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1. 发明申请

US20080152043A1 Apparatus and method for estimating channel in broadband wireless access (BWA) communication system 有权
标题翻译：宽带无线接入（BWA）通信系统估计信道的装置和方法
公开(公告)号：US20080152043A1
公开(公告)日：2008-06-26
申请号：US12003201
申请日：2007-12-20
申请人： Yoo-Chang Eun , Jeong-Soon Park , Soo-Bok Yeo , Yong-Sun Hwang , Jong-Han Lim
发明人： Yoo-Chang Eun , Jeong-Soon Park , Soo-Bok Yeo , Yong-Sun Hwang , Jong-Han Lim
IPC分类号： H03D1/00 , H04L27/06
CPC分类号： H04L25/0232 , H04L27/2647
摘要： An apparatus and a method for estimating a channel in a Broadband Wireless Access (BWA) communication system are provided. The apparatus includes a subcarrier demapper for extracting pilot symbols at preset positions for a channel estimation; and a channel estimator for acquiring channel estimate values of subcarriers through an Infinite Impulse Response (IIR) filtering using the pilot symbols provided from the subcarrier demapper and a preset filter factor. Thus, the channel condition can be estimated by taking into account the channel change.
摘要翻译：提供了一种用于估计宽带无线接入（BWA）通信系统中的信道的装置和方法。该装置包括用于在用于信道估计的预设位置处提取导频符号的子载波解映射器; 以及信道估计器，用于通过使用从子载波解映射器提供的导频符号和预设滤波器因子通过无限脉冲响应（IIR）滤波获取子载波的信道估计值。因此，可以通过考虑信道变化来估计信道条件。

2. 发明授权

US07936848B2 Apparatus and method for estimating channel in broadband wireless access (BWA) communication system 有权
标题翻译：宽带无线接入（BWA）通信系统估计信道的装置和方法
公开(公告)号：US07936848B2
公开(公告)日：2011-05-03
申请号：US12003201
申请日：2007-12-20
申请人： Yoo-Chang Eun , Jeong-Soon Park , Soo-Bok Yeo , Yong-Sun Hwang , Jong-Han Lim
发明人： Yoo-Chang Eun , Jeong-Soon Park , Soo-Bok Yeo , Yong-Sun Hwang , Jong-Han Lim
IPC分类号： H04L27/06 , H03D1/00
CPC分类号： H04L25/0232 , H04L27/2647
摘要： An apparatus and a method for estimating a channel in a Broadband Wireless Access (BWA) communication system are provided. The apparatus includes a subcarrier demapper for extracting pilot symbols at preset positions for a channel estimation; and a channel estimator for acquiring channel estimate values of subcarriers through an Infinite Impulse Response (IIR) filtering using the pilot symbols provided from the subcarrier demapper and a preset filter factor. Thus, the channel condition can be estimated by taking into account the channel change.
摘要翻译：提供了一种用于估计宽带无线接入（BWA）通信系统中的信道的装置和方法。该装置包括用于在用于信道估计的预设位置处提取导频符号的子载波解映射器; 以及信道估计器，用于通过使用从子载波解映射器提供的导频符号和预设滤波器因子通过无限脉冲响应（IIR）滤波获取子载波的信道估计值。因此，可以通过考虑信道变化来估计信道条件。

3. 发明申请

US20080031387A1 Apparatus and method for automatic gain control in a broadband wireless access communication system 有权
标题翻译：宽带无线接入通信系统中自动增益控制的装置和方法
公开(公告)号：US20080031387A1
公开(公告)日：2008-02-07
申请号：US11882596
申请日：2007-08-02
申请人： Young-Won Shin , Soo-Bok Yeo , Yong-Sun Hwang , Bong-Gee Song , Jong-Han Lim
发明人： Young-Won Shin , Soo-Bok Yeo , Yong-Sun Hwang , Bong-Gee Song , Jong-Han Lim
IPC分类号： H04L27/08
CPC分类号： H04L27/2647 , H03G3/3052 , H03G3/3068 , H04B7/0842
摘要： An AGC apparatus and method in a BWA communication system are provided, in which a MAP interpreter detects a beamformed symbol period in an (n−1)th signal, a symbol power calculator measures an average signal level of a symbol in an nth signal, and a beamforming gain calculator calculates a beamforming gain of the nth signal by adding a beamforming gain of the (n−1)th signal to a power difference between a signal of a beamformed symbol period and a signal of a non-beamformed symbol period in the nth signal using information about the beamformed symbol period of the (n−1)th signal and the average signal level of the symbol in the nth signal.
摘要翻译：提供了一种BWA通信系统中的AGC装置和方法，其中MAP解释器在第（n-1）个第信号中检测波束形成的符号周期，符号功率计算器测量平均信号电平在n ^{信号中的符号，并且波束形成增益计算器通过将第（n-1）个SUP的波束成形增益相加来计算第n个信号的波束成形增益使用关于波束形成符号周期的波束形成的符号周期的信息，使用波束形成的符号周期的信号和第n ^{信号中的非波束形成的符号周期的信号之间的功率差信号（n-1）^{信号和第n个信号中的符号的平均信号电平。}}}

