公开(公告)号：US07969940B2

公开(公告)日：2011-06-28

申请号：US11900333

申请日：2007-09-10

申请人： Byung-Jik Kim ,  Seong-Taek Hwang ,  Won-Jin Sung ,  Jin-Woo Choe ,  Jong-Hyun Park ,  Jong-Hyun Kim

发明人： Byung-Jik Kim ,  Seong-Taek Hwang ,  Won-Jin Sung ,  Jin-Woo Choe ,  Jong-Hyun Park ,  Jong-Hyun Kim

IPC分类号： H04W4/00

CPC分类号： H04W72/085 ,  H04W4/08 ,  H04W84/047

摘要： A method of assigning radio resources in a cellular system using wired Relay Stations (RSs) includes: a Base Station (BS) gathering feed-back control information of all Mobile Stations (MSs) via the RSs in a cell of the BS; a first process, wherein the MSs are divided into two groups according to a channel state of each MS; a second process, wherein sub-channels are dynamically assigned to MSs belonging to a group, in which a channel state of each MS is good, of the two groups; and a third process, wherein sub-channels are dynamically assigned to MSs belonging to a group, in which a channel state of each MS is bad, of the two groups by considering a resource state per RS and a channel gain between sub-channels.

摘要翻译： 一种使用有线中继站（RS）在蜂窝系统中分配无线电资源的方法包括：基站（BS），经由BS的小区中的RS收集所有移动站（MS）的反馈控制信息; 第一处理，其中根据每个MS的信道状态将MS划分成两组; 第二过程，其中子信道被动态地分配给属于组中每个MS的信道状态良好的组的MS; 以及第三处理，其中通过考虑每RS的资源状态和子信道之间的信道增益，子通道被动态地分配给两个组中属于每个MS的信道状态的组的MS。

公开(公告)号：US20080119194A1

公开(公告)日：2008-05-22

申请号：US11900333

申请日：2007-09-10

申请人： Byung-Jik Kim ,  Seong-Taek Hwang ,  Won-Jin Sung ,  Jin-Woo Choe ,  Jong-Hyun Park ,  Jong-Hyun Kim

发明人： Byung-Jik Kim ,  Seong-Taek Hwang ,  Won-Jin Sung ,  Jin-Woo Choe ,  Jong-Hyun Park ,  Jong-Hyun Kim

IPC分类号： H04Q7/20

CPC分类号： H04W72/085 ,  H04W4/08 ,  H04W84/047

摘要： A method of assigning radio resources in a cellular system using wired Relay Stations (RSs) includes: a Base Station (BS) gathering feed-back control information of all Mobile Stations (MSs) via the RSs in a cell of the BS; a first process, wherein the MSs are divided into two groups according to a channel state of each MS; a second process, wherein sub-channels are dynamically assigned to MSs belonging to a group, in which a channel state of each MS is good, of the two groups; and a third process, wherein sub-channels are dynamically assigned to MSs belonging to a group, in which a channel state of each MS is bad, of the two groups by considering a resource state per RS and a channel gain between sub-channels.

摘要翻译： 一种使用有线中继站（RS）在蜂窝系统中分配无线电资源的方法包括：基站（BS），经由BS的小区中的RS收集所有移动站（MS）的反馈控制信息; 第一处理，其中根据每个MS的信道状态将MS划分成两组; 第二过程，其中子信道被动态地分配给属于组中每个MS的信道状态良好的组的MS; 以及第三处理，其中通过考虑每RS的资源状态和子信道之间的信道增益，子通道被动态地分配给两个组中属于每个MS的信道状态的组的MS。

公开(公告)号：US08134945B2

公开(公告)日：2012-03-13

申请号：US11965804

申请日：2007-12-28

申请人： Byung-Jik Kim ,  Seong-Taek Hwang ,  Won-Jin Sung ,  Jin-Woo Choe ,  Jong-Hyun Park ,  Jong-Hyun Kim

发明人： Byung-Jik Kim ,  Seong-Taek Hwang ,  Won-Jin Sung ,  Jin-Woo Choe ,  Jong-Hyun Park ,  Jong-Hyun Kim

