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公开(公告)号：US08798120B2
公开(公告)日：2014-08-05
申请号：US12727049
申请日：2010-03-18
IPC分类号： H04B1/38
CPC分类号： H04B7/0877 , H04B7/0417 , H04B7/063 , H04B7/0689 , H04W52/0261 , Y02D70/1262 , Y02D70/1264 , Y02D70/146 , Y02D70/444
摘要： Examples are generally described that include methods for selecting a transmit mode in a communications system. An example method may include calculating a first transmission rate for data in a multiple-input multiple-output mode of the communications system and calculating a second transmission rate for the data in a single-input multiple-output mode of the communications system. A mode may be selected from the group consisting of the multiple-input multiple-output mode and the single-input multiple-output mode based, at least in part, on an energy consumption of the first and second transmission rates. Data may be transmitted from a transceiver in the communications system using the selected mode.
摘要翻译： 通常描述包括在通信系统中选择发送模式的方法的示例。 示例性方法可以包括为通信系统的多输入多输出模式中的数据计算第一传输速率，并计算通信系统的单输入多输出模式中的数据的第二传输速率。 至少部分地基于第一和第二传输速率的能量消耗，从多输入多输出模式和单输入多输出模式中选择模式。 可以使用所选择的模式从通信系统中的收发器发送数据。
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2.发明授权Method and apparatus for beam-forming signal in multi user-MIMO wireless communication system 有权多用户MIMO无线通信系统中波束形成信号的方法和装置公开(公告)号：US08217835B2
公开(公告)日：2012-07-10
申请号：US12660644
申请日：2010-03-02
IPC分类号： H01Q3/00
CPC分类号： H04B7/043 , H04B7/0452
摘要： A base station is capable of transmitting a signal in a wireless communication network. The base station decides channel state information matrices of respective channels by determining a state of the channels corresponding to respective transmission antennas. The base station calculates transmission beam forming vectors for the respective transmission antennas by a combination of a dot product and a cross product of the channel state information matrices. Thereafter, the base station beam-forms signals for the respective transmission antennas by using the respective transmission beam forming vectors, and transmitting the beam-formed signals.
摘要翻译： 基站能够在无线通信网络中发送信号。 基站通过确定与各个发送天线相对应的信道的状态来确定各信道的信道状态信息矩阵。 基站通过信道状态信息矩阵的点积和交叉乘积的组合来计算各个发送天线的发送波束形成向量。 此后，基站通过使用各个发送波束形成向量波束形成各个发送天线的信号，并发送波束形成的信号。
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3.发明授权Apparatus and method for extending number of antennas in a wireless communication system using multiple antennas 有权在使用多个天线的无线通信系统中扩展天线数量的装置和方法公开(公告)号：US07764744B2
公开(公告)日：2010-07-27
申请号：US11523278
申请日：2006-09-18
CPC分类号： H04L1/0656 , H04B7/063 , H04B7/0634 , H04B7/0689 , H04L25/0206 , H04L25/0224 , H04L27/2608
摘要： An apparatus and method for simultaneously providing service to users each having a different number of antennas in a multiple-antenna wireless communication system are provided. The communication method discloses a BS in a wireless communication system that services a first multiple antenna mode using X transmit antennas and a second multiple antenna mode using Y transmit antennas such that (Y>X), the BS determines an MS to be serviced in the second multiple antenna mode and receives a sounding signal from the MS. The BS estimates an uplink channel using the received sounding signal and acquires downlink channel values using estimated uplink channel values. Then the BS services the MS in the second multiple antenna mode using the downlink channel values.
