CN115604857A - Method and system for user grouping monitoring based on signaling surface - Google Patents
Method and system for user grouping monitoring based on signaling surface Download PDFInfo
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- CN115604857A CN115604857A CN202211204999.2A CN202211204999A CN115604857A CN 115604857 A CN115604857 A CN 115604857A CN 202211204999 A CN202211204999 A CN 202211204999A CN 115604857 A CN115604857 A CN 115604857A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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Abstract
The invention discloses a method and a system for user grouping monitoring based on a signaling surface, wherein the method comprises the following steps: the PDU conversation resource application function establishes a flow channel which guarantees the bit rate; PDU conversation resource application function operation strategy authentication subscription service applies for conversation monitoring subscription to strategy control function and sends registration request information to strategy control function; configuring a characteristic field representing the unique identity of the user in the registration request information, and associating the characteristic field with the service and the event; the strategy control function associates a plurality of users with the same characteristic field value according to the received registration request information to form a subscription event user group; according to the method, when the users need to be monitored in a grouping mode, the strategy control function and the PDU session resource application function in the core network do not need to self-define and construct user groups, the operation times of maintenance personnel can be effectively reduced, the resource storage consumption is effectively reduced, the signaling processing speed is accelerated, and the method is more suitable for high-capacity and high-concurrency scenes.
Description
Technical Field
The invention relates to the technical field of communication network monitoring, in particular to a method and a system for user grouping monitoring based on a signaling plane.
Background
In the fifth generation (5rd generation, 5g) network architecture, a user initiates to create a traffic channel with a guaranteed bit rate through an AF (PDU session resource application function), and for these users, some network managers want to count the throughput of the user in a packet manner, so as to achieve operations such as limiting the speed of a user group. In contrast, as shown in fig. 6, in the conventional method, a target user is generally customized from a pcf (policy control function) to construct a user group, and then, a usage quota is allocated by a subscription service, and the pcf calculates the usage of the user group to achieve actions such as controlling a rate. However, with this approach, the resource consumption and data storage pressure of the pcf is increased by the need to associate each user with a service. In addition, if the AF wants to perform service event grouping management on users, the AF also needs to customize and construct user groups, and associate each user with an event, so that the resource consumption and data storage pressure of the AF are increased.
Disclosure of Invention
The invention aims to provide a method and a system for carrying out user grouping monitoring based on a signaling plane, which can reduce the resource consumption and the data storage pressure of a policy control function and a PDU (protocol data unit) conversation resource application function in a communication system and can ensure that both the policy control function and the PDU conversation resource application function can obtain the information of corresponding user groups.
In order to achieve the above object, the present invention discloses a method for monitoring user groups based on a signaling plane, which comprises:
according to PDU conversation reestablishment flow information initiated by a terminal, a PDU conversation resource Application Function (AF) establishes a flow channel which is connected between the terminal and a core network and ensures bit rate;
the PDU session resource Application Function (AF) operates the policy authentication subscription service to apply for session monitoring subscription to a Policy Control Function (PCF), and sends registration request information (eventsSubscReqData) to the Policy Control Function (PCF);
configuring a characteristic field representing a unique identity of a user in the registration request information (eventsubscreqdata) and associating the characteristic field with a service and an event;
and the Policy Control Function (PCF) associates a plurality of users with the same characteristic field value according to the received registration request information to form a subscription event user group.
Preferably, when the session management function reports the usage of the user network signal, the policy control function makes a public usage statistic for the users having the same value in the characteristic field, and initiates a policy control update notification service to the session management function through the policy control function, so as to implement a traffic speed limit or offline operation for the subscription event user group.
Preferably, the policy control function initiates a policy control update notification service to the session management function, and at the same time, the policy control function initiates a policy authentication notification service to the PDU session resource application function.
Preferably, the data type of the characteristic field is a character string.
The invention also discloses a system for monitoring user groups based on the signaling plane, which comprises:
a flow channel establishing module, which is used for establishing a flow channel for connecting the terminal and the core network with guaranteed bit rate based on PDU conversation resource application function according to PDU conversation reestablishment flow information initiated by the terminal;
the session subscription module is used for applying a session monitoring subscription to a policy control function based on the PDU session resource application function operation policy authentication subscription service and sending registration request information to the policy control function;
a user identity marking module, which is used for configuring a characteristic field representing the unique identity of the user in the registration request information and associating the characteristic field with the service and the event;
and the user association module is used for associating a plurality of users with the same characteristic field value based on the policy control function and the received registration request information so as to form a subscription event user group.
