CN112188514B - Service processing method, network equipment and storage medium - Google Patents

Service processing method, network equipment and storage medium Download PDF

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Publication number
CN112188514B
CN112188514B CN201910605829.7A CN201910605829A CN112188514B CN 112188514 B CN112188514 B CN 112188514B CN 201910605829 A CN201910605829 A CN 201910605829A CN 112188514 B CN112188514 B CN 112188514B
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service
processing
range
target
service processing
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CN112188514A (en
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杨帆
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2020/092169 priority patent/WO2021004175A1/en
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0268—Traffic management, e.g. flow control or congestion control using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Hardware Redundancy (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The embodiment of the invention provides a service processing method, network equipment and a storage medium, wherein based on the concept of a service range, when a service NF discovers a target service processing NF, an NRF can take the target service range as a basis, so that a main NF capable of processing the target service range and a standby NF capable of carrying out disaster recovery on the processing of the service in the target service range are inquired, the relation between the main NF and the standby NF is not directly and strictly binding two devices one by one, but only has a main-standby relation when the service NF corresponds to the target service range, therefore, the scheme removes the stiff binding relation between the NFs, and naturally, a disaster recovery mechanism becomes more flexible, thereby being beneficial to improving the performance of a service processing system and optimizing resource allocation.

Description

Service processing method, network equipment and storage medium
Technical Field
The present invention relates to the field of communications, and in particular, to a service processing method, a network device, and a storage medium.
Background
3GPP (3 rd Generation Partnership Project, third Generation partnership project) introduced 5G (the fifth generation, 5 th generation communication system) networks. Currently, a network architecture based on a service interface proposed by 3GPP has been prepared under commercial conditions, and as the commercial deployment process of a 5G network tries to use commercial services is continuously accelerated, the disaster recovery mechanism is considered in the industry.
In the related art, a disaster recovery scheme of "1+1" is mainly proposed, that is, a backup service processing NF (universal service) is configured for a primary service processing NF (Network Function), for example, UDM (universal DATA MANAGEMENT, unified data management), so that the backup service processing NF is adopted as a primary device when the primary service processing NF is not suitable for continuing to be used as the primary device. However, the disaster recovery mechanism has poor flexibility and can influence the resource utilization level of the service processing system.
Disclosure of Invention
The business processing method, the network equipment and the storage medium provided by the embodiment of the invention mainly solve the technical problem that the disaster recovery backup scheme in the related technology is low in flexibility.
In order to solve the above technical problems, an embodiment of the present invention provides a service processing method, including:
The service processing network function NF sends a registration request carrying attribute information to the network storage function NRF for registration, wherein the attribute information comprises range indication and priority indication, the range indication is used for indicating the service in at least two service ranges which can be processed by the service processing NF, and the priority indication is used for indicating the processing priority of the service processing NF relative to other service processing NF on the service in each service range indicated by the range indication;
the service processing NF receives the service in a target service range allocated by the service NF, wherein the target service range is a service range to which the service to be processed on the service NF belongs, and the target service range is one of at least two service ranges;
the business processing NF processes the business in the target business range.
The embodiment of the invention also provides a service processing method, which comprises the following steps:
The NRF receives a discovery request which is sent by a service NF and carries a target service range, wherein the target service range is a service range to which a service to be processed on the service NF belongs;
The NRF selects at least two target business processes NF capable of processing businesses in a target business scope from the business processes NF according to the attribute information of each business process NF stored by the NRF, wherein the target business processes NF comprise a main NF and a standby NF which has lower processing priority than the main NF and is capable of processing businesses in the target business scope, and the main NF is at least capable of processing businesses in two business scopes; the attribute information comprises range indication and priority indication, wherein the range indication is used for indicating the service range which can be processed by the service processing NF, and the priority indication is used for indicating the processing priority of the service processing NF to the service in each service range indicated by the range indication relative to other service processing NF;
the NRF sends NF indication information to the business NF, wherein the NF indication information is used for indicating the target business processing NF and the processing priority of each target business processing NF to the business in the target business range.