摘要翻译： 提供了一种用于在多天线无线通信系统中同时向具有不同天数的用户提供服务的装置和方法。 该通信方法公开了使用X个发射天线来服务第一多天线模式的无线通信系统中的BS，以及使用Y个发射天线的第二多天线模式，使得（Y> X），BS确定要在 第二多天线模式并从MS接收探测信号。 BS使用接收到的探测信号估计上行链路信道，并且使用估计的上行链路信道值来获取下行链路信道值。 然后BS使用下行链路信道值在第二多天线模式中服务于MS。
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4.发明授权Apparatus and method for minimizing a PAPR in an OFDM communication system 失效用于使OFDM通信系统中的PAPR最小化的装置和方法公开(公告)号：US07664192B2
公开(公告)日：2010-02-16
申请号：US11247787
申请日：2005-10-11
申请人： Sung-Ryul Yun , Chan-Byoung Chae , Hong-Sil Jeong , Dong-Seek Park , Won-Il Roh , Jae-Yoel Kim , Pan-Yuh Joo , Jeong-Tae Oh , Kyun-Byoung Ko
发明人： Sung-Ryul Yun , Chan-Byoung Chae , Hong-Sil Jeong , Dong-Seek Park , Won-Il Roh , Jae-Yoel Kim , Pan-Yuh Joo , Jeong-Tae Oh , Kyun-Byoung Ko
IPC分类号： H04B7/02
CPC分类号： H04B7/068 , H04B7/0848 , H04B7/0854 , H04L1/0606 , H04L1/0668 , H04L27/2615 , H04L27/2628 , H04L27/265
摘要： A transmitter for minimizing a PAPR in OFDM communication system. The transmitter includes: a precoder for coding input symbols so that a signal rotation is generated, and generating a complex vector including the coded symbols; an encoder for performing a frequency-space mapping for the symbols generated as the complex vector according to a predetermined scheme; a random mapper for randomly mapping the symbols for which the frequency-space mapping has been performed on a frequency plane through at least one transmit antenna; an Inverse Fast Fourier Transform (IFFT) unit for performing an IFFT for the symbols for which the frequency-space mapping has been performed; and a gradient algorithm unit for receiving IFFTed signals from the IFFT unit and reducing the PAPR.
摘要翻译： 用于最小化OFDM通信系统中的PAPR的发射机。 发射机包括：预编码器，用于对输入符号进行编码，从而产生信号旋转，并产生包括编码符号的复矢量; 编码器，用于根据预定方案对作为所述复矢量生成的符号执行频率 - 空间映射; 随机映射器，用于通过至少一个发射天线在频率平面上随机映射已经对其进行频率 - 空间映射的符号; 用于对已经执行了频率 - 空间映射的符号执行IFFT的逆快速傅里叶变换（IFFT）单元; 以及用于从IFFT单元接收IFFT信号并减少PAPR的梯度算法单元。
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5.发明授权Method for supporting various multi-antenna schemes in BWA system using multiple antennas 有权在使用多个天线的BWA系统中支持各种多天线方案的方法公开(公告)号：US07660607B2
公开(公告)日：2010-02-09
申请号：US11268893
申请日：2005-11-08
申请人： Jeong-Tae Oh , Won-Il Roh , Kyun-Byoung Ko , Jae-Ho Jeon , Sung-Ryul Yun , Hong-Sil Jeong , Chan-Byoung Chae , Seung-Joo Maeng
发明人： Jeong-Tae Oh , Won-Il Roh , Kyun-Byoung Ko , Jae-Ho Jeon , Sung-Ryul Yun , Hong-Sil Jeong , Chan-Byoung Chae , Seung-Joo Maeng
CPC分类号： H04L1/0625 , H04B7/0417 , H04B7/0634 , H04B7/0639 , H04B7/0689 , H04B7/0697 , H04L1/0026 , H04L1/0029 , H04L1/0643 , H04L1/0662 , H04L1/0668 , H04L1/0687
摘要： Disclosed is a method for using various multiple antenna schemes in a baseband wireless access system is provided. According to the method, a downlink MAP message is constructed in order to support various multiple antenna schemes based on a multiple-input multiple output (MIMO), which is one of the multiple antenna schemes, so that compatibility with exiting MIMO technology having no MIMO feedback can be achieved and overhead occurring in transmission of an MAP information element can be reduced. Further, it is possible to efficiently support spatial multiplexing technology capable of transmitting multiple layers having different modulation and coding in a MIMO system.
