公开(公告)号：US20090239565A1

公开(公告)日：2009-09-24

申请号：US12407951

申请日：2009-03-20

申请人： Ki-Young HAN ,  Sang-Woo LEE ,  June MOON ,  Byoung-Ha YI ,  Cheol MUN

发明人： Ki-Young HAN ,  Sang-Woo LEE ,  June MOON ,  Byoung-Ha YI ,  Cheol MUN

IPC分类号： H04B7/00 ,  H04L27/00 ,  H04B1/38 ,  H04W4/00

CPC分类号： H04B7/0417 ,  H04B7/0404 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04L25/0204 ,  H04L25/0224

摘要： An apparatus and method for beamforming of a terminal in a Multiple Input Multiple Output (MIMO) wireless communication system are provided. The method includes transmitting sounding signals beamformed through a plurality of beamforming weight vectors in sequence, receiving control information indicative of an uplink weight vector determined by a base station and a maximum channel quality value using the sounding signals and transmitting a transmit signal beamformed with the uplink weight vector via a plurality of antennas.

摘要翻译： 提供了一种用于在多输入多输出（MIMO）无线通信系统中的终端的波束成形的装置和方法。 该方法包括：依次发送通过多个波束成形权重向量形成的波束信号，接收指示由基站确定的上行链路权重向量的控制信息和使用该探测信号的最大信道质量值，并发送与上行链路形成的发射信号波束 权重向量经由多个天线。

公开(公告)号：US20090005105A1

公开(公告)日：2009-01-01

申请号：US12146403

申请日：2008-06-25

申请人： In-Seok HWANG ,  In-Taek LEE ,  Won-Kyun SUK ,  Ki-Young HAN ,  June MOON ,  Byoung-Ha YI

发明人： In-Seok HWANG ,  In-Taek LEE ,  Won-Kyun SUK ,  Ki-Young HAN ,  June MOON ,  Byoung-Ha YI

IPC分类号： H04B7/00

CPC分类号： H04W52/10 ,  H04W52/143 ,  H04W52/245 ,  H04W52/367

摘要： An apparatus and method for setting transmit power of a compact Base Station (BS) in a wireless communication system are provided. In the apparatus and method a measurer measures a signal strength corresponding to each of one or more neighbor BSs while operating in a Mobile Station (MS) mode, a receiver receives a signal strength corresponding to each of the one or more neighbor BSs measured by one or more MSs from the corresponding one or more MSs, and a self-configuration controller sets a target signal strength based on the signal strength corresponding to each of the one or more neighbor BSs measured in the MS mode and controls a transmit power so that the signal strength corresponding to each of the one or more neighbor BSs measured by the one or more MSs substantially reaches the target signal strength.

摘要翻译： 提供了一种用于在无线通信系统中设置紧凑基站（BS）的发射功率的装置和方法。 在装置和方法中，测量器在以移动站（MS）模式操作的同时测量与一个或多个相邻BS中的每一个相对应的信号强度，接收机接收对应于由一个或多个相邻BS测量的每个相邻BS的信号强度 或更多个MS，并且自配置控制器基于与在MS模式中测量的一个或多个相邻BS中的每个相对应的信号强度来设置目标信号强度，并且控制发送功率，使得 由一个或多个MS测量的与一个或多个相邻BS中的每个相对应的信号强度基本上达到目标信号强度。

公开(公告)号：US20090005108A1

公开(公告)日：2009-01-01

申请号：US12146213

申请日：2008-06-25

申请人： Eun-Sun CHOI ,  Byoung-Ha YI ,  Ki-Young HAN ,  In-Seok HWANG

发明人： Eun-Sun CHOI ,  Byoung-Ha YI ,  Ki-Young HAN ,  In-Seok HWANG

IPC分类号： H04B7/00

CPC分类号： H04W24/02 ,  H04B17/318 ,  H04B17/382 ,  H04W24/10 ,  H04W28/16 ,  H04W48/16 ,  H04W84/047 ,  Y02D70/1262

摘要： An apparatus and method for dynamic frequency assignment to a low-power Base Station (BS) in a wireless communication system are provided. The method includes receiving a Received Signal Strength Indication (RSSI) measurement result for the whole Frequency Assignment (FA) and an available FA set of the BS from the BS newly entering a network, selecting an FA having a minimum RSSI among FAs included in the available FA set, and assigning the FA having the minimum RSSI to the BS.

