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71. 发明申请

US20070248172A1 System and method for transmitting signals in cooperative base station multi-user MIMO networks 有权
标题翻译：在合作基站多用户MIMO网络中传输信号的系统和方法
公开(公告)号：US20070248172A1
公开(公告)日：2007-10-25
申请号：US11408284
申请日：2006-04-20
申请人： Neelesh Mehta , Hongyuan Zhang , Andreas Molisch , Jinyun Zhang
发明人： Neelesh Mehta , Hongyuan Zhang , Andreas Molisch , Jinyun Zhang
IPC分类号： H04K1/10
CPC分类号： H04B7/024
摘要： A method transmits and receives signals in a cooperative, multi-user, multi-input, multi-output network. The network includes base stations (BSs) and mobile stations (MSs). Each BS has at least two antennas, and each MS has at least one antenna. At a first base station and a second base station using linear pre-coding matrices, a plurality of data streams are jointly pre-coded to produce first signals and second signals. The first signals are transmitted synchronously from the first BS and the second BS to a first MS, and the second signals are transmitted synchronously from the first BS and the second BS to a second MS, and in the first signal and the second signal are asynchronous with respect each other.
摘要翻译：一种方法是在合作，多用户，多输入，多输出网络中发送和接收信号。网络包括基站（BS）和移动站（MS）。每个BS具有至少两个天线，并且每个MS具有至少一个天线。在使用线性预编码矩阵的第一基站和第二基站处，多个数据流被联合预编码以产生第一信号和第二信号。第一信号从第一BS和第二BS同步发送到第一MS，并且第二信号从第一BS和第二BS同步发送到第二MS，并且在第一信号和第二信号是异步的相互尊重

72. 发明授权

US07280942B2 Method for representing a combination of signals with a distribution of a single lognormal random variable 有权
公开(公告)号：US07280942B2
公开(公告)日：2007-10-09
申请号：US11203440
申请日：2005-08-15
申请人： Neelesh B. Mehta , Andreas F. Molisch , Jingxian Wu , Jinyun Zhang
发明人： Neelesh B. Mehta , Andreas F. Molisch , Jingxian Wu , Jinyun Zhang
IPC分类号： G06F15/00
CPC分类号： H04B17/23
摘要： A method analyzes a set of signal acquired from a physical system. A set of parameters characterizing the set of signals is measured. The parameters can include the mean and the variance of the power of the signal, and a Rician factor. A first point and a second point of a moment generating function for a combination of the set of signals are evaluated according to the set of parameters to obtain a first sample and a second sample, respectively. First and second equations are defined. The equations respectively have an approximation of a moment generation function of a lognormal random variable representing the combination of the set of signals, at the first point and the second point, on the left side, and the first and second sample on the right side. The two equations are solved to obtain a mean and a variance of the lognormal random variable representing a distribution of the combination of the set of the signals.

73. 发明申请

US20070217524A1 Frame timing synchronization for orthogonal frequency division multiplexing (OFDM) 失效
标题翻译：正交频分复用（OFDM）的帧定时同步
公开(公告)号：US20070217524A1
公开(公告)日：2007-09-20
申请号：US11376287
申请日：2006-03-16
申请人： Dong Wang , Jinyun Zhang
发明人： Dong Wang , Jinyun Zhang
IPC分类号： H04K1/10 , H04B1/00
CPC分类号： H04L27/2656 , H04L27/2675 , H04L27/2676
摘要： A frame timing synchronization technique for orthogonal frequency division multiplexing (OFDM) systems is presented. First, a coarse synchronization technique generates a coarse frame timing estimate. The coarse synchronization technique applies a sliding window differentiator to the output of a conventional auto-correlator to mitigate the plateau effect associated with conventional auto-correlation techniques. Second, a fine synchronization technique generates a fine frame timing estimate. The fine synchronization technique uses the coarse frame timing estimate to reduce the number of cross-correlation calculations. Additionally, the fine synchronization technique acquires a fine frame timing estimate based on a signal-to-interference ratio (SIR) metric, which is more robust to multi-paths and pseudo multi-paths caused by cyclic delay diversity (CDD) schemes than conventional cross-correlation synchronization techniques. A fine-tuning technique generates a desired frame timing estimate by searching a first signal path in a searching window around the fine frame timing estimate to further refine frame timing synchronization.
摘要翻译：提出了一种用于正交频分复用（OFDM）系统的帧定时同步技术。首先，粗同步技术产生粗帧定时估计。粗同步技术将滑动窗口微分器应用于常规自相关器的输出，以减轻与常规自相关技术相关的平台效应。第二，精细同步技术产生精细帧定时估计。精细同步技术使用粗帧定时估计来减少互相关计算的数量。另外，精细同步技术基于信号干扰比（SIR）度量获得精细的帧定时估计，该信道干扰比（SIR）度量对于由常规的循环延迟分集（CDD）方案引起的多路径和伪多路径更加鲁棒互相关同步技术。微调技术通过在精细帧定时估计周围的搜索窗口中搜索第一信号路径来产生期望的帧定时估计，以进一步优化帧定时同步。

