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1.发明申请Apparatus and method for selective power control for an OFDM mobile communication system 有权一种用于OFDM移动通信系统的选择性功率控制的装置和方法公开(公告)号：US20050105589A1
公开(公告)日：2005-05-19
申请号：US10993274
申请日：2004-11-19
CPC分类号： H04W52/24 , H04L5/023 , H04L27/2608
摘要： Disclosed is a method for controlling downlink power transmitted from a base station to subscriber stations in a mobile communication system employing an Orthogonal Frequency Division Multiple Access (OFDMA) scheme, in which data is carried from the base station to the subscriber stations by subchannels to each of which a plurality of subcarriers are assigned. The method includes the steps of receiving from the subscriber stations channel condition information of each of the subchannels together with information related to a subcarrier having a channel condition below a threshold from among at least one subcarrier included in each of the subchannels; calculating transmission power for each of the subchannels based on the received information; and transmitting each of the subchannels with the calculated transmission power, excluding the subcarrier having a channel condition below the threshold.
摘要翻译： 公开了一种在使用正交频分多址（OFDMA）方式的移动通信系统中控制从基站向用户台发送的下行链路功率的方法，其中通过子信道从基站向用户台向每个 其中分配了多个子载波。 该方法包括以下步骤：从包括在每个子信道中的至少一个子载波中，从用户台接收每个子信道的信道条件信息以及与具有低于阈值的信道条件的子载波相关的信息; 基于所接收的信息计算每个子信道的传输功率; 以及除了具有低于阈值的信道条件的子载波之外，以计算的发送功率发送每个子信道。
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2.发明授权Apparatus and method for selective power control for an OFDM mobile communication system 有权一种用于OFDM移动通信系统的选择性功率控制的装置和方法公开(公告)号：US07711386B2
公开(公告)日：2010-05-04
申请号：US10993274
申请日：2004-11-19
IPC分类号： H04B7/00
CPC分类号： H04W52/24 , H04L5/023 , H04L27/2608
摘要： Disclosed is a method for controlling downlink power transmitted from a base station to subscriber stations in a mobile communication system employing an Orthogonal Frequency Division Multiple Access (OFDMA) scheme, in which data is carried from the base station to the subscriber stations by subchannels to each of which a plurality of subcarriers are assigned. The method includes the steps of receiving from the subscriber stations channel condition information of each of the subchannels together with information related to a subcarrier having a channel condition below a threshold from among at least one subcarrier included in each of the subchannels; calculating transmission power for each of the subchannels based on the received information; and transmitting each of the subchannels with the calculated transmission power, excluding the subcarrier having a channel condition below the threshold.
摘要翻译： 公开了一种在使用正交频分多址（OFDMA）方式的移动通信系统中控制从基站向用户台发送的下行链路功率的方法，其中通过子信道将数据从基站传送到用户站 其中分配了多个子载波。 该方法包括以下步骤：从包括在每个子信道中的至少一个子载波中，从用户台接收每个子信道的信道条件信息以及与具有低于阈值的信道条件的子载波相关的信息; 基于所接收的信息计算每个子信道的传输功率; 以及除了具有低于阈值的信道条件的子载波之外，以计算的发送功率发送每个子信道。
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3.发明申请APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING CHANNEL QUALITY INFORMATION IN A COMMUNICATION SYSTEM 有权在通信系统中发送/接收信道质量信息的装置和方法公开(公告)号：US20090303900A1
公开(公告)日：2009-12-10
申请号：US12543861
申请日：2009-08-19
申请人： Jae-Hee CHO , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
发明人： Jae-Hee CHO , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
CPC分类号： H04W24/10 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04W16/02
摘要： An apparatus and method for transmitting and receiving Channel Quality Information (CQI) in a communication system. A Base Station (BS) transmits, to a Subscriber Station (SS), a request for CQI of a resource region corresponding to a frequency reuse factor K, which is designated by the BS. The BS then receives, from the SS, the CQI of the resource region corresponding to a channel quality measured by the SS. The channel quality is measured by the SS by measuring a boosted reference signal and compensating the boosted reference signal for a non-boosted signal.
