CN113612814B - Session information screening method, device, terminal and storage medium - Google Patents
Session information screening method, device, terminal and storage medium Download PDFInfo
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- CN113612814B CN113612814B CN202110722272.2A CN202110722272A CN113612814B CN 113612814 B CN113612814 B CN 113612814B CN 202110722272 A CN202110722272 A CN 202110722272A CN 113612814 B CN113612814 B CN 113612814B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/18—Service support devices; Network management devices
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Abstract
The invention discloses a screening method, a screening device, a screening terminal and a screening storage medium for session information, wherein whether a session management functional unit is a standby session management functional unit or not is judged according to an update message sent by the session management functional unit; when the session management functional unit is a standby session management functional unit, acquiring history session information corresponding to the main session management functional unit, wherein the main session management functional unit corresponds to the standby session management unit; screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit. The method solves the problem that after the active and standby protection mechanisms of the session management functional unit are started, the standby session management functional unit is inconsistent with the user session information on the user port functional unit, so that partial functions of the user port functional unit cannot be realized.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a method, an apparatus, a terminal, and a storage medium for screening session information.
Background
The system architecture main User Port Function (UPF) of the 5g mobile network is mainly used for receiving a message forwarding control protocol message (PFCP message) sent by the Session Management Function (SMF) to create user session information. However, since the session management functional unit has a primary and a secondary protection mechanism, that is, when the primary session management functional unit fails, the standby session management functional unit may timely take over the primary session management functional unit to execute the session management function, and when the standby session management functional unit specifically executes the session management function, the standby session management functional unit may perform service using the user session information that is synchronized with the primary session management functional unit before. However, due to the fact that incomplete synchronization may occur between the active session management functional unit and the standby session management functional unit, after the active and standby protection mechanisms are started, the standby session management functional unit is inconsistent with user session information on the user port functional unit, so that abnormal session information which does not exist in part of the standby session management functional unit exists in the user port functional unit, and part of functions of the user port functional unit may not be realized due to the abnormal session information.
Accordingly, there is a need for improvement and development in the art.
Disclosure of Invention
The invention aims to solve the technical problems that the prior art has the defects, provides a screening method, a screening device, a screening terminal and a screening storage medium for session information, and aims to solve the problems that after a main and standby protection mechanism of a session management function unit is started, the standby session management function unit is inconsistent with user session information on a user port function unit, namely, abnormal session information which is not existed in part of standby session management function units exists in the user port function unit, so that part of functions of the user port function unit cannot be realized.
The technical scheme adopted by the invention for solving the problems is as follows:
in a first aspect, an embodiment of the present invention provides a method for screening session information, where the method is applied to a user port function unit, and the method includes:
acquiring an update message sent by a session management functional unit, and judging whether the session management functional unit is a standby session management functional unit according to the update message;
at the moment, acquiring historical session information corresponding to a main session management functional unit, wherein the main session management functional unit corresponds to the standby session management unit;
screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit.
In one embodiment, the determining whether the session management function unit is a standby session management function unit according to the update message includes:
acquiring the function information of the session management function unit carried in the update message;
and determining whether the session management function unit is a standby session management function unit according to the function information.
In one embodiment, the determining whether the session management function unit is a standby session management function unit according to the function information includes:
acquiring original function information corresponding to each of a plurality of session management function units connected with the user port function unit;
matching the function information with original function information corresponding to each of the session management function units;
and when the matching is successful, determining the session management function unit as the standby session management function unit.
In one embodiment, the filtering the historical session information to obtain abnormal session information in the historical session information includes:
each piece of session information in the history session information is acquired, and a corresponding request message is generated according to the session information;
determining a storage state of the session information in the standby session management function unit according to the request message;
and when the storage state is not stored, determining that the session information is the abnormal session information.
In one embodiment, the determining, according to the request message, a storage state of the session information in the standby session management function unit includes:
sending the request message to the standby session management function unit;
acquiring a response message generated by the standby session management functional unit based on the request message;
and when the response message is query failure, determining that the storage state of the session information is not stored.
In one embodiment, the method further comprises:
generating a deleting instruction according to the abnormal session information;
and executing deleting operation on the abnormal session information according to the deleting instruction.
In one embodiment, the method further comprises:
and generating a reminding message according to the abnormal session information, wherein the reminding message is used for prompting and checking the synchronous state between the main session management function unit and the standby session management function unit.
In a second aspect, an embodiment of the present invention further provides a screening apparatus for session information, where the apparatus includes:
the determining module is used for acquiring the update message sent by the session management functional unit and judging whether the session management functional unit is a standby session management functional unit according to the update message;
the acquisition module is used for acquiring historical session information corresponding to a main session management function unit when the session management function unit is the standby session management function unit, wherein the main session management function unit corresponds to the standby session management unit;
and the screening module is used for screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit.
