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1. 发明授权

US09392591B2 Method for synchronization and signaling of occupied bands in orthogonal frequency division multiplexing (OFDM) transmissions 有权
标题翻译：正交频分复用（OFDM）传输中占用频带的同步和信令的方法
公开(公告)号：US09392591B2
公开(公告)日：2016-07-12
申请号：US12466533
申请日：2009-05-15
申请人： Joydeep Acharya , Sivarama Venkatesan , Harish Viswanathan
发明人： Joydeep Acharya , Sivarama Venkatesan , Harish Viswanathan
IPC分类号： H04W72/12 , H04W72/04 , H04L5/00 , H04L27/26 , H04W16/14 , H04W84/04
CPC分类号： H04W72/042 , H04L5/0094 , H04L27/2655 , H04L27/2676 , H04W16/14 , H04W72/0453 , H04W84/045
摘要： The present invention provides a method for use in a wireless communication system that supports orthogonal frequency division multiplexing (OFDM) of transmissions over a plurality of subcarriers. One embodiment of the method includes a network entity that allocates one or more of a plurality of sub-bands for communication with an access terminal. Each of the sub-bands includes one or more of the subcarriers and is associated with a corresponding a pseudo-random sequences. The network entity can also transmit one or more of the plurality of pseudo-random sequences over an air interface. The transmitted pseudo-random sequence indicate the sub-bands that are allocated for communication with the access terminal.
摘要翻译：本发明提供了一种在支持多个子载波上的传输的正交频分复用（OFDM）的无线通信系统中的使用方法。该方法的一个实施例包括分配用于与接入终端通信的多个子带中的一个或多个的网络实体。每个子带包括一个或多个子载波，并与相应的伪随机序列相关联。网络实体还可以通过空中接口发送多个伪随机序列中的一个或多个。发送的伪随机序列指示分配用于与接入终端进行通信的子带。

2. 发明授权

US08254318B2 Wireless communication system and method of joint beamforming wireless communication 有权
标题翻译：无线通信系统和联合波束成形无线通信的方法
公开(公告)号：US08254318B2
公开(公告)日：2012-08-28
申请号：US12216825
申请日：2008-07-11
申请人： Pantelis Monogioudis , Sivarama Venkatesan
发明人： Pantelis Monogioudis , Sivarama Venkatesan
IPC分类号： H04W4/00 , H04W72/00 , H04J3/26
CPC分类号： H04W72/046 , H04W16/28
摘要： A wireless communication system and joint beamforming method across multiple base stations for communicating with mobile stations. The wireless communication system communication system includes base stations and mobile stations. At least one of the base stations includes a joint beamformer controlling beamforming for the base stations. Each of the mobile stations receive information from the base stations, maintain a multiple-input and multiple-output active set (MAS) of base stations, and provide precoder weights to each of the base stations included in the MAS. The joint beamformer calculates joint beamforming weights for controlling communications between the base stations and mobile stations.
摘要翻译：跨越多个基站的无线通信系统和联合波束成形方法，用于与移动台进行通信。无线通信系统通信系统包括基站和移动台。基站中的至少一个包括控制基站的波束形成的联合波束形成器。每个移动站从基站接收信息，维护基站的多输入和多输出有源集合（MAS），并向包括在MAS中的每个基站提供预编码器权重。联合波束形成器计算联合波束成形权重，用于控制基站和移动台之间的通信。

3. 发明申请

US20090312027A1 METHOD FOR ADAPTIVE FORMATION OF CELL CLUSTERS FOR CELLULAR WIRELESS NETWORKS WITH COORDINATED TRANSMISSION AND RECEPTION 有权
标题翻译：用于协调形成细胞集群的方法，用于协调传输和接收的无线网络
公开(公告)号：US20090312027A1
公开(公告)日：2009-12-17
申请号：US12140537
申请日：2008-06-17
申请人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
发明人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
IPC分类号： H04Q7/20
CPC分类号： H04W24/02 , H04W16/02
摘要： The present invention provides a method of forming clusters of cells in a wireless communication system. The method includes accessing information generated by measuring channel conditions for at least one mobile unit and a plurality of cells in the wireless communication system. The method also includes adding more than one of the plurality of cells to at least one cell cluster based on the accessed information and coordinating communication between the cells in each cell cluster and the mobile unit(s).
摘要翻译：本发明提供一种在无线通信系统中形成小区簇的方法。该方法包括访问通过测量无线通信系统中的至少一个移动单元和多个小区的信道条件而生成的信息。该方法还包括基于所访问的信息将多于一个小区的多个小区添加到至少一个小区群集，并协调每个小区群集中的小区与移动单元之间的通信。

