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公开(公告)号：US20090280855A1
公开(公告)日：2009-11-12
申请号：US12432174
申请日：2009-04-29
IPC分类号： H04B7/005
CPC分类号： H04W52/346 , H04B7/0417 , H04B7/0452 , H04B7/0617 , H04B7/0619 , H04B7/0691 , H04W52/343
摘要： A disclosed radio communication apparatus includes a preceding unit configured to precode multiple streams, a splitting unit configured to split the precoded streams into two or more stream sets each including one or more streams, a sub power optimization unit configured to execute an iterative transmit power optimization algorithm on each of the split stream sets to determine respective transmit power levels for the individual stream sets, a power optimization unit configured to execute the iterative transmit power optimization algorithm by using the determined transmit power levels as initial values for the iterative transmit power optimization algorithm to determine respective transmit power levels for the individual streams, and a transmission unit configured to transmit radio signals from individual transmit antennas at the determined transmit power levels.
摘要翻译： 所公开的无线电通信装置包括：预配置多个流的前一单元，分配单元，被配置为将预编码流分为两个或更多个流集合，每个流集合包括一个或多个流;子功率优化单元，被配置为执行迭代发射功率优化 分配流集合中的每一个的算法，以确定各个流集合的相应发射功率电平;功率优化单元，被配置为通过使用所确定的发射功率电平作为迭代发射功率优化算法的初始值来执行迭代发射功率优化算法 以确定各个流的各个发射功率电平;以及传输单元，被配置为以确定的发射功率电平从各个发射天线发射无线电信号。
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公开(公告)号：US20090280760A1
公开(公告)日：2009-11-12
申请号：US12431894
申请日：2009-04-29
CPC分类号： H04W52/343 , H04B7/0417 , H04B7/0617 , H04B7/0619 , H04B7/0691 , H04W52/346
摘要： A disclosed radio communication apparatus transmits a radio signal to multiple users via multiple transmit antenna groups at appropriate transmit power levels, each of the transmit antenna groups including one or more transmit antennas, the transmit antenna groups having respective transmit power constraints. The apparatus includes a precoding unit configured to perform precoding on signals modulated for individual users and generate transmit weights, an optimum transmit power calculation unit configured to receive the transmit weights from the precoding unit and use components of the transmit weights and respective transmit power limit values for the transmit antenna groups to calculate an initial value for a transmit power optimization problem for calculation of the appropriate transmit power levels for the users, and a transmission unit configured to transmit radio signals at the calculated transmit power levels.
摘要翻译： 所公开的无线电通信装置在适当的发射功率电平下通过多个发射天线组向多个用户发送无线电信号，每个发射天线组包括一个或多个发射天线，发射天线组具有各自的发射功率约束。 所述装置包括：预编码单元，被配置为对针对各个用户调制的信号执行预编码并生成发送权重;最佳发射功率计算单元，被配置为从所述预编码单元接收所述发射权重并使用所述发射权重的分量和各自的发射功率限制值 对于发射天线组来计算用于计算用户的适当发射功率电平的发射功率优化问题的初始值，以及被配置为以所计算的发射功率电平发送无线电信号的传输单元。
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公开(公告)号：US20090280856A1
公开(公告)日：2009-11-12
申请号：US12432230
申请日：2009-04-29
IPC分类号： H04B7/00
CPC分类号： H04W52/343 , H04B7/0417 , H04B7/0617 , H04B7/0619 , H04W52/346
摘要： A disclosed radio communication apparatus includes a preceding unit, a optimum transmit power calculation unit and a transmission unit. The optimum transmit power calculation unit receives the transmit weight related information from the preceding unit and calculates a transmit power level to optimize an objective function in accordance with an interior point method. The objective function results from addition of a barrier function adjusted with a barrier parameter to an original objective function associated with a constrained optimization problem. The original objective function includes a function of respective channel capacities for individual users derived from the transmit weight related information. The optimum transmit power calculation unit adaptively updates a logarithm of the barrier parameter and uses a gradient obtained through a high-order derivative with the logarithm of the barrier parameter to calculate the transmit power level to optimize the resulting objective function.