74. 发明授权

US07103109B2 Randomly inverting pulse polarity in an UWB signal for power spectrum density shaping 有权
标题翻译：在UWB信号中随机反转脉冲极性，用于功率谱密度整形
公开(公告)号：US07103109B2
公开(公告)日：2006-09-05
申请号：US10361315
申请日：2003-02-10
申请人： Yves-Paul Nakache , Andreas Molisch , Jinyun Zhang
发明人： Yves-Paul Nakache , Andreas Molisch , Jinyun Zhang
IPC分类号： H04L27/04
CPC分类号： H04L25/03866 , G01S13/0209 , H04B1/71632 , H04B1/7176 , H04B1/719 , H04B2001/6908
摘要： A method eliminates spectral lines in a time hopping ultra wide bandwidth signal. First, a train of pulses is generated from input symbols. The pulses are then modulated in time according to symbols. The modulation can use pulse position modulation and time hopping. A polarity of the pulses is inverted randomly before transmitting the pulses as an ultra wide bandwidth signal. By randomly inverting the polarity of the pulses spectral lines in the ultra wide bandwidth signal are eliminated.
摘要翻译：一种方法消除了跳时超宽带宽信号中的频谱线。首先，从输入符号生成一串脉冲。然后根据符号在时间上调制脉冲。调制可以使用脉冲位置调制和跳时。在作为超宽带宽信号发送脉冲之前，脉冲的极性被随机反转。通过随机反转脉冲的极性，超宽带宽信号中的谱线消除。

75. 发明授权

US07020446B2 Multiple antennas at transmitters and receivers to achieving higher diversity and data rates in MIMO systems 失效
标题翻译：在发射机和接收机上使用多个天线，以实现MIMO系统中更高的分集和数据速率
公开(公告)号：US07020446B2
公开(公告)日：2006-03-28
申请号：US10828625
申请日：2004-04-21
申请人： Neelesh B. Mehta , Pallav Sudarshan , Andreas F. Molisch , Jinyun Zhang
发明人： Neelesh B. Mehta , Pallav Sudarshan , Andreas F. Molisch , Jinyun Zhang
IPC分类号： H04B7/02
CPC分类号： H04B7/0667 , H04B7/061 , H04B7/0669 , H04B7/0673 , H04B7/0686 , H04B7/0691 , H04B7/0697 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0618
摘要： A method transmits an input stream of data symbols in a multiple-input, multiple-output wireless communications system. The input stream is demultiplexed into M substreams. Each of the M substreams is adaptively modulated and coded to a coded substream according to channel conditions. A first of the M coded substreams is space-time transmit diversity encoding into two space-time transmit diversity encoded substreams. There is one space-time transmit diversity encoded substream for each one of two transmit antennas. Each other coded substream is transmitted directly by a corresponding one of remaining M−1 transmit antenna.
摘要翻译：一种方法在多输入多输出无线通信系统中传输数据符号的输入流。输入流被解复用为M个子流。根据信道条件，M个子流中的每一个被自适应地调制并编码成编码子流。 M个编码子流中的第一个是时空发射分集编码成两个时空发射分集编码子流。对于两个发射天线中的每一个，存在一个时空发射分集编码子流。每个其他编码子流由剩余的M-1发射天线中的对应的一个直接传输。

