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公开(公告)号：US20110103365A1
公开(公告)日：2011-05-05
申请号：US12611207
申请日：2009-11-03
CPC分类号： H04W16/12 , H04W72/082
摘要： An apparatus and method for fractional frequency reuse in a communication system. The method includes a first step 400 of partitioning a sub-frame into resource partitions, wherein at least one resource partition has frequency reuse of one and all other resource partitions have frequency reuse greater than one. A next step 408 includes scheduling resources for a mobile station in a sector in each resource partition used by that sector.
摘要翻译： 一种用于通信系统中分数频率重用的装置和方法。 该方法包括将子帧划分成资源分区的第一步骤400，其中至少一个资源分区具有一个频率重用，所有其他资源分区的频率重用大于1。 下一步骤408包括为该扇区使用的每个资源分区中的扇区中的移动台调度资源。
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公开(公告)号：US08199713B2
公开(公告)日：2012-06-12
申请号：US12611207
申请日：2009-11-03
IPC分类号： H04W4/00
CPC分类号： H04W16/12 , H04W72/082
摘要： An apparatus and method for fractional frequency reuse in a communication system. The method includes a first step 400 of partitioning a sub-frame into resource partitions, wherein at least one resource partition has frequency reuse of one and all other resource partitions have frequency reuse greater than one. A next step 408 includes scheduling resources for a mobile station in a sector in each resource partition used by that sector.
摘要翻译： 一种用于通信系统中分数频率重用的装置和方法。 该方法包括将子帧划分成资源分区的第一步骤400，其中至少一个资源分区具有一个频率重用，所有其他资源分区的频率重用大于1。 下一步骤408包括为该扇区使用的每个资源分区中的扇区中的移动台调度资源。
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公开(公告)号：US20100056057A1
公开(公告)日：2010-03-04
申请号：US12198910
申请日：2008-08-27
CPC分类号： H04L5/0066 , H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/0026 , H04L5/0007 , H04L5/0046 , H04L27/0008
摘要： An apparatus and method to provide uplink interference control in a WiMAX communication system includes a step 302 of receiving a downlink channel quality indication from an MS. A next step 304 selecting a modulation product ratio modification parameter in response to the channel quality indication. A next step 306 includes modifying a modulation product ratio by the modification parameter. A next step 308 includes mapping the modified modulation product ratio against a table of modulation coding schemes. A next step 312 includes applying the mapped modulation coding scheme.
摘要翻译： 在WiMAX通信系统中提供上行链路干扰控制的装置和方法包括从MS接收下行链路信道质量指示的步骤302。 下一步骤304响应于信道质量指示来选择调制产品比率修改参数。 下一步骤306包括通过修改参数修改调制产物比率。 下一步骤308包括将修改的调制产品比与映射调制编码方案表进行映射。 下一步骤312包括应用映射的调制编码方案。
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4.发明申请公开(公告)号：US20100029288A1
公开(公告)日：2010-02-04
申请号：US12183216
申请日：2008-07-31
申请人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
发明人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
CPC分类号： H04B7/0452
摘要： A method, system and communication network for transmitting information signals via uplink (UL) collaborative SDMA, in a wireless communication system. Base station receiver estimates a channel gain associated with the transmission path(s) of each user and keeps a matrix of normalized covariance, between users. Based on the estimated channel gain and the normalized covariance, ULS utility is able to compute channel capacity. Based on capacity estimates of (1) the multiplexed user signals and (2) the individual user signals, signals are either multiplexed for UL SDMA or are transmitted individually. An optimal selection of multiplexed signals may be based upon: (1) a cross user interface measurement; and (2) a selection mechanism based on eigen-decomposition techniques. The ULS utility enables a UL scheduler to pair information signals with clear spatial distinction and minimal correlation, based on capacity evaluations.
摘要翻译： 一种用于在无线通信系统中经由上行链路（UL）协作SDMA发送信息信号的方法，系统和通信网络。 基站接收机估计与每个用户的传输路径相关联的信道增益，并在用户之间保持归一化协方差矩阵。 基于估计的信道增益和归一化协方差，ULS实用程序能够计算信道容量。 基于（1）多路复用用户信号和（2）个体用户信号的容量估计，信号被多路复用用于UL SDMA或单独发送。 复用信号的最佳选择可以基于：（1）跨用户接口测量; 和（2）基于特征分解技术的选择机制。 ULS实用程序使得UL调度器能够基于容量评估将信息信号与清晰的空间区别和最小的相关性进行配对。
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5.发明授权公开(公告)号：US08644288B2
公开(公告)日：2014-02-04
申请号：US12183216
申请日：2008-07-31
申请人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
发明人： Fan Wang , Stanley J. Benes , Amitabha Ghosh , Chandrasekar Sankaran , Timothy J. Wilson , Fei Tong , Nick W. Whinnett
CPC分类号： H04B7/0452
摘要： A method, system and communication network for transmitting information signals via uplink (UL) collaborative SDMA, in a wireless communication system. Base station receiver estimates a channel gain associated with the transmission path(s) of each user and keeps a matrix of normalized covariance, between users. Based on the estimated channel gain and the normalized covariance, ULS utility is able to compute channel capacity. Based on capacity estimates of (1) the multiplexed user signals and (2) the individual user signals, signals are either multiplexed for UL SDMA or are transmitted individually. An optimal selection of multiplexed signals may be based upon: (1) a cross user interface measurement; and (2) a selection mechanism based on eigen-decomposition techniques. The ULS utility enables a UL scheduler to pair information signals with clear spatial distinction and minimal correlation, based on capacity evaluations.
