WO2015196886A1 - Imsi获取方法及装置、信令监测*** - Google Patents

Imsi获取方法及装置、信令监测*** Download PDF

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Publication number
WO2015196886A1
WO2015196886A1 PCT/CN2015/079710 CN2015079710W WO2015196886A1 WO 2015196886 A1 WO2015196886 A1 WO 2015196886A1 CN 2015079710 W CN2015079710 W CN 2015079710W WO 2015196886 A1 WO2015196886 A1 WO 2015196886A1
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identifier
imsi
signaling
interface signaling
interface
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PCT/CN2015/079710
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English (en)
French (fr)
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高志森
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中兴通讯股份有限公司
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Priority to US15/322,305 priority Critical patent/US10313872B2/en
Publication of WO2015196886A1 publication Critical patent/WO2015196886A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20Transfer of user or subscriber data
    • H04W8/205Transfer to or from user equipment or user record carrier
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/02Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08Mobility data transfer
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/04Arrangements for maintaining operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/045Interfaces between hierarchically different network devices between access point and backbone network device
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/06Interfaces between hierarchically different network devices between gateways and public network devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W92/00Interfaces specially adapted for wireless communication networks
    • H04W92/04Interfaces between hierarchically different network devices
    • H04W92/12Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • This document relates to the field of mobile communications, and in particular, to an IMSI acquisition method and apparatus, and a signaling monitoring system.
  • the S1-MME interface in an LTE (Long Term Evolution) network is an interface between an eNodeB (evolved NodeB, also referred to as a base station) to an EPC (Evolved Packet Core Network) MME (Mobility Management Entity), and is an association between a radio access network and a core network. Node.
  • the signaling monitoring system of the S1-MME interface plays an important role in the LTE wireless network, the core network, and the monitoring and guarantee of the quality and stability of the interaction process between the two.
  • the direct transmission of the user identity IMSI International Mobile Subscriber Identity
  • the temporary user identity GUTI Globally Unique Temporary User Equipment (UE)
  • the GUTI is a temporary identifier, which is reassigned to different users and cannot be directly reflected to the user. This causes the S1-MME interface signaling monitoring system to generate CDRs that often lack IMSI, cannot be directly associated with users, and does not meet the requirements of operators.
  • the temporary user identifier is basically used, and the end user identity IMSI is not used.
  • the MME stores the IMSI information once it has been received, and the subsequent process uses the GUTI. Even if the user shuts down and attaches, it will continue to be saved for a long time. If the user terminals are in the same base station area for one month, that is, the same MME, then all S1-MME interface signaling processes of the terminal for one month will only use GUTI and do not carry IMSI. The IMSI signaling is initiated only when the IMSI does not exist on the MME, but once the IMSI is re-acquired, the subsequent process continues to use the GUTI.
  • the terminal is powered on for the first time, the terminal switches between different MMEs, and the terminal is shut down for many days, and there is no IMSI information on the MME.
  • the follow-up process will use the GUTI temporary identifier. This results in the inability to obtain the IMSI from the majority of the signaling process of the S1-MME interface. Therefore, the S1-MME interface signaling monitoring system generates a CDR that often lacks an IMSI and cannot be directly associated with the user.
  • the embodiment of the invention provides an IMSI acquisition method and device, and a signaling monitoring system, which solves the problem that the IMSI cannot be obtained from most signaling processes of the S1-MME interface.
  • An embodiment of the present invention provides an IMSI obtaining method, including the following steps:
  • the step of associating the first identifier, the second identifier, and the IMSI includes: generating a user identifier table by associating the first identifier, the second identifier, and the IMSI ;
  • the step of acquiring the corresponding IMSI according to the association result and the first identifier in the S1-MME interface signaling includes: querying the user identifier according to the first identifier in the S1-MME interface signaling The table obtains the corresponding IMSI.
  • the first identifier comprises: a GUTI and/or a third identifier.
  • the first identifier includes: a GUTI and a third identifier, or a third identifier; the second identifier and the third identifier are the S1-MME interface signaling and the first interface The same identifier carried by the signaling.
  • the first interface signaling associated with the S1-MME interface signaling includes: S11 Interface signaling; the second identifier and the third identifier include at least one of an uplink F-TEID (fully qualified tunnel endpoint identifier) and a downlink F-TEID.
  • S11 Interface signaling the second identifier and the third identifier include at least one of an uplink F-TEID (fully qualified tunnel endpoint identifier) and a downlink F-TEID.
  • the first identifier and the second identifier are the same GUTI carried by the S1-MME interface signaling and the first interface signaling.
  • the first interface signaling that is associated with the S1-MME interface signaling includes: S10 interface signaling.
  • the embodiment of the present invention further provides an IMSI obtaining apparatus, including: an acquiring module, a first acquiring module, a second acquiring module, a user identity associating module, and an IMSI acquiring module, where:
  • the collecting module is configured to collect S1-MME interface signaling, and first interface signaling associated with the S1-MME interface signaling;
  • the first acquiring module is configured to obtain a first identifier from the S1-MME interface signaling
  • the second acquiring module is configured to obtain an IMSI and the second identifier from the first interface signaling, where the second identifier is an identifier associated with the first identifier;
  • the user identity association module is configured to associate the first identifier, the second identifier, and the IMSI;
  • the IMSI obtaining module is configured to obtain a corresponding IMSI according to the association result and the first identifier in the S1-MME interface signaling.
  • the user identifier association module is configured to generate a user identifier table by associating the first identifier, the second identifier, and the IMSI; and the IMSI acquiring module is configured to be according to the S1
  • the first identifier in the MME interface signaling queries the user identifier table to obtain a corresponding IMSI.
  • the first identifier comprises: a GUTI and/or a third identifier.
  • the second identifier and the third identifier are the S1-MME interface signaling and the first interface The same identifier carried by the signaling.
  • the first interface signaling that is associated with the S1-MME interface signaling includes: S11 interface signaling; the second identifier and the third identifier include an uplink F-TEID, and a downlink F- TEID At least one of them.
  • the first identifier includes: a GUTI
  • the first interface signaling that is associated with the S1-MME interface signaling includes: S10 interface signaling
  • the second identifier and the GUTI are The S1-MME interface signaling and the same GUTI carried by the first interface signaling.
  • the embodiment of the present invention further provides a signaling monitoring system, including: a data access module, an interface protocol identification module, and an S1-MME interface signaling.
  • the monitoring and analysis module, the first interface user identifier obtaining module, the user identifier association module, and the bill sending module wherein:
  • the data access module is configured to collect an S1-MME interface data packet and a first interface data packet, where the first interface data packet is a data packet of the first interface associated with the S1-MME interface;
  • the interface protocol identifier module is configured to process the collected data packet, send the S1-MME interface data packet to the S1-MME interface signaling monitoring and analysis module, and send the first interface data packet to the The first interface user identifier obtaining module;
  • the S1-MME interface signaling monitoring and analyzing module is configured to extract S1-MME interface signaling from the S1-MME interface data packet, and process the S1-MME interface signaling to generate an S1-MME interface signaling. Obtaining a GUTI and a first identifier from the S1-MME interface signaling; and acquiring, according to the association result of the user identity association module, the first identifier in the S1-MME interface signaling, and acquiring a corresponding IMSI Backfilling into the S1-MME interface signaling CDR;
  • the first interface user identifier obtaining module is configured to extract the first interface signaling from the first interface data packet, and obtain the IMSI and the second identifier from the first interface signaling,
  • the second identifier is an identifier associated with the first identifier;
  • the user identity association module is configured to associate the first identifier, the second identifier, and the IMSI;
  • the bill sending module is configured to send the backfilled S1-MME interface signaling bill to the upper layer system.
  • the user identity association module is configured to set the first identifier and the second target Generating an association with the IMSI to generate a user identifier table;
  • the S1-MME interface signaling monitoring and analysis module is configured to query the user identifier table according to the first identifier in the S1-MME interface signaling to obtain a corresponding IMSI.
  • the first identifier comprises: a GUTI and/or a third identifier.
  • the first identifier includes: a GUTI and a third identifier, or a third identifier; the second identifier and the third identifier are the S1-MME interface signaling and the first interface identifier Let the same logo be carried.
