WO2013063897A1

WO2013063897A1 - Method and device for back filling subscriber fixed identity

Info

Publication number: WO2013063897A1
Application number: PCT/CN2012/073194
Authority: WO
Inventors: 贾林; 张敏; 卞忠鸣
Original assignee: 北京中创信测科技股份有限公司
Priority date: 2011-11-02
Filing date: 2012-03-28
Publication date: 2013-05-10
Also published as: CN102421092B; CN102421092A

Abstract

Disclosed are a method and device for back filling a subscriber fixed identity. The method includes: acquiring signalling data of an A interface in the circuit switching (CS) domain and a GN interface of the packet switching (PS) domain (101); combining a CS domain call description record (CDR) and a PS domain call description record (CDR) according to the CS domain signalling data and PS domain signalling data respectively (102); extracting key information in the CDR of the CS domain and the CDR of the PS domain; the CS domain and PS domain back filling the international mobile subscriber identification number (IMSI) thereof according to the key information thereof respectively (104); by way of collecting signalling data, combing the CDR according to the signalling data and extracting key information and subscriber identity information in the CDR, after back filling the IMSI through the key information and the IMSI back filling the mobile subscriber international integrated service digital network code (MSISDN)/international mobile equipment identity (IMEI), synchronizing the subscriber identity information in the CS domain and PS domain, to realize the backfilling integration of the subscriber identity in the CS domain and PS domain to complete the CDR subscriber information.

Description

Method and device for backfilling user fixed identity

The present invention relates to the field of communications, and more particularly to a method and apparatus for backfilling a user's fixed identity.

With the continuous development of telecommunication network services, operators hope to analyze more specific user behaviors and location trajectory information. But in the signaling monitoring system, the user identity information carried by the signaling data, such as IMSI (International Mobile Subscriber Identification Number, MSISDN (Integrated Service) Digital Network, Integrated Services Digital Network, is the mobile number of the calling user calling the mobile subscriber), IMEI (International Mobile Equipment) Identity, international mobile device identification code, etc., are incomplete, resulting in difficulty in analyzing user-level and inaccurate analysis results. Therefore, it is very important to back up the user identity of the signaling data.

In the mobile network, usually the GN signaling data of the packet domain (PS) carries the IMSI of the user, the MSISDN, and the IMEI information is relatively complete; the A port of the circuit domain (CS) can only obtain the TMSI (Temporary) Mobile Subscriber Identity, temporary mobile user identity) and IMSI relationship, monitoring MAP (Mobile Application Platform, mobile application platform data, it is easy to obtain the information of IMSI and MSISDN, so by integrating the user information of CS and PS, the user identity information of signaling data can be complemented.

At present, in the user service analysis, only the signaling data carrying the user identity is analyzed, but the IMEI of the existing circuit domain network signaling data does not appear, and the MAP data of the circuit domain network is often not monitored. MSISDN and IMSI are not easy to obtain, and the information is not complete enough, so the circuit domain network is based on MSISDN/ The function of IMEI for business analysis cannot be realized.

Technical solution

In view of this, the present invention provides a method and apparatus for backfilling a user's fixed identity to overcome the fact that the IMEI is not substantially present in the existing circuit domain network signaling data, and the MAP data of the circuit domain network is often not monitored. In the meantime, MSISDN and IMSI are not easy to obtain, so the function of performing service analysis based on IMEI/MSISDN in the circuit domain network cannot be realized.

To achieve the above object, the present invention provides the following technical solutions:

A method for backfilling a user's fixed identity, the method specifically includes:

Obtaining signaling data of the A interface of the circuit domain CS and the GN interface of the packet domain PS;

Generating a circuit domain CS call description record CDR and a packet domain PS call description record CDR according to the circuit domain CS signaling data and the packet domain PS signaling data, respectively;

Extracting the circuit domain CS call description record CDR and the packet domain PS call description record key information in the CDR, the key information is a temporary mobile user identity TMSI and a tunnel endpoint identifier TEID;

The circuit domain CS and the packet domain PS respectively backfill respective international mobile subscriber identity codes IMSI through respective key information;

The MSISDN/IMEI in the circuit domain CS is backfilled according to the mobile number MSISDN/International Mobile Equipment Identity (IMI) in the packet domain PS.

