公开(公告)号：US08588190B2

公开(公告)日：2013-11-19

申请号：US11910143

申请日：2006-03-28

申请人： Dan Keun Sung ,  Bang Chul Jung ,  Ho Young Hwang ,  Chang Yong Jung ,  Young Jun Hong ,  Jo Woon Chong

发明人： Dan Keun Sung ,  Bang Chul Jung ,  Ho Young Hwang ,  Chang Yong Jung ,  Young Jun Hong ,  Jo Woon Chong

IPC分类号： H04J3/00

CPC分类号： H04W56/0045 ,  H04B7/2671 ,  Y02D70/449

摘要： A multiple access digital communication method in ultra-wideband (UWB) radio access network is provided. More specifically, a multiple access technique in UWB communication channels is provided where UWB communication channels can be more efficiently used and collisions between multiple access user nodes can be more effectively avoided when the channels have a great multiple path fading. The digital communication method for use in an uplink in a UWB communication system includes the steps of: receiving data symbols from respective nodes, in which the data symbols are transmitted according to respective orthogonal time hopping patterns; checking whether there is a collision of the orthogonal time hopping patterns; and decoding the data symbols depending on whether data symbols of nodes involved in the collision of the orthogonal time hopping patterns are the same.

摘要翻译： 提供了一种在超宽带（UWB）无线电接入网络中的多址数字通信方法。 更具体地说，提供了UWB通信信道中的多址技术，其中可以更有效地使用UWB通信信道，并且当信道具有大的多径衰落时，可以更有效地避免多个接入用户节点之间的冲突。 用于UWB通信系统中的上行链路的数字通信方法包括以下步骤：从各个节点接收数据符号，根据各自的正交跳频模式发送数据符号; 检查是否存在正交跳频图案的冲突; 以及根据涉及正交跳频图案的冲突的节点的数据符号是否相同来对数据符号进行解码。

公开(公告)号：US20080165746A1

公开(公告)日：2008-07-10

申请号：US11910143

申请日：2006-03-28

申请人： Dan Keun Sung ,  Bang Chul Jung ,  Ho Young Hwang ,  Chang Yong Jung ,  Young Jun Hong ,  Jo Woon Chong

发明人： Dan Keun Sung ,  Bang Chul Jung ,  Ho Young Hwang ,  Chang Yong Jung ,  Young Jun Hong ,  Jo Woon Chong

IPC分类号： H04B7/212

CPC分类号： H04W56/0045 ,  H04B7/2671 ,  Y02D70/449

摘要： A multiple access digital communication method in ultra-wideband (UWB) radio access network is provided. More specifically, a multiple access technique in UWB communication channels is provided where UWB communication channels can be more efficiently used and collisions between multiple access user nodes can be more effectively avoided when the channels have a great multiple path fading. The digital communication method for use in an uplink in a UWB communication system includes the steps of: receiving data symbols from respective nodes, in which the data symbols are transmitted according to respective orthogonal time hopping patterns; checking whether there is a collision of the orthogonal time hopping patterns; and decoding the data symbols depending on whether data symbols of nodes involved in the collision of the orthogonal time hopping patterns are the same.

摘要翻译： 提供了一种在超宽带（UWB）无线电接入网络中的多址数字通信方法。 更具体地说，提供了UWB通信信道中的多址技术，其中可以更有效地使用UWB通信信道，并且当信道具有大的多径衰落时，可以更有效地避免多个接入用户节点之间的冲突。 用于UWB通信系统中的上行链路的数字通信方法包括以下步骤：从各个节点接收数据符号，根据各自的正交跳频模式发送数据符号; 检查是否存在正交跳频图案的冲突; 以及根据涉及正交跳频图案的冲突的节点的数据符号是否相同来对数据符号进行解码。

