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1. 发明申请

WO2016205765A1 APPROACHES FOR HIGH SPEED GLOBAL PACKET DATA SERVICES LEO/MEO SATELLITE SYSTEMS 审中-公开
标题翻译：高速全球分组数据服务的方法LEO / MEO卫星系统
公开(公告)号：WO2016205765A1
公开(公告)日：2016-12-22
申请号：PCT/US2016/038260
申请日：2016-06-17
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： RAVISHANKAR, Channasandra , CORRIGAN, John , GOPAL, Rajeev , VASAVADA, Yash , JONG, James , BENAMMAR, Nassir , ZAKARIA, Gaguk , NOERPEL, Anthony , RAMCHANDRAN, Harish , HUANG, Xiaoling
IPC分类号： H04W4/00
CPC分类号： H04W84/06 , H04B7/18563 , H04W84/042 , H04W88/085 , H04W92/045
摘要： A satellite system comprises LEO satellites and MEO satellites, and a control plane protocol architecture. The PHY, MAC, MAC/RLC and RRC layers are optimized for satellite environment. When the satellites are not processing satellites, eNB functions are implemented in a satellite gateway, and, when the satellites are processing satellites, protocol architecture in the control plane differ from LTE, as follows: PHY layer is moved to the communicating LEO/MEO satellite on the user link, MAC/RLC, RRC and PDCP are be located in satellite or gateway depending on satellite complexity, and the need to have mesh connectivity between UTs. When the RRC is implemented in the satellite, the RRC is divided into RRC-Lower and RRC-Upper layers. The RRC-L is satellite-based, and handles UT handover. The RRC-U is eNB-based, and handles resource management functions. The RRC-U communicates with the PDCP layer in the eNB to configure security, header and data compression.
摘要翻译：卫星系统包括LEO卫星和MEO卫星，以及控制平面协议架构。 PHY，MAC，MAC / RLC和RRC层针对卫星环境进行了优化。当卫星不处理卫星时，eNB功能在卫星网关中实现，并且当卫星处理卫星时，控制平面中的协议架构与LTE不同，如下所述：PHY层被移动到通信的LEO / MEO卫星在用户链路上，根据卫星复杂度，MAC / RLC，RRC和PDCP位于卫星或网关中，并且需要在UT之间具有网格连接。当在卫星中实现RRC时，RRC被划分为RRC-Lower和RRC-Upper层。 RRC-L是基于卫星的，并且处理UT切换。 RRC-U是基于eNB的，并且处理资源管理功能。 RRC-U与eNB中的PDCP层进行通信，以配置安全性，头部和数据压缩。

2. 发明申请

WO2021061871A1 NEXT GENERATION GLOBAL SATELLITE SYSTEM WITH MEGA-CONSTELLATIONS 审中-公开
公开(公告)号：WO2021061871A1
公开(公告)日：2021-04-01
申请号：PCT/US2020/052336
申请日：2020-09-23
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： RAVISHANKAR, Channasandra , GOPAL, Rajeev , BENAMMAR, Nassir , ZAKARIA, Gaguk , HUANG, Xiaoling
IPC分类号： H04W4/00
摘要： A system for providing communication using a plurality of radio access technologies is disclosed. The system utilizes terminals capable of communicating with the plurality of radio access technologies. The terminals are capable of selecting the most suitable radio access technology for different types traffic. Different radios access technologies are further capable of cross-communication in order to route traffic over the most efficient paths.

3. 发明申请

WO2015013216A1 SPACE-BASED AND MOBILE-TERRESTRIAL SENSOR VEHICLES AND NETWORK 审中-公开
标题翻译：基于空间和移动的地面传感器车辆和网络
公开(公告)号：WO2015013216A1
公开(公告)日：2015-01-29
申请号：PCT/US2014/047496
申请日：2014-07-21
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： GOPAL, Rajeev , KAY, Stanley , LYKINS, James , RAVISHANKAR, Channasandra , VASAVADA, Yash
IPC分类号： H04B7/185 , H04B7/24 , H04B7/26
CPC分类号： H04L67/12 , H04B7/18515 , H04B7/2041 , H04L63/20 , H04W40/36 , H04W84/18
摘要： A system is provided for reducing latency data collection from space-based sensor satellites. A mobile vehicle platform includes a sensor module configured to monitor certain conditions, circumstances, environments and situations occurring on or around, or associated with, the Earth, and to generate sensor data resulting from the monitoring. A relay satellite terminal is configured to execute data communications via a communications channel of a first satellite beam, wherein the data communications are configured to relay the sensor data, via satellites, to respective gateways for forwarding to a central processing facility for one or more of aggregation, processing, analysis and dissemination of the data. The relay satellite terminal is further configured to switch the data communications from the communications channel of the first satellite beam to a communications channel of a second satellite beam based on a position of the relay satellite terminal relative to the first and second satellite beams.
摘要翻译：提供了一种用于减少从基于天基的传感器卫星收集延迟数据的系统。移动车辆平台包括被配置为监测在地球上或周围发生的某些状况，环境，环境和情况的传感器模块，并且产生由监测产生的传感器数据。中继卫星终端被配置为经由第一卫星光束的通信信道执行数据通信，其中数据通信被配置为经由卫星将传感器数据中继到相应的网关，以转发到中央处理设备以用于一个或多个汇总，处理，分析和传播数据。中继卫星终端还被配置为基于中继卫星终端相对于第一和第二卫星光束的位置，将数据通信从第一卫星光束的通信信道切换到第二卫星光束的通信信道。

