CN111263355A - GUTI distribution method and device - Google Patents
GUTI distribution method and device Download PDFInfo
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- CN111263355A CN111263355A CN201811464876.6A CN201811464876A CN111263355A CN 111263355 A CN111263355 A CN 111263355A CN 201811464876 A CN201811464876 A CN 201811464876A CN 111263355 A CN111263355 A CN 111263355A
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Abstract
The embodiment of the invention provides a GUTI allocation method and device. The method comprises the following steps: when receiving a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier (GUTI) of the terminal, acquiring preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs; determining parameter information of a current target MME of the terminal; and authenticating the parameter information of the original MME according to the parameter information of the target MME, and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed. The embodiment of the invention solves the problem that the GUTI reallocation is easy to happen due to the GUTI allocation mode in the prior art.
Description
Technical Field
The embodiment of the invention relates to the technical field of mobile communication, in particular to a GUTI allocation method and device.
Background
With the development of mobile communication technology, Long Term Evolution (LTE) of universal mobile telecommunications technology has occupied a large amount of user market share with its superior characteristics. In LTE, a Globally Unique Temporary terminal identifier (GUTI) is a Unique Temporary identifier provided for a user in a System Architecture Evolution (SAE) system. The GUTI provides a definite identity for a User Equipment (UE) while not exposing a permanent identity of the UE. When signaling interaction is carried out between a network and UE, the GUTI is used for identifying the user, so that the user secret can be prevented from being leaked due to the fact that the International Mobile Subscriber Identity (IMSI) is frequently transmitted through a wireless interface.
Specifically, a GUTI includes two parts: one part is Globally Unique MME identifier (GUMMEI) for uniquely identifying a Mobility Management Entity (MME) that allocates a GUTI; the other part is SAE Temporary Mobile subscriber identity (SAE-temporal Mobile subscriber identity, S-MTMSI) for identifying the UE under the MME. The S-MTMSI still further includes an MME number (MME Code, MMEC) and an MME Temporary Mobile Subscriber Identity (MME-temporal Mobile Subscriber Identity, M-TMSI). Wherein, GUMMEI and MMEC are determined by system configuration and are not changed; and the M-TMSI is generated by the MME, registered by each terminal user and generated and allocated by the MME.
In an attach flow, a service request flow, a Tracking Area Update (TAU) flow, a GUTI re-allocation and a detach flow, a core network or UE may search for a user through the GUTI, and the allocation of the GUTI directly affects whether the user service is normally performed. However, if the MME device is restarted or the system is powered off, the core network cannot notify the UE in time, and at this time, the UE still stores the previously allocated GUTI, and the core network does not have the previous user information any more, which results in the situation that the GUTI is not synchronized. And when the core network operates normally and a new user registers, the previously allocated original GUTI is probably occupied by other UE, and when the original GUTI receives the service again, the connected user is the new UE, so that the service cannot be normally performed by the original UE for a period of time.
In addition, the other special identification S-TMSI can be used for paging the user in the signaling process, and the user can also use the S-TMSI to identify the user in the service request. In practical network deployments, it may be necessary to map the routing domain identity RAI and the mobile subscriber packet P-TMSI (i.e., RAI + P-TMSI) to each other in GUTI and GERAN/UTRAN systems.
In the GUTI composition, GUMMTI and MMEC are determined by equipment networking configuration and generally cannot be changed; the allocation of M-TMSI also directly affects the worth of GUTI, and therefore, the M-TMSI value will affect the user's choice for the network side device. In existing networks, the M-TMSI consists of power-on sequence number + sequential number; after the network side equipment is restarted or has power failure, the M-MTSI allocated to the user is probably repeated with the original user of the M-MTSI.
Specifically, according to the above allocation method, the UE1 is attached and allocated to a GUTI, and after a period of time, the network side device is powered off, and the MME device is restarted; and the UE1 cannot know that the core network releases the user in a short time, and when the network side device is restarted quickly and operates normally, the GUTI is allocated to the newly accessed user UE 2. Thus, when the UE1 is attached again by the GUTI, the MME finds a new user instance according to the GUTI carried by the UE, and considers that the user is the UE2, the MME reattaches the UE2, and identifies the UE1 and the UE2 as the same user, which may cause problems of IP duplication, service interference, inconsistency between network side and terminal side resources, and the like.