摘要翻译： 一种用于在无线通信系统中经由上行链路（UL）协作SDMA发送信息信号的方法，系统和通信网络。 基站接收机估计与每个用户的传输路径相关联的信道增益，并在用户之间保持归一化协方差矩阵。 基于估计的信道增益和归一化协方差，ULS实用程序能够计算信道容量。 基于（1）多路复用用户信号和（2）个体用户信号的容量估计，信号被多路复用用于UL SDMA或单独发送。 复用信号的最佳选择可以基于：（1）跨用户接口测量; 和（2）基于特征分解技术的选择机制。 ULS实用程序使得UL调度器能够基于容量评估将信息信号与清晰的空间区别和最小的相关性进行配对。
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公开(公告)号：US08055198B2
公开(公告)日：2011-11-08
申请号：US12198910
申请日：2008-08-27
CPC分类号： H04L5/0066 , H04L1/0003 , H04L1/0009 , H04L1/0016 , H04L1/0026 , H04L5/0007 , H04L5/0046 , H04L27/0008
摘要： An apparatus and method to provide uplink interference control in a WiMAX communication system includes a step 302 of receiving a downlink channel quality indication from an MS. A next step 304 selecting a modulation product ratio modification parameter in response to the channel quality indication. A next step 306 includes modifying a modulation product ratio by the modification parameter. A next step 308 includes mapping the modified modulation product ratio against a table of modulation coding schemes. A next step 312 includes applying the mapped modulation coding scheme.
摘要翻译： 在WiMAX通信系统中提供上行链路干扰控制的装置和方法包括从MS接收下行链路信道质量指示的步骤302。 下一步骤304响应于信道质量指示来选择调制产品比率修改参数。 下一步骤306包括通过修改参数修改调制产物比率。 下一步骤308包括将修改的调制产品比与映射调制编码方案表进行映射。 下一步骤312包括应用映射的调制编码方案。
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7.发明授权Method and apparatus for major group scheduling in a fixed beam communication system 有权固定波束通信系统中主要群组调度的方法和装置公开(公告)号：US08559294B2
公开(公告)日：2013-10-15
申请号：US12845820
申请日：2010-07-29
IPC分类号： H04L29/06
CPC分类号： H04B7/0452 , H04B7/0469 , H04B7/0626 , H04B7/10 , H04L5/0023 , H04L5/0048 , H04L5/0091 , H04L25/0224
摘要： An OFDMA communication system is provided that schedules partial usage of subchannels (PUSC) major groups by assigning a beam matrix of a plurality of beam matrices to each major group of multiple PUSC major groups, receiving an uplink signal from each user equipment of multiple users equipment, which uplink signal provides an indication of a channel response associated with the user equipment, determining, for each user equipment of the multiple users equipment and based on the indication of channel quality received from the user equipment, a beam matrix and major group to which to assign the user equipment, and based on the determination of a beam matrix and major group to which to assign each user equipment of the multiple users equipment, assigning two or more users equipment of the multiple users equipment to a same beam matrix and major group during a same time slot.
摘要翻译： 提供OFDMA通信系统，其通过将多个波束矩阵的波束矩阵分配给多个PUSC主组的每个主要组来调度子信道（PUSC）主要组的部分使用，从多个用户设备的每个用户设备接收上行链路信号 所述上行链路信号提供与所述用户设备相关联的信道响应的指示，针对所述多个用户设备的每个用户设备，并且基于从所述用户设备接收到的信道质量的指示来确定波束矩阵和主组， 分配用户设备，并且基于为多用户设备分配每个用户设备的波束矩阵和主要组的确定，将多个用户设备的两个或多个用户设备分配给相同的波束矩阵和主要组 在同一时间段
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公开(公告)号：US20060176936A1
公开(公告)日：2006-08-10
申请号：US11054290
申请日：2005-02-09
申请人： Fan Wang , Amitava Ghosh , Chandrasekar Sankaran , Jun Tan
发明人： Fan Wang , Amitava Ghosh , Chandrasekar Sankaran , Jun Tan
CPC分类号： H04L25/03159 , H04B2201/70701 , H04J13/00 , H04L1/08 , H04L27/2613 , H04L27/2626 , H04L27/2647 , H04L2025/03414 , H04L2025/03522
摘要： Various embodiments are described to provide for the transmission and reception of data in an improved manner. Data transmission is improved by including in a transmitter a null generator (110) to generate an output data symbol sequence that exhibits nulls in the frequency domain at particular frequencies that an input data symbol sequence does not. A pilot inserter (120) then adds a pilot symbol sequence to this output data symbol sequence to create a combined symbol sequence. Since the pilot symbol sequence exhibits pilot signals corresponding to the nulls of the output data symbol sequence in the frequency domain, the combined symbol sequence exhibits pilots that are orthogonal to the data in the frequency domain.
