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1.发明申请Coding/decoding apparatus for orthogonal frequency division multiple access communication system and method for designing the same 审中-公开用于正交频分多址通信系统的编码/解码装置及其设计方法公开(公告)号：US20070016413A1
公开(公告)日：2007-01-18
申请号：US11444838
申请日：2006-06-01
申请人： Chang-Woo Seo , Jin-Youn Cho , Jae-Kon Lee , Sung-Hyun Cho , Young-Ho Jung , Hyo-Sun Hwang
发明人： Chang-Woo Seo , Jin-Youn Cho , Jae-Kon Lee , Sung-Hyun Cho , Young-Ho Jung , Hyo-Sun Hwang
IPC分类号： G10L19/02
CPC分类号： H04L1/0041 , H04L5/0007 , H04L5/0037 , H04L5/0046 , H04L5/0058 , H04L25/20 , H04L27/2602
摘要： Provided is a coding/decoding apparatus for an orthogonal frequency division multiple access (OFDMA) communication system that takes multiple users into consideration and uses block coding/decoding scheme. In the apparatus, a mapper determines paths through which information of users will be provided, according to states of sub-channels allocated to the users. A coding/decoding unit parallel-processes the information of the users through the paths selectively connected by the mapper. The coding/decoding unit includes coders/decoders having performance lower than the maximum processing performance determined taking into account a size of a processing block and the number of sub-channels.
摘要翻译： 提供了一种用于考虑多个用户并使用块编码/解码方案的正交频分多址（OFDMA）通信系统的编码/解码装置。 在该装置中，映射器根据分配给用户的子信道的状态来确定将提供用户的信息的路径。 编码/解码单元通过由映射器有选择地连接的路径并行处理用户的信息。 编码/解码单元包括编码器/解码器，其具有低于根据处理块的大小和子信道的数量确定的最大处理性能的性能。
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公开(公告)号：US20050003856A1
公开(公告)日：2005-01-06
申请号：US10858986
申请日：2004-06-02
申请人： Kyung-Hun Jang , Chang-Woo Seo , Jin-Bong Cahng , Jin-Youn Cho , Hyo-Sun Hwang
发明人： Kyung-Hun Jang , Chang-Woo Seo , Jin-Bong Cahng , Jin-Youn Cho , Hyo-Sun Hwang
IPC分类号： H04L12/28 , H04B7/00 , H04B7/26 , H04J3/00 , H04L29/02 , H04W74/04 , H04W76/02 , H04W84/10 , H04W84/12
CPC分类号： H04W72/121 , H04W72/1268
摘要： Local communication system in wireless communication system includes a main wireless terminal negotiating with each of the peripheral wireless terminals during a time period for which a frame will be transmitted, generating a schedule map including negotiated time information and a transmission sequence of each of the peripheral wireless terminals, and transmitting the generated schedule map to all peripheral wireless terminals; and the peripheral wireless terminals storing the schedule map received from the main wireless terminal, and performing communication with the main wireless terminal according to the sequence determined in the schedule map for the negotiated time period.
摘要翻译： 无线通信系统中的本地通信系统包括在发送帧的时间段期间与每个外围无线终端协商的主无线终端，生成包括协商的时间信息和每个外围无线电的发送序列的时间表 终端，并将生成的日程表图发送到所有外围无线终端; 以及存储从主无线终端接收到的时间表图的外围无线终端，并且根据协调时间段的时间表图中确定的顺序与主无线终端进行通信。
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公开(公告)号：US07593375B2
公开(公告)日：2009-09-22
申请号：US11193874
申请日：2005-07-29
申请人： Chang-Woo Seo , Kyung-Hun Jang , Jin-Youn Cho , Hyo-Sun Hwang
发明人： Chang-Woo Seo , Kyung-Hun Jang , Jin-Youn Cho , Hyo-Sun Hwang
IPC分类号： H04Q7/24
摘要： A Medium Access Control (MAC) apparatus and method for use in a channel overlay network of a wireless access system. The wireless access system, which is based on a multi-carrier, includes a plurality of physical modules for receiving signals from a plurality of terminals, a plurality of MAC (Medium Access Control) modules for processing the signals received via the physical modules while being classified according to predetermined traffic classes, and a controller connected to the MAC modules for integratedly managing the MAC modules. The MAC apparatus includes an additional MAC module used for a control channel and a plurality of MAC modules for supporting various QoS traffic data according to individual classes, thereby improving scheduling complexity in a MAC layer.
