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31.发明授权公开(公告)号：US08315657B2
公开(公告)日：2012-11-20
申请号：US12563877
申请日：2009-09-21
IPC分类号： H04B17/00
CPC分类号： H04B7/0617 , H04B7/024 , H04B7/0632
摘要： A system and method for enabling coordinated beam switching and scheduling in a wireless communications system. A method for controller operation includes indicating that the controller is operating in a cooperative beam switching mode, transmitting a beam formed reference signal (BFRS), from each communications device being served by the controller, receiving a measurement of a communications channel between the controller and the communications device and an indicator indicating a transmission unit corresponding to the measurement of the communications channel, receiving a transmission intended for a communications device, and causing the transmission to be transmitted to the communications device. The BFRS is beam formed using a plurality of beam patterns, the beam pattern used in beam forming the BFRS changes once per transmission unit, and the transmission is transmitted using measurement of the communications channel and the indicator from the communications device.
摘要翻译： 一种用于在无线通信系统中实现协调的波束切换和调度的系统和方法。 一种用于控制器操作的方法包括指示控制器以协作波束切换模式操作，从由控制器服务的每个通信设备发送波束形成的参考信号（BFRS），接收控制器与控制器之间的通信信道的测量 所述通信设备和指示与所述通信信道的测量对应的传输单元的指示符，接收针对通信设备的传输，并且使所述传输被发送到所述通信设备。 BFRS使用多个波束图案波束形成，用于形成BFRS的波束中的波束图案每个发送单元改变一次，并且使用通信设备的通信信道和指示符的测量来发送传输。
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公开(公告)号：US08112038B2
公开(公告)日：2012-02-07
申请号：US11532488
申请日：2006-09-15
申请人： Ye Li , Anthony C. K. Soong , Yinggang Du , Jianmin Lu
发明人： Ye Li , Anthony C. K. Soong , Yinggang Du , Jianmin Lu
IPC分类号： H04B1/00
CPC分类号： H04B7/0452 , H04B7/0439 , H04B7/0617
摘要： Disclosed herein is a system and method for downlink beamforming that takes into account imperfect channel state information (CSI) at the transmitter when determining the steering vector used in the beamforming process. The steering vector is calculated to increase the ratio of the average power of a desired signal component to the sum of the interference power of other wireless terminals, referred to as the signal-to-leakage ratio. By accounting for imperfect CSI when calculating the steering vector, the bit-error rate for a given signal-to-noise ratio is decreased. Also disclosed is a power allocation method that improves performance of the system by increasing the signal-to-interference-plus-noise ratio for all of the wireless terminals currently communicating with the base station. The power allocation similarly decreases the bit-error rate for a given signal-to-noise ratio, especially at high signal-to-noise ratios.
摘要翻译： 这里公开了一种用于下行链路波束成形的系统和方法，其在确定在波束形成处理中使用的导向向量时考虑到发射机处的不完美信道状态信息（CSI）。 计算导向矢量以增加所需信号分量的平均功率与其它无线终端的干扰功率之和的比率，称为信号与泄漏比。 通过在计算导向矢量时考虑不完善的CSI，给定信噪比的误码率降低。 还公开了一种功率分配方法，其通过增加当前与基站通信的所有无线终端的信号与干扰加噪声比来提高系统的性能。 功率分配类似地降低给定信噪比的比特误码率，特别是在高信噪比下。
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公开(公告)号：US08041313B2
公开(公告)日：2011-10-18
申请号：US12412624
申请日：2009-03-27
IPC分类号： H04B1/38
CPC分类号： H04B7/0632 , H01Q3/40 , H01Q25/00 , H04B7/0602 , H04B7/0669 , H04B7/0695 , H04B7/10 , H04W16/28 , H04W88/08
摘要： A system and method for wirelessly communicating using beamswitching is provided. A communications system includes a high-power signal cable coupled to a signal amplifier, a radio frequency circuit coupled to the high-power signal cable, and a control unit coupled to the radio frequency circuit. The high-power signal cable conveys a transmission signal produced by the signal amplifier. The radio frequency circuit includes a plurality of antennas, a passive network having a plurality of output ports and a plurality of input ports, each output port coupled to an antenna of the plurality of antennas, and a plurality of switches coupled to the high-power signal cable, each switch coupled to an input port in the plurality of input ports. The control unit produces the control signal based on a specified coupling of the high-power signal cable to the passive network.