The above situation may also occur in the TAU flow, the service request, the detach flow, the GUTI re-allocation process, and the inter-working flow, so that the GUTI re-allocation is easily caused by the GUTI allocation manner in the prior art.
Disclosure of Invention
The embodiment of the invention provides a GUTI allocation method and a GUTI allocation device, which are used for solving the problem that in the prior art, GUTI reallocation is easily caused by a GUTI allocation mode.
In one aspect, an embodiment of the present invention provides a GUTI allocation method, where the method includes:
when receiving a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier (GUTI) of the terminal, acquiring preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs;
determining parameter information of a current target MME of the terminal;
and authenticating the parameter information of the original MME according to the parameter information of the target MME, and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
On the other hand, an embodiment of the present invention further provides a GUTI allocating apparatus, where the apparatus includes:
the system comprises a receiving module, a receiving module and a sending module, wherein the receiving module is used for acquiring the preset identification information of a globally unique temporary terminal identifier GUTI when receiving the preset signaling which is sent by a terminal and carries the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs;
a determining module, configured to determine parameter information of a current target MME of the terminal;
and the authentication module is used for authenticating the parameter information of the original MME according to the parameter information of the target MME and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
In another aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, a bus, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the steps in the GUTI allocation method.
In still another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the above GUTI allocation method.
According to the GUTI distribution method and device provided by the embodiment of the invention, when a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier GUTI of the terminal is received, the preset identification information of the GUTI is obtained; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs; determining the parameter information of the current target MME of the terminal; and finally, authenticating the parameter information of the original MME according to the parameter information of the target MME, and when the authentication result indicates that the authentication is not passed, namely the GUTI is not in the range of the GUTI borne by the target MME, sending a rejection message to the UE through MME equipment to inform the UE that the connection cannot be performed, allocating a new GUTI for the terminal, if so, allocating the new GUTI for the UE, so as to avoid the problems of IP repetition, service mutual interference, inconsistency of resources of a network side and a terminal side and the like caused by repeated allocation of the GUTI, realize that in the signaling process of LTE, the user can be accurately searched in the MME through the GUTI, and ensure that the services of all online users are normally performed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a GUTI allocation method according to an embodiment of the present invention;
FIG. 2 is an exemplary GUTI diagram of an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a GUTI allocation apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "an embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrase "in an embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.
Fig. 1 shows a flowchart of a GUTI allocation method according to an embodiment of the present invention.
As shown in fig. 1, the GUTI allocation method provided in the embodiment of the present invention specifically includes the following steps:
In the procedures, when the UE performs signaling interaction with the network side (core network side), the GUTI is used as a unique identification number to identify the UE, so as to avoid frequently transmitting the IMSI on the radio interface.
Optionally, the method provided in the embodiment of the present invention is applied to a network side device.
When receiving a preset signaling sent by UE, network side equipment extracts preset identification information of a GUTI in the preset signaling, wherein the preset identification information at least carries parameter information of an original MME; the parameter information has uniqueness, which indicates the corresponding relationship between the GUTI of the UE and the MME to which the UE belongs.
And 102, determining the parameter information of the current target MME of the terminal.
When receiving a preset signaling, the network side device determines a target MME to be connected to the terminal currently, and acquires parameter information of the target MME. The parameter information of the target MME includes all GUTIs currently carried by the target MME.
And 103, authenticating the parameter information of the original MME according to the parameter information of the target MME, and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
The method includes authenticating parameter information of an original MME according to parameter information of a target MME, namely authenticating a GUTI of UE according to the parameter information of the target MME, judging whether the GUTI of the UE is within a GUTI range currently carried by the target MME, if not, possibly generating the condition of power failure of network side equipment or restarting of MME equipment, and in order to avoid the GUTI being repeatedly distributed, needing to distribute a new MME for the UE.
Specifically, in the process of signaling interaction between the UE and the MME and between the UE and the network side device in the GUTI manner, if the network side device is powered off or the MME device is restarted, the network side device may release the UE, and the MME device may reallocate new GUTI for all terminal users thereof, so that the MME device may have a new GUTI range.
And the UE can not know that the UE is released in a short time, the GUTI (original GUTI) is still used for sending a signaling message to the MME and the network side equipment, at the moment, the network side equipment authenticates the parameter information in the signaling message of the UE according to the parameter information of the target MME of the UE, if the authentication result shows that the GUTI is not in the range of the GUTI borne by the target MME, the MME equipment is required to send a rejection message to the UE to inform that the UE can not be connected, and a new GUTI is distributed to the UE.
