High data rate multiplexing satellite stream to low data rate subscriber terminals
    1.
    发明授权
    High data rate multiplexing satellite stream to low data rate subscriber terminals 有权
    高数据速率复用卫星流到低数据速率用户终端

    公开(公告)号:US08159994B2

    公开(公告)日:2012-04-17

    申请号:US12411738

    申请日:2009-03-26

    CPC分类号: H04B7/18582

    摘要: A satellite modem for broadband communication. The satellite modem receives a satellite signal on a single carrier from a satellite. The satellite signal is divided by time division multiplexing into physical sub-channels encapsulating logical downstreams. The satellite modem includes a filter which removes a subset of the physical sub-channels intended for the subscriber terminal. The satellite modem includes a demodulator, a decoder, and a medium access channel. The MAC processes the logical downstreams.

    摘要翻译: 用于宽带通信的卫星调制解调器。 卫星调制解调器从卫星在单个载波上接收卫星信号。 卫星信号被时分多路复用为封装逻辑下游的物理子信道。 卫星调制解调器包括一个去除用于用户终端的物理子信道子集的过滤器。 卫星调制解调器包括解调器,解码器和媒体接入信道。 MAC处理逻辑下游。

    Multiple MAC domains
    2.
    发明授权
    Multiple MAC domains 有权
    多个MAC域

    公开(公告)号:US08189501B2

    公开(公告)日:2012-05-29

    申请号:US12411744

    申请日:2009-03-26

    CPC分类号: H04B7/18582

    摘要: A satellite system for broadband communication with a plurality of remote locations is described. The system includes a satellite and a plurality of service spot beams from the satellite. A plurality of forward channels are transported on carriers in the service spot beams. A plurality of sub-channels pass on the plurality of forward channels. The system further includes a plurality of independently managed domains, wherein the plurality of sub-channels are divided among the plurality of domains. The system may further include a plurality of satellite modems addressed by a plurality of service identifiers. Each of the plurality of service identifiers may be exclusively addressable within one of the plurality of domains.

    摘要翻译: 描述了用于与多个远程位置进行宽带通信的卫星系统。 该系统包括卫星和来自卫星的多个服务点波束。 多个前进通道在服务点波束中的载体上传送。 多个子信道通过多个前向信道。 该系统还包括多个独立管理的域,其中多个子信道在多个域之间被划分。 该系统还可以包括由多个服务标识符寻址的多个卫星调制解调器。 多个服务标识符中的每一个可以在多个域中的一个域内是唯一可寻址的。

    Map-triggered dump of packets in satellite communication system
    3.
    发明授权
    Map-triggered dump of packets in satellite communication system 有权
    地图触发转发卫星通信系统中的数据包

    公开(公告)号:US08107410B2

    公开(公告)日:2012-01-31

    申请号:US12408614

    申请日:2009-03-20

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18582 H04B7/2123

    摘要: Upstream information arriving through a user terminal in a satellite link is efficiently scheduled through a modified Demand Assigned Multiple Access (DAMA) algorithm such that data packets arriving at the user terminal are concatenated to form a larger frame for transmission and the concatenated packet is held in a first queue disposed ahead of a second queue, where the data in the second queue cannot be modified (typically a hardware queue), sufficient to allow the second queue to be emptied. In a specific embodiment, all packets arriving at the user terminal since a prior piggyback request are concatenated so that all currently known packets (up to a preselected limit) are accounted for by each succeeding piggyback request. Since it is desirable to concatenate all packets that arrive at the user terminal since the last piggyback request, the piggyback request according to the invention covers all currently known packets (up to the preselected limit) in the user terminal. The held-back packets are released or dumped to the second queue by a trigger operative according to a map, the map being a grant allocation schedule. This mechanism handles instances where the second queue is not able to handle all known packets.

    摘要翻译: 通过修改的需求分配多址(DAMA)算法有效地调度通过卫星链路中的用户终端到达的上行信息,使得到达用户终端的数据分组被级联以形成更大的传输帧,并且级联的分组被保持在 设置在第二队列之前的第一队列,其中第二队列中的数据不能被修改(通常为硬件队列),足以允许第二队列被清空。 在具体实施例中,从先前的捎带请求到达用户终端的所有分组被级联,使得所有当前已知的分组(直到预选的限制)被每个后续的捎带请求所考虑。 由于最后一次重载请求,连接到达用户终端的所有分组是理想的,所以根据本发明的搭载请求覆盖用户终端中的所有当前已知的分组(直到预先选定的极限)。 通过根据地图操作的触发将被保留的分组释放或转储到第二队列,该映射是授权分配调度。 此机制处理第二个队列不能处理所有已知数据包的实例。

    MULTI-USER DETECTION IN SATELLITE RETURN LINK
    4.
    发明申请
    MULTI-USER DETECTION IN SATELLITE RETURN LINK 有权
    卫星返回链路中的多用户检测

    公开(公告)号:US20090290535A1

    公开(公告)日:2009-11-26

    申请号:US12411694

    申请日:2009-03-26

    IPC分类号: H04B7/212

    CPC分类号: H04B7/18582

    摘要: Use of multi-user detection (MUD) with a frequency-multiplexed satellite return link (scheduling algorithms, etc) is described. The satellite return link may utilize multi-frequency time division multiple access (MF-TDMA). The satellite return link may include a plurality of return sub-channels, wherein one or more of the return sub-channels may operate in a contention mode during some time periods and a non-contention mode at different time periods.