摘要翻译： 提供了一种使用光束切换进行无线通信的系统和方法。 通信系统包括耦合到信号放大器的高功率信号电缆，耦合到大功率信号电缆的射频电路以及耦合到射频电路的控制单元。 高功率信号电缆传输由信号放大器产生的传输信号。 射频电路包括多个天线，具有多个输出端口和多个输入端口的无源网络，每个输出端口耦合到多个天线中的天线，以及耦合到大功率的多个开关 信号电缆，每个开关耦合到多个输入端口中的输入端口。 控制单元根据大功率信号电缆与被动网络的指定耦合产生控制信号。
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34.发明授权System for minimizing signaling overhead in OFDMA-based communication systems 有权用于在基于OFDMA的通信系统中最小化信令开销的系统公开(公告)号：US07864740B2
公开(公告)日：2011-01-04
申请号：US11685079
申请日：2007-03-12
申请人： Yunsong Yang , Anthony C. K. Soong , Jianmin Lu , Jung Woon Lee
发明人： Yunsong Yang , Anthony C. K. Soong , Jianmin Lu , Jung Woon Lee
IPC分类号： H04J3/00
CPC分类号： H04B7/2621
摘要： A system of physical layer packet format and signaling methods is disclosed, wherein signaling overhead is minimized in applications where multiple users share air interface resources; improving efficiency in orthogonal frequency division multiplexing (OFDM) and orthogonal frequency division multiple access (OFDMA) communication systems.
摘要翻译： 公开了一种物理层分组格式和信令方法的系统，其中在多个用户共享空中接口资源的应用中信令开销最小化; 提高正交频分复用（OFDM）和正交频分多址（OFDMA）通信系统的效率。
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公开(公告)号：US06370109B1
公开(公告)日：2002-04-09
申请号：US09265205
申请日：1999-03-10
IPC分类号： H04B7216
CPC分类号： H04W52/52
摘要： The invention is CDMA quadrature signal technology that controls the transmit power of a CDMA signal. The CDMA quadrature signal technology receives a CDMA signal, and in response, process quadrature components of the CDMA signal to generate a power control signal. The CDMA quadrature signal technology adjusts the gain of the CDMA signal in response to the power control signal. A CDMA transmitter transmits the CDMA signal after the gain is adjusted. One example of the CDMA transmitter is a CDMA base station. Using the invention, a multi-sector CDMA base station can control power without transferring gain information to base station components for all sectors. The invention eliminates unnecessary data transfer and storage.
摘要翻译： 本发明是控制CDMA信号发射功率的CDMA正交信号技术。 CDMA正交信号技术接收CDMA信号，作为响应，处理CDMA信号的正交分量以产生功率控制信号。 CDMA正交信号技术响应于功率控制信号来调整CDMA信号的增益。 增益调整后，CDMA发射机发送CDMA信号。 CDMA发射机的一个例子是CDMA基站。 使用本发明，多扇区CDMA基站可以控制功率而不向所有扇区的基站组件传输增益信息。 本发明消除了不必要的数据传输和存储。
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公开(公告)号：US09210730B2
公开(公告)日：2015-12-08
申请号：US13458278
申请日：2012-04-27
申请人： Philippe Sartori , Wan Lei , Brian Classon , Yunsong Yang , Anthony C. K. Soong
发明人： Philippe Sartori , Wan Lei , Brian Classon , Yunsong Yang , Anthony C. K. Soong
CPC分类号： H04W76/023 , H04W8/005 , H04W28/06 , H04W76/14 , H04W92/18
摘要： A method of establishing a direct mobile communications (DMC) link between a first user equipment (UE) and a second UE, where at least one of the first UE and the second UE is communicating on a first cellular link includes requesting that at least one of the first UE and the second UE participate in an evaluation procedure to determine a potential quality of a DMC link proposed between the first UE and the second UE. The method also includes receiving a report from at least one of the first UE and the second UE indicating the potential quality of the DMC link proposed between the first UE and the second UE according to the evaluation procedure. The method further includes establishing the DMC link between the first UE and the second UE if the potential quality of the DMC link exceeds a predetermined threshold.
摘要翻译： 在第一用户设备（UE）和第二UE之间建立直接移动通信（DMC）链路的方法，其中第一UE和第二UE中的至少一个正在第一蜂窝链路上进行通信包括请求至少一个 的第一UE和第二UE参与评估过程以确定在第一UE和第二UE之间提出的DMC链路的潜在质量。 该方法还包括根据评估过程从第一UE和第二UE中的至少一个接收指示在第一UE与第二UE之间建议的DMC链路的潜在质量的报告。 该方法还包括如果DMC链路的潜在质量超过预定阈值，则建立第一UE与第二UE之间的DMC链路。
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公开(公告)号：US09198142B2
公开(公告)日：2015-11-24
申请号：US12259574
申请日：2008-10-28
CPC分类号： H04W52/343 , H04W52/50 , H04W72/1231
摘要： A transceiver and a method of transmitting data are provided. A frequency band, such as a licensed frequency band, is monitored during a sensing block. Based upon the use of the frequency band during the sensing block, a probability of non-interfering is calculated during a plurality of time periods in a subsequent inter-sensing block. The probability of non-interfering is used by the transceiver to determine a transmit power level such that the possibility of interference with licensed use on the frequency band is reduced. Embodiments of the present invention may be used to improve the transmission rate of the cognitive radio user.