In the embodiment of the invention, when receiving a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier (GUTI) of the terminal, acquiring preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs; determining the parameter information of the current target MME of the terminal; and finally, authenticating the parameter information of the original MME according to the parameter information of the target MME, and when the authentication result indicates that the authentication is not passed, namely the GUTI is not in the range of the GUTI borne by the target MME, sending a rejection message to the UE through MME equipment to inform the UE that the connection cannot be performed, allocating a new GUTI for the terminal, if so, allocating the new GUTI for the UE, so as to avoid the problems of IP repetition, service mutual interference, inconsistency of resources of a network side and a terminal side and the like caused by repeated allocation of the GUTI, realize that in the signaling process of LTE, the user can be accurately searched in the MME through the GUTI, and ensure that the services of all online users are normally performed. The embodiment of the invention solves the problem that the GUTI reallocation is easy to happen due to the GUTI allocation mode in the prior art.
Optionally, in the foregoing embodiment of the present invention, the parameter information at least includes a number of times of restarting a board on which the MME is located and/or a number of times of restarting a process of the MME.
The parameter information of the original MME carries the single board restart times of the original MME and/or the process restart times of the original MME; the parameter information of the target MME carries the single board restart times of the target MME and/or the process restart times of the target MME.
As a first example, referring to fig. 2, fig. 2 shows a schematic diagram of a GUTI, wherein the GUTI includes a GUMMEI and a S-MTMSI, the GUMMEI is used to uniquely identify the MME that allocates the GUTI; the S-MTMSI is used to identify the UE under the MME.
The GUMMEI further includes a Mobile Country Code (MCC), a Mobile Network Code (MNC), an MME Group Identifier (MMEGI), and an MMEC.
Specifically, the resources of the MCC are uniformly distributed and managed by the International Telecommunications Union (ITU), uniquely identifying the country to which the mobile subscriber belongs, and having 3 digits (binary); MNC has 2-3 digits.
MMEGI consists of 16 digits (bits), which are unique within a Public Land Mobile Network (PLMN).
The MMEC consists of 8-bit digits.
The S-MTMSI still further includes MMEC and M-TMSI. Wherein, GUMMEI and MMEC are determined by system configuration and are not changed; and the M-TMSI is generated by the MME, each terminal user registers, and the M-TMSI is generated and allocated by the MME, wherein the M-TMSI consists of 32-bit numbers.
In the embodiment of the invention, the single board restart times of a single board where an MME is located and/or the process restart times of the MME are added in the GUTI parameter information; the single board restart times of the single board where the MME is located are used for recording the total restart times of the single board where the MME is located, and the process restart times of the MME are used for recording the total restart times of the process of the MME; and authenticating the parameter information of the original MME of the UE based on the single board restart times and/or the process restart times of the MME, namely authenticating the GUTI of the UE to ensure that the single board restart times and/or the process restart times of the original MME recorded in the GUTI of the UE are strictly consistent with the single board restart times and/or the process restart times of the target MME, timely identifying the inconsistency, sending a rejection message to the UE through MME equipment to inform that the UE cannot be connected, and allocating a new GUTI to the UE.
Optionally, as an implementation manner, the number of board reboots and/or the number of process reboots in fig. 2 are added to the M-TMSI, the number of board reboots may occupy 6 digits, and the number of process reboots may occupy 3 digits.
Further, in the foregoing embodiment of the present invention, the parameter information includes a power-on sequence number of the board where the MME is located and/or a sequence number of the GUTI.
As a second example, still referring to fig. 2, a power-on serial number of a board and/or a serial number of the GUTI may also be added to the M-TMSI; the power-on serial number of the single board occupies 6 digits and is used for indicating the total power-on times of the single board; the sequence number of the GUTI occupies 17 digits and is used for indicating the sequence of the GUTI in the GUTI range of the target MME, and under the allocation mode, the number of the GUTI can reach 217131072, that is, the number of bearable UEs can reach 131072.
