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31. 发明授权

US06351499B1 Method and wireless systems using multiple antennas and adaptive control for maximizing a communication parameter 有权
标题翻译：使用多个天线的方法和无线系统以及最大化通信参数的自适应控制
公开(公告)号：US06351499B1
公开(公告)日：2002-02-26
申请号：US09464372
申请日：1999-12-15
申请人： Arogyaswami J. Paulraj , Peroor K. Sebastian , David J. Gesbert , Jose Tellado
发明人： Arogyaswami J. Paulraj , Peroor K. Sebastian , David J. Gesbert , Jose Tellado
IPC分类号： H04B702
CPC分类号： H04B7/0891 , H01Q1/246 , H01Q3/2605 , H04B7/0669 , H04B7/0673 , H04B7/0697 , H04B7/0857 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/06 , H04L1/0606 , H04L1/0618
摘要： A method of maximizing a communication parameter, such as data capacity, signal quality or throughput of a channel between a transmit unit with M transmit antennas and a receive unit with N receive antennas and a communication system such as a wireless network (including networks with multiple access techniques such as TDMA, FDMA, CDMA, OFDMA) employing the method. The data is first processed to produce parallel spatial-multiplexed streams SMi, where i=1 . . . k, which are converted or mapped to transmit signals TSp, where p=1 . . . M, assigned for transmission from the M transmit antennas. Corresponding receive signals RSj, where j=1 . . . N, are received by the N receive antennas of the receiver and used to assess a quality parameter, such as a statistical signal parameter including SINR, SNR, power level, level crossing rate, level crossing duration of the signal of a predetermined threshold and reception threshold, or a parameter of the data, such as BER or packet error rate. The quality parameter is used to adaptively adjust k as well as other parameters such as coding and mapping to transmit antennas such that the communication parameter of the channel is maximized.
摘要翻译：使具有M个发送天线的发送单元和具有N个接收天线的接收单元之间的信道的数据容量，信号质量或吞吐量等通信参数最大化的方法以及诸如无线网络的通信系统（包括具有多个接入技术，如TDMA，FDMA，CDMA，OFDMA）。首先处理数据以产生并行空间复用流SMi，其中i = 1。。。 k，其被转换或映射到发射信号TSp，其中p = 1。。。 M，被分配用于从M个发射天线发射。相应的接收信号RSj，其中j = 1。。。 N由接收机的N个接收天线接收并且用于评估质量参数，诸如包括SINR，SNR，功率电平，电平穿越率，预定阈值的信号的电平穿越持续时间和接收的统计信号参数阈值或数据的参数，例如BER或分组错误率。质量参数用于自适应地调整k以及其他参数，例如编码和映射到发射天线，使得信道的通信参数最大化。

32. 发明授权

US08345637B2 Wireless communications system that supports multiple modes of operation 有权
标题翻译：支持多种操作模式的无线通信系统
公开(公告)号：US08345637B2
公开(公告)日：2013-01-01
申请号：US12496922
申请日：2009-07-02
申请人： Robert W. Heath , Rajeev Krishnamoorthy , Arogyaswami J. Paulraj , Peroor K. Sebastian
发明人： Robert W. Heath , Rajeev Krishnamoorthy , Arogyaswami J. Paulraj , Peroor K. Sebastian
IPC分类号： H04W4/00
CPC分类号： H04W72/042 , H04W16/14 , H04W24/00 , H04W24/10 , H04W48/18 , H04W72/0413 , H04W88/06
摘要： A wireless communications adapts its mode of operation between spatial multiplexing and non-spatial multiplexing in response to transmission-specific variables. An embodiment of a wireless communications system for transmitting information between a base transceiver station and a subscriber unit includes mode determination logic. The mode determination logic is in communication with the base transceiver station and the subscriber unit. The mode determination logic determines, in response to a received signal, if a subscriber data stream should be transmitted between the base transceiver station and the subscriber unit utilizing spatial multiplexing or non-spatial multiplexing.
摘要翻译：无线通信响应于传输特定变量，适应其在空间复用和非空间复用之间的操作模式。用于在基站和用户单元之间发送信息的无线通信系统的实施例包括模式确定逻辑。模式确定逻辑与基站收发台和用户单元通信。模式确定逻辑响应于所接收的信号，确定在基站收发台和订户单元之间是否应利用空间复用或非空间复用来发送用户数据流。