  • the first interface signaling that is associated with the S1-MME interface signaling includes: S11 interface signaling; the second identifier and the third identifier include an uplink F-TEID, and a downlink F- At least one of the TEIDs.
  • the embodiment of the present invention provides an IMSI acquisition method and device, and a signaling monitoring system, which can obtain an IMSI corresponding to an S1-MME interface signaling, and can further add a user identity IMSI to a S1-MME interface signaling bill to contact a user.
  • the IMSI obtaining method of the embodiment of the present invention includes: collecting S1-MME interface signaling, first interface signaling associated with the S1-MME interface signaling, and acquiring a first identifier from the S1-MME interface signaling; Acquiring the IMSI and the second identifier from the first interface signaling, where the second identifier is an identifier associated with the first identifier; and the first identifier, the second identifier, and the The IMSI performs association; the corresponding IMSI is obtained according to the association result and the first identifier in the S1-MME interface signaling; the IMSI obtaining method provided by the embodiment of the present invention utilizes the S1-MME interface signaling and the first interface carrying the IMSI
  • the signaling has the characteristics of the associated identifier, and the corresponding identifier of the associated two-interface signaling enables the IMSI to be directly obtained by using the first identifier in the S1-MME interface signaling.
  • the IMSI corresponding to the port signaling can further provide an IMSI for the signaling monitoring CDR, so that the signaling monitoring CDR can contact the user, thereby improving the user experience.
  • FIG. 1 is a schematic flowchart diagram of an IMSI obtaining method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart diagram of another method for acquiring an IMSI according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic structural diagram of an IMSI acquiring apparatus according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural diagram of a signaling monitoring system according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of another signaling monitoring system according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic diagram of the cooperation of each module in the signaling monitoring system according to Embodiment 3 of the present invention to obtain an IMSI;
  • FIG. 7 is a schematic diagram of a signaling process of an S1-MME and an S11 interface in a primary attach procedure according to Embodiment 3 of the present invention.
  • FIG. 8 is a first user identification table according to Embodiment 3 of the present invention.
  • FIG. 9 is a second user identification table according to Embodiment 3 of the present invention.
  • FIG. 10 is a third user identification table according to Embodiment 3 of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • this embodiment provides an IMSI acquisition method, which is applied to an LTE (Long Term Evolution) network, and includes the following steps:
  • Step 101 Collect S1-MME interface signaling, and first interface signaling associated with the S1-MME interface signaling.
  • the S1-MME interface signaling is the signaling of the S1-MME interface
  • the first interface signaling associated with the S1-MME interface signaling in this embodiment refers to the interface associated with the S1-MME interface.
  • the signaling wherein the interface associated with the S1-MME interface includes: a signaling interface that triggers the signaling process of the S1-MME interface, a signaling interface that triggers the signaling flow of other interfaces, or a signaling that may trigger the signaling process of the S1-MME interface
  • the interface is configured, and the interface signaling process carries an identifier associated with the S1-MME interface signaling procedure; for example, the interface associated with the S1-MME interface may include: an S11 interface or an S10 interface.
  • the signaling process that triggers the S1-MME interface triggers the corresponding signaling process on the S11 or S10 interface, or triggers the S11 and S10 signaling processes to trigger the S1-MME interface signaling process.
  • the S1-MME The interface signaling and the S11 interface signaling carry the same S1-U bearer channel identifier, such as the downlink F-TEID (that is, the downlink GTP-TEID, IP) and the uplink F-TEID (that is, the uplink GTP-TEID, IP); or S1- The same GUTI is carried in the MME interface signaling and the S10 interface signaling.
  • Step 102 Obtain a first identifier from the S1-MME interface signaling.
  • the first identifier is an identifier associated with the second identifier carried by the first interface signaling.
  • the association includes: the two identifiers are the same or the two identifiers have a corresponding relationship.
  • the first identifier may include at least one of an uplink F-TEID and a downlink F-TEID.
  • the first identifier is an identifier carried by the S1-MME interface signaling, which may include a GUTI and/or a third identifier.
  • the first identifier may include: GUTI and uplink F-TEID, or GUTI, or uplink F-TEID, and the like.
  • the GUTI may be an identifier associated with the second identifier
  • the third identifier may be an identifier associated with the second identifier
  • the three identifiers are all identifiers associated with the second identifier.
  • Step 103 Obtain an IMSI and the second identifier from the first interface signaling, where the second identifier is an identifier associated with the first identifier.
  • the second identifier is an identifier associated with the first identifier carried in the signaling of the S1-MME interface.
  • the first identifier includes: a GUTI and a third identifier, or a third identifier
  • the second identifier and the third identifier are the S1-MME interface signaling and the first interface
  • the first interface is an S11 interface
  • the second identifier and the third identifier may include at least one of an uplink F-TEID and a downlink F-TEID.
  • the second identifier may be an identifier corresponding to the first identifier in the embodiment.
  • the first identifier includes: a GUTI and a third identifier, or the third identifier
  • the second identifier is The third identifier has an identifier of the corresponding relationship; when the first identifier includes the GUTI, the second identifier may have an identifier corresponding to the GUTI.
  • Step 104 Associate the first identifier, the second identifier, and the IMSI.
  • the identifiers are associated, due to the An identifier and a second identifier are associated identifiers, so that the identifiers of the two signalings can be associated, so that the corresponding IMSI can be obtained from the association result by using the first identifier in the S1-MME interface signaling.
  • the method in this embodiment can also maintain the association result according to the new signaling process, including association creation, update, and deletion.
  • Step 105 Acquire a corresponding IMSI according to the association result and the first identifier in the S1-MME interface signaling.
  • the corresponding IMSI may be obtained from the management result by using the GUTI or the third identifier.
  • Step 102 and step 103 in the method of the embodiment do not have strict timing constraints, and step 102 can be performed before, after or simultaneously with step 103.
  • the S1-MME interface is an important interface for the analysis of the signaling analysis system. However, since it does not carry the IMSI, it needs to be associated with other first interfaces carrying the IMSI to obtain the IMSI and then backfill the S1-MME interface, so that S1- The data analyzed by the MME interface is known to the home IMSI user.
  • the IMSI obtaining method uses the associated identifiers in different signaling to associate the identifiers in the two signalings, so that the corresponding IMSI can be obtained by using the identifier carried in one of the interface signalings; for example, this embodiment The method associates the first identifier in the S1-MME interface signaling with the IMSI and the second identifier in the first interface signaling, where the first identifier and the second identifier are associated identifiers, so that only the The first identifier in the S1-MME interface signaling can obtain the corresponding IMSI from the association result.
  • the method in this embodiment can completely obtain the user identifier IMSI corresponding to the S1-MME interface signaling, and further The monitoring bill has an IMSI, which can contact the user and improve the user experience.
  • the method in this embodiment may associate the user identifiers of the two signalings to establish a user identifier table for querying the IMSI. Therefore, the foregoing step 104 may include: performing, by using the first identifier, the second identifier, and the IMSI. The association generates a user identifier table. In this case, the foregoing step 105 may include: querying the user identifier table according to the first identifier in the S1-MME interface signaling to obtain a corresponding IMSI.
  • the method in this embodiment can establish a user identifier table for the user or device to query the S1-MME interface signaling.
  • Corresponding IMSI wherein the user identification table is a table indicating the correspondence between the first identifier, the second identifier, and the IMSI.
  • the first identifier includes the GUTI and the third identifier.
  • the second identifier and the third identifier may be the same identifier carried by the S1-MME interface signaling and the first interface signaling.
  • the second identifier and the third identifier may include at least one of an uplink F-TEID and a downlink F-TEID.
  • the GUTI, the third identifier, the second identifier, and the IMSI are associated to generate a user identifier table; and the corresponding IMSI is obtained by querying from the user identifier table according to the GUTI or the third identifier.
  • the first identifier includes a GUTI.
  • the first identifier and the second identifier are the same GUTI carried by the S1-MME interface signaling and the first interface signaling;
  • the first identifier and the second identifier are the same GUTI carried in the S1-MME interface signaling and the S10 signaling.
