Session transfer in a communication network

    公开(公告)号:US09888409B2

    公开(公告)日:2018-02-06

    申请号:US14737573

    申请日:2015-06-12

    摘要: A method and apparatus for transferring a session from a packet switched access network to a circuit switched access network. A Mobility Management Entity receives a service type indicator from a gateway node. The service type indicator indicates a type of service for the session, and is associated with bearers used for the session. The Mobility Management Entity subsequently receives, from an eNodeB, an indication that the session is to be transferred from the packet switched network to the circuit switched access network. The Mobility Management Entity determines the bearers associated with the session using the service type indicator, and initiates transfer of the session using those bearers. This ensures that the correct bearers are transferred regardless of whether or not identifiers such as QCI values have been ascribed to other types of service.

    METHOD OF ACCESS PROVISION
    3.
    发明申请
    METHOD OF ACCESS PROVISION 有权
    访问方式

    公开(公告)号:US20160255124A1

    公开(公告)日:2016-09-01

    申请号:US15148411

    申请日:2016-05-06

    IPC分类号: H04L29/06 H04W8/06

    摘要: A method is proposed for providing a mobile terminal associated with a user with access to a visited Internet Protocol based mobile communication network. The mobile terminal generates a network information element that comprises a home network identifying element that identifies a home network of the user, and a domain name of the visited IP based mobile communication network as a base domain identifier. The mobile terminal then provides this special network information element to visited IP based mobile communication network, which executes a subscription generating procedure for generating a subscription for the user upon recognizing the special network information element and provides the mobile terminal access based on the generated subscription.

    摘要翻译: 提出了一种用于向与用户相关联的移动终端提供对被访问的基于因特网协议的移动通信网络的访问的方法。 移动终端生成网络信息元素,该网络信息元素包括识别用户的归属网络的归属网络识别元素以及基于访问IP的移动通信网络的域名作为基本域标识符。 然后,移动终端将该特殊网络信息元素提供给访问的基于IP的移动通信网络,该移动通信网络在识别特殊网络信息元素时执行用于生成用户订阅的订阅生成过程,并且基于生成的订阅来提供移动终端访问。

    Key Management in a Communication Network
    4.
    发明申请
    Key Management in a Communication Network 有权
    通信网络中的密钥管理

    公开(公告)号:US20140351595A1

    公开(公告)日:2014-11-27

    申请号:US14454936

    申请日:2014-08-08

    IPC分类号: H04L29/06 H04L9/08

    摘要: A method and apparatus for key management in a communication network. A Key Management Server (KMS) receives from a first device a request for a token associated with a user identity, the user identity being associated with a second device. The KMS then sends the requested token and a user key associated with the user to the first device. The KMS subsequently receives the token from the second device. A second device key is generated using the user key and a modifying parameter associated with the second device. The modifying parameter is available to the first device for generating the second device key. The second device key is then sent from the KMS to the second device. The second device key can be used by the second device to authenticate itself to the first device, or for the first device to secure communications to the second device.

    摘要翻译: 一种用于通信网络中密钥管理的方法和装置。 密钥管理服务器(KMS)从第一设备接收与用户身份相关联的令牌的请求,所述用户身份与第二设备相关联。 然后,KMS将所请求的令牌和与用户相关联的用户密钥发送到第一设备。 KMS随后从第二个设备接收令牌。 使用用户密钥和与第二设备相关联的修改参数来生成第二设备密钥。 修改参数可用于第一设备用于生成第二设备密钥。 然后,第二个设备密钥从KMS发送到第二个设备。 第二设备密钥可以由第二设备用于向第一设备或第一设备认证自身以确保与第二设备的通信。

    IMS emergency calls for roaming UEs

    公开(公告)号:US11146939B2

    公开(公告)日:2021-10-12

    申请号:US16415119

    申请日:2019-05-17

    摘要: A method in a proxy call session control function, P-CSCF, of handling an unauthenticated emergency call originating from a roaming user equipment that is not attached to the P-CSCF. The P-CSCF receives a session initiation protocol (SIP) REGISTER request from the UE, where the REGISTER request relating to the emergency registration. The P-CSCF determines an IP address of the UE. The P-CSCF sends an identity query to a policy and charging rules function (PCRF) indicating the IP address of the UE and requesting other identifiers of the UE. The P-CSCF receives one or more other identifiers of the UE from the PCRF. The P-CSCF obtains a TEL and/or SIP uniform resource identifier (URI) for the UE on the basis of at least one of the one or more other identifiers. The P-CSCF sends a 200 OK response to the UE in response to the SIP REGISTER request, where the 200 OK response includes the TEL and/or SIP URI. Also provided are corresponding methods in other nodes and for authenticated emergency calls, and apparatus for implementing the methods.