    摘要翻译: 描述了使用多用户检测(MUD)与频率复用的卫星返回链路(调度算法等)。 卫星返回链路可以利用多频时分多址(MF-TDMA)。 卫星返回链路可以包括多个返回子信道,其中返回子信道中的一个或多个可以在一些时间段内的争用模式中操作,并且在不同时间段可以进行非争用模式。

    Multi-user detection in satellite return link
    5.
    发明授权
    Multi-user detection in satellite return link 有权
    多用户检测卫星返回链路

    公开(公告)号:US08159993B2

    公开(公告)日:2012-04-17

    申请号:US12411694

    申请日:2009-03-26

    IPC分类号: H04B7/185 H04B7/212 H04J3/02

    CPC分类号: H04B7/18582

    摘要: Use of multi-user detection (MUD) with a frequency-multiplexed satellite return link (scheduling algorithms, etc) is described. The satellite return link may utilize multi-frequency time division multiple access (MF-TDMA). The satellite return link may include a plurality of return sub-channels, wherein one or more of the return sub-channels may operate in a contention mode during some time periods and a non-contention mode at different time periods.

    摘要翻译: 描述了使用多用户检测(MUD)与频率复用的卫星返回链路(调度算法等)。 卫星返回链路可以利用多频时分多址(MF-TDMA)。 卫星返回链路可以包括多个返回子信道,其中返回子信道中的一个或多个可以在一些时间段内的争用模式中操作,并且在不同时间段可以进行非争用模式。

    Large packet concatenation in satellite communication system
    6.
    发明授权
    Large packet concatenation in satellite communication system 有权
    卫星通信系统中的大包连接

    公开(公告)号:US08107368B2

    公开(公告)日:2012-01-31

    申请号:US12408543

    申请日:2009-03-20

    IPC分类号: H04L1/00

    CPC分类号: H04B7/18582 H04B7/2123

    摘要: Upstream information arriving through a gateway from a user terminal in a satellite link subject to propagation delay is efficiently scheduled through a modified Demand Assigned Multiple Access (DAMA) algorithm such that arriving data packets arriving at the software queue at the user terminal are concatenated to form a large frame for transmission to improve efficiency. A piggyback request replacing a conventional DAMA contention request for the succeeding packet is issued to request bandwidth allocation for the succeeding concatenated packet. In a specific embodiment, all packets up to the physical request limit arriving at the user terminal since a prior piggyback request or contention request are concatenated so that all currently known packets (up to that limit) are accounted for by the next piggyback request.

    摘要翻译: 通过修改的需求分配多址(DAMA)算法有效地调度通过网关从卫星链路中的用户终端到达传播延迟的上行信息,使得到达用户终端处的软件队列的到达数据分组被级联以形成 一个大框架用于传输以提高效率。 发布替代用于后续分组的常规DAMA争用请求的搭载请求,以请求针对后续级联分组的带宽分配。 在特定实施例中,自从先前的捎带请求或争用请求到达用户终端的直到物理请求限制的所有分组被级联,使得所有当前已知的分组(直到该限制)被下一个搭载请求所考虑。

    MAP-TRIGGERED DUMP OF PACKETS IN SATELLITE COMMUNICATION SYSTEM
    7.
    发明申请
    MAP-TRIGGERED DUMP OF PACKETS IN SATELLITE COMMUNICATION SYSTEM 有权
    卫星通信系统中的包的MAP-TRIGGERED DUMP

    公开(公告)号:US20090290532A1

    公开(公告)日:2009-11-26

    申请号:US12408614

    申请日:2009-03-20

    IPC分类号: H04B7/185

    CPC分类号: H04B7/18582 H04B7/2123

    摘要: Upstream information arriving through a user terminal in a satellite link is efficiently scheduled through a modified Demand Assigned Multiple Access (DAMA) algorithm such that data packets arriving at the user terminal are concatenated to form a larger frame for transmission and the concatenated packet is held in a first queue disposed ahead of a second queue, where the data in the second queue cannot be modified (typically a hardware queue), sufficient to allow the second queue to be emptied. In a specific embodiment, all packets arriving at the user terminal since a prior piggyback request are concatenated so that all currently known packets (up to a preselected limit) are accounted for by each succeeding piggyback request. Since it is desirable to concatenate all packets that arrive at the user terminal since the last piggyback request, the piggyback request according to the invention covers all currently known packets (up to the preselected limit) in the user terminal. The held-back packets are released or dumped to the second queue by a trigger operative according to a map, the map being a grant allocation schedule. This mechanism handles instances where the second queue is not able to handle all known packets.