摘要翻译： 所公开的无线电通信装置包括前一单元，最佳发送功率计算单元和发送单元。 最佳发射功率计算单元从前一单元接收发射权重相关信息，并根据内点方法计算发射功率电平以优化目标函数。 目标函数是由将阻挡参数调整的障碍函数添加到与约束优化问题相关联的原始目标函数中产生的。 原始目标函数包括从发送权重相关信息导出的各个用户的各个信道容量的功能。 最佳发射功率计算单元自适应地更新屏障参数的对数，并使用通过高阶导数获得的梯度与屏障参数的对数来计算发射功率电平以优化所得到的目标函数。
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4.发明申请RADIO COMMUNICATION SYSTEM, CENTRALIZED STATION, CONTROL STATION APPARATUS, RADIO BASE STATION AND COORDINATED TRANSMISSION METHOD 有权无线电通信系统，集中站，控制站设备，无线基站和协调传输方法公开(公告)号：US20120026956A1
公开(公告)日：2012-02-02
申请号：US13191645
申请日：2011-07-27
IPC分类号： H04W72/04
摘要： The radio communication system of the present invention is provided with a cluster pattern determining section 61 that determines the assignment of each cluster pattern to each cluster so as to suppress inter-cluster interference with other neighboring clusters less than or equal to a predetermined value, the cluster pattern is defining a directional pattern of which directional beams emitted from the respective radio base stations face each other for each identical frequency block between neighboring sectors in a cluster composed of neighboring cells, the each cluster pattern being in different combinations of directional patterns and frequency blocks.
摘要翻译： 本发明的无线通信系统具备：群集模式决定部61，其确定各群集模式对每个簇的分配，以抑制与小于或等于规定值的其他相邻簇的群间干扰， 簇模式定义了从各个无线电基站发射的定向波束对于由相邻小区组成的群集中的相邻扇区之间的每个相同频率块彼此面对的方向模式，每个簇模式处于不同的方向模式和频率组合 块。
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公开(公告)号：US20100272211A1
公开(公告)日：2010-10-28
申请号：US12763485
申请日：2010-04-20
申请人： Yusuke OHWATARI , Anass Benjebbour
发明人： Yusuke OHWATARI , Anass Benjebbour
CPC分类号： H04B7/0426 , H04B7/0465 , H04B7/0691 , H04W52/367 , H04W52/42 , H04W52/50
摘要： A disclosed radio communication method includes precoding modulated information signal sequences to calculate transmit weight information, setting initial transmit power based on prior information including the calculated transmit weight information, generating an objective function of a user channel capacity for a constrained optimization problem based on the transmit weight information and the initial transmit power, generating a new objective function by adding a barrier function to the objective function, using an initial temporary barrier parameter to initiate iteration of an optimization operation for the new objective function, setting an initial barrier parameter based on comparison between the current and previous outputs, calculating transmit power to optimize the new objective function in accordance with an interior point method based on the initial transmit power and the initial barrier parameter and allocating the calculated transmit power to the respective transmit antennas.
摘要翻译： 所公开的无线电通信方法包括预编码调制信息信号序列以计算发送权重信息，基于包括所计算的发送权重信息的先前信息来设置初始发送功率，基于所述发送权重信息生成约束优化问题的用户信道容量的目标函数 权重信息和初始发送功率，通过向目标函数添加屏障功能来生成新的目标函数，使用初始临时屏障参数来初始化新目标函数的优化操作的迭代，基于比较设置初始屏障参数 在当前和先前输出之间，根据基于初始发射功率和初始屏障参数的内点方法计算发射功率以优化新的目标函数，并将计算的发射功率分配给各个发射天线 如。
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公开(公告)号：US20090207931A1
公开(公告)日：2009-08-20
申请号：US12368540
申请日：2009-02-10
IPC分类号： H04B7/02
CPC分类号： H04L25/03343 , H04L27/2621 , H04L2025/03414 , H04L2025/03426
摘要： A wireless communication device that transmits a wireless signal by carrying out linear precoding processing using a plurality of transmission antennas is provided with: a phase pattern control unit for selecting a phase pattern that reduces peak-to-average power ratio; a phase rotation unit for carrying out phase rotation on a modulation signal using the phase pattern selected in the phase pattern control unit; a control signal generation unit for generating a control signal based on the phase pattern selected in the phase pattern control unit; and a preceding unit for carrying out linear precoding processing on output signals from the phase rotation unit and output signals from the control signal generation unit.
摘要翻译： 通过使用多个发送天线进行线性预编码处理来发送无线信号的无线通信装置具有：相位图案控制部，其选择降低峰值与平均功率比的相位图案; 相位旋转单元，用于使用在相位图案控制单元中选择的相位图案对调制信号进行相位旋转; 控制信号生成单元，用于基于在相位图案控制单元中选择的相位图形生成控制信号; 以及用于对来自相位旋转单元的输出信号和来自控制信号生成单元的输出信号进行线性预编码处理的前一单元。
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