Power saving system in distributed wireless personal area network and method thereof
    1.
    发明授权
    Power saving system in distributed wireless personal area network and method thereof 失效
    分布式无线个域网节能系统及其方法

    公开(公告)号:US07715885B2

    公开(公告)日:2010-05-11

    申请号:US11151517

    申请日:2005-06-14

    IPC分类号: H04M1/00

    摘要: A power saving system in distributed wireless personal area network and a method thereof are disclosed. A PS (Power Save) anchor that provides information about hibernating devices to a beacon group through power save information elements in media access control for a wireless personal area network based on a wireless mobile ad-hoc network. Accordingly, all devices in the given wireless personal area network can schedule their active modes and hibernating modes according to hibernating intervals of destination devices with which the devices want to communicate. This can effectively reduce the necessity of the devices' waiting for the destination devices to awake from the hibernating mode as the devices maintain their idle state, and thus the power consumption of all the devices in the network can effectively be reduced.

    摘要翻译: 公开了分布式无线个域网中的省电系统及其方法。 PS(Power Save)锚,其通过基于无线移动自组织网络的无线个​​人区域网络的媒体访问控制中的节能信息元素向信标群提供关于休眠设备的信息。 因此,给定无线个人区域网络中的所有设备可以根据设备想要通信的目标设备的休眠间隔来调度其活动模式和休眠模式。 这可以有效地减少设备等待目的设备从休眠模式唤醒的必要性,因为设备保持其空闲状态,从而可以有效地减少网络中所有设备的功耗。

    System for dynamically shifting beacons in distributed wireless network and method thereof
    2.
    发明授权
    System for dynamically shifting beacons in distributed wireless network and method thereof 有权
    分布式无线网络中动态移动信标的系统及其方法

    公开(公告)号:US07548521B2

    公开(公告)日:2009-06-16

    申请号:US11185795

    申请日:2005-07-21

    IPC分类号: H04W4/00

    CPC分类号: H04W74/08

    摘要: A system for dynamically shifting beacons in a distributed wireless network and a method thereof are disclosed. In a medium access control for a wireless personal area network based on a mobile ad-hoc network, beacons are shifted to other free lower slots in order to reduce the size of a beacon period. Also, collisions that may occur during the shifting of the beacons are detected and avoided. According to the system and method, the size of the beacon period for transmitting data can sufficiently be secured by dynamically reducing the size of the beacon period without collisions.

    摘要翻译: 公开了一种在分布式无线网络中动态移动信标的系统及其方法。 在用于基于移动自组织网络的无线个​​人区域网络的介质访问控制中,信标被转移到其他空闲的下部时隙,以便减小信标周期的大小。 此外,检测并避免在信标移动期间可能发生的冲突。 根据系统和方法,用于发送数据的信标周期的大小可以通过动态地减小信标周期的大小而没有冲突而得到充分的保证。

    Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network
    3.
    发明授权
    Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network 有权
    媒体访问控制方法以及分布式无线个域网中信道时间预留的系统和方法

    公开(公告)号:US08711830B2

    公开(公告)日:2014-04-29

    申请号:US11266235

    申请日:2005-11-04

    IPC分类号: H04B7/212

    摘要: Disclosed are a method for media access controlling and channel time reservation system and method in distributed wireless personal area networks. A method of media access controlling for a distributed wireless network including at least one device, includes a device of the distributed wireless network, generating a data slot reservation indicator for devices of the same beacon group, and the device, broadcasting the generated data slot reservation indicator. Thus, a slot reservation for communication between devices can be completed in a shorter period of time. Also, capacity of the network can be improved by spatial reuse of channel time.