摘要翻译： 提供收发器和发送数据的方法。 在感测块期间监视诸如许可频带的频带。 基于在感测块期间使用频带，在随后的互感块中的多个时间段期间计算不干扰的概率。 收发器使用非干扰的概率来确定发射功率电平，使得在频带上干扰许可使用的可能性降低。 本发明的实施例可以用于提高认知无线电用户的传输速率。
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38.发明授权公开(公告)号：US08326227B2
公开(公告)日：2012-12-04
申请号：US12249813
申请日：2008-10-10
IPC分类号： H04B1/00
CPC分类号： H04W16/14 , H04B7/2606 , H04W16/28
摘要： System and method for exploiting spatial spectrum holes (SSH) in the time/spectrum/location of wireless resources. A method comprises setting a directional antenna to a first transmission direction, determining a state of a spectrum band in the first transmission direction, transmitting information in the first transmission direction to the receiver in response to determining that the spectrum band state is idle and that the receiver lies within a coverage area of a transmitter, and transmitting the information in the first transmission direction to a first relay in response to determining that the spectrum band state is idle and that the receiver lies without the coverage area of the transmitter.
摘要翻译： 在无线资源的时间/频谱/位置利用空间谱空穴（SSH）的系统和方法。 一种方法包括将定向天线设置为第一传输方向，确定第一传输方向上的频带的状态，响应于确定频谱带状态为空，将第一传输方向的信息发送给接收机，并且 接收机位于发射机的覆盖区域内，并且响应于确定频谱带状态为空闲并且接收机在没有发射机的覆盖区域的情况下，将第一传输方向上的信息发送到第一中继站。
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39.发明授权System and method for scheduling of spectrum sensing in cognitive radio systems 有权认知无线电系统中频谱感知调度的系统和方法公开(公告)号：US08315645B2
公开(公告)日：2012-11-20
申请号：US12258266
申请日：2008-10-24
CPC分类号： H04W24/10 , H04W16/14 , H04W72/1231
摘要： System and method for scheduling spectrum sensing in cognitive radio systems. A method comprises sensing an availability of a spectrum band, computing a duration of an inter-sensing time block based on the availability of the spectrum band, and scheduling an occurrence of the spectrum sensing operation using the duration of the inter-sensing time block. Computing the duration of the inter-sensing time block based on the availability of the spectrum band allows for an optimization of communications of the cognitive radio system, thereby increasing spectral efficiency and reducing interference to licensed communications.
摘要翻译： 在认知无线电系统中调度频谱感知的系统和方法。 一种方法包括感测频谱带的可用性，基于频谱带的可用性来计算互感时间块的持续时间，以及使用所述互感时间块的持续时间来调度频谱感测操作的发生。 基于频谱带的可用性计算互感时间块的持续时间允许认知无线电系统的通信的优化，从而增加频谱效率并减少对许可通信的干扰。
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40.发明授权Method and system for managing radio resources for soft handoff in an OFDMA-based communication system 有权在基于OFDMA的通信系统中管理用于软切换的无线电资源的方法和系统公开(公告)号：US08085711B2
公开(公告)日：2011-12-27
申请号：US11844332
申请日：2007-08-23
申请人： Anthony C. K. Soong , Zhigang Rong , Jianmin Lu
发明人： Anthony C. K. Soong , Zhigang Rong , Jianmin Lu
IPC分类号： H04W4/00
CPC分类号： H04W36/18
摘要： A method and system is disclosed for managing resource within a predetermined soft handoff group in an OFDM based telecommunications system. Logical radio resources are separated into at least one set to support the soft handoff group and at least one set for supporting normal communication traffic. At least one physical radio resource is identified for each logical radio resource in the set for supporting the SHOG according to a predetermined mapping function so as to minimize resource collision.
摘要翻译： 公开了用于在基于OFDM的电信系统中管理预定软切换组内的资源的方法和系统。 逻辑无线电资源被分成至少一个集合以支持软切换组和至少一个用于支持正常通信业务的集合。 根据预定的映射函数，为集合中的每个逻辑无线电资源识别至少一个物理无线电资源以支持SHOG，以便最小化资源冲突。
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