公开(公告)号：US20100226243A1

公开(公告)日：2010-09-09

申请号：US12717534

申请日：2010-03-04

申请人： Sangwoo LEE ,  Hyun Seo Oh ,  June Koo Rhee ,  Yonghwan Bang ,  Dujeong Lee

发明人： Sangwoo LEE ,  Hyun Seo Oh ,  June Koo Rhee ,  Yonghwan Bang ,  Dujeong Lee

IPC分类号： H04W28/04

CPC分类号： H04L1/1845 ,  H04L1/1819 ,  H04L1/1867 ,  H04L2001/0093

摘要： The present invention provides a method and apparatus for multicast transmission of a transmitting station in a wireless network. The method according to the present invention transmits a plurality of data packets to a plurality of receiving stations, receives information on loss of the plurality of the data packets from at least one of the plurality of the receiving stations, codes the plurality of the data packets into a single coded data packet based on the information on the loss of the plurality of the data packets and transmits an error control frame including the coded data packet to the plurality of the receiving stations. Therefore, when an error occurs at a data packet that a transmitting station transmits to a plurality of receiving stations by a multicast transmission, a number of retransmission of the data packet can be reduced.

摘要翻译： 本发明提供了一种用于无线网络中的发射台的组播传输的方法和装置。 根据本发明的方法将多个数据分组发送到多个接收站，从多个接收站中的至少一个接收关于多个数据分组丢失的信息，对多个数据分组进行编码 基于关于多个数据分组的丢失的信息将其转换为单个编码数据分组，并将包括编码数据分组的错误控制帧发送到多个接收站。 因此，当发送站通过多播传输向多个接收站发送的数据分组发生错误时，可以减少数据分组的重传次数。

公开(公告)号：US20060030366A1

公开(公告)日：2006-02-09

申请号：US11246098

申请日：2005-10-11

申请人： Hyeong Geun Park ,  Hyun Seo Oh ,  Mun Geon Kyeong

发明人： Hyeong Geun Park ,  Hyun Seo Oh ,  Mun Geon Kyeong

IPC分类号： H04M1/00

CPC分类号： H04B7/0408 ,  G01S3/30 ,  H04B7/0617

摘要： Disclosed are an apparatus for forward beamforming using a terminal feedback and a method thereof. The base station estimates an angle of arrival (AOA) range of a user signal from reverse link received data and calculates a plurality of beamforming weights steering the estimated AOA range. Then, the base station transmits a user pilot signal by sequentially using the plurality of beamforming weights at different time areas through a control channel to estimate a forward channel conditions. A terminal calculates the user pilot signal power for all fingers at the respective time areas and feeds a time area number corresponding to the greatest power back to the base station. The base station transmits a data channel signal using a beamforming weight corresponding to the time area number fed back from the terminal.

公开(公告)号：US08717991B2

公开(公告)日：2014-05-06

申请号：US13209830

申请日：2011-08-15

申请人： Jong Min Park ,  Sangwoo Lee ,  Min Jung Kim ,  Hyun Kyun Choi ,  Hyun Seo Oh

发明人： Jong Min Park ,  Sangwoo Lee ,  Min Jung Kim ,  Hyun Kyun Choi ,  Hyun Seo Oh

IPC分类号： H04W4/04

CPC分类号： H04W72/10

摘要： In a vehicle communication system, a multi channel operation apparatus for communication of a vehicle or a road side base station operates a multi channel in one physical layer and differentially transmits a frame through a corresponding channel according to a user priority order value of a frame to transmit.