Preferably, the system also comprises a flow statistic module and a flow control module;
the flow statistic module is used for carrying out public usage statistics on users with the same value of the characteristic field based on the policy control function when the session management function reports the usage of user network signals;
and the flow control module is used for initiating a policy control update notification service to the session management function through the policy control function so as to realize the flow rate limit or offline operation of the subscription event user group.
Preferably, the flow control module initiates a policy control update notification service to the session management function through the policy control function, and also initiates a policy authentication notification service to the PDU session resource application function through the policy control function.
Preferably, the data type of the characteristic field is a character string.
The invention also discloses another system for monitoring the user grouping based on the signaling surface, which comprises the following steps:
one or more processors;
a memory;
and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs including instructions for performing the method for signaling plane based subscriber group monitoring as described above.
The invention also discloses a computer readable storage medium comprising a computer program executable by a processor to perform the method for user group monitoring based on a signaling plane as described above.
Compared with the prior art, the technical scheme of the invention configures the characteristic field representing the unique identity of the user in the registration request information and associates the characteristic field with the service and the event, so that when the user group is required to be monitored, a Policy Control Function (PCF) and a PDU session resource Application Function (AF) in a core network do not need to self-define a user group, and only the corresponding characteristic field is carried when the AF initiates the flow channel establishment every time, thereby effectively reducing the operation times of maintenance personnel; in addition, the resource storage consumption of PCF and AF can be effectively reduced, the storage of data volume in the server is greatly reduced, the logic judgment process is simplified, the signaling processing speed is accelerated, and the method is more suitable for high-capacity and high-concurrency scenes.
Drawings
Fig. 1 is a flowchart of a method for monitoring user groups according to an embodiment of the present invention.
Fig. 2 is an execution schematic diagram of the PDU session resource application function establishing a traffic channel in the embodiment of the present invention.
Fig. 3 is an execution schematic diagram of monitoring usage of a user by a 5GC packet in the embodiment of the present invention.
FIG. 4 is a diagram of an association between feature fields according to an embodiment of the present invention.
FIG. 5 is another correlation diagram of the characteristic fields according to the embodiment of the present invention.
Fig. 6 is a diagram illustrating a prior art 5GC monitoring on user packets.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
The embodiment discloses a method for monitoring user packets based on a signaling plane, which is used for a core network in a wireless communication system, wherein the wireless communication system can be a 5G system or other communication systems compatible with the 5G system. Taking the 5G system as an example, the network elements and service modules of the 5GC (core network) in this embodiment are as follows:
1. a Policy Control Function (PCF), which is a standard 5GC network element and provides a Policy-based decision mechanism and a FLOW-based charging Function;
2. session Management Function (SMF), which is responsible for tunnel maintenance, IP address allocation and Management, UPF selection, policy enforcement, control in QoS, charging data acquisition, roaming, etc.;
3. access and Mobility Management Function (Access and Mobility Management Function), abbreviated as AMF, performs registration, connection, reachability, and Mobility Management; providing a session management message transmission channel for UE and SMF, providing authentication and authorization functions for a user when accessing, and accessing a terminal and a wireless core network control plane;
4. PDU session resource Application Function (AF), which refers to various services of an Application layer, and may be an Application in an operator, such As a voltage AF (similar to a 4G voltage As), or an AF of a third party (such As a video server and a game server);
5. a User Plane Function (User Plane Function), abbreviated as UPF, which is mainly used for routing and forwarding data from a base station to a network;
6. a policy control update notification service (Npcf _ SMPolicyControl _ UpdateNotify);
7. policy control request service (Npcf _ SMPolicyControl _ Create);
8. policy authentication creation service (Npcf _ PolicyAuthorization _ Create);
9. policy authentication notification service (Npcf _ PolicyAuthorization _ Notify);
10. policy authentication subscription service (Npcf _ PolicyAuthorization _ subscription).
It should be noted that the network element and the service function module of the 5GC belong to known mature technologies, and therefore detailed description of the specific working principle is omitted.
