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61. 发明申请

US20090129501A1 Optimal signaling and selection verification for transmit antenna selection with erroneous feedback 审中-公开
标题翻译：用于发送天线选择的错误反馈的最优信令和选择验证
公开(公告)号：US20090129501A1
公开(公告)日：2009-05-21
申请号：US11990650
申请日：2005-08-19
申请人： Neelesh B. Mehta , Yabo Li , Andreas F. Molisch , Jinyun Zhang
发明人： Neelesh B. Mehta , Yabo Li , Andreas F. Molisch , Jinyun Zhang
IPC分类号： H04L27/00
CPC分类号： H04B7/061
摘要： A method is provided for receiving data at a receiver via a communication channel from a transmitter having at least two transmitter antennas, the method including: receiving (S204) a codebook including an assignment of at least two respective codewords to the at least two transmitter antennas, the assignment being based at least in part on a characteristic of the communication channel; detecting a state of the communication channel by which the receiver can communicate with the transmitter; selecting (S206) at least one desired transmitter antenna from the at least two antennas based at least in part on the detected state of the communication channel; transmitting (S208) to the transmitter a codeword corresponding to the at least one desired transmitter antenna; and receiving (S210) data at the receiver transmitted by the transmitter.
摘要翻译：提供了一种用于经由来自具有至少两个发射机天线的发射机的通信信道在接收机处接收数据的方法，所述方法包括：接收（S204）包括至少两个相应码字的分配的码本到所述至少两个发射机天线所述分配至少部分地基于所述通信信道的特性; 检测接收机可以与发射机通信的通信信道的状态; 至少部分地基于所检测到的通信信道的状态，从所述至少两个天线中选择（S206）至少一个期望的发射机天线; 向所述发射机发送对应于所述至少一个所需发射机天线的码字（S208）; 以及在由发射机发送的接收机处接收（S210）数据。

62. 发明申请

US20090074088A1 Adaptive Fragmentation for HARQ in Wireless OFDMA Networks 审中-公开
标题翻译：无线OFDMA网络中HARQ的自适应分段
公开(公告)号：US20090074088A1
公开(公告)日：2009-03-19
申请号：US11854790
申请日：2007-09-13
申请人： Zhifeng Tao , Anfei Li , Koon Hoo Teo , Jinyun Zhang
发明人： Zhifeng Tao , Anfei Li , Koon Hoo Teo , Jinyun Zhang
IPC分类号： H04J11/00 , H03M13/03 , H04L27/28
CPC分类号： H04L1/1812 , H04L1/0007 , H04L27/2601
摘要： A method performs a hybrid automatic repeat-request (HARQ) operation in a wireless orthogonal frequency division multiple access (OFDMA) network. A quality of a channel between a transmitter and a receiver is estimated as an error metric. A packet for the HARQ operation is fragmented adaptively at the transmitter according to the estimated error metric. The fragmentation is performed at the HARQ layer when the error metric is less than a predetermined threshold, otherwise the fragmentation is performed at the MAC layer.
摘要翻译：一种方法在无线正交频分多址（OFDMA）网络中执行混合自动重传请求（HARQ）操作。发射机和接收机之间的信道的质量被估计为误差度量。用于HARQ操作的分组根据估计的误差度量在发射机处被自适应地分段。当错误度量小于预定阈值时，在HARQ层执行分段，否则在MAC层执行分段。

63. 发明申请

US20090016372A1 Signaling and Training for Antenna Selection in OFDMA Networks 有权
标题翻译： OFDMA网络中天线选择的信令和训练
公开(公告)号：US20090016372A1
公开(公告)日：2009-01-15
申请号：US12117219
申请日：2008-05-08
申请人： Zhifeng Tao , Andreas F. Molisch , Philip V. Orlik , Jinyun Zhang , Shigeru Uchida , Kentarou Sawa
发明人： Zhifeng Tao , Andreas F. Molisch , Philip V. Orlik , Jinyun Zhang , Shigeru Uchida , Kentarou Sawa
IPC分类号： H04J3/16
CPC分类号： H04B7/0874 , H04B7/063 , H04B7/0691 , H04L5/0007
摘要： A method selects antennas in an OFDMA wireless network including a base station and a mobile station. The mobile station measures a channel state of a downlink in a downlink subframe using different subsets of available antennas, and selects a subset of receive antennas for downlink reception based on the channel states between the base station and the different subsets of antennas at the mobile station. The base station measures the channel state in an uplink using an uplink subframe received in the base station from the mobile station, and selects a subset of transmit antennas for mobile station's uplink transmission based on the channel states between the base station and different subset of antennas at the mobile station.
摘要翻译：一种方法选择包括基站和移动台的OFDMA无线网络中的天线。移动站使用不同的可用天线子集来测量下行链路子帧中的下行链路的信道状态，并且基于移动站的基站和不同的天线子集之间的信道状态来选择用于下行链路接收的接收天线的子集。基站使用来自移动站的基站中接收到的上行链路子帧来测量上行链路中的信道状态，并且基于基站和不同的天线子集之间的信道状态来选择用于移动台的上行链路传输的发射天线的子集在移动台。