公开(公告)号：US08559572B2

公开(公告)日：2013-10-15

申请号：US13342360

申请日：2012-01-03

申请人： Dan Keun Sung ,  Jo Woon Chong ,  Bang Chul Jung ,  Min Jeong Kim

发明人： Dan Keun Sung ,  Jo Woon Chong ,  Bang Chul Jung ,  Min Jeong Kim

IPC分类号： H03D1/04 ,  H04B1/00

CPC分类号： H04B1/719 ,  H04B1/71637

摘要： An Ultra-Wideband (UWB) wireless communication system in a multi-user environment determines a threshold value to eliminate a signal pulse affected by a near-interference from among a plurality of signal pulses transmitted a number of times. A method for controlling an interference includes receiving the signal pulses, calculating a correlation value by applying a predetermined correlation mask to the signal pulses, determining a threshold value by referring to the number of times that the signal pulses are transmitted, a signal-to-interference-and-noise ratio, and information about a ratio of a near-interference to a far-interference, and eliminating signal pulses having a correlation value greater than the threshold value. The correlation values that are not greater than the threshold value are summed to detect a bit corresponding to each pulse signal.

摘要翻译： 多用户环境中的超宽带（UWB）无线通信系统确定阈值以消除多次发送的多个信号脉冲中受近干扰影响的信号脉冲。 控制干扰的方法包括接收信号脉冲，通过对信号脉冲施加预定的相关掩模来计算相关值，通过参考发送信号脉冲的次数来确定阈值， 干扰和噪声比以及关于近干扰与远干扰的比率的信息，以及消除具有大于阈值的相关值的信号脉冲。 将不大于阈值的相关值相加以检测与每个脉冲信号相对应的位。

公开(公告)号：US08102952B2

公开(公告)日：2012-01-24

申请号：US11733342

申请日：2007-04-10

申请人： Dan Keun Sung ,  Jo Woon Chong ,  Bang Chul Jung ,  Min Jeong Kim

发明人： Dan Keun Sung ,  Jo Woon Chong ,  Bang Chul Jung ,  Min Jeong Kim

IPC分类号： H03D1/00 ,  H03D1/04

CPC分类号： H04B1/719 ,  H04B1/71637

摘要： An Ultra-Wideband (UWB) wireless communication system in a multi-user environment determines a threshold value to eliminate a signal pulse affected by a near-interference from among a plurality of signal pulses transmitted a number of times. A method for controlling an interference includes receiving the signal pulses, calculating a correlation value by applying a predetermined correlation mask to the signal pulses, determining a threshold value by referring to the number of times that the signal pulses are transmitted, a signal-to-interference-and-noise ratio, and information about a ratio of a near-interference to a far-interference, and eliminating signal pulses having a correlation value greater than the threshold value. The correlation values that are not greater than the threshold value are summed to detect a bit corresponding to each pulse signal.

摘要翻译： 多用户环境中的超宽带（UWB）无线通信系统确定阈值以消除多次发送的多个信号脉冲中受近干扰影响的信号脉冲。 控制干扰的方法包括接收信号脉冲，通过对信号脉冲施加预定的相关掩模来计算相关值，通过参考发送信号脉冲的次数来确定阈值， 干扰和噪声比以及关于近干扰与远干扰的比率的信息，以及消除具有大于阈值的相关值的信号脉冲。 将不大于阈值的相关值相加以检测与每个脉冲信号相对应的位。

公开(公告)号：US20080084917A1

公开(公告)日：2008-04-10

申请号：US11733342

申请日：2007-04-10

申请人： Dan Keun Sung ,  Jo Woon Chong ,  Bang Chul Jung ,  Min Jeong Kim

发明人： Dan Keun Sung ,  Jo Woon Chong ,  Bang Chul Jung ,  Min Jeong Kim

IPC分类号： H04B1/00 ,  H04L27/06 ,  H03D1/04

CPC分类号： H04B1/719 ,  H04B1/71637

摘要： An Ultra-Wideband (UWB) wireless communication system in a multi-user environment determines a threshold value to eliminate a signal pulse affected by a near-interference from among a plurality of signal pulses transmitted a number of times. A method for controlling an interference includes receiving the signal pulses, calculating a correlation value by applying a predetermined correlation mask to the signal pulses, determining a threshold value by referring to the number of times that the signal pulses are transmitted, a signal-to-interference-and-noise ratio, and information about a ratio of a near-interference to a far-interference, and eliminating signal pulses having a correlation value greater than the threshold value. The correlation values that are not greater than the threshold value are summed to detect a bit corresponding to each pulse signal.

