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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。
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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。
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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。
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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
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。
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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。
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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
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。
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公开(公告)号：US09753884B2
公开(公告)日：2017-09-05
申请号：US12571188
申请日：2009-09-30
申请人： Kun Tan , Jiansong Zhang , Yongguang Zhang
发明人： Kun Tan , Jiansong Zhang , Yongguang Zhang
CPC分类号： G06F13/4273 , G06F13/38 , G06F13/40 , H04B1/0007
摘要： A radio control board exchanges data with a radio frequency (RF) front end using a messaging protocol over an interface that includes separate data and control channels. Training data can also be passed over the interface for tuning the clock phase.
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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
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。
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9.发明授权Mapping a transmission stream in a virtual baseband to a physical baseband with equalization 有权将虚拟基带中的传输流映射到具有均衡的物理基带公开(公告)号：US08989286B2
公开(公告)日：2015-03-24
申请号：US13294093
申请日：2011-11-10
申请人： Yong He , Kun Tan , Haichen Shen , Jiansong Zhang , Yongguang Zhang
发明人： Yong He , Kun Tan , Haichen Shen , Jiansong Zhang , Yongguang Zhang
CPC分类号： H04B7/24 , H04L5/0044 , H04L27/0006 , H04L27/2636 , H04W72/00 , Y02D70/00
摘要： Embodiments include processes, systems, and devices for reshaping virtual baseband signals for transmission on non-contiguous and variable portions of a physical baseband, such as a white space frequency band. In the transmission path, a spectrum virtualization layer maps a plurality of transmission components associated with a transmission symbol produced by a physical layer protocol to sub-carriers of the allocated physical frequency band. The spectrum virtualization layer then outputs a physical transmission symbol composed of time-domain samples derived from the mapped frequency components and a cyclic prefix. In the receive path, a time-domain symbol received on the physical baseband is reshaped and equalized by the virtual spectrum layer in order to recompose a time-domain samples of a transmission stream in the virtual baseband.
摘要翻译： 实施例包括用于重构虚拟基带信号以用于在诸如空白频带的物理基带的非连续和可变部分上传输的过程，系统和设备。 在传输路径中，频谱虚拟化层将与由物理层协议产生的传输符号相关联的多个传输组件映射到所分配的物理频带的子载波。 然后，频谱虚拟化层输出由映射的频率分量导出的时域样本和循环前缀组成的物理传输符号。 在接收路径中，在物理基带上接收的时域符号由虚拟频谱层重新整形和均衡，以便重构虚拟基带中的传输流的时域采样。
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10.发明授权公开(公告)号：US08948282B2
公开(公告)日：2015-02-03
申请号：US13294093
申请日：2011-11-10
申请人： Yong He , Kun Tan , Haichen Shen , Jiansong Zhang , Yongguang Zhang
发明人： Yong He , Kun Tan , Haichen Shen , Jiansong Zhang , Yongguang Zhang
摘要： Embodiments include processes, systems, and devices for reshaping virtual baseband signals for transmission on non-contiguous and variable portions of a physical baseband, such as a white space frequency band. In the transmission path, a spectrum virtualization layer maps a plurality of transmission components associated with a transmission symbol produced by a physical layer protocol to sub-carriers of the allocated physical frequency band. The spectrum virtualization layer then outputs a physical transmission symbol composed of time-domain samples derived from the mapped frequency components and a cyclic prefix. In the receive path, a time-domain symbol received on the physical baseband is reshaped and equalized by the virtual spectrum layer in order to recompose a time-domain samples of a transmission stream in the virtual baseband.
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