摘要翻译： 一种用于无线接入系统的信道覆盖网络的媒体接入控制（MAC）装置和方法。 基于多载波的无线接入系统包括用于从多个终端接收信号的多个物理模块，用于处理经由物理模块接收的信号的多个MAC（媒体访问控制）模块，同时 根据预定的业务类别分类，以及连接到MAC模块的控制器，用于综合地管理MAC模块。 MAC装置包括用于控制信道的附加MAC模块和用于根据各个类支持各种QoS业务数据的多个MAC模块，从而提高MAC层中的调度复杂度。
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公开(公告)号：US20050265287A1
公开(公告)日：2005-12-01
申请号：US11141114
申请日：2005-05-31
申请人： Choong-Hun Lee , Kyung-Hun Jang , Chang-Woo Seo , Jin-Youn Cho , Hyo-Sun Hwang , Sung-Jea Ko , Chun-Su Park
发明人： Choong-Hun Lee , Kyung-Hun Jang , Chang-Woo Seo , Jin-Youn Cho , Hyo-Sun Hwang , Sung-Jea Ko , Chun-Su Park
摘要： A handoff method is provided in a communication network including a plurality of fixed nodes attached to a router connected to at least one external network, and at least one mobile node associated with a current fixed node. The method detects movement of a mobile node; prepares a handoff of the mobile node from a current fixed node to potential fixed nodes upon detecting movement of the mobile node; decides whether to handoff to one of the potential fixed nodes as a target fixed node; and performs the handoff from the current fixed node to the target fixed node. The handoff method enables the mobile station to quickly move its association from one access point to another by minimizing a probe delay which is a primary contributor to handoff delay.
摘要翻译： 在包括连接到连接到至少一个外部网络的路由器的多个固定节点以及与当前固定节点相关联的至少一个移动节点的通信网络中提供切换方法。 该方法检测移动节点的移动; 在检测到移动节点的移动时，准备将移动节点从当前固定节点切换到潜在的固定节点; 决定是否切换到潜在固定节点之一作为目标固定节点; 并执行从当前固定节点到目标固定节点的切换。 切换方法使得移动站能够通过最小化作为切换延迟的主要贡献者的探测延迟来快速地将其关联从一个接入点移动到另一接入点。
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5.发明申请Method for transmitting a frame at a high rate in a wireless local area network 失效一种用于在无线局域网中高速发送帧的方法公开(公告)号：US20050030930A1
公开(公告)日：2005-02-10
申请号：US10898778
申请日：2004-07-26
申请人： Jin-Youn Cho , Chang-Woo Seo , Jin-Bong Chang , Kyung-Hun Jang , Hyo-Sun Hwang
发明人： Jin-Youn Cho , Chang-Woo Seo , Jin-Bong Chang , Kyung-Hun Jang , Hyo-Sun Hwang
摘要： A method for transmitting data at a high rate in a wireless LAN is provided. A wireless access point requests reliable node information from a wireless terminal having a transfer rate equal to or less than a predetermined transfer rate if data to be transmitted to the terminal occurs. The terminal produces a frame containing information related to reliable nodes that can communicate with the terminal and information of greatest transfer rates between the reliable nodes and the terminal, and transmits the frame to the access point. The access point selects an optimal relay node from the reliable nodes, based on the greatest transfer rates between the reliable nodes and the access point and transfer rates between the reliable nodes and the terminal, and determines if a relay gain exists when using the optimal node. If the relay gain exists, the access point performs relay transmission to the terminal; otherwise, it performs direct transmission to it.