The embodiment of the invention also provides a service processing method, which comprises the following steps:
The service NF sends a discovery request carrying a target service range to the NRF, wherein the target service range is a service range to which a service to be processed on the service NF belongs;
The service NF receives NF indication information sent by the NRF, the NF indication information is used for indicating at least two target service processing NF capable of processing the service in the target service range and the processing priority of each target service processing NF on the service in the target service range, the target service processing NF comprises a main NF and a standby NF which is lower than the main NF in the processing priority of the service in the target service range, and the main NF can process the service in the two service ranges at least simultaneously; the target business process NF is selected from the business processes NF by the NRF according to the stored attribute information of the business processes NF; the attribute information comprises range indication and priority indication, wherein the range indication is used for indicating the service range which can be processed by the service processing NF, and the priority indication is used for indicating the processing priority of the service processing NF to the service in each service range indicated by the range indication relative to other service processing NF;
the service NF dispatches the service in the target service range to the main NF, so that the main NF processes the dispatched service.
The embodiment of the invention also provides a network device, which comprises a processor, a memory and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
The processor is used for executing a first service processing program stored in the memory to realize the steps of the first service processing method;
or the processor is used for executing a second service processing program stored in the memory so as to realize the steps of the second service processing method;
or the processor is configured to execute a third service processing program stored in the memory, so as to implement the steps of the third service processing method.
The embodiment of the invention also provides a storage medium, which is characterized in that at least one of a first service processing program, a second service processing program and a third service processing program is stored in the storage medium, and the first service processing program can be executed by one or more processors so as to realize the steps of the first service processing method; the second service processing program may be executed by one or more processors to implement the steps of the second service processing method described above; the third business process program may be executed by one or more processors to implement the steps of the third business process method described above.
The beneficial effects of the invention are as follows:
According to the service processing method, the network equipment and the storage medium provided by the embodiment of the invention, the NRF stores the range indication and the priority indication attribute information of each service processing NF, and the attribute information can represent at least two service ranges which can be processed by the service processing NF and the processing priority of the service processing NF on the service in each service range relative to other service processing NF. When the service NF discovers the service processing NF, the NRF can select a target service processing NF capable of processing the service in the target service range for the service NF according to the target service range carried by the service NF in the discovery request and the attribute information of each service processing NF stored by the NRF, and indicate the target service processing NF and the processing priority of each target service processing NF to the service in the target service range to the service NF through NF indication information. The target service processing NF indicated by the NRF includes a primary NF with a higher service processing priority in the target service range, and the service NF can assign the service in the target service range to the primary NF according to the NF indication information, so that the primary NF processes the assigned service. Meanwhile, the target business processing NF also comprises a standby NF, and the standby NF also has the capability of processing the business in the target business range, but the processing priority of the standby NF to the business in the target business range is relatively lower than that of the main NF, so that the standby NF can be used as standby equipment to carry out disaster recovery on the target business range while the main NF processes the business. The object of the disaster recovery of the standby NF is the business in the target business scope, so the standby NF is not required to have the processing capacity completely consistent with that of the main NF, and therefore, the disaster recovery scheme has stronger flexibility, is beneficial to improving the performance of a business processing system and optimizing the resource configuration.
Additional features and corresponding advantages of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is an interactive flow chart of a business processing method according to a first embodiment of the present invention;
fig. 2 is an interactive flowchart for replacing a primary NF in the service processing method provided in the second embodiment of the present invention;
FIG. 3 is a first schematic diagram of a disaster recovery scheme according to a third embodiment of the present invention;
FIG. 4 is a second schematic diagram of a disaster recovery scheme according to a third embodiment of the present invention;
FIG. 5 is a third schematic diagram of a disaster recovery scheme according to a third embodiment of the present invention;
FIG. 6 is a fourth schematic diagram of a disaster recovery scheme according to a third embodiment of the present invention;
fig. 7 is an interaction flow chart of a service processing method provided in the fourth embodiment of the present invention;
fig. 8 is a schematic hardware structure of a network device according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following detailed description of the embodiments of the present invention is given with reference to the accompanying drawings. 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.
