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1. 发明授权

US07647073B2 Apparatus and method for channel estimation in an SDMA-OFDM system 有权
标题翻译：在SDMA-OFDM系统中信道估计的装置和方法
公开(公告)号：US07647073B2
公开(公告)日：2010-01-12
申请号：US11368532
申请日：2006-03-07
申请人： Sang-Hoon Sung , Jee-Hyun Kim , Eun-Sun Choi
发明人： Sang-Hoon Sung , Jee-Hyun Kim , Eun-Sun Choi
IPC分类号： H04M1/00
CPC分类号： H04L25/0226 , H04L1/0009 , H04L27/2601
摘要： Provided is a channel estimation apparatus and method in a broadband wireless communications system using a smart antenna are provided. In the channel estimation apparatus, an FFT processor converts a received time-domain signal into a frequency-domain signal by FFT-processing the received time-domain signal. A channel acquirer estimates a first channel information for an SDMA user using a preamble signal allocated to the SDMA user in the frequency-domain signal. A channel tracker estimates a second channel information for the SDMA user using pilots in a data area allocated to the SDMA user in the frequency-domain signal. A channel estimator estimates a final channel information by weighting the first channel information and the second channel information according to a channel change rate.
摘要翻译：提供了一种使用智能天线的宽带无线通信系统中的信道估计装置和方法。在信道估计装置中，FFT处理器通过对所接收的时域信号进行FFT处理，将接收到的时域信号转换为频域信号。信道获取器使用在频域信号中分配给SDMA用户的前导信号来估计SDMA用户的第一信道信息。信道跟踪器使用在频域信号中分配给SDMA用户的数据区域中的导频来估计SDMA用户的第二信道信息。信道估计器通过根据信道变化率对第一信道信息和第二信道信息进行加权来估计最终信道信息。

2. 发明申请

US20060205437A1 Apparatus and method for channel estimation in an SDMA-OFDM system 有权
标题翻译：在SDMA-OFDM系统中信道估计的装置和方法
公开(公告)号：US20060205437A1
公开(公告)日：2006-09-14
申请号：US11368532
申请日：2006-03-07
申请人： Sang-Hoon Sung , Jee-Hyun Kim , Eun-Sun Choi
发明人： Sang-Hoon Sung , Jee-Hyun Kim , Eun-Sun Choi
IPC分类号： H04M1/00
CPC分类号： H04L25/0226 , H04L1/0009 , H04L27/2601
摘要： Provided is a channel estimation apparatus and method in a broadband wireless communications system using a smart antenna are provided. In the channel estimation apparatus, an FFT processor converts a received time-domain signal into a frequency-domain signal by FFT-processing the received time-domain signal. A channel acquirer estimates a first channel information for an SDMA user using a preamble signal allocated to the SDMA user in the frequency-domain signal. A channel tracker estimates a second channel information for the SDMA user using pilots in a data area allocated to the SDMA user in the frequency-domain signal. A channel estimator estimates a final channel information by weighting the first channel information and the second channel information according to a channel change rate.
摘要翻译：提供了一种使用智能天线的宽带无线通信系统中的信道估计装置和方法。在信道估计装置中，FFT处理器通过对所接收的时域信号进行FFT处理，将接收到的时域信号转换为频域信号。信道获取器使用在频域信号中分配给SDMA用户的前导信号来估计SDMA用户的第一信道信息。信道跟踪器使用在频域信号中分配给SDMA用户的数据区域中的导频来估计SDMA用户的第二信道信息。信道估计器通过根据信道变化率对第一信道信息和第二信道信息进行加权来估计最终信道信息。