摘要翻译： 提供了一种在无线LAN中以高速率发送数据的方法。 如果发送到终端的数据发生，则无线接入点从具有等于或小于预定传输速率的传输速率的无线终端请求可靠节点信息。 终端产生包含与终端通信的可靠节点和可靠节点与终端之间传输速率最大的信息相关联的帧，并将帧发送到接入点。 接入点根据可靠节点与接入点之间的最大传输速率和可靠节点与终端之间的传输速率，从可靠节点中选择最佳中继节点，并确定在使用最优节点时是否存在中继增益 。 如果存在继电器增益，则接入点对终端执行中继传输; 否则，它直接传输到它。
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6.发明授权Method for transmitting a frame at a high rate in a wireless local area network 失效一种用于在无线局域网中高速发送帧的方法公开(公告)号：US07489668B2
公开(公告)日：2009-02-10
申请号：US10898778
申请日：2004-07-26
申请人： Jin-Youn Cho , Chang-Woo Seo , Jin-Bong Chang , Kyung-Hun Jang , Hyo-Sun Hwang
发明人： Jin-Youn Cho , Chang-Woo Seo , Jin-Bong Chang , Kyung-Hun Jang , Hyo-Sun Hwang
IPC分类号： H04Q7/22
摘要： A method for transmitting data at a high rate in a wireless LAN is provided. A wireless access point requests reliable node information from a wireless terminal having a transfer rate equal to or less than a predetermined transfer rate if data to be transmitted to the terminal occurs. The terminal produces a frame containing information related to reliable nodes that can communicate with the terminal and information of greatest transfer rates between the reliable nodes and the terminal, and transmits the frame to the access point. The access point selects an optimal relay node from the reliable nodes, based on the greatest transfer rates between the reliable nodes and the access point and transfer rates between the reliable nodes and the terminal, and determines if a relay gain exists when using the optimal node. If the relay gain exists, the access point performs relay transmission to the terminal; otherwise, it performs direct transmission to it.
摘要翻译： 提供了一种在无线LAN中以高速率发送数据的方法。 如果发送到终端的数据发生，则无线接入点从具有等于或小于预定传输速率的传输速率的无线终端请求可靠节点信息。 终端产生包含与终端通信的可靠节点和可靠节点与终端之间传输速率最大的信息相关联的帧，并将帧发送到接入点。 接入点根据可靠节点与接入点之间的最大传输速率和可靠节点与终端之间的传输速率，从可靠节点中选择最佳中继节点，并确定在使用最优节点时是否存在中继增益 。 如果存在继电器增益，则接入点对终端执行中继传输; 否则，它直接传输到它。
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公开(公告)号：US07643790B2
公开(公告)日：2010-01-05
申请号：US10858986
申请日：2004-06-02
申请人： Kyung-Hun Jang , Chang-Woo Seo , Jin-Bong Cahng , Jin-Youn Cho , Hyo-Sun Hwang
发明人： Kyung-Hun Jang , Chang-Woo Seo , Jin-Bong Cahng , Jin-Youn Cho , Hyo-Sun Hwang
IPC分类号： H04B7/15
CPC分类号： H04W72/121 , H04W72/1268
摘要： Local communication system in wireless communication system includes a main wireless terminal negotiating with each of the peripheral wireless terminals during a time period for which a frame will be transmitted, generating a schedule map including negotiated time information and a transmission sequence of each of the peripheral wireless terminals, and transmitting the generated schedule map to all peripheral wireless terminals; and the peripheral wireless terminals storing the schedule map received from the main wireless terminal, and performing communication with the main wireless terminal according to the sequence determined in the schedule map for the negotiated time period.
摘要翻译： 无线通信系统中的本地通信系统包括在发送帧的时间段期间与每个外围无线终端协商的主无线终端，生成包括协商的时间信息和每个外围无线电的发送序列的时间表 终端，并将生成的日程表图发送到所有外围无线终端; 以及存储从主无线终端接收到的时间表图的外围无线终端，并且根据协调时间段的时间表图中确定的顺序与主无线终端进行通信。
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公开(公告)号：US07403506B2
公开(公告)日：2008-07-22
申请号：US11141114
申请日：2005-05-31
申请人： Choong-Hun Lee , Kyung-Hun Jang , Chang-Woo Seo , Jin-Youn Cho , Hyo-Sun Hwang , Sung-Jea Ko , Chun-Su Park
发明人： Choong-Hun Lee , Kyung-Hun Jang , Chang-Woo Seo , Jin-Youn Cho , Hyo-Sun Hwang , Sung-Jea Ko , Chun-Su Park
IPC分类号： H04Q7/20
摘要： A handoff method is provided in a communication network including a plurality of fixed nodes attached to a router connected to at least one external network, and at least one mobile node associated with a current fixed node. The method detects movement of a mobile node; prepares a handoff of the mobile node from a current fixed node to potential fixed nodes upon detecting movement of the mobile node; decides whether to handoff to one of the potential fixed nodes as a target fixed node; and performs the handoff from the current fixed node to the target fixed node. The handoff method enables the mobile station to quickly move its association from one access point to another by minimizing a probe delay which is a primary contributor to handoff delay.