IPC分类号： H04B7/00 ,  H04B7/14 ,  H04B7/185 ,  H04B1/00 ,  H04B17/00 ,  H04B15/00 ,  H04W4/00 ,  H03C1/62

CPC分类号： H04B7/026

摘要： A method, apparatus and system for increasing cell capacity through optional signal combining between Relay Stations (RSs) in a cellular system using wired RSs is disclosed. The method includes receiving, by a Base Station (BS), an average Carrier-to-Interference ratio (C/I) value of transmission signals from Mobile Stations (MSs) located inside each coverage area, being fed back from the RSs or the MSs in its corresponding cell; classifying the MSs into two groups according to the C/I value; performing resource allocation satisfying a minimum data rate from a corresponding RS, for MSs belonging to a group having a C/I value greater than a preset threshold Γ among the classified groups; performing resource allocation by applying an optional signal combining scheme taking into account two RSs having a highest C/I value, for MSs belonging to a group having a C/I value below the threshold among the classified groups; and allocating all unallocated subchannels of each individual RS in an order of an MS having a high C/I value among MSs of a corresponding RS until there is no more unallocated subchannel of each RS.

摘要翻译： 公开了一种通过在使用有线RS的蜂窝系统中的继电器站（RS）之间的可选信号组合来增加小区容量的方法，装置和系统。 该方法包括由基站（BS）从位于每个覆盖区域内的移动站（MS）发送的信号的平均载波干扰比（C / I）值从RS或 MS在其相应的细胞; 根据C / I值将MS分为两组; 对于属于具有大于预设阈值Ggr的C / I值的组的MS执行从对应的RS执行满足最小数据速率的资源分配; 在分类集团中; 通过对分类组中具有C / I值低于阈值的组的MS应用考虑了具有最高C / I值的两个RS的可选信号组合方案来执行资源分配; 并且以对应RS的MS中的具有高C / I值的MS的顺序分配每个单独RS的所有未分配子信道，直到每个RS不再有未分配的子信道。

公开(公告)号：US20080102881A1

公开(公告)日：2008-05-01

申请号：US11977612

申请日：2007-10-25

申请人： Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

发明人： Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

IPC分类号： H04Q7/20 ,  H04M1/00

CPC分类号： H01Q3/30 ,  H04B7/0443 ,  H04B7/0669 ,  H04B7/0691 ,  H04W52/346 ,  H04W52/42

摘要： An apparatus that adaptively allocates transmission power for beam-forming combined with orthogonal space time block codes in a distributed wireless communication system, the apparatus including: sub-arrays for beam-forming, which are geographically distributed and each of which includes a plurality of distributed antennas placed in random groups. A central processing unit provides predetermined combinable power allocation schemes according to subsets in a plurality of the sub-arrays, identifying performances of the schemes by using information on large-scale fading of each of the sub-arrays fed back from a receiving party, setting a subset having best performance as an optimal subset according to the identified performances, and performing power allocation according thereto.

摘要翻译： 一种在分布式无线通信系统中自适应地分配与正交空间时间块码组合的波束成形的发射功率的装置，该装置包括：地理分布的波束形成子阵列，每个子阵列包括多个分布式 天线放置在随机组中。 中央处理单元根据多个子阵列中的子集提供预定的可组合功率分配方案，通过使用关于从接收方反馈的每个子阵列的大规模衰落的信息来识别方案的性能，设置 根据所识别的性能，具有作为最佳子集的最佳性能的子集，以及根据所识别的性能执行功率分配。

公开(公告)号：US20070133995A1

公开(公告)日：2007-06-14

申请号：US11607700

申请日：2006-12-01

申请人： Jae-Hoon Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sang-Ho Kim ,  Yong-Gyoo Kim ,  Sung-Kee Kim ,  Han-Lim Lee

发明人： Jae-Hoon Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sang-Ho Kim ,  Yong-Gyoo Kim ,  Sung-Kee Kim ,  Han-Lim Lee

IPC分类号： H04B10/00

CPC分类号： H04B10/25758

摘要： A remote access unit (RAU) apparatus, coupled to a central station (CS) of an RoF network through at least one optical fiber, and which RAU apparatus includes at least one antenna, includes: first and second antenna ports coupled to the at least one antenna; first and second optical fiber ports coupled to the at least one optical fiber; a first coupler for decoupling a first downstream signal of a first duplexing method and a second downstream signal of a second duplexing method, which are input through the first optical fiber port; a circulator for outputting the first downstream signal input from the first coupler to the first antenna port and outputting a first upstream signal of the first duplexing method input from the first antenna port to the second optical fiber port; and a second coupler for outputting the second downstream signal input from the first coupler to the second antenna port and outputting a second upstream signal of the second duplexing method input from the second antenna port to the second optical fiber port.

