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    Allocation method and apparatus for reusing network resources in a wireless communication system
    3.
    发明授权
    Allocation method and apparatus for reusing network resources in a wireless communication system 失效
    在无线通信系统中重用网络资源的分配方法和装置

    公开(公告)号：US5781536A

    公开(公告)日：1998-07-14

    申请号：US468155

    申请日：1995-06-06

    申请人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

    发明人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

    IPC分类号： H04B1/713 ,  H04B1/715 ,  H04L12/28 ,  H04L12/56 ,  H04W16/12 ,  H04W28/26 ,  H04W72/00 ,  H04W84/12 ,  H04W88/08 ,  H04Q7/36

    CPC分类号： H04W28/26 ,  H04B1/713 ,  H04B1/715 ,  H04B2001/7152 ,  H04W16/12 ,  H04W28/16 ,  H04W60/00 ,  H04W64/006 ,  H04W72/00 ,  H04W84/12 ,  H04W88/04 ,  H04W88/08

    摘要： In a wireless communication system (106), base stations (118, 120) are connected to a backbone network (116) such as a wired LAN and act as access points and relays for remote stations (128, 132, 136). A remote station registers and performs bidirectional communication with one of the base stations designated as its home base station. Base stations have overlapping coverage areas where a remote station is within reception range of several base stations. Such communication system may for instance be a multicell radioLAN using frequency hopping signaling. The method allows reuse of a limited number of network resources such as frequency hopping patterns and assign the same resource to several active base stations. Upon request from a base station, a network controller (110) connected to the backbone network computes a distance index between the requesting base station and the other active base stations and assigns to the requesting base station the same network resource as the one assigned to another base station with the highest distance index. Information about cells overlaps is centralized in a control database (109) and used by the network controller to compute distance indexes.

    摘要翻译： 在无线通信系统（106）中，基站（118,120）连接到诸如有线LAN的骨干网络（116），并且用作远程站（128,132,136）的接入点和中继站。 远程站注册并与指定为其家庭基站的基站之一进行双向通信。 基站具有重叠的覆盖区域，其中远程站在几个基站的接收范围内。 这样的通信系统可以例如是使用跳频信令的多单元无线LAN。 该方法允许重用有限数量的网络资源，例如跳频模式，并将相同的资源分配给几个活动基站。 根据来自基站的请求，连接到骨干网的网络控制器（110）计算请求基站与其他有效基站之间的距离索引，并向请求基站分配与分配给另一个基站的相同的网络资源 基站距离指数最高。 关于细胞重叠的信息集中在控制数据库（109）中，由网络控制器用于计算距离指数。

    Allocation method and apparatus for reusing network resources in a wireless communication system
    4.
    发明授权
    Allocation method and apparatus for reusing network resources in a wireless communication system 失效
    在无线通信系统中重用网络资源的分配方法和装置

    公开(公告)号：US06597671B1

    公开(公告)日：2003-07-22

    申请号：US09140213

    申请日：1998-08-26

    申请人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

    发明人： Hamid Ahmadi ,  David Bantz ,  Frederic Bauchot ,  Colin Harrison ,  Arvind Krishna ,  Jose Louis Martinez ,  Kadathur Natarajan ,  Michelle Wetterwald

    IPC分类号： H04J1306

    CPC分类号： H04W28/26 ,  H04B1/713 ,  H04B1/715 ,  H04B2001/7152 ,  H04W16/12 ,  H04W28/16 ,  H04W60/00 ,  H04W64/006 ,  H04W72/00 ,  H04W84/12 ,  H04W88/04 ,  H04W88/08

    摘要： In a wireless communication system (106), base stations (118, 120) are connected to a backbone network (116) such as a wired LAN and act as access points and relays for remote stations (128, 132, 136). A remote station registers and performs bidirectional communication with one of the base stations designated as its home base station. Base stations have overlapping coverage areas where a remote station is within reception range of several base stations. Such communication system may for instance be a multicell radio LAN using frequency hopping signaling. The method allows to reuse a limited number of network resources such as frequency hopping patterns and assign the same resource to several active base stations. Upon request from a base station, a network controller (110) connected to the backbone network computes a distance index between the requesting base station and the other active base stations and assigns to the requesting base station the same network resource as the one assigned to another base station with the highest distance index. Information about cells overlaps is centralized in a control database (109) and used by the network controller to compute distance indexes.

    摘要翻译： 在无线通信系统（106）中，基站（118,120）连接到诸如有线LAN的骨干网络（116），并且用作远程站（128,132,136）的接入点和中继站。 远程站注册并与指定为其家庭基站的基站之一进行双向通信。 基站具有重叠的覆盖区域，其中远程站在几个基站的接收范围内。 这种通信系统可以例如是使用跳频信令的多单元无线电LAN。 该方法允许重用有限数量的网络资源，例如跳频模式，并将相同的资源分配给多个活动基站。 根据来自基站的请求，连接到骨干网的网络控制器（110）计算请求基站与其他有效基站之间的距离索引，并向请求基站分配与分配给另一个基站的相同的网络资源 基站距离指数最高。 关于细胞重叠的信息集中在控制数据库（109）中，由网络控制器用于计算距离指数。