33. 发明授权

US07209745B1 Cellular wireless re-use structure that allows spatial multiplexing and diversity communication 有权
标题翻译：蜂窝无线重用结构，允许空间复用和分集通信
公开(公告)号：US07209745B1
公开(公告)日：2007-04-24
申请号：US09591015
申请日：2000-06-09
申请人： Peroor K. Sebastian , Arogyaswami J. Paulraj
发明人： Peroor K. Sebastian , Arogyaswami J. Paulraj
IPC分类号： H04Q7/20
CPC分类号： H04W16/06 , H04B7/04 , H04W16/12
摘要： The present invention includes a cellular wireless re-use communication system. The communication system includes a base transceiver station cluster. The base transceiver station cluster includes a first plurality of base station transceivers and a plurality of common channel areas. Each common channel area includes a unique set of common assigned channels. Each common channel area further includes at least one subscriber unit. Each subscriber unit within the common channel area receives information signals from a second plurality of base station transceivers through one of the set of common assigned channels that correspond to the common channel area. The common assigned channel includes common transmission characteristics. The common transmission characteristic can include a transmission frequency, a transmission time or a transmission code. The second plurality of base station transceivers can be physically located within the same common channel area that a corresponding subscriber unit receiving information from the second plurality of base station transceivers is located. Alternatively, at least one of the second plurality of base station transceivers can be physically located outside of the common channel area that a corresponding subscriber unit receiving information from the second plurality of base station transceivers is located.
摘要翻译：本发明包括蜂窝无线重用通信系统。通信系统包括基站收发器群集。基站收发机集群包括第一多个基站收发机和多个公共信道区域。每个公共信道区域包括一组唯一的公共分配信道。每个公共信道区域还包括至少一个用户单元。公共信道区域内的每个用户单元通过与公共信道区域对应的一组公共分配的信道之一从第二多个基站收发信机接收信息信号。公共分配的信道包括公共传输特性。公共传输特性可以包括传输频率，传输时间或传输码。第二组多个基站收发机可以物理地位于相应的公共信道区域内，相应的用户单元从第二多个基站收发器接收信息。或者，第二多个基站收发机中的至少一个可以物理地位于公共信道区域外部，相应的用户单元从第二多个基站收发器接收信息所在的位置。

