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公开(公告)号：US20060209672A1
公开(公告)日：2006-09-21
申请号：US11410769
申请日：2006-04-25
申请人： Vahid Tarokh , Tharmalingam Ratnarajah , Wen Tong
发明人： Vahid Tarokh , Tharmalingam Ratnarajah , Wen Tong
IPC分类号： H04J11/00
CPC分类号： H04L27/2601 , H04L1/0618
摘要： The present invention relates to employing OFDM modulation in combination with spatial diversity and space-time block coding to provide high data rates and exceptional interference immunity. For transmission, quadrature modulated data is encoded in space and time to create individual series of encoded symbols. Each of these series of encoded symbols is subjected to a type of inverse Fourier Transform in corresponding transmission paths. In each transmission path, cyclic extensions may be appended to the resultant symbols, which are subsequently converted to an analog format, modulated, amplified, and transmitted from one of multiple antennas. Preferably, such communications are implemented from base stations to mobile terminals in an environment where the frequency reuse factor is approximately one and the base stations are synchronized to a common clock signal.
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2.发明授权Apparatus and method for encoding and decoding data within wireless networks 有权用于在无线网络内对数据进行编码和解码的装置和方法公开(公告)号：US06865373B2
公开(公告)日：2005-03-08
申请号：US10144950
申请日：2002-05-14
申请人： Wen Tong , Vahid Tarokh
发明人： Wen Tong , Vahid Tarokh
CPC分类号： H04L1/0618
摘要： The present invention is directed to apparatus and method for encoding and decoding data within a wireless network such that a MS preferably does not require multiple receivers to handle communications from BTSs with varying numbers of antennas. In embodiments of the present invention, a space-time matrix is utilized to encode the data streams being transmitted from a BTS such that a BTS with fewer antennas would simply have an encoding matrix with one or more of the columns or rows removed from the matrix. In this way, the MSs within the wireless network can be designed to decode with the use of only a single space-time encoding matrix, this space-time encoding matrix working for BTSs with various numbers of antennas.
摘要翻译： 本发明涉及用于对无线网络内的数据进行编码和解码的装置和方法，使得MS优选地不需要多个接收机来处理具有不同数量天线的BTS的通信。 在本发明的实施例中，使用时空矩阵来对从BTS发送的数据流进行编码，使得具有较少天线的BTS将简单地具有编码矩阵，其中一个或多个列或行从矩阵中移除 。 以这种方式，无线网络内的MS可以被设计为仅使用单个时空编码矩阵进行解码，该时空编码矩阵为具有各种数量天线的BTS工作。
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公开(公告)号：US07397864B2
公开(公告)日：2008-07-08
申请号：US10251935
申请日：2002-09-20
申请人： Vahid Tarokh , Ming Jia , Wen Tong , Peiying Zhu , Jianglei Ma
发明人： Vahid Tarokh , Ming Jia , Wen Tong , Peiying Zhu , Jianglei Ma
IPC分类号： H04L27/00
CPC分类号： H04L1/1841 , H04L1/0625 , H04L1/1816 , H04L1/1819 , H04L1/1845 , H04L1/1893
摘要： The present invention relates to space-time coding techniques capable of providing incremental redundancy in wireless communication environments incorporating spatial and temporal diversity. In general, a transmitter sends packets, via blocks of symbols, to a receiver with high bandwidth efficiency and only in the event that the receiver does not correctly receive a data packet does the transmitter send additional symbols to assist with the decoding of the incorrectly received packet. A hybrid ARQ feedback mechanism is used such that the receiver can inform the transmitter whether the packets were correctly or incorrectly received. From the feedback, the transmitter can determine whether to send new symbols or initiate incremental redundancy. By combining the received words corresponding to the redundant symbols and those of the original packet transmission, additional diversity, coding gain, signal energy, or a combination thereof are provided to the receiver and are used to correctly decode the transmitted data.
摘要翻译： 本发明涉及能够在包含空间和时间分集的无线通信环境中提供增量冗余的时空编码技术。 通常，发射机通过符号块将数据包发送到具有高带宽效率的接收机，并且仅在接收机不正确地接收数据分组的情况下，发射机发送附加符号以帮助解码错误接收 包。 使用混合ARQ反馈机制，使得接收机可以通知发射机是否正确或不正确地接收分组。 从反馈中，发射机可以确定是发送新符号还是启动增量冗余。 通过将对应于冗余符号的接收到的字与原始分组传输的字组合，将附加分集，编码增益，信号能量或其组合提供给接收机，并用于正确解码发送的数据。
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公开(公告)号：US07061854B2
公开(公告)日：2006-06-13
申请号：US09977540
申请日：2001-10-15
申请人： Vahid Tarokh , Tharmalingam Ratnarajah , Wen Tong
发明人： Vahid Tarokh , Tharmalingam Ratnarajah , Wen Tong
IPC分类号： H04J11/00
CPC分类号： H04L27/2601 , H04L1/0618
摘要： The present invention relates to employing OFDM modulation in combination with spatial diversity and space-time block coding to provide high data rates and exceptional interference immunity. For transmission, quadrature modulated data is encoded in space and time to create individual series of encoded symbols. Each of these series of encoded symbols is subjected to a type of inverse Fourier Transform in corresponding transmission paths. In each transmission path, cyclic extensions may be appended to the resultant symbols, which are subsequently converted to an analog format, modulated, amplified, and transmitted from one of multiple antennas. Preferably, such communications are implemented from base stations to mobile terminals in an environment where the frequency reuse factor is approximately one and the base stations are synchronized to a common clock signal.