76. 发明申请

US20060009229A1 Sequential coordinated channel access in wireless networks 审中-公开
标题翻译：无线网络中的顺序协调信道接入
公开(公告)号：US20060009229A1
公开(公告)日：2006-01-12
申请号：US10888398
申请日：2004-07-10
申请人： Yuan Yuan , Daqing Gu , Jinyun Zhang
发明人： Yuan Yuan , Daqing Gu , Jinyun Zhang
IPC分类号： H04Q7/20
CPC分类号： H04W72/14 , H04W72/1236 , H04W74/04 , H04W74/08
摘要： A method provides access to a channel in a network including stations and an access point connected by a common wireless channel. A station makes a request to the access point to access to the channel to transmit a data stream. The access point assigns a sequence index value to the data stream. The sequence index value is broadcast by the access point. Then, the station transmits the data stream, during a contention free period, at a time corresponding to the sequence index value.
摘要翻译：一种方法提供对包括站和通过公共无线信道连接的接入点的网络中的信道的访问。站点向接入点发出请求以访问信道以发送数据流。接入点将序列索引值分配给数据流。序列索引值由接入点广播。然后，站在无竞争期间，在与序列索引值对应的时间发送数据流。

77. 发明授权

US08674549B2 System and method for energy transfer 有权
标题翻译：能量转移系统和方法
公开(公告)号：US08674549B2
公开(公告)日：2014-03-18
申请号：US12686466
申请日：2010-01-13
申请人： Koon Hoo Teo , Jinyun Zhang
发明人： Koon Hoo Teo , Jinyun Zhang
IPC分类号： H01F27/42 , H01F37/00 , H01F38/00
CPC分类号： H04B5/0037 , H02J5/005 , H02J7/025 , H02J50/12 , H02J50/50
摘要： A system includes a structure configured to exchange the energy wirelessly via a coupling of evanescent waves. The structure is non-radiative, and generates an electromagnetic (EM) near-field in response to receiving the energy. The structure is configured to exchange the energy when the structure is in the resonant mode. The system also includes a tuning module configured to transition the structure in and out of the resonant mode based on an instruction, an energy monitor module configured to determine the instruction based on information indicative of the energy stored and/or exchange by the structure, and a transceiver configured to transmit and/or to receive the instruction.
摘要翻译：一种系统包括被配置为经由瞬逝波的耦合无线地交换能量的结构。该结构是非辐射的，并且响应于接收能量而产生电磁（EM）近场。该结构被配置为当结构处于谐振模式时交换能量。该系统还包括调谐模块，该调谐模块被配置为基于指令将结构转换到谐振模式中;能量监测模块被配置为基于指示由结构存储和/或交换的能量的信息来确定指令;以及配置为发送和/或接收指令的收发器。

78. 发明授权

US08483186B2 Method and system for generating antenna selection signals in wireless networks 有权
标题翻译：在无线网络中生成天线选择信号的方法和系统
公开(公告)号：US08483186B2
公开(公告)日：2013-07-09
申请号：US12495275
申请日：2009-06-30
申请人： Koon Hoo Teo , Neelesh B. Mehta , Jinyun Zhang
发明人： Koon Hoo Teo , Neelesh B. Mehta , Jinyun Zhang
IPC分类号： H04W72/04
CPC分类号： H04B7/061 , H04B7/0691 , H04L5/0023 , H04L5/0048 , H04L5/0092 , H04L25/0204 , H04L25/0226
摘要： Embodiments of the invention describe a method for antenna selection (AS) in a wireless communication network, the network comprising user equipment (UE), configured to transmit a sounding reference signal (SRS) from a subset of antennas at a time without transmitting user data. The method transmits a first SRS from a first subset of antennas in a first subframe, wherein the first subframe does not include the user data, and transmits a second SRS from a second subset of antennas in a second subframe, wherein the second subframe does not include the user data. After receiving, in response to the transmitting the first SRS and the second SRS, information identifying an optimal subset of antennas from the first subset of antennas and the second subset of antennas, the method selects the optimal set of antennas such that the optimal subset of antennas is selected without transmitting the user data.
摘要翻译：本发明的实施例描述了一种用于无线通信网络中的天线选择（AS）的方法，所述网络包括用户设备（UE），被配置为一次从天线子集发送探测参考信号（SRS），而不发送用户数据。该方法在第一子帧中从第一子天线发射第一SRS，其中第一子帧不包括用户数据，并且在第二子帧中从第二天线子集发送第二SRS，其中第二子帧不包括用户数据。在接收到响应于从第一天线子集和第二天线子集发送第一SRS和第二SRS之后识别天线的最佳子集的信息时，该方法选择最佳天线组，使得最佳子集在不发送用户数据的情况下选择天线。

