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    METHOD AND APPARATUS FOR KEEPING NETWORK ADDRESS TRANSLATION MAPPING ALIVE
    1.
    发明申请
    METHOD AND APPARATUS FOR KEEPING NETWORK ADDRESS TRANSLATION MAPPING ALIVE 审中-公开

    公开(公告)号：US20190028429A1

    公开(公告)日：2019-01-24

    申请号：US16142978

    申请日：2018-09-26

    申请人： Huawei Technologies Co., Ltd.

    发明人： Yan LIU ,  Yang XIAO

    IPC分类号： H04L29/12 ,  H04L12/26

    CPC分类号： H04L61/2521 ,  H04L43/12 ,  H04L61/2514 ,  H04L61/2553 ,  H04L61/2557 ,  H04L63/0236 ,  H04L67/12

    摘要： A method and an apparatus for keeping network address translation mapping alive are provided. The method includes: receiving, by a network address translation NAT device, a probe request sent by an internal network device; sending a probe response to the internal network device, where the probe response carries indication information, and the indication information indicates that the internal network device does not actively initiate a heartbeat message to keep network address translation mapping alive; allocating at least two public network addresses to the internal network device from an address resource pool, and using in each time period of a subsequent session process between the internal network device and an external network device, one of the at least two public network addresses as a current active address in the time period, to map the private network address of the internal network device to the current active address.

    Method, system and apparatus for keeping session table alive in net address translation apparatus
    2.
    发明授权
    Method, system and apparatus for keeping session table alive in net address translation apparatus 有权

    公开(公告)号：US10021068B2

    公开(公告)日：2018-07-10

    申请号：US14854995

    申请日：2015-09-15

    申请人： Huawei Technologies Co., Ltd.

    发明人： Wei Li

    IPC分类号： H04L29/12 ,  H04L29/06 ,  H04L12/751

    CPC分类号： H04L61/2553 ,  H04L29/12471 ,  H04L45/026 ,  H04L61/2564 ,  H04L65/1016

    摘要： Embodiments of the disclosure provide a method for keeping a session table alive in a Network Address Translation, NAT, apparatus, including: creating a hello session table by an Access Border Gateway Function, A_BGF, apparatus; creating a hello message by the A_BGF apparatus according to the hello session table; sending the hello message by the A_BGF apparatus to the NAT apparatus; receiving the hello message by the NAT apparatus; and updating a session table corresponding to the hello message by the NAT apparatus. Embodiments of the disclosure also provide a system and apparatus for keeping a session table alive in an NAT apparatus. Application of the embodiments of the disclosure keeps the session table alive in the NAT apparatus of an IP Multimedia Subsystem, IMS, ensures an unblocked registration path, and prevents the user conversation being interrupted due to an aged session table of the NAT apparatus.

    Determining expiration time of bindings for network address translation devices
    6.
    发明授权
    Determining expiration time of bindings for network address translation devices 有权

    公开(公告)号：US09742728B2

    公开(公告)日：2017-08-22

    申请号：US13221659

    申请日：2011-08-30

    申请人： Tolga Asveren

    发明人： Tolga Asveren

    IPC分类号： H04L29/12

    CPC分类号： H04L61/2553

    摘要： Methods and apparatuses, including computer program products, are described for determining expiration time of bindings for NAT devices. A first device receives a first request including a first source IP address/port pair of a first NAT binding, and transmits a response. The first device receives a second request including a second source IP address/port pair of a second NAT binding, and transmits a response. The first device sets a refresh time T1 of the first NAT binding to be shorter than an expected minimum expiration time of the first NAT binding, transmits one or more messages via the second NAT binding where a sending interval time T2 of the second NAT binding is longer than T1, increments T2 when a response is received, and if a response to any of the messages is not received, sets T1 equal to the last T2 value for which a response was received.