摘要翻译： 一种用于在通信系统中发送和接收信道质量信息（CQI）的装置和方法。 基站（BS）向订户站（SS）发送与由BS指定的频率重用因子K对应的资源区域的CQI请求。 然后，BS从SS接收对应于由SS测量的信道质量的资源区域的CQI。 信道质量由SS通过测量升压的参考信号并补偿非升压信号的升压参考信号来测量。
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公开(公告)号：US20060148411A1
公开(公告)日：2006-07-06
申请号：US11326160
申请日：2006-01-05
申请人： Jae-Hee Cho , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
发明人： Jae-Hee Cho , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
CPC分类号： H04W24/10 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04W16/02
摘要： An apparatus and method for transmitting/receiving channel quality information (CQI) in a communication system having a frame including subchannels corresponding to the same frequency reuse factor or different frequency reuse factors. A base station (BS) allocates at least one of the subchannels in the frame to a subscriber station (SS), and sends a transmission request for a CQI for a subchannel desired to be received, to the SS. The SS measures channel quality for individual subchannels requested by the BS in response to the CQI request, and transmits the measured channel quality to the BS.
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5.发明授权Apparatus and method for transmitting/receiving channel quality information in a communication system 有权用于在通信系统中发送/接收信道质量信息的装置和方法公开(公告)号：US08090012B2
公开(公告)日：2012-01-03
申请号：US12543861
申请日：2009-08-19
申请人： Jae-Hee Cho , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
发明人： Jae-Hee Cho , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
IPC分类号： H04B3/46
CPC分类号： H04W24/10 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04W16/02
摘要： An apparatus and method for transmitting and receiving Channel Quality Information (CQI) in a communication system. A Base Station (BS) transmits, to a Subscriber Station (SS), a request for CQI of a resource region corresponding to a frequency reuse factor K, which is designated by the BS. The BS then receives, from the SS, the CQI of the resource region corresponding to a channel quality measured by the SS. The channel quality is measured by the SS by measuring a boosted reference signal and compensating the boosted reference signal for a non-boosted signal.
摘要翻译： 一种用于在通信系统中发送和接收信道质量信息（CQI）的装置和方法。 基站（BS）向订户站（SS）发送与由BS指定的频率重用因子K对应的资源区域的CQI请求。 然后，BS从SS接收对应于由SS测量的信道质量的资源区域的CQI。 信道质量由SS通过测量升压的参考信号并补偿非升压信号的升压参考信号来测量。
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6.发明授权Apparatus and method for transmitting/receiving channel quality information in a communication system 有权用于在通信系统中发送/接收信道质量信息的装置和方法公开(公告)号：US07602843B2
公开(公告)日：2009-10-13
申请号：US11326160
申请日：2006-01-05
申请人： Jae-Hee Cho , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
发明人： Jae-Hee Cho , Soon-Young Yoon , Jae-Hwan Chang , Ji-Ho Jang , Pan-Yuh Joo , Jang-Hoon Yang , Joong-Ho Jeong , Kwan-Hee Roh , Sang-Hoon Sung
IPC分类号： H04B3/46
CPC分类号： H04W24/10 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0027 , H04L1/0028 , H04W16/02
摘要： An apparatus and method for transmitting/receiving channel quality information (CQI) in a communication system having a frame including subchannels corresponding to the same frequency reuse factor or different frequency reuse factors. A base station (BS) allocates at least one of the subchannels in the frame to a subscriber station (SS), and sends a transmission request for a CQI for a subchannel desired to be received, to the SS. The SS measures channel quality for individual subchannels requested by the BS in response to the CQI request, and transmits the measured channel quality to the BS.
摘要翻译： 一种用于在具有包括对应于相同频率复用因子或不同频率重用因子的子信道的帧的通信系统中发送/接收信道质量信息（CQI）的装置和方法。 基站（BS）将帧中的子信道中的至少一个分配给订户站（SS），并且将针对期望接收的子信道的CQI的发送请求发送到SS。 SS测量由BS请求的各个子信道的信道质量，并且将所测量的信道质量发送给BS。
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7.发明授权Apparatus and method for estimating interference and noise in a communication system 有权用于估计通信系统中的干扰和噪声的装置和方法公开(公告)号：US07623569B2
公开(公告)日：2009-11-24
申请号：US10958485
申请日：2004-10-05
申请人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung , Chan-Young Kim
发明人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung , Chan-Young Kim
IPC分类号： H04B3/46
CPC分类号： H04L1/206 , H04B1/1027 , H04B17/345 , H04L27/2647
摘要： A method and apparatus for estimating interference and noise power in an orthogonal frequency division multiplexing/orthogonal frequency division multiple access/discrete multi-tone (OFDM/OFDMA/DMT) system is disclosed. A correlator correlates a plurality of sub-carriers with a preset reference sequence on an element-by-element basis and outputs a result of the correlation. A signal noise producer calculates a difference between a correlation value associated with each of the plurality of sub-carriers output from the correlator and a correlation value produced from at least one adjacent sub-carrier and outputs a result of the calculation. An interference and noise power producer produce interference and noise power from the difference between the correlation values calculated by the signal noise producer.