The circuit domain CS and the packet domain PS are respectively backfilled with respective international mobile subscriber identity codes (IMSIs) through respective key information:

In the data domain CS network, the circuit domain CS call description record CDR of the A interface synthesis carries the TMSI, and when the user acts as the called party, the circuit domain CS call description records the relationship between the CDR carrying the TMSI and the IMSI, and records the relationship. The relationship between the TMSI and the IMSI;

In the packet domain PS network, the CDR interface synthesized by the GN interface records the CDR carrying the TEID, and when the PDP context is established, records the TEID and the IMSI carried by the CDR according to the packet domain PS call description, and establishes a similar translation table. And, when updating the PDP context, deleting the CDR of the PDP context, searching for the translation table node by using the TEID, thereby filling the IMSI in the translation table into the packet domain PS call description record CDR.

The MSISDN/IMEI in the backfill circuit domain CS according to the mobile phone number MSISDN/International Mobile Equipment Identity (IMEI) in the packet domain PS is specifically:

When the amount of data is not large, the circuit domain CS and the backfill of the packet domain PS are deployed on the same server, and the CDR synthesized by the circuit domain CS and the CDR synthesized by the packet domain PS are backfilled by respective IMSIs. After the module, enter the unified IMSI backfill MSISDN/IMEI module;

or

When the amount of data is relatively large and the network bandwidth is limited, the backfilling of the circuit domain CS and the backfilling of the packet domain PS are physically isolated, that is, respectively deployed on different servers, and the circuit domain CS and the packet domain PS are each backfilled by the key information. After the IMSI, the respective IMSI backfill MSISDN/IMEI module is entered, and when the update occurs in the translation table node of the packet domain PS, the translation table information data of the packet domain PS is synchronized into the circuit domain CS.

Wherein, the establishment of the translation table is specifically:

Generating a hash according to the IMSI;

Searching for the user information record in the translation table of the user identity. If the record is found and the value of the MSISDN and IMEI in the synthesized CDR is not empty, the MSISDN and IMEI in the CDR are used to update to the translation table record. If the value of MSISDN and IMEI in the CDR is null, the MSISDN and IMEI in the translation table record are updated into the CDR packet. If no record is found, a hash table is established according to the IMSI, and the user's IMSI, MSISDN, IMEI is stored as a translation table record;

The translation table is updated when the MSISDN or IMEI of the same user changes.

The synchronizing table information data of the packet domain PS is synchronized into the circuit domain CS, and the information data is transmitted in a manner similar to TLV.

A device for backfilling user fixed information, the device specifically includes:

An obtaining unit, configured to acquire signaling data of an A interface of the circuit domain CS and a GN interface of the packet domain PS;

a synthesizing unit, configured to separately synthesize a circuit domain CS call description record CDR and a packet domain PS call description record CDR according to the circuit domain CS signaling data and the packet domain PS signaling data;

An extracting unit, configured to extract key information in the circuit domain CS call description record CDR and the packet domain PS call description record CDR, where the key information is a temporary mobile user identity TMSI and a tunnel endpoint identifier TEID;

a backfilling unit for the circuit domain CS and the packet domain PS to backfill respective international mobile subscriber identity codes IMSI through respective key information;

A unified backfill unit is configured to backfill the MSISDN/IMEI in the circuit domain CS according to the MSISDN/IMEI in the packet domain PS.