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公开(公告)号：US11722589B2
公开(公告)日：2023-08-08
申请号：US16843612
申请日：2020-04-08
IPC分类号： G06F16/23 , H04W4/40 , H04L29/08 , G06F16/27 , G06F16/901 , H04L69/325 , H04L67/104
CPC分类号： H04L69/325 , G06F16/2365 , H04L67/104 , H04W4/40
摘要： A computing device functions as a member of a distributed database system implemented using a wireless network. A member version of a chain graph is stored at the computing device. The chain graph includes events created by the computing device and events received through the wireless network from other computing devices that are members of the distributed database system. The computing device determines if it is a member of a voting committee that comprises only a subset of the computing devices that are members of the distributed database system. When the computing device is a member of a voting committee, it participates in a distributed consensus algorithm with other members of the voting committee using the wireless network to define an order of the events in the chain graph and stores that order as a new event in the member version of the chain graph.
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公开(公告)号：US11700518B2
公开(公告)日：2023-07-11
申请号：US16884892
申请日：2020-05-27
申请人： Wuxian Shi , Yiqun Ge , Wen Tong , Qifan Zhang
发明人： Wuxian Shi , Yiqun Ge , Wen Tong , Qifan Zhang
摘要： Methods and apparatuses for feature-driven communications are described. A set of features describing an observed subject is transmitted by a transmitting electronic device (ED) to a base station (BS). The BS translates the received features to another set of transmission features to be transmitted to a receiving ED. The receiving ED recovers information about the subject from the features received from the BS.
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7.发明授权公开(公告)号：US11424856B2
公开(公告)日：2022-08-23
申请号：US16929477
申请日：2020-07-15
申请人： Yiqun Ge , Wuxian Shi , Wen Tong
发明人： Yiqun Ge , Wuxian Shi , Wen Tong
摘要： A method and apparatus for encoding source information for transmission over a transmission channel is disclosed. The method involves causing a source encoder to generate a plurality of feature probability distributions representing aspects of the source information. The method also involves receiving the plurality of feature probability distributions at an input of a distribution channel encoder, the distribution channel encoder being implemented using a polarization stream network. The method further involves causing the distribution channel encoder to transform the plurality of feature probability distributions into a dimension-extended output plurality of distribution codewords for transmission over the transmission channel. Methods and apparatus for decoding the output plurality of distribution codewords to regenerate the source information is also disclosed.
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公开(公告)号：US10945274B2
公开(公告)日：2021-03-09
申请号：US15454758
申请日：2017-03-09
申请人： Liqing Zhang , Jianglei Ma , Kelvin Kar Kin Au , Wen Tong
发明人： Liqing Zhang , Jianglei Ma , Kelvin Kar Kin Au , Wen Tong
摘要： Methods of bandwidth utilization are provided. Within a scheduling bandwidth, which may be an entire carrier bandwidth or a sub-band, scheduling is used to reserve a guard zone at the edge of the scheduled bandwidth. This can be based on the frequency localization capabilities of a transmitter that is to be scheduled. The guard zone may be defined to a resolution that is the same as the scheduling resolution in which case the guard zone is defined entirely through scheduling. Alternatively, the guard zone may be defined to a resolution smaller than the scheduling resolution in which case scheduling and further signaling may be employed to define the guard zone.
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公开(公告)号：US20190052431A1
公开(公告)日：2019-02-14
申请号：US16165450
申请日：2018-10-19
申请人： Kelvin Kar Kin Au , Liqing Zhang , Mohammadhadi Baligh , Jianglei Ma , Wen Tong
发明人： Kelvin Kar Kin Au , Liqing Zhang , Mohammadhadi Baligh , Jianglei Ma , Wen Tong
摘要： A method and system for operating a user equipment (UE) wherein a first set of radio access procedures are supported when the UE is in a first operating state, and a second set of radio access procedures are supported when the UE is in a second operating state.
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公开(公告)号：US20190052430A1
公开(公告)日：2019-02-14
申请号：US16165378
申请日：2018-10-19
申请人： Kelvin Kar Kin Au , Liqing Zhang , Mohammadhadi Baligh , Jianglei Ma , Wen Tong
发明人： Kelvin Kar Kin Au , Liqing Zhang , Mohammadhadi Baligh , Jianglei Ma , Wen Tong
摘要： A method and system for operating a user equipment (UE) wherein a first set of radio access procedures are supported when the UE is in a first operating state, and a second set of radio access procedures are supported when the UE is in a second operating state.
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