To this end, the format of the M-TMSI is as follows:
the M-TMSI is equal to 6bit power-on sequence number +6bit single board restart times +3bit process restart times +17bit MME self-allocated GUTI sequence number;
if there are 2 users, user 1 is registered in the MME, and the MME allocates M-TMSI for it as follows:
111111 (power-on serial number) +0 (board restart times) +0 (process restart times) +00000000000000001 (sequential number), that is, "1111110000000000000000001";
when the MME process is restarted and the user 2 is attached, the newly allocated M-TMSI of the MME is as follows:
111111 (power-on serial number) +0 (single board restart times) +1 (process restart times) +00000000000000001 (sequential number), that is, "1111110100000000000000001";
thus, for example, when the process is restarted, the M-TMSI of user 1 is different from that of any user 2. After the MME process is restarted, when the user 1 uses the original GUTI as a service, because the MME process is restarted, the original GUTI of the user 1 does not exist in the MME, and the MME notifies the user 1 through a cause value 0x09(E identity registration be derived by the network), so that the user 1 executes a reattachment process and registers again.
According to the allocation mode in the embodiment of the invention, the GUTI repeated allocation problem can be avoided. The restarting situation of the single board is similar, and the embodiment of the invention is not described again. And for a plurality of Packet Core (EPC) processes in the scene of a single board, after the single board is restarted, the GUTI is at bit +1 of the single board restart, the process is restarted, and the GUTI can also be at bit +1 of the process restart, so that the uniqueness of the GUTI is completely ensured after the equipment is abnormal.
It is understood that the parameter information may be carried in the MME temporary Mobile subscriber identity M-TMSI, the System architecture evolution SAE temporary Mobile subscriber identity S-MTMSI or the packet temporary Mobile identity P-TMSI of the new GUTI.
Optionally, in the foregoing embodiment of the present invention, the step of allocating a new GUTI to the terminal includes:
and allocating a new GUTI to the terminal, wherein the new GUTI carries the parameter information of the target MME.
And after determining that the original GUTI of the terminal is not in the GUTI range of the target MME, allocating a new GUTI for the UE, wherein the new GUTI carries the parameter information of the target MME.
Optionally, the parameter information of the target MME includes a single board restart time of a single board where the target MME is located and/or a process restart time of the target MME, and may further include a power-on sequence number and/or a sequence number of the GUTI; wherein, the sequence number of the GUTI needs to be updated.
Optionally, in the foregoing embodiment of the present invention, the authenticating the parameter information of the original MME according to the parameter information of the target MME includes:
if the parameter information of the original MME is consistent with the parameter information of the target MME, determining that the authentication result is passed;
and if the parameter information of the original MME is inconsistent with the parameter information of the target MME, determining that the authentication result is not passed.
If the parameter information comprises a content, authenticating the content; and if the plurality of items are included, performing authentication respectively.
Optionally, in the above embodiment of the present invention, after the step of authenticating the parameter information of the original MME according to the parameter information of the target MME, the method further includes:
and if the authentication result is that the authentication is passed, using the GUTI as the GUTI of the terminal.
If the authentication result is that the authentication is passed, it indicates that the original GUTI is within the GUTI range of the target MME, which may be a case that the target MME is not subjected to single-board restart or process restart, and at this time, it is not necessary to allocate a new GUTI to the UE.
In the above embodiment of the present invention, in the LTE device, it is ensured that, in any case of the MME, the GUTI can be guaranteed to be the only identifier to the maximum extent, it is ensured that the subsequent process can accurately identify the UE, and normal operation of the service is guaranteed; the user resource is prevented from being suspended, and the user perception is improved.
In the embodiment of the invention, when receiving a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier (GUTI) of the terminal, acquiring preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs; determining the parameter information of the current target MME of the terminal; and finally, authenticating the parameter information of the original MME according to the parameter information of the target MME, and when the authentication result indicates that the authentication is not passed, namely the GUTI is not in the range of the GUTI borne by the target MME, sending a rejection message to the UE through MME equipment to inform the UE that the connection cannot be performed, allocating a new GUTI for the terminal, if so, allocating the new GUTI for the UE, so as to avoid the problems of IP repetition, service mutual interference, inconsistency of resources of a network side and a terminal side and the like caused by repeated allocation of the GUTI, realize that in the signaling process of LTE, the user can be accurately searched in the MME through the GUTI, and ensure that the services of all online users are normally performed.
The GUTI allocation method according to the embodiment of the present invention is described above, and the GUTI allocation apparatus according to the embodiment of the present invention is described below with reference to the accompanying drawings.