摘要翻译： 在车辆通信系统中，用于车辆或道路侧基站的通信的多信道操作装置在一个物理层中操作多个信道，并且根据帧的用户优先级顺序值通过相应的信道差分地发送帧到 发送。

公开(公告)号：US08570930B2

公开(公告)日：2013-10-29

申请号：US12949362

申请日：2010-11-18

申请人： Min Jung Kim ,  Sangwoo Lee ,  Hyun Kyun Choi ,  Han Byeog Cho ,  Hyun Seo Oh

发明人： Min Jung Kim ,  Sangwoo Lee ,  Hyun Kyun Choi ,  Han Byeog Cho ,  Hyun Seo Oh

IPC分类号： H04Q7/00

CPC分类号： H04W40/20 ,  H04W40/026 ,  H04W40/24

摘要： In order for a source node including a vehicle multihop protocol unicast apparatus to route data to a destination node, the source node broadcasts a location request message to neighbor node and receives a location response message from the neighbor nodes in response to the location request message. Therefore, the source node routes unicast data on the basis of the location information of the destination node included in the location response message. At this time, the source node uses a location based forwarder selecting algorithm in order to select a forwarder.

摘要翻译： 为了使包括车辆多跳协议单播装置的源节点将数据路由到目的地节点，源节点向邻居节点广播位置请求消息，并响应于位置请求消息从邻居节点接收位置响应消息。 因此，源节点根据位置响应消息中包含的目的地节点的位置信息来路由单播数据。 此时，源节点使用基于位置的转发器选择算法来选择转发器。

公开(公告)号：US08543155B2

公开(公告)日：2013-09-24

申请号：US13195365

申请日：2011-08-01

申请人： Sangwoo Lee ,  Hyun Kyun Choi ,  Hyun Seo Oh

发明人： Sangwoo Lee ,  Hyun Kyun Choi ,  Hyun Seo Oh

IPC分类号： H04B7/00

CPC分类号： H04W36/00 ,  H04W36/18 ,  H04W74/00

摘要： A first roadside equipment operates as a transmitting/receiving mode in a control channel interval of an Nth synchronization interval so as to support a handover. In this instance, a second roadside equipment neighboring to the first roadside equipment operates as a receiving mode in the control channel interval of the Nth synchronization interval. The first roadside equipment operates as the receiving mode in a control channel interval of an (N+1)th synchronization interval. In this instance, the second roadside equipment operates as the transmitting/receiving mode in the control channel interval of the (N+1)th synchronization interval.

摘要翻译： 第一路边设备在第N个同步间隔的控制信道间隔中作为发送/接收模式工作，以支持切换。 在这种情况下，与第一路边设备相邻的第二路边设备在第N个同步间隔的控制信道间隔中作为接收模式进行操作。 第一路边设备在第（N + 1）同步间隔的控制信道间隔中作为接收模式进行操作。 在这种情况下，第二路边设备作为第（N + 1）同步间隔的控制信道间隔中的发送/接收模式。

公开(公告)号：US08873573B2

公开(公告)日：2014-10-28

申请号：US13471421

申请日：2012-05-14

申请人： Sangwoo Lee ,  Han Byeog Cho ,  Hyun Kyun Choi ,  Hyun Seo Oh ,  Sunghwan Moon ,  Minseok Kim ,  Jong-Moon Chung ,  Dong-Sun Lim

发明人： Sangwoo Lee ,  Han Byeog Cho ,  Hyun Kyun Choi ,  Hyun Seo Oh ,  Sunghwan Moon ,  Minseok Kim ,  Jong-Moon Chung ,  Dong-Sun Lim

IPC分类号： H04B7/212 ,  H04L12/43 ,  H04W72/12 ,  H04W84/18 ,  H04W40/20

CPC分类号： H04W72/1252 ,  H04W40/20 ,  H04W84/18

摘要： In a wireless multi-hop network, a transmission scheduling apparatus calculates a transmission demand of every node within the wireless multi-hop network, and allocates a time slot to each node by using the transmission demand of each node.

摘要翻译： 在无线多跳网络中，传输调度装置计算无线多跳网络内的每个节点的传输需求，并且通过使用每个节点的传输需求为每个节点分配时隙。

公开(公告)号：US20110134840A1

公开(公告)日：2011-06-09

申请号：US12949362

申请日：2010-11-18

申请人： Min Jung KIM ,  Sangwoo Lee ,  Hyun Kyun Choi ,  Han Byeog Cho ,  Hyun Seo Oh

发明人： Min Jung KIM ,  Sangwoo Lee ,  Hyun Kyun Choi ,  Han Byeog Cho ,  Hyun Seo Oh

IPC分类号： H04W40/00

CPC分类号： H04W40/20 ,  H04W40/026 ,  H04W40/24

摘要： In order for a source node including a vehicle multihop protocol unicast apparatus to route data to a destination node, the source node broadcasts a location request message to neighbor node and receives a location response message from the neighbor nodes in response to the location request message. Therefore, the source node routs unicast data on the basis of the location information of the destination node included in the location response message. At this time, the source node uses a location based forwarder selecting algorithm in order to select a forwarder.

