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29 条记录 (耗时 0.022 秒)

    Method and apparatus for multicast transmission in wireless network
    1.
    发明授权
    Method and apparatus for multicast transmission in wireless network 失效
    无线网络中组播传输的方法和装置

    公开(公告)号：US08284680B2

    公开(公告)日：2012-10-09

    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： H04L12/26

    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。

    METHOD AND APPARATUS FOR MULTICAST TRANSMISSION IN WIRELESS NETWORK
    2.
    发明申请
    METHOD AND APPARATUS FOR MULTICAST TRANSMISSION IN WIRELESS NETWORK 失效
    无线网络中多播传输的方法与装置

    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。

    CHANNEL ACCESS METHOD FOR VEHICLE COMMUNICATION HANDOVER
    4.
    发明申请
    CHANNEL ACCESS METHOD FOR VEHICLE COMMUNICATION HANDOVER 有权
    用于车辆通信切换的信道接入方法

    公开(公告)号：US20120028675A1

    公开(公告)日：2012-02-02

    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： H04W36/00

    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。

    CHANNEL ALLOCATION DEVICE AND METHOD USING WIRELESS ACCESS IN VEHICULAR ENVIROMENTS
    5.
    发明申请
    CHANNEL ALLOCATION DEVICE AND METHOD USING WIRELESS ACCESS IN VEHICULAR ENVIROMENTS 有权
    信道分配设备和使用无线接入在车辆环境中的方法

    公开(公告)号：US20110306353A1

    公开(公告)日：2011-12-15

    申请号：US12984837

    申请日：2011-01-05

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

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

    IPC分类号： H04W72/06

    CPC分类号： H04W48/18 ,  H04W72/06 ,  H04W72/10

    摘要： A device for allocating a channel by using wireless access in a vehicular environment in which an onboard unit is provided in a vehicle and at least one roadside unit is provided, receives a service announcement message from at least one roadside unit, uses the service announcement message to generate an available service table, determines whether the available service table has roadside unit entries for transmitting the service announcement message, and if so, compares average RSSI provided by the roadside units to select a roadside unit to access, selects a channel that corresponds to the service provider ID with the highest priority from among the service provided by the selected roadside unit, and assigns the selected channel as a service channel to exchange information with the roadside unit.

    摘要翻译： 一种用于通过在车辆中提供车载单元的车辆环境中使用无线接入和至少一个路侧单元来分配频道的设备，从至少一个路侧单元接收服务通知消息，使用服务通知消息 生成可用服务表，确定可用服务表是否具有用于发送服务通知消息的路侧单元条目，如果是，则比较由路边单元提供的平均RSSI以选择要接入的路侧单元，选择对应于 从所选择的路侧单元提供的服务中具有最高优先级的服务提供商ID，并且将所选择的频道分配为服务信道以与路侧单元交换信息。

    Method of generating signal for supporting vehicle communication handover
    7.
    发明授权
    Method of generating signal for supporting vehicle communication handover 有权
    产生用于支持车辆通信切换的信号的方法

    公开(公告)号：US08675603B2

    公开(公告)日：2014-03-18

    申请号：US12984830

    申请日：2011-01-05

    申请人： Sangwoo Lee ,  Min Jung Kim ,  Woong Cho ,  Hyun Seo Oh

    发明人： Sangwoo Lee ,  Min Jung Kim ,  Woong Cho ,  Hyun Seo Oh

    IPC分类号： H04W4/00

    CPC分类号： H04W36/08

    摘要： When supporting the handover from first road side equipment of a plurality of sets of road side equipment and second road side equipment that is adjacent to the first road side equipment to a vehicle, the first road side equipment generates a first channel seizing signal that is longer than that of the second road side equipment in a control channel of an N-th sync interval. The second road side equipment generates a second channel seizing signal that is longer than that of the first road side equipment in a control channel of an (N+1)-th sync interval.

    摘要翻译： 在从车辆的第一道路侧设备的多组路侧设备的第一路侧设备和第二道路侧设备向车辆支持切换时，第一道路侧设备生成更长的第一路段占用信号 比第N次同步间隔的控制信道中的第二路侧设备。 第二路侧设备在第（N + 1）同步间隔的控制信道中产生比第一路侧设备的长的第二信道占用信号。

    Location based vehicle multihop protocol unicast apparatus and routing method using the apparatus
    8.
    发明授权
    Location based vehicle multihop protocol unicast apparatus and routing method using the apparatus 有权
    基于位置的车辆多跳协议单播设备和使用该设备的路由方法

    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。

    Channel access method for vehicle communication handover
    9.
    发明授权
    Channel access method for vehicle communication handover 有权
    用于车辆通信切换的信道接入方法

    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。