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1. 发明申请

WO2010054394A2 DYNAMIC RESOURCE ALLOCATION IN A SATELLITE COMMUNICATIONS SYSTEM 审中-公开
标题翻译：卫星通信系统中的动态资源分配
公开(公告)号：WO2010054394A2
公开(公告)日：2010-05-14
申请号：PCT/US2009/063917
申请日：2009-11-10
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04B7/185
CPC分类号： H04B7/18578
摘要： Novel satellite communications systems, methods, and related devices are described. In some embodiments, a satellite communications system is configured to dynamically allocate bandwidth to terminals. Such a system may be made up of a satellite in communication with terminals (e.g., user terminals or gateways). The satellite or a Network Control Center (NCC) may receive and compile bandwidth request data from the terminals. In each of a series of one or more epochs, and according to the bandwidth requests, the satellite and/or NCC may allocate carrier group resources to particular traffic classes. The assignment of allocated resources to particular terminals is also described.
摘要翻译：描述了新型卫星通信系统，方法和相关设备。在一些实施例中，卫星通信系统被配置为向终端动态分配带宽。这样的系统可以由与终端（例如，用户终端或网关）通信的卫星组成。卫星或网络控制中心（NCC）可以从终端接收和编译带宽请求数据。在一系列一个或多个历元中的每一个中，并且根据带宽请求，卫星和/或NCC可以将特定业务类别的载波组资源分配。还分配了分配给特定终端的资源。

2. 发明申请

WO2010148211A1 ADAPTIVE CODING AND MODULATION (ACM) PACKET FETCH AND CLUSTERING 审中-公开
标题翻译：自适应编码和调制（ACM）分组FETCH和聚类
公开(公告)号：WO2010148211A1
公开(公告)日：2010-12-23
申请号：PCT/US2010/039012
申请日：2010-06-17
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04L1/00 , H04B7/185
CPC分类号： H04B7/18582 , H04L1/0003 , H04L1/0009 , H04L2001/0093
摘要： Systems, methods, devices, and processors are described for packet clustering and frame formation in ACM systems. A stream of packets may be received at a gateway. During each cycle, a group of packets from the stream may be fetched according to QoS parameters. The group of packets may be clustered according to modcode to produce a packet list. In some embodiments, packets may be arranged and grouped according to transport steam identifier and modcode to produce a packet list. The packet lists may be clustered sequentially from lower order modcode to higher order modcode. Various frame packing techniques are also described.
摘要翻译：描述了用于ACM系统中的分组聚类和帧形成的系统，方法，设备和处理器。可以在网关处接收分组流。在每个周期期间，可以根据QoS参数获取来自流的一组分组。该组分组可以根据modcode进行聚类以产生分组列表。在一些实施例中，可以根据传输蒸汽标识符和模式码来分组和分组，以产生分组列表。分组列表可以从低阶modcode顺序聚类到高阶modcode。还描述了各种帧打包技术。

3. 发明申请

WO2010054392A2 DYNAMIC RESOURCE ALLOCATION IN A MULTI-BEAM SYSTEM 审中-公开
标题翻译：多波束系统动态资源分配
公开(公告)号：WO2010054392A2
公开(公告)日：2010-05-14
申请号：PCT/US2009/063914
申请日：2009-11-10
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04B7/185 , H04B7/04 , H04W72/04
CPC分类号： H04B7/18539
摘要： Satellite communications systems, methods, and related devices are described. In one embodiment, a satellite communications system is configured to dynamically allocate bandwidth and frequencies among different beams. Bandwidth request data may be received and compiled from the terminals. The satellite may be configured with different beam coverage areas, and may dynamically allocate bandwidth and particular frequency channels to different beam coverage areas based on the requests. In each of a series of one or more epochs, and according to the bandwidth requests, there may be allocations among carrier groups, traffic classes, and particular terminals. The setup of slot structure and selection of modes for particular terminals is also addressed.
摘要翻译：描述卫星通信系统，方法和相关设备。在一个实施例中，卫星通信系统被配置为动态分配不同波束之间的带宽和频率。带宽请求数据可以从终端接收和编译。卫星可以配置有不同的波束覆盖区域，并且可以基于请求动态地将带宽和特定频率信道分配给不同的波束覆盖区域。在一系列一个或多个历元中的每一个中，并且根据带宽请求，可能在载波组，业务类别和特定终端之间存在分配。还讨论了槽结构的设置和特定终端的模式选择。