Embodiment one:
In order to solve the problem of poor flexibility of the disaster recovery scheme caused by the service processing scheme in the related art, the present embodiment provides a service processing method, please refer to an interaction flow chart in the service processing scheme shown in fig. 1:
s102: the service processing NF sends a registration request carrying attribute information to the NRF to register.
In this embodiment, the service NF refers to those NFs that have a service that needs another NF to process, and in contrast, the service processing NF refers to those NFs that can process the service of the service NF. In some examples, the service NF may refer to an AMF (ACCESS AND Mobility Management Function, access mobility management function), and the corresponding service processing NF may be UDM (Unified DATA MANAGEMENT); in other examples, the AMF may also be a service processing NF, in which case the service NF may be an SMF (Session Management Function, session management function entity). Of course, those skilled in the art will understand that the service NF may be other network function network elements besides the SMF or the AMF, and the service processing NF may also have other embodiments besides the AMF and the UDM.
The service processing NF may send a registration request to the NRF when registering with the NRF. In the registration request, the service processing NF carries own attribute information, and uses the attribute information to indicate to the NRF each service range that the service processing NF can process, and its own processing priority to the service in each service range relative to other service processing NF. The attribute information in this embodiment includes a range indication indicating the traffic in at least two traffic ranges that the traffic processing NF can process, and a priority indication indicating the processing priority of the traffic processing NF with respect to the traffic in each traffic range indicated by the range indication with respect to the other traffic processing NF.
In some examples of this embodiment, the range indication may indicate the range of traffic that the traffic processing NF can handle by any of a user number segment, a user group, a network slice, and a context. For example, in a service processing system, service ranges are divided by user number segments, and a service processing NF indicates that the service range that can be processed by the service processing NF is a user number segment a and a service number segment b, where the range is carried in a registration request.
The priority indication can characterize the processing priority of the service processing NF for the other service processing NF for the service in one service range, for example, the processing priority of the service processing NF-Sub>A may be 1 (assuming that the 1 st level is the highest level) and the processing priority of the service processing NF-B may be 5, and then the processing priority of the service processing NF-Sub>A for the service in the user number segment Sub>A is compared to the processing priority of the service processing NF-B for the service in the user number segment Sub>A. It is clear that in some other examples of the present embodiment, the priority indication may directly characterize itself as "high", "medium", "low", etc. for the processing priority of the traffic in the traffic range.
S104: the NRF receives a discovery request carrying a target service range sent by a service NF.
The service NF needs to process the service processing NF, so the service NF needs to query the service processing NF capable of processing the service to be processed. The NRF stores attribute information of the service processing NF, so that when the service NF needs to perform service processing NF discovery, it can send a discovery request to the NRF.
In this embodiment, the backup device in the proposed disaster recovery mechanism performs disaster recovery in units of service ranges, so that the service NF needs to provide its own service range in the stage of discovering the service processing NF. Therefore, the discovery request sent by the service NF to the NRF carries a service range to which the service NF needs to process belongs, and this service range is referred to as a "target service range" in this embodiment. After the NRF receives the discovery request sent by the service NF, the target service range of the high service NF may be obtained from the discovery request.
S106: the NRF selects at least two target business processes NF capable of processing businesses in the target business range from the business processes NF according to the attribute information of the business processes NF stored by the NRF.
In the NRF, attribute information of each service processing NF is stored, and in general, the attribute information stored by the NRF is obtained when the service processing NF registers, for example, in this embodiment, the service processing NF carries the attribute information to the NRF through a registration request when registering, and after the NRF receives the registration request, the attribute information in the registration request may be stored. However, in other embodiments, the attribute information stored by the NRF may be obtained through configuration by a network administrator, for example, after knowing the service ranges supported by each service processing NF in the network and the processing priorities of the services in each service range, the network administrator may configure these information into the NRF.