摘要翻译： 在包括连接到连接到至少一个外部网络的路由器的多个固定节点以及与当前固定节点相关联的至少一个移动节点的通信网络中提供切换方法。 该方法检测移动节点的移动; 在检测到移动节点的移动时，准备将移动节点从当前固定节点切换到潜在的固定节点; 决定是否切换到潜在固定节点之一作为目标固定节点; 并执行从当前固定节点到目标固定节点的切换。 切换方法使得移动站能够通过最小化作为切换延迟的主要贡献者的探测延迟来快速地将其关联从一个接入点移动到另一接入点。
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公开(公告)号：US20060023684A1
公开(公告)日：2006-02-02
申请号：US11193874
申请日：2005-07-29
申请人： Chang-Woo Seo , Kyung-Hun Jang , Jin-Youn Cho , Hyo-Sun Hwang
发明人： Chang-Woo Seo , Kyung-Hun Jang , Jin-Youn Cho , Hyo-Sun Hwang
IPC分类号： H04Q7/24
摘要： A Medium Access Control (MAC) apparatus and method for use in a channel overlay network of a wireless access system. The wireless access system, which is based on a multi-carrier, includes a plurality of physical modules for receiving signals from a plurality of terminals, a plurality of MAC (Medium Access Control) modules for processing the signals received via the physical modules while being classified according to predetermined traffic classes, and a controller connected to the MAC modules for integratedly managing the MAC modules. The MAC apparatus includes an additional MAC module used for a control channel and a plurality of MAC modules for supporting various QoS traffic data according to individual classes, thereby improving scheduling complexity in a MAC layer.
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10.发明授权Apparatus and method for selecting antenna in an orthogonalized spatial multiplexing system 有权在正交空间复用系统中选择天线的装置和方法公开(公告)号：US08155231B2
公开(公告)日：2012-04-10
申请号：US11850301
申请日：2007-09-05
申请人： Kyung-Hun Jang , In-Kyu Lee , Dong-Jun Lee , Heun-Chul Lee , Jung-Hoon Suh , Young-Soo Kim , Hyo-Sun Hwang
发明人： Kyung-Hun Jang , In-Kyu Lee , Dong-Jun Lee , Heun-Chul Lee , Jung-Hoon Suh , Young-Soo Kim , Hyo-Sun Hwang
IPC分类号： H04B7/02
CPC分类号： H04B7/0691 , H04B7/061 , H04B7/0697 , H04L1/0054
摘要： A method for selecting an antenna in an orthogonalized spatial multiplexing system. Upon receipt of at least one symbol from a transmitter via multiple receive antennas, a receiver decodes each of the received symbols; determines a rotation angle between the received symbols, and selects an optimal subset of transmit antennas using a distance between vectors of the decoded symbols; generates feedback information including the determined rotation angle and the selected optimal subset, and transmits the generated feedback information to the transmitter. Upon receipt of the feedback information, the transmitter beam-forms an antenna corresponding to the optimal subset depending on the received feedback information, and transmits a data symbol to the receiver. The receiver detects each of data symbols received from the transmitter.
摘要翻译： 一种在正交空间复用系统中选择天线的方法。 在经由多个接收天线从发射机接收到至少一个符号后，接收机对每个所接收的符号进行解码; 确定接收到的符号之间的旋转角度，并使用解码符号的向量之间的距离来选择发射天线的最佳子集; 产生包括所确定的旋转角度和所选择的最佳子集的反馈信息，并将生成的反馈信息发送到发射机。 在接收到反馈信息时，发射机波束根据接收的反馈信息形成对应于最佳子集的天线，并将数据符号发送到接收机。 接收机检测从发射机接收的每个数据符号。
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