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1.发明授权公开(公告)号：US07330524B2
公开(公告)日：2008-02-12
申请号：US11027280
申请日：2004-12-30
IPC分类号： H04L7/04
CPC分类号： H04L27/0014 , H04L7/04 , H04L2027/0034 , H04L2027/0065 , H04L2027/0095
摘要： Synchronization and impairment estimations can be performed jointly, thereby saving valuable time for decoding of the received packet. An initial synchronization in a TDMA system can be performed. Using this synchronization, the frequency offset choices and timing offset choices can be advantageously bounded within predetermined ranges. At this point, an algorithm can find the minimum error that gives the best frequency offset choice and timing offset choice combination over their respective ranges, together with the estimates of the signal magnitude and phase and at least one of a DC offset magnitude and phase, and a spur magnitude and phase.
摘要翻译： 可以共同执行同步和损害估计，从而节省了对接收到的分组进行解码的宝贵时间。 可以执行TDMA系统中的初始同步。 使用该同步，频率偏移选择和定时偏移选择可以有利地限制在预定范围内。 在这一点上，算法可以找到给出最佳频偏选择和定时偏移选择组合在其各自范围上的最小误差，以及信号幅度和相位的估计以及DC偏移幅度和相位中的至少一个， 和一个刺激幅度和相位。
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2.发明授权System and related methods for beamforming in a multi-point communications environment 有权用于多点通信环境中波束成形的系统和相关方法公开(公告)号：US07817590B2
公开(公告)日：2010-10-19
申请号：US12580064
申请日：2009-10-15
申请人： Athanasios A. Kasapi , Jason Liu
发明人： Athanasios A. Kasapi , Jason Liu
IPC分类号： H04H20/71
CPC分类号： H04W16/28
摘要： A system and related methods for beamforming in a multi-point communication environment is presented. According to one aspect of the invention, a method comprising identifying one or more target(s) for which a communication signal is intended, identifying one or more other target(s) which may benefit from receipt of the communication signal, and developing a multi-lobe beampattern to transmit the communication signal to the intended target(s) and the identified one or more other target(s).
摘要翻译： 提出了一种用于多点通信环境中波束成形的系统及相关方法。 根据本发明的一个方面，一种方法包括识别通信信号所针对的一个或多个目标，识别可能受益于通信信号的一个或多个其他目标，以及开发多个 - 用于将通信信号发送到预期目标和所识别的一个或多个其他目标的波瓣图案。
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3.发明申请CHANNEL ASSIGNMENT BASED ON SPATIAL STRATEGIES IN A WIRELESS NETWORK USING ADAPTIVE ANTENNA ARRAYS 有权使用自适应天线阵列在无线网络中基于空间策略的信道分配公开(公告)号：US20100118729A1
公开(公告)日：2010-05-13
申请号：US12691490
申请日：2010-01-21
CPC分类号： H04W72/08 , H04W16/28 , H04W72/046
摘要： Channels are assigned based on co-spatial constraints in wireless network using spatial division multiple access. In one example, the invention includes assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, and receiving a request from a user terminal to communicate using a traffic communication channel of the base station. The invention further includes measuring a quality parameter of the request deriving a co-spatial constraint for the user terminal, assigning the user terminal co-spatial constraint to the user terminal, and assigning the user terminal to a traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint.
摘要翻译： 基于使用空分多址的无线网络中的空间约束来分配信道。 在一个示例中，本发明包括将共空间约束分配给基站的多个传统业务通信信道中的每一个，并且从用户终端接收使用基站的业务通信信道进行通信的请求。 本发明还包括测量导出用户终端的协同空间约束的请求的质量参数，将用户终端同空间约束分配给用户终端，以及将用户终端分配给具有频道共享的业务通信信道， 空间约束不小于用户终端协同空间约束，并且没有比通道协同空间约束允许的更多的分配无线电。
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公开(公告)号：US07593693B1
公开(公告)日：2009-09-22
申请号：US11375500
申请日：2006-03-13
申请人： Athanasios A. Kasapi , Mitchell D. Trott , Peter G. Khoury , Adam B. Kerr , Serge Barbosa Da Torre
发明人： Athanasios A. Kasapi , Mitchell D. Trott , Peter G. Khoury , Adam B. Kerr , Serge Barbosa Da Torre
CPC分类号： H04B7/0854
摘要： Methods and apparatus for calculating spatial processing strategies in adaptive antenna array processing systems. Reference signal quality, intersymbol interference, data processed and received signal quality can be determined by burst type or remote device type and used to determine a synthetic signal level for use in developing a spatial processing strategy. A synthetic signal have an isotropically distributed component can be added to the antennas in the array or the diagonal elements of the received signal covariance matrix to develop uplink and downlink spatial processing strategies. Different synthetic signals at different signal levels can be used to develop different uplink and downlink spatial processing strategies. The downlink signal level can be larger than the uplink signal level. Uplink and downlink processing strategies can be developed in substantially the same way.
