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公开(公告)号：US08385861B2
公开(公告)日：2013-02-26
申请号：US12431894
申请日：2009-04-29
IPC分类号： H04B1/04
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：US07804797B2
公开(公告)日：2010-09-28
申请号：US11847810
申请日：2007-08-30
申请人： Shinichi Mori , Tomoyuki Ooya , Takatoshi Sugiyama
发明人： Shinichi Mori , Tomoyuki Ooya , Takatoshi Sugiyama
CPC分类号： H04W52/286 , H04W8/005 , H04W24/00 , H04W52/04 , H04W52/143 , H04W52/16 , H04W52/243 , H04W52/244 , H04W52/245 , H04W52/343 , H04W52/367 , H04W52/386 , H04W52/50 , H04W74/08 , H04W84/12 , H04W88/08
摘要： A communication control device is provided which efficiently utilizes wireless resources to improve communication quality and system throughput by appropriately setting and performing node transmission power. The communication control device in a wireless LAN system includes a sender 206, a receiver 207, and an inter-AP communication function 211 for determining, based on at least one of wireless information obtained by measurement of a wireless signal by an access point 103 or a station 104a, or reported wireless information, whether or not there is a neighboring BSS, and a transmission power determination function 210 and a transmission power setting/update function 205 for setting and updating the transmission power of the access point 103 and the station 104a in its own BSS when there is a neighboring BSS in which all the access point have the control function of the transmission power, on the other hand, for maximizing the transmission power when there is no neighboring BSS or when there is a neighboring BSS that does not control the transmission power.
摘要翻译： 提供一种通过适当地设定和执行节点发送功率来有效利用无线资源来提高通信质量和系统吞吐量的通信控制装置。 无线LAN系统中的通信控制装置包括发送器206，接收器207和AP间通信功能211，用于基于通过接入点103测量无线信号获得的无线信息中的至少一个或 站104a或报告的无线信息，是否存在相邻BSS，以及用于设置和更新接入点103和站点104a的发送功率的发送功率确定功能210和发送功率设置/更新功能205 另一方面，当存在其中所有接入点具有发射功率的控制功能的相邻BSS时，在其自己的BSS中，为了在没有相邻BSS时最大化发射功率，或者当存在相邻BSS 不控制传输功率。
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3.发明申请COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD 有权通信系统，传输设备，接收设备和通信方法公开(公告)号：US20100104042A1
公开(公告)日：2010-04-29
申请号：US12531483
申请日：2008-03-12
CPC分类号： H04L25/03006 , H04L5/0005 , H04L5/0044 , H04L25/03821 , H04L25/03834 , H04L27/2602 , H04L2025/03414 , H04L2025/03509
摘要： There is provided a communication system capable of achieving a high usage efficiency of frequencies without the need for cooperation of multiplexed users. A communication system communicates over frequency channels set by dividing a frequency bandwidth assigned to the system allows interference between channels by overlapping the adjacent frequency channels with each other in the frequency domain, or a transmitting and receiving device, which transmits and receives a signal by allowing the interference between symbols at a waveform level for each channel to decrease the occupied bandwidth, is provided with ICI removal and ISI compensation filter 111 serving as either an ICI removal filter for removing the interference between channels or an ISI compensation filter for compensating the interference between symbols.
摘要翻译： 提供了能够实现频率高的使用效率而不需要复用用户的协作的通信系统。 通信系统通过分配给该系统的频带分配而设置的频道进行通信，通过在频域中相互重叠相邻频道，允许信道之间的干扰，或发送和接收装置，其通过允许发送和接收信号来发送和接收信号 提供了用于减少占用带宽的每个信道的波形级别处的符号之间的干扰，作为用于去除信道之间的干扰的ICI去除滤波器的ICI去除和ISI补偿滤波器，或者用于补偿ISI补偿滤波器之间的干扰 符号。
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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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5.发明授权Communication system, transmission device, reception device, and communication method 有权通信系统，传输设备，接收设备和通信方式公开(公告)号：US08588325B2
公开(公告)日：2013-11-19
申请号：US12531483
申请日：2008-03-12
IPC分类号： H04B15/00
CPC分类号： H04L25/03006 , H04L5/0005 , H04L5/0044 , H04L25/03821 , H04L25/03834 , H04L27/2602 , H04L2025/03414 , H04L2025/03509
摘要： A communication system capable of achieving a high usage efficiency of frequencies without the need for cooperation of multiplexed users is disclosed. The communication system communicates over frequency channels set by dividing a frequency bandwidth assigned to the system and allows interference between channels by overlapping the adjacent frequency channels with each other in the frequency domain. A transmitting and receiving device, which transmits and receives a signal by allowing the interference between symbols at a waveform level for each channel to decrease the occupied bandwidth, is provided. The receiving device is provided with an Inter-Channel Interference (ICI) removal and Inter-Symbol Interference (ISI) compensation filter serving as either an ICI removal filter for removing the interference between channels or an ISI compensation filter for compensating the interference between symbols.
摘要翻译： 公开了能够实现高频率使用效率而不需要复用用户协作的通信系统。 通信系统通过对分配给系统的频带进行分频而设置的频道进行通信，并且通过在频域中彼此重叠相邻频道来允许频道之间的干扰。 提供了一种发送和接收装置，其通过允许每个信道的波形级别的符号之间的干扰来减少占用带宽来发送和接收信号。 该接收装置具有用作去除信道之间的干扰的ICI去除滤波器或用于补偿符号之间的干扰的ISI补偿滤波器的信道间干扰（ICI）去除和符号间干扰（ISI）补偿滤波器。
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公开(公告)号：US08224369B2
公开(公告)日：2012-07-17
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 precoding 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 precoding 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预编码单元，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预编码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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公开(公告)号：US08095169B2
公开(公告)日：2012-01-10
申请号：US12432174
申请日：2009-04-29
IPC分类号： H04B1/00
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：US20100128457A1
公开(公告)日：2010-05-27
申请号：US12595851
申请日：2008-03-26
申请人： Tomoyuki Ooya
发明人： Tomoyuki Ooya
CPC分类号： H05K7/20172
摘要： A plurality of fan unit mounting projections are each extended substantially in parallel with a rotary shaft of a fan included in a fan unit and are provided integrally to a fan unit mounting part. A belt-shaped elastic body is hung onto each of the fan unit mounting projections, and is made in contact with a plurality of locations on an outer peripheral part of the fan unit. The fan unit is retained, while being spaced apart from the fan unit mounting part in a direction along the rotary shaft of the fan, due to a clipping force of the belt-shaped elastic body.
摘要翻译： 多个风扇单元安装突起分别与包括在风扇单元中的风扇的旋转轴基本平行地延伸，并且与风扇单元安装部一体地设置。 带状弹性体悬挂在每个风扇单元安装突起上，并与风扇单元的外周部分上的多个位置接触。 由于带状弹性体的夹持力，风扇单元被保持，同时沿着风扇的旋转轴的方向与风扇单元安装部分间隔开。
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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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公开(公告)号：US08326245B2
公开(公告)日：2012-12-04
申请号：US12431894
申请日：2009-04-29
IPC分类号： H04B1/04
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.
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