    On-premises data access and firewall tunneling
    8.
    发明授权
    On-premises data access and firewall tunneling 有权
    本地数据访问和防火墙隧道

    公开(公告)号：US09531678B1

    公开(公告)日：2016-12-27

    申请号：US14514244

    申请日：2014-10-14

    申请人： Progress Software Corporation

    发明人： John Alan Hensley ,  Robert Fischer

    IPC分类号： H04L29/06

    CPC分类号： H04L63/029 ,  H04L61/2553 ,  H04L61/256 ,  H04L63/0272 ,  H04L63/08 ,  H04L63/10 ,  H04L67/02 ,  H04L67/141 ,  H04L67/145 ,  H04L67/42

    摘要： A system and method for tunneling through a network separation device such as a firewall or a Network Address Translator including a first server receiving an access request from a client device to communicate with a host device, where the host device is behind the network separation device. The first server sending a message to a second server in response to receiving the access request, the message including host data for the host device. The second server is configured to send a notification to the host device, and the notification includes instructions for the host device to initialize a pass-through channel with the first server. The first server receiving a pass-through initialization request from the host device and establishing the pass-through channel for communication between the client device and the host device in response to receiving the pass-through initialization request.

    摘要翻译： 一种用于通过诸如防火墙的网络分离设备或网络地址转换器隧道穿过的系统和方法，包括从客户端设备接收访问请求的第一服务器以与主机设备通信，其中主机设备在网络分离设备之后。 第一服务器响应于接收到访问请求向第二服务器发送消息，该消息包括主机设备的主机数据。 第二服务器被配置为向主机设备发送通知，并且该通知包括主机设备用于与第一服务器初始化直通通道的指令。 所述第一服务器响应于接收到所述传递初始化请求，从所述主机设备接收传递初始化请求并建立所述客户端设备和所述主机设备之间的通信的传递通道。

    SYSTEMS AND METHODS FOR APPLICATION CONTROLLED NETWORK SELECTION BETWEEN NARROWBAND AND BROADBAND WIRELESS NETWORKS
    10.
    发明申请
    SYSTEMS AND METHODS FOR APPLICATION CONTROLLED NETWORK SELECTION BETWEEN NARROWBAND AND BROADBAND WIRELESS NETWORKS 有权
    宽带宽带无线网络之间的应用控制网络选择系统与方法

    公开(公告)号：US20160234711A1

    公开(公告)日：2016-08-11

    申请号：US14914002

    申请日：2013-10-23

    申请人： MOTOROLA SOLUTIONS, INC

    发明人： XING WANG ,  JIANG-QIANG LUO ,  JIAN-LONG TAN ,  JACK WONG

    IPC分类号： H04W28/02 ,  H04L12/859 ,  H04L29/08 ,  H04W48/18 ,  H04L29/12

    CPC分类号： H04W28/0215 ,  H04L47/2475 ,  H04L61/2514 ,  H04L61/2553 ,  H04L61/256 ,  H04L61/2592 ,  H04L67/1063 ,  H04W48/16 ,  H04W48/18 ,  H04W76/12 ,  H04W84/12

    摘要： A method, apparatus, and system for application controlled network selection between a broadband network and a narrowband network include operating an application with an end device with a narrowband connection to the end device; acquiring a source broadband connection comprising a source broadband network address; negotiating a peer-to-peer broadband connection with the end device utilizing the narrowband connection to communicate the source broadband network address; utilizing the peer-to-peer broadband connection for data associated with the application responsive to successful negotiating; and managing the peer-to-peer broadband connection using the narrowband connection as a control channel therefor. The narrowband connection can include Digital Mobile Radio (DMR), Land Mobile Radio (LMR), Project 25 (P25), Terrestrial Trunked Radio (TETRA), or the like.

    摘要翻译： 用于在宽带网络和窄带网络之间进行应用控制的网络选择的方法，装置和系统包括：操作具有与终端设备的窄带连接的终端设备的应用; 获取包括源宽带网络地址的源宽带连接; 与使用窄带连接的终端设备协商一个对等宽带连接来传送源宽带网络地址; 响应于成功协商，利用对等宽带连接用于与应用相关联的数据; 以及使用窄带连接来管理对等宽带连接作为其控制信道。 窄带连接可以包括数字移动无线电（DMR），陆地移动无线电（LMR），项目25（P25），地面集群无线电（TETRA）等。