摘要翻译： 公开了一种在正交频分复用/正交频分多址/离散多音（OFDM / OFDMA / DMT）系统中估计干扰和噪声功率的方法和装置。 相关器在逐个元素的基础上将多个子载波与预设的参考序列进行相关，并输出相关的结果。 信号噪声生成器计算与从相关器输出的多个子载波中的每一个相关联的相关值与从至少一个相邻子载波产生的相关值之间的差，并输出计算结果。 干扰和噪声功率发生器根据由信号噪声产生器计算的相关值之间的差产生干扰和噪声功率。
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8.发明申请Apparatus and method for estimating interference and noise in a communication system 有权用于估计通信系统中的干扰和噪声的装置和方法公开(公告)号：US20050152480A1
公开(公告)日：2005-07-14
申请号：US10958485
申请日：2004-10-05
申请人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung , Chan-Young Kim
发明人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung , Chan-Young Kim
CPC分类号： H04L1/206 , H04B1/1027 , H04B17/345 , H04L27/2647
摘要： A method and apparatus for estimating interference and noise power in an orthogonal frequency division multiplexing/orthogonal frequency division multiple access/discrete multi-tone (OFDM/OFDMA/DMT) system is disclosed. A correlator correlates a plurality of sub-carriers with a preset reference sequence on an element-by-element basis and outputs a result of the correlation. A signal noise producer calculates a difference between a correlation value associated with each of the plurality of sub-carriers output from the correlator and a correlation value produced from at least one adjacent sub-carrier and outputs a result of the calculation. An interference and noise power producer produce interference and noise power from the difference between the correlation values calculated by the signal noise producer.
摘要翻译： 公开了一种在正交频分复用/正交频分多址/离散多音（OFDM / OFDMA / DMT）系统中估计干扰和噪声功率的方法和装置。 相关器在逐个元素的基础上将多个子载波与预设的参考序列进行相关，并输出相关的结果。 信号噪声生成器计算与从相关器输出的多个子载波中的每一个相关联的相关值与从至少一个相邻子载波产生的相关值之间的差，并输出计算结果。 干扰和噪声功率发生器根据由信号噪声产生器计算的相关值之间的差产生干扰和噪声功率。
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公开(公告)号：US20060008037A1
公开(公告)日：2006-01-12
申请号：US11172539
申请日：2005-06-30
申请人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung
发明人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung
CPC分类号： H04L1/20 , H04L25/022 , H04L25/03159 , H04L27/2647 , H04L2025/03414
摘要： In an apparatus for estimating a Carrier-to-Interference-and-Noise Ratio (CINR) in a communication system, received signals are blocked based on sub-carriers with similar channel characteristics. Interference and noise levels and true received signal levels are computed on a block-by-block basis from the blocked received signals. CINRs are estimated on a block-by-block basis using ratios between the computed interference and noise levels and the computed true received signal levels. The apparatus can estimate a CINR for all channels even when the channel characteristics of the sub-carriers of the received signals are not similar to each other.
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10.发明授权Apparatus and method for estimating a carrier-to-interference-and-noise ratio in a communication system 有权用于估计通信系统中的载波与干扰噪声比的装置和方法公开(公告)号：US07606299B2
公开(公告)日：2009-10-20
申请号：US11172539
申请日：2005-06-30
申请人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung
发明人： Jae-Hwan Chang , Yun-Sang Park , Sang-Hoon Sung
CPC分类号： H04L1/20 , H04L25/022 , H04L25/03159 , H04L27/2647 , H04L2025/03414
摘要： In an apparatus for estimating a Carrier-to-Interference-and-Noise Ratio (CINR) in a communication system, received signals are blocked based on sub-carriers with similar channel characteristics. Interference and noise levels and true received signal levels are computed on a block-by-block basis from the blocked received signals. CINRs are estimated on a block-by-block basis using ratios between the computed interference and noise levels and the computed true received signal levels. The apparatus can estimate a CINR for all channels even when the channel characteristics of the sub-carriers of the received signals are not similar to each other.
摘要翻译： 在用于估计通信系统中的载波与干扰和噪声比（CINR）的装置中，基于具有相似信道特性的子载波来阻止接收信号。 干扰和噪声电平以及真实的接收信号电平是基于阻塞的接收信号逐块计算的。 使用计算的干扰和噪声电平之间的比率以及计算的真实接收信号电平，逐块地估计CINR。 即使接收信号的子载波的信道特性彼此不相似，该装置也可以估计所有信道的CINR。
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