    Adaptive medium access control scheme for wireless LAN
    6.
    发明授权
    Adaptive medium access control scheme for wireless LAN 失效
    无线局域网的自适应媒体接入控制方案

    公开(公告)号：US5384777A

    公开(公告)日：1995-01-24

    申请号：US49052

    申请日：1993-04-19

    申请人： Hamid Ahmadi ,  David F. Bantz ,  Frederic J. Bauchot ,  Arvind Krishna ,  Richard O. La Maire ,  Kadathur S. Natarajan

    发明人： Hamid Ahmadi ,  David F. Bantz ,  Frederic J. Bauchot ,  Arvind Krishna ,  Richard O. La Maire ,  Kadathur S. Natarajan

    IPC分类号： H04J3/00 ,  H04B7/24 ,  H04J3/16 ,  H04L12/28 ,  H04L12/56 ,  H04J3/26 ,  H04L5/22

    CPC分类号： H04W74/02 ,  H04W48/12 ,  H04W84/12

    摘要： A Medium Access (MAC) Protocol is utilized for wireless radio access for a plurality of remote stations to a base station on a LAN. There is a time division fixed frame structure in which time is slotted, and time slots are grouped into fixed frames consisting of data and control subframes or periods. The fixed frame structure consists of three periods (A, B, and C) along with their respective headers. The first period, the A period, is used exclusively for data transfer from the base station to the remote stations. The following period, the B period, is used for contention-free data transfer from the remote stations to the base station. The allocation of the data slots in the A and B periods is performed by the base station. The last period of the frame, designated as the C period, is used for the transmission of reservation requests and data from the remote stations to the base station in a random-access contention mode using a slotted Aloha protocol. The duration of the three periods may be varied using a movable boundary technique.

    摘要翻译： 媒体接入（MAC）协议用于多个远程站到LAN上的基站的无线电接入。 存在时隙固定的帧结构，时隙被分段，时隙被分组成由数据和控制子帧或周期组成的固定帧。 固定框架结构由三个周期（A，B和C）及其各自的标题组成。 第一个时期，即A期，专门用于从基站到远程站的数据传输。 以下周期，B周期，用于从远程站到基站的无争用数据传输。 A和B周期中的数据时隙的分配由基站执行。 指定为C周期的帧的最后一个周期用于使用时隙Aloha协议以随机接入争用模式从远程站向基站发送预留请求和数据。 可以使用可移动边界技术来改变三个周期的持续时间。

    Dynamic selection of network providers
    10.
    发明授权
    Dynamic selection of network providers 失效
    动态选择网络提供商

    公开(公告)号：US06243754B1

    公开(公告)日：2001-06-05

    申请号：US09227769

    申请日：1999-01-08

    申请人： Roch A. Guerin ,  Arvind Krishna ,  Vinod Gerard John Peris ,  Dinesh Chandra Verma

    发明人： Roch A. Guerin ,  Arvind Krishna ,  Vinod Gerard John Peris ,  Dinesh Chandra Verma

    IPC分类号： G06F1516

    CPC分类号： H04L45/00 ,  H04L29/06 ,  H04L67/20 ,  H04L69/329

    摘要： A method, apparatus and system is provided by which two or more cooperating end-users of the Internet and/or other network can dynamically select and use a single Internet or other network service provider (ISP) from among a multitude of ISPs based on the application requirements. The service provider may be selected in a dynamic fashion. This overcomes the problem wherein traditionally most end-users, whether they are individuals or organizations, are connected to the Internet or other network through a single Internet and/or other network service provider. However, users generally may have more than a single connection to the Internet and/or other network. In such cases the routing of traffic over these multiple connections is handled by IP routers based on the routing information that they exchange with their peers. This information is relatively static in nature and is typically based on the state of links that interconnect the different routers. The invention provides a mechanism for the end-user to take advantage of different rates or services that might be provided by competing Internet and/or other network service providers. Furthermore, there are cases where the choice of which provider to use depends on the application. Thus this invention enables cooperating users (or sites of an organization) to dynamically select different providers on an application by application basis.

    摘要翻译： 提供了一种方法，装置和系统，通过该方法，装置和系统，互联网和/或其他网络的两个或多个合作的最终用户可以基于多个ISP从动态地选择和使用单个互联网或其他网络服务提供商（ISP） 应用要求。 可以以动态方式选择服务提供商。 这克服了传统上大多数终端用户（无论是个人还是组织）通过单个因特网和/或其他网络服务提供商连接到因特网或其他网络的问题。 然而，用户通常可以具有多于一个到因特网和/或其他网络的单一连接。 在这种情况下，通过这些多个连接的流量路由由IP路由器根据与其对等体交换的路由信息​​进行处理。 该信息本质上是相对静态的，并且通常基于互连不同路由器的链路的状态。 本发明提供了一种用于终端用户利用可能由竞争的因特网和/或其他网络服务提供商提供的不同速率或服务的机制。 此外，有些情况下，哪个供应商的选择取决于应用程序。 因此，本发明使得协作用户（或组织的站点）能够通过应用程序在应用程序上动态地选择不同的提供者。