79. 发明授权

US08284686B2 Antenna/beam selection training in MIMO wireless LANS with different sounding frames 有权
标题翻译：天线/波束选择训练在具有不同声音帧的MIMO无线LAN中
公开(公告)号：US08284686B2
公开(公告)日：2012-10-09
申请号：US12293458
申请日：2006-03-30
申请人： Daqing Gu , Hongyuan Zhang , Jinyun Zhang , Andreas F. Molisch
发明人： Daqing Gu , Hongyuan Zhang , Jinyun Zhang , Andreas F. Molisch
IPC分类号： H04W4/00
CPC分类号： H04B7/0691 , H04B7/0608 , H04B7/061 , H04B7/0626 , H04B7/0634 , H04B7/0636 , H04B7/0695 , H04B7/0874 , H04B7/088 , H04W84/12
摘要： A method selects antennas in a multiple-input, multiple-output (MIMO) wireless local area network (WLAN) that includes a plurality of stations, and each station includes a set of antennas. Plural consecutive packets, received at a station, include plural consecutive sounding packets. Each sounding packet corresponds to a different subset of the set of antennas, and at least one of the plural consecutive packets includes a high throughput (HT) control field including a signal to initiate antenna selection and a number N indicative of a number of sounding packets which follow the at least one packet including the HT control field and which are to be used for antenna selection. A channel matrix is estimated based on a characteristic of the channel as indicated by the received N sounding packets, and a subset of antennas is selected according to the channel matrix. Station and computer program product embodiments include similar features.
摘要翻译：一种方法选择包括多个站的多输入多输出（MIMO）无线局域网（WLAN）中的天线，并且每个站包括一组天线。在站处接收的多个连续分组包括多个连续的探测分组。每个探测分组对应于该组天线的不同子集，并且多个连续分组中的至少一个分组包括高吞吐量（HT）控制字段，包括用于发起天线选择的信号和指示多个探测分组的数量N 其遵循至少一个包括HT控制字段并将用于天线选择的分组。基于由接收的N个探测分组指示的信道的特性来估计信道矩阵，并且根据信道矩阵选择天线的子集。站和计算机程序产品实施例包括类似的特征。

80. 发明授权

US08218523B2 Cooperative ultra-reliable wireless communications 有权
标题翻译：合作超可靠的无线通信
公开(公告)号：US08218523B2
公开(公告)日：2012-07-10
申请号：US12419874
申请日：2009-04-07
申请人： Zhifeng Tao , Philip V. Orlik , Zafer Sahinoglu , Andreas F. Molisch , Jinyun Zhang
发明人： Zhifeng Tao , Philip V. Orlik , Zafer Sahinoglu , Andreas F. Molisch , Jinyun Zhang
IPC分类号： H04J3/16
CPC分类号： H04L1/1621 , H04L27/26 , H04L2001/0093 , H04L2001/0097
摘要： A network includes a master node (master) and a set of slave nodes (slaves). The network uses orthogonal frequency-division multiplexing (OFDM) and time division multiple access (TDMA) symbols on sub-carriers. During a first downlink transmission from the master to the set of slaves using downlinks and all of the sub-carriers, a broadcast polling packet including data packets for each slave and sub-carrier assignments for the slaves is broadcast. Each slave transmits simultaneously to the master using uplinks and the assigned sub-carriers, a first response packet after receiving the broadcast polling packet. The master then broadcasts using the downlinks and all of the sub-carriers, a group acknowledgement packet, wherein the broadcast polling packet, the response packet, and the group acknowledgement packet include one superframe in one communication cycle, and wherein the broadcasting on the downlinks and the transmitting on the uplinks are disjoint in time.
摘要翻译：网络包括主节点（主节点）和一组从节点（从节点）。该网络在子载波上使用正交频分复用（OFDM）和时分多址（TDMA）符号。在使用下行链路和所有子载波从主机到从机组的第一次下行链路传输期间，广播包括用于每个从机的数据分组的广播轮询分组和用于从机的子载波分配。每个从设备使用上行链路和分配的子载波同时发送到主设备，第一响应分组在接收到广播轮询分组之后。然后主机使用下行链路和所有子载波，一组确认分组广播，其中广播轮询分组，响应分组和组确认分组在一个通信周期中包括一个超帧，并且其中在下行链路上进行广播并且在上行链路上的发送在时间上是不相交的。

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