34. 发明授权

US06442214B1 Diversity transmitter based on linear transform processing of transmitted information 有权
标题翻译：基于传输信息的线性变换处理的分集发射机
公开(公告)号：US06442214B1
公开(公告)日：2002-08-27
申请号：US09574498
申请日：2000-05-19
申请人： Helmut Boleskei , Peroor K. Sebastian , Shilpa Talwar , Arogyaswami J. Paulraj
发明人： Helmut Boleskei , Peroor K. Sebastian , Shilpa Talwar , Arogyaswami J. Paulraj
IPC分类号： H04L2704
CPC分类号： H04B7/0854 , H04B7/10 , H04B7/12 , H04L27/2602
摘要： The present invention provides a diversity transmission system. The diversity transmission system includes a diversity transmitter receiving incoming symbols. The diversity transmitter includes at least one transmitter antenna transmitting a plurality of multi-carrier modulated signals. Each multi-carrier-modulated signal includes a corresponding processed symbol sub-block stream. Each symbol of the processed symbol sub-block stream is based on a linear transform of a plurality of incoming symbols. The diversity transmission system further includes a diversity receiver. The diversity receiver includes at least one receiver antenna receiving the plurality of multi-carrier modulated signals after the multi-carrier modulated signals having been modified by transmission channels between the transmitter antennas and the receiver antenna. The diversity receiver further includes at least one multi-carrier demodulator for demodulating the received multi-carrier modulated signals and generating a demodulated symbol stream. A symbol-processing unit receives the demodulated symbol stream and generates a stream of outgoing symbols. The invention also includes a diversity transmitter. The diversity transmitter includes a symbol-processing unit for receiving a stream of incoming symbols and generating a plurality of processed symbol streams. The processed symbol streams are based on linear transforms of the incoming symbols. A plurality of multi-carrier modulators generate a plurality of multiple-carrier modulated signals. Each multi-carrier modulator receives a corresponding processed symbol stream and generates a multiple-carrier-modulated signal based on the corresponding processed symbol stream.
摘要翻译：本发明提供一种分集传输系统。分集传输系统包括接收输入符号的分集发射机。分集发射机包括发送多个多载波调制信号的至少一个发射机天线。每个多载波调制信号包括相应的处理符号子块流。经处理的符号子块流的每个符号基于多个输入符号的线性变换。分集传输系统还包括分集接收机。分集接收机包括至少一个在多载波调制信号已被发射机天线和接收机天线之间的传输信道修改的接收多载波调制信号的接收天线。分集接收机还包括至少一个多载波解调器，用于解调所接收的多载波调制信号并产生解调符号流。符号处理单元接收解调的符号流并产生输出符号流。本发明还包括分集发射机。分集发射机包括用于接收输入符号流并生成多个经处理符号流的符号处理单元。经处理的符号流基于输入符号的线性变换。多个多载波调制器产生多个多载波调制信号。每个多载波调制器接收对应的经处理符号流，并且基于对应的经处理符号流生成多载波调制信号。

35. 发明授权

US06400699B1 Transmission scheduler for a multiple antenna wireless cellular network 失效
标题翻译：用于多天线无线蜂窝网络的传输调度器
公开(公告)号：US06400699B1
公开(公告)日：2002-06-04
申请号：US09660246
申请日：2000-09-12
申请人： Manish Airy , Baraa Al-Dabagh , Jose Tellado , Partho Mishra , John Fan , Peroor K. Sebastian , Arogyaswami J. Paulraj
发明人： Manish Airy , Baraa Al-Dabagh , Jose Tellado , Partho Mishra , John Fan , Peroor K. Sebastian , Arogyaswami J. Paulraj
IPC分类号： H04Q700
CPC分类号： H04W72/1263 , H04B7/0613 , H04L5/0023 , H04L5/0044 , H04L5/0064
摘要： The invention includes an apparatus and method for scheduling wireless transmission of data blocks between at least one antenna of a base transceiver station and multiple subscriber units. The scheduling can be based on the quality of a transmission link between the base station antennas and the subscriber units, the amount of data requested by the subscriber units, and/or the type of data requested by the subscriber units. The scheduling generally includes assigning frequency blocks and time slots to each of the subscriber units for receiving or transmitting data blocks. The invention includes a method for transmitting data streams between a base transceiver station and a plurality of subscribers. The method includes receiving protocol data units from a network, creating sub-protocol data units from the protocol data units, and once per a frame of time, generating a schedule that designates time slots and pre-defined frequency blocks in which each one of the plurality of subscribers is to receive each of the sub-protocol data units from a plurality of base station transceiver antennas. The invention can further include transmitting the schedule to each of the subscribers, and the plurality of base station transceiver antennas transmitting the sub-protocol data units according to the schedule. The invention can further include selecting at least one transmission mode for each subscriber. The transmission mode dictating the type of modulation and/or coding used during transmission of the sub-protocol data units.
摘要翻译：本发明包括一种用于在基站收发台的至少一个天线和多个用户单元之间调度数据块的无线传输的装置和方法。调度可以基于基站天线和用户单元之间的传输链路的质量，用户单元请求的数据量和/或用户单元请求的数据的类型。调度通常包括向每个用户单元分配频率块和时隙以用于接收或发送数据块。本发明包括一种在基站和多个用户之间传输数据流的方法。该方法包括从网络接收协议数据单元，从协议数据单元创建子协议数据单元，并且每一帧一次生成指定时隙的调度和预定义的频率块，其中每个多个用户将从多个基站收发天线接收每个子协议数据单元。本发明还可以包括根据日程安排向每个用户以及多个基站收发天线发送该子协议数据单元。本发明还可以包括为每个用户选择至少一个传输模式。传输模式指示在子协议数据单元的传输期间使用的调制和/或编码的类型。