64. 发明授权

US07443925B2 Pilot and data signals for MIMO systems using channel statistics 失效
标题翻译：使用信道统计的MIMO系统的导频和数据信号
公开(公告)号：US07443925B2
公开(公告)日：2008-10-28
申请号：US10895167
申请日：2004-07-20
申请人： Neelesh B. Mehta , Fadel F. Digham , Andreas F. Molisch , Jinyun Zhang
发明人： Neelesh B. Mehta , Fadel F. Digham , Andreas F. Molisch , Jinyun Zhang
IPC分类号： H04L27/04
CPC分类号： H04B7/0417 , H04B7/0443 , H04B7/0615 , H04B7/0626 , H04L1/0687 , H04W52/42
摘要： A method generates signals in a transmitter of a multiple-input, multiple-output wireless communications system. The transmitter includes Nt transmit antennas. A transmit covariance matrix Rt determined using statistical state information of a channel. The transmit covariance Rt matrix is decomposed using transmit eigenvalues Λt to obtain a transmit eigenspace Ut according to Rt=UtΛtU†t, where † is a Hermitian transpose. A pilot eigenspace Up is set equal to the transmit eigenspace Ut. A NtxTp block of pilot symbols Xp is generated from the pilot eigenspace Up and pilot eigenvalue Λp according to Xp=UpΛp1/2. A data eigenspace Ud is set equal to the transmit eigenspace Ut. In addition, a Nt×Nt data covariance matrix Qd is generated according to UdΛdU†d, where Λd are data eigenvalues. A NtxTd block of data symbols is generated, such that an average covariance of each of the columns in the block of data symbols Xd equals the data covariance matrix Qd. The block of pilot and data symbols form the signals to be transmitted.
摘要翻译：一种方法在多输入多输出无线通信系统的发射机中产生信号。发射机包括N T个发射天线。使用信道的统计状态信息确定发送协方差矩阵R t t。使用发射特征值λλt来分解发射协方差矩阵，以获得根据R t的t 1的发送本征空间U T t，其中†是Hermitian转置。其中†是Hermitian转置。飞行员本征空间U P p被设置为等于发射本征空间U T t。从导频符号空间U P1和导频特征值Lambda生成导频符号X P p P块的导频符号X P＆lt; P＆lt;＆lt; 根据X＆lt; p＆lt; p＆lt; p＆lt; p＆lt; p＆lt; p＆gt;＆lt; 1/2＆gt; 数据本征空间U D D被设置为等于发送本征空间U T t。另外，根据U SUB ambda is is is is is is is is is is is is is is is is is SUB is according according according according according according according according according according according according according according according according according according according according according according according according according 其中λλd是数据特征值。生成数据符号块，使得数据符号块X中的每个列的平均协方差为等于数据协方差矩阵Q 。导频块和数据符号块形成要传输的信号。

65. 发明申请

US20080212513A1 Protocol Data Units and Header in Multihop Relay Network 有权
标题翻译：多跳中继网络中的协议数据单元和报头
公开(公告)号：US20080212513A1
公开(公告)日：2008-09-04
申请号：US11770327
申请日：2007-06-28
申请人： Zhifeng Tao , Jinyun Zhang
发明人： Zhifeng Tao , Jinyun Zhang
IPC分类号： H04J3/08
CPC分类号： H04L69/324 , H04L69/22 , H04W88/04
摘要： The invention provides a data structure embodied in a computer readable media. The data structure is a protocol data packet (PDU) communicated in a mobile multihop network between stations. The data structure includes a relay media access header, a payload and an optional cyclical redundancy checksum for the protocol data unit; and an indication whether the PDU is a relay media access protocol data unit or not.
摘要翻译：本发明提供一种体现在计算机可读介质中的数据结构。数据结构是在站之间的移动多跳网络中通信的协议数据分组（PDU）。数据结构包括用于协议数据单元的中继媒体接入报头，有效载荷和可选的循环冗余校验和; 以及PDU是否为中继媒体接入协议数据单元的指示。

66. 发明申请

US20080166974A1 Space-Time-Frequency Sensing of RF Spectrum in Cognitive Radios 失效
标题翻译：认知无线电射频频谱的时空频率检测
公开(公告)号：US20080166974A1
公开(公告)日：2008-07-10
申请号：US11620759
申请日：2007-01-08
申请人： Koon Hoo Teo , Hongyuan Zhang , Yves-Paul N. Nakache , Jinyun Zhang
发明人： Koon Hoo Teo , Hongyuan Zhang , Yves-Paul N. Nakache , Jinyun Zhang
IPC分类号： H04B17/00
CPC分类号： H04W72/046 , H04L5/0062 , H04L27/0006 , H04W16/28 , H04W24/00 , H04W72/085
摘要： A method detects unused frequency bands in a cognitive radio network. Multiple frequency bands for RF signals are sensed using an antenna array including a plurality of elements coupled to a receive RF chain, in which the plurality of elements are individually controllable. For each frequency band, multiple spatial directions are sensed for the RF signals using the antenna array. A particular frequency band and a particular direction and a particular time slot are assigned as an available frequency band, an available direction and a particular time slot for transmitting RF signals in a cognitive radio if the RF signals are not sensed in the particular spatial direction for the particular frequency band, and in which the RF signals are transmitted by a transmit chain connected to the antenna array.
摘要翻译：一种方法检测认知无线电网络中的未使用频带。使用包括耦合到接收RF链的多个元件的天线阵列感测用于RF信号的多个频带，其中多个元件可单独地控制。对于每个频带，使用天线阵列检测RF信号的多个空间方向。如果在特定空间方向上没有感测到RF信号，则将特定频带和特定方向以及特定时隙分配为可用频带，可用方向和用于在认知无线电中发送RF信号的特定时隙特定频带，并且其中通过连接到天线阵列的发射链发射RF信号。

