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1. 发明授权

US08422448B2 Group call control in a wireless broadband communication network 有权
标题翻译：无线宽带通信网络中的组呼呼叫控制
公开(公告)号：US08422448B2
公开(公告)日：2013-04-16
申请号：US12895734
申请日：2010-09-30
申请人： Thomas P. Chu , Tewfik Doumi , Ramesh Nagarajan
发明人： Thomas P. Chu , Tewfik Doumi , Ramesh Nagarajan
IPC分类号： H04W4/00
CPC分类号： H04W76/10 , H04W8/26 , H04W72/00
摘要： A method and system for group call control in a broadband wireless network. A group call (push-to-talk) server initiates and regulates group call communication sessions. A wireless base station communicates with one or more group call participants. When a request to participate in a group call is received, it is examined to see if it contains a group call ID or other group call indicator. If not, regular call resources are allocated, if available. If so, it is determined whether another group member is attached to the base station. Group call resources are then reserved, if available, based on this determination. The resources allocated for the group call may also depend on whether the system supports multicast on the downlink to group members, or whether losing audio is supported. In some embodiments, network resources may be reallocated to support the group call.
摘要翻译：一种宽带无线网络中群组呼叫控制的方法和系统。群组通话（即按即说）服务器启动并调节组通话通话。无线基站与一个或多个群组呼叫参与者进行通信。当接收到参与群组呼叫的请求时，将检查它是否包含一个群组呼叫ID或其他群组呼叫指示符。如果没有，如果可用，将分配正常的呼叫资源。如果是，则确定另一个组成员是否连接到基站。然后根据此确定保留组呼呼叫资源（如果有的话）。为群组呼叫分配的资源还可能取决于系统是否支持下行到组成员的多播，还是支持丢失音频。在一些实施例中，网络资源可以被重新分配以支持组呼。

2. 发明申请

US20120033623A1 Group Call Control In A Wireless Broadband Communication Network 有权
标题翻译：无线宽带通信网络中的组呼呼叫控制
公开(公告)号：US20120033623A1
公开(公告)日：2012-02-09
申请号：US12895734
申请日：2010-09-30
申请人： Thomas P. Chu , Tewfik Doumi , Ramesh Nagarajan
发明人： Thomas P. Chu , Tewfik Doumi , Ramesh Nagarajan
IPC分类号： H04B7/00 , H04W72/04
CPC分类号： H04W76/10 , H04W8/26 , H04W72/00
摘要： A method and system for group call control in a broadband wireless network. A group call (push-to-talk) server initiates and regulates group call communication sessions. A wireless base station communicates with one or more group call participants. When a request to participate in a group call is received, it is examined to see if it contains a group call ID or other group call indicator. If not, regular call resources are allocated, if available. If so, it is determined whether another group member is attached to the base station. Group call resources are then reserved, if available, based on this determination. The resources allocated for the group call may also depend on whether the system supports multicast on the downlink to group members, or whether losing audio is supported. In some embodiments, network resources may be reallocated to support the group call.
摘要翻译：一种宽带无线网络中群组呼叫控制的方法和系统。群组通话（即按即说）服务器启动并调节组通话通话。无线基站与一个或多个群组呼叫参与者进行通信。当接收到参与群组呼叫的请求时，将检查它是否包含一个群组呼叫ID或其他群组呼叫指示符。如果没有，如果可用，将分配正常的呼叫资源。如果是，则确定另一个组成员是否连接到基站。然后根据此确定保留组呼呼叫资源（如果有的话）。为群组呼叫分配的资源还可能取决于系统是否支持下行到组成员的多播，还是支持丢失音频。在一些实施例中，网络资源可以被重新分配以支持组呼。

3. 发明授权

US10084856B2 Method and apparatus for locating services within peer-to-peer networks 有权
公开(公告)号：US10084856B2
公开(公告)日：2018-09-25
申请号：US12640072
申请日：2009-12-17
申请人： Thomas P. Chu , Ramesh Nagarajan
发明人： Thomas P. Chu , Ramesh Nagarajan
IPC分类号： G06F17/30 , H04L29/08
CPC分类号： H04L67/104 , H04L67/1065 , H04L67/107 , H04L67/16
摘要： A capability is provided for supporting a service location capability in a peer-to-peer network (P2P), such as a Chord network or other P2P network. In one embodiment, a method for locating a service within a P2P network is provided. The P2P network includes a plurality of nodes, including a target node which performs the method for locating the service within the P2P network. The target node includes a search table including a plurality of entries identifying a respective plurality of nodes of the P2P network. The method includes detecting a request to search for the service within the P2P network and initiating, toward at least one of the nodes of the search table, a service search request. The service search request is a request to identify at least one node of the P2P network that supports the service. The service search request includes information indicative of the service and a search range for use by the node receiving the service search request.

