Filtering of malformed data packets in wireless communication
    1.
    发明授权
    Filtering of malformed data packets in wireless communication 失效
    在无线通信中过滤畸形数据包

    公开(公告)号:US08477759B2

    公开(公告)日:2013-07-02

    申请号:US11240025

    申请日:2005-09-30

    IPC分类号: H04L12/66

    摘要: Packet filtering is performed to detect for and discard malformed data packets that would be discarded by a wireless network if received from a wireless device. A cdma2000 network may restart a PPP session upon receiving (1) malformed data packets with source IPv4 addresses different from IPv4 addresses (if any) assigned to the wireless device or (2) malformed data packets with source IPv6 addresses having prefixes different from prefixes (if any) associated with the PPP session. The wireless device may receive data packets from a terminal equipment coupled to the wireless device and/or applications running at the wireless device. The wireless device may filter these data packets with packet filters to detect for malformed data packets with invalid IPv4 addresses, invalid IPv6 address prefixes, and so on. The wireless device discards malformed data packets and sends the remaining data packets to the wireless network.

    摘要翻译: 执行分组过滤以检测和丢弃由无线设备接收到的由无线网络丢弃的格式不正确的数据分组。 cdma2000网络在接收到(1)分配给无线设备的IPv4地址(如果有的话)不同的源IPv4地址的格式不正确的数据包时,可以重新启动PPP会话,或者(2)源IPv6地址具有与前缀不同的前缀的格式不正确的数据包( 如果有的话)与PPP会话相关联。 无线设备可以从耦合到无线设备的终端设备和/或在无线设备上运行的应用接收数据分组。 无线设备可以使用分组过滤器对这些数据分组进行过滤,以检测具有无效IPv4地址的错误数据分组,无效的IPv6地址前缀等。 无线设备丢弃格式不正确的数据包,并将剩余的数据包发送到无线网络。

    Maintaining data connectivity for handoffs between compression-enabled and compression-disabled communication systems
    4.
    发明授权
    Maintaining data connectivity for handoffs between compression-enabled and compression-disabled communication systems 失效
    维护压缩和压缩禁用通信系统之间切换的数据连接

    公开(公告)号:US07668545B2

    公开(公告)日:2010-02-23

    申请号:US10956546

    申请日:2004-10-01

    IPC分类号: H04W36/00 H04W4/00 H04L12/56

    CPC分类号: H04W28/16 H04W36/14 H04W80/02

    摘要: Methods and apparatus are presented for enabling data connectivity when a handoff occurs between one communication network and another communication network, wherein the communication networks belong to different air interface standards. The mobile station triggers a Compression Control Protocol (CCP) request message to a tethered device if the mobile station determines that a new PDSN is not enabled to perform the CCP protocol. The tethered device then responds with a CCP request message with or without new negotiation parameters. The mobile station forwards the CCP request message to the new PDSN. Since the new PDSN is not enabled with CCP, the new PDSN responds with a CCP rejection message. The rejection message is passed from the mobile station back to the tethered device. The tethered device then sends uncompressed data packets to the PDSN.

    摘要翻译: 呈现当在一个通信网络和另一个通信网络之间发生切换时实现数据连接的方法和装置,其中通信网络属于不同的空中接口标准。 如果移动台确定新的PDSN未被启用以执行CCP协议,则移动台触发压缩控制协议(CCP)请求消息到系留设备。 该系留设备然后用或不带有新的协商参数的CCP请求消息进行响应。 移动台将CCP请求消息转发到新的PDSN。 由于新的PDSN未启用CCP,因此新PDSN以CCP拒绝消息作出响应。 拒绝消息从移动台传递回系留设备。 系留设备然后将未压缩的数据包发送到PDSN。

    Systems and methods for early determination of network support for mobile IP
    5.
    发明授权
    Systems and methods for early determination of network support for mobile IP 有权
    早期确定移动IP网络支持的系统和方法

    公开(公告)号:US07590408B2

    公开(公告)日:2009-09-15

    申请号:US10318778

    申请日:2002-12-12

    摘要: In a wireless communication system, a method for early determination of network support for Mobile IP is disclosed. A mobile node is in communication with a wireless network. Then a test is performed for a disconnect condition wherein the disconnect condition is an early indication of network non-support for Mobile IP as identified by at least a requirement for authentication. Early indication relates to identification of the non-support for Mobile IP prior to or during network packet connection. If the disconnect condition is found, the mobile node disconnects from the wireless network. If the disconnect condition is not found, the mobile node stays connected to the wireless network.

    摘要翻译: 在无线通信系统中,公开了一种用于早期确定移动IP的网络支持的方法。 移动节点与无线网络通信。 然后对于断开状态执行测试,其中断开条件是至少由认证要求所标识的移动IP的网络不支持的早期指示。 早期指示涉及在网络分组连接之前或期间识别对移动IP的不支持。 如果发现断开连接条件,移动节点将断开与无线网络的连接。 如果没有找到断开连接条件,则移动节点保持连接到无线网络。

    Method for efficiently generating privacy addresses
    7.
    发明授权
    Method for efficiently generating privacy addresses 有权
    有效生成隐私地址的方法

    公开(公告)号:US08429305B2

    公开(公告)日:2013-04-23

    申请号:US11859766

    申请日:2007-09-22

    IPC分类号: G06F15/16

    摘要: A method for generating privacy IP address includes pregenerating a first privacy address and generating a second privacy address when the first privacy address is allocated to an application. Addresses may be shared by applications or unique to a single application. A deprecation timer is started when an application binds to an allocated privacy address, now when the privacy address is generated. To minimize traffic flow disruptions a deprecated address is not deleted while the address remains in use. By pregenerating privacy addresses, an address can be promptly allocated to an application with out delays incurred by confirming that a new address is not a duplicate on the system. The method can be implicated on any device using privacy addresses, including mobile handset devices.