摘要翻译： 自适应天线阵列处理系统中空间处理策略的计算方法与装置。 参考信号质量，码间干扰，数据处理和接收信号质量可以通过突发类型或远程设备类型确定，并用于确定用于开发空间处理策略的合成信号电平。 合成信号具有各向同性分布的分量可以添加到阵列中的天线或接收信号协方差矩阵的对角元素，以开发上行链路和下行链路空间处理策略。 不同信号级别的不同合成信号可用于开发不同的上行链路和下行链路空间处理策略。 下行链路信号电平可以大于上行链路信号电平。 上行链路和下行链路处理策略可以以相同的方式开发。
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5.发明授权Channel assignment based on spatial strategies in a wireless network using adaptive antenna arrays 失效基于使用自适应天线阵列的无线网络中的空间策略的信道分配公开(公告)号：US07539496B1
公开(公告)日：2009-05-26
申请号：US10112164
申请日：2002-03-28
CPC分类号： H04W72/08 , H04W16/28 , H04W72/046
摘要： The present invention can improve efficiency in wireless radio networks using spatial division multiple access (SDMA) strategies. One embodiment of the invention includes determining a quality parameter of a user terminal based on a signal received from the user terminal at a base station. One embodiment further includes determining a co-spatial constraint on the user terminal based on the quality parameter, the co-spatial constraint comprising a limitation on the quantity of additional user terminals with which the user terminal can share a conventional communications channel.
摘要翻译： 本发明可以使用空分多址（SDMA）策略来提高无线电网络的效率。 本发明的一个实施例包括基于在基站从用户终端接收到的信号来确定用户终端的质量参数。 一个实施例还包括基于质量参数来确定用户终端上的共空间约束，所述协同空间约束包括对用户终端可以共享传统通信信道的附加用户终端的数量的限制。
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6.发明授权Method and apparatus to provide multiple-mode spatial processing in a radio receiver 失效在无线电接收机中提供多模式空间处理的方法和装置公开(公告)号：US07702298B2
公开(公告)日：2010-04-20
申请号：US11853992
申请日：2007-09-12
IPC分类号： B61H1/00
CPC分类号： H04B7/0877 , H04B7/084 , H04B7/0842 , H04B7/0851 , H04B7/0857 , H04B7/0868 , H04B7/0871 , H04B7/0874 , H04B7/088 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/336 , H04B17/345 , H04W52/42
摘要： Methods and apparatuses, including computer program products, for spatial processing in a radio receiver. One embodiment is a radio receiver for operation in a wireless communication system. The radio receiver may include a receive processing unit to process signals received by an antenna array by applying a selected spatial processing mode of a plurality of spatial processing modes. The modes include one or more modes of one or more spatial processing methods. The receiver also includes a selector to select the spatial processing mode from the plurality of spatial processing modes. The selecting includes selecting the spatial processing method in the case that the set of spatial processing modes are of more than one spatial processing method.
摘要翻译： 包括用于无线电接收机中的空间处理的计算机程序产品的方法和装置。 一个实施例是用于在无线通信系统中操作的无线电接收机。 无线电接收机可以包括接收处理单元，以通过应用多个空间处理模式的所选择的空间处理模式来处理由天线阵列接收的信号。 这些模式包括一种或多种空间处理方法的一种或多种模式。 接收机还包括从多个空间处理模式中选择空间处理模式的选择器。 所述选择包括在所述一组空间处理模式具有多于一种空间处理方法的情况下选择所述空间处理方法。
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7.发明申请System and Related Methods for Beamforming in a Multi-Point Communications Environment 有权多点通信环境中波束成形的系统及相关方法公开(公告)号：US20100034131A1
公开(公告)日：2010-02-11
申请号：US12580064
申请日：2009-10-15
申请人： Athanasios A. Kasapi , Jason Liu
发明人： Athanasios A. Kasapi , Jason Liu
CPC分类号： H04W16/28
摘要： A system and related methods for beamforming in a multi-point communication environment is presented. According to one aspect of the invention, a method comprising identifying one or more target(s) for which a communication signal is intended, identifying one or more other target(s) which may benefit from receipt of the communication signal, and developing a multi-lobe beampattern to transmit the communication signal to the intended target(s) and the identified one or more other target(s).