4. 发明申请

US20100020726A1 AUTOMATICALLY CONFIGURING MESH GROUPS IN DATA NETWORKS 有权
标题翻译：在数据网络中自动配置MESH组
公开(公告)号：US20100020726A1
公开(公告)日：2010-01-28
申请号：US12179855
申请日：2008-07-25
申请人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
发明人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L12/462 , H04L45/02 , H04L45/122 , H04L45/48
摘要： In one embodiment, a method for setting up a flow-through mesh group (FTMG) for transmitting link-state packets (LSPs) in a network having a plurality of nodes interconnected by links. The FTMG is a combination of multiple spanning trees for the network through which LSPs are forwarded. FTMG set-up messages are received at ports of each node of the network from peer ports of linked nodes. FTMG set-up messages identify root nodes of the multiple spanning trees and the transmission modes of the peer ports. The FTMG set-up messages are used to determine (1) a root node for each spanning tree, (2) a root port on each node for each spanning tree, and (3) directionality of ports of the nodes. FTMG set-up messages are then used to determine the transmission mode of ports of the nodes and, subsequently, to update the spanning trees and transmission modes, as needed.
摘要翻译：在一个实施例中，一种用于建立用于在具有通过链路互连的多个节点的网络中发送链路状态分组（LSP）的流通网状组（FTMG）的方法。 FTMG是通过LSP转发的网络的多个生成树的组合。 FTMG建立消息从链接节点的对端口接收到网络的每个节点的端口。 FTMG建立消息标识了多个生成树的根节点和对端口的传输模式。 FTMG建立消息用于确定（1）每个生成树的根节点，（2）每个生成树的每个节点上的根端口，以及（3）节点端口的方向性。然后，FTMG建立消息用于确定节点的端口的传输模式，并且随后根据需要更新生成树和传输模式。

5. 发明申请

US20110153737A1 METHOD AND APPARATUS FOR DECOMPOSING A PEER-TO-PEER NETWORK AND USING A DECOMPOSED PEER-TO-PEER NETWORK 审中-公开
标题翻译：用于分解对等网络并使用分解的对等网络的方法和装置
公开(公告)号：US20110153737A1
公开(公告)日：2011-06-23
申请号：US12640049
申请日：2009-12-17
申请人： Thomas P. Chu , Ramesh Nagarajan
发明人： Thomas P. Chu , Ramesh Nagarajan
IPC分类号： G06F15/16
CPC分类号： H04L67/104 , H04L67/1046 , H04L67/107 , H04L67/1076 , H04L67/2861
摘要： A capability is provided for decomposing a P2P network into a plurality of sub-networks and, further, for using the decomposed P2P network. A P2P network is decomposed to form a plurality of sub-networks, where each of the sub-networks is a P2P network. A P2P network may be decomposed into sub-networks based on one or more decomposition criteria (e.g., geographic location, community of interest, and the like, as well as various combinations thereof). The decomposition of the P2P network is encoded in a network map. A node may use the network map to join the decomposed P2P network. A node may join one, some, or all of the sub-networks. The sub-networks of a decomposed P2P network may be arranged in any suitable number of hierarchical levels.
摘要翻译：提供了一种用于将P2P网络分解成多个子网络的能力，并且还用于使用分解的P2P网络。 P2P网络被分解以形成多个子网络，其中每个子网络是P2P网络。基于一个或多个分解标准（例如，地理位置，感兴趣的社区等，以及其各种组合），P2P网络可以被分解成子网络。 P2P网络的分解在网络地图中进行编码。节点可以使用网络映射来加入分解的P2P网络。节点可以加入一个，一些或全部子网。分解的P2P网络的子网络可以以任何合适数量的层级排列。