The backfilling unit includes:

a first backfilling module, in the data domain CS network, the circuit domain CS call description record CDR of the A interface synthesis carries the TMSI, and when the user is called, the circuit domain CS call description records the CDR carrying the TMSI and IMSI relationship and record the relationship between TMSI and IMSI;

a second backfilling module, configured to record, in the packet domain PS network, the CDR interface synthesized by the GN interface, the CDR carrying the TEID, and when establishing the PDP context, record the TEID carried by the CDR according to the packet domain PS call description The IMSI establishes a node similar to the translation table. When the PDP context is updated and the CDR of the PDP context is deleted, the translation table node is searched by the TEID, thereby filling the IMSI in the translation table into the packet domain PS. The call description is recorded in the CDR.

The unified backfill module includes:

Backfilling the MSISDN/IMEI module, when the amount of data is not large, deploying the backfill of the circuit domain CS and the packet domain PS on the same server, and synthesizing the CDRs of the CS domain and the PS of the packet domain The CDRs are backfilled by the IMSI after passing through the respective IMSI backfill modules;

or

The quarantine backfill module is used to physically isolate the backfilling of the circuit domain CS and the backfilling of the packet domain PS when the data volume is relatively large and the network bandwidth is limited, that is, respectively, deployed on different servers, and the circuit domain CS and the packet domain PS respectively pass After backfilling the IMSI, the key information is entered into the respective IMSI backfill MSISDN/IMEI module, and when the translation table node of the packet domain PS is updated, the translation table information data of the packet domain PS is synchronized to the circuit domain CS. in.

Wherein the device comprises:

Establish a translation table module for user information record, which is convenient for user identity search.

Wherein, the device further comprises:

Transmitting an information data module for synchronizing translation table information data of the packet domain PS into the circuit domain CS, using a similar TLV method

Beneficial effect

According to the foregoing technical solution, compared with the prior art, the present invention discloses a method and a device for backfilling a user's fixed identity, and collecting CDRs according to signaling data by collecting signaling data of the circuit domain CS and the packet domain PS. The key information and user identity information in the CDR are extracted, and the user identity information of the circuit domain CS and the packet domain PS is synchronized in real time after the IMSI and the IMSI are backfilled with the key information backfilling the MSISDN/IMEI to realize the circuit domain CS and the packet domain PS user identity. The backfill integration integrates the user information of the CDR to facilitate subsequent user-level data analysis.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are merely embodiments of the present invention, Those of ordinary skill in the art will be able to obtain other figures from the drawings provided without the inventive effort.

FIG. 1 is a flowchart of a method for backfilling a user's fixed identity according to an embodiment of the present invention;

2 is a schematic diagram of establishing a translation table for backfilling a user's fixed identity according to an embodiment of the present invention;

3 is a model diagram of backfilling a user's fixed identity according to an embodiment of the present invention;

4 is a schematic diagram of physical isolation of a backfill user fixed identity according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an apparatus for backfilling a user's fixed identity according to an embodiment of the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

FIG. 1 is a flowchart of a method for backfilling a user's fixed identity according to an embodiment of the present invention. The present invention discloses a method for backfilling a user's fixed identity, and the method includes:

Step 101: Acquire signaling data of the A interface of the circuit domain CS and the GN interface of the packet domain PS;

The signaling data is synthesized into a call description record CDR by detecting the A interface of the circuit domain CS and the GN interface of the packet domain PS, and the user's fixed identity is learned by recording the key information in the CDR by the call description. Some CDRs for PS/CS have no fixed user identity (ie IMSI/MSISDN/IMEI), extract temporary user identity, and learn the fixed user identity of the CDR through historical CDR learning.

Step 102: Synthesize a circuit domain CS call description record CDR and a packet domain PS call description record CDR according to the circuit domain CS signaling data and the packet domain PS signaling data, respectively;

In the circuit domain CS network, the circuit domain CS call description record CDR of the A interface synthesis carries the TMSI, and when the user acts as the called party, the circuit domain CS call description records the relationship between the CDR carrying the TMSI and the IMSI, and records The relationship between the TMSI and the IMSI, the subsequent A interface CDR is associated with the corresponding IMSI through the TMSI, thereby backfilling the IMSI identity of the user.