4. 发明授权

US07792204B2 Apparatus and method for automatic gain control in a broadband wireless access communication system 有权
标题翻译：宽带无线接入通信系统中自动增益控制的装置和方法
公开(公告)号：US07792204B2
公开(公告)日：2010-09-07
申请号：US11882596
申请日：2007-08-02
申请人： Yong-Won Shin , Soo-Bok Yeo , Yong-Sun Hwang , Bong-Gee Song , Jong-Han Lim
发明人： Yong-Won Shin , Soo-Bok Yeo , Yong-Sun Hwang , Bong-Gee Song , Jong-Han Lim
IPC分类号： H04L27/28 , H04L27/08
CPC分类号： H04L27/2647 , H03G3/3052 , H03G3/3068 , H04B7/0842
摘要： An AGC apparatus and method in a BWA communication system are provided, in which a MAP interpreter detects a beamformed symbol period in an (n−1)th signal, a symbol power calculator measures an average signal level of a symbol in an nth signal, and a beamforming gain calculator calculates a beamforming gain of the nth signal by adding a beamforming gain of the (n−1)th signal to a power difference between a signal of a beamformed symbol period and a signal of a non-beamformed symbol period in the nth signal using information about the beamformed symbol period of the (n−1)th signal and the average signal level of the symbol in the nth signal.
摘要翻译：提供了一种在BWA通信系统中的AGC装置和方法，其中MAP解释器在第（n-1）个信号中检测波束形成的符号周期，符号功率计算器测量第n个信号中的符号的平均信号电平，并且波束成形增益计算器通过将第（n-1）个信号的波束成形增益与波束形成的符号周期的信号和非波束形成的符号周期的信号之间的功率差相加，来计算第n个信号的波束成形增益，使用关于第（n-1）个信号的波束形成的符号周期的信息的第n个信号和第n个信号中的符号的平均信号电平。

5. 发明授权

US08259631B2 Apparatus and method for time-varying cyclic delay diversity in a wireless communication system 有权
标题翻译：无线通信系统中时变循环延迟分集的装置和方法
公开(公告)号：US08259631B2
公开(公告)日：2012-09-04
申请号：US12325457
申请日：2008-12-01
申请人： Yong-Sun Hwang , Jeong-Soon Park , Yong-Won Shin
发明人： Yong-Sun Hwang , Jeong-Soon Park , Yong-Won Shin
IPC分类号： H04B7/00
CPC分类号： H04L27/2626 , H04B7/0671 , H04L27/2665
摘要： An apparatus and method for Time-Varying Cyclic Delay Diversity (TV-CDD) in a wireless communication system are provided. The method includes, if there is a signal of an antenna path to be transmitted, determining if a current time corresponds to a preamble zone within a frame and, if the current time corresponds to the preamble zone within the frame, shifting a partial antenna path signal forward compared to a reference timing and shifting a remaining partial antenna path signal equally or backward compared to the reference timing.
摘要翻译：提供了一种用于无线通信系统中的时变循环延迟分集（TV-CDD）的装置和方法。该方法包括：如果存在要发送的天线路径的信号，则确定当前时间是否对应于帧内的前导码区域，并且如果当前时间对应于帧内的前导码区域，则移位部分天线路径信号与参考定时相比，并且与参考定时相比平移或相反地移位剩余的部分天线路径信号。

6. 发明申请

US20060176871A1 Apparatus and method for providing broadcast parameter message in a mobile communication system 有权
标题翻译：一种用于在移动通信系统中提供广播参数消息的装置和方法
公开(公告)号：US20060176871A1
公开(公告)日：2006-08-10
申请号：US11346186
申请日：2006-02-03
申请人： Jong-Hun Rhee , Min-Goo Kim , Jong-Han Lim , Hi-Chan Moon , Yong-Sun Hwang , Jae-Hyun Park
发明人： Jong-Hun Rhee , Min-Goo Kim , Jong-Han Lim , Hi-Chan Moon , Yong-Sun Hwang , Jae-Hyun Park
IPC分类号： H04B7/216
CPC分类号： H04L12/1877 , H04L1/0057 , H04L1/0071 , H04L1/0078 , H04L12/189 , H04W72/005
摘要： A method and apparatus provide a broadcast parameter message in a mobile communication system providing a broadcast service. If the provided broadcast service is time domain multiplex (TDM)-multiplexed, a message generator generates the broadcast parameter message by setting a field indicating the TDM multiplexing, setting a field indicating a position of the broadcast service in each sub-buffer, setting a field indicating whether one sub-buffer includes one service and a field indicating validity of the field, and setting a field exclusively indicating actual broadcast service data stored in one sub-buffer. A transmitter modulates the broadcast parameter message and provides the modulated broadcast parameter message to a terminal that receives the broadcast service.
摘要翻译：一种方法和装置在提供广播服务的移动通信系统中提供广播参数消息。如果提供的广播服务是多路复用（TDM）的，则消息发生器通过设置表示TDM复用的字段来生成广播参数消息，设置表示广播服务在每个子缓冲器中的位置的字段，设置指示一个子缓冲器是否包括一个服务和指示该字段的有效性的字段，以及专门指定存储在一个子缓冲器中的实际广播服务数据的字段。发射机调制广播参数消息，并向接收广播业务的终端提供经调制的广播参数消息。