摘要翻译： 提供了一种用于在无线通信系统中对低功率基站（BS）的动态频率分配的装置和方法。 该方法包括从新进入网络的BS接收整个频率分配（FA）的接收信号强度指示（RSSI）测量结果和BS的可用FA集合，选择包含在FA中的FA中具有最小RSSI的FA 可用FA设置，并将具有最小RSSI的FA分配给BS。

公开(公告)号：US20120093105A1

公开(公告)日：2012-04-19

申请号：US13272459

申请日：2011-10-13

申请人： Young-Jun PARK ,  Sang-Hoon OH ,  Ki-Young HAN ,  Hyon-Goo KANG ,  Byoung-Ha YI

发明人： Young-Jun PARK ,  Sang-Hoon OH ,  Ki-Young HAN ,  Hyon-Goo KANG ,  Byoung-Ha YI

IPC分类号： H04W74/04 ,  H04W72/04

CPC分类号： H04W28/08 ,  H04L5/00 ,  H04L5/0064 ,  H04W28/02 ,  H04W72/0426 ,  H04W72/1252

摘要： A method of scheduling a subband is provided. The method includes determining whether the eNodeB is in an overload state according to a used amount of a first radio resource of the eNodeB, receiving information on a used amount of a second radio source of at least one neighbor eNodeB from the at least one neighbor eNodeB, determining whether the at least one neighbor eNodeB is in the overload state, setting a number of total subbands to be used for a subband scheduling to a number lower than a number of total subbands used by the at least one neighbor eNodeB, setting a subband scheduling start order such that the subband scheduling is started from a subband having a farthest distance in frequency from at least one subband used by the at least one neighbor eNodeB from among the set number of subbands, and performing the subband scheduling.

摘要翻译： 提供了一种调度子带的方法。 该方法包括根据eNodeB的第一无线电资源的使用量确定eNodeB是否处于过载状态，从至少一个相邻eNodeB接收关于至少一个相邻eNodeB的第二无线电源的使用量的信息 确定所述至少一个相邻eNodeB是否处于过载状态，将用于子带调度的总子带数设置为低于由所述至少一个相邻eNodeB使用的总子带数的数量，设置子带 调度开始顺序，使得子频带调度从频率上与所述至少一个相邻eNodeB中使用的至少一个子带之间的频率最远的子带从所述设定数量的子带中开始，并且执行所述子带调度。

公开(公告)号：US20090147733A1

公开(公告)日：2009-06-11

申请号：US12325382

申请日：2008-12-01

申请人： Eun-Sun CHOI ,  Byoung-Ha YI ,  Ki-Young HAN

发明人： Eun-Sun CHOI ,  Byoung-Ha YI ,  Ki-Young HAN

IPC分类号： H04W8/00

CPC分类号： H04W8/26 ,  H04W16/02 ,  H04W88/08

摘要： An apparatus and method for allocating a preamble index to a self configurable base station in a broadband wireless communication system are provided. The apparatus comprises a first selector for selecting a segment IDentifier (ID) to be allocated to a Self Configurable-Base Station (SC-BS) by using a per-segment ID Received Signal Strength Indicator (RSSI) estimated by the SC-BS, a second selector for selecting an ID cell to be allocated to the SC-BS by using geographical location information of surrounding BSs, and a communicator for transmitting a segment ID and the ID cell to the SC-BS.