In the packet domain PS network, the CDR interface synthesized by the GN interface records that the CDR carries the TEID. In the signaling service, only the GN establishes the PDP context to have the IMSI, the MSISDN, and the IMEI, and the GN updates the PDP context and deletes the PDP. The context does not carry the IMSI. When the PDP context is established, the TEID and IMSI carried by the CDR are recorded according to the packet domain PS call description, and a node similar to the translation table is established. When the PDP context is updated and the CDR of the PDP context is deleted, the CDR is passed. The TEID searches the translation table node, so that the IMSI in the translation table is filled into the packet domain PS call description record CDR, and the fixed identity padding of the CDR is completed.

In the backfilling process of the user's fixed identity, it is necessary to establish a translation table, which is obtained through each CDR learning. For each CDR that needs to backfill the identity information, first, generate a hash according to the IMSI, and translate the user identity. Find the record. If the record is found and the value of the MSISDN and IMEI in the CDR is not empty, use the MSISDN and IMEI in the CDR to update to the translation table. If the value of the MSISDN and IMEI in the CDR is null, the MSISDN and IMEI in the translation table record are used to update to the CDR packet. If no record is found, a hash table is established according to the IMSI, and a user's IMSI, MSISDN, and IMEI are stored as a translation table record. When the MSISDN or IMEI of the same user changes, the translation table is updated. Referring to FIG. 2, a schematic diagram of establishing a translation table for backfilling a user's fixed identity is disclosed.

Step 103: Extract key information in the circuit domain CS call description record CDR and the packet domain PS call description record CDR, where the key information is a temporary mobile user identity TMSI and a tunnel endpoint identifier TEID;

Step 104: The circuit domain CS and the packet domain PS respectively backfill respective international mobile subscriber identity codes IMSI through respective key information;

Please refer to FIG. 3 , which is a model diagram of backfilled user identity information disclosed in the present invention. For a circuit domain CS and a packet domain PS that does not carry a user-defined identity CDR, according to specific signaling service characteristics, according to Some key information is backfilled with the IMSI according to the method in step 103, and then the MSISDN and IMEI identity information are backfilled through the IMSI. The key information is analyzed according to the specific signaling specification, and the fields need to be used to backfill the IMSI, for example, the control plane TEID of the GN interface. TMSI with A interface.

Step 105: Backfill the MSISDN/IMEI in the circuit domain CS according to the mobile phone number MSISDN/International Mobile Equipment Identity IMEI in the packet domain PS.

Generally, when the amount of data is not large, the backfilling of the circuit domain CS and the packet domain PS can be deployed on one server. At this time, the CDRs of the circuit domain CS and the packet domain PS enter the unified after passing through the respective backfill IMSI modules. The IMSI backfills the MSISDN/IMEI module to complete the CS/PS user identity backfill integration.

When the amount of data is relatively large and the network bandwidth is limited, the backfilling of the circuit domain CS and the packet domain PS needs to be physically isolated, that is, respectively deployed on different servers, so it is necessary to consider the synchronization problem of user identity information between multiple servers. Referring to FIG. 4, a schematic diagram of physical isolation of a backfill user fixed identity is disclosed. The circuit domain CS and the packet domain PS are respectively responsible for backfilling the IMSI through key information, and then the CDR enters the respective IMSI backfill MSISDN/IMEI. Module. When an update occurs in the translation table node of the packet domain PS, the translation information (IMSI, MSISDN, IMEI) of the packet domain PS is synchronously synchronized into the translation table of the circuit domain CS, thereby complementing the circuit domain CS user identity information. For data synchronization between servers, the format and endianness of the synchronous data are fixed considering that the operating system of the server may be different. Since there are not many fields of synchronous data and heads-up data, consider using TLV-like data to transmit data, that is, each record carries the name, length, and value. After the IMSI backfill MSISDN/IMEI module receives the synchronization data, it resolves the IMSI. After the values of MSISDN and IMEI, find the translation table node and perform the update operation.

