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    IMS SIGNALLING CORRELATION IN SRVCC SERVICE INTERCEPTION
    1.
    发明申请
    IMS SIGNALLING CORRELATION IN SRVCC SERVICE INTERCEPTION 审中-公开
    IMS在SRVCC服务拦截中的信令关联

    公开(公告)号：WO2017102019A1

    公开(公告)日：2017-06-22

    申请号：PCT/EP2015/080386

    申请日：2015-12-18

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    Inventor： ASCIONE, Mario ,  SENATORE, Andrea ,  TORO, Francesco

    IPC: H04L29/06

    CPC classification number: H04L63/306

    Abstract: The present technique relates to a Mediation Device (200) and a method for correlating lawful intercepted IMS signalling of a session involving a target UE registered in a first radio coverage area wherein the UE is supported by LTE Radio Access Technology at a session set-up. One object is to offer a technique and technology to overcome the problem for a LEA to correlate SIP signalling related to the original call with the SIP signalling generated during the Single Radio Voice Call Continuity, SRVCC, service execution. The object is achieved by providing the same correlation number CIN before and after SRVCC procedure. This can be accomplished by the Mediation Device and a method therein by checking the whole SIP signaling, from the UE REGISTER to the SRVCC INVITE message.

    Abstract translation: 本发明涉及用于将涉及在第一无线电覆盖区域中注册的目标UE的会话的合法截获的IMS信令进行关联的中介设备（200）和方法，其中该UE由LTE无线电 接入技术在会议设置。 一个目的是提供一种技术和技术来克服LEA将与原始呼叫相关的SIP信令与在单无线电话音呼叫连续性SRVCC服务执行期间生成的SIP信令相关联的问题。 该目的通过在SRVCC过程之前和之后提供相同的相关数CIN来实现。 这可以通过中介设备及其中的方法通过检查从UE REGISTER到SRVCC INVITE消息的整个SIP信令来完成。

    RADIO HANDOVER INDICATION IN IMS DOMAIN
    2.
    发明申请
    RADIO HANDOVER INDICATION IN IMS DOMAIN 审中-公开
    IMS域中的无线电切换指示

    公开(公告)号：WO2017157441A1

    公开(公告)日：2017-09-21

    申请号：PCT/EP2016/055755

    申请日：2016-03-17

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    Inventor： MAIORINO, Michele ,  SENATORE, Andrea ,  TORO, Francesco

    IPC: H04L29/06 ,  H04M3/22 ,  H04W36/00

    CPC classification number: H04L63/30 ,  H04M3/2281 ,  H04M2207/185 ,  H04W36/00

    Abstract: The present invention relates to Lawful interception and the problem how to notify a LEA about whether hand-over occurred between different radio access technologies, e.g. from LTE to Wi-Fi, and vice versa, or from LTE to 3G. The proposed solution aims to introduce, while intercepting only on service level i.e. in IMS domain, a mechanism to report to the LEAs an indication about what access type is serving the UE. The introduced mechanism relies on the "Access-type" field as received within the SIP P- Access-Network-Info header in case of LTE – WiFi handover and on the analysis of "SRVCC related" SIP signaling in case of LTE- 3G handover.

    Abstract translation: 本发明涉及合法侦听以及如何向LEA通知是否发生在不同无线电接入技术之间的切换的问题，例如， 从LTE到Wi-Fi，反之亦然，或从LTE到3G。 所提出的解决方案旨在仅在服务级别（即，在IMS域中）拦截时引入用于向LEA报告关于什么接入类型为UE提供服务的指示的机制。 引入的机制依赖于“访问类型” 字段在LTE-WiFi切换和“SRVCC相关”分析的情况下在SIP P-Access-Network-Info报头内收到。 SIP信令在LTE-3G切换的情况下。

    IMPROVED LAWFUL INTERCEPTION
    3.
    发明申请
    IMPROVED LAWFUL INTERCEPTION 审中-公开
    改进合法的拦截

    公开(公告)号：WO2018038652A1

    公开(公告)日：2018-03-01

    申请号：PCT/SE2016/050783

    申请日：2016-08-23

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    Inventor： ASCIONE, Mario ,  SENATORE, Andrea ,  TORO, Francesco

    IPC: H04L29/06

    Abstract: A mediation function receives intercepted signaling and media payload messages from an IP Multimedia Subsystem, IMS. Local correlation numbers (304) are calculated and a table (300) comprising correlation numbers (304) and media payload mapping information (306) is maintained in order to enable the mediation function to provide a law enforcement agency, LEA, with intercepted media payload together with information that enables the LEA to decode the media payload in real-time.

    Abstract translation: 中介功能从IP多媒体子系统IMS接收截取的信令和媒体有效载荷消息。 计算本地相关数字（304）并且维持包括相关数字（304）和媒体有效载荷映射信息（306）的表格（300）以便使得中介功能能够向执法机构LEA提供截取的媒体有效载荷 以及使LEA能够实时解码媒体载荷的信息。

    METHODS AND DEVICES FOR DETECTING AND CORRELATING DATA PACKET FLOWS IN A LAWFUL INTERCEPTION SYSTEM
    4.
    发明申请
    METHODS AND DEVICES FOR DETECTING AND CORRELATING DATA PACKET FLOWS IN A LAWFUL INTERCEPTION SYSTEM 审中-公开
    用于检测和关联在一个合法的接口系统中的数据包流的方法和设备

    公开(公告)号：WO2017032425A1

    公开(公告)日：2017-03-02

    申请号：PCT/EP2015/069689

    申请日：2015-08-27

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

    Inventor： SENATORE, Andrea ,  TORO, Francesco ,  VILLANI, Elvira

    IPC: H04L29/06

    CPC classification number: H04L63/306 ,  H04W12/02

    Abstract: The following disclosure relates a method and mediation device (100) in a Lawful Interception (LI) system for detecting and correlating copies of SIP and RTP flows, from different domains EPS or IMS, said method comprising to determine a unique IMS Communication Identity Number, IMS CIN, and a corresponding correlation set of identifiers, storing each unique IMS CIN together with its correlation set for an intercepted communication session, correlating a SIP or RTP flow received from one domain to the same SIP or RTP flows of the same communication session received from the other domain by comparing the flow identity information of the received flow to the stored correlation sets for identifying a matching correlation set and its unique IMS CIN and sending to a LEA requesting for LI of the target said received SIP or RTP flow comprising said identified unique IMS CIN for a matching correlation set.

    Abstract translation: 以下公开内容涉及用于从不同域EPS或IMS检测和关联SIP和RTP流的副本的合法拦截（LI）系统中的方法和中介设备（100），所述方法包括：确定唯一的IMS通信身份号码， IMS CIN和相应的标识符集合，将每个唯一IMS CIN及其相关集合一起存储在被拦截的通信会话中，将从一个域接收的SIP或RTP流与相同通信会话的相同SIP或RTP流相关联 通过将所接收的流的流标识信息与所存储的相关集合进行比较来识别匹配的相关集合及其唯一的IMS CIN并向LEA请求LI的目的地发送所述接收的SIP或RTP流，从而从另一个域通过包括所识别的 用于匹配相关集的唯一IMS CIN。

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