolled spatial multiple access system and method facilitating spatial multiple access for multiple devices in a wireless local-area network (WLAN). Embodiments of the system and method increase throughput of the wireless network by facilitating concurrent encoded frame transmission. Decoding of the quasi-overlapped frames is achieved using a chain decoding technique that takes data streams (or signals) containing the quasi-overlapping encoded frames and isolates each encoded frame so that the frame can be decoded. Quasi-overlapped frames means that the frames are overlapped in the body of the frame but not at the preamble (or headers) of the frames. Embodiments of the chain decoding also use interference nullifying and interference cancelation to enable concurrent quasi-overlapping transmission. A carrier counting multiple access technique of embodiments of the system and method allow wireless networks to retain their asynchronous nature while supporting spatial multiple access and maintain backwards compatibility with the IEEE 802.11 standard.

    摘要翻译： 一种不受控制的空间多址系统和方法，其促进无线局域网（WLAN）中的多个设备的空间多址接入。 该系统和方法的实施例通过促进并发编码的帧传输来提高无线网络的吞吐量。 使用链式解码技术来实现准重叠帧的解码，链路解码技术获取包含准重叠编码帧的数据流（或信号），并隔离每个编码帧，使得帧可以被解码。 准重叠帧意味着帧在帧的主体中重叠，但不在帧的前导码（或报头）处。 链路解码的实施例还使用干扰无效和干扰消除来实现并行准重叠传输。 计算系统和方法的实施例的多址接入技术的载波允许无线网络保持其异步性质，同时支持空间多址并保持与IEEE 802.11标准的向后兼容性。

    Full-rate cooperative relay
    3.
    发明授权
    Full-rate cooperative relay 有权
    全速率合作继电器

    公开(公告)号：US08660056B2

    公开(公告)日：2014-02-25

    申请号：US12952063

    申请日：2010-11-22

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

    IPC分类号： H04W4/00 ,  H04B7/14 ,  H04J1/10 ,  H04J3/08 ,  H04B7/155 ,  H04B7/15

    CPC分类号： H04B7/15521 ,  H04B7/14 ,  H04B7/15 ,  H04B7/15528 ,  H04B7/15592

    摘要： Techniques and systems that improve throughput between a pair of nodes by using two multi-hop paths of one-way flows regardless of the one-way flows interfering with each other are described herein. These techniques enable nearly full-rate data flow through frame transmissions, even though these frame transmissions can interfere with substantially concurrent relay transmissions. In some implementations, relays on the two paths forward mixed frame signals to the next hop without trying to decode the mixed frame signals of interfered frames. The destination successfully recovers the useful information from the mixed frame signals by canceling out interference based on previously received frames.

    摘要翻译： 这里描述了通过使用单向流的两个多跳路径来改善一对节点之间的吞吐量的技术和系统，而不管彼此干扰的单向流。 即使这些帧传输可能干扰基本上并发的中继传输，这些技术使得能够通过帧传输几乎全速率数据流。 在一些实施方式中，两个路径上的中继器将混合帧信号转发到下一跳，而不尝试对被干扰帧的混合帧信号进行解码。 目的地通过基于先前接收到的帧来消除干扰，从混合帧信号成功地恢复有用信息。

    FINE-GRAINED CHANNEL ACCESS IN WIRELESS NETWORKS
    4.
    发明申请
    FINE-GRAINED CHANNEL ACCESS IN WIRELESS NETWORKS 有权
    无线网络中的细粒度通道访问

    公开(公告)号：US20110317633A1

    公开(公告)日：2011-12-29

    申请号：US12824104

    申请日：2010-06-25

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji Fang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji Fang

    IPC分类号： H04W74/00

    CPC分类号： H04W74/08 ,  H04L27/2607 ,  H04W72/00 ,  H04W72/044 ,  H04W84/12

    摘要： A fine-grained channel access system and method to facilitate fine-grained channel access in a high-data rate wide-band wireless local-area network (WLAN). Embodiments of the system and method divide an entire wireless channel into proper size subchannels commensurate with the physical layer data rate and typical frame size. Once the subchannels are defined, each node on the WLAN contends independently for each of the fine-grained subchannels. A first orthogonal frequency-division multiplexing (OFDM) technique is used to signal an access point on the WLAN that the node desires one or more of the subchannels. A second OFDM technique (which is different from the first OFDM technique) is used for data transmission. Sometimes there is contention between nodes that want the same subchannel. The access point resolves any contention between the nodes using a frequency domain contention technique that includes a frequency domain backoff technique.