In a third aspect, an embodiment of the present invention further provides a terminal, where the terminal includes a memory and one or more processors; the memory stores one or more programs; the program comprising instructions for performing a method of screening session information as described in any one of the above; the processor is configured to execute the program.
In a fourth aspect, an embodiment of the present invention further provides a computer readable storage medium, where a plurality of instructions are stored, where the instructions are loaded and executed by a processor to implement the steps of any one of the above-mentioned session information screening methods.
The invention has the beneficial effects that: according to the embodiment of the invention, whether the session management functional unit is a standby session management functional unit is judged according to the update message by acquiring the update message sent by the session management functional unit; when the session management functional unit is the standby session management functional unit, acquiring history session information corresponding to a main session management functional unit, wherein the main session management functional unit corresponds to the standby session management unit; screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit. The method solves the problem that after the active-standby protection mechanism of the session management functional unit is started, the standby session management functional unit is inconsistent with the user session information on the user port functional unit, namely, the user port functional unit has abnormal session information which does not exist in part of the standby session management functional unit, so that part of functions of the user port functional unit cannot be realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
Fig. 1 is a flow chart of a method for screening session information according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of interaction between a user port functional unit and a session management functional unit according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of an internal module of a session information screening apparatus according to an embodiment of the present invention.
Fig. 4 is a schematic block diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear and clear, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
The system architecture main User Port Function (UPF) of the 5g mobile network is mainly used for receiving a message forwarding control protocol message (PFCP message) sent by the Session Management Function (SMF) to create user session information. However, since the session management functional unit has a primary and a secondary protection mechanism, that is, when the primary session management functional unit fails, the standby session management functional unit may timely take over the primary session management functional unit to execute the session management function, and when the standby session management functional unit specifically executes the session management function, the standby session management functional unit may perform service using the user session information that is synchronized with the primary session management functional unit before. However, due to the fact that incomplete synchronization may occur between the active session management functional unit and the standby session management functional unit, after the active and standby protection mechanisms are started, the standby session management functional unit is inconsistent with user session information on the user port functional unit, so that abnormal session information which does not exist in part of the standby session management functional unit exists in the user port functional unit, and part of functions of the user port functional unit may not be realized due to the abnormal session information.
In view of the above-mentioned drawbacks of the prior art, the present invention provides a screening method of session information, by acquiring an update message sent by a session management functional unit, and determining that the session management functional unit is a standby session management functional unit according to the update message; acquiring history session information corresponding to a main session management functional unit, wherein the main session management functional unit corresponds to the standby session management unit; and screening the historical session information to obtain abnormal session information which exists in the historical session information but is not stored in the standby session management functional unit. The method solves the problem that after the active-standby protection mechanism of the session management functional unit is started, the standby session management functional unit is inconsistent with the user session information on the user port functional unit, namely, the user port functional unit has abnormal session information which does not exist in part of the standby session management functional unit, so that part of functions of the user port functional unit cannot be realized.
As shown in fig. 1, the method for screening session information includes the following steps:
step S100, obtaining the update message sent by the session management function unit, and judging whether the session management function unit is a standby session management function unit according to the update message.
In particular, in actual use, one user port functional unit may establish a data connection with a plurality of different session management functional units, e.g. one UPF may establish a data connection with SMF1, SMF2, SMF 3. Every time a new session management functional unit needs to establish a data connection with a user port functional unit, an update message needs to be sent to the user port functional unit. In addition, after the active session management functional unit originally connected to the user port functional unit starts the active/standby protection mechanism, when the standby session management functional unit establishes a data connection with the user port functional unit, an update message needs to be sent to the user port functional unit. Because the information carried in the update message is different, the user port functional unit can determine whether the session management functional unit which needs to be connected currently is a standby session management functional unit according to the received update message, that is, whether the session management functional unit is a brand new session management functional unit or an original connected main session management functional unit has main-standby switching.
In one implementation, in order to determine whether the current session management function unit needs to be connected, the user port function unit needs to acquire the function information of the session management function unit carried in the update message first, and then determine whether the session management function unit is a standby session management function unit according to the function information.
Specifically, since each update message includes the function information of the session management function unit that transmits the update message, the function information may reflect various functions that the session management function unit has, such as information transmission or performing operations, and the like. The function information corresponding to the different session management function units is different, and only the function information corresponding to the main session management function unit and the standby session management function unit is the same, so that the session management function units can be distinguished according to the function information.