摘要翻译： 一种远程接入单元（RAU）装置，其通过至少一个光纤耦合到RoF网络的中心站（CS），并且所述RAU设备包括至少一个天线，包括：耦合到所述至少一个天线的第一和第二天线端口 一个天线 耦合到所述至少一个光纤的第一和第二光纤端口; 用于去耦第一双工方法的第一下行信号和通过第一光纤端口输入的第二双工方法的第二下行信号的第一耦合器; 输出从第一耦合器输入的第一下行信号到第一天线端口的循环器，并输出从第一天线端口输入到第二光纤端口的第一双工方式的第一上行信号; 以及第二耦合器，用于将从第一耦合器输入的第二下行信号输出到第二天线端口，并输出从第二天线端口输入到第二光纤端口的第二双工方法的第二上行信号。

公开(公告)号：US08594424B2

公开(公告)日：2013-11-26

申请号：US12632118

申请日：2009-12-07

申请人： Seong-Taek Hwang ,  Sang-Wook Oh ,  Hyun-Soo Kim ,  Sang-Ho Kim ,  Hee-Min Kwon ,  Yun-Je Oh ,  Byung-Jik Kim

发明人： Seong-Taek Hwang ,  Sang-Wook Oh ,  Hyun-Soo Kim ,  Sang-Ho Kim ,  Hee-Min Kwon ,  Yun-Je Oh ,  Byung-Jik Kim

IPC分类号： G06K9/34 ,  G06K9/00

CPC分类号： H04N5/225 ,  G06K9/228 ,  G06K9/723 ,  G06K2209/01

摘要： An apparatus and method for recognizing characters of an image captured using a camera in a mobile terminal are provided, wherein an image of a signboard is captured, a text area is extracted from the captured image of the signboard, characters are recognized from the extracted text area, similar characters up to a predetermined priority level are generated for each recognized character of the extracted text area, location information of an area within a predetermined range from a current position of a user is acquired, store names are extracted from the location information, text is generated by combining the similar characters according to weights, the text are compared with the extracted store names, and a comparison result is output.

摘要翻译： 提供一种用于识别在移动终端中使用相机拍摄的图像的字符的装置和方法，其中捕获招牌的图像，从所述招牌的所捕获的图像中提取文本区域，从所提取的文本中识别字符 为所提取的文本区域的每个识别字符生成直到预定优先级的类似字符，获取来自用户的当前位置的预定范围内的区域的位置信息，从位置信息中提取存储名称， 通过根据权重组合相似的字符来生成文本，将文本与提取的商店名称进行比较，并输出比较结果。

公开(公告)号：US08295211B2

公开(公告)日：2012-10-23

申请号：US12269986

申请日：2008-11-13

申请人： Jae-Hoon Lee ,  Ki-Uk Song ,  Seong-Taek Hwang ,  Byung-Jik Kim

发明人： Jae-Hoon Lee ,  Ki-Uk Song ,  Seong-Taek Hwang ,  Byung-Jik Kim

IPC分类号： H04J3/00

CPC分类号： H04L5/1469 ,  H04L5/0007 ,  H04L5/0044

摘要： A method for transmitting/receiving data in an orthogonal frequency division multiple access-time division duplex (OFDMA-TDD) scheme. A first uplink signal and a first downlink signal of a specific band are periodically transmitted/received within a time-divided section. A second uplink signal and a second downlink signal are periodically transmitted/received, and the second signal is of a band other than the specific band, within the time-divided section, wherein, during a time section in which the first downlink signal is transmitted, the second uplink signal is received.

摘要翻译： 一种用于在正交频分多址接入时分双工（OFDMA-TDD）方案中发送/接收数据的方法。 在分时段内周期性地发送/接收特定频带的第一上行链路信号和第一下行链路信号。 周期性地发送/接收第二上行链路信号和第二下行链路信号，并且第二信号是在分时段内的特定频带之外的频带，其中在发送第一下行链路信号的时间段期间 ，接收第二上行链路信号。

公开(公告)号：US08060126B2

公开(公告)日：2011-11-15

申请号：US12018887

申请日：2008-01-24

申请人： Shuangfeng Han ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

发明人： Shuangfeng Han ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

IPC分类号： H04B7/00 ,  H04B1/66 ,  H04C7/02

CPC分类号： H04W52/42 ,  H04W52/20

摘要： Disclosed is a device for allocating transmission power using a symbol error rate (SER) for orthogonal space-time block codes (OSTBC) in a wireless communication system. The device includes: a plurality of antennas, which are distributed geographically and independently linked to a central processing unit; a receiver to select an optimum subset of the SER performance, using a preset power allocation to each of available antenna subset combinations, and sending the selected subset to a transmitter; and a central processing unit to allocate power by applying an OSTBC symbol having a unit average power to the optimum subset from the receiver.