    摘要翻译： 一种细粒度的信道接入系统和方法，用于在高数据速率宽带无线局域网（WLAN）中促进细粒度信道接入。 系统和方法的实施例将整个无线信道划分成与物理层数据速率和典型帧大小相称的适当尺寸的子信道。 一旦定义了子信道，WLAN上的每个节点独立地针对每个细粒度子信道进行竞争。 第一正交频分复用（OFDM）技术用于向WLAN上的接入点发信号通知节点希望一个或多个子信道。 第二OFDM技术（其与第一OFDM技术不同）用于数据传输。 有时在需要相同子通道的节点之间存在竞争。 接入点使用包括频域退避技术的频域争用技术来解决节点之间的任何争用。

    Fine-grained channel access in wireless networks
    5.
    发明授权
    Fine-grained channel access in wireless networks 有权
    无线网络中的细粒度通道接入

    公开(公告)号：US09445432B2

    公开(公告)日：2016-09-13

    申请号：US12824104

    申请日：2010-06-25

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji Fang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji Fang

    IPC分类号： H04W74/08 ,  H04L27/26 ,  H04W72/00 ,  H04W72/04 ,  H04W84/12

    CPC分类号： H04W74/08 ,  H04L27/2607 ,  H04W72/00 ,  H04W72/044 ,  H04W84/12

    摘要： A fine-grained channel access system and method to facilitate fine-grained channel access in a high-data rate wide-band wireless local-area network (WLAN). Embodiments of the system and method divide an entire wireless channel into proper size subchannels commensurate with the physical layer data rate and typical frame size. Once the subchannels are defined, each node on the WLAN contends independently for each of the fine-grained subchannels. A first orthogonal frequency-division multiplexing (OFDM) technique is used to signal an access point on the WLAN that the node desires one or more of the subchannels. A second OFDM technique (which is different from the first OFDM technique) is used for data transmission. Sometimes there is contention between nodes that want the same subchannel. The access point resolves any contention between the nodes using a frequency domain contention technique that includes a frequency domain backoff technique.

    摘要翻译： 一种细粒度的信道接入系统和方法，用于在高数据速率宽带无线局域网（WLAN）中促进细粒度信道接入。 系统和方法的实施例将整个无线信道划分成与物理层数据速率和典型帧大小相称的适当尺寸的子信道。 一旦定义了子信道，WLAN上的每个节点独立地针对每个细粒度子信道进行竞争。 第一正交频分复用（OFDM）技术用于向WLAN上的接入点发信号通知节点希望一个或多个子信道。 第二OFDM技术（其与第一OFDM技术不同）用于数据传输。 有时在需要相同子通道的节点之间存在竞争。 接入点使用包括频域退避技术的频域争用技术来解决节点之间的任何争用。

    Full-Rate Cooperative Relay
    6.
    发明申请
    Full-Rate Cooperative Relay 有权
    全速合作中继

    公开(公告)号：US20120127914A1

    公开(公告)日：2012-05-24

    申请号：US12952063

    申请日：2010-11-22

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang ,  Ji-hoon Ryoo ,  Ji Fang

    IPC分类号： H04B7/14

    CPC分类号： H04B7/15521 ,  H04B7/14 ,  H04B7/15 ,  H04B7/15528 ,  H04B7/15592

    摘要： Techniques and systems that improve throughput between a pair of nodes by using two multi-hop paths of one-way flows regardless of the one-way flows interfering with each other are described herein. These techniques enable nearly full-rate data flow through frame transmissions, even though these frame transmissions can interfere with substantially concurrent relay transmissions. In some implementations, relays on the two paths forward mixed frame signals to the next hop without trying to decode the mixed frame signals of interfered frames. The destination successfully recovers the useful information from the mixed frame signals by canceling out interference based on previously received frames.

    摘要翻译： 这里描述了通过使用单向流的两个多跳路径来改善一对节点之间的吞吐量的技术和系统，而不管彼此干扰的单向流。 即使这些帧传输可能干扰基本上并发的中继传输，这些技术使得能够通过帧传输几乎全速率数据流。 在一些实施方式中，两个路径上的中继器将混合帧信号转发到下一跳，而不尝试对被干扰帧的混合帧信号进行解码。 目的地通过基于先前接收到的帧来消除干扰，从混合帧信号成功地恢复有用信息。

    Analyzing Wireless Technologies Based On Software-Defined Radio
    10.
    发明申请
    Analyzing Wireless Technologies Based On Software-Defined Radio 审中-公开
    基于软件定义无线电的无线技术分析

    公开(公告)号：US20110136439A1

    公开(公告)日：2011-06-09

    申请号：US12631548

    申请日：2009-12-04

    申请人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang

    发明人： Kun Tan ,  Jiansong Zhang ,  Yongguang Zhang

    IPC分类号： H04B17/00 ,  H04M3/00 ,  G06F13/14 ,  G06F3/00

    CPC分类号： H04W24/08

    摘要： An analysis application is adapted to be executed on a computing device for collecting data for analysis from a software-defined radio implemented on the same computing device or on a separate computing device for testing measurement and analysis of wireless standards, radio configurations, communication protocols and other radio technologies.

    摘要翻译： 分析应用适于在计算设备上执行，用于从在相同的计算设备上实现的软件定义的无线电收集数据或者在用于测试无线标准，无线电配置，通信协议的测量和分析的单独的计算设备上收集用于分析的数据， 其他无线电技术。