3. 发明申请

US20050099939A1 Apparatus and method for transmitting/receiving pilot signals in an OFDM communication system 审中-公开
标题翻译：在OFDM通信系统中发送/接收导频信号的装置和方法
公开(公告)号：US20050099939A1
公开(公告)日：2005-05-12
申请号：US10919037
申请日：2004-08-16
申请人： Hoon Huh , Soon-Young Yoon , Jae-Hee Cho , Sang-Hoon Sung , Jee-Hyun Kim , In-Seok Hwang
发明人： Hoon Huh , Soon-Young Yoon , Jae-Hee Cho , Sang-Hoon Sung , Jee-Hyun Kim , In-Seok Hwang
IPC分类号： H04J11/00 , H04L27/26
CPC分类号： H04L27/2626 , H04L27/2613 , H04L27/2655 , H04L27/2657
摘要： A radio communication system divides an entire frequency band into a plurality of subcarrier bands, forms a symbol from signals on the subcarrier bands, forms a frame from a plurality of symbols, transmits a pilot signal within symbols in a predetermined position of the frame, and transmits a data signal within symbols other than the symbols for transmitting the pilot signal. A transmitter generates the pilot signal, performs an inverse fast Fourier transform (IFFT) on the pilot signal by applying an IFFT size which is less than an IFFT size applied to the data signal, and transmits the IFFT-processed reference signal to a receiver.
摘要翻译：无线电通信系统将整个频带划分为多个子载波频带，从子载波频带上的信号形成符号，从多个符号形成帧，在帧的预定位置的符号内发送导频信号，以及在除了用于发送导频信号的符号之外的符号内发送数据信号。发射机产生导频信号，通过应用小于应用于数据信号的IFFT大小的IFFT大小对导频信号执行快速傅里叶逆变换（IFFT），并将IFFT处理的参考信号发送给接收机。

4. 发明授权

US07567639B2 Method and apparatus for generating preamble sequence for adaptive antenna system in orthogonal frequency division multiple access communication system 有权
标题翻译：用于在正交频分多址通信系统中生成用于自适应天线系统的前导码序列的方法和装置
公开(公告)号：US07567639B2
公开(公告)日：2009-07-28
申请号：US11116904
申请日：2005-04-28
申请人： Hoon Huh , Jang-Hoon Yang , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng , Jae-Hee Cho , In-Seok Hwang , Jee-Hyun Kim , Kwan-Hee Roh
发明人： Hoon Huh , Jang-Hoon Yang , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng , Jae-Hee Cho , In-Seok Hwang , Jee-Hyun Kim , Kwan-Hee Roh
IPC分类号： H04L7/00
CPC分类号： H04L25/022 , H04L25/0226 , H04L27/2613
摘要： Disclosed is a method and an apparatus for generating a preamble sequence for an adaptive antenna system supporting a space division multiple access in an OFDMA communication system. Particularly, disclosed is a method for forming a preamble sequence identifying each of a plurality of mobile subscriber stations located within a cell or a sector of a communication system which includes a plurality of sub-channels assigned to the mobile subscriber stations, each of the sub-channels including a plurality of bins each of which includes n number of contiguous subcarriers in a frequency domain, the preamble sequence being transmitted before each of the sub-channels is transmitted, the method including the step of generating a preamble sequence by phase-shifting a predetermined sequence according to a predetermined phase shift sequence in the frequency domain.
摘要翻译：公开了一种用于在OFDMA通信系统中生成支持空分多址的自适应天线系统的前同步码序列的方法和装置。特别地，公开了一种用于形成标识位于通信系统的小区或扇区内的多个移动用户站中的每一个的前导序列的方法，该通信系统包括分配给移动用户站的多个子信道，每个子 - 信道，包括多个信道，每个信道包括频域中的n个连续子载波，所述前导序列在每个子信道被发送之前被发送，所述方法包括以下步骤：通过相移产生前同步码序列根据频域中的预定相移序列的预定序列。

5. 发明授权

US07613244B2 System for communicating channel quality information 有权
标题翻译：用于传达信道质量信息的系统
公开(公告)号：US07613244B2
公开(公告)日：2009-11-03
申请号：US11273263
申请日：2005-11-15
申请人： In-Seok Hwang , Jang-Hoon Yang , Jeong-Heon Kim , Jee-Hyun Kim
发明人： In-Seok Hwang , Jang-Hoon Yang , Jeong-Heon Kim , Jee-Hyun Kim
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04W99/00 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04W24/00
摘要： In transmitting channel quality information (CQI) by a mobile station (MS) in a communication system, the mobile station receives from a base station (BS) information of an allocation of a CQI channel and information as to a modulation to be performed on the CQI. CQI channel signal is generated based on the CQI and the modulation information, where the CQI corresponds to a measured channel state. The CQI channel signal is transmitted to the BS over the allocated CQI channel.
摘要翻译：在通信系统中由移动台（MS）发送信道质量信息（CQI）的过程中，移动台从基站（BS）接收CQI信道的分配信息和关于在 CQI。基于CQI和调制信息生成CQI信道信号，其中CQI对应于测量的信道状态。 CQI信道信号通过所分配的CQI信道发送给BS。