摘要翻译： 公开了一种用于在无线通信系统中使用正交空时块码（OSTBC）的符号错误率（SER）来分配发送功率的装置。 该设备包括：多个天线，分布在地理上和独立地连接到中央处理单元; 使用对每个可用天线子组合的预设功率分配以及将所选择的子集发送到发射机的接收机来选择SER性能的最佳子集; 以及中央处理单元，通过从接收器向最佳子集应用具有单位平均功率的OSTBC符号来分配功率。

公开(公告)号：US07796891B2

公开(公告)日：2010-09-14

申请号：US11633838

申请日：2006-12-05

申请人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

发明人： Han-Lim Lee ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Jae-Hoon Lee ,  Yong-Gyoo Kim ,  Sang-Ho Kim ,  Sung-Kee Kim

IPC分类号： H04B10/00

CPC分类号： H04B10/25758 ,  H04H20/69 ,  H04H20/71 ,  H04W88/085 ,  H04W88/10

摘要： Disclosed is a radio-over-fiber (ROF) system for supporting various services, the system comprising: a central access platform (CAP) for providing time division duplexing (TDD), frequency division duplexing (FDD), and broadcasting services, converting a TDD downward signal and FDD/broadcasting downward signals into optical signals, respectively, transmitting the converted optical signals to a remote access unit (RAU), converting a TDD upward signal and an FDD upward signal, which have been transmitted as optical signals from the RAU, into electric signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other; and the RAU for converting the TDD downward signal and FDD/broadcasting downward signals transmitted from the CAP into electric signals, respectively, converting the TDD upward signal and FDD upward signal to be transmitted to the CAP into optical signals, respectively, and using an optical circulator in order to separate upward and downward signals from each other, wherein the RAU includes a plurality of signal filtering/separating/combining units, which wirelessly emit the TDD downward signal and FDD/broadcasting downward signals, having been converted into electric signals, through an antenna, and which separate wirelessly-received TDD upward signal and FDD upward signal from each other.

摘要翻译： 公开了用于支持各种业务的无线电光纤（ROF）系统，该系统包括：用于提供时分双工（TDD），频分双工（FDD）和广播服务的中央接入平台（CAP） TDD向下信号和FDD /广播向下信号分别转换成光信号，将转换后的光信号发送到远程接入单元（RAU），转换已经作为光信号从RAU发送的TDD上行信号和FDD向上信号 分别变成电信号，并使用光循环器，以便彼此分离上下信号; 以及分别将从CAP发送的TDD向下信号和FDD /广播向下信号转换成电信号的RAU，分别将TDD向上信号和FDD向上信号转换为发送到CAP的光信号，并使用光 循环器，以便彼此分离上下信号，其中RAU包括多个信号滤波/分离/组合单元，其经过转换成电信号无线地发射TDD向下信号和FDD /广播向下信号，通过 天线，并且将无线接收的TDD上行信号和FDD上行信号彼此分离。

公开(公告)号：US20080182611A1

公开(公告)日：2008-07-31

申请号：US12018887

申请日：2008-01-24

申请人： Shuangfeng Han ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

发明人： Shuangfeng Han ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Han-Lim Lee

IPC分类号： H04B7/00

CPC分类号： H04W52/42 ,  H04W52/20

摘要： Disclosed is a device for allocating transmission power using a symbol error rate (SER) for orthogonal space-time block codes (OSTBC) in a wireless communication system. The device includes: a plurality of antennas, which are distributed geographically and independently linked to a central processing unit; a receiver to select an optimum subset of the SER performance, using a preset power allocation to each of available antenna subset combinations, and sending the selected subset to a transmitter; and a central processing unit to allocate power by applying an OSTBC symbol having a unit average power to the optimum subset from the receiver.

摘要翻译： 公开了一种用于在无线通信系统中使用正交空时块码（OSTBC）的符号错误率（SER）来分配发送功率的装置。 该设备包括：多个天线，分布在地理上和独立地连接到中央处理单元; 使用对每个可用天线子组合的预设功率分配以及将所选择的子集发送到发射机的接收机来选择SER性能的最佳子集; 以及中央处理单元，通过从接收器向最佳子集应用具有单位平均功率的OSTBC符号来分配功率。