After the NRF acquires the target service range from the discovery request of the service NF, it can select at least two target service processes NF from the plurality of service processes NF according to the target service range and the attribute information stored by itself, and the target service processes NF refer to the service processes NF that can process the service in the target service range. It can be understood that, according to the target service range and the service range supported by each service processing NF stored by the NRF, all service processing NF capable of processing the service in the target service range can be screened from each service processing NF. In some examples of this embodiment, the NRF may select all traffic processing NF capable of processing traffic in the target traffic range as target traffic processing NF. However, in other examples of the present embodiment, the NRF may select a portion from the service processes NF supporting the service processes in the target service range as the target service process NF, for example, the NRF may select some service processes NF having higher priority for the service processes in the target service range as the target service process NF.
It should be understood that at least two target service processing NFs selected by the NRF should be provided, including a primary NF and a standby NF, where the priority of processing the service in the target service range by the primary NF is higher than the priority of processing the service in the target service range by the standby NF. In some examples of this embodiment, the NRF may select one primary NF and one backup NF for the traffic NF; in other examples of this embodiment, the target service processing NF selected by the NRF for the service NF includes a plurality of target service processing NF, including one primary NF, and the remaining target service processing NF is a standby NF. It will be appreciated that the priority of processing the traffic in the target traffic range by the standby NFs may be the same, for example, the priority of the primary NF is 1, the priority of the standby NF-a is 2, and the priority of the standby NF-b is also 2. In other examples, the processing priority of the standby NFs for traffic in the target range may be different, e.g., the priority of standby NF-a may be 2 and the priority of standby NF-b may be 3. In other examples of this embodiment, there may be multiple primary NFs and multiple backup NFs. In this case, the multiple active NFs may process the traffic of the traffic NF at the same time, somewhat like a distributed traffic processing device.
S108: the NRF sends NF indication information to the service NF.
After selecting the target service processing NF, the NRF may indicate the target service processing NF to the service NF, and also indicate the processing priority of each target service processing to the service in the target service range to the service NF. In this embodiment, the NRF may indicate the above to the service NF through NF indication information.
S110: the business NF distributes the business in the target business scope to the main NF, and the business processing NF processes the business in the target business scope.
After the service NF receives the NF indication information sent by the NRF, the active NF can be determined according to the NF indication information, and then the service NF sends an active NF dispatch service to the active NF.
For a service processing NF, if it is selected as the primary NF by the service NF, it receives the service assigned by the service NF, and then the service processing NF processes the received service. For example, if the service processing NF is a UDM, the service NF is an AMF, and the UDM as the master device will receive the services assigned by the AMF, which will process the services.
For other service processing NFs, it may also process services in the target service range of the service NF, however, these service processing NFs may be currently only standby NFs, so when other service processing NFs process services in the target service range, these standby NFs may not process services in the target service range until the primary NF is unsuitable for continuing as the primary device corresponding to the target service range because of a failure or for other reasons.
However, it will be appreciated that one service handling NF may support handling of services in two or more service areas at the same time, for example, in some examples of this embodiment, one service handling NF may support handling of services in the user number segment a at the same time, and also handling of services in the user number segment b. In this case, according to the service processing method provided in this embodiment, NRF may be different for the selected standby NF for the service in the two service ranges, for example, for the user number segment a, the corresponding used NF is the standby NF-b, and the standby NF corresponding to the user number segment b is not the standby NF-c. Therefore, according to the scheme provided by the embodiment, there is no one-to-one correspondence between the primary NF and the standby NF.
In the service processing method provided in this embodiment, the concept of the service scope is proposed, so when the service NF discovers the target service processing NF, the service NF will take the target service scope as a basis, so as to find a primary NF capable of processing the target service scope and a standby NF capable of disaster recovery for processing the service in the target service scope, where the relationship between the primary NF and the standby NF does not directly bind two devices strictly one-to-one, but only exists when the service NF corresponds to the target service scope, so that the scheme removes the stiff binding relationship between NFs, and the disaster recovery mechanism becomes more flexible naturally.
