公开(公告)号：US08081697B2

公开(公告)日：2011-12-20

申请号：US11746459

申请日：2007-05-09

申请人： Soong-Yoon Choi ,  Kyung-Joo Suh ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-In Kim ,  Yong-Seok Kim ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

发明人： Soong-Yoon Choi ,  Kyung-Joo Suh ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Jong-In Kim ,  Yong-Seok Kim ,  Hyun-Cheol Park ,  Hyoun-Kuk Kim

IPC分类号： H04L1/02

CPC分类号： H04B7/0851 ,  H04L1/0656 ,  H04L5/0046 ,  H04L5/0053 ,  H04L5/1453

摘要： An apparatus and method for lowering a tree searching complexity in a Spatial Multiplexing (SM) Multiple Input Multiple Output (MIMO) antenna system are provided. A transmitting apparatus includes a generator for generating a plurality of transmit streams by spatial-multiplexing a transmit data, a determiner for determining modulation schemes to be applied to the plurality of the transmit streams respectively and a modulator for modulating the plurality of the transmit streams using at least two modulation schemes under control of the determiner. The receiver detects the signals by allocating the modulation scheme of the lowest order to the upper tree level.

摘要翻译： 提供了一种用于降低空间复用（MIMO）多输入多输出（MIMO）天线系统中的树搜索复杂度的装置和方法。 发送装置包括：发生器，用于通过空间复用发送数据来产生多个发送流;确定器，用于确定分别应用于多个发送流的调制方案;以及调制器，用于使用 在确定器的控制下的至少两个调制方案。 接收机通过将最低阶的调制方案分配给上层树来检测信号。

公开(公告)号：US20070099665A1

公开(公告)日：2007-05-03

申请号：US11545240

申请日：2006-10-10

申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

IPC分类号： H04B1/38

CPC分类号： H04B1/1027

摘要： An apparatus and method for improving the reception performance of a Mobile Station (MS) in a multiple antenna system are provided. In an apparatus of a Base Station (BS) in the multiple antenna system, upon receipt of a request for interference cancellation for a first MS serviced by a neighbor BS, a channel estimator estimates a channel from the first MS and a channel from a second MS serviced by the BS. A beam coefficient generator generates a first beam coefficient based on channel estimates of the first and second MSs and a second beam coefficient based on the channel estimate of the second MS. An interference cancellation decider determines whether to perform interference cancellation for the first MS using the first and second beam coefficients.

摘要翻译： 提供了一种用于提高多天线系统中的移动站（MS）的接收性能的装置和方法。 在多天线系统中的基站（BS）的装置中，当接收到由相邻BS服务的第一MS的干扰消除请求时，信道估计器估计来自第一MS的信道和来自第二MS的信道 MS由BS服务。 波束系数发生器基于第一和第二MS的信道估计生成第一波束系数，并且基于第二MS的信道估计产生第二波束系数。 干扰消除决定器使用第一和第二波束系数来确定是否对第一MS进行干扰消除。

公开(公告)号：US20070191062A1

公开(公告)日：2007-08-16

申请号：US11649734

申请日：2007-01-04

申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sung-Soo Hwang

发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sung-Soo Hwang

IPC分类号： H04B1/38

CPC分类号： H04B1/38 ,  H04B7/10

摘要： An apparatus and method for transmitting and receiving signals in a wireless communication system with at least two antenna are provided, in which a first antenna transmits a transmission signal, a second antenna receives a reception signal, a transmitter sends the transmission signal through the first antenna and a receiver receives the reception signal through the second antenna.

摘要翻译： 提供了一种用于在具有至少两个天线的无线通信系统中发送和接收信号的装置和方法，其中第一天线发送发送信号，第二天线接收接收信号，发送器通过第一天线发送发送信号 接收机通过第二天线接收接收信号。

公开(公告)号：US20070064651A1

公开(公告)日：2007-03-22

申请号：US11501135

申请日：2006-08-08

申请人： Yong-Seok Kim ,  Ki-Young Han ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sung-Soo Hwang

发明人： Yong-Seok Kim ,  Ki-Young Han ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sung-Soo Hwang

IPC分类号： H04Q7/00

CPC分类号： H04W36/18

摘要： Provided are an apparatus and a method for performing a handoff in a broadband cellular communication system with a frequency reuse factor of N by using both of two neighboring frequency allocations. The method includes determining, if a mobile station receives a signal from a second base station during communication with a second base station, whether frequency allocations of the two base stations are adjacent to each other, measuring and comparing signal strengths of the two base stations if the frequency allocations are adjacent to each other, sending a handoff request to the first base station if the signal strength of the first base station is less than or equal to the signal strength of the second base station, and simultaneously receiving signals of the two frequency allocations by simultaneously allocating portions of the frequency allocations to the mobile station according to the handoff request.