4. 发明申请

WO2019046090A1 SYSTEM AND METHOD FOR NETWORKED SCHEDULING FOR IMPROVED SPECTRAL EFFICIENCY 审中-公开
公开(公告)号：WO2019046090A1
公开(公告)日：2019-03-07
申请号：PCT/US2018/047689
申请日：2018-08-23
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： RAVISHANKAR, Channasandra , HUANG, Xiaoling , BENAMMAR, Nassir , GOPAL, Rajeev , CORRIGAN, John
IPC分类号： H04B7/185
摘要： A method for networked scheduling is disclosed. The method includes: providing a gateway; a plurality of channels assigned to a color reuse scheme including colors, wherein some of the plurality of channels assigned to one of the colors comprise a set of co-channels; associating the set of co-channels with the gateway; generating a traffic pattern for the set of co-channels for an upcoming allocation slot; determining a channel state of each co-channel in the set of co-channels per the traffic pattern; and setting a Modulation and Coding scheme (MODCOD) of each co-channel in the set of co-channels based on the respective channel state.

5. 发明申请

WO2018067821A1 MULTI-MODEM USER TERMINAL AND POLICY-BASED MANAGEMENT FOR SATELLITE TRANSPORT RESILIENCY 审中-公开
标题翻译：多调制解调器用户终端和基于策略的卫星运输恢复能力管理
公开(公告)号：WO2018067821A1
公开(公告)日：2018-04-12
申请号：PCT/US2017/055347
申请日：2017-10-05
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： GOPAL, Rajeev , EAGLING, Trevor
IPC分类号： H04Q11/00 , H04L12/50
摘要： A method comprises monitoring, by a control module of a wireless communications terminal, factors related to a first data path for transmission/reception of data communications by the wireless communications terminal over a wireless data communications network. The control module then determines that the first data path is affected by condition(s), by determining that at least one of the factors satisfies a predetermined state reflecting the condition(s) affecting the first data path. The control module then determines a second data path, wherein the second data path is not affected by the conditions affecting the first data path. The control module then switches from the first data path to the second data path for the transmission/reception of the data communications by the wireless communications terminal over the wireless data communications network.
摘要翻译：一种方法包括由无线通信终端的控制模块监视与无线通信终端通过无线数据通信网络发送/接收数据通信的第一数据路径有关的因素。控制模块然后通过确定至少一个因素满足反映影响第一数据路径的条件的预定状态来确定第一数据路径受条件影响。控制模块然后确定第二数据路径，其中第二数据路径不受影响第一数据路径的条件的影响。然后控制模块从第一数据路径切换到第二数据路径，以便无线通信终端通过无线数据通信网络发送/接收数据通信。

6. 发明申请

WO2016069077A1 CENTRALIZED GROUND-BASED ROUTE DETERMINATION AND TRAFFIC ENGINEERING FOR SOFTWARE DEFINED SATELLITE COMMUNICATIONS NETWORKS 审中-公开
标题翻译：用于软件定义的卫星通信网络的基于地基的路由确定和交通工程
公开(公告)号：WO2016069077A1
公开(公告)日：2016-05-06
申请号：PCT/US2015/043508
申请日：2015-08-03
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： GOPAL, Rajeev , RAVISHANKAR, Channasandra
IPC分类号： H04W40/24
CPC分类号： H04W40/246 , H04B7/1851 , H04B7/18519 , H04L45/02 , H04L45/124 , H04W40/02 , H04W40/248
摘要： Approaches are provided for an SDSN that employs a satellite network nodes, where central L2 network nodes are controlled via a centralized Controller. Link status information is obtained regarding links of each L2 node. Global routing constraints, satellite ephemeris data, and resource allocation information are obtained. A constellation topology of the network nodes is determined based on the ephemeris data. Network routes between pairs of endpoints are determined. Each route includes links based on the link status information regarding the links, the global routing constraints, the bandwidth resources of the links and the current allocation of bandwidth resources, and/or the constellation topology. A forwarding table is generated for each network node, wherein each forwarding table includes route entries providing a next hop indicating a destination for data packets, wherein the destination is associated with a link of the respective network node that represents a link of a respective route.
摘要翻译：为采用卫星网络节点的SDSN提供了方法，其中中央L2网络节点通过集中式控制器进行控制。获得关于每个L2节点的链路的链路状态信息。获得全局路由约束，卫星星历数据和资源分配信息。基于星历数据确定网络节点的星座拓扑。确定端点对之间的网络路由。每个路由包括基于关于链路的链路状态信息，全局路由约束，链路的带宽资源和带宽资源的当前分配和/或星座拓扑的链路。为每个网络节点生成转发表，其中每个转发表包括提供指示数据分组的目的地的下一跳的路由条目，其中目的地与表示相应路由的链路的相应网络节点的链路相关联。