4. 发明申请

WO2008109860A2 SATELLITE REFERENCE TERMINAL SYSTEMS AND METHODS 审中-公开
标题翻译：卫星参考终端系统和方法
公开(公告)号：WO2008109860A2
公开(公告)日：2008-09-12
申请号：PCT/US2008/056294
申请日：2008-03-07
申请人： VIASAT, INC. , AGARWAL, Anil , HARIHARAN, Moorthy
发明人： AGARWAL, Anil , HARIHARAN, Moorthy
IPC分类号： H04B7/185
CPC分类号： H04B7/18589 , H04B7/18528 , H04B7/18584
摘要： Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.
摘要翻译：描述卫星通信系统，方法和相关设备。卫星通信系统可以包括卫星上的路由和交换功能。这样的系统可以包括通过卫星间链路直接或经由一个或多个其他卫星与终端（例如，用户终端或网关）进行通信的卫星。卫星可以配置有不同的波束，每个波束向覆盖区域提供服务。地面网络控制中心（NCC）可以动态分配卫星上测量的带宽和过程数据。描述了卫星和NCC之间的功能的新颖划分。还描述了卫星上的路由路径和系统内路由表的分布。

5. 发明申请

WO2010054395A2 DYNAMIC FREQUENCY ASSIGNMENT IN A MULTI-BEAM SYSTEM 审中-公开
标题翻译：多波束系统中的动态频率分配
公开(公告)号：WO2010054395A2
公开(公告)日：2010-05-14
申请号：PCT/US2009/063919
申请日：2009-11-10
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04W72/04 , H04W84/06 , H04W28/20
CPC分类号： H04B7/18515
摘要： Novel satellite communications systems, methods, and related devices are described. In one set of embodiments, available frequency channels may be dynamically assigned to particular beams of a multi-beam satellite system. The frequency assignment may be based on the amount of frequency allocated to particular beams of the multi-beam satellite system, utilizing a novel frequency selection method employing frequency reuse constraints. There may be a number of distinct frequency channels that are each assigned to one or more different beams. Such a system may be made up of a satellite in communication with terminals (e.g., user terminals or gateways). The satellite may receive and compile bandwidth request data from the terminals, and use this information in frequency assignment.
摘要翻译：描述了新型卫星通信系统，方法和相关设备。在一组实施例中，可以将可用频率信道动态分配给多波束卫星系统的特定波束。频率分配可以基于分配给多波束卫星系统的特定波束的频率的量，利用采用频率复用约束的新型频率选择方法。可以有多个不同的频率信道被分配给一个或多个不同的波束。这样的系统可以由与终端（例如，用户终端或网关）通信的卫星组成。卫星可以从终端接收和编译带宽请求数据，并在频率分配中使用该信息。

6. 发明申请

WO2009020935A2 RATE ADAPTIVE MODEM 审中-公开
标题翻译：速率自适应调制解调器
公开(公告)号：WO2009020935A2
公开(公告)日：2009-02-12
申请号：PCT/US2008/072151
申请日：2008-08-04
申请人： VIASAT INC. , MILLER, Mark , AGARWAL, Anil
发明人： MILLER, Mark , AGARWAL, Anil
IPC分类号： H04L27/00
CPC分类号： H04L1/0003 , H04L1/0009 , H04L1/0016
摘要： A communication system transmitting signals over a network using a transmission waveform in which a plurality of data packets are transmitted in a payload field of a transmission frame, the system includes a transmitter, which has a transmitting portion that sends information including user data in the data packets and a user data rate portion that dynamically changes the data rate of the user data to the highest rate possible for current link conditions by changing the waveform. The communication system also includes a receiver, which has a receiving portion that receives the information data packets and a reconfiguration portion that reconfigures the receiving portion based on the waveform parameters.
摘要翻译：一种通信系统，使用在传输帧的有效载荷字段中传输多个数据分组的传输波形在网络上传输信号，该系统包括发射器，该发射器具有发射部分，通过改变波形发送包括数据分组中的用户数据和用户数据速率部分的信息，该用户数据速率部分通过改变波形将用户数据的数据速率动态地改变为当前链路条件可能的最高速率。通信系统还包括接收器，其具有接收信息数据分组的接收部分和基于波形参数重新配置接收部分的重新配置部分。

7. 发明申请

WO2008092023A2 ENHANCED ERROR CONTROL COMMUNICATION SYSTEMS AND METHODS 审中-公开
标题翻译：增强错误控制通信系统和方法
公开(公告)号：WO2008092023A2
公开(公告)日：2008-07-31
申请号：PCT/US2008/051941
申请日：2008-01-24
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04L1/18 , H04L1/00
CPC分类号： H04L1/1841 , H04B7/18543 , H04L2001/0097
摘要： Systems, methods, and devices for novel error detection and retransmission processes are described. These processes may be implemented on intermediate communication links between two end terminals, wherein the intermediate links are via satellite. Error control mechanisms to detect and retransmit lost or corrupted frames may be implemented at the network layer, or between the network and data link layers. Processes for discovering error control protocol-aware terminals are described. Features of these error control processes may include a configurable delay limit, tailored to traffic type or class.
摘要翻译：描述了用于新颖的错误检测和重传过程的系统，方法和设备。这些过程可以在两个终端之间的中间通信链路上实现，其中中间链路经由卫星。用于检测和重传丢失或损坏的帧的错误控制机制可以在网络层或网络和数据链路层之间实现。描述用于发现错误控制协议感知终端的过程。这些错误控制过程的特征可以包括根据流量类型或类别而定制的可配置延迟限制。