摘要翻译： 提供了一种通过使用两个相邻频率分配来执行具有频率重用因子N的宽带蜂窝通信系统中的切换的装置和方法。 该方法包括：如果移动站在与第二基站通信期间接收到来自第二基站的信号，则确定两个基站的频率分配是否相邻，测量和比较两个基站的信号强度，如果 频率分配彼此相邻，如果第一基站的信号强度小于或等于第二基站的信号强度，则向第一基站发送切换请求，同时接收两个频率的信号 通过根据切换请求向移动站同时分配频率分配的部分来分配。

公开(公告)号：US20070191017A1

公开(公告)日：2007-08-16

申请号：US11698288

申请日：2007-01-25

申请人： Ki-Young Han ,  Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon

发明人： Ki-Young Han ,  Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon

IPC分类号： H04Q7/20

CPC分类号： H04W72/048 ,  H04W36/18

摘要： An apparatus and method for allocating a frequency band to an MS in a cellular system with a frequency reuse factor of N are provided, in which a frequency allocator determines whether the MS receives data simultaneously from two BSs using neighboring FAs and allocates a frequency band to the MS according to the determination, and a subcarrier mapper maps the data to subcarriers according to the frequency band allocated to the MS.

摘要翻译： 提供了一种用于在频率重用因子为N的蜂窝系统中向MS分配频带的装置和方法，其中，频率分配器确定MS是否使用相邻FA同时从两个BS接收数据，并将频带分配给 根据确定的MS，并且子载波映射器根据分配给MS的频带将数据映射到子载波。

公开(公告)号：US20070026896A1

公开(公告)日：2007-02-01

申请号：US11496815

申请日：2006-08-01

申请人： Ki-Young Han ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soon-Young Yoon ,  Yong-Seok Kim ,  Eun-Sun Choi ,  Soong-Yoon Choi

发明人： Ki-Young Han ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soon-Young Yoon ,  Yong-Seok Kim ,  Eun-Sun Choi ,  Soong-Yoon Choi

IPC分类号： H04B1/38

CPC分类号： H04L27/2655 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0053

摘要： Provided is an apparatus and method for simultaneously receiving data signals of two adjacent frequency allocation (FA) in a cellular environment. When there is another base station using an adjacent FA to an FA of the base station, a subcarrier mapper maps control information to subcarriers of predetermined sections such that a mobile station simultaneously receives data signals of the adjacent FAs. An inverse fast Fourier transform (IFFT) processor IFFT-processes data mapped to the subcarriers. Because two different BSs transmit the same data through independent paths, the mobile station can obtain a macro diversity gain. Also, it is possible to balance the loads of the two BSs.

摘要翻译： 提供了一种用于在蜂窝环境中同时接收两个相邻频率分配（FA）的数据信号的装置和方法。 当存在使用与基站的FA相邻的FA的另一基站时，子载波映射器将控制信息映射到预定部分的子载波，使得移动台同时接收相邻FA的数据信号。 反FFT快速傅里叶变换（IFFT）处理器IFFT处理映射到子载波的数据。 因为两个不同的BS通过独立的路径发送相同的数据，所以移动站可以获得宏分集增益。 此外，可以平衡两个BS的负载。

公开(公告)号：US20060281462A1

公开(公告)日：2006-12-14

申请号：US11452813

申请日：2006-06-14

申请人： Jong-In Kim ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soon-Young Yoon ,  Yong-Seok Kim ,  Soong-Yoon Choi ,  Ki-Young Han ,  Keun-Chul Hwang

发明人： Jong-In Kim ,  Young-Hoon Kwon ,  Sung-Soo Hwang ,  Soon-Young Yoon ,  Yong-Seok Kim ,  Soong-Yoon Choi ,  Ki-Young Han ,  Keun-Chul Hwang

IPC分类号： H04Q7/20

CPC分类号： H04W36/30

摘要： Disclosed is a method for determining handover of a mobile station by a mobile station in a mobile communication system. The method includes measuring a downlink reference signal intensity of a serving base station; determining to perform scanning for measurement of reference signal intensities of the serving base station and neighbor base stations, when the measured downlink reference signal intensity of the serving base station is less than a reference value, negotiating with the serving base station for a scanning period and the number of scanning repetitions, measuring the reference signal intensities of the serving base station and the neighbor base stations, and resetting the reference value when a reference signal intensity of the serving base station is greater than or equal to reference signal intensities of neighbor base stations.

