CN108012262B - IMSI (International Mobile subscriber identity) associated backfill method and platform in LTE (Long term evolution) network - Google Patents
IMSI (International Mobile subscriber identity) associated backfill method and platform in LTE (Long term evolution) network Download PDFInfo
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Abstract
The invention provides an IMSI (International Mobile subscriber identity) associated backfilling method and a platform in an LTE (Long term evolution) network, belongs to the technical field of mobile communication, and can solve the problem of low IMSI associated backfilling rate in the prior art. The IMSI correlation backfill method in the LTE network comprises the following steps: collecting SGS interface data between MME and MSC to obtain IMSI and PTMSI of user equipment when the user equipment falls back to 2G/3G network from LTE network; establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the obtained IMSI and PTMSI of the user equipment; collecting S1-MME interface data in an LTE network to acquire TMSI and PTMSI of user equipment when the user equipment is converted from a 2G/3G network to the LTE network; establishing a TMSI-PTMSI mapping table corresponding to the TMSI and the PTMSI of the user equipment according to the obtained TMSI and the PTMSI; establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI mapping table; obtaining TMSI of user equipment, and backfilling IMSI corresponding to the TMSI according to the mapping table from IMSI to TMSI.
Description
Technical Field
The invention belongs to the technical field of mobile communication, and particularly relates to an IMSI (International Mobile subscriber identity) association backfill method and platform in an LTE (Long term evolution) network.
Background
With the development of 4G networks, communication network operators are gradually changing from operating voice services to operating traffic services; the most core task of an operator in managing traffic is how to manage users, and the operator can provide the users with the best quality service only after managing the users, so that the user experience is improved. For example, through the management of each user, the operator can adjust the traffic using speed of each user according to the traffic using condition of each user, so as to ensure that the personal interests of the users are not damaged, and simultaneously, the phenomenon of 4G network breakdown caused by too high speed of using the 4G network and too many users using the 4G network can be avoided.
In the prior art, an operator generally identifies and distinguishes users by using an IMSI (International Mobile Subscriber identity) to manage the users. However, the inventors found that: in the prior art, there is only one channel for obtaining the IMSI of the user equipment, and only when the user equipment is powered on, the IMSI of the user equipment can be obtained from the initial attach request information, that is, the number of the obtained IMSIs of the user in the prior art is insufficient, so that the IMSI-TMSI mapping table formed by the TMSI corresponding to the IMSI and the IMSI is not complete enough, and the associated backfill rate of the IMSI is low.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and provides an IMSI correlation backfill method and a platform in an LTE network, which can improve the correlation backfill rate of the IMSI.
The technical scheme adopted for solving the technical problem of the invention is an IMSI association backfill method in an LTE network, which comprises the following steps:
collecting SGS interface data between MME and MSC to obtain IMSI and PTMSI of user equipment when the user equipment falls back to 2G/3G network from LTE network;
establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the obtained IMSI and PTMSI of the user equipment;
collecting S1-MME interface data in an LTE network to acquire TMSI and PTMSI of user equipment when the user equipment is converted from a 2G/3G network to the LTE network;
establishing a TMSI-PTMSI mapping table corresponding to the TMSI and the PTMSI of the user equipment according to the obtained TMSI and the PTMSI;
establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI mapping table;
obtaining TMSI of user equipment, and backfilling IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table.
Preferably, the step of acquiring the SGS interface data between the MME and the MSC to obtain the IMSI and the PTMSI of the user equipment when the user equipment falls back from the LTE network to the 2G/3G network specifically includes:
the method comprises the steps of collecting SGS interface data between an MME and an MSC to acquire voice fallback service information of user equipment when the user equipment falls back to a 2G/3G network from an LTE network;
and extracting the IMSI and PTMSI of the user equipment from the voice fallback service information.
Preferably, the step of acquiring S1-MME interface data in the LTE network to acquire TMSI and PTMSI of the user equipment when the user equipment is switched from the 2G/3G network to the LTE network specifically includes:
collecting S1-MME interface data in an LTE network to acquire joint attachment receiving information of user equipment when the user equipment is converted from a 2G/3G network to the LTE network;
and extracting TMSI and PTMSI of the user equipment from the joint attachment receiving information.