6. 发明授权

US07778204B2 Automatic maintenance of a distributed source tree (DST) network 有权
标题翻译：自动维护分布式源树（DST）网络
公开(公告)号：US07778204B2
公开(公告)日：2010-08-17
申请号：US12179872
申请日：2008-07-25
申请人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
发明人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
IPC分类号： H04L12/28
CPC分类号： H04L41/12
摘要： In one embodiment, an automatically maintained, distributed source tree (DST) network has a plurality of fully connected internal nodes. One or more internal nodes may be connected to one or more external nodes. A first internal node synchronizes its link-state database with another internal node by sending and receiving respective Reduced Sequence Number Packet-Data-Units (PDUs) (RSNPs). An RSNP includes summary information for link-state packets (LSPs) (1) originated by the first internal node, (2) received by the first internal node from the other internal node, and (3) received from and/or originated by external nodes. If an internal link fails, then the corresponding end-nodes may recover and maintain automatic DST operation by entering either relay-mode or switch-mode operation. In relay-mode operation, an end-node tunnels packets to the other end-node via an intermediary node. In switch-mode operation, an intermediary node is selected to forward packets from one end-node to the other end-node.
摘要翻译：在一个实施例中，自动维护的分布式源树（DST）网络具有多个完全连接的内部节点。一个或多个内部节点可以连接到一个或多个外部节点。第一内部节点通过发送和接收相应的减少序列号分组数据单元（PDU）（RSNP）来将其链路状态数据库与另一内部节点同步。 RSNP包括由第一内部节点发起的链路状态分组（LSP）（1），（2）由第一内部节点从另一个内部节点接收的摘要信息，以及（3）从外部接收和/或发起的节点。如果内部链路发生故障，则相应的终端节点可以通过进入中继模式或切换模式操作来恢复和维护自动DST操作。在中继模式操作中，终端节点经由中间节点将分组隧道传送到另一终端节点。在交换模式操作中，选择中间节点将分组从一个终端节点转发到另一个终端节点。

7. 发明授权

US07787399B2 Automatically configuring mesh groups in data networks 有权
标题翻译：在数据网络中自动配置网格组
公开(公告)号：US07787399B2
公开(公告)日：2010-08-31
申请号：US12179855
申请日：2008-07-25
申请人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
发明人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L45/02 , H04L45/122 , H04L45/48
摘要： In one embodiment, a method for setting up a flow-through mesh group (FTMG) for transmitting link-state packets (LSPs) in a network having a plurality of nodes interconnected by links. The FTMG is a combination of multiple spanning trees for the network through which LSPs are forwarded. FTMG set-up messages are received at ports of each node of the network from peer ports of linked nodes. FTMG set-up messages identify root nodes of the multiple spanning trees and the transmission modes of the peer ports. The FTMG set-up messages are used to determine (1) a root node for each spanning tree, (2) a root port on each node for each spanning tree, and (3) directionality of ports of the nodes. FTMG set-up messages are then used to determine the transmission mode of ports of the nodes and, subsequently, to update the spanning trees and transmission modes, as needed.
摘要翻译：在一个实施例中，一种用于建立用于在具有通过链路互连的多个节点的网络中发送链路状态分组（LSP）的流通网状组（FTMG）的方法。 FTMG是通过LSP转发的网络的多个生成树的组合。 FTMG建立消息从链接节点的对端口接收到网络的每个节点的端口。 FTMG建立消息标识了多个生成树的根节点和对端口的传输模式。 FTMG建立消息用于确定（1）每个生成树的根节点，（2）每个生成树的每个节点上的根端口，以及（3）节点端口的方向性。然后，FTMG建立消息用于确定节点的端口的传输模式，并且随后根据需要更新生成树和传输模式。

8. 发明申请

US20110299427A1 METHOD AND APPARATUS FOR DISTRIBUTED MEDIA CONFERENCING 审中-公开
标题翻译：分布式媒体会议的方法和装置
公开(公告)号：US20110299427A1
公开(公告)日：2011-12-08
申请号：US13202790
申请日：2009-04-14
申请人： Thomas P Chu , Ramesh Nagarajan
发明人： Thomas P Chu , Ramesh Nagarajan
IPC分类号： H04L12/44
CPC分类号： H04L65/4076 , H04L12/1822 , H04L12/185 , H04L12/1854 , H04L65/403
摘要： A capability for determining a media distribution tree for use in distributing content to a plurality of user devices is provided. Using the distributed content distribution capability, one or more of the user devices to which the content is to be distributed functions as a relay point that performs content replication and distribution functions for one or more other user devices. The content is distributed using a media distribution tree into which the user devices are arranged. A method for determining a media distribution tree for use in distributing content to a plurality of user devices includes grouping the user devices into a plurality of regions, determining, for each of the regions, a regional tree to be formed by the user devices grouped into the region, and connecting the regional trees to determine thereby the media distribution tree. By utilizing user devices as relay points within the media distribution tree, usage of network resources, such as ports at media servers, is significantly reduced.
摘要翻译：提供了一种用于确定用于向多个用户设备分发内容的媒体分发树的能力。使用分布式内容分发能力，将要分发内容的一个或多个用户设备用作为一个或多个其他用户设备执行内容复制和分发功能的中继点。内容是使用用户设备布置在其中的媒体分发树来分发的。用于确定用于向多个用户设备分发内容的媒体分发树的方法包括将用户设备分组成多个区域，为每个区域确定要由分组成的用户设备形成的区域树并连接区域树，从而确定媒体分布树。通过利用用户设备作为媒体分发树中的中继点，网络资源（如媒体服务器端口）的使用显着降低。