摘要翻译： 多用户环境中的超宽带（UWB）无线通信系统确定阈值以消除多次发送的多个信号脉冲中受近干扰影响的信号脉冲。 控制干扰的方法包括接收信号脉冲，通过对信号脉冲施加预定的相关掩模来计算相关值，通过参考发送信号脉冲的次数来确定阈值， 干扰和噪声比以及关于近干扰与远干扰的比率的信息，以及消除具有大于阈值的相关值的信号脉冲。 将不大于阈值的相关值相加以检测与每个脉冲信号相对应的位。

公开(公告)号：US08675510B2

公开(公告)日：2014-03-18

申请号：US12582164

申请日：2009-10-20

申请人： Dan Keun Sung ,  Bang Chul Jung ,  Jin Hu ,  Ho Young Hwang

发明人： Dan Keun Sung ,  Bang Chul Jung ,  Jin Hu ,  Ho Young Hwang

IPC分类号： G01R31/08

CPC分类号： H04L5/0037 ,  H04B7/0404 ,  H04B7/0452 ,  H04L5/0023 ,  H04L5/006

摘要： A scheduler and scheduling method that may select a data transmission time interval and a data transmitting station are included in a multi-user Multiple Input Multiple Output (MIMO) communication system. An access point may include a receiver to receive channel measurement signals from stations using a plurality of receive antennas; a channel estimation unit to generate channel state matrices with respect to wireless channels formed from the stations to the receive antennas using the channel measurement signals; and a scheduler to select at least one transmitting station from the stations by considering the channel state matrices and a number of the receive antennas. The receiver may receive a data stream from the selected transmitting stations. Stations receive identifiers corresponding to transmitting stations and/or transmitting antennas to identify stations or antennas for transmitting data streams to the access point.

摘要翻译： 可以选择数据传输时间间隔和数据发送站的调度器和调度方法包括在多用户多输入多输出（MIMO）通信系统中。 接入点可以包括接收机，用于使用多个接收天线从站接收信道测量信号; 信道估计单元，用于使用所述信道测量信号来生成相对于从所述站到所述接收天线形成的无线信道的信道状态矩阵; 以及调度器，通过考虑信道状态矩阵和多个接收天线来从站中选择至少一个发射台。 接收机可以从所选择的发射台接收数据流。 站点接收与发射站和/或发射天线相对应的标识符，以识别用于向接入点发送数据流的站或天线。

公开(公告)号：US20090225876A1

公开(公告)日：2009-09-10

申请号：US12043354

申请日：2008-03-06

申请人： Dan Keun SUNG ,  Bang Chul Jung ,  Hu Jin ,  Ho Young Hwang

发明人： Dan Keun SUNG ,  Bang Chul Jung ,  Hu Jin ,  Ho Young Hwang

IPC分类号： H04L27/28

CPC分类号： H04L25/0226 ,  H04L1/0045 ,  H04L1/0656 ,  H04L25/0204 ,  H04L27/2613 ,  H04L27/2647

摘要： A multiple-input multiple-output (MIMO) wireless local area network (WLAN) system includes a method for transmitting and receiving data using a MIMO decoding scheme. A method for receiving data includes receiving a preamble from one or more stations via a plurality of receiving antennas, estimating a wireless channel between the station and an access point based on the received preambles, detecting a collision associated with each station based on the received preambles, and decoding the data by referring to a wireless channel estimate if the collision is detected.

摘要翻译： 多输入多输出（MIMO）无线局域网（WLAN）系统包括使用MIMO解码方案发送和接收数据的方法。 一种用于接收数据的方法包括经由多个接收天线从一个或多个站接收前同步信号，基于接收到的前导码估计站与接入点之间的无线信道，基于接收到的前导码检测与每个站相关联的冲突 并且如果检测到冲突，则通过参考无线信道估计来解码数据。