摘要翻译： 描述了各种实施例以提供以改进的方式发送和接收数据。 通过在发射机中包括空生成器（110）来生成输出数据符号序列来改进数据传输，该输出数据符号序列在输入数据符号序列没有的特定频率处在频域中呈现零点。 导频插入器（120）然后将导频符号序列添加到该输出数据符号序列以创建组合符号序列。 由于导频符号序列呈现与频域中的输出数据符号序列的零点相对应的导频信号，组合符号序列表现出与频域中的数据正交的导频。
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公开(公告)号：US07489755B2
公开(公告)日：2009-02-10
申请号：US11054290
申请日：2005-02-09
申请人： Fan Wang , Amitava Ghosh , Chandrasekar Sankaran , Jun Tan
发明人： Fan Wang , Amitava Ghosh , Chandrasekar Sankaran , Jun Tan
IPC分类号： H04L7/00
CPC分类号： H04L25/03159 , H04B2201/70701 , H04J13/00 , H04L1/08 , H04L27/2613 , H04L27/2626 , H04L27/2647 , H04L2025/03414 , H04L2025/03522
摘要： Various embodiments are described to provide for the transmission and reception of data in an improved manner. Data transmission is improved by including in a transmitter a null generator (110) to generate an output data symbol sequence that exhibits nulls in the frequency domain at particular frequencies that an input data symbol sequence does not. A pilot inserter (120) then adds a pilot symbol sequence to this output data symbol sequence to create a combined symbol sequence. Since the pilot symbol sequence exhibits pilot signals corresponding to the nulls of the output data symbol sequence in the frequency domain, the combined symbol sequence exhibits pilots that are orthogonal to the data in the frequency domain.
摘要翻译： 描述了各种实施例以提供以改进的方式发送和接收数据。 通过在发射机中包括空生成器（110）来生成输出数据符号序列来改进数据传输，该输出数据符号序列在输入数据符号序列没有的特定频率处在频域中呈现零点。 导频插入器（120）然后将导频符号序列添加到该输出数据符号序列以创建组合符号序列。 由于导频符号序列呈现与频域中的输出数据符号序列的零点相对应的导频信号，组合符号序列表现出与频域中的数据正交的导频。
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10.发明授权Transmission technique selector for radio communication systems with multiple transmit and multiple receive antennas 有权具有多个发射和多个接收天线的无线电通信系统的传输技术选择器公开(公告)号：US07477699B2
公开(公告)日：2009-01-13
申请号：US11613349
申请日：2006-12-20
申请人： Fan Wang , Lawrence A. Downing , Amitava Ghosh , Chandrasekar Sankaran , Jun Tan
发明人： Fan Wang , Lawrence A. Downing , Amitava Ghosh , Chandrasekar Sankaran , Jun Tan
CPC分类号： H04B7/0689 , H04B7/0417 , H04B7/063 , H04B7/0669 , H04B7/0697 , H04H20/22 , H04H60/11
摘要： A radio communications device (102) that has multiple receive antennas processes received data communications signals to select between space time coding and spatial multiplexing as a selected transmission technique from a base device (104) that has multiple transmit antennas. A channel throughput (402-412, 450-454) for each transmission technique is estimated based on signal to interference and noise ratios (502-512, 550-554) of signals being transmitted through a MIMO channel (140) as measured by a receiver (708). The transmission technique with the higher estimated throughput is determined. If spatial multiplexing is determined to have the higher estimated throughput and the throughput of each layer of the spatially multiplexed signal is greater than a threshold, spatial multiplexing is selected. Otherwise, space time coding is selected.
摘要翻译： 具有多个接收天线的无线电通信设备（102）处理接收到的数据通信信号，以从具有多个发射天线的基站设备（104）中选择在空间时间编码和空间复用之间作为所选择的传输技术。 基于通过MIMO信道（140）发送的信号的信号与干扰和噪声比（502-512,55-554）来估计用于每个传输技术的信道吞吐量（402-412,450-454），如 接收器（708）。 确定具有较高估计吞吐量的传输技术。 如果确定空间复用具有较高的估计吞吐量，并且空间复用信号的每层的吞吐量大于阈值，则选择空间复用。 否则，选择空时编码。
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