Referring to fig. 3, an embodiment of the present invention provides a GUTI allocating apparatus, where the apparatus includes:
a receiving module 301, configured to obtain preset identification information of a globally unique temporary terminal identifier GUTI of a terminal when receiving a preset signaling that is sent by the terminal and carries the GUTI; and the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs.
In the procedures, when the UE performs signaling interaction with the network side (core network side), the GUTI is used as a unique identification number to identify the UE, so as to avoid frequently transmitting the IMSI on the radio interface.
Optionally, the method provided in the embodiment of the present invention is applied to a network side device.
When receiving a preset signaling sent by UE, network side equipment extracts preset identification information of a GUTI in the preset signaling, wherein the preset identification information at least carries parameter information of an original MME; the parameter information has uniqueness, which indicates the corresponding relationship between the GUTI of the UE and the MME to which the UE belongs.
A determining module 302, configured to determine parameter information of a current target MME of the terminal.
When receiving a preset signaling, the network side device determines a target MME to be connected to the terminal currently, and acquires parameter information of the target MME. The parameter information of the target MME includes all GUTIs currently carried by the target MME.
And the authentication module 303 is configured to authenticate the parameter information of the original MME according to the parameter information of the target MME, and execute a preset GUTI allocation procedure according to the authentication result to allocate a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
The method includes authenticating parameter information of an original MME according to parameter information of a target MME, namely authenticating a GUTI of UE according to the parameter information of the target MME, judging whether the GUTI of the UE is within a GUTI range currently carried by the target MME, if not, possibly generating the condition of power failure of network side equipment or restarting of MME equipment, and in order to avoid the GUTI being repeatedly distributed, needing to distribute a new MME for the UE.
Specifically, in the process of signaling interaction between the UE and the MME and between the UE and the network side device in the GUTI manner, if the network side device is powered off or the MME device is restarted, the network side device may release the UE, and the MME device may reallocate new GUTI for all terminal users thereof, so that the MME device may have a new GUTI range.
And the UE can not know that the UE is released in a short time, the GUTI (original GUTI) is still used for sending a signaling message to the MME and the network side equipment, at the moment, the network side equipment authenticates the parameter information in the signaling message of the UE according to the parameter information of the target MME of the UE, if the authentication result shows that the GUTI is not in the range of the GUTI borne by the target MME, the MME equipment is required to send a rejection message to the UE to inform that the UE can not be connected, and a new GUTI is distributed to the UE.
Optionally, in the embodiment of the present invention, the parameter information at least includes a number of times of restarting a board on which the MME is located and/or a number of times of restarting a process of the MME.
Optionally, in this embodiment of the present invention, the authentication module 303 includes:
and the allocation submodule is used for allocating a new GUTI for the terminal, wherein the new GUTI carries the parameter information of the target MME.
Optionally, in the embodiment of the present invention, the parameter information is carried in an MME temporary mobile subscriber identity M-TMSI, a system architecture evolution SAE temporary mobile subscriber identity S-MTMSI, or a packet temporary mobile identity P-TMSI of the new GUTI.
Optionally, in this embodiment of the present invention, the parameter information includes a power-on sequence number of a board where the MME is located and/or a sequence number of the GUTI.
Optionally, in this embodiment of the present invention, the authentication module 303 is configured to:
if the parameter information of the original MME is consistent with the parameter information of the target MME, determining that the authentication result is passed;
and if the parameter information of the original MME is inconsistent with the parameter information of the target MME, determining that the authentication result is not passed.
In the above embodiment of the present invention, when receiving a preset signaling carrying a globally unique temporary terminal identifier GUTI of a terminal sent by the terminal, a receiving module 301 obtains preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs; the determining module 302 determines the parameter information of the current target MME of the terminal; the authentication module 303 authenticates the parameter information of the original MME according to the parameter information of the target MME, and when the authentication result indicates that the authentication is not passed, that is, the GUTI is not within the range of the GUTI carried by the target MME, sends a reject message to the UE through the MME device, informs that the UE cannot connect, allocates a new GUTI to the terminal, and if so, allocates a new GUTI to the UE, thereby avoiding problems of IP duplication, service mutual interference, resource inconsistency between the network side and the terminal side, and the like, which are caused by repeated allocation of GUTI, and realizing that in the signaling process of LTE, the user can be accurately found through the GUTI in the MME, and ensuring that the services of all online users are normally performed.
