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公开(公告)号：EP2183930B1
公开(公告)日：2018-09-05
申请号：EP08782255.7
申请日：2008-07-23
发明人： CHEN, Wai , LEE, John , GUHA, Ratul, K. , ONISHI, Ryokichi , VUYYURU, Rama
摘要： The present invention offers systems and methods for effective multiple-hop routing, multicasting and media access control for vehicle group communications that employ directional wireless radio technology. Multi-beam optic-wireless media and streamlined operations provide low-overhead communications among vehicles. Systems and methods are provided to maintain a quasi-stationary group of neighboring vehicles, enable high-throughput on-demand switching among multiple vehicles, enable group coding in the vehicle group to achieve higher throughput, and enable dynamic adjustment of link to maintain desirable vehicle group. The proposed solution builds upon the conception of a MAC-free wireless operation and quasi-stationary vehicular switched network to achieve ultra-low-overhead and high-throughput vehicle communications.
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12.发明授权ADAPTATION PROTOCOLS FOR LOCAL PEER GROUP (LPG) NETWORKS IN DYNAMIC ROADWAY ENVIRONMENTS 有权适应协议本地对等群组（LPG）网络在动态环境ROAD
公开(公告)号：EP2507946B1
公开(公告)日：2017-03-08
申请号：EP10835020.8
申请日：2010-12-01
发明人： CHEN, Wai , KWON, Taek-jin , ONISHI, Ryokichi , VUYYURU, Rama
IPC分类号： H04L12/26 , H04L12/721 , H04L12/741 , H04L12/771 , H04W40/32
CPC分类号： H04L43/10 , H04L43/0864 , H04L45/26 , H04L45/54 , H04W40/32
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公开(公告)号：EP2215780B1
公开(公告)日：2015-01-07
申请号：EP08849395.2
申请日：2008-11-12
发明人： CHEN, Wai , DEMERS, Stephanie , LEE, John , PANG, Marcus , ONISHI, Ryokichi , HIKITA, Toshiro
CPC分类号： H04H20/08 , H04H20/57 , H04H60/50 , H04H60/53 , H04L12/1868 , H04L12/189 , H04L45/16 , H04W40/20
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公开(公告)号：EP2406780A1
公开(公告)日：2012-01-18
申请号：EP09841635.7
申请日：2009-06-01
IPC分类号： G08G1/09
摘要： A method for transmitting data in vehicular network comprising determining a communication window between at least two nodes, grouping a plurality of fragments of content together into an aggregate fragment block, forwarding the aggregate fragment block to a target node and assembling the plurality of fragments into the content. The content is divided into the plurality of fragments. A fragment signature is generated for the fragments that contain fragment index information regarding each fragment. Each fragment is unambiguously identified by its signature. A number of fragments grouped into the aggregate fragment block is dependent on the communication window.
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15.发明公开METHODS FOR EFFICIENT ORGANIZATION OF VEHICLE PEER GROUPS AND EFFICIENT V2R COMMUNICATIONS 有权METHOD FOR车辆等组和高效的组织高效V2R通信
公开(公告)号：EP2283585A1
公开(公告)日：2011-02-16
申请号：EP09747264.1
申请日：2009-05-11
发明人： CHEN, Wai , KWON, Taek, Jin , LEE, John , ONISHI, Ryokichi , HIKITA, Toshiro
IPC分类号： H04B7/005
CPC分类号： H04W40/30 , H04L45/00 , H04L45/20 , H04L45/48 , H04W40/246
摘要： The present invention provides methods for efficient control message distribution in a VANET. Efficient flooding mechanisms are provided to fulfill the objective of flooding (delivering a message to every connected node) with a limited number of re-broadcasting by selected key nodes. A suppression-based efficient flooding mechanism utilizes a Light Suppression (LS) technique to reduce the number of flooding relays by giving up the broadcasting of a flooding message when a node observes downstream relay of the same flooding message. Additionally, a relay-node based efficient flooding mechanism selects Relay Nodes (RN) to form an efficient flooding tree for control message delivery. RNs are nodes that relay at least one control message, for instance a Membership Report (MR) to the upstream node in "k" previous control message cycles. The upstream node may be the group header (GH) for the LPG.
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公开(公告)号：EP2406780B1
公开(公告)日：2018-08-08
申请号：EP09841635.7
申请日：2009-06-01
IPC分类号： H04W28/06 , H04L12/805 , G08G1/09 , G08G1/00
摘要： A method for transmitting data in vehicular network comprising determining a communication window between at least two nodes, grouping a plurality of fragments of content together into an aggregate fragment block, forwarding the aggregate fragment block to a target node and assembling the plurality of fragments into the content. The content is divided into the plurality of fragments. A fragment signature is generated for the fragments that contain fragment index information regarding each fragment. Each fragment is unambiguously identified by its signature. A number of fragments grouped into the aggregate fragment block is dependent on the communication window.
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