  • the GUTI, the second identifier, and the IMSI are associated to generate a user identifier table; and the corresponding IMSI is obtained by querying from the user identifier table according to the GUTI.
  • the first identifier includes the third identifier.
  • the third identifier is the same identifier as the second identifier.
  • the second identifier and the third identifier may be uplink F-TEIDs. At least one of the downlink F-TEIDs.
  • the third identifier, the second identifier, and the IMSI are associated to generate a user identifier table; and the third identifier is used to query and obtain the corresponding IMSI from the user identifier table.
  • the method provided in this embodiment is described in detail by using the first interface as the S11 interface and the first identifier, including the GUTI, the uplink F-TEID, and the downlink F-TEID, where the uplink F-TEID and the downlink F-TEID are the third identifier. ,as shown in picture 2:
  • Step 201 Collect S1-MME interface signaling and S11 interface signaling.
  • Step 202 Extract an identifier pair ⁇ GUTI, a downlink F-TEID, and an uplink F-TEID ⁇ from the S1-MME interface signaling.
  • Step 203 Extract the identifier pair ⁇ IMSI, downlink F-TEID, and uplink from the S11 interface signaling.
  • Step 204 Associate the S1-MME interface with the S11 interface delivery identifier pair, and generate a corresponding user identification table.
  • Step 205 Query the user identification table by using the GUTI or the downlink F-TEID or the uplink F-TEID information in the S1-MME interface signaling to obtain the IMSI.
  • the process of obtaining the IMSI is similar to the process of obtaining the IMSI when the first interface is the S11 interface, and details are not described herein.
  • the method in this embodiment proposes to use the S1-MME interface and the S11 interface keyword association manner to obtain the user IMSI.
  • the corresponding signaling process is triggered on the S11 interface.
  • the S1-MME interface signaling process carries the GUTI.
  • the GTP signaling process of the S11 interface carries the IMSI.
  • a user carries the same S1-U bearer channel identifier downlink F-TEID (ie, downlink GTP-TEID, IP) and uplink F-TEID (ie, uplink GTP-TEID, IP) in the S1-MME interface and the S11 interface signaling.
  • the method collects the IMSI and the uplink and downlink F-TEID in the S11 interface signaling, and collects the GUTI and the uplink and downlink F-TEID in the S1-MME interface signaling. Then, the association establishes the user identifier table, and finally uses the S1-MME interface.
  • the GUTI or the uplink and downlink F-TEIDs in the signaling query the user identification table to obtain the IMSI.
  • the method in this embodiment can obtain the user IMSI by using the S1-MME interface and the S10 interface keyword association manner.
  • the corresponding signaling process is triggered on the S10 interface.
  • the IMSI and the signaling of the interface with the S1-MME carry the same GUTI in the S10 interface signaling process.
  • the method can collect the GUTI and the IMSI in the S10 interface signaling, collect the GUTI in the S1-MME interface signaling, and then establish a user identification table by using the process association, and finally use the GUTI to query the user identification table in the S1-MME interface signaling. Get the IMSI.
  • the acquiring IMSI can be backfilled into the bill, so that the S1-MME interface bill has an IMSI and is directly associated with the user.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • an IMSI acquiring device including: an acquiring module, a first acquiring module, a second acquisition module, a user identification association module, and an IMSI acquisition module, wherein:
  • the collecting module is configured to collect S1-MME interface signaling, and first interface signaling associated with the S1-MME interface signaling;
  • the first acquiring module is configured to obtain a first identifier from the S1-MME interface signaling
  • the second acquiring module is configured to obtain an IMSI and the second identifier from the first interface signaling, where the second identifier is an identifier associated with the first identifier;
  • the user identity association module is configured to associate the first identifier, the second identifier, and the IMSI;
  • the IMSI obtaining module is configured to obtain a corresponding IMSI according to the association result and the first identifier in the S1-MME interface signaling.
  • the IMSI obtaining apparatus uses the S1-MME interface signaling and the first interface signaling carrying the IMSI to have the characteristics of the associated identifier, and associates the corresponding identifiers of the two interface signalings so that the S1-MME interface signaling can be utilized.
  • the first identifier is directly obtained by the IMSI.
  • the device in the embodiment of the present invention can completely obtain the user identifier IMSI corresponding to the S1-MME interface signaling, and further can provide the IMSI for the signaling monitoring CDR, so that the signaling Monitoring the bills can contact the user and improve the user experience.
  • the embodiment further provides an improvement that the user identifier association module is configured to generate association between the first identifier, the second identifier, and the IMSI.
  • a user identifier table where the IMSI acquisition module is configured to query the user identifier table according to the first identifier in the S1-MME interface signaling to obtain a corresponding IMSI.
  • the user identity association module is configured to associate the S1-MME interface with the identifier of the first interface to generate a user identifier table for querying the IMSI.
  • the first identifier in the embodiment includes: a GUTI and/or a third identifier.
  • the first identifier in the embodiment includes: a GUTI and a third identifier, or a third identifier; the second identifier and the third identifier are the S1-MME interface signaling and the The same identifier carried by the first interface signaling.
  • the first interface signaling that is associated with the S1-MME interface signaling includes: S11 interface signaling; the second identifier and the third identifier include an uplink F-TEID and a downlink F- TEID At least one of them.
  • the first identifier in the embodiment includes: a GUTI
  • the first interface signaling associated with the S1-MME interface signaling includes: S10 interface signaling
  • the second identifier and The GUTI is the same GUTI carried by the S1-MME interface signaling and the first interface signaling.
  • the IMSI acquiring apparatus can obtain the IMSI corresponding to the signaling flow of the S1-MME interface, and further provide the IMSI for the signaling monitoring CDR, so that the signaling monitoring CDR can contact the user, thereby improving the user experience.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the embodiment provides a signaling monitoring system, including: a data access module, an interface protocol identification module, an S1-MME interface signaling monitoring and analysis module, a first interface user identity obtaining module, a user identity association module, and a bill sending module. ,among them:
  • the data access module is configured to collect an S1-MME interface data packet and a first interface data packet, where the first interface data packet is a data packet of the first interface associated with the S1-MME interface;
  • the interface protocol identifier module is configured to process the collected data packet, and send the S1-MME interface data packet to the S1-MME interface signaling monitoring and analyzing module, and send the first interface data packet to the The first interface user identifier obtaining module;
  • the S1-MME interface signaling monitoring and analyzing module is configured to extract S1-MME interface signaling from the S1-MME interface data packet, and process the S1-MME interface signaling to generate an S1-MME interface signaling. Obtaining a GUTI and a first identifier from the S1-MME interface signaling; and acquiring, according to the association result of the user identity association module, the first identifier in the S1-MME interface signaling, and acquiring a corresponding IMSI Backfilling into the S1-MME interface signaling CDR;
  • the first interface user identifier obtaining module is configured to extract the first interface signaling from the first interface data packet, and obtain the IMSI and the second identifier from the first interface signaling,
  • the second identifier is an identifier associated with the first identifier;
  • the user identity association module is configured to the first identifier, the second identifier, and the IMSI is associated;
  • the bill sending module is configured to send the backfilled S1-MME interface signaling bill to the upper layer system.
  • the signaling monitoring system of this embodiment can completely obtain the user identification IMSI information, and backfill the acquired IMSI into the generated bill, so that the signaling monitoring bill has a user identifier.
  • the embodiment provides an improved solution: the user identity association module is configured to generate association between the first identifier, the second identifier, and the IMSI.
  • the user identifier table is configured to query the user identifier table according to the first identifier in the S1-MME interface signaling to obtain a corresponding IMSI.
  • the signaling monitoring can obtain the IMSI by generating a user identification table and then looking up the table.
  • the first identifier includes: a GUTI and/or a third identifier.
  • the first identifier includes: a GUTI and a third identifier, or a third identifier; the second identifier and the third identifier are carried by the S1-MME interface signaling and the first interface signaling The same logo.
  • the first interface may be an S11 interface, and the first interface signaling is S11 interface signaling, where the second identifier and the third identifier include at least one of an uplink F-TEID and a downlink F-TEID.