7. 发明授权

US07801103B2 Apparatus and method for providing broadcast parameter message in a mobile communication system 有权
标题翻译：一种用于在移动通信系统中提供广播参数消息的装置和方法
公开(公告)号：US07801103B2
公开(公告)日：2010-09-21
申请号：US11346186
申请日：2006-02-03
申请人： Jong-Hun Rhee , Min-Goo Kim , Jong-Han Lim , Hi-Chan Moon , Yong-Sun Hwang , Jae-Hyun Park
发明人： Jong-Hun Rhee , Min-Goo Kim , Jong-Han Lim , Hi-Chan Moon , Yong-Sun Hwang , Jae-Hyun Park
IPC分类号： H04J3/00
CPC分类号： H04L12/1877 , H04L1/0057 , H04L1/0071 , H04L1/0078 , H04L12/189 , H04W72/005
摘要： A method and apparatus provide a broadcast parameter message in a mobile communication system providing a broadcast service. If the provided broadcast service is time domain multiplex (TDM)-multiplexed, a message generator generates the broadcast parameter message by setting a field indicating the TDM multiplexing, setting a field indicating a position of the broadcast service in each sub-buffer, setting a field indicating whether one sub-buffer includes one service and a field indicating validity of the field, and setting a field exclusively indicating actual broadcast service data stored in one sub-buffer. A transmitter modulates the broadcast parameter message and provides the modulated broadcast parameter message to a terminal that receives the broadcast service.
摘要翻译：一种方法和装置在提供广播服务的移动通信系统中提供广播参数消息。如果提供的广播服务是多路复用（TDM）的，则消息发生器通过设置表示TDM复用的字段来生成广播参数消息，设置表示广播服务在每个子缓冲器中的位置的字段，设置指示一个子缓冲器是否包括一个服务和指示该字段的有效性的字段，以及专门指定存储在一个子缓冲器中的实际广播服务数据的字段。发射机调制广播参数消息，并向接收广播业务的终端提供经调制的广播参数消息。

8. 发明授权

US07907682B2 Apparatus and method for initial fractional frequency offset estimation in a broadband wireless access communication system 有权
$Apparatus and method for initial fractional frequency offset estimation in a broadband wireless access communication system$
标题翻译：宽带无线接入通信系统中初始分数频偏估计的装置和方法
公开(公告)号：US07907682B2
公开(公告)日：2011-03-15
申请号：US12030370
申请日：2008-02-13
申请人： In-Chun Lim , Yong-Sun Hwang , Bong-Gee Song
发明人： In-Chun Lim , Yong-Sun Hwang , Bong-Gee Song
IPC分类号： H04L27/00
CPC分类号： H04L27/2676 , H04L27/266
摘要： An apparatus and method for initial fractional frequency offset estimation are provided. In an apparatus for estimating an initial fractional frequency offset in a Broadband Wireless Access (BWA) communication system, the apparatus includes a sample power calculator for calculating a power of input sample data and for calculating an average power of a specific symbol, a power threshold comparator for comparing the sample data power in magnitude with the average power of the specific symbol and for outputting one of an accumulation ON and OFF signal, a first buffer for correlating a last data of the sample data with the sample data and for storing sample data corresponding to a preset number of correlation results, a second buffer for storing sample data corresponding to correlation results other than the sample data stored in the first buffer; and an accumulator for allowing accumulation of sample data stored in the second buffer if the power threshold comparator outputs the accumulation ON signal.
摘要翻译：提供了一种用于初始分数频偏估计的装置和方法。在用于估计宽带无线接入（BWA）通信系统中的初始分数频率偏移的装置中，该装置包括用于计算输入采样数据的功率并用于计算特定符号的平均功率的采样功率计算器，功率阈值比较器，用于将幅度上的采样数据功率与特定符号的平均功率进行比较，并输出累加ON和OFF信号中的一个;第一缓冲器，用于将采样数据的最后数据与采样数据相关联并用于存储采样数据对应于预设数量的相关结果;第二缓冲器，用于存储对应于除了存储在第一缓冲器中的采样数据之外的相关结果的采样数据; 以及累加器，用于如果功率阈值比较器输出累加ON信号，则允许累积存储在第二缓冲器中的采样数据。

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