Specifically, in this embodiment, original function information corresponding to each of a plurality of session management function units connected to the user port function unit needs to be acquired, then the function information is respectively matched with the original function information corresponding to each of the plurality of session management function units, and when matching is successful, it is determined that the session management function unit is the standby session management function unit. In short, the respective function information of each of the different session management function units is different, i.e. the number or type of functions performed by the different session management function units is different. But the number and types of functions performed by the active session management function unit and the standby session management function unit corresponding to the same session management function unit are identical. I.e. the number or type of functions performed by both SMF1 and SME2 are different, SMF1 can perform 5 functions and SMF2 can perform only 3 functions, but the number and type of functions performed by the corresponding primary and backup SMFs of SMF1 are identical. Therefore, after the user port functional unit acquires the update message, by checking the functional information carried in the update message and then searching whether the same functional information exists in the original functional information corresponding to each of the plurality of session management functional units connected with the user port functional unit, whether the current session management functional unit is a new session management functional unit or the session management functional unit connected with the current session management functional unit is subjected to main/standby switching can be judged.
As shown in fig. 1, the method further comprises the steps of:
step 200, when the session management functional unit is the standby session management functional unit, historical session information corresponding to a main session management functional unit is obtained from a user port functional unit, and the main session management functional unit corresponds to the standby session management unit.
Since the objective in this embodiment is to determine abnormal session information existing in the user port functional unit, where the abnormal session information refers to session information stored in the user port functional unit after the session management functional unit performs active-standby switching, but not stored in the corresponding standby session management functional unit, in this embodiment, historical session information for screening out the abnormal session information needs to be first acquired, where the historical session information is created by the user port functional unit based on a packet forwarding control protocol message (PFCP message) sent by the active session management function corresponding to the standby session management function.
As shown in fig. 1, the method further comprises the steps of:
step S300, screening the history session information to obtain abnormal session information in the history session information, wherein the abnormal session information is session information stored in the history session information but not stored in the standby session management function unit.
In short, before the active-standby switching occurs, the session information on the active session management functional unit and the session information in the user port functional unit should be consistent, but after the active-standby switching occurs, if the active-standby synchronization has a problem, part of the session information may be missing on the standby session management unit, and by comparing the historical session information stored on the user port functional unit with the session information stored on the standby session management unit, the missing part of the session information may be determined, and the session information belongs to abnormal session information in the user port functional unit.
In one implementation manner, the step S300 specifically includes the following steps:
step 301, each piece of session information in the history session information is acquired, and a corresponding request message is generated according to the session information;
step S302, according to the request message, determining the storage state of the session information in the standby session management function unit;
step S303, when the storage state is not stored, determining that the session information is the abnormal session information.
Specifically, in order to accurately find out abnormal session information in the user port functional unit, in this embodiment, a piece of request information needs to be generated according to each piece of session information in the historical session information, and then according to the generated request information, the request information may be used to obtain a storage state of the piece of session information in the standby session management functional unit, if the storage state of the piece of session information is not stored, that is, it indicates that the piece of session information does not exist in the standby session management functional unit, and the piece of session information is the abnormal session information; if the storage state of the piece of session information is storage, that is, the piece of session information exists in the standby session management function unit, the piece of session information is normal session information.
In one implementation manner, the embodiment needs to send the request message to the standby session management functional unit, then acquire a response message generated by the standby session management functional unit based on the request message, and when the response message is a query failure, determine that the storage state of the session information is not stored. Specifically, as shown in fig. 2, the user port functional unit generates a request message according to each piece of history session information, and sends the request message to the standby session management functional unit, and the standby session management functional unit locally queries the piece of history session information after acquiring the request message. When the inquiry is successful, a response message of the inquiry success is sent to the user port functional unit, the user port functional unit can know that the history session information is stored in the standby session management functional unit according to the response message, and the history session information is normal session information. When the inquiry fails, the inquiry failure response message is sent to the user port functional unit, the user port functional unit can know that the history session information is not stored in the standby session management functional unit according to the response message, and the history session information is abnormal session information.
In one implementation, after the abnormal session information is determined, a deletion instruction may be generated according to the abnormal session information, and a deletion operation may be performed on the abnormal session information according to the deletion instruction. In practical applications, because the existence of the abnormal session information may cause that part of functions of the user port functional unit cannot be realized, in order to ensure the normal operation of the user port functional unit, the abnormal session information needs to be deleted.
In one implementation, a reminder message may also be generated according to the abnormal session, and a synchronization status abnormality between the active session management function unit and the standby session management function unit may be prompted according to the reminder message.
Based on the above embodiment, the present invention further provides a screening device for session information, as shown in fig. 3, where the device includes:
a determining module 01, configured to obtain an update message sent by a session management functional unit, and determine whether the session management functional unit is a standby session management functional unit according to the update message;
an obtaining module 02, configured to obtain, when the session management functional unit is the standby session management functional unit, historical session information corresponding to an active session management functional unit, where the active session management functional unit corresponds to the standby session management unit;
and the screening module 03 is configured to screen the historical session information to obtain abnormal session information in the historical session information, where the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit.