9. 发明申请

US20110153634A1 METHOD AND APPARATUS FOR LOCATING SERVICES WITHIN PEER-TO-PEER NETWORKS 审中-公开
标题翻译：用于在对等网络中定位服务的方法和装置
公开(公告)号：US20110153634A1
公开(公告)日：2011-06-23
申请号：US12640072
申请日：2009-12-17
申请人： Thomas P. Chu , Ramesh Nagarajan
发明人： Thomas P. Chu , Ramesh Nagarajan
IPC分类号： G06F17/30
CPC分类号： H04L67/104 , H04L67/1065 , H04L67/107 , H04L67/16
摘要： A capability is provided for supporting a service location capability in a peer-to-peer network (P2P), such as a Chord network or other P2P network. In one embodiment, a method for locating a service within a P2P network is provided. The P2P network includes a plurality of nodes, including a target node which performs the method for locating the service within the P2P network. The target node includes a search table including a plurality of entries identifying a respective plurality of nodes of the P2P network. The method includes detecting a request to search for the service within the P2P network and initiating, toward at least one of the nodes of the search table, a service search request. The service search request is a request to identify at least one node of the P2P network that supports the service. The service search request includes information indicative of the service and a search range for use by the node receiving the service search request.
摘要翻译：提供了用于支持诸如Chord网络或其他P2P网络的对等网络（P2P）中的服务定位能力的能力。在一个实施例中，提供了一种用于定位P2P网络内的服务的方法。 P2P网络包括多个节点，包括执行在P2P网络内定位服务的方法的目标节点。目标节点包括搜索表，其包括标识P2P网络的相应多个节点的多个条目。所述方法包括：检测在所述P2P网络内搜索所述服务的请求，并向所述搜索表的所述节点中的至少一个发起服务搜索请求。服务搜索请求是识别支持该服务的P2P网络的至少一个节点的请求。服务搜索请求包括指示服务的信息和由接收服务搜索请求的节点使用的搜索范围。

10. 发明申请

US20100020719A1 AUTOMATIC MAINTENANCE OF A DISTRIBUTED SOURCE TREE (DST) NETWORK 有权
标题翻译：分布式资源树（DST）网络的自动维护
公开(公告)号：US20100020719A1
公开(公告)日：2010-01-28
申请号：US12179872
申请日：2008-07-25
申请人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
发明人： Thomas P. Chu , Ramesh Nagarajan , Yung-Terng Wang
IPC分类号： H04L12/24
CPC分类号： H04L41/12
摘要： In one embodiment, an automatically maintained, distributed source tree (DST) network has a plurality of fully connected internal nodes. One or more internal nodes may be connected to one or more external nodes. A first internal node synchronizes its link-state database with another internal node by sending and receiving respective Reduced Sequence Number Packet-Data-Units (PDUs) (RSNPs). An RSNP includes summary information for link-state packets (LSPs) (1) originated by the first internal node, (2) received by the first internal node from the other internal node, and (3) received from and/or originated by external nodes. If an internal link fails, then the corresponding end-nodes may recover and maintain automatic DST operation by entering either relay-mode or switch-mode operation. In relay-mode operation, an end-node tunnels packets to the other end-node via an intermediary node. In switch-mode operation, an intermediary node is selected to forward packets from one end-node to the other end-node.
摘要翻译：在一个实施例中，自动维护的分布式源树（DST）网络具有多个完全连接的内部节点。一个或多个内部节点可以连接到一个或多个外部节点。第一内部节点通过发送和接收相应的减少序列号分组数据单元（PDU）（RSNP）来将其链路状态数据库与另一内部节点同步。 RSNP包括由第一内部节点发起的链路状态分组（LSP）（1），（2）由第一内部节点从另一个内部节点接收的摘要信息，以及（3）从外部接收和/或发起的节点。如果内部链路发生故障，则相应的终端节点可以通过进入中继模式或切换模式操作来恢复和维护自动DST操作。在中继模式操作中，终端节点经由中间节点将分组隧道传送到另一终端节点。在交换模式操作中，选择中间节点将分组从一个终端节点转发到另一个终端节点。

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