  • the signaling monitoring system may collect the GUTI in the S1-MME interface signaling and the same identifier carried in the signaling with the first interface, and collect the IMSI in the first interface signaling and the signaling carrying the S1-MME interface. The same identifier; then the associated identifier is generated to generate a user identification table for querying the IMSI.
  • the first identifier and the second identifier are the same GUTI carried by the S1-MME interface signaling and the first interface signaling.
  • the first interface may be an S10 interface
  • the first interface signaling is S10 signaling, where the second identifier and the first identifier are both GUTIs.
  • the signaling monitoring in this embodiment may collect the GUTI in the S1-MME interface signaling; The IMSI in the interface signaling and the same GUTI carried in the signaling of the S1-MME interface; and then the associated identifier is generated to generate a user identifier table for querying the IMSI.
  • the first interface user identifier obtaining module in the signaling monitoring system in this embodiment is the S11 interface user identifier. Obtain the module; including the following steps:
  • the first step the data access module collects the S1-MME interface and the S11 interface data packet, and transmits the data packet to the interface protocol identification module.
  • the second step the interface protocol identification module performs protocol decoding on the collected data packet, performs address port matching, protocol matching, determines the interface type and protocol level of each packet, and transmits the data packet to the corresponding interface processing module, that is, the transmission Sending an S1-MME interface signaling monitoring analysis module or an S11 interface user identification acquiring module;
  • the third step: the S1-MME interface signaling monitoring and analysis module is the core of the system, receives the S1-MME interface data packet, parses the signaling on the S1-MME interface, processes the process, and generates the bill; and simultaneously obtains the IMSI in the signaling.
  • the GUTI, the downlink F-TEID, and the uplink F-TEID identifier pair are transmitted to the user identity association module, and the IMSI is queried from the association module to obtain the IMSI backfilled into the CDR of the S1-MME interface;
  • Step 4 The S11 interface user identity acquisition module receives the S11 interface data packet, and performs only the GTP-C signaling decryption analysis, and obtains the IMSI, the downlink F-TEID, and the uplink F-TEID identifier pair in the signaling, and transmits the identifier to the user. Identify the association module;
  • Step 5 The user identity association module receives the S1-MME interface and the S11 user identifier pair, performs association to generate a complete user identifier table ⁇ IMSI, GUTI, downlink F-TEID, uplink F-TEID ⁇ , and provides an S1-MME interface. Make an inquiry;
  • Step 6 The bill sending module receives the S1-MME interface signaling monitoring generation and performs the IMSI backfilling bill, and sends the bill to the upper layer system.
  • the monitoring system of this embodiment may further maintain a user identification table according to the above steps, including creating, updating, and deleting records in the table.
  • the process of acquiring the IMSI by the S1-MME interface signaling monitoring and analysis module, the S11 interface user identifier obtaining module, and the user identifier association module includes the following processes:
  • the S1-MME interface signaling monitoring and analysis module transmits the identifier pair ⁇ GUTI, the downlink F-TEID, and the uplink F-TEID ⁇ to the user identity association module, but in most cases, the IMSI does not exist in the identifier pair, and the identifier pair information Passed to the user identity association module;
  • the S11 interface user identifier obtaining module transmits the identifier pair ⁇ IMSI, the downlink F-TEID, and the uplink F-TEID ⁇ to the user identifier association module;
  • the S1-MME interface and the S11 interface delivery identifier pair are associated and saved in the user identifier table by using the downlink F-TEID and the uplink F-TEID.
  • the S1-MME interface signaling monitoring and analysis module uses the GUTI or the downlink F-TEID or the uplink F-TEID information to query the user identifier table, obtains the IMSI, and backfills the S1-MME interface signaling CDR.
  • the signaling monitoring system of this embodiment is introduced by using a user attaching process. As shown in FIG. 7, the following processes are included:
  • the user terminal starts network access, and the terminal sends an Attach Request message to the base station to request attachment;
  • the base station eNodeB forwards an Attach Request message to the core network device MME (Mobility Management Entity) on the S1-MME interface, and requests the attach, the message carries the GUTI, and most of the cases do not carry the IMSI;
  • MME Mobility Management Entity
  • the MME sends a create session request Create Session Request to the attached user to the Sering-GW (the service gateway) on the S11 interface, where the message carries the IMSI;
  • the Sering-GW returns a Create Session Response (Create Session Response), and the message carries an uplink F-TEID;
  • the S11 interface user identifier obtaining module combines the Create Session Request and the Create Session Response message to obtain the user identifier pair ⁇ IMSI, uplink F-TEID ⁇ , and transmits it to the user identifier association module to generate a user table.
  • the MME returns an attach accept message to the eNodeB on the S1-MME interface.
  • the message Carry ⁇ upstream F-TEID ⁇ ;
  • the S1-MME interface signaling monitoring and analysis module combines the Attach Request to the Attach Accept message to obtain the user identity pair ⁇ GUTI, uplink F-TEID ⁇ , and transmits it to the user identity association module to generate the user.
  • the identification table is shown in Figure 9, and the corresponding user identification IMSI is returned from the user identification association module query.
  • the S1-MME interface signaling monitoring and analysis module parses the Attach Request to the Attach Accept message to generate an attach flow CDR, and after querying the IMSI, backfills the query to the IMSI to the CDR, and sends the message to the CDR sending module. single.
  • step 11 the eNodeB returns an Attach Accept to the terminal
  • step 12 the terminal sends an Attach Complete to the eNodeB.
  • the eNodeB sends an Initial Context Setup Response message to the MME on the S1-MME interface, where the message carries a downlink F-TEID;
  • the S1-MME interface analysis module passes the identifiers in the process to ⁇ GUTI, downlink F-TEID, and uplink F-TEID ⁇ to the user identity association module to form a complete user identifier table, FIG.
  • step 14 the eNodeB returns an Attach Complete to the MME
  • the MME sends and receives a Modify Bearer Request and a Modify Bearer Response message on the S11 interface and the Sering-GW.
  • This message carries the downstream F-TEID.
  • the S11 interface user identifier obtaining module transmits the ⁇ GUTI, downlink F-TEID, and uplink F-TEID ⁇ in the process to the user identifier association module to form a complete user identifier table.
  • the subsequent new signaling process initiated on the S1-MME interface only needs to carry the GUTI or the downlink F-TEID or the uplink F-TEID.
  • the IMSI can be queried in the user identification table and backfilled into the signaling CDR.
  • the signaling monitoring system of the present embodiment is not limited to the application to the user-attached process, and may be applied to other signaling processes.
  • the working principle of the signaling monitoring system in this embodiment is carried according to the S1-MME interface.
  • the S11 interface carries the IMSI, the downlink F-TEID, and the uplink F-TEID, and can be associated with the IMSI and backfilled into the S1-MME interface signaling CDR.
  • the actual application is not limited to being associated with the S11 interface, and may also be associated with the S10 interface, and the IMTI is used to obtain the IMSI.
  • the method of the embodiment of the present invention can completely obtain the user identifier IMSI corresponding to the S1-MME interface signaling, and can further provide an IMSI for the signaling monitoring CDR, so that the signaling monitoring CDR can contact the user, thereby improving the user experience.