36. 发明授权

US06922445B1 Method and system for mode adaptation in wireless communication 有权
标题翻译：无线通信中模式适应的方法和系统
公开(公告)号：US06922445B1
公开(公告)日：2005-07-26
申请号：US09609591
申请日：2000-06-30
申请人： Hemanth Sampath , Peroor K. Sebastian , Arogyaswami J. Paulraj
发明人： Hemanth Sampath , Peroor K. Sebastian , Arogyaswami J. Paulraj
IPC分类号： H01Q1/24 , H01Q3/26 , H04B7/06 , H04B7/08 , H04L1/00 , H04L1/06 , H04B7/02 , H04L1/02
CPC分类号： H04L1/0026 , H01Q1/246 , H01Q3/2605 , H04B7/0669 , H04B7/0673 , H04B7/0697 , H04B7/084 , H04B7/0857 , H04L1/0001 , H04L1/0003 , H04L1/0009 , H04L1/06 , H04L1/0618
摘要： A method and system for selective mode adaptation for transmitting data by spatial multiplexing applicable in communications systems with a transmit unit having multiple transmit antennas or multiple transmit units and a receive unit having multiple receive antennas. A channel descriptor, such as channel matrix H or a channel matrix filter , with has sub-descriptors corresponding to the transmit antennas is determined and a quality parameter, such as signal-to-interference and noise ratio, signal-to-noise ratio or power level are chosen. The quality parameter is assigned a threshold and the sub-descriptor or sub-descriptors whose quality parameters do not meet the threshold are identified and deactivated.
摘要翻译：一种用于通过适用于具有多个发射天线或多个发射单元的发射单元的通信系统中的空间复用来传输数据的方法和系统以及具有多个接收天线的接收单元。信道描述符，例如信道矩阵H或信道矩阵滤波器<？img id =“CUSTOM-CHARACTER-00001”he =“3.13mm”wi =“3.13mm”file =“US06922445-20050726-P00900.TIF”alt =“自定义字符”img-content =“character”img-format =“tif”？>，具有对应于发送天线的子描述符，并且质量参数（例如信号与干扰和噪声比）选择信噪比或功率电平。质量参数被分配一个阈值，并且识别和去激活质量参数不满足阈值的子描述符或子描述符。

37. 发明申请

US20090202013A1 WIRELESS COMMUNICATION NETWORK AND METHOD FOR EXTENDED-RANGE UPLINK COMMUNICATIONS 审中-公开
标题翻译：无线通信网络和扩展上行链路通信的方法
公开(公告)号：US20090202013A1
公开(公告)日：2009-08-13
申请号：US12419877
申请日：2009-04-07
申请人： Peroor K. Sebastian
发明人： Peroor K. Sebastian
IPC分类号： H04K1/10 , H04J3/00 , H04W4/00 , H04B1/38
CPC分类号： H04W28/20 , H04W72/08 , H04W74/04
摘要： Embodiments of a wireless network and method for extended-range communications are generally described herein. In some embodiments, an RF bandwidth of an uplink communication channel is established for a plurality of subscriber units. A desired channel quality is also established for uplink communications from each subscriber unit to a base transceiver station over the uplink communication channel. The RF bandwidth of the uplink communication channel is reduced and additional time-slots are allocated to the uplink communication channel of some subscriber units to achieve the desired channel quality for the uplink communications to provide extended-range uplink communications for subscriber units that are further from the base transceiver station.
摘要翻译：无线网络和用于扩展范围通信的方法的实施例一般地在此描述。在一些实施例中，为多个用户单元建立上行链路通信信道的RF带宽。对于通过上行链路通信信道从每个用户单元到基站收发器的上行链路通信，也建立了期望的信道质量。降低上行链路通信信道的RF带宽，并且向一些用户单元的上行链路通信信道分配额外的时隙，以实现上行链路通信所需的信道质量，为远程用户单元提供扩展范围的上行链路通信基站收发台。