As shown in fig. 1, the method in this embodiment includes the following steps:
s1: according to PDU conversation reestablishment flow information initiated by a terminal, AF establishes a flow channel which is connected between the terminal and a core network and ensures bit rate;
s2: the AF operation strategy authentication subscription service applies for a session monitoring subscription to the PCF and sends registration request information (eventsSubseReqData) to the PCF;
s3: configuring a characteristic field representing a unique identity of a user in the registration request information and associating the characteristic field with a service (such as fig. 4) and an event (such as fig. 5);
s4: and the PCF associates a plurality of users with the same characteristic field value according to the received registration request information to form a subscription event user group.
Specifically, based on the above method, the flow of performing user grouping monitoring by 5GC is as follows:
first, as shown in fig. 2, the construction of the flow channel is performed according to the following procedure:
s10: the AF establishes a request message structure AppSessionContextReqData to Create a new request, and requests the PCF to Create a flow channel with a guaranteed bit rate through Npcf _ PolicyAuthorization _ Create;
s11: after receiving the AF creating request, the PCF constructs a corresponding rule according to AppSessionContexteReqData and packages the rule into SmPolicyDeprecision, and sends the SmPolicyDeprecision to the SMF through Npcf _ SMPolicyControl _ UpdateNotify;
s12: when the SMF receives SmPolicyDecision from the PCF, the SMF may take appropriate measures to reconfigure the user plane functions of the PDU session.
Secondly, the AF applies to the PCF for a corresponding session monitoring subscription by operating Npcf _ PolicyAuthorization _ Subscribe, and sends EventsSubscReqData to the PCF, thereby realizing initiating subscription to a certain event. In the communication protocol of 5GC, the data definition type of eventsubscreqdata is shown in table 1 below, where "eventGroupId" is a characteristic field.
TABLE 1
Then, based on the configuration of the characteristic field eventGroupID, when the users need to be grouped and monitored, the PCF does not need to define the user group and then associate the user group with the service, the EVtGroupID is directly associated with the service, and the AF associates the eventGroupID with the event.
Finally, PCF notifies corresponding subscription event to AF monitoring, that is, PCF initiates Npcf _ PolicyAuthorization _ Notify action after receiving the above-mentioned AF initiated event subscription, sends EventsNotification data to AF, and notifies monitoring message of AF corresponding event, where in the communication protocol of 5GC, the data definition type of EventsNotification is as shown in table 2 below.
TABLE 2
More specifically, as shown in fig. 3, when the SMF reports the usage of the user network signal, the PCF performs public usage statistics on users having the same value of the characteristic field, and initiates a policy control update notification service to the SMF through the PCF to implement the traffic speed limit or offline operation of the subscription event user group, thereby implementing traffic monitoring on the target user group.
In addition, PCF initiates policy control update notification service to SMF, and also initiates policy authentication notification service to AF. When receiving the event notification data eventsNotification reported by the PCF, the AF knows the reporting condition of the corresponding packet event through eventsNotification, and counts the public usage of the current packet user according to the usgrep data (inherent content in the 5GC communication protocol) in the eventsNotification, and determines whether to update or terminate the traffic channel for the users in the user group.
Alternatively, the data type of the characteristic field is a character string, as in tables 1 and 2.
According to the method, because the characteristic field representing the unique identity of the user is configured in the registration request information and is associated with the service and the event, when the user group is required to be monitored, the PCF and the AF in the core network do not need to self-define to construct a user group, and only the corresponding characteristic field is carried when the AF initiates the flow channel construction each time, so that the operation times of maintenance personnel can be effectively reduced; in addition, the resource storage consumption of PCF and AF can be effectively reduced, the storage of data volume in the server is greatly reduced, the logic judgment process is simplified, the signaling processing speed is accelerated, and the method is more suitable for high-capacity and high-concurrency scenes.
In another preferred embodiment of the present invention, a system for performing user group monitoring based on a signaling plane is further disclosed, which includes:
a flow channel establishing module, which is used for establishing a flow channel for connecting the terminal and the core network with guaranteed bit rate based on PDU conversation resource application function according to PDU conversation reestablishment flow information initiated by the terminal;
the session subscription module is used for applying a session monitoring subscription to a policy control function based on the PDU session resource application function operation policy authentication subscription service and sending registration request information to the policy control function;
the user identity marking module is used for configuring a characteristic field representing the unique identity of the user in the registration request information and associating the characteristic field with the service and the event;
and the user association module is used for associating a plurality of users with the same characteristic field value based on the policy control function and the received registration request information so as to form a subscription event user group.
Further, the system also comprises a flow statistic module and a flow control module. And the flow counting module is used for carrying out public usage counting on the users with the same value of the characteristic field based on the strategy control function when the session management function reports the usage of the user network signals.