摘要翻译： 提供了一种用于在宽带无线通信系统中为自配置基站分配前导码索引的装置和方法。 该装置包括：第一选择器，用于通过使用由SC-BS估计的每段ID接收信号强度指示符（RSSI）来选择要分配给自配置基站（SC-BS）的段标识符（ID） 用于通过使用周围BS的地理位置信息来选择要分配给SC-BS的ID小区的第二选择器，以及用于向SC-BS发送段ID和ID小区的通信器。

公开(公告)号：US20110170442A1

公开(公告)日：2011-07-14

申请号：US13004318

申请日：2011-01-11

申请人： Hyon-Seung LEE ,  Byoung-Ha Yi ,  Ki-Young HAN ,  Chung-Ryul CHANG

发明人： Hyon-Seung LEE ,  Byoung-Ha Yi ,  Ki-Young HAN ,  Chung-Ryul CHANG

IPC分类号： H04W24/00

CPC分类号： H04L27/2671 ,  H04B17/26 ,  H04B17/318 ,  H04B17/327 ,  H04B17/336 ,  H04B17/345 ,  H04L27/2665 ,  H04L27/2675

摘要： A method and an apparatus for estimating a Carrier-to-Noise Ratio (CNR) at a Base Station (BS) in a wireless access system are provided. In the method, a preamble signal received from at least one neighbor BS is converted to a frequency response of a preamble sequence and Inverse Fast Fourier Transform (IFFT)-processing the preamble signal, an estimation period of the IFFT-processed preamble signal, corresponding to a Fast Fourier Transform (FFT) size, is divided into a predetermined number of blocks, carrier power values of the blocks are accumulated for a predetermined number of frames, an average of timing offsets of the frames corresponding to a position of a block having a maximum average of accumulated carrier values is determined to be a timing offset of the preamble signal, a carrier power value of the preamble signal is calculated using the timing offset, and a CNR of the preamble signal is estimated using the carrier power value.

摘要翻译： 提供了一种用于估计无线接入系统中的基站（BS）的载波噪声比（CNR）的方法和装置。 在该方法中，从至少一个相邻BS接收到的前同步码信号被转换为前导码序列的频率响应，前导码信号的快速傅立叶逆变换（IFFT）处理，IFFT处理的前同步信号的估计周期对应 到快速傅立叶变换（FFT）大小被划分为预定数量的块，对于预定数量的帧累积块的载波功率值，对应于具有块的块的位置的帧的定时偏移的平均值， 累积载波值的最大平均值被确定为前导码信号的定时偏移，使用定时偏移来计算前导信号的载波功率值，并且使用载波功率值来估计前导信号的CNR。

公开(公告)号：US20080298451A1

公开(公告)日：2008-12-04

申请号：US12127489

申请日：2008-05-27

申请人： Byoung Ha YI ,  Ki-Young HAN

发明人： Byoung Ha YI ,  Ki-Young HAN

IPC分类号： H04B17/00

CPC分类号： H04B17/345 ,  H04B17/336

摘要： An apparatus and method for estimating a Carrier-to-Interference and Noise Ratio (CINR) in a communication system are provided. In the apparatus and method a signal having a traffic allocation available area that includes a preamble allocation available area is generated by Fast Fourier Transform (FFT)-processing a received symbol, power values of preamble tones included in the preamble allocation available area are calculated, a carrier power value is calculated using the power values of the preamble tones, a partial noise-interference power value is calculated using power differences between the preamble tones and power values of remaining tones other than the preamble tones, a noise power value is calculated using power values of tones included in a noise power estimation area being an area except for the preamble allocation available area in the traffic allocation available area, and the CINR is calculated using the carrier power value, the partial noise-interference power value, and the noise power value.

摘要翻译： 提供了一种用于估计通信系统中的载波与干扰和噪声比（CINR）的装置和方法。 在装置和方法中，通过快速傅里叶变换（FFT）生成包含前导码分配可用区域的业务分配可用区域的信号，处理接收的符号，计算包括在前导码分配可用区域中的前导码音调的功率值， 使用前置码音调的功率值来计算载波功率值，使用前导码音调之间的功率差和除了前导码音调之外的剩余音调的功率值来计算部分噪声干扰功率值，使用 包括在噪声功率估计区域中的音调的功率值是除了业务分配可用区域中的前导码分配可用区域之外的区域，并且使用载波功率值，部分噪声干扰功率值和噪声来计算CINR 功率值。

