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    Memory management for high speed media access control
    1.
    发明授权
    Memory management for high speed media access control 失效
    高速媒体访问控制的内存管理

    公开(公告)号：US08594112B2

    公开(公告)日：2013-11-26

    申请号：US13425031

    申请日：2012-03-20

    申请人： Subrahmanyam Dravida ,  Sriram Narayan

    发明人： Subrahmanyam Dravida ,  Sriram Narayan

    IPC分类号： H04L12/56

    CPC分类号： H04L49/901 ,  H04L47/14 ,  H04L47/621 ,  H04L49/90 ,  H04L49/9021 ,  H04L49/9073 ,  H04W36/02 ,  H04W36/28 ,  H04W76/20 ,  H04W88/02 ,  H04W88/08

    摘要： Aspects disclosed herein address the need in the art for memory management for high speed media access control. A packet buffer may store packets with a first data structure, comprising the packet length, sequence number, and a pointer to a second data structure. Packet data may be stored in a linked list of one or more second data structures. Transmit and receive queues may be formed using linked lists or arrays of the first data structures. Memory locations for storing first and second data structures may be kept in lists indicating free locations for the respective data structure types. A flexible memory architecture is disclosed in which two configurations may be selected. Various other aspects are also presented.

    摘要翻译： 本文公开的方面解决了本领域对用于高速媒体访问控制的存储器管理的需要。 分组缓冲器可以存储具有第一数据结构的分组，包括分组长度，序列号和指向第二数据结构的指针。 分组数据可以存储在一个或多个第二数据结构的链接列表中。 发送和接收队列可以使用第一数据结构的链表或数组来形成。 用于存储第一和第二数据结构的存储器位置可以保存在指示相应数据结构类型的空闲位置的列表中。 公开了一种灵活的存储器架构，其中可以选择两种配置。 还提出了各种其他方面。

    MEMORY MANAGEMENT FOR HIGH SPEED MEDIA ACCESS CONTROL
    3.
    发明申请
    MEMORY MANAGEMENT FOR HIGH SPEED MEDIA ACCESS CONTROL 失效
    高速媒体访问控制的内存管理

    公开(公告)号：US20120236789A1

    公开(公告)日：2012-09-20

    申请号：US13425031

    申请日：2012-03-20

    申请人： Subrahmanyam Dravida ,  Sriram Narayan

    发明人： Subrahmanyam Dravida ,  Sriram Narayan

    IPC分类号： H04L12/56 ,  H04W40/00

    CPC分类号： H04L49/901 ,  H04L47/14 ,  H04L47/621 ,  H04L49/90 ,  H04L49/9021 ,  H04L49/9073 ,  H04W36/02 ,  H04W36/28 ,  H04W76/20 ,  H04W88/02 ,  H04W88/08

    摘要： Aspects disclosed herein address the need in the art for memory management for high speed media access control. A packet buffer may store packets with a first data structure, comprising the packet length, sequence number, and a pointer to a second data structure. Packet data may be stored in a linked list of one or more second data structures. Transmit and receive queues may be formed using linked lists or arrays of the first data structures. Memory locations for storing first and second data structures may be kept in lists indicating free locations for the respective data structure types. A flexible memory architecture is disclosed in which two configurations may be selected. Various other aspects are also presented.

    摘要翻译： 本文公开的方面解决了本领域对用于高速媒体访问控制的存储器管理的需要。 分组缓冲器可以存储具有第一数据结构的分组，包括分组长度，序列号和指向第二数据结构的指针。 分组数据可以存储在一个或多个第二数据结构的链接列表中。 发送和接收队列可以使用第一数据结构的链表或数组来形成。 用于存储第一和第二数据结构的存储器位置可以保存在指示相应数据结构类型的空闲位置的列表中。 公开了一种灵活的存储器架构，其中可以选择两种配置。 还提出了各种其他方面。

    Multi-antenna station with distributed antennas
    5.
    发明授权
    Multi-antenna station with distributed antennas 有权
    具有分布式天线的多天线站

    公开(公告)号：US07603141B2

    公开(公告)日：2009-10-13

    申请号：US11144994

    申请日：2005-06-02

    申请人： Subrahmanyam Dravida

    发明人： Subrahmanyam Dravida

    IPC分类号： H04M1/00

    CPC分类号： H04B7/0691 ,  H04B7/0413 ,  H04W48/20 ,  H04W88/085

    摘要： A multi-antenna station with distributed antennas and capable of providing good performance for terminals distributed throughout the coverage area of the multi-antenna station is described. The multi-antenna station includes multiple antennas, a controller, and at least one transmitter unit. The multiple antennas are coupled to the multi-antenna station and include at least one remote antenna that is located away from the multi-antenna station. The controller selects a set of one or more antennas from among the multiple antennas for data transmission to a terminal. The at least one transmitter unit transmits data to the terminal via the set of one or more antennas.