Embodiment two:
The present embodiment will continue to describe a service processing method based on the first embodiment:
it should be understood that, during the process of processing the target service range by the primary NF, the primary NF may malfunction, or the primary NF may process the service in other service ranges while processing the service in the target service range, and the processing resources of the primary NF are insufficient, in these cases, the primary NF will not be suitable for continuing to serve as the primary NF corresponding to the target service range, so it may reflect to the NRF, so that the service NF can select a new primary NF in time, so as to avoid affecting the processing of the service in the target service range, and the following description of the flow of the primary NF change in the service processing method is given, see an interactive flow chart of a service processing method shown in fig. 2:
s202: the original primary NF determines that the primary NF is not suitable for continuing to serve as the primary NF corresponding to the target service range.
In this embodiment, in the process of processing a service in a target service range of a service NF as a current active NF, one service processing NF may find itself unsuitable for continuing to be the active NF corresponding to the target service range because of some anomalies.
S204: the original primary NF transmits change information to the NRF.
After the primary NF determines that the primary NF is not suitable for continuing to serve as the primary NF corresponding to the target service range, the primary NF may send change information to the NRF so as to notify the NRF. It can be appreciated that in the change information, the priority indication of the current target service range of the original primary NF may be carried. For example, in one example, at the time of registration, the priority indication carried in the registration request characterizes that the service processing NF has a 1-level processing priority for the service in the target service range, and in the change information, the priority indication carried by the service processing NF to the NRF characterizes that the service processing NF has a 5-level processing priority for the service in the target service range.
S206: the NRF indicates the service NF to the service NF through the NF change notification, and determines a new primary NF used for replacing the original primary NF from the standby NF.
After the NRF receives the change information sent by one service processing NF, it can determine whether the service processing NF has been selected by itself as the target service processing NF indicating to the service NF, so the NRF can notify the service NF of the information of the service processing NF on the change of the processing priority of the service in the target service range. For example, in some examples of the present embodiment, the NRF may send a NF change notification to the traffic NF, so that the traffic NF may reselect a new active NF according to the NF change notification.
It can be understood that after the NRF receives the change information sent by the service processing NF, the attribute information of the service processing NF stored by the NRF can be updated according to the priority indication in the change information, so that when the service processing NF is found by other subsequent service NF, the NRF can select the target service processing NF for the NRF according to the latest attribute information.
S208: and the service NF determines a new primary NF used for replacing the original primary NF from the standby NF according to the NF change notification.
After receiving the NF change notification sent by the NRF, the service NF may determine a new primary NF for referring to the primary NF from the standby NF. In some examples of this embodiment, since the NRF has originally determined only two target service processing NFs for the service NF in the service NF discovery phase, in this case, only one standby NF of the target service processing NFs, and therefore, after the service NF receives the NF change notification, the original standby NF may be directly selected as the new primary NF. In other examples of this embodiment, the NRF selects multiple target service processing NFs for the service NF during the service processing NF stage, among which only one primary NF and the rest are standby NFs, so when the service NF needs to determine a new primary NF from the original standby NFs, it needs to select a new primary NF from at least two standby NFs.
In some examples of this embodiment, the processing priorities of the standby NFs on the services in the target service range are different, so the service NF may select, as the new active NF, the one with the highest priority according to the processing priority of each standby NF on the services in the target service range; in other examples of this embodiment, the processing priorities of the standby NFs on the services in the target service range are the same, and then the service NF may randomly select one from the standby NFs as the new active NF.
S210: the service NF dispatches the service within the target service range to the new main NF, so that the new main NF processes the dispatched service.
After selecting the new primary NF, the service NF assigns a service to the new primary NF, so that the new primary NF processes the assigned service, which should be understood that in this embodiment, the original primary NF is the first service processing NF and the new primary NF is the second service processing NF.
It can be understood that the new primary NF is similar to the original primary NF, and may not be suitable to be used as the primary NF due to failure or the like, in this case, the NRF may also be notified by the change information, so that the NRF notifies the service NF to change the primary NF, which is not described herein.