The technical scheme adopted for solving the technical problem of the invention is an IMSI association backfill platform in an LTE network, which comprises the following steps:
the first acquisition unit is used for acquiring SGS interface data between the MME and the MSC so as to acquire IMSI and PTMSI of the user equipment when the user equipment falls back to the 2G/3G network from the LTE network;
the first mapping table association unit is used for establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the IMSI and the PTMSI acquired by the first acquisition unit;
a second obtaining unit, configured to collect S1-MME interface data in the LTE network, so as to obtain TMSI and PTMSI of the user equipment when the user equipment is switched from the 2G/3G network to the LTE network;
a second mapping table association unit, configured to establish a TMSI-PTMSI mapping table with a correspondence relationship between the TMSI and the PTMSI according to the TMSI and PTMSI acquired by the second acquisition unit;
the third mapping table association unit is used for establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI-PTMSI mapping table;
and the backfilling unit is used for acquiring the TMSI of the user equipment and backfilling the IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table.
Preferably, the first acquiring unit includes:
the first acquisition module is used for acquiring SGS interface data between the MME and the MSC so as to acquire voice fallback service information of the user equipment when the user equipment falls back to the 2G/3G network from the LTE network;
a first extracting module, configured to extract the IMSI and PTMSI of the user equipment from the voice fallback service information.
Preferably, the second acquiring unit includes:
a second obtaining module, configured to collect S1-MME interface data in an LTE network, so as to obtain joint attach reception information of a user equipment when the user equipment is switched from a 2G/3G network to the LTE network;
and the second extraction module is used for extracting the TMSI and the PTMSI of the user equipment from the joint attachment receiving information.
The invention has the following beneficial effects:
in the IMSI correlation backfilling method in the LTE network, as long as a user using the LTE network makes a call once, the IMSI correlation backfilling platform in the LTE network can obtain the IMSI of the user equipment used by the user, and continuously perfects the IMSI-TMSI mapping table according to the obtained TMSI and PTMSI, so that the IMSI of the user equipment can be backfilled according to the IMSI-TMSI mapping table after the user equipment used by the user is obtained by the IMSI correlation backfilling platform in the LTE network. Therefore, compared with the existing IMSI backfilling method, the IMSI correlation backfilling method in the LTE network not only improves the IMSI backfilling rate of the user equipment, but also can further strengthen the management of an operator to the user using the user equipment.
Drawings
Fig. 1 is a flowchart of an IMSI association backfill method in an LTE network according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram of an IMSI-associated backfill platform in an LTE network according to embodiment 2 of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, the present embodiment provides an IMSI (International Mobile Subscriber identity) associated backfill method in an LTE (Long Term Evolution) network, which mainly utilizes the characteristic that when a user (for short, LTE user) using the LTE network accesses a voice call service, the LTE network falls back to a 2G/3G network, and implements IMSI backfill by collecting voice fall back service information of SGS (Serving GateWay) interface data between an MME and an MSC and joint attachment reception information of S1-MME interface data in the LTE network. The following describes a method for backfilling IMSI association in an LTE network in this embodiment, which includes the following steps:
s101, SGS interface data between an MME and an MSC is collected to acquire IMSI and PTMSI of user equipment when the user equipment falls back to a 2G/3G network from an LTE network; and establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the obtained IMSI and PTMSI of the user equipment.
Specifically, in this embodiment, an IMSI associated backfill platform (abbreviated as IMSI associated backfill platform) in the LTE network is used as an execution subject. When an LTE user makes a call, the LTE network falls back to a 2G/3G network, at the moment, an IMSI association backfill platform acquires SGS interface data between an MME and an MSC to acquire voice fall back service information of user equipment used by the LTE user when the user equipment falls back from the LTE network to the 2G/3G network, and extracts IMSI and PTMSI (Packet temporal Mobile subscriber Identity) of the user equipment from the voice fall back service information so that after the IMSI association backfill platform acquires the IMSI and the PTMSI of the user equipment, an IMSI-PTMSI mapping table of a corresponding relation between the IMSI and the PTMSI according to the acquired IMSI and PTMSI of the user equipment is established; wherein, the MME is positioned in the LTE network, and the MSC is positioned in the 2G/3G network.