摘要翻译： 公开了移动通信系统中移动台确定移动台的切换的方法。 该方法包括：测量服务基站的下行链路参考信号强度; 当所测量的服务基站的下行链路参考信号强度小于参考值时，确定执行对服务基站和相邻基站的参考信号强度的测量的扫描，在服务基站与扫描周期协商， 扫描重复次数，测量服务基站和相邻基站的参考信号强度，并且当服务基站的参考信号强度大于或等于相邻基站的参考信号强度时，重新设置参考值 。

公开(公告)号：US08320306B2

公开(公告)日：2012-11-27

申请号：US11545240

申请日：2006-10-10

申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

IPC分类号： H04W4/00

CPC分类号： H04B1/1027

摘要： An apparatus and method for improving the reception performance of a Mobile Station (MS) in a multiple antenna system are provided. In an apparatus of a Base Station (BS) in the multiple antenna system, upon receipt of a request for interference cancellation for a first MS serviced by a neighbor BS, a channel estimator estimates a channel from the first MS and a channel from a second MS serviced by the BS. A beam coefficient generator generates a first beam coefficient based on channel estimates of the first and second MSs and a second beam coefficient based on the channel estimate of the second MS. An interference cancellation decider determines whether to perform interference cancellation for the first MS using the first and second beam coefficients.

摘要翻译： 提供了一种用于提高多天线系统中的移动站（MS）的接收性能的装置和方法。 在多天线系统中的基站（BS）的装置中，当接收到由相邻BS服务的第一MS的干扰消除请求时，信道估计器估计来自第一MS的信道和来自第二MS的信道 MS由BS服务。 波束系数发生器基于第一和第二MS的信道估计生成第一波束系数，并且基于第二MS的信道估计产生第二波束系数。 干扰消除决定器使用第一和第二波束系数来确定是否对第一MS进行干扰消除。

公开(公告)号：US20070129111A1

公开(公告)日：2007-06-07

申请号：US11607930

申请日：2006-12-04

申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon

发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon

IPC分类号： H04B1/00 ,  H04M1/00

CPC分类号： H01Q3/2611

摘要： A scheduling apparatus and method in a smart antenna system including a user where an active nulling is to be conducted are provided, in which at least one user is selected where a normal beamforming is conducted corresponding to a certain criterion; an active nulling user comprising a low channel correlation with the selected beamforming user is selected from users where an active nulling is conducted; and the normal beamforming for the selected beamforming user and the active nulling beamforming for the selected active nulling user are determined. In the system where the normal beamforming user and the active nulling user are mingled, the criterion to select the users that do not interfere with one another is suggested for the same resource to thereby efficiently utilize the resource.

摘要翻译： 提供一种智能天线系统中的调度装置和方法，包括要进行有效归零的用户，其中至少一个用户被选择，其中对应于某个标准进行正常波束形成; 从进行活动归零的用户中选择包括与所选波束成形用户的低信道相关性的活动归零用户; 并且确定所选波束形成用户的正常波束形成和所选择的活动归零用户的活动归零波束形成。 在正常波束成形用户和活动归零用户混合的系统中，为同一资源建议选择不相互干扰的用户的标准，从而有效利用资源。

公开(公告)号：US20070099648A1

公开(公告)日：2007-05-03

申请号：US11592278

申请日：2006-11-02

申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon

发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon

IPC分类号： H04B7/00 ,  H04B1/00

CPC分类号： H04W52/26 ,  H04W52/24 ,  H04W52/262 ,  H04W52/267 ,  H04W52/34

摘要： A method is provided for controlling uplink power in a wireless communication system. The method includes receiving downlink channel information from a mobile station (MS); measuring uplink channel information of the MS; selecting channel information having a lower value from among the forward channel information and the uplink channel information; determining a power level and a Modulation and Coding Scheme (MCS) level for the MS using the selected channel information; and transmitting the determined power level and MCS level to the MS.

摘要翻译： 提供一种用于控制无线通信系统中的上行链路功率的方法。 该方法包括从移动台（MS）接收下行链路信道信息; 测量MS的上行链路信道信息; 从前向信道信息和上行链路信道信息中选择具有较低值的信道信息; 使用所选择的信道信息确定MS的功率电平和调制和编码方案（MCS）级别; 以及将确定的功率电平和MCS级别发送到MS。