4. 发明授权

US09240909B2 Reverse link channel estimation using common and dedicated pilot channels 有权
标题翻译：使用公共和专用导频信道的反向链路信道估计
公开(公告)号：US09240909B2
公开(公告)日：2016-01-19
申请号：US12019381
申请日：2008-01-24
申请人： Angel Lozano , Sivarama Venkatesan
发明人： Angel Lozano , Sivarama Venkatesan
IPC分类号： H04B1/60 , H04L25/02 , H04L5/00
CPC分类号： H04L25/0226 , H04L5/005 , H04L5/0051
摘要： The present invention provides a method of channel estimation implemented in a receiver having multiple antennas configured to receive at least one common pilot available to a plurality of users and a plurality of dedicated pilots. Each dedicated pilot is allocated to one of the plurality of users. The method includes estimating at least one first channel associated with a first user and at least one second channel associated with a second user based on observations of the plurality of dedicated pilots and of said at least one common pilot.
摘要翻译：本发明提供一种在具有多个天线的接收机中实现的信道估计方法，所述多个天线被配置为接收可用于多个用户和多个专用导频的至少一个公共导频。每个专用导频被分配给多个用户之一。该方法包括基于多个专用导频和所述至少一个公共导频的观测来估计与第一用户相关联的至少一个第一信道和与第二用户相关联的至少一个第二信道。

5. 发明授权

US09241276B2 Method for adaptive formation of cell clusters for cellular wireless networks with coordinated transmission and reception 有权
标题翻译：用于具有协调发送和接收的蜂窝无线网络的小区簇的自适应形成的方法
公开(公告)号：US09241276B2
公开(公告)日：2016-01-19
申请号：US12140537
申请日：2008-06-17
申请人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
发明人： G. J. Foschini , Howard C. Huang , Angel Lozano , Reinaldo Valenzuela , Sivarama Venkatesan
IPC分类号： H04W4/00 , H04W24/02 , H04W16/02
CPC分类号： H04W24/02 , H04W16/02
摘要： The present invention provides a method of forming clusters of cells in a wireless communication system. The method includes accessing information generated by measuring channel conditions for at least one mobile unit and a plurality of cells in the wireless communication system. The method also includes adding more than one of the plurality of cells to at least one cell cluster based on the accessed information and coordinating communication between the cells in each cell cluster and the mobile unit(s).
摘要翻译：本发明提供一种在无线通信系统中形成小区簇的方法。该方法包括访问通过测量无线通信系统中的至少一个移动单元和多个小区的信道条件而生成的信息。该方法还包括基于所访问的信息将多于一个小区的多个小区添加到至少一个小区群集，并协调每个小区群集中的小区与移动单元之间的通信。

6. 发明申请

US20090191835A1 REVERSE LINK CHANNEL ESTIMATION USING COMMON AND DEDICATED PILOT CHANNELS 有权
标题翻译：使用通用和专用导频信道的反向链路信道估计
公开(公告)号：US20090191835A1
公开(公告)日：2009-07-30
申请号：US12019381
申请日：2008-01-24
申请人： ANGEL LOZANO , Sivarama Venkatesan
发明人： ANGEL LOZANO , Sivarama Venkatesan
IPC分类号： H03D1/00 , H04B1/16 , H04L27/06
CPC分类号： H04L25/0226 , H04L5/005 , H04L5/0051
摘要： The present invention provides a method of channel estimation implemented in a receiver having multiple antennas configured to receive at least one common pilot available to a plurality of users and a plurality of dedicated pilots. Each dedicated pilot is allocated to one of the plurality of users. The method includes estimating at least one first channel associated with a first user and at least one second channel associated with a second user based on observations of the plurality of dedicated pilots and of said at least one common pilot.
摘要翻译：本发明提供一种在具有多个天线的接收机中实现的信道估计方法，所述多个天线被配置为接收可用于多个用户和多个专用导频的至少一个公共导频。每个专用导频被分配给多个用户之一。该方法包括基于多个专用导频和所述至少一个公共导频的观测来估计与第一用户相关联的至少一个第一信道和与第二用户相关联的至少一个第二信道。

7. 发明申请

US20100009717A1 Wireless communication system and method of joint beamforming wireless communication 有权
标题翻译：无线通信系统和联合波束成形无线通信的方法
公开(公告)号：US20100009717A1
公开(公告)日：2010-01-14
申请号：US12216825
申请日：2008-07-11
申请人： Pantelis Monogioudis , Sivarama Venkatesan
发明人： Pantelis Monogioudis , Sivarama Venkatesan
IPC分类号： H04W88/00
CPC分类号： H04W72/046 , H04W16/28
摘要： A wireless communication system and joint beamforming method across multiple base stations for communicating with mobile stations. The wireless communication system communication system includes base stations and mobile stations. At least one of the base stations includes a joint beamformer controlling beamforming for the base stations. Each of the mobile stations receive information from the base stations, maintain a multiple-input and multiple-output active set (MAS) of base stations, and provide precoder weights to each of the base stations included in the MAS. The joint beamformer calculates joint beamforming weights for controlling communications between the base stations and mobile stations.
摘要翻译：跨越多个基站的无线通信系统和联合波束成形方法，用于与移动台进行通信。无线通信系统通信系统包括基站和移动台。基站中的至少一个包括控制基站的波束形成的联合波束形成器。每个移动站从基站接收信息，维护基站的多输入和多输出有源集合（MAS），并向包括在MAS中的每个基站提供预编码器权重。联合波束形成器计算联合波束成形权重，用于控制基站和移动台之间的通信。