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Abstract

本发明实施例公开了一种IMSI获取方法及装置、信令监测***。本发明实施例的IMSI获取方法包括:采集S1-MME接口信令、与所述S1-MME接口信令关联的第一接口信令;从所述S1-MME接口信令中获取第一标识;从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;对所述第一标识、所述第二标识和所述IMSI进行关联;根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI。

Description

IMSI获取方法及装置、信令监测*** 技术领域
本文涉及移动通信领域,尤其涉及一种IMSI获取方法及装置、信令监测***。
背景技术
伴随人类的移动通信需求增长、技术发展,2/3G通信网络的质量、效率已经不能满足人类要求,因此4G-LTE网络逐步开始应用。在LTE网络部署期间,设备或终端不稳定或缺陷导致网络质量低、稳定性差,因此运营商急需有信令监测***可以对主设备进行监测、评估,推动网络的质量提升。
LTE(长期演进)网络中S1-MME接口是eNodeB(演进型NodeB,又称基站)到EPC(演进分组核心网)MME(移动性管理实体)的接口,是无线接入网到核心网的关联结点。S1-MME接口的信令监测***对LTE的无线网络、核心网络、两者之间的交互流程的质量、稳定性的监测、保障起到重要作用。
基于空口安全考虑,在S1-MME接口信令中会尽量避免直接传递用户标识IMSI(国际移动用户识别码),会在信令流程中使用临时用户标识GUTI(全球唯一临时用户设备(UE)标识)代替。但GUTI是临时标识,会重新分配给不同用户,不能直接体现到用户;这导致S1-MME接口信令监测***生成话单经常缺少IMSI,不能直接关联到用户,不满足运营商使用要求。具体地,在S1-MME接口的信令中,基本都使用临时用户标识,不使用最终用户标识IMSI。MME只要接收过一次IMSI信息就存储起来,后续流程都会使用GUTI,即使用户关机去附着也会继续保存很长一段时间。假如用户终端一个月都在同一个基站区域内,即同一个MME上,那么一个月终端的所有S1-MME接口信令流程都只会使用GUTI,不携带IMSI。只有MME上IMSI不存在时,才会发起一次请求IMSI的信令,但一旦重新获取到IMSI后,后续流程继续使用GUTI。在这些特殊场景中,终端首次开机,终端在不同MME之间切换,终端关机很多天,MME上才没有IMSI信息。这些场景出现少, 而且出现一次后马上后续流程都会使用GUTI临时标识。这导致无法从S1-MME接口大部分信令流程中获取IMSI,所以在S1-MME接口信令监测***生成话单经常缺少IMSI,不能直接关联到用户。
发明内容
本发明实施例提供一种IMSI获取方法及装置、信令监测***,解决了目前无法从S1-MME接口大部分信令流程中获取IMSI的问题。
本发明实施例提供一种IMSI获取方法,包括如下步骤:
采集S1-MME接口信令、以及与所述S1-MME接口信令关联的第一接口信令;
从所述S1-MME接口信令中获取第一标识;
从所述第一接口信令中获取IMSI和第二标识,所述第二标识为与所述第一标识相联系的标识;
对所述第一标识、所述第二标识和所述IMSI进行关联;
根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI。
可选地,所述对所述第一标识、所述第二标识和所述IMSI进行关联的步骤包括:对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;
所述根据关联结果和所述S1-MME接口信令中的所述第一标识获取相应的IMSI的步骤包括:根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
可选地,所述第一标识包括:GUTI和/或第三标识。
可选地,当所述第一标识包括:GUTI和第三标识、或者第三标识时;所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
可选地,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11 接口信令;所述第二标识和所述第三标识包括上行F-TEID(完全限定隧道端点标识符)、下行F-TEID中的至少一种。
可选地,当所述第一标识包括:GUTI时;所述第一标识与所述第二标识为所述S1-MME接口信令和所述第一接口信令携带的相同GUTI。
可选地,所述与所述S1-MME接口信令关联的第一接口信令的包括:S10接口信令。
同样为了解决上述技术问题,本发明实施例还提出了一种IMSI获取装置,包括:采集模块、第一获取模块、第二获取模块、用户标识关联模块以及IMSI获取模块,其中:
所述采集模块,设置为采集S1-MME接口信令、以及与所述S1-MME接口信令关联的第一接口信令;
所述第一获取模块,设置为从所述S1-MME接口信令中获取第一标识;
所述第二获取模块,设置为从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
所述用户标识关联模块,设置为对所述第一标识、所述第二标识和所述IMSI进行关联;
所述IMSI获取模块,设置为根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI。
可选地,所述用户标识关联模块,是设置为对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;所述IMSI获取模块,是设置为根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
可选地,所述第一标识包括:GUTI和/或第三标识。
可选地,当所述第一标识包括:GUTI和第三标识、或者第三标识时,所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
可选地,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11接口信令;所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中 的至少一种。
可选地,所述第一标识包括:GUTI,且所述与所述S1-MME接口信令关联的第一接口信令的包括:S10接口信令;所述第二标识与所述GUTI为所述S1-MME接口信令和所述第一接口信令携带的相同GUTI。
同样为了解决上述的技术问题,并且进一步解决话单缺少IMSI的问题,本发明实施例还提出了一种信令监测***,包括:数据接入模块、接口协议识别模块、S1-MME接口信令监测分析模块、第一接口用户标识获取模块、用户标识关联模块和话单发送模块,其中:
所述数据接入模块,设置为采集S1-MME接口数据报文、第一接口数据报文,所述第一接口数据报文为与S1-MME接口关联的第一接口的数据报文;
所述接口协议标识模块,设置为对采集的数据报文进行处理,将S1-MME接口数据报文发送到所述S1-MME接口信令监测分析模块,将第一接口数据报文发送给所述第一接口用户标识获取模块;
所述S1-MME接口信令监测分析模块,设置为从所述S1-MME接口数据报文提取S1-MME接口信令,对所述S1-MME接口信令进行处理生成S1-MME接口信令话单;从所述S1-MME接口信令中获取GUTI和第一标识;以及根据所述用户标识关联模块的关联结果所述S1-MME接口信令中所述第一标识获取相应的IMSI并回填到所述S1-MME接口信令话单中;
所述第一接口用户标识获取模块,设置为从所述第一接口数据报文中提取第一接口信令,并从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
所述用户标识关联模块,设置为对所述第一标识、所述第二标识和所述IMSI进行关联;
所述话单发送模块,设置为将回填后的S1-MME接口信令话单发送给上层***。
可选地,所述用户标识关联模块是设置为对所述第一标识、所述第二标 识和所述IMSI进行关联生成用户标识表;所述S1-MME接口信令监测分析模块是设置为根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
可选地,所述第一标识包括:GUTI和/或第三标识。
可选地,所述第一标识包括:GUTI和第三标识、或者第三标识时;所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
可选地,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11接口信令;所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中的至少一种。
本发明实施例提供了一种IMSI获取方法及装置、信令监测***,能够获取S1-MME接口信令对应的IMSI,进而可以在S1-MME接口信令话单添加用户标识IMSI,联系用户;本发明实施例的IMSI获取方法包括:采集S1-MME接口信令、与所述S1-MME接口信令关联的第一接口信令;从所述S1-MME接口信令中获取第一标识;从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;对所述第一标识、所述第二标识和所述IMSI进行关联;根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI;本发明实施例提供的IMSI获取方法利用S1-MME接口信令和携带IMSI的第一接口信令具有相联系的标识的特性,关联两接口信令相应的标识使得可以利用S1-MME接口信令中的第一标识直接获取IMSI;与相关技术相比,本发明实施例的方法可以完整获取到S1-MME接口信令对应的用户标识IMSI,进而可以为信令监测话单提供IMSI,使得信令监测话单可以联系用户,提高了用户体验。