In this embodiment, one service processing NF may support processing of services in a plurality of service ranges, for example, for the service processing NF that is the current active NF, it is not only able to process services in the target service range, but also may process services in other service ranges. When the primary NF is not suitable for continuing to serve as the primary NF corresponding to the target service range, the service processing NF is not necessarily characterized, and the primary NF is not suitable for processing the service in other service ranges. Therefore, in this embodiment, when the service NF migrates the service in the target service range from the original active NF to the new active NF, the service in other service ranges on the original active NF is not migrated to the new active NF. Because in this embodiment, the primary NF and the standby NF have the primary-standby correspondence only in the target service range, and no such binding relationship exists in other service ranges outside the target service range. Therefore, even if the primary NF fails completely, no traffic can be handled, and not all of its traffic must be migrated to the same backup NF.
In this embodiment, a process of changing the primary NF in the service processing method is described, and it can be seen from the description above that, in this embodiment, when the backup NF performs disaster recovery on the primary NF, the backup NF does not perform disaster recovery on the whole of the primary NF in units of service processing NF, but performs disaster recovery in units of a certain service range corresponding to the service processing NF. Therefore, when the active-standby switching is performed, all the services on the active NF are not required to be migrated, so that the flexibility of a disaster recovery mechanism can be improved, the service migration efficiency during the active-standby switching can be improved, the user perception is reduced, and the service experience of a user is improved.
Embodiment III:
several typical disaster recovery schemes of the service processing method in the present invention are described below with reference to the foregoing embodiments:
in some examples of this embodiment, please refer to fig. 3, the service processing NF a 31 supports both the processing of the service range a and the processing of the service range b, which is high for the processing priority of the service in the service range a and also for the processing priority of the service in the service range b. In fig. 3, the larger the graphics area corresponding to the service range, the higher the processing priority of the service processing NF on the service in the service range. The service processing NF b 32 supports processing of the service in the service range a, however, the service processing NF b 32 has a lower priority of processing of the service in the service range a than the service processing NF a 31. Meanwhile, the service processing NF third 32 supports processing of the service in the service range b, however, the service processing NF third 33 has a lower priority of processing of the service in the service range b than the service processing NF first 31. In fig. 3, for service range a, service processing NF a 31 is the primary NF and service processing NF b 32 is the backup NF; for the service range b, the service processing NF a 31 is used as the primary NF, and the service processing NF c 33 is used as the standby NF.
In the example corresponding to fig. 3, after the service processing NF a 31 determines that it is not suitable as the primary NF corresponding to the service range a, the corresponding service NF may migrate the service corresponding to the service range a to the service processing NF b 32, and the service processing NF a 31 continues to process the service in the service range b until the service in the service range b needs to be migrated to the service processing NF c 33 due to the failure of the service processing NF a 31 or the like.
In some examples of this embodiment, please refer to fig. 4, the service processing NF a 41 supports both the processing of the service range a and the processing of the service range b, which has a high priority for the processing of the service in the service range a and a low priority for the processing of the service in the service range b. In fig. 4, the larger the graphics area corresponding to the service range, the higher the processing priority of the service processing NF on the service in the service range. The service processing NF b 42 supports both the processing of the service in the service range a and the processing of the service range b, and has a low processing priority for the service in the service range a and a high processing priority for the service in the service range b. Therefore, in fig. 4, the service processing NF a 41 and the service processing NF b 42 are the main components: for the service range a, the service processing NF A41 is used as a main NF, and the service processing NF B42 is used as a standby NF; for service scope b, service process NF b is the primary NF and service process NF a 41 is the backup NF.
In the example corresponding to fig. 4, after the service processing NF a 31 determines that it is not suitable as the primary NF corresponding to the service range a, the corresponding service NF may migrate the service corresponding to the service range a to the service processing NF b 32; after the service processing NF b 42 determines that it is not suitable as the primary NF corresponding to the service range b, the corresponding service NF may migrate the service corresponding to the service range b to the service processing NF a 41.
In some examples of this embodiment, please refer to fig. 5, the service processing NF a 51 supports both the processing of the service range a and the processing of the service range b, which has a high priority for the processing of the service in the service range a and a low priority for the processing of the service in the service range b. In fig. 5, the larger the graphics area corresponding to the service range, the higher the processing priority of the service processing NF on the service in the service range. The service processing NF b 52 supports both the processing of the service in the service range a and the processing of the service range c, and has a low processing priority for the service in the service range a and a high processing priority for the service in the service range c. The service processing NF c 53 supports both the processing of the service in the service range b and the processing of the service range c, which has a high processing priority for the service in the service range b and a low processing priority for the service in the service range c.