    摘要翻译： 描述了具有分布式天线并且能够为分布在多天线站的整个覆盖区域的终端提供良好性能的多天线站。 多天线站包括多个天线，控制器和至少一个发射机单元。 多个天线耦合到多天线台，并且包括位于远离多天线站的至少一个远程天线。 控制器从多个天线中选择一组一个或多个天线，用于向终端发送数据。 至少一个发射机单元经由一个或多个天线的集合向终端发送数据。

    Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks
    6.
    发明申请
    Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks 有权
    无线广域网和无线局域网或无线个人区域网互通的方法和装置

    公开(公告)号：US20070010248A1

    公开(公告)日：2007-01-11

    申请号：US11240725

    申请日：2005-09-30

    申请人： Subrahmanyam Dravida ,  Jay Walton ,  Sanjiv Nanda ,  Shravan Surineni

    发明人： Subrahmanyam Dravida ,  Jay Walton ,  Sanjiv Nanda ,  Shravan Surineni

    IPC分类号： H04Q7/20

    CPC分类号： H04W84/18 ,  H04M7/0075 ,  H04W24/08 ,  H04W40/02 ,  H04W40/20 ,  H04W60/00 ,  H04W84/04 ,  H04W84/12 ,  H04W88/08 ,  H04W92/02

    摘要： Embodiments describe registration in a wireless communication system. A method includes wirelessly transmitting over a WWAN a first registration message from a mobile device, wirelessly transmitting through the WWAN a second registration message to a WLAN access point and receiving at the mobile device access through the WLAN access point. According to another embodiment is a method for constructing a self-configuring ad-hoc network. The method can include receiving a GPS coordinate from a WWAN channel node at a management system and creating an initial topography based at least in part on the GPS coordinate to achieve a network connectivity with diverse routes between a plurality of nodes.

    摘要翻译： 实施例描述了在无线通信系统中的配准。 一种方法包括通过WWAN无线地从移动设备发送第一注册消息，通过WWAN向WLAN接入点无线地发送第二注册消息，并在移动设备处接收通过WLAN接入点的接入。 根据另一个实施例是用于构建自配置自组织网络的方法。 该方法可以包括在管理系统处从WWAN信道节点接收GPS坐标并且至少部分地基于GPS坐标创建初始地形，以实现与多个节点之间的不同路由的网络连接。

    Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks
    7.
    发明申请
    Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks 有权
    无线广域网和无线局域网或无线个人区域网互通的方法和装置

    公开(公告)号：US20070008925A1

    公开(公告)日：2007-01-11

    申请号：US11240045

    申请日：2005-09-30

    申请人： Subrahmanyam Dravida ,  Jay Walton ,  Sanjiv Nanda ,  Shravan Surineni

    发明人： Subrahmanyam Dravida ,  Jay Walton ,  Sanjiv Nanda ,  Shravan Surineni

    IPC分类号： H04Q7/00

    CPC分类号： H04W36/30 ,  H04W36/14 ,  H04W36/36 ,  H04W88/06

    摘要： Embodiments describe utilizing time-based information to improve communication in a wireless network. A method can include receiving beacon information from at least one access point and utilizing time-stamp information associated with the beacon information to determine whether to hand off communication with a second access point. According to other embodiments the method can further include detecting beacon quality is below a threshold level and transmitting a poor beacon quality message. Information relating to a plurality of alternate access points can be received in response to the transmitted poor beacon quality message.