6. 发明申请

US20060120470A1 System for communicating channel quality information 有权
公开(公告)号：US20060120470A1
公开(公告)日：2006-06-08
申请号：US11273263
申请日：2005-11-15
申请人： In-Seok Hwang , Jang-Hoon Yang , Jeong-Heon Kim , Jee-Hyun Kim
发明人： In-Seok Hwang , Jang-Hoon Yang , Jeong-Heon Kim , Jee-Hyun Kim
IPC分类号： H04K1/10
CPC分类号： H04W99/00 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04W24/00
摘要： In transmitting channel quality information (CQI) by a mobile station (MS) in a communication system, the mobile station receives from a base station (BS) information of an allocation of a CQI channel and information as to a modulation to be performed on the CQI. CQI channel signal is generated based on the CQI and the modulation information, where the CQI corresponds to a measured channel state. The CQI channel signal is transmitted to the BS over the allocated CQI channel.

7. 发明申请

US20050201295A1 Method and apparatus for transmitting/receiving channel quality information in a communication system using an orthogonal frequency division multiplexing scheme 有权
标题翻译：在使用正交频分复用方案的通信系统中发送/接收信道质量信息的方法和装置
公开(公告)号：US20050201295A1
公开(公告)日：2005-09-15
申请号：US11077857
申请日：2005-03-11
申请人： Jee-Hyun Kim , Jeong-Tae Oh , Hoon Huh , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng
发明人： Jee-Hyun Kim , Jeong-Tae Oh , Hoon Huh , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng
IPC分类号： H04B7/26 , H04L1/00 , H04L5/02 , H04L27/26 , H04J3/14 , H04J1/16 , H04J11/00 , H04L12/26
CPC分类号： H04L5/0053 , H04L1/0026 , H04L5/0007 , H04L5/0039 , H04L5/0041 , H04L5/0044 , H04L5/006 , H04L5/0082 , H04L5/0096
摘要： A method for transmitting channel quality information (CQI) from a receiver station to a transmitter station in a wireless communication system which includes diversity mode consisted of spaced apart subcarriers and band AMC mode consisted of a number of bands comprised of a predetermined number of adjacent subcarriers. The method comprises the steps of transmitting an average CINR(Carrier to Interference and Noise Ratio) value for a full frequency band if the receiver station operates in the diversity mode; transmitting a differential CINR of a predetermined number of bins if the receiver station operates in the band AMC mode.
摘要翻译：一种用于在包括由间隔开的子载波和频带AMC模式组成的分集模式的无线通信系统中从接收站发送信道质量信息（CQI）的方法，其包括由预定数量的相邻子载波组成的多个频带。该方法包括以下步骤：如果接收机在分集模式下工作，则传输全频段的平均CINR（载波干扰和噪声比）值; 如果接收机工作在频带AMC模式中，则发送预定数量的分组的差分CINR。

8. 发明授权

US08854995B2 Method and apparatus for transmitting/receiving channel quality information in a communication system using an orthogonal frequency division multiplexing scheme 有权
标题翻译：在使用正交频分复用方案的通信系统中发送/接收信道质量信息的方法和装置
公开(公告)号：US08854995B2
公开(公告)日：2014-10-07
申请号：US13043073
申请日：2011-03-08
申请人： Jee-Hyun Kim , Jeong-Tae Oh , Hoon Huh , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng
发明人： Jee-Hyun Kim , Jeong-Tae Oh , Hoon Huh , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng
IPC分类号： H04L12/26 , H04L5/00 , H04L1/00
CPC分类号： H04L5/0053 , H04L1/0026 , H04L5/0007 , H04L5/0039 , H04L5/0041 , H04L5/0044 , H04L5/006 , H04L5/0082 , H04L5/0096
摘要： A method and Mobile Subscriber Station (MSS) are provided for transmitting Channel Quality Information (CQI) in a wireless communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme. A Carrier to Interference and Noise Ratio (CINR) of at least two bands are measured; each of the at least two bands including a plurality of adjacent subcarriers for a band Adaptive Modulation and Coding (AMC) operation. A Report Response (REP-RSP) message including first information related to the measured CINR is sent. Second information related to a differential CINR of the at least two bands is sent via a Channel Quality Information Channel (CQICH).
摘要翻译：提供一种方法和移动用户站（MSS），用于在使用正交频分多址（OFDMA）方案的无线通信系统中传送信道质量信息（CQI）。测量至少两个波段的载波干扰和噪声比（CINR）; 所述至少两个频带中的每一个包括用于频带自适应调制和编码（AMC）操作的多个相邻子载波。发送包括与测量的CINR相关的第一信息的报告响应（REP-RSP）消息。通过信道质量信息信道（CQICH）发送与至少两个频带的差分CINR相关的第二信息。