S102, collecting S1-MME interface data in the LTE network to acquire TMSI and PTMSI of the user equipment when the user equipment is converted from the 2G/3G network to the LTE network; and establishing a TMSI-PTMIS mapping table corresponding to the TMSI and the PTMIS according to the obtained TMSI and the PTMIS of the user equipment.
Specifically, after the call of the LTE user is finished, the network of the ue used by the LTE user is reconverted from the 2G/3G network to the LTE network, and at this time, the IMSI association backfill platform acquires S1-MME interface data in the LTE network to acquire joint attachment receiving information of the ue when the ue is converted from the 2G/3G network to the LTE network, and extracts TMSI (Temporary Mobile Subscriber Identity) and PTMSI of the ue from the joint attachment receiving information, so that after the IMSI association backfill platform acquires the TMSI and PTMSI of the ue, a TMSI-PTMSI mapping table of a corresponding relationship between the two is established according to the acquired TMSI and PTMSI of the ue.
S103, establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI mapping table.
Specifically, the IMSI-related backfill platform establishes an IMSI-TMSI mapping table corresponding to the IMSI and the TMSI according to the IMSI-PTMSI mapping table established in step S101 and the TMSI-PTMSI mapping table established in step S102.
S104, obtaining the TMSI of the user equipment, and backfilling the IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table.
The IMSI-related backfill platform acquires the TMSI of the user equipment used by the LTE user, and backfills the IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table established in step S103.
Therefore, in the IMSI association backfill method of this embodiment, as long as an LTE user makes a call once, the IMSI association backfill platform can acquire the IMSI of the user equipment used by the LTE user, and continuously refine the IMSI-TMSI mapping table according to the acquired TMSI and PTMSI, so that after the IMSI association backfill platform acquires the TMSI of the user equipment used by the LTE user, the IMSI of the user equipment can be refilled according to the IMSI-TMSI mapping table in this embodiment. Therefore, compared with the existing IMSI backfill method, the IMSI association backfill method provided by the embodiment not only improves the IMSI backfill rate of the user equipment, but also can further enhance the management of an operator on an LTE user using the user equipment.
Example 2:
as shown in fig. 2, this embodiment provides an IMSI association backfill platform in an LTE network, which can backfill an IMSI of a user equipment by using the IMSI association backfill method in the LTE network in embodiment 1, so that an operator can identify and distinguish a user using the user equipment by using the IMSI of the user equipment, thereby implementing management of the user. The IMSI correlation backfill platform in the LTE network comprises: the mapping table comprises a first obtaining unit, a first mapping table association unit, a second obtaining unit, a second mapping table association unit, a third mapping table association unit and a backfill unit.
Specifically, the first obtaining unit is configured to collect SGS interface data between the MME and the MSC, so as to obtain an IMSI and a PTMSI of the user equipment when the user equipment falls back from the LTE network to the 2G/3G network; the first mapping table association unit is used for establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the IMSI and the PTMSI acquired by the first acquisition unit; the second acquisition unit is used for acquiring S1-MME interface data in the LTE network so as to acquire TMSI and PTMSI of the user equipment when the user equipment is converted from the 2G/3G network to the LTE network; the second mapping table association unit is used for establishing a TMSI-PTMSI mapping table corresponding to the TMSI and the PTMSI acquired by the second acquisition unit; the third mapping table association unit is used for establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI-PTMSI mapping table; the backfill unit is used for acquiring the TMSI of the user equipment and backfilling the IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table.
Wherein, the first acquisition unit includes: the device comprises a first acquisition module and a first extraction module. The first acquisition module is used for acquiring SGS interface data between the MME and the MSC so as to acquire voice fallback service information of the user equipment when the user equipment falls back to the 2G/3G network from the LTE network; the first extraction module is used for extracting IMSI and PTMSI of the user equipment from the voice fallback service information.