The flow control module is used for initiating a policy control update notification service to the session management function through the policy control function so as to realize the flow rate limit or offline operation of the subscription event user group.
Furthermore, the flow control module initiates a policy control update notification service to the session management function through the policy control function, and also initiates a policy authentication notification service to the PDU session resource application function through the policy control function.
The invention also discloses another system for user group monitoring based on the signaling plane, which comprises one or more processors, a memory and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the program comprises instructions for executing the method for user group monitoring based on the signaling plane. The processor may adopt a general Central Processing Unit (CPU), a microprocessor, an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits, and is configured to execute related programs, so as to implement functions required to be executed by modules in the system for performing user group monitoring based on a signaling plane according to the embodiment of the present Application, or to implement the method for performing user group monitoring based on a signaling plane according to the embodiment of the present Application.
The invention also discloses a computer readable storage medium comprising a computer program executable by a processor to perform the method for user group monitoring based on a signaling plane as described above. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a read-only memory (ROM), or a Random Access Memory (RAM), or a magnetic medium, such as a floppy disk, a hard disk, a magnetic tape, a magnetic disk, or an optical medium, such as a Digital Versatile Disk (DVD), or a semiconductor medium, such as a Solid State Disk (SSD).
The embodiment of the application also discloses a computer program product or a computer program, which comprises computer instructions, and the computer instructions are stored in a computer readable storage medium. The processor of the electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes the method for monitoring the user group based on the signaling plane.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (10)
1. A method for user grouping monitoring based on a signaling plane is characterized by comprising the following steps:
according to PDU conversation reestablishing flow information initiated by a terminal, a PDU conversation resource application function establishes a flow channel which is connected between the terminal and a core network and ensures bit rate;
the PDU session resource application function operating strategy authentication subscription service applies for a session monitoring subscription to a strategy control function and sends registration request information to the strategy control function;
configuring a characteristic field representing the unique identity of the user in the registration request information, and associating the characteristic field with services and events;
and the strategy control function associates a plurality of users with the same characteristic field value according to the received registration request information to form a subscription event user group.
2. The method according to claim 1, wherein when a session management function reports the usage of user network signals, the policy control function performs common usage statistics on users having the same value in the feature field, and initiates a policy control update notification service to the session management function through the policy control function, so as to implement traffic speed limitation or offline operation on the subscribed event user group.
3. The method of claim 2 wherein the policy control function initiates a policy control update notification service to the session management function and a policy authentication notification service to the PDU session resource application function.
4. The method for subscriber group monitoring based on signaling plane as claimed in claim 1, wherein the data type of the characteristic field is a character string.
5. A system for monitoring user groups based on a signaling plane, comprising:
a flow channel establishing module, which is used for establishing a flow channel for connecting the terminal and the core network with guaranteed bit rate based on PDU session resource application function according to PDU session reestablishment flow information initiated by the terminal;
the session subscription module is used for applying a session monitoring subscription to a policy control function based on the PDU session resource application function operation policy authentication subscription service and sending registration request information to the policy control function;
the user identity marking module is used for configuring a characteristic field representing the unique identity of the user in the registration request information and associating the characteristic field with the service and the event;
and the user association module is used for associating a plurality of users with the same characteristic field value based on the policy control function and the received registration request information so as to form a subscription event user group.
6. The system for monitoring user grouping based on the signaling plane as claimed in claim 5, further comprising a flow statistic module and a flow control module;
the flow statistic module is used for carrying out public usage statistics on users with the same value of the characteristic field based on the policy control function when the session management function reports the usage of user network signals;
the flow control module is used for initiating a policy control update notification service to the session management function through the policy control function so as to realize the flow rate limit or offline operation of the subscription event user group.
7. The system according to claim 6, wherein the flow control module initiates a policy control update notification service to the session management function via the policy control function, and at the same time initiates a policy authentication notification service to the PDU session resource application function via the policy control function.
8. The system for subscriber group monitoring based on signaling plane as claimed in claim 5, wherein the data type of the characteristic field is a character string.
9. A system for monitoring user groups based on a signaling plane, comprising:
one or more processors;
a memory;
and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs comprising instructions for performing the method for signaling plane based user group monitoring of any of claims 1 to 4.
10. A computer-readable storage medium comprising a computer program executable by a processor to perform the method for user group monitoring based on a signaling plane according to any of claims 1 to 4.
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