67. 发明申请

US20080031250A1 Energy accumulation in destination nodes of wireless relay networks 审中-公开
标题翻译：无线中继网络目的地节点的能量积累
公开(公告)号：US20080031250A1
公开(公告)日：2008-02-07
申请号：US11497987
申请日：2006-08-01
申请人： Neelesh B. Mehta , Raymond Yim , Andreas F. Molisch , Jinyun Zhang
发明人： Neelesh B. Mehta , Raymond Yim , Andreas F. Molisch , Jinyun Zhang
IPC分类号： H04L12/56
CPC分类号： H04L45/24 , H04L1/08 , H04L2001/0096 , H04W40/02 , Y02D30/20 , Y02D70/22 , Y02D70/30
摘要： A method for transmitting packets from a source node to a destination node via relay nodes of a wireless network. Packets are transmitted from the source node, along a route of relays nodes, to the destination node in a wireless network. Energy of the packets is accumulated only in the destination node by storing multiple versions of the packet. The packets are decoded in the destination node using the accumulated energy.
摘要翻译：一种用于经由无线网络的中继节点从源节点向目的地节点发送分组的方法。分组从源节点沿着中继节点的路由发送到无线网络中的目的地节点。通过存储分组的多个版本，分组的能量仅在目的地节点中累积。使用累积的能量在目的地节点中解码分组。

68. 发明授权

US07328026B2 Signaling in a wireless network with sequential coordinated channel access 有权
标题翻译：在具有顺序协调通道访问的无线网络中进行信令
公开(公告)号：US07328026B2
公开(公告)日：2008-02-05
申请号：US10915801
申请日：2004-08-11
申请人： Daqing Gu , Zhifeng Tao , Jinyun Zhang
发明人： Daqing Gu , Zhifeng Tao , Jinyun Zhang
IPC分类号： H04Q7/20
CPC分类号： H04L47/824 , H04L47/14 , H04L47/15 , H04L47/70 , H04L47/72 , H04L47/765 , H04L47/788 , H04W28/20 , H04W74/04 , H04W74/0808 , H04W74/0866
摘要： A method signals data in a channel of a network including multiple stations and an access point connected by a wireless channel. A station first requests access to the channel using a sequential coordinated channel access method of an access point. After the station receives permission to access the channel during a contention free period at a time corresponding to a sequence index value received by the station from the access point, the station transmits a resource request message to the access point to obtain a bandwidth allocation. In response, the station receives the bandwidth allocation, and the station can then transmit data during the contention free period according to the bandwidth allocation.
摘要翻译：一种方法是在包括多个站的网络的信道中的信号和由无线信道连接的接入点的信号。首先，使用接入点的顺序协调信道接入方法请求接入信道。在与站点从接入点接收到的序列索引值相对应的时间段内，在无竞争阶段期间接收到访问信道的许可之后，站向接入点发送资源请求消息以获得带宽分配。作为响应，站接收带宽分配，然后站可以根据带宽分配在无竞争期间发送数据。

69. 发明授权

US07327983B2 RF-based antenna selection in MIMO systems 有权
标题翻译： MIMO系统中基于RF的天线选择
公开(公告)号：US07327983B2
公开(公告)日：2008-02-05
申请号：US10877686
申请日：2004-06-25
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： H04B1/10 , H04B15/00
CPC分类号： H04B7/0417 , H01Q3/26 , H04B7/0626 , H04B7/0691 , H04B7/0697 , H04B7/0848 , H04B7/0874 , H04L1/0036 , H04L1/0625 , H04L1/0631
摘要： A method is presented for processing signals of a multiple-input, multiple-output communications system in the RF domain. The system includes multiple transmit antennas and multiple receive antennas connected by a wireless channel. A matrix M is generated based on long-term characteristics of the wireless channel. The matrix M is multiplied times input RF signals to obtain output RF signals. The matrix can be generated in a transmitter, a receiver, or both.
摘要翻译：提出了一种用于处理RF域中的多输入多输出通信系统的信号的方法。该系统包括通过无线信道连接的多个发射天线和多个接收天线。基于无线信道的长期特性生成矩阵M. 矩阵M乘以输入RF信号，以获得输出RF信号。矩阵可以在发射机，接收机或两者中生成。

70. 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

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