9. 发明授权

US07933195B2 Method and apparatus for transmitting/receiving channel quality information in a communication system using an orthogonal frequency division multiplexing scheme 有权
标题翻译：在使用正交频分复用方案的通信系统中发送/接收信道质量信息的方法和装置
公开(公告)号：US07933195B2
公开(公告)日：2011-04-26
申请号：US11077857
申请日：2005-03-11
申请人： Jee-Hyun Kim , Jeong-Tae Oh , Hoon Huh , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng
发明人： Jee-Hyun Kim , Jeong-Tae Oh , Hoon Huh , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng
IPC分类号： H04J11/00
CPC分类号： H04L5/0053 , H04L1/0026 , H04L5/0007 , H04L5/0039 , H04L5/0041 , H04L5/0044 , H04L5/006 , H04L5/0082 , H04L5/0096
摘要： A method for transmitting channel quality information (CQI) from a receiver station to a transmitter station in a wireless communication system which includes diversity mode consisted of spaced apart subcarriers and band AMC mode consisted of a number of bands comprised of a predetermined number of adjacent subcarriers. The method comprises the steps of transmitting an average CINR(Carrier to Interference and Noise Ratio) value for a full frequency band if the receiver station operates in the diversity mode; transmitting a differential CINR of a predetermined number of bins if the receiver station operates in the band AMC mode.
摘要翻译：一种用于在包括由间隔开的子载波和频带AMC模式组成的分集模式的无线通信系统中从接收站发送信道质量信息（CQI）的方法，其包括由预定数量的相邻子载波组成的多个频带。该方法包括以下步骤：如果接收机在分集模式下工作，则传输全频段的平均CINR（载波干扰和噪声比）值; 如果接收机工作在频带AMC模式中，则发送预定数量的分组的差分CINR。

10. 发明申请

US20050243940A1 Method and apparatus for generating preamble sequence for adaptive antenna system in orthogonal frequency division multiple access communication system 有权
标题翻译：用于在正交频分多址通信系统中生成用于自适应天线系统的前导码序列的方法和装置
公开(公告)号：US20050243940A1
公开(公告)日：2005-11-03
申请号：US11116904
申请日：2005-04-28
申请人： Hoon Huh , Jang-Hoon Yang , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng , Jae-Hee Cho , In-Seok Hwang , Jee-Hyun Kim , Kwan-Hee Roh
发明人： Hoon Huh , Jang-Hoon Yang , Jae-Ho Jeon , Soon-Young Yoon , Seung-Joo Maeng , Jae-Hee Cho , In-Seok Hwang , Jee-Hyun Kim , Kwan-Hee Roh
IPC分类号： H04J11/00 , H04K1/10 , H04L25/02 , H04L27/26
CPC分类号： H04L25/022 , H04L25/0226 , H04L27/2613
摘要： Disclosed is a method and an apparatus for generating a preamble sequence for an adaptive antenna system supporting a space division multiple access in an OFDMA communication system. Particularly, disclosed is a method for forming a preamble sequence identifying each of a plurality of mobile subscriber stations located within a cell or a sector of a communication system which includes a plurality of sub-channels assigned to the mobile subscriber stations, each of the sub-channels including a plurality of bins each of which includes n number of contiguous subcarriers in a frequency domain, the preamble sequence being transmitted before each of the sub-channels is transmitted, the method including the step of generating a preamble sequence by phase-shifting a predetermined sequence according to a predetermined phase shift sequence in the frequency domain.
摘要翻译：公开了一种用于在OFDMA通信系统中生成支持空分多址的自适应天线系统的前同步码序列的方法和装置。特别地，公开了一种用于形成标识位于通信系统的小区或扇区内的多个移动用户站中的每一个的前导序列的方法，该通信系统包括分配给移动用户站的多个子信道，每个子 - 信道，包括多个信道，每个信道包括频域中的n个连续子载波，所述前导序列在每个子信道被发送之前被发送，所述方法包括以下步骤：通过相移产生前同步码序列根据频域中的预定相移序列的预定序列。

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