    摘要翻译: 本发明公开了一种分布式无线个域网中的媒体接入控制和信道时间预约系统及方法。 包括至少一个设备的分布式无线网络的媒体访问控制方法包括分布式无线网络的设备,为相同信标组的设备生成数据时隙预约指示符,并且该设备广播所生成的数据时隙预留 指示符。 因此,可以在更短的时间段内完成设备之间的通信的时隙预留。 此外,可以通过信道时间的空间重用来提高网络的容量。

    Power saving system in distributed wireless personal area network and method thereof
    6.
    发明申请
    Power saving system in distributed wireless personal area network and method thereof 失效
    分布式无线个域网节能系统及其方法

    公开(公告)号:US20050288069A1

    公开(公告)日:2005-12-29

    申请号:US11151517

    申请日:2005-06-14

    摘要: A power saving system in distributed wireless personal area network and a method thereof are disclosed. A PS (Power Save) anchor that provides information about hibernating devices to a beacon group through power save information elements in media access control for a wireless personal area network based on a wireless mobile ad-hoc network. Accordingly, all devices in the given wireless personal area network can schedule their active modes and hibernating modes according to hibernating intervals of destination devices with which the devices want to communicate. This can effectively reduce the necessity of the devices' waiting for the destination devices to awake from the hibernating mode as the devices maintain their idle state, and thus the power consumption of all the devices in the network can effectively be reduced.

    摘要翻译: 公开了分布式无线个域网中的省电系统及其方法。 PS(Power Save)锚,其通过基于无线移动自组织网络的无线个​​人区域网络的媒体访问控制中的节能信息元素向信标群提供关于休眠设备的信息。 因此,给定无线个人区域网络中的所有设备可以根据设备想要通信的目标设备的休眠间隔来调度其活动模式和休眠模式。 这可以有效地减少设备等待目的设备从休眠模式唤醒的必要性,因为设备保持其空闲状态,从而可以有效地减少网络中所有设备的功耗。

    Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network
    7.
    发明申请
    Method for media access controlling and system and method for channel time reservation in distributed wireless personal area network 有权
    媒体访问控制方法以及分布式无线个域网中信道时间预留的系统和方法

    公开(公告)号:US20060198353A1

    公开(公告)日:2006-09-07

    申请号:US11266235

    申请日:2005-11-04

    IPC分类号: H04B7/212

    摘要: Disclosed are a method for media access controlling and channel time reservation system and method in distributed wireless personal area networks. A method of media access controlling for a distributed wireless network including at least one device, includes a device of the distributed wireless network, generating a data slot reservation indicator for devices of the same beacon group, and the device, broadcasting the generated data slot reservation indicator. Thus, a slot reservation for communication between devices can be completed in a shorter period of time. Also, capacity of the network can be improved by spatial reuse of channel time.

    摘要翻译: 本发明公开了一种分布式无线个域网中的媒体接入控制和信道时间预约系统及方法。 包括至少一个设备的分布式无线网络的媒体访问控制方法包括分布式无线网络的设备,为相同信标组的设备生成数据时隙预约指示符,并且该设备广播所生成的数据时隙预留 指示符。 因此,可以在更短的时间段内完成设备之间的通信的时隙预留。 此外,可以通过信道时间的空间重用来提高网络的容量。

    Method and system for filtering spoofed packets in a network
    8.
    发明授权
    Method and system for filtering spoofed packets in a network 有权
    在网络中过滤欺骗性包的方法和系统

    公开(公告)号:US07360245B1

    公开(公告)日:2008-04-15

    申请号:US09907861

    申请日:2001-07-18

    IPC分类号: G06F17/00 H04L9/00

    CPC分类号: H04L63/1466 H04L63/1408

    摘要: A method and system is disclosed for preventing an address spoofing based attack from a private network. The private network has at least one host and at least one router connected therein for transporting at least one packet. An anti-spoofing filter is implemented in each interface of every router. When a packet is received on the interface, the filter determines whether the packet is address spoofed by comparing its source physical address derived from the received packet with expected physical address derived from interface IP address, a subnet mask of the interface, an ARP cache of the interface and a list of physical addresses of neighboring routers formed a priori If the packet is determined to be address spoofed, the received packet is discarded by the filter on the interface.

    摘要翻译: 公开了一种用于防止来自专用网络的基于地址欺骗的攻击的方法和系统。 专用网络具有至少一个主机和连接在其中的至少一个路由器,用于传送至少一个分组。 每个路由器的每个接口都实现了防欺骗过滤器。 当在接口上收到数据包时,过滤器通过将从接收到的数据包导出的源物理地址与从接口IP地址导出的预期物理地址,接口的子网掩码,接口的ARP缓存, 接口和相邻路由器的物理地址列表是先验的。如果分组被确定为地址欺骗,则接收到的报文被接口上的过滤器丢弃。