38. 发明授权

US07529548B2 Method and system for adapting a wireless link to achieve a desired channel quality 失效
标题翻译：用于适配无线链路以实现期望信道质量的方法和系统
公开(公告)号：US07529548B2
公开(公告)日：2009-05-05
申请号：US09894448
申请日：2001-06-28
申请人： Peroor K. Sebastian
发明人： Peroor K. Sebastian
IPC分类号： H04Q7/20
CPC分类号： H04W28/20 , H04W72/08 , H04W74/04
摘要： Adapting a wireless communications link between a transmitter and a receiver involves reducing the RF bandwidth of an uplink communications channel to achieve a desired channel quality. The RF bandwidth of the uplink communications channel is reduced when the desired channel quality is not achieved using the entire available RF bandwidth for uplink communications. Reducing the RF bandwidth of an uplink channel enables the uplink limit of a subscriber unit to be extended beyond what is possible when the entire available RF bandwidth is used for uplink communications. Additional uplink time slots can be allocated to the uplink communications channel with the reduced RF band so that a constant overall transmission rate can be maintained between the transmitter and the receiver.
摘要翻译：适应发射机和接收机之间的无线通信链路涉及降低上行链路通信信道的RF带宽以实现期望的信道质量。当使用用于上行链路通信的整个可用RF带宽不能实现期望的信道质量时，上行链路通信信道的RF带宽减小。降低上行链路信道的RF带宽使得当将整个可用RF带宽用于上行链路通信时，可以将用户单元的上行链路限制扩展到超过可能的范围。另外的上行链路时隙可以被分配到具有降低的RF频带的上行链路通信信道，使得可以在发射机和接收机之间保持恒定的总传输速率。

39. 发明授权

US06711412B1 Interference mitigation in wireless communications by training of interfering signals 有权
标题翻译：通过干扰信号训练对无线通信中的干扰减轻
公开(公告)号：US06711412B1
公开(公告)日：2004-03-23
申请号：US09687965
申请日：2000-10-13
申请人： Jose Tellado , Peroor K. Sebastian
发明人： Jose Tellado , Peroor K. Sebastian
IPC分类号： H04B1500
CPC分类号： H04L27/2601
摘要： A method and wireless communication system for identifying one or more undesired signals at a multiple input receive unit receiving a desired signal or several desired signals and the undesired signal or signals. A separability condition between the desired signal and undesired signal is provided to enable that the undesired signal can be identified at the multiple input receive unit. The separability condition includes the use of substantially coherent reception at the receive unit and the use of separable training patterns for the desired and undesired signals. Zero tones are included in desired and undesired signals to further enhance signal separability. Signal training at the receive unit is used to derive the corresponding channel matrices for the interferers and mitigate their effects.
摘要翻译：一种用于在多输入接收单元处识别一个或多个不期望信号的方法和无线通信系统，所述多个输入接收单元接收期望信号或多个期望信号以及不期望的信号或信号提供期望信号和非期望信号之间的可分离性条件，以使得可以在多输入接收单元处识别出不需要的信号。可分离性条件包括在接收单元处使用基本一致的接收，以及使用可分离的训练模式用于期望的和不期望的信号。零色调包含在所需和不需要的信号中，以进一步增强信号分离性。接收单元的信号训练用于导出干扰源的相应信道矩阵，并减轻其影响。

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