Wherein the second acquiring unit includes: the second acquisition module and the second extraction module. The second acquisition module is used for acquiring S1-MME interface data in the LTE network so as to acquire the joint attachment receiving information of the user equipment when the user equipment is converted from the 2G/3G network to the LTE network; the second extracting module is used for extracting TMSI and PTMSI of the user equipment from the joint attachment receiving information.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (6)
1. An IMSI correlation backfill method in an LTE network is characterized by comprising the following steps:
collecting SGS interface data between MME and MSC to obtain IMSI and PTMSI of user equipment when the user equipment falls back to 2G/3G network from LTE network; the IMSI and PTMSI of the user equipment are information obtained from the voice fallback service information of the user equipment when the user equipment falls back from an LTE network to a 2G/3G network;
establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the obtained IMSI and PTMSI of the user equipment;
collecting S1-MME interface data in an LTE network to acquire TMSI and PTMSI of user equipment when the user equipment is converted from a 2G/3G network to the LTE network; wherein, TMSI and PTMSI of the user equipment are information obtained from the joint attachment receiving information of the user equipment when the user equipment is switched from 2G/3G network to LTE network;
establishing a TMSI-PTMSI mapping table corresponding to the TMSI and the PTMSI of the user equipment according to the obtained TMSI and the PTMSI;
establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI mapping table;
obtaining TMSI of user equipment, and backfilling IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table.
2. The method of claim 1, wherein the step of collecting the SGS interface data between the MME and the MSC to obtain the IMSI and PTMSI of the ue when the ue falls back from the LTE network to the 2G/3G network specifically comprises:
the method comprises the steps of collecting SGS interface data between an MME and an MSC to acquire voice fallback service information of user equipment when the user equipment falls back to a 2G/3G network from an LTE network;
and extracting the IMSI and PTMSI of the user equipment from the voice fallback service information.
3. The IMSI association backfill method according to claim 1, wherein the step of collecting S1-MME interface data in the LTE network to obtain TMSI and PTMSI of the ue when the ue switches from the 2G/3G network to the LTE network specifically comprises:
collecting S1-MME interface data in an LTE network to acquire joint attachment receiving information of user equipment when the user equipment is converted from a 2G/3G network to the LTE network;
and extracting TMSI and PTMSI of the user equipment from the joint attachment receiving information.
4. An IMSI association backfill platform in an LTE network, comprising:
the first acquisition unit is used for acquiring SGS interface data between the MME and the MSC so as to acquire IMSI and PTMSI of the user equipment when the user equipment falls back to the 2G/3G network from the LTE network; the IMSI and PTMSI of the user equipment are information obtained by the first obtaining unit from the voice fallback service information of the user equipment when the user equipment falls back from an LTE network to a 2G/3G network;
the first mapping table association unit is used for establishing an IMSI-PTMSI mapping table corresponding to the IMSI and the PTMSI according to the IMSI and the PTMSI acquired by the first acquisition unit;
a second obtaining unit, configured to collect S1-MME interface data in the LTE network, so as to obtain TMSI and PTMSI of the user equipment when the user equipment is switched from the 2G/3G network to the LTE network; wherein, the TMSI and PTMSI of the ue are information obtained by the second obtaining unit from the information received by the ue in the joint attach mode when the ue switches from the 2G/3G network to the LTE network;
a second mapping table association unit, configured to establish a TMSI-PTMSI mapping table with a correspondence relationship between the TMSI and the PTMSI according to the TMSI and PTMSI acquired by the second acquisition unit;
the third mapping table association unit is used for establishing an IMSI-TMSI mapping table of the corresponding relation between the IMSI and the TMSI according to the IMSI-PTMSI mapping table and the TMSI-PTMSI mapping table;
and the backfilling unit is used for acquiring the TMSI of the user equipment and backfilling the IMSI corresponding to the TMSI according to the IMSI-TMSI mapping table.
5. An IMSI association backfill platform according to claim 4, characterized in that said first obtaining unit comprises:
the first acquisition module is used for acquiring SGS interface data between the MME and the MSC so as to acquire voice fallback service information of the user equipment when the user equipment falls back to the 2G/3G network from the LTE network;
a first extracting module, configured to extract the IMSI and PTMSI of the user equipment from the voice fallback service information.
6. An IMSI association backfill platform according to claim 4, characterized in that said second obtaining unit comprises:
a second obtaining module, configured to collect S1-MME interface data in an LTE network, so as to obtain joint attach reception information of a user equipment when the user equipment is switched from a 2G/3G network to the LTE network;
and the second extraction module is used for extracting the TMSI and the PTMSI of the user equipment from the joint attachment receiving information.
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