摘要翻译： 提出了一种用于多点通信环境中波束成形的系统及相关方法。 根据本发明的一个方面，一种方法包括识别通信信号所针对的一个或多个目标，识别可能受益于通信信号的一个或多个其他目标，以及开发多个 - 用于将通信信号发送到预期目标和所识别的一个或多个其他目标的波瓣图案。
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8.发明授权Method and apparatus to provide multiple-mode spatial processing to a terminal unit 有权向终端单元提供多模式空间处理的方法和装置公开(公告)号：US07277679B1
公开(公告)日：2007-10-02
申请号：US10265896
申请日：2002-10-07
IPC分类号： B60H1/00
CPC分类号： H04B7/0877 , H04B7/084 , H04B7/0842 , H04B7/0851 , H04B7/0857 , H04B7/0868 , H04B7/0871 , H04B7/0874 , H04B7/088 , H04B17/24 , H04B17/309 , H04B17/318 , H04B17/336 , H04B17/345 , H04W52/42
摘要： Methods and apparatuses, including computer program products, for spatial processing in a remote terminal unit. One embodiment is a wireless remote terminal receiver in a wireless terminal unit for operation in a wireless communication system. The wireless remote terminal receiver includes an antenna array, and a receive processing unit to process signals received by the antenna array by applying a selected spatial processing mode of a plurality of spatial processing modes. The modes include one or more modes of one or more spatial processing methods. The receiver also includes a selector to select the spatial processing mode from the plurality of spatial processing modes. The selecting includes selecting the spatial processing method in the case that the set of spatial processing modes are of more than one spatial processing method.
摘要翻译： 包括用于远程终端单元中的空间处理的计算机程序产品的方法和装置。 一个实施例是用于在无线通信系统中操作的无线终端单元中的无线远程终端接收器。 无线远程终端接收机包括天线阵列和接收处理单元，用于通过应用多个空间处理模式的所选择的空间处理模式来处理由天线阵列接收的信号。 这些模式包括一种或多种空间处理方法的一种或多种模式。 接收机还包括从多个空间处理模式中选择空间处理模式的选择器。 所述选择包括在所述一组空间处理模式具有多于一种空间处理方法的情况下选择所述空间处理方法。
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9.发明授权Symbol estimation-based decorrelator for estimating spatial signatures in a wireless communications system 有权用于估计无线通信系统中的空间签名的基于符号估计的去相关器公开(公告)号：US07047045B2
公开(公告)日：2006-05-16
申请号：US10387718
申请日：2003-03-13
CPC分类号： H04B7/0854 , H04B7/0615
摘要： Spatial and temporal characteristics of received radio signals in a multiple user radio system can be estimated based on signals received from the users. In one embodiment, the invention includes collecting measurements of radio frequency signals received at different elements of an antenna system over time, the received signals corresponding at least in part to transmissions received from a system user, collecting representations of the transmissions of the system user, cross-correlating the collected measurements and the collected representations, and comparing the cross-correlation to the collected measurements to form a characterization of the radio channel traversed by transmissions of the system user.
摘要翻译： 可以基于从用户接收的信号来估计多用户无线电系统中接收的无线电信号的空间和时间特性。 在一个实施例中，本发明包括收集在时间上在天线系统的不同元件处接收的射频信号的测量，所接收的信号至少部分地对应于从系统用户接收的传输，收集系统用户的传输的表示， 将收集的测量和收集的表示互相关，并将互相关与收集的测量进行比较，以形成通过系统用户的传输所穿过的无线电信道的表征。
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10.发明授权Method and apparatus for separting multiple users in a shared-channel communication system 有权在共享信道通信系统中分离多个用户的方法和装置公开(公告)号：US06778513B2
公开(公告)日：2004-08-17
申请号：US09918910
申请日：2001-07-30
IPC分类号： H04Q700
CPC分类号： H04B7/2612 , H04B7/2643
摘要： A method and apparatus for distinguishing between two or more signals, each associated with a particular remote user terminal, in a shared-channel wireless communication system. A communication device, for example, a base station, causes an offset (e.g., a time and/or a frequency offset) between the transmission of first and second uplink signals that simultaneously occupy the same channel and that are transmitted by first and second remote user terminals, respectively. According to one aspect of the invention, the offset is relatively small enough such that the first and second uplink signals remain within the same channel, but relatively large enough such that based on the offset, the communication device may identify that the first uplink signal is associated with the first remote user terminal.
摘要翻译： 一种用于在共享信道无线通信系统中区分每个与特定远程用户终端相关联的两个或更多个信号的方法和装置。 通信设备（例如基站）在同时占用相同信道并由第一和第二远程传输的第一和第二上行链路信号的传输之间引起偏移（例如，时间和/或频率偏移） 用户终端。 根据本发明的一个方面，偏移量足够小，使得第一和第二上行链路信号保持在相同的信道内，但是相对较大，使得基于偏移，通信设备可以识别出第一上行链路信号是 与第一远程用户终端相关联。
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