Fig. 4 is a schematic structural diagram of an electronic device according to yet another embodiment of the present invention.
As shown in fig. 4, the electronic device may include: a processor (processor)410, a communication Interface 420, a memory (memory)430 and a communication bus 440, wherein the processor 410, the communication Interface 420 and the memory 430 are communicated with each other via the communication bus 440. The processor 410 may call logic instructions in the memory 430 to perform the following method:
when receiving a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier (GUTI) of the terminal, acquiring preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs;
determining parameter information of a current target MME of the terminal;
and authenticating the parameter information of the original MME according to the parameter information of the target MME, and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
In addition, the logic instructions in the memory 430 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products.
In another embodiment of the present invention, a non-transitory computer-readable storage medium is provided, where a computer program is stored on the non-transitory computer-readable storage medium, and when the computer program is executed by a processor, the steps in the method provided in the foregoing embodiment of the present invention are implemented, and details of the implementation are not repeated.
Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (14)
1. A GUTI allocation method, the method comprising:
when receiving a preset signaling which is sent by a terminal and carries a globally unique temporary terminal identifier (GUTI) of the terminal, acquiring preset identification information of the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs;
determining parameter information of a current target MME of the terminal;
and authenticating the parameter information of the original MME according to the parameter information of the target MME, and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
2. The method according to claim 1, wherein the parameter information at least includes a number of single-board reboots of a single board where the MME is located and/or a number of process reboots of the MME.
3. The method according to claim 2, wherein the step of allocating the new GUTI to the terminal comprises:
and allocating a new GUTI to the terminal, wherein the new GUTI carries the parameter information of the target MME.
4. The method of claim 3, wherein the parameter information is carried in an MME temporary mobile subscriber identity (M-TMSI), a System Architecture Evolution (SAE) temporary mobile subscriber identity (S-MTMSI), or a packet temporary mobile identity (P-TMSI) of the new GUTI.
5. The method according to claim 1, wherein the parameter information includes a power-on serial number of a board where an MME is located and/or a serial number of the GUTI.
6. The method of claim 1, wherein the step of authenticating the parameter information of the old MME according to the parameter information of the target MME comprises:
if the parameter information of the original MME is consistent with the parameter information of the target MME, determining that the authentication result is passed;
and if the parameter information of the original MME is inconsistent with the parameter information of the target MME, determining that the authentication result is not passed.
7. A GUTI allocation apparatus, the apparatus comprising:
the system comprises a receiving module, a receiving module and a sending module, wherein the receiving module is used for acquiring the preset identification information of a globally unique temporary terminal identifier GUTI when receiving the preset signaling which is sent by a terminal and carries the GUTI; the preset identification information at least carries parameter information of an original mobility management entity MME to which the GUTI belongs;
a determining module, configured to determine parameter information of a current target MME of the terminal;
and the authentication module is used for authenticating the parameter information of the original MME according to the parameter information of the target MME and allocating a new GUTI to the terminal when the authentication result indicates that the authentication is failed.
8. The apparatus according to claim 7, wherein the parameter information at least includes a number of single-board reboots of a single board where the MME is located and/or a number of process reboots of the MME.
9. The apparatus of claim 8, wherein the authentication module comprises:
and the allocation submodule is used for allocating a new GUTI for the terminal, wherein the new GUTI carries the parameter information of the target MME.
10. The apparatus of claim 9, wherein the parameter information is carried in an MME temporary mobile subscriber identity, M-TMSI, a system architecture evolution, SAE, temporary mobile subscriber identity, S-MTMSI, or a packet temporary mobile identity, P-TMSI, of the new GUTI.
11. The apparatus according to claim 7, wherein the parameter information includes a power-on serial number of a board where an MME is located and/or a serial number of the GUTI.
12. The apparatus of claim 7, wherein the authentication module is configured to:
if the parameter information of the original MME is consistent with the parameter information of the target MME, determining that the authentication result is passed;
and if the parameter information of the original MME is inconsistent with the parameter information of the target MME, determining that the authentication result is not passed.
13. An electronic device comprising a memory, a processor, a bus, and a computer program stored on the memory and executable on the processor, the processor implementing the steps in the GUTI allocation method of any of claims 1 to 6 when executing the program.
14. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that: the program when executed by a processor implements the steps in the GUTI allocation method according to any of claims 1 to 6.
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