7. 发明申请

WO2015195181A2 SYSTEM AND METHOD FOR CONGESTION MANAGEMENT FOR DOWNLINK QUEUES OF DIGITAL PROCESSING SATELLITES FOR DIFFERENTIATED QUALITY-OF-SERVICE (QOS) 审中-公开
标题翻译：数字处理卫星下行链路服务质量管理系统和方法差分质量服务质量（QOS）
公开(公告)号：WO2015195181A2
公开(公告)日：2015-12-23
申请号：PCT/US2015/023484
申请日：2015-03-31
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： NOERPEL, Anthony , GOPAL, Rajeev
CPC分类号： H04W28/0289 , H04B7/18584 , H04L5/0092 , H04L47/263 , H04W28/12 , H04W72/0486
摘要： Approaches are provided for a congestion detection algorithm for detection of congestion in outroute port queues (associated with respective satellite downlink beams), of a Layer 2 switch on-board a processing satellite, before the congestion reaches the point of dropping packets. Such approaches employ congestion notification protocols to inform all inroute sources of the congested ports. The on-board Layer 2 switch sends congestion notifications to the on-board system controller. The system controller broadcasts a notification reflecting the report of contested ports/beams to source terminals. The source terminals then segregate bandwidth requests regarding traffic destined for congested beams from traffic destined to all uncongested beams, and categorize such requests based on respective traffic priority levels. The system controller makes bandwidth grants according to congestion (for example allowing only higher priority traffic on congested beams) to alleviate the congestion conditions of the respective ports/beams.
摘要翻译：在拥塞达到丢弃分组点之前，提供了一种用于检测在处理卫星上的二层交换机的二进制端口队列（与相应的卫星下行链路波束相关联）中的拥塞的拥塞检测算法的方法。这种方法采用拥塞通知协议来通知拥塞端口的所有路由源。板载二层交换机向车载系统控制器发送拥塞通知。系统控制器向源终端广播反映有争议的端口/波束的报告的通知。然后，源终端将针对来自针对拥塞波束的业务的带宽请求分离到目的地为所有未占用的波束的业务，并且基于相应的业务优先级对这些请求进行分类。系统控制器根据拥塞（例如仅在拥塞的波束上仅允许更高优先级的业务）来减轻相应端口/波束的拥塞状况而进行带宽授权。

8. 发明申请

WO2015009981A1 SYSTEM AND ARCHITECTURE FOR SPACE-BASED AND MOBILE TERRESTRIAL SENSOR VEHICLES 审中-公开
标题翻译：基于空间和移动地面传感器车辆的系统和架构
公开(公告)号：WO2015009981A1
公开(公告)日：2015-01-22
申请号：PCT/US2014/047110
申请日：2014-07-17
申请人： HUGHES NETWORK SYSTEMS, LLC
发明人： GOPAL, Rajeev , KAY, Stanley , LYKINS, James , RAVISHANKAR, Channasandra , VASAVADA, Yash
IPC分类号： H04B7/185
CPC分类号： H04B7/18539 , B64G1/1021 , G01V1/008 , H04B7/18508 , H04B7/18519 , H04B7/18558 , H04L29/0621
摘要： A system is provided for reducing latency data collection from space-based sensor satellites. A mobile vehicle platform, configured to travel around the Earth, includes a sensor module and a relay satellite terminal. The sensor module monitors certain conditions, circumstances, environments and/or situations occurring on or around, or associated with, the Earth, and generates sensor data resulting from the monitoring. The relay satellite terminal executes data communications with a first of a plurality of satellites while the mobile vehicle platform is in a first area within a communications range of the first satellite, and, upon moving to a second area within a communications range of a second of the plurality of satellites, the relay satellite terminal switches the data communications to the second satellite. The data communications relay the sensor data, via the satellites, to a central processing facility for aggregation, processing, analysis and/or dissemination of the data.
摘要翻译：提供了一种用于减少从基于天基的传感器卫星收集延迟数据的系统。配置成围绕地球行进的移动车辆平台包括传感器模块和中继卫星终端。传感器模块监测发生在地球上或周围或与之相关联的某些状况，环境，环境和/或情况，并产生由监测产生的传感器数据。所述中继卫星终端在所述移动车辆平台处于所述第一卫星的通信范围内的第一区域中时，与所述多个卫星中的第一卫星执行数据通信，并且在移动到所述第二卫星的通信范围内的第二区域多个卫星，中继卫星终端将数据通信切换到第二卫星。数据通信通过卫星将传感器数据中继到中央处理设施，用于数据的聚合，处理，分析和/或传播。

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