    摘要翻译： 实施例描述了利用基于时间的信息来改善无线网络中的通信。 一种方法可以包括从至少一个接入点接收信标信息，并利用与信标信息相关联的时间戳信息来确定是否切断与第二接入点的通信。 根据其他实施例，该方法还可以包括检测信标质量低于阈值水平并发送不良信标质量消息。 可以响应于所发送的差信标质量消息而接收与多个替代接入点相关的信息。

    Mobility management for a multimedia mobile network
    8.
    发明授权
    Mobility management for a multimedia mobile network 有权
    多媒体移动网络的移动管理

    公开(公告)号：US06747961B1

    公开(公告)日：2004-06-08

    申请号：US09547262

    申请日：2000-04-11

    申请人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    发明人： Walid Ahmed ,  Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Hong Jiang ,  Kiran M. Rege

    IPC分类号： H04Q700

    CPC分类号： H04W8/082 ,  H04L29/12009 ,  H04L29/12047 ,  H04L29/12801 ,  H04L61/15 ,  H04L61/6004 ,  H04L69/16 ,  H04L69/161 ,  H04L69/164 ,  H04W80/04

    摘要： Various methodologies and related apparatus associated with mobility management issues within a packet-based multiaccess mobile communications system, which includes a plurality of mobile user stations and a plurality of network nodes, are provided. Location management techniques include tracking and/or locating mobile stations within the system. The invention makes use of home and visiting location registers in which information such as mobile station addresses and/or host names associated with mobile stations are stored. Mobile access methodologies include a complete mobile access method and a direct mobile access method. The former allows a mobile station to preferably include a unique address in the packets being transmitted, while the latter allows the station to merely use the host name of the destination station. The invention also includes various in-call mobility management techniques, including handoffs, which make use of the concept of an anchor.

    摘要翻译： 提供了包括多个移动用户站和多个网络节点的基于分组的多接入移动通信系统内与移动性管理问题相关联的各种方法和相关设备。 位置管理技术包括跟踪和/或定位系统内的移动台。 本发明利用存储与移动台相关联的诸如移动站地址和/或主机名称的信息的归属和访问位置寄存器。 移动接入方法包括完整的移动接入方法和直接移动接入方法。 前者允许移动台优选地在正被发送的分组中包括唯一的地址，而后者允许站仅使用目的站的主机名。 本发明还包括使用锚的概念的各种呼叫移动性管理技术，包括切换。

    Distributed precomputation of signal paths in an optical network
    9.
    发明授权
    Distributed precomputation of signal paths in an optical network 失效
    光网络中信号路径的分布预计算

    公开(公告)号：US6073248A

    公开(公告)日：2000-06-06

    申请号：US960462

    申请日：1997-10-29

    申请人： Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Paramasiviah Harshavardhana ,  Yufei Wang

    发明人： Bharat Tarachand Doshi ,  Subrahmanyam Dravida ,  Paramasiviah Harshavardhana ,  Yufei Wang

    IPC分类号： H04J14/02 ,  H04Q11/00 ,  G06F11/00 ,  H04B10/20

    CPC分类号： H04Q11/0062 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0278 ,  H04J14/0284 ,  H04Q2011/0086

    摘要： Distributed precomputation techniques for determining primary and/or restoration paths in an optical network. The invention provides a number of partially and fully asynchronous distributed precomputation algorithms which may be implemented, for example, by the nodes of an all-optical network, in which network links are constrained in terms of optical signal wavelength and failure isolation. A given distributed precomputation algorithm may include a first phase in which paths are allocated for capacity demands to the extent possible without resolving contentions, and a second phase in which contentions between demands for the same capacity are resolved. The first phase may implement a contention locking mechanism which locks a primary path of a given demand to prevent other demands from contending for the same capacity, and a link capacity control mechanism which involves storing a link status table at one or more nodes, the link status table listing a number of specific failures and demands which are affected by the failures. The second phase of the distributed precomputation algorithm reroutes paths previously allocated to one or more demands in order to free up capacity required for another demand, so as to optimize overall network capacity utilization.

    摘要翻译： 用于确定光网络中的主路径和/或恢复路径的分布式预计算技术。 本发明提供了许多部分和完全异步的分布式预计算算法，其可以例如由全光网络的节点来实现，其中网络链路在光信号波长和故障隔离方面受到约束。 给定的分布式预计算算法可以包括第一阶段，在第一阶段中，在不解决争用的情况下尽可能地分配用于容量需求的路径，以及解决相同容量的需求之间的争用的第二阶段。 第一阶段可以实施争用锁定机制，其锁定给定需求的主要路径以防止其他需求竞争相同的容量;以及链路容量控制机制，其涉及将链路状态表存储在一个或多个节点处，所述链路 状态表列出了受到故障影响的一些具体故障和需求。 分布式预先计算算法的第二阶段重新路由先前分配给一个或多个需求的路径，以便释放另一个需求所需的容量，从而优化整体网络容量利用率。