    摘要翻译: 通过修改的需求分配多址(DAMA)算法有效地调度通过卫星链路中的用户终端到达的上行信息,使得到达用户终端的数据分组被级联以形成更大的传输帧,并且级联的分组被保持在 设置在第二队列之前的第一队列,其中第二队列中的数据不能被修改(通常为硬件队列),足以允许第二队列被清空。 在具体实施例中,从先前的捎带请求到达用户终端的所有分组被级联,使得所有当前已知的分组(直到预选的限制)被每个后续的捎带请求所考虑。 由于最后一次重载请求,连接到达用户终端的所有分组是理想的,所以根据本发明的搭载请求覆盖用户终端中的所有当前已知的分组(直到预先选定的极限)。 通过根据地图操作的触发将被保留的分组释放或转储到第二队列,该映射是授权分配调度。 此机制处理第二个队列不能处理所有已知数据包的实例。

    Multiple MAC Domains
    8.
    发明申请
    Multiple MAC Domains 有权
    多个MAC域

    公开(公告)号:US20090285152A1

    公开(公告)日:2009-11-19

    申请号:US12411744

    申请日:2009-03-26

    IPC分类号: H04B7/185 H04W4/00

    CPC分类号: H04B7/18582

    摘要: A satellite system for broadband communication with a plurality of remote locations is described. The system includes a satellite and a plurality of service spot beams from the satellite. A plurality of forward channels are transported on carriers in the service spot beams. A plurality of sub-channels pass on the plurality of forward channels. The system further includes a plurality of independently managed domains, wherein the plurality of sub-channels are divided among the plurality of domains. The system may further include a plurality of satellite modems addressed by a plurality of service identifiers. Each of the plurality of service identifiers may be exclusively addressable within one of the plurality of domains.

    摘要翻译: 描述了用于与多个远程位置进行宽带通信的卫星系统。 该系统包括卫星和来自卫星的多个服务点波束。 多个前进通道在服务点波束中的载体上传送。 多个子信道通过多个前向信道。 该系统还包括多个独立管理的域,其中多个子信道在多个域之间被划分。 该系统还可以包括由多个服务标识符寻址的多个卫星调制解调器。 多个服务标识符中的每一个可以在多个域中的一个域内是唯一可寻址的。

    Intra-Domain Load Balancing
    9.
    发明申请
    Intra-Domain Load Balancing 有权
    域内负载均衡

    公开(公告)号:US20090285151A1

    公开(公告)日:2009-11-19

    申请号:US12411692

    申请日:2009-03-26

    IPC分类号: H04B7/185 H04W72/00

    CPC分类号: H04B7/18582

    摘要: A satellite system for broadband communication utilizing load balancing of satellite modems between physical forward sub-channels. The bandwidth requirements of the various satellite modems allocated to a domain are analyzed. Satellite modems, which can be moved between various physical forward sub-channels, are moved among physical forward sub-channels of a plurality of domains to balance loading between domains and/or physical forward sub-channels within domains. Buffering and latency are monitored in the subscriber modem termination system (SMTS) to allow dividing physical forward channel delay either uniformly or according to tiers of quality of service.

    摘要翻译: 一种用于宽带通信的卫星系统,利用物理前向子信道之间的卫星调制解调器的负载平衡。 分析了分配给域的各种卫星调制解调器的带宽要求。 可以在各种物理前向子信道之间移动的卫星调制解调器在多个域的物理前向子信道之间移动,以平衡域内和/或域内的物理前向子信道之间的加载。 在用户调制解调器终端系统(SMTS)中监视缓冲和延迟,以允许均匀地或根据服务质量层划分物理前向信道延迟。

    Web-bulk transfer preallocation of upstream resources in a satellite communication system
    10.
    发明授权
    Web-bulk transfer preallocation of upstream resources in a satellite communication system 有权
    卫星通信系统上游资源的网络批量传输预分配

    公开(公告)号:US08218473B2

    公开(公告)日:2012-07-10

    申请号:US12409306

    申请日:2009-03-23

    IPC分类号: H04B7/185

    CPC分类号: H04B7/2123 H04B7/18586

    摘要: In a data over satellite system, preallocation of upstream channel resources is provided by a scheduler at the gateway satellite modem termination system (SMTS) in response from the user terminal, wherein the user terminal detects web browser and/or bulk transfers involving large amounts of data transfer from users via the upstream channel. A type length value (TLV) field is included with data packets transmitted to the gateway SMTS, at which excess transfer capability is allocated to the user terminal in anticipation of load requirements.

    摘要翻译: 在卫星数据系统中,上行信道资源的预先分配由用户终端响应的网关卫星调制解调器终端系统(SMTS)的调度器提供,其中用户终端检测涉及大量网络浏览器的web浏览器和/或批量传输 通过上行通道从用户传输数据。 在发送到网关SMTS的数据分组中包括类型长度值(TLV)字段,其中在预期负载需求时向用户终端分配多余的传输能力。