Based on the above embodiment, the present invention also provides a terminal, and a functional block diagram thereof may be shown in fig. 4. The terminal comprises a processor, a memory, a network interface and a display screen which are connected through a system bus. Wherein the processor of the terminal is adapted to provide computing and control capabilities. The memory of the terminal includes a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the terminal is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a method of screening session information. The display screen of the terminal may be a liquid crystal display screen or an electronic ink display screen.
It will be appreciated by those skilled in the art that the functional block diagram shown in fig. 4 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the terminal to which the present inventive arrangements may be applied, and that a particular terminal may include more or less components than those shown, or may combine some of the components, or have a different arrangement of components.
In one implementation, one or more programs are stored in a memory of the terminal and configured to be executed by one or more processors, the one or more programs including instructions for performing a screening method of session information.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
In summary, the invention discloses a screening method, a screening device, a screening terminal and a storage medium of session information, wherein whether a session management functional unit is a standby session management functional unit is judged according to an update message sent by the session management functional unit; when the session management functional unit is the standby session management functional unit, acquiring history session information corresponding to a main session management functional unit, wherein the main session management functional unit corresponds to the standby session management unit; screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit. The method solves the problem that after the active-standby protection mechanism of the session management functional unit is started, the standby session management functional unit is inconsistent with the user session information on the user port functional unit, namely, the user port functional unit has abnormal session information which does not exist in part of the standby session management functional unit, so that part of functions of the user port functional unit cannot be realized.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (8)
1. A method for screening session information, the method being applied to a user port functional unit, the method comprising:
acquiring an update message sent by a session management functional unit, and judging whether the session management functional unit is a standby session management functional unit according to the update message;
when the session management functional unit is the standby session management functional unit, acquiring historical session information corresponding to a main session management functional unit in a user port functional unit, wherein the main session management functional unit corresponds to the standby session management unit;
screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit;
the step of judging whether the session management function unit is a standby session management function unit according to the update message includes:
acquiring the function information of the session management function unit carried in the update message;
determining whether the session management function unit is a standby session management function unit according to the function information;
the determining whether the session management function unit is a standby session management function unit according to the function information includes:
acquiring original function information corresponding to each of a plurality of session management function units connected with the user port function unit;
matching the function information with original function information corresponding to each of the session management function units;
and when the matching is successful, determining the session management function unit as the standby session management function unit.
2. The method for screening session information according to claim 1, wherein the step of screening the historical session information to obtain abnormal session information in the historical session information comprises:
each piece of session information in the history session information is acquired, and a corresponding request message is generated according to the session information;
determining a storage state of the session information in the standby session management function unit according to the request message;
and when the storage state is not stored, determining that the session information is the abnormal session information.
3. The method for screening session information according to claim 2, wherein said determining a storage state of said session information in said standby session management function unit according to said request message comprises:
sending the request message to the standby session management function unit;
acquiring a response message generated by the standby session management functional unit based on the request message;
and when the response message is query failure, determining that the storage state of the session information is not stored.
4. The method for screening session information according to claim 1, further comprising:
generating a deleting instruction according to the abnormal session information;
and executing deleting operation on the abnormal session information according to the deleting instruction.
5. The method for screening session information according to claim 1, further comprising:
and generating a reminding message according to the abnormal session information, wherein the reminding message is used for prompting and checking the synchronous state between the main session management function unit and the standby session management function unit.
6. A screening apparatus for session information, the apparatus comprising:
the determining module is used for acquiring the update message sent by the session management functional unit and judging whether the session management functional unit is a standby session management functional unit according to the update message;
the acquisition module is used for acquiring historical session information corresponding to a main session management function unit when the session management function unit is the standby session management function unit, wherein the main session management function unit corresponds to the standby session management unit;
the screening module is used for screening the historical session information to obtain abnormal session information in the historical session information, wherein the abnormal session information is session information stored in the historical session information but not stored in the standby session management functional unit;
the step of judging whether the session management function unit is a standby session management function unit according to the update message includes:
acquiring the function information of the session management function unit carried in the update message;
determining whether the session management function unit is a standby session management function unit according to the function information;
the determining whether the session management function unit is a standby session management function unit according to the function information includes:
acquiring original function information corresponding to each of a plurality of session management function units connected with a user port function unit;
matching the function information with original function information corresponding to each of the session management function units;
and when the matching is successful, determining the session management function unit as the standby session management function unit.
7. A terminal comprising a memory and one or more processors; the memory stores one or more programs; the program comprising instructions for performing the screening method of session information according to any one of claims 1-5; the processor is configured to execute the program.
8. A computer readable storage medium having stored thereon a plurality of instructions loaded and executed by a processor to implement the steps of the method of screening session information according to any of the preceding claims 1-5.
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