公开(公告)号：US20110183680A1

公开(公告)日：2011-07-28

申请号：US13006779

申请日：2011-01-14

申请人： Byoung-Ha YI ,  Ki-Young HAN

发明人： Byoung-Ha YI ,  Ki-Young HAN

IPC分类号： H04W72/04

CPC分类号： H04W72/1231 ,  H04L5/0048 ,  H04L25/0226 ,  H04L27/2613

摘要： A sounding sequence allocation method in a base station of a wireless communication system and a control system thereof are provided. The method includes, determining a cyclic shift index set different from a cyclic shift index set used by at least one second indoor base station among the plurality of indoor base stations, determining a shift value different from a shift value used by at least one indoor base station located at a periphery, and allocating a sounding sequence with cyclic shift indexes included in the determined cyclic shift index set and the determined shift value to a first indoor base station. The method may provide sounding sequence allocation minimizing interference with another outdoor or indoor base station and reduce maintenance and management costs of a system.

摘要翻译： 提供了无线通信系统的基站中的探测序列分配方法及其控制系统。 该方法包括：确定与多个室内基站中的至少一个第二室内基站使用的循环移位索引集不同的循环移位索引集，确定与至少一个室内基站所使用的移位值不同的移位值 并且将包含在所确定的循环移位索引集中的循环移位索引和确定的移位值的探测序列分配给第一室内基站。 该方法可以提供最小化与另一户外或室内基站的干扰的探测序列分配，并且降低系统的维护和管理成本。

公开(公告)号：US20100254279A1

公开(公告)日：2010-10-07

申请号：US12753483

申请日：2010-04-02

申请人： Sung-Hyun CHOI ,  Young-Kyu CHOI ,  Byoung-Gi JANG ,  Ki-Young HAN ,  Byoung-Ha YI

发明人： Sung-Hyun CHOI ,  Young-Kyu CHOI ,  Byoung-Gi JANG ,  Ki-Young HAN ,  Byoung-Ha YI

IPC分类号： H04L12/26

CPC分类号： H04L43/0894 ,  H04L43/0882 ,  H04W12/00 ,  H04W28/08 ,  H04W36/22 ,  H04W48/08 ,  H04W48/20 ,  H04W72/00 ,  H04W72/04

摘要： A method and apparatus for providing load state information of a Base Station (BS) in a broadband wireless communication system are provided. The method includes determining a ratio of a whole allocated resource compared to a whole resource of the BS and a ratio of a resource allocated for a rate requiring security compared to the whole resource, generating at least one load indicator for indicating a first value expressing the ratio of the whole allocated resource and a second value expressing the ratio of the resource allocated for the rate requiring security, and transmitting the at least one load indicator.

摘要翻译： 提供了一种用于在宽带无线通信系统中提供基站（BS）的负载状态信息的方法和装置。 该方法包括确定与BS的整个资源相比的整个分配的资源的比率以及为与整个资源相比需要安全性的速率所分配的资源的比率，生成用于指示表示所述资源的第一值的至少一个负载指示符 整个分配的资源的比率和表示为需要安全性的速率分配的资源的比率的第二值，并且发送至少一个负载指示符。

公开(公告)号：US20080075205A1

公开(公告)日：2008-03-27

申请号：US11862710

申请日：2007-09-27

申请人： Joo-Hyun LEE ,  Sang-Boh YUN ,  Ki-Young HAN ,  Young-Hoon KWON

发明人： Joo-Hyun LEE ,  Sang-Boh YUN ,  Ki-Young HAN ,  Young-Hoon KWON

IPC分类号： H04L27/06

CPC分类号： H04L27/2657 ,  H04L25/0232 ,  H04L27/2675

摘要： An apparatus and method for correcting a CPE in a signal reception apparatus of a multi-carrier communication system are provided, in which an auto-correlation of a reference signal estimated from a reference symbol among a plurality of symbols is detected, a cross-correlation between a channel estimate of the reference signal and an actual received reference signal is detected, and the CPE of the remaining symbols except the reference symbol is corrected using the auto-correlation and the cross-correlation.

摘要翻译： 提供了一种用于在多载波通信系统的信号接收装置中校正CPE的装置和方法，其中检测到从多个符号之中的参考符号估计的参考信号的自相关，互相关 检测参考信号的信道估计与实际接收的参考信号之间，并且使用自相关和互相关校正除参考符号之外的其余符号的CPE。