As described above, by collecting the signaling data of the circuit domain CS and the packet domain PS, synthesizing the CDR according to the signaling data, extracting the key information and the user identity information in the CDR, and backfilling the MSISDN/IMEI after backfilling the IMSI and the IMSI through the key information backfilling, The user identity information of the circuit domain CS and the packet domain PS is synchronized in real time, and the backfilling integration of the circuit domain CS and the packet domain PS user identity is realized, and the user information of the CDR is complemented, thereby facilitating subsequent user-level data analysis.

The method is described in detail in the above-disclosed embodiments of the present invention, and the method of the present invention can be implemented in various forms of the apparatus. Therefore, the present invention also discloses an apparatus, and a specific embodiment will be described in detail below.

Please refer to FIG. 5, which is a schematic diagram of a device for backfilling a user's fixed identity according to the present invention.

The device includes: an obtaining unit 501, a synthesizing unit 502, an extracting unit 503, a backfilling module 504, and a unified backfilling module 504. The obtaining unit 501 is configured to acquire the A interface of the circuit domain CS and the GN interface of the packet domain PS. Signaling data; the synthesizing unit 502, configured to separately synthesize a circuit domain CS call description record CDR and a packet domain PS call description record CDR according to the circuit domain CS signaling data and the packet domain PS signaling data; the extracting unit 503. For extracting key information in the circuit domain CS call description record CDR and the packet domain PS call description record CDR, where the key information is a temporary mobile user identity TMSI and a tunnel endpoint identifier TEID; the backfill module 504. The circuit domain CS and the packet domain PS are respectively used to backfill respective international mobile subscriber identity codes IMSI through respective key information. The unified backfill module 505 is configured to be used according to the packet domain PS. MSISDN/IMEI backfills the MSISDN/IMEI in the circuit domain CS. The backfilling module 504 includes: a first backfilling module 506, in the data domain CS network, the circuit domain CS call description record CDR of the A interface synthesized carries the TMSI, when the user acts as a called The circuit domain CS call description record CDR carries the relationship between TMSI and IMSI, and records the relationship between the TMSI and the IMSI; the second backfill module 507 is used in the packet domain PS network, the packet domain PS synthesized by the GN interface The call description record CDR carries the TEID. When the PDP context is established, the TEID and the IMSI carried by the CDR are recorded according to the packet domain PS call description, and a node similar to the translation table is established. When the PDP context is updated and the CDR of the PDP context is deleted, the CDR is deleted. And searching, by the TEID, the translation table node, so that the IMSI in the translation table is filled into the packet domain PS call description record CDR.

The unified backfill module 505 includes: a backfill MSISDN/IMEI module 508, configured to deploy backfilling of the circuit domain CS and the packet domain PS on the same server when the amount of data is not large, the circuit domain The CS synthesized CDR and the packet domain PS synthesized CDR are unified MSISDN/IMEI backfill after passing through the respective IMSI backfill module. The quarantine backfill module 509 is configured to physically isolate the backfilling of the circuit domain CS and the backfilling of the packet domain PS when the data volume is relatively large and the network bandwidth is limited, that is, respectively, deployed on different servers, and the circuit domain CS and the packet domain PS are respectively After backfilling the IMSI through the key information, entering the respective IMSI backfill MSISDN/IMEI module, when the update of the translation table node of the packet domain PS occurs, synchronizing the translation table information data of the packet domain PS to the circuit domain In CS. The method further includes: establishing a translation table module 510, configured to perform user information recording, to facilitate user identity searching; and a transmission information data module 511, configured to synchronize translation table information data of the packet domain PS into the circuit domain CS, using similar TLV mode.