8. 发明授权

US06768768B2 Method and apparatus for step two W-CDMA searching 有权
标题翻译：用于步骤二W-CDMA搜索的方法和装置
公开(公告)号：US06768768B2
公开(公告)日：2004-07-27
申请号：US09957377
申请日：2001-09-19
申请人： Subramanya P. Rao , Sivarama Venkatesan , Gwang-Hyun Gho , Avneesh Agrawal , Daisuke Terasawa
发明人： Subramanya P. Rao , Sivarama Venkatesan , Gwang-Hyun Gho , Avneesh Agrawal , Daisuke Terasawa
IPC分类号： H04L2730
CPC分类号： H04B1/7077 , H04B1/70735 , H04B1/70752 , H04B1/7083 , H04B1/709 , H04B1/7093 , H04B2201/70701 , H04B2201/70707
摘要： Techniques for searching in asynchronous systems are disclosed. In one aspect, a plurality of codes, such as SSCs, are correlated with a received signal at a plurality of offsets to produce a code/slot energy corresponding to each code/slot boundary pair. Unique subsets of the code/slot energies are summed to produce code sequence energies, the maximum of which indicates a located code sequence and slot boundary. In another aspect, the correlation is performed by sub-correlating the received signal with a common sequence, and performing a Fast Hadamard Transform (FHT) on the results. In yet another aspect, one sub-correlator can be used to search a plurality of peaks simultaneously. Various other aspects of the invention are also presented. These aspects collectively have the benefit of circuit area and search-time efficiency which translate into reduced costs, increased standby time, increased acquisition speed, higher quality signal transmission, increased data throughput, decreased power, and improved overall system capacity.
摘要翻译：公开了在异步系统中搜索的技术。在一个方面，诸如SSC的多个代码与多个偏移处的接收信号相关，以产生对应于每个代码/时隙边界对的代码/时隙能量。代码/时隙能量的独特子集被相加以产生代码序列能量，其最大值表示定位的代码序列和时隙边界。在另一方面，通过将接收到的信号与公共序列进行子相关，并对结果进行快速哈达马（Fad Hadamard）变换（FHT）来执行相关性。在另一方面，可以使用一个子相关器同时搜索多个峰值。还提出了本发明的各种其它方面。这些方面共同具有电路面积和搜索时间效率的优点，其转化为降低的成本，增加的待机时间，增加的采集速度，更高质量的信号传输，增加的数据吞吐量，降低的功率以及改善的整体系统容量。

9. 发明授权

US06735606B2 Multi-sequence fast slewing pseudorandom noise generator 有权
标题翻译：多序列快速回归伪随机噪声发生器
公开(公告)号：US06735606B2
公开(公告)日：2004-05-11
申请号：US09858263
申请日：2001-05-15
申请人： Daisuke Terasawa , Avneesh Agrawal , Sivarama Venkatesan
发明人： Daisuke Terasawa , Avneesh Agrawal , Sivarama Venkatesan
IPC分类号： G06F102
CPC分类号： H04B1/7075 , H04J13/0022 , H04J13/10
摘要： Techniques for fast-slewing of multi-sequence based PN generators are disclosed. In one aspect, LFSR states and reference counter states are loaded into their corresponding components such that consistency among the states is maintained. In another aspect, various methods for determining LFSR states and counter values in response to a desired offset in a unique code are disclosed. Among these methods are matrix-multiplication of LFSR states and generation of advanced LFSR states through masking techniques. Other methods are also presented. These aspects have the benefit of decreasing slew time in an efficient manner, which translates to increased acquisition speed, faster finger lock on multi-path signals, increased data throughput, decreased power, and improved overall system capacity.
摘要翻译：公开了用于快速回转多序列PN发生器的技术。在一个方面，LFSR状态和引用计数器状态被加载到它们相应的组件中，使得保持状态之间的一致性。在另一方面，公开了用于响应于唯一码中的期望偏移来确定LFSR状态和计数值的各种方法。在这些方法中，LFSR状态的矩阵乘法和通过掩蔽技术生成高级LFSR状态。还介绍了其他方法。这些方面有利于以有效的方式减少转换时间，这转化为增加的采集速度，更快的手指锁定多路径信号，增加的数据吞吐量，降低的功率以及改进的整体系统容量。

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