附图概述
图1为本发明实施例一提供的一种IMSI获取方法的流程示意图;
图2为本发明实施例一提供的另一种IMSI获取方法的流程示意图;
图3为本发明实施例二提供的一种IMSI获取装置的结构示意图;
图4为本发明实施例三提供的一种信令监测***的结构示意图;
图5为本发明实施例三提供的另一种信令监测***的结构示意图;
图6为本发明实施例三通过的一种信令监测***中各模块协作完成获取IMSI的示意图;
图7为本发明实施例三提供的一种一次附着流程中S1-MME和S11接口信令流程的示意图;
图8为本发明实施例三提供的第一种用户标识表;
图9为本发明实施例三提供的第二种用户标识表;
图10为本发明实施例三提供的第三种用户标识表。
本发明的实施方式
下面结合附图对本发明实施例作详细说明。
实施例一:
考虑到目前无法从S1-MME接口信令流程中获取IMSI的问题以及由于无法从S1-MME接口信令流程中获取IMSI导致从S1-MME接口信令话单缺少IMSI不能联系用户的问题;如图1所示,本实施例提供了一种IMSI获取方法,应用于LTE(长期演进)网络中,包括如下步骤:
步骤101:采集S1-MME接口信令、与所述S1-MME接口信令关联的第一接口信令;
本实施例中S1-MME接口信令为S1-MME接口的信令,本实施例中与所述S1-MME接口信令关联的第一接口信令指的是与S1-MME接口关联的接口的信令,其中与S1-MME接口关联的接口包括:触发S1-MME接口信令流程的同时,对应触发其他接口信令流程的信令接口,或可以触发S1-MME接口信令流程的信令接口,并且该接口信令流程与S1-MME接口信令流程携带相联系的标识;例如与S1-MME接口关联的接口可以包括:S11接口或S10接口。
一般地,在触发S1-MME接口的信令流程都会在S11或者S10接口触发对应信令流程,或触发S11、S10信令流程也会触发S1-MME接口信令流程,此时,S1-MME接口信令和S11接口信令中携带相同S1-U承载通道标识,比如下行F-TEID(即下行GTP-TEID、IP)和上行F-TEID(即上行GTP-TEID、IP);或者S1-MME接口信令和S10接口信令中携带相同的GUTI。
步骤102:从所述S1-MME接口信令中获取第一标识;
本实施例中第一标识为与第一接口信令携带的第二标识相联系的标识。其中相联系包括:两标识相同或者两标识具有对应关系。例如当第一接口为S11接口时,第一标识可以包括上行F-TEID、下行F-TEID中的至少一种。
在本实施例中第一标识为S1-MME接口信令携带的标识,其可以包括GUTI和/或第三标识。例如第一标识可以包括:GUTI和上行F-TEID,或者GUTI,或者上行F-TEID,等等。在本实施例中当第一标识包括GUTI和/或第三标识时,GUTI可以为与第二标识相联系的标识,或者第三标识可以为与第二标识相联系的标识,或者GUTI和第三标识均为与第二标识相联系的标识。
步骤103:从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
本实施例中第二标识为与S1-MME接口信令携带的第一标识相联系的标识。可选地,当所述第一标识包括:GUTI和第三标识、或者第三标识时,所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。例如当第一接口为S11接口时,第二标识和第三标识可以包括上行F-TEID、下行F-TEID中的至少一种。
当然本实施例中第二标识也可以为与第一标识具有对应关系的标识;当所述第一标识包括:GUTI和第三标识、或者第三标识时,所述第二标识为与所述第三标识具有对应关系的标识;当所述第一标识包括GUTI时,所述第二标识可以与GUTI具有对应关系的标识。
步骤104:对所述第一标识、所述第二标识和所述IMSI进行关联;
在分别从两种接口信令中获取标识之后,对这些标识进行关联,由于第 一标识和第二标识是相联系的标识,所以可以将两个信令中标识建立联系,这样就可以通过S1-MME接口信令中的第一标识从关联结果中获取对应的IMSI。
本实施例方法还可以根据新的信令流程,来维护这个关联结果,包括关联的创建、更新、删除。
步骤105:根据关联结果、所述S1-MME接口信令中所述第一标识获取相应的IMSI。
例如当第一标识包括GUTI和第三标识时,可以利用GUTI或者第三标识从管理结果中获取对应的IMSI。
本实施例方法中步骤102和步骤103并没有严格的时序限制,步骤102可以在步骤103之前、之后或者同时执行。
S1-MME接口是信令分析***分析的重要接口,但由于其基本不携带IMSI,因此需要通过与其他携带IMSI的第一接口关联,获取到IMSI,再回填到S1-MME接口,使得S1-MME接口分析的数据都知道归属的IMSI用户。
本实施例IMSI获取方法利用不同信令中具有相联系的标识特性,将两个信令中标识进行关联,从而可以利用其中一个接口信令中携带的标识获取对应的IMSI;例如,本实施例方法将S1-MME接口信令中第一标识与第一接口信令中的IMSI、所述第二标识相关联,其中第一标识与所述第二标识为相联系的标识,这样只需利用S1-MME接口信令中第一标识即可从关联结果中获取相应的IMSI;与相关技术相比,本实施例方法可以完整获取到S1-MME接口信令对应的用户标识IMSI,进而使得信令监测话单有IMSI,可以联系用户,提高了用户体验。
本实施例方法可以将两信令的用户标识进行关联后建立一个用户标识表,供查询IMSI;因此,上述步骤104可以包括:对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;此时,上述步骤105可以包括:根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
本实施例方法可以建立用户标识表供用户或设备查询S1-MME接口信令 对应的IMSI,其中用户标识表是表明所述第一标识、所述第二标识、所述IMSI对应关系的一个表格。
本实施例方法因第一标识包括的内容不同,可以为以下几种情况:
1、第一标识包括GUTI和第三标识,此时,所述第二标识与所述第三标识可以为所述S1-MME接口信令和所述第一接口信令携带的相同标识。例如当第一接口为S11接口时,第二标识和第三标识可以包括上行F-TEID、下行F-TEID中的至少一种。
在获取标识之后,对GUTI、第三标识、第二标识、IMSI进行关联生成一用户标识表;根据GUTI或第三标识从用户标识表中查询获取相应的IMSI。
2、第一标识包括GUTI,此时,所述第一标识与所述第二标识为所述S1-MME接口信令和所述第一接口信令携带的相同GUTI;也就是说,分别提取第一接口信令和S1-MME接口信令中携带的相同GUTI。例如当第一接口为S10时,第一标识和第二标识为S1-MME接口信令和S10信令中携带的相同GUTI。
在获取标识之后,对GUTI、第二标识、IMSI进行关联生成一用户标识表;根据GUTI从用户标识表中查询获取相应的IMSI。
3、第一标识包括第三标识,此时,所述第三标识为与第二标识相同的标识;例如在第一接口为S11接口时,第二标识和第三标识可以为上行F-TEID、下行F-TEID中的至少一种。
在获取标识后,对第三标识、第二标识和IMSI进行关联生成一用户标识表;根据第三标识从用户标识表中查询获取相应的IMSI。
下面以第一接口为S11接口以及第一标识包括GUTI和上行F-TEID、下行F-TEID为例来详细介绍本实施例提供的方法,其中上行F-TEID、下行F-TEID为第三标识,如图2所示:
步骤201:采集S1-MME接口信令和S11接口信令;
步骤202:从S1-MME接口信令中提取标识对{GUTI、下行F-TEID、上行F-TEID};
步骤203:从S11接口信令中提取标识对{IMSI、下行F-TEID、上行 F-TEID};
步骤204:将S1-MME接口和S11接口传递标识对进行关联,并生成相应的用户标识表;
步骤205:利用S1-MME接口信令中GUTI或下行F-TEID或上行F-TEID信息查询用户标识表,获取到IMSI;
同理,当第一接口为S10接口时,获取IMSI的过程与上述当第一接口为S11接口时获取IMSI的过程类似,这里就不再赘述。
本实施例方法提出使用S1-MME接口与S11接口关键字关联方式,获取用户IMSI。在S1-MME接口的信令流程,都会在S11接口触发对应信令流程。S1-MME接口信令流程会携带GUTI。S11接口的GTP信令流程会携带IMSI。而且一个用户在S1-MME接口、S11接口信令中携带相同S1-U承载通道标识下行F-TEID(即下行GTP-TEID、IP)和上行F-TEID(即上行GTP-TEID、IP)。本实施例方法在S11接口信令中采集IMSI与上下行F-TEID;在S1-MME接口信令中采集GUTI、上下行F-TEID;然后进行关联建立用户标识表,最后利用S1-MME接口信令中GUTI或者上、下行F-TEID查询用户标识表,获取IMSI。
另外本实施例方法可以使用S1-MME接口与S10接口关键字关联方式,获取用户IMSI。在S1-MME接口的信令流程,都会在S10接口触发对应信令流程。在S10接口信令流程中会携带IMSI以及与S1-MME接口的信令携带相同的GUTI。本实施例方法可以在S10接口信令中采集GUTI和IMSI,在S1-MME接口信令中采集GUTI,然后进程关联建立用户标识表,最后利用S1-MME接口信令中GUTI查询用户标识表,获取IMSI。
在本实施例方法的基础上,还可以将获取IMSI回填到话单中,使得S1-MME接口话单都有IMSI,直接关联到用户。
实施例二:
如图3所示,为了解决无法从S1-MME接口信令流程中获取IMSI的问题,本实施例提供了一种IMSI获取装置,包括:采集模块、第一获取模块、 第二获取模块、用户标识关联模块以及IMSI获取模块,其中:
所述采集模块,设置为采集S1-MME接口信令、和与所述S1-MME接口信令关联的第一接口信令;
所述第一获取模块,设置为从所述S1-MME接口信令中获取第一标识;
所述第二获取模块,设置为从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
所述用户标识关联模块,设置为对所述第一标识、所述第二标识和所述IMSI进行关联;
所述IMSI获取模块,设置为根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI。
本发明实施例提供的IMSI获取装置利用S1-MME接口信令和携带IMSI的第一接口信令具有相联系的标识的特性,关联两接口信令相应的标识使得可以利用S1-MME接口信令中第一标识直接获取IMSI;与相关技术相比,本发明实施例的装置可以完整获取到S1-MME接口信令对应的用户标识IMSI,进而可以为信令监测话单提供IMSI,使得信令监测话单可以联系用户,提高了用户体验。
在上述IMSI获取装置的基础上,本实施例还提供了一种改进方案为:所述用户标识关联模块,是设置为对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;所述IMSI获取模块,是设置为根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
本实施例装置中用户标识关联模块设置为将S1-MME接口和第一接口的标识关联后生成一用户标识表,供查询IMSI。
可选地,本实施例中所述第一标识包括:GUTI和/或第三标识。
可选地,本实施例中所述第一标识包括:GUTI和第三标识、或者第三标识时;所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
可先地,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11接口信令;所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中 的至少一种。
可先地,本实施例中所述第一标识包括:GUTI,且所述与所述S1-MME接口信令关联的第一接口信令的包括:S10接口信令;所述第二标识与所述GUTI为所述S1-MME接口信令和所述第一接口信令携带的相同GUTI。
利用本实施例提供的IMSI获取装置可以获取与S1-MME接口信令流程对应的IMSI,进而为信令监测话单提供IMSI,使得信令监测话单可以联系用户,提高了用户体验。
实施例三:
如图4所示,为了克服目前信令监测***无法从S1-MME接口信令流程中获取IMSI,导致S1-MME口信令监测***生成的话单缺失IMSI,话单信息不完整的问题;本实施例提供了一种信令监测***,包括:数据接入模块、接口协议识别模块、S1-MME接口信令监测分析模块、第一接口用户标识获取模块、用户标识关联模块和话单发送模块,其中:
所述数据接入模块,设置为采集S1-MME接口数据报文、第一接口数据报文,所述第一接口数据报文为与S1-MME接口关联的第一接口的数据报文;
所述接口协议标识模块,是设置为对采集的数据报文进行处理,将S1-MME接口数据报文发送到所述S1-MME接口信令监测分析模块,将第一接口数据报文发送给所述第一接口用户标识获取模块;
所述S1-MME接口信令监测分析模块,设置为从所述S1-MME接口数据报文提取S1-MME接口信令,对所述S1-MME接口信令进行处理生成S1-MME接口信令话单;从所述S1-MME接口信令中获取GUTI和第一标识;以及根据所述用户标识关联模块的关联结果所述S1-MME接口信令中所述第一标识获取相应的IMSI并回填到所述S1-MME接口信令话单中;
所述第一接口用户标识获取模块,设置为从所述第一接口数据报文中提取第一接口信令,并从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
所述用户标识关联模块,设置为对所述第一标识、所述第二标识和所述 IMSI进行关联;
所述话单发送模块,设置为将回填后的S1-MME接口信令话单发送给上层***。
本实施例的信令监测***可以完整获取到用户标识IMSI信息,并且将获取的IMSI回填到生成的话单中,使得信令监测话单有用户标识。
在上述信令监测***的基础上,本实施例提供了一种改进方案为:所述用户标识关联模块,是设置为对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;所述S1-MME接口信令监测分析模块,是设置为根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
本实施例信令监测可以通过生成用户标识表,然后通过查表的方式获取IMSI。
在上述信令监测***的基础上,可选地,所述第一标识包括:GUTI和/或第三标识。
当所述第一标识包括:GUTI和第三标识、或者第三标识时;所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。此时,所述第一接口可以为S11接口,第一接口信令为S11接口信令,其中所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中的至少一种。
本实施例信令监测***可以采集所述S1-MME接口信令中GUTI、和与第一接口信令携带的相同标识;采集第一接口信令中IMSI和与述S1-MME接口信令携带的相同标识;然后关联采集到的标识生成一用户标识表供查询IMSI。
当所述第一标识包括GUTI时,所述第一标识与所述第二标识为所述S1-MME接口信令和所述第一接口信令携带的相同GUTI。此时,所述第一接口可以为S10接口,第一接口信令为S10信令,其中第二标识和第一标识均为GUTI。
本实施例信令监测可以采集所述S1-MME接口信令中GUTI;采集第一 接口信令中IMSI和与述S1-MME接口信令携带的相同GUTI;然后关联采集到的标识生成一用户标识表供查询IMSI。
下面以第一接口为S11接口为例来介绍本实施例中信令监测***获取IMSI过程,如图5所示,本实施例信令监测***中第一接口用户标识获取模块为S11接口用户标识获取模块;包括如下步骤:
第一步:数据接入模块采集S1-MME接口、S11接口数据报文,并传递给接口协议识别模块;
第二步:接口协议识别模块对采集数据报文进行协议解码、进行地址端口、协议匹配,判断出每个报文的接口类型、协议层次,并传递数据报文给对应接口处理模块,即传递给S1-MME接口信令监测分析模块或S11接口用户标识获取模块;
第三步:S1-MME接口信令监测分析模块是***核心,接收S1-MME接口数据报文,对S1-MME接口上信令进行解析、流程匹配、话单生成;同时获取信令中IMSI、GUTI、下行F-TEID、上行F-TEID标识对(绝大部分场景无IMSI),传递给用户标识关联模块,并从关联模块查询IMSI,获取IMSI回填到S1-MME口的话单中;
第四步:S11接口用户标识获取模块接收S11接口数据报文,只对GTP-C信令进行解密分析,获取信令中IMSI、下行F-TEID、上行F-TEID标识对,并传递给用户标识关联模块;
第五步:用户标识关联模块,接收S1-MME口、S11口用户标识对,进行关联生成完整用户标识表{IMSI、GUTI、下行F-TEID、上行F-TEID},并提供S1-MME接口进行查询;
第六步:话单发送模块,接收S1-MME接口信令监测生成并进行IMSI回填后话单,并发送给上层***。
本实施例的监测***还可以根据上述步骤维护用户标识表,包括创建、更新、删除表中记录。
如图6所示,为S1-MME接口信令监测分析模块、S11接口用户标识获取模块以及用户标识关联模块协作获取IMSI的过程,包括如下流程:
流程1,S1-MME接口信令监测分析模块传递标识对{GUTI、下行F-TEID、上行F-TEID}給用户标识关联模块,但大部分情况下,标识对中不存在IMSI,标识对信息传递给用户标识关联模块;
流程2,S11接口用户标识获取模块传递标识对{IMSI、下行F-TEID、上行F-TEID}給用户标识关联模块;
流程3,用户标识关联模块,使用下行F-TEID、上行F-TEID把S1-MME接口和S11接口传递标识对进行关联,并保存到用户标识表中;
流程4,S1-MME接口信令监测分析模块使用GUTI或下行F-TEID或上行F-TEID信息查询用户标识表,获取到IMSI并回填到S1-MME接口信令话单中。
下面通过一次用户附着流程,来介绍本实施例的信令监测***,如图7所示,包括如下流程:
流程1,用户终端开启网络访问,终端发送Attach Request(附着请求)信息给基站,请求附着;
流程2,基站eNodeB在S1-MME接口转发Attach Request消息给核心网设备MME(移动性管理实体),要求进行附着,该消息携带GUTI,大部分情况不携带IMSI;
流程3、4、5、6、7,终端、基站eNodeB(演进型Node B)、MME(移动性管理实体)、HSS(归属用户服务器)进行附着的鉴权(Authentication)、位置更新(Update Location)流程;
流程8,MME在S11接口向Sering-GW(服务网关)对附着用户发送创建会话请求Create Session Re quest(创建会话请求),该消息携带IMSI;
流程9,Sering-GW返回创建会话响应Create Session Response(创建会话响应),该消息携带上行F-TEID;
在S11接口,S11接口用户标识获取模块结合Create Session Request和Create Session Response消息,获取用户标识对{IMSI,上行F-TEID},并传递给用户标识关联模块,生成用户表格附图8。