摘要翻译： 公开了一种在基带无线接入系统中使用各种多天线方案的方法。 根据该方法，构建下行链路MAP消息以便支持基于作为多个天线方案之一的多输入多输出（MIMO）的各种多天线方案，从而与不具有MIMO的退出MIMO技术的兼容性 可以实现反馈并且可以减少在MAP信息元素的传输中发生的开销。 此外，可以有效地支持能够在MIMO系统中发送具有不同调制和编码的多个层的空间复用技术。
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6.发明申请公开(公告)号：US20090252250A1
公开(公告)日：2009-10-08
申请号：US12417426
申请日：2009-04-02
CPC分类号： H04B7/0617 , H04B7/0417
摘要： An apparatus and method for beamforming in a Multiple Input Multiple Output (MIMO) wireless communication system are provided. A Base Station (BS) includes a calculator for generating relational expressions between beamforming vectors of Mobile Stations (MSs) using channel information of each MS, for determining beamforming vector candidates of each MS from the relational expressions using generalized Eigen-analysis, and for selecting beamforming vectors for each MS from the beamforming vector candidates, and a plurality of Transmit (Tx) beamformers for performing Tx beamforming on dedicated pilot symbols to be transmitted to each MS using the beamforming vectors for each MS.
摘要翻译： 提供了一种用于多输入多输出（MIMO）无线通信系统中的波束成形的装置和方法。 基站（BS）包括使用每个MS的信道信息来生成移动站（MS）的波束成形向量之间的关系表达式的计算器，用于使用广义特征分析从关系表达式确定每个MS的波束形成向量候选，并且用于选择 波束形成向量候选的每个MS的波束成形向量，以及多个发射（Tx）波束形成器，用于在专用导频符号上执行Tx波束形成，以使用每个MS的波束成形向量发射到每个MS。
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7.发明授权Apparatus and method for receiving signal in mobile communication system using adaptive antenna array scheme 有权使用自适应天线阵列方案在移动通信系统中接收信号的装置和方法公开(公告)号：US07483502B2
公开(公告)日：2009-01-27
申请号：US10922467
申请日：2004-08-20
IPC分类号： H04L25/08
CPC分类号： H04B7/086
摘要： A method for receiving a signal from a radio unit in a base station having at least one reception antenna is disclosed. The method includes receiving a reception signal via the reception antenna, and generating an output signal using the reception signal and a reception beam weight for a previous time; calculating a cost function using a desired reception signal transmitted from the radio unit among the reception signal and the generated output signal; calculating a trace vector using the calculated cost function and the reception signal; updating the reception beam weight using the trace vector for a next time; and generating a reception beam by applying the updated reception beam weight.
摘要翻译： 公开了一种用于从具有至少一个接收天线的基站中的无线电单元接收信号的方法。 该方法包括经由接收天线接收接收信号，并使用接收信号和前一时刻的接收波束权重产生输出信号; 使用从所述无线单元在所述接收信号和所生成的输出信号中发送的期望接收信号来计算成本函数; 使用计算的成本函数和接收信号计算跟踪向量; 使用跟踪向量更新下一次的接收波束权重; 以及通过应用更新的接收波束权重来产生接收波束。
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8.发明授权Apparatus and method for determining a soft handover in a CDMA mobile communication system 有权用于确定CDMA移动通信系统中的软切换的装置和方法公开(公告)号：US07436803B2
公开(公告)日：2008-10-14
申请号：US10341937
申请日：2003-01-14
申请人： Chan-Byoung Chae , In-Bum Chang
发明人： Chan-Byoung Chae , In-Bum Chang
IPC分类号： H04Q7/00
摘要： A mobile station that determines whether to perform a soft handover in a CDMA mobile communication system and method thereof. The mobile station compares strength of a signal received from a source BTS (Base Transceiver Station) with a prescribed reference value. If the strength of the signal received from the source BTS is larger than the reference value, the mobile station determines whether to perform a soft handover based on a new offset value being smaller than a previous hysteresis no matter how strong a signal received from a target BTS is.
