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1. 发明授权

US09252990B1 MIMO sphere decoder with linear startup in a wireless local area network 有权
标题翻译：在无线局域网中具有线性启动的MIMO球体解码器
公开(公告)号：US09252990B1
公开(公告)日：2016-02-02
申请号：US13652376
申请日：2012-10-15
申请人： Quantenna Communications, Inc.
发明人： Pengcheng Zhan , Hossein Dehghan , Hongping Liu
IPC分类号： H04L25/03 , H04L1/06
CPC分类号： H04L25/03242 , H04L1/005 , H04L1/0656 , H04L25/03229
摘要： A wireless device with multiple antennae and configured to support orthogonal frequency-division multiplexed (OFDM), multiple-input multiple-output (MIMO) communications of a wireless local area network (LAN) over a wireless communication medium on a communication channel. The wireless device comprises: a MIMO demapper configured to receive a packet on the communication channel and to perform both linear together with non-linear decoding processes based on an initial communication channel estimate ‘H’, and with initial linear decoding of at least a first received symbol in a payload portion of the received packet followed by decoding of remaining symbols in the packet using non-linear sphere decoding, thereby reducing a level of complexity associated with non-linear decoding by extending a time interval available for an initial channel estimate decomposition portion of non-linear sphere decoding to span at least a portion of a n interval associated with linear decoding of at least the first received payload symbol.
摘要翻译：一种具有多个天线并被配置为支持无线局域网（LAN）在通信信道上的无线通信介质上的正交频分复用（OFDM），多输入多输出（MIMO）通信的无线设备。所述无线设备包括：MIMO去映射器，被配置为在所述通信信道上接收分组，并且基于初始通信信道估计'H'与非线性解码处理两者同时执行线性，并且利用初始线性解码至少第一在接收到的分组的有效载荷部分中接收到符号，随后使用非线性球体解码解码分组中的剩余符号，从而通过扩展可用于初始信道估计分解的时间间隔来降低与非线性解码相关联的复杂度水平部分非线性球体解码以跨越与至少第一接收到的有效载荷符号的线性解码相关联的间隔的至少一部分。

2. 发明授权

US09078142B1 Method and apparatus to decouple link adaptation and transmit beamforming in WiFi systems 有权
标题翻译：在WiFi系统中解耦链路自适应和发送波束成形的方法和装置
公开(公告)号：US09078142B1
公开(公告)日：2015-07-07
申请号：US13897431
申请日：2013-05-19
申请人： Quantenna Communications, Inc.
发明人： Pengcheng Zhan , Hossein Dehghan
IPC分类号： H04W4/00 , H04W16/28
CPC分类号： H04W16/28 , H04W84/12
摘要： A link optimizer for optimizing a link on a wireless local area network (WLAN). The link optimizer includes: a sounding distender, a beamform matrix derivation module, and a link dimension attenuator. The sounding distender send a sounding packet exclusively at a maximum number of streams and at a maximum bandwidth supported by the link and receives a MIMO feedback beamforming matrix in response. The beamform matrix derivation module derives from the received MIMO feedback beamforming matrix a set of derived MIMO beamforming matrices having at least a column dimension less than a column dimension in the feedback beamforming matrix. The link dimension attenuator selects at least one of the derived beamforming matrices for transmission of subsequent communication packets, thereby avoiding a requirement for additional channel sounding.
摘要翻译：用于优化无线局域网（WLAN）上的链路的链路优化器。链路优化器包括：发声扩展器，波束形矩阵推导模块和链路尺寸衰减器。声音扩展器以最大数量的流和链路所支持的最大带宽专门发送探测分组，并且响应地接收MIMO反馈波束形成矩阵。波束形矩阵导出模块从所接收的MIMO反馈波束形成矩阵中导出一组导出的MIMO波束形成矩阵，其具有小于反馈波束形成矩阵中的列维的至少列维数。链路尺寸衰减器选择至少一个导出的波束形成矩阵来传输随后的通信分组，从而避免对附加信道探测的要求。

3. 发明授权

US09231671B1 Method and apparatus for link optimization in a Wi-Fi home network 有权
标题翻译：用于Wi-Fi家庭网络中链路优化的方法和装置
公开(公告)号：US09231671B1
公开(公告)日：2016-01-05
申请号：US13892291
申请日：2013-05-12
申请人： Quantenna Communications, Inc.
发明人： Pengcheng Zhan , Neville Young , Qasem Aldrubi , Hossein Dehghan
IPC分类号： H04W4/00 , H04B7/04
CPC分类号： H04B7/0413 , H04B7/0623 , H04B7/0695
摘要： A link optimizer for optimizing a link on a wireless local area network (WLAN). The link optimizer including: a beamform matrix generator configured to generate discrete candidate beamforming matrices for spatially modulating successive communication packets from a multiple-input multiple-output (MIMO) capable transmitter one of the WLAN nodes that supports beamforming to a recipient one of the nodes that does not support beamforming; and a beamform evaluator configured to evaluate discrete ones among the set of candidate beam forming matrices generated by the beamform matrix generator based on receipt acknowledgements from the recipient one of the nodes for each successive communication packet transmitted from the MIMO capable transmitter one of the nodes; and to utilize a successfully evaluated one of the candidate beam forming matrices for transmission of subsequent communication packets from the MIMO transmitter one of the nodes to the recipient one of the nodes.
摘要翻译：用于优化无线局域网（WLAN）上的链路的链路优化器。所述链路优化器包括：波束形矩阵发生器，其被配置为生成离散候选波束成形矩阵，用于将支持波束成形的所述WLAN节点之一的多输入多输出（MIMO）能力发射机的连续通信分组空间调制到所述节点中的接收者之一不支持波束成形; 以及波束形状评估器，被配置为基于从所述MIMO能力发射机之一发送的每个连续的通信分组，从所述波束形矩阵生成器生成的所述候选波束形成矩阵集合中的离散的，对来自所述接收者节点之一的接收确认进行评估; 并且利用成功评估的候选波束形成矩阵中的一个用于将后续通信分组的传输从节点中的一个的MIMO发射机发送到节点的接收方之一。

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