8. 发明申请

WO2008005913A2 METHOD AND APPARATUS FOR SECURE COMMUNICATIONS 审中-公开
标题翻译：用于安全通信的方法和设备
公开(公告)号：WO2008005913A2
公开(公告)日：2008-01-10
申请号：PCT/US2007/072629
申请日：2007-07-02
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04L9/00
CPC分类号： H04L9/0841 , H04L9/0822 , H04L9/12 , H04L2209/60
摘要： A method of managing a key for encrypted communication over a communication link between first and second modems, each modem having respective first and second master keys. A first key material for the first modem is transmitted to the second modem in an encrypted message using the first master key, via a time divided frame over the link. Upon receipt, a second key material is generated at the second modem and is sent to the first modem. Then, at each of the first and second modems, session keys are generated based on the key materials, preferably using a hashing algorithm. An encryptor at the first modem and a decryptor at the second modem are programmed with an identified key and a session key. Encryption is enabled at the first modem and information is transmitted in encrypted frames using the identified key. The second modem receives and decrypts the encrypted frames when frames with the identified key are received.
摘要翻译：一种管理通过第一和第二调制解调器之间的通信链路进行加密通信的密钥的方法，每个调制解调器具有相应的第一和第二主密钥。用于第一调制解调器的第一密钥材料通过链路上的时间分隔帧使用第一主密钥以加密消息的形式被发送到第二调制解调器。收到后，在第二个调制解调器上生成第二个密钥资料并发送给第一个调制解调器。然后，在第一和第二调制解调器中的每一个处，基于密钥材料生成会话密钥，优选地使用散列算法。第一个调制解调器的加密器和第二个调制解调器的解密器用一个识别的密钥和一个会话密钥编程。在第一个调制解调器中启用加密，并使用识别的密钥以加密的帧传输信息。第二个调制解调器在接收到带有已识别密钥的帧时接收和解密加密帧。

9. 发明申请

WO2010148022A1 DYNAMIC BANDWIDTH RESOURCE ALLOCATION FOR SATELLITE DOWNLINKS 审中-公开
标题翻译：用于卫星下载的动态带宽资源分配
公开(公告)号：WO2010148022A1
公开(公告)日：2010-12-23
申请号：PCT/US2010/038721
申请日：2010-06-15
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04B7/185
CPC分类号： H04B7/18515 , H04B7/0408 , H04B7/18539 , H04B7/2123 , H04B7/22 , H04L5/0096 , H04L67/322 , H04W24/08 , H04W72/042 , H04W72/0446 , H04W72/046
摘要： Satellite communications systems, methods, and related devices are described. In one embodiment, a satellite communications system is configured to dynamically allocate bandwidth among different downlink beams. The satellite may receive and compile traffic measurements and terminal parameters. The satellite may be configured with different downlink beam coverage areas, and may dynamically allocate downlink bandwidth and particular frequency channels to different beam coverage areas based on the measurements and parameters. The satellite may also assign frequency channels and time slots based on such measurements and parameters.
摘要翻译：描述卫星通信系统，方法和相关设备。在一个实施例中，卫星通信系统被配置为在不同的下行链路波束之间动态分配带宽。卫星可以接收和编译业务测量和终端参数。卫星可以配置有不同的下行链路波束覆盖区域，并且可以基于测量和参数来动态地将下行链路带宽和特定频率信道分配给不同的波束覆盖区域。卫星还可以基于这样的测量和参数分配频率信道和时隙。

10. 发明申请

WO2010059299A2 SYNCHRONIZATION FOR MESH SATELLITE COMMUNICATIONS 审中-公开
标题翻译：卫星通信同步
公开(公告)号：WO2010059299A2
公开(公告)日：2010-05-27
申请号：PCT/US2009/059722
申请日：2009-10-06
申请人： VIASAT, INC. , AGARWAL, Anil
发明人： AGARWAL, Anil
IPC分类号： H04W56/00 , H04W84/06 , H04L12/66
CPC分类号： H04B7/18513
摘要： Methods, systems, and devices are described for synchronization in mesh satellite communications. The arrival time of the gateway signal may be used to set a start of receive frame time for a terminal. A received control signal from the gateway may then be used to set a start of transmit frame time for the user terminal. The distance between the satellite and the gateway may change. Ephemeris data, various collections of terminal measurements, or terminal sync bursts may be used to modify start of transmit frame or start of receive frame settings for the terminal or gateway.
摘要翻译：描述了网状卫星通信中的同步方法，系统和设备。网关信号的到达时间可以用于设置终端的接收帧时间的开始。然后可以使用来自网关的接收到的控制信号来设置用户终端的发送帧时间的开始。卫星和网关之间的距离可能会改变。星历数据，终端测量的各种集合或终端同步突发可以用于修改终端或网关的发送帧的开始或接收帧设置的开始。

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