摘要翻译： 为了使包括车辆多跳协议单播装置的源节点将数据路由到目的地节点，源节点向邻居节点广播位置请求消息，并响应于位置请求消息从邻居节点接收位置响应消息。 因此，源节点基于位置响应消息中包括的目的地节点的位置信息来路由单播数据。 此时，源节点使用基于位置的转发器选择算法来选择转发器。

公开(公告)号：US07340282B2

公开(公告)日：2008-03-04

申请号：US11246098

申请日：2005-10-11

申请人： Hyeong Geun Park ,  Hyun Seo Oh ,  Mun Geon Kyeong

发明人： Hyeong Geun Park ,  Hyun Seo Oh ,  Mun Geon Kyeong

IPC分类号： H04M1/00 ,  H04B1/00

CPC分类号： H04B7/0408 ,  G01S3/30 ,  H04B7/0617

摘要： Disclosed are an apparatus for forward beamforming using a terminal feedback and a method thereof. The base station estimates an angle of arrival (AOA) range of a user signal from reverse link received data and calculates a plurality of beamforming weights steering the estimated AOA range. Then, the base station transmits a user pilot signal by sequentially using the plurality of beamforming weights at different time areas through a control channel to estimate a forward channel conditions. A terminal calculates the user pilot signal power for all fingers at the respective time areas and feeds a time area number corresponding to the greatest power back to the base station. The base station transmits a data channel signal using a beamforming weight corresponding to the time area number fed back from the terminal.

摘要翻译： 公开了一种使用终端反馈进行前向波束成形的装置及其方法。 基站估计来自反向链路接收数据的用户信号的到达角（AOA）范围，并计算指导估计的AOA范围的多个波束成形权重。 然后，基站通过控制信道通过在不同的时间区域顺序使用多个波束形成权重来发送用户导频信号，以估计前向信道条件。 终端计算各个时间区域中所有手指的用户导频信号功率，并将与最大功率相对应的时区数量反馈给基站。 基站使用对应于从终端反馈的时间区域号的波束形成权重发送数据信道信号。

公开(公告)号：US06832073B2

公开(公告)日：2004-12-14

申请号：US10125555

申请日：2002-04-19

申请人： Il-Soon Jang ,  Deuk Su Lyu ,  Hyun Seo Oh ,  Hyoung-Goo Jeon

发明人： Il-Soon Jang ,  Deuk Su Lyu ,  Hyun Seo Oh ,  Hyoung-Goo Jeon

IPC分类号： H04B1700

CPC分类号： H04B1/7097 ,  H04B1/71075 ,  H04B7/022 ,  H04B2201/70701 ,  H04B2201/70702

摘要： An apparatus and method for canceling pilot signals from neighbor base stations is disclosed. The present invention cancels unnecessary pilot signals transmitted from the neighbor base stations by detecting, analyzing a PN signal in a pilot signal of each base station, generating estimated interference signal according to analyzed information from the detected PN signal and subtracting estimated interference signal from the received signal. Therefore, the present invention increases a bandwidth of downlink transmission channel and improves the demodulator to be operatable in low signal-to-noise ratio (Eb/No).

摘要翻译： 公开了一种用于从相邻基站取消导频信号的装置和方法。 本发明通过检测分析每个基站的导频信号中的PN信号，根据来自检测到的PN信号的分析信息产生估计干扰信号并从接收到的信号中减去所估计的干扰信号来消除从相邻基站发送的不必要的导频信号 信号。 因此，本发明增加了下行链路传输信道的带宽，并使解调器在低信噪比（Eb / No）下可操作。