公开(公告)号：US20100103913A1

公开(公告)日：2010-04-29

申请号：US12582190

申请日：2009-10-20

申请人： Dan Keun Sung ,  Bang Chul Jung ,  Jin Hu ,  Ho Young Hwang

发明人： Dan Keun Sung ,  Bang Chul Jung ,  Jin Hu ,  Ho Young Hwang

IPC分类号： H04W84/12 ,  H04L27/28

CPC分类号： H04W74/006 ,  H04W74/0841

摘要： A Multiple-Input Multiple-Output data transmission system includes access stations and an access point having multiple receive antennas. An access point has a minimum contention window size decision unit to determine a minimum contention window size based on the number of receive antennas and a number of access stations, a broadcasting unit to broadcast the determined minimum contention window size to the access stations, and a receiver to receive data from the access stations in a contention window that is calculated based on the minimum contention window size. An access station receives the minimum contention window size from the access point, determines a first contention window size based on the minimum contention window size, and transmits data to the access point within the first contention window. If the transmission fails, the access station determines a second contention window size and retransmits the data in the second contention window.

摘要翻译： 多输入多输出数据传输系统包括接入站和具有多个接收天线的接入点。 接入点具有最小竞争窗口大小决定单元，用于基于接收天线的数量和接入站的数量确定最小竞争窗口大小，广播单元向所述接入站广播所确定的最小竞争窗口大小，以及 接收器，用于在基于最小竞争窗口大小计算的竞争窗口中从接入站接收数据。 访问站从接入点接收最小竞争窗口大小，基于最小竞争窗口大小确定第一竞争窗口大小，并将数据发送到第一争用窗口内的接入点。 如果传输失败，则接入站确定第二争用窗口大小并在第二争用窗口中重发数据。

公开(公告)号：US08279744B2

公开(公告)日：2012-10-02

申请号：US12599463

申请日：2008-05-09

申请人： Dan Keun Sung ,  Bang Chul Jung

发明人： Dan Keun Sung ,  Bang Chul Jung

IPC分类号： H04J11/00 ,  H04B7/185

CPC分类号： H04B7/0814 ,  H04B7/0413 ,  H04B7/061 ,  H04B7/0691

摘要： In a Multiple-Input Multiple-Output (MIMO) wireless local area network (WLAN) system, a method is provided for selecting at least one antenna from a plurality of antennas and transmitting a data frame from a station to an access point via the selected antenna or antennas. A method for transmitting data from a plurality of stations to an access point in the MIMO WLAN system includes detecting a channel status of a channel from the access point to each transmitting antenna of the station, selecting at least one transmitting antenna from among the station's transmitting antennas based on the detected channel status, and transmitting a data frame from the station to the access point via the selected transmitting antenna or antennas.

摘要翻译： 在多输入多输出（MIMO）无线局域网（WLAN）系统中，提供了一种用于从多个天线中选择至少一个天线的方法，并且经由所选择的从站到站将数据帧发送到接入点 天线或天线。 一种从多个站向MIMO WLAN系统中的接入点发送数据的方法，包括：检测从该接入点到该站的每个发射天线的信道的信道状态，从该站的发射中选择至少一个发射天线 基于检测到的信道状态的天线，以及经由所选择的发射天线或天线从站到接入点的数据帧发送。

公开(公告)号：US08094570B2

公开(公告)日：2012-01-10

申请号：US12446440

申请日：2007-10-25

申请人： Dan Keun Sung ,  Bang Chul Jung

发明人： Dan Keun Sung ,  Bang Chul Jung

IPC分类号： H04L1/00

CPC分类号： H04L5/0007 ,  H04L5/0016 ,  H04L5/0048 ,  H04L25/0228 ,  H04L25/067

摘要： There is provided a method in which a second communication station located within a cell region provided by a first communication station transmits data. The method includes generating a hopping pattern between a plurality of orthogonal resources by arranging the plurality of orthogonal resources according to time, generating a transmission signal by mapping a data symbol to orthogonal resources, which are included in the hopping pattern and allocated to a specific timeslot and transmitting the transmission signal to the first communication station. Capacity for supporting multiple access can be increased by effectively utilizing limited wireless communication resources.

摘要翻译： 提供了一种方法，其中位于由第一通信站提供的小区区域内的第二通信站发送数据。 该方法包括通过根据时间排列多个正交资源来产生多个正交资源之间的跳频模式，通过将数据符号映射到正交资源，生成发送信号，该正交资源包括在跳频模式中并被分配给特定时隙 以及将所述发送信号发送到所述第一通信站。 通过有效利用有限的无线通信资源，可以提高支持多路访问的能力。