    摘要翻译: 用于生成隐私IP地址的方法包括:当第一隐私地址被分配给应用时,预先产生第一隐私地址并产生第二隐私地址。 地址可能由应用程序共享或单个应用程序唯一。 当应用程序绑定到分配的隐私地址时,现在当生成隐私地址时,将启动淘汰计时器。 为了最大限度地减少流量中断,在地址保持使用状态时,不会删除已弃用的地址。 通过预生成隐私地址,可以通过确认新的地址在系统上不重复而将地址及时分配给应用程序,并出现延迟。 该方法可以涉及使用隐私地址的任何设备,包括移动手持机设备。

    Method and apparatus for selective examination of PPP packets for renegotiation of a PPP link on a Um interface
    8.
    发明授权
    Method and apparatus for selective examination of PPP packets for renegotiation of a PPP link on a Um interface 有权
    用于在Um接口上重新协商PPP链路的PPP数据包选择性检查的方法和装置

    公开(公告)号:US08098617B2

    公开(公告)日:2012-01-17

    申请号:US12173288

    申请日:2008-07-15

    IPC分类号: H04B7/212

    摘要: A method and system that provides for efficient re-synchronization of a PPP link on a Um interface is provided. When the PPP link is connected, if an indication that the communications of the mobile station is associated with a new network server is detected, only the Um interface will undergo PPP configuration renegotiation. The method and system does not require the examination of all data packets for determining whether PPP configuration renegotiation is required.

    摘要翻译: 提供了一种在Um接口上提供PPP链路有效重新同步的方法和系统。 当连接PPP链路时,如果检测到移动台的通信与新的网络服务器相关联的指示,则只有Um接口将经历PPP配置重新协商。 该方法和系统不需要检查所有数据包,以确定是否需要PPP配置重新协商。

    System and method for transparent mobile IP registration within PPP negotiation
    9.
    发明授权
    System and method for transparent mobile IP registration within PPP negotiation 有权
    PPP协商中透明移动IP注册的系统和方法

    公开(公告)号:US08009588B2

    公开(公告)日:2011-08-30

    申请号:US12021261

    申请日:2008-01-28

    IPC分类号: H04L12/28

    摘要: A system and method for transparent Mobile IP registration within PPP negotiation uses a mobile telephone to relay messages between terminal equipment and a Foreign Agent (FA). An IPCP configuration request message by the terminal equipment requesting the assignment of an IP address is modified by the mobile telephone to delete the IP address request option. Other configuration options are forwarded unchanged by the mobile telephone to the peer/network. The peer/network responds with an acknowledgement of the requested configuration options and flow control between the terminal and the MT is asserted to permit Mobile IP registration. In the course of Mobile IP registration, and IP address is assigned to the mobile unit by the FA. Upon completion of the Mobile IP registration, flow control between the mobile telephone and the terminal is deasserted and the IP address assigned during Mobile IP registration is provided to the terminal equipment. In addition, the previously requested options may also be acknowledged.

    摘要翻译: 在PPP协商中透明移动IP注册的系统和方法使用移动电话在终端设备和外部代理(FA)之间中继消息。 由移动电话修改由请求分配IP地址的终端设备的IPCP配置请求消息,以删除IP地址请求选项。 其他配置选项由移动电话不变地转发给对等体/网络。 对等体/网络响应所请求的配置选项的确认,终端和MT之间的流量控制被断言以允许移动IP注册。 在移动IP注册过程中,由FA分配给移动单元的IP地址。 在移动IP注册完成后,移动电话与终端之间的流量控制被解除无效,并且在移动IP注册期间分配的IP地址被提供给终端设备。 此外,还可以确认先前请求的选项。

    Concurrent internet protocol connectivity to an access terminal and a tethered device
    10.
    发明授权
    Concurrent internet protocol connectivity to an access terminal and a tethered device 有权
    与接入终端和系留设备的并发互联网协议连接

    公开(公告)号:US07860088B2

    公开(公告)日:2010-12-28

    申请号:US11394782

    申请日:2006-03-31

    申请人: Marcello Lioy

    发明人: Marcello Lioy

    IPC分类号: H04L12/56

    摘要: Using split interfaces for Internet Protocol version 6 (IPv6) and Internet Protocol version 4 (IPv4), and bridging the IPv4 interface, makes it possible to support a Tethered Device (TD) and an Access Terminal (AT) having concurrent IP connectivity. This configuration enables the support of IP Multimedia Subsystem (IMS) applications in the AT using IPv6 while concurrently supporting general Internet usage on a TD. It is also possible to bridge an IPv6 interface to the TD.

    摘要翻译: 使用互联网协议版本6(IPv6)和互联网协议版本4(IPv4)的拆分接口和桥接IPv4接口,可以支持具有并发IP连接的绑定设备(TD)和接入终端(AT)。 该配置使得能够在使用IPv6的AT中支持IP多媒体子系统(IMS)应用,同时支持TD上的一般互联网使用。 也可以将IPv6接口桥接到TD。