The following describes the working process of the device. First, the obtaining unit 501 acquires signaling data of the A interface of the circuit domain CS and the GN interface of the packet domain PS; then, the synthesizing unit 502 according to the circuit domain CS signaling data and the packet domain PS The signaling data respectively synthesizes the circuit domain CS call description record CDR and the packet domain PS call description record CDR; the extracting unit 503 extracts the key information in the circuit domain CS call description record CDR and the packet domain PS call description record CDR, The key information is a temporary mobile subscriber identity TMSI and a tunnel endpoint identifier TEID; the backfill module 504 backfills the circuit domain CS and the packet domain PS with respective international mobile subscriber identity codes IMSI through respective key information; Finally, the unified backfill module 505 backfills the MSISDN/IMEI in the circuit domain CS according to the MSISDN/IMEI in the packet domain PS. It can be seen that the device can synthesize the CDR according to the signaling data by acquiring the signaling data of the circuit domain CS and the packet domain PS, extract the key information and the user identity information in the CDR, and backfill the MSISDN/IMEI through the key information backfilling the IMSI and the IMSI. After that, the user identity information of the circuit domain CS and the packet domain PS is synchronized in real time, and the backfilling integration of the circuit domain CS and the packet domain PS user identity is realized, and the user information of the CDR is complemented, thereby facilitating subsequent user-level data analysis.

In summary, the present invention discloses a method and apparatus for backfilling a user's fixed identity. By collecting signaling data of the circuit domain CS and the packet domain PS, synthesizing the CDR according to the signaling data, and extracting key information and user identity in the CDR. After the IMSI and IMSI are backfilled with the key information backfilling the MSISDN/IMEI, the user identity information of the circuit domain CS and the packet domain PS is synchronized in real time, and the backfilling integration of the circuit domain CS and the packet domain PS user identity is realized, and the CDR user is complemented. Information for subsequent user-level data analysis.

For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but the scope of the invention is to be accorded

Claims

A method for backfilling a user's fixed identity, the method specifically includes:

Obtaining signaling data of the A interface of the circuit domain CS and the GN interface of the packet domain PS;

Generating a circuit domain CS call description record CDR and a packet domain PS call description record CDR according to the circuit domain CS signaling data and the packet domain PS signaling data, respectively;

Extracting the circuit domain CS call description record CDR and the packet domain PS call description record key information in the CDR, the key information is a temporary mobile user identity TMSI and a tunnel endpoint identifier TEID;

The circuit domain CS and the packet domain PS respectively backfill respective international mobile subscriber identity codes IMSI through respective key information;

The MSISDN/IMEI in the circuit domain CS is backfilled according to the mobile number MSISDN/International Mobile Equipment Identity (IMI) in the packet domain PS.
The method according to claim 1, wherein the circuit domain CS and the packet domain PS respectively backfill respective international mobile subscriber identity codes IMSI through respective key information:

In the data domain CS network, the circuit domain CS call description record CDR of the A interface synthesis carries the TMSI, and when the user acts as the called party, the circuit domain CS call description records the relationship between the CDR carrying the TMSI and the IMSI, and records the relationship. The relationship between the TMSI and the IMSI;

In the packet domain PS network, the CDR interface synthesized by the GN interface records the CDR carrying the TEID, and when the PDP context is established, records the TEID and the IMSI carried by the CDR according to the packet domain PS call description, and establishes a similar translation table. And, when updating the PDP context, deleting the CDR of the PDP context, searching for the translation table node by using the TEID, thereby filling the IMSI in the translation table into the packet domain PS call description record CDR.
The method according to claim 1, wherein the MSISDN/IMEI in the backfill circuit domain CS according to the mobile phone number MSISDN/International Mobile Equipment Identity (IMEI) in the packet domain PS is specifically:

When the amount of data is not large, the circuit domain CS and the backfill of the packet domain PS are deployed on the same server, and the CDR synthesized by the circuit domain CS and the CDR synthesized by the packet domain PS are backfilled by respective IMSIs. After the module, enter the unified IMSI backfill MSISDN/IMEI module;

or

When the amount of data is relatively large and the network bandwidth is limited, the backfilling of the circuit domain CS and the backfilling of the packet domain PS are physically isolated, that is, respectively deployed on different servers, and the circuit domain CS and the packet domain PS are each backfilled by the key information. After the IMSI, the respective IMSI backfill MSISDN/IMEI module is entered, and when the update occurs in the translation table node of the packet domain PS, the translation table information data of the packet domain PS is synchronized into the circuit domain CS.
The method according to claim 3, wherein the establishment of the translation table is specifically:

Generating a hash according to the IMSI;

Searching for the user information record in the translation table of the user identity. If the record is found and the value of the MSISDN and IMEI in the synthesized CDR is not empty, the MSISDN and IMEI in the CDR are used to update to the translation table record. If the value of MSISDN and IMEI in the CDR is null, the MSISDN and IMEI in the translation table record are updated into the CDR packet. If no record is found, a hash table is established according to the IMSI, and the user's IMSI, MSISDN, IMEI is stored as a translation table record;

The translation table is updated when the MSISDN or IMEI of the same user changes.
The method according to claim 3, wherein said synchronizing table translation information data of said packet domain PS is synchronized into circuit domain CS, and information data is transmitted in a TLV-like manner.
A device for backfilling user fixed information, characterized in that the device specifically includes:

An obtaining unit, configured to acquire signaling data of an A interface of the circuit domain CS and a GN interface of the packet domain PS;

a synthesizing unit, configured to separately synthesize a circuit domain CS call description record CDR and a packet domain PS call description record CDR according to the circuit domain CS signaling data and the packet domain PS signaling data;

An extracting unit, configured to extract key information in the circuit domain CS call description record CDR and the packet domain PS call description record CDR, where the key information is a temporary mobile user identity TMSI and a tunnel endpoint identifier TEID;

a backfilling unit for the circuit domain CS and the packet domain PS to backfill respective international mobile subscriber identity codes IMSI through respective key information;

A unified backfill unit is configured to backfill the MSISDN/IMEI in the circuit domain CS according to the MSISDN/IMEI in the packet domain PS.
The device according to claim 6, wherein the backfilling unit comprises:

a first backfilling module, in the data domain CS network, the circuit domain CS call description record CDR of the A interface synthesis carries the TMSI, and when the user is called, the circuit domain CS call description records the CDR carrying the TMSI and IMSI relationship and record the relationship between TMSI and IMSI;

a second backfilling module, configured to record, in the packet domain PS network, the CDR interface synthesized by the GN interface, the CDR carrying the TEID, and when establishing the PDP context, record the TEID carried by the CDR according to the packet domain PS call description The IMSI establishes a node similar to the translation table. When the PDP context is updated and the CDR of the PDP context is deleted, the translation table node is searched by the TEID, thereby filling the IMSI in the translation table into the packet domain PS. The call description is recorded in the CDR.
The device according to claim 6, wherein the unified backfill module comprises:

Backfilling the MSISDN/IMEI module, when the amount of data is not large, deploying the backfill of the circuit domain CS and the packet domain PS on the same server, and synthesizing the CDRs of the CS domain and the PS of the packet domain The CDRs are backfilled by the IMSI after passing through the respective IMSI backfill modules;

or

The quarantine backfill module is used to physically isolate the backfilling of the circuit domain CS and the backfilling of the packet domain PS when the data volume is relatively large and the network bandwidth is limited, that is, respectively, deployed on different servers, and the circuit domain CS and the packet domain PS respectively pass After backfilling the IMSI, the key information is entered into the respective IMSI backfill MSISDN/IMEI module, and when the translation table node of the packet domain PS is updated, the translation table information data of the packet domain PS is synchronized to the circuit domain CS. in.
The device of claim 8 wherein the device comprises:

Establish a translation table module for user information record, which is convenient for user identity search.
The device of claim 8 further comprising:

The information data module is configured to synchronize the translation table information data of the packet domain PS into the circuit domain CS, and adopts a similar TLV mode.