摘要翻译： 一种移动站，其确定是否在CDMA移动通信系统中执行软切换及其方法。 移动台将从源BTS（基站收发台）接收的信号的强度与规定的基准值进行比较。 如果从源BTS接收到的信号的强度大于参考值，则移动台基于新的偏移值小于先前的滞后来确定是否执行软切换，无论信号从目标 BTS是。
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9.发明申请Apparatus and method for transmitting and receiving data using space-time block coding 审中-公开使用空时块编码发送和接收数据的装置和方法公开(公告)号：US20070291638A1
公开(公告)日：2007-12-20
申请号：US11809671
申请日：2007-06-01
申请人： Chan-Byoung Chae , Sung-Ryul Yun , Hong-Sil Jeong , Won-Il Roh , Jeong-Tae Oh , Kyun-Byoung Ko , Young-Ho Jung , Seung-Hoon Nam , Jae-Hak Chung
发明人： Chan-Byoung Chae , Sung-Ryul Yun , Hong-Sil Jeong , Won-Il Roh , Jeong-Tae Oh , Kyun-Byoung Ko , Young-Ho Jung , Seung-Hoon Nam , Jae-Hak Chung
IPC分类号： H04J11/00
CPC分类号： H04B7/0669 , H04L1/0618
摘要： A space-time block coding (STBC) apparatus and method for a transmitter with four Tx antennas is provided. An input symbol sequence is transmitted through the four Tx antennas in a predetermined method based on feedback information received from a receiver, thereby improving the performance of an STBC.
摘要翻译： 提供了一种具有四个Tx天线的发射机的时空块编码（STBC）装置和方法。 基于从接收器接收到的反馈信息，以预定方法通过四个Tx天线发送输入符号序列，从而提高STBC的性能。
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10.发明授权Apparatus and method for receiving signals in a mobile communication system using adaptive antenna array technology 有权在使用自适应天线阵列技术的移动通信系统中接收信号的装置和方法公开(公告)号：US07236744B2
公开(公告)日：2007-06-26
申请号：US10914461
申请日：2004-08-09
申请人： Chan-Byoung Chae , Pan-Yuh Joo , Seok-Hyun Yoon
发明人： Chan-Byoung Chae , Pan-Yuh Joo , Seok-Hyun Yoon
IPC分类号： H04B15/00
CPC分类号： H04B7/086 , H04B7/0854
摘要： A base station having at least one reception antenna generates a reception beam using a previous reception beam weight and a despread signal of a current reception signal, calculates an error value indicating a difference between the current reception signal and a desired reception signal, and calculates a current reception beam weight using the previous reception beam weight, the despread signal and the error value. The base station generates a reception beam weight step value using the error value and an output signal, calculates a difference between the previous reception beam weight and a product of the reception beam weight step value, the despread signal, and a conjugate value of the error value, as the current reception beam weight, and selects the reception beam weight step value such that the current reception beam weight becomes the optimal reception beam.
摘要翻译： 具有至少一个接收天线的基站使用先前接收波束权重和当前接收信号的去扩展信号来生成接收波束，计算表示当前接收信号与期望接收信号之间的差的误差值，并计算出 使用先前接收波束权重的当前接收波束权重，解扩信号和误差值。 基站使用误差值和输出信号生成接收波束加权步长值，计算先前的接收波束权重与接收波束权重步长值，解扩展信号和误差的共轭值之间的差 作为当前接收波束权重，并且选择接收波束加权步长值使得当前接收波束权重变为最佳接收波束。
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