流程10,MME在S1-MME接口向eNodeB返回附着接受消息。该消息 携带{上行F-TEID};
在S1-MME接口,S1-MME接口信令监测分析模块结合Attach Request到Attach Accept(附着接受)消息,获取用户标识对{GUTI、上行F-TEID},并传递给用户标识关联模块,生成用户标识表附图9,并从用户标识关联模块查询返回对应用户标识IMSI。S1-MME接口信令监测分析模块对Attach Request到Attach Accept消息进行解析生成附着流程话单,并在查询到IMSI之后,把查询到IMSI回填到话单中,并向话单发送模块发送本话单。
流程11,eNodeB向终端返回Attach Accept;
流程12,终端向eNodeB发送Attach Complete(附着完成);
流程13,eNodeB在S1-MME口向MME发送Initial Context Setup Response(初始上下文建立响应)消息,该消息携带下行F-TEID;
S1-MME接口分析模块把流程中标识对{GUTI、下行F-TEID、上行F-TEID}传递给用户标识关联模块,形成完整用户标识表,附图10。
流程14,eNodeB向MME返回Attach Complete(附着完成);
流程15、16,MME在S11口与Sering-GW发送接收Modify Bearer Request(修改承载请求)、Modify Bearer Response(修改承载请求响应)消息。该消息携带下行F-TEID。S11接口用户标识获取模块把流程中标识对{GUTI、下行F-TEID、上行F-TEID}传递给用户标识关联模块,形成完整用户标识表。
后续在S1-MME接口发起的新信令流程,只需要携带GUTI或下行F-TEID或上行F-TEID,都可以在用户标识表中查询到IMSI,并回填到信令话单中。
应当理解的是:本实施例的信令监测***不仅限于应用到上述用户附着的流程中,还可以应用到其他信令流程中;本实施例信令监测***工作原理是根据S1-MME接口携带GUTI、下行F-TEID、上行F-TEID,S11接口携带IMSI、下行F-TEID、上行F-TEID,就可以进行关联,获取到IMSI,回填到S1-MME接口信令话单中。实际运用中也不限于与S11接口关联,还可以与S10接口关联,使用GUTI关联获取IMSI。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成,上述程序可以存储于计算机可读存储介质中,如只读存储器、磁盘或光盘等。可选地,上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地,上述实施例中的各模块/单元可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。本发明实施例不限制于任何特定形式的硬件和软件的结合。
工业实用性
本发明实施例的方法可以完整获取到S1-MME接口信令对应的用户标识IMSI,进而可以为信令监测话单提供IMSI,使得信令监测话单可以联系用户,提高了用户体验。

Claims (18)

  1. 一种国际移动用户识别码IMSI获取方法,包括如下步骤:
    采集S1-MME接口信令、以及与所述S1-MME接口信令关联的第一接口信令;
    从所述S1-MME接口信令中获取第一标识;
    从所述第一接口信令中获取IMSI和第二标识,所述第二标识为与所述第一标识相联系的标识;
    对所述第一标识、所述第二标识和所述IMSI进行关联;
    根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI。
  2. 如权利要求1所述的IMSI获取方法,所述对所述第一标识、所述第二标识和所述IMSI进行关联的步骤包括:
    对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;
    所述根据关联结果和所述S1-MME接口信令中的所述第一标识获取相应的IMSI的步骤包括:
    根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
  3. 如权利要求1或2所述的IMSI获取方法,其中,所述第一标识包括:全球唯一临时用户设备标识GUTI和/或第三标识。
  4. 如权利要求3所述的IMSI获取方法,其中,当所述第一标识包括GUTI和第三标识、或者第三标识时,所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
  5. 如权利要求4所述的IMSI获取方法,其中,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11接口信令;所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中的至少一种。
  6. 如权利要求3所述的IMSI获取方法,其中,当所述第一标识包括:GUTI时;所述第一标识与所述第二标识为所述S1-MME接口信令和所述第 一接口信令携带的相同GUTI。
  7. 如权利要求6所述的IMSI获取方法,其中,所述与所述S1-MME接口信令关联的第一接口信令的包括:S10接口信令。
  8. 一种IMSI获取装置,包括:采集模块、第一获取模块、第二获取模块、用户标识关联模块以及IMSI获取模块,其中:
    所述采集模块,设置为采集S1-MME接口信令、以及与所述S1-MME接口信令关联的第一接口信令;
    所述第一获取模块,设置为从所述S1-MME接口信令中获取第一标识;
    所述第二获取模块,设置为从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
    所述用户标识关联模块,设置为对所述第一标识、所述第二标识和所述IMSI进行关联;
    所述IMSI获取模块,设置为根据关联结果和所述S1-MME接口信令中所述第一标识获取相应的IMSI。
  9. 如权利要求8所述的IMSI获取装置,所述用户标识关联模块是设置为对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;
    所述IMSI获取模块是设置为根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
  10. 如权利要求8或9所述的IMSI获取装置,其中,所述第一标识包括:全球唯一临时用户设备标识GUTI和/或第三标识。
  11. 如权利要求10所述的IMSI获取装置,其中,当所述第一标识包括:GUTI和第三标识、或者第三标识时,所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
  12. 如权利要求11所述的IMSI获取装置,其中,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11接口信令;所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中的至少一种。
  13. 如权利要求10所述的IMSI获取装置,其中,所述第一标识包括: GUTI,且所述与所述S1-MME接口信令关联的第一接口信令的包括:S10接口信令;所述第二标识与所述GUTI为所述S1-MME接口信令和所述第一接口信令携带的相同GUTI。
  14. 一种信令监测***,包括:数据接入模块、接口协议识别模块、S1-MME接口信令监测分析模块、第一接口用户标识获取模块、用户标识关联模块和话单发送模块,其中:
    所述数据接入模块,设置为采集S1-MME接口数据报文、第一接口数据报文,所述第一接口数据报文为与S1-MME接口关联的第一接口的数据报文;
    所述接口协议标识模块,设置为对采集的数据报文进行处理,将S1-MME接口数据报文发送到所述S1-MME接口信令监测分析模块,将第一接口数据报文发送给所述第一接口用户标识获取模块;
    所述S1-MME接口信令监测分析模块,设置为从所述S1-MME接口数据报文提取S1-MME接口信令,对所述S1-MME接口信令进行处理生成S1-MME接口信令话单;从所述S1-MME接口信令中获取GUTI和第一标识;以及根据所述用户标识关联模块的关联结果所述S1-MME接口信令中所述第一标识获取相应的IMSI并回填到所述S1-MME接口信令话单中;
    所述第一接口用户标识获取模块,设置为从所述第一接口数据报文中提取第一接口信令,并从所述第一接口信令中获取IMSI和所述第二标识,所述第二标识为与所述第一标识相联系的标识;
    所述用户标识关联模块,设置为对所述第一标识、所述第二标识和所述IMSI进行关联;
    所述话单发送模块,设置为将回填后的S1-MME接口信令话单发送给上层***。
  15. 如权利要求14所述的信令监测***,所述用户标识关联模块是设置为对所述第一标识、所述第二标识和所述IMSI进行关联生成用户标识表;
    所述S1-MME接口信令监测分析模块是设置为根据所述S1-MME接口信令中的所述第一标识查询所述用户标识表获得相应的IMSI。
  16. 如权利要求14或15所述的信令监测***,其中,所述第一标识包 括:GUTI和/或第三标识。
  17. 如权利要求16所述的信令监测***,其中,所述第一标识包括:GUTI和第三标识、或者第三标识时;所述第二标识与所述第三标识为所述S1-MME接口信令和所述第一接口信令携带的相同标识。
  18. 如权利要求17所述的信令监测***,其中,所述与所述S1-MME接口信令关联的第一接口信令的包括:S11接口信令;所述第二标识和所述第三标识包括上行F-TEID、下行F-TEID中的至少一种。
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