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    • 1. 发明授权
    • Instant activation of point-to point protocol (PPP) connection using existing PPP state
    • 使用现有PPP状态即时激活点对点协议(PPP)连接
    • US06628671B1
    • 2003-09-30
    • US09233382
    • 1999-01-19
    • Richard J. DynarskiMatthew HarperAndrew BezaitisYingchun XuKenneth L. Peirce, Jr.
    • Richard J. DynarskiMatthew HarperAndrew BezaitisYingchun XuKenneth L. Peirce, Jr.
    • H04J322
    • H04L63/08H04L12/2856H04L12/2859H04L63/10H04L69/16H04L69/168H04L69/24
    • A network access server providing remote access to an IP network for a remote client initiates a PPP connection for a remote client quickly, and without requiring re-negotiation of Link Control Protocols and Network Control Protocols. The network access server has a PPP session with the remote client go dormant, for example when the user is a wireless user and goes out of range of a radio tower and associated base station. The network access server does not get rid of the PPP state for the dormant session, but rather switches that PPP state to a new session, such as when the client moves into range of a different radio tower and associated base station and initiates a new active session on the interface to the wireless network. The switching of PPP states may be within a single network access server, or from one network access server to another. This “context switching” of the active PPP session allows the mobile user to seamlessly move about the wireless network without having to re-negotiate Link Control Protocols and Network Control Protocols every time they move out of range of one radio tower and into range of another radio tower.
    • 为远程客户端提供远程访问IP网络的网络访问服务器可以快速启动远程客户端的PPP连接,而无需重新协商链路控制协议和网络控制协议。 网络接入服务器与远程客户端进行PPP会话休眠,例如当用户是无线用户并超出无线电塔和相关基站的范围时。 网络访问服务器不能摆脱休眠会话的PPP状态,而是将PPP状态切换到新会话,例如当客户端移动到不同无线电塔和相关联的基站的范围内并启动新的活动 会话在无线网络的接口。 PPP状态的切换可以在单个网络接入服务器内,或者从一个网络接入服务器到另一个。 有源PPP会话的这种“上下文切换”允许移动用户无缝地移动无线网络,而不必在每次移动超出一个无线电塔的范围并进入另一个无线电塔的范围时重新协商链路控制协议和网络控制协议 无线电塔。
    • 4. 发明授权
    • Radius-based mobile internet protocol (IP) address-to-mobile identification number mapping for wireless communication
    • 用于无线通信的基于半径的移动互联网协议(IP)地址到移动的标识号映射
    • US06466571B1
    • 2002-10-15
    • US09233401
    • 1999-01-19
    • Richard J. DynarskiMatthew HarperYingchun XuAndrew Bezaitis
    • Richard J. DynarskiMatthew HarperYingchun XuAndrew Bezaitis
    • H04L1266
    • H04W8/10H04L61/106H04L63/101H04W8/06H04W12/08H04W80/04
    • A method of finding a mobile wireless communications device when an Internet Protocol (IP) packet from a remote user is sent to the device over an IP network. The mobile device does not have to register with the IP network in order to receive the IP. The method comprises the steps of receiving the IP packet at a home agent associated with a wireless communications network. The IP packet includes an IP address assigned to the device. If there is no current mobility binding record for the mobile device, instead of dropping the packet the home agent sends an access-request packet, containing the IP address, to an authentication server. The authentication server, e.g., a RADIUS server, maintains a table mapping the IP address for the device to an identification number uniquely associated with the device, such as the device's International Mobile Subscriber Identity number. The authentication server sends an access-accept packet to the home agent in the event that the device is authorized to receive the IP packet, in which case the access-accept packet includes the identification information. The home agent uses the identification number to locate, page and automatically connect the wireless device to the IP network via an InterWorking Unit (IWU) configured as a IP network access server.
    • 当来自远程用户的因特网协议(IP)分组通过IP网络发送到设备时,找到移动无线通信设备的方法。 移动设备不必向IP网络注册,以便接收IP。 该方法包括以下步骤:在与无线通信网络相关联的归属代理处接收IP分组。 IP分组包括分配给设备的IP地址。 如果移动设备没有当前的移动性绑定记录,则代理丢弃该分组,归属代理将包含该IP地址的接入请求分组发送到认证服务器。 认证服务器(例如,RADIUS服务器)维护将设备的IP地址映射到与设备唯一相关联的标识号码(例如设备的国际移动订户身份号码)的表格。 在设备被授权接收IP分组的情况下,认证服务器向归属代理发送接入接受分组,在这种情况下,接入分组包括标识信息。 归属代理使用识别号码通过配置为IP网络接入服务器的互通单元(IWU)来定位,寻呼和自动将无线设备连接到IP网络。
    • 5. 发明授权
    • Dynamic allocation of wireless mobile nodes over an internet protocol (IP) network
    • 通过互联网协议(IP)网络动态分配无线移动节点
    • US06970443B2
    • 2005-11-29
    • US09863170
    • 2001-05-22
    • Richard J. DynarskiYingchun XuAndrew BezaitisWayne A. Cichosz
    • Richard J. DynarskiYingchun XuAndrew BezaitisWayne A. Cichosz
    • H04L29/06H04Q7/24
    • H04L61/106H04L63/08H04L67/14H04L67/141H04W8/26H04W68/00H04W80/04
    • A method is described of automatically locating and connecting a mobile wireless communications device to a packet-switched network such as the Internet. An Internet Protocol (IP) packet from a terminal on the network, destined for receipt by the mobile device, is received at a home agent acting as a gateway or router linking the packet switched network to a second network, such as LAN, coupled to a wireless communications network. The home agent transmits an access-request message to an authentication server. The access-request message includes a destination IP address associated with the mobile device found in the IP packet. The authentication server responsively issues an access-accept message to the home agent if the mobile device is authorized to receive the IP packet. The access-accept message comprises (a) information uniquely identifying said device, such as the IMSI/ESN number for the device, and (b) information identifying a network to use to locate said device. The home agent issues a message containing the information uniquely identifying the device to a mobile node location server. The mobile node location server maintains a table mapping IP addresses for a plurality of mobile communication devices to information uniquely identifying the devices. In the event that the mobile node location server does not find an IP address for the device in the table, the device is paged via the wireless communications network. In response to the page, the mobile device dials into the wireless communications network and second network and initiates a connection to the packet switched network whereby the IP packet is transmitted to the device.
    • 描述了一种自动地将移动无线通信设备定位并连接到分组交换网络(诸如因特网)的方法。 来自网络终端的互联网协议(IP)数据包,发往移动设备的接收,在作为将分组交换网络连接到第二网络(如LAN)的网关或路由器的归属代理处接收,耦合到 无线通信网络。 归属代理向认证服务器发送访问请求消息。 访问请求消息包括与IP分组中发现的移动设备相关联的目的地IP地址。 如果移动设备被授权接收IP分组,则认证服务器响应地向归属代理发出访问接受消息。 访问接受消息包括(a)唯一地识别所述设备的信息,诸如设备的IMSI / ESN号码,以及(b)标识用于定位所述设备的网络的信息。 归属代理向移动节点位置服务器发出包含唯一地标识该设备的信息的消息。 移动节点定位服务器维护将多个移动通信设备的IP地址映射到唯一地识别设备的信息的表。 在移动节点定位服务器没有在表中找到设备的IP地址的情况下,通过无线通信网络寻呼设备。 响应于该页面,移动设备拨入无线通信网络和第二网络,并发起到分组交换网络的连接,从而将IP分组传送到设备。
    • 6. 发明授权
    • Touch tone replacement for internet telephony
    • 触摸音更换互联网电话
    • US06757276B1
    • 2004-06-29
    • US09198827
    • 1998-11-24
    • Matthew HarperRichard J. DynarskiTimothy G. MortsolfKenneth L. Peirce, Jr.
    • Matthew HarperRichard J. DynarskiTimothy G. MortsolfKenneth L. Peirce, Jr.
    • H04L1264
    • H04M3/18H04M7/1295
    • Tones that are generated by a telephone or PC (such as DTMF tones) and subject to loss or noise during generation or during transmission along a medium are detected and replaced with substantially noise-free and distortionless digital signals. In one embodiment, the replacement of the tones is done in a modem embodied in an Internet telephony Gateway/Terminal, such as in a network access server coupling a time division multiplexed telephone line to a packet-switched network. The replacement of the tones may also be performed in any suitable device that provides an interface between a time division multiplexed transmission medium and a packet switched data network, such as in the modems of a cellular telephone network to Internet network access server.
    • 由电话或PC产生的音调(如DTMF音调),并在发生过程中或在传输过程中遭受损失或噪声,并被基本上无噪声和无失真的数字信号所检测并替代。 在一个实施例中,音调的替换在互联网电话网关/终端中体现的调制解调器中完成,诸如将时分多路复用的电话线耦合到分组交换网络的网络接入服务器。 音调的替换也可以在提供时分复用传输介质和分组交换数据网络之间的接口的任何合适的设备中执行,例如在蜂窝电话网络的调制解调器到因特网网络接入服务器中。
    • 7. 发明授权
    • Dynamic allocation of wireless mobile nodes over an internet protocol (IP) network
    • US06272129B1
    • 2001-08-07
    • US09233381
    • 1999-01-19
    • Richard J. DynarskiYingchun XuAndrew BezaitisWayne A. Cichosz
    • Richard J. DynarskiYingchun XuAndrew BezaitisWayne A. Cichosz
    • H04L1266
    • H04L61/106H04L63/08H04L67/14H04L67/141H04W8/26H04W68/00H04W80/04
    • A method is described of automatically locating and connecting a mobile wireless communications device to a packet-switched network such as the Internet. An Internet Protocol (IP) packet from a terminal on the network, destined for receipt by the mobile device, is received at a home agent acting as a gateway or router linking the packet switched network to a second network, such as LAN, coupled to a wireless communications network. The home agent transmits an access-request message to an authentication server. The access-request message includes a destination IP address associated with the mobile device found in the IP packet. The authentication server responsively issues an access-accept message to the home agent if the mobile device is authorized to receive the IP packet. The access-accept message comprises (a) information uniquely identifying said device, such as the IMSI/ESN number for the device, and (b) information identifying a network to use to locate said device. The home agent issues a message containing the information uniquely identifying the device to a mobile node location server. The mobile node location server maintains a table mapping IP addresses for a plurality of mobile communication devices to information uniquely identifying the devices. In the event that the mobile node location server does not find an IP address for the device in the table, the device is paged via the wireless communications network. In response to the page, the mobile device dials into the wireless communications network and second network and initiates a connection to the packet switched network whereby the IP packet is transmitted to the device.