For the service range a, the service processing NF A51 is used as a main NF, and the service processing NF B52 is used as a standby NF; for service range b, service treatment NF propyl 53 is the primary NF, and service treatment NF a 51 is the backup NF; for service scope c, service process NF b 52 is the primary NF and service process NF c 53 is the backup NF. Obviously, in fig. 5, three NFs of the service processing NF a, b and c form a disaster recovery mechanism: service processor NF a 51 serves as a standby NF for service range b in service processor NF c 53, service processor NF c 53 serves as a standby NF for service range c in service processor NF b 52, and service processor NF b 52 serves as a standby NF for service range a in service processor NF a 51.
In the example corresponding to fig. 5, after the service processing NF a 31 determines that it is not suitable as the primary NF corresponding to the service range a, the corresponding service NF may migrate the service corresponding to the service range a to the service processing NF b 32; after the service processing NF b 52 determines that the service processing NF b is not suitable for being used as the main NF corresponding to the service range c, the corresponding service NF can migrate the service corresponding to the service range c to the service processing NF c 53; after the service processing NF determines that the service processing NF is not suitable as the primary NF corresponding to the service range b, the corresponding service NF can migrate the service corresponding to the service range b to the service processing NF a 51.
In other examples of this embodiment, please refer to fig. 6, the service processing NF a 61 supports both the processing of the service range a and the processing of the service range b, which are high in priority for the processing of the services in both service ranges a and b. In fig. 6, the larger the graphics area corresponding to the service range, the higher the processing priority of the service processing NF on the service in the service range. The service processing NF b 62 supports both the processing of the service range c and the processing of the service range d, and the processing priority of the service in both the service ranges c and d is high. The service processing NF propyl 63 supports the processing of the service range a, b, c, d at the same time, but the service processing NF propyl 63 has low processing priority for the services in the service ranges. Therefore, the service processing NF c 63 is a standby NF corresponding to the service processing NF a 61 and the service processing NF b 62 at the same time.
Of course, only a few typical disaster recovery mechanisms are provided herein, and other disaster recovery schemes may also exist according to the service processing method provided in this embodiment, which is not described herein.
Embodiment four:
The present embodiment will explain a service processing method provided in the foregoing embodiment with reference to an example:
Here, it is assumed that the service NF in the present embodiment is an AMF, and the service processing NF is a UDM, where the service to be processed on the AMF is the service on the network slice S1. The UDM includes UDM-1 and UDM-2, wherein UDM-1 supports traffic handling on both network slice S1 and network slice S2. UDM-2 supports traffic handling on both network slice S1 and network slice S3. UDM-3 also supports traffic handling on network slice S1. The following describes the service processing method with reference to the interactive flowchart shown in fig. 7:
s702: UDM-1 sends a registration request to NRF.
In this embodiment, the registration request sent by UDM-1 to NRF indicates that the service range that UDM-1 can handle includes network slice S1 and network slice S2. Meanwhile, the processing priority of the UDM-1 to the service in the network slice S1 is 1 level, and the processing priority of the UDM-1 to the service in the network slice S2 is also 1 level.
S704: UDM-2 sends a registration request to the NRF.
In this embodiment, the registration request sent by UDM-2 to NRF indicates that the service range that UDM-2 can handle includes network slice S1 and network slice S3. Meanwhile, the UDM-2 has a 2-level processing priority for the service in the network slice S1 and a 1-level processing priority for the service in the network slice S3.
S706: UDM-3 sends a registration request to the NRF.
In this embodiment, the registration request sent by UDM-3 to NRF indicates that the range of traffic that UDM-3 can handle includes network slice S1. Meanwhile, the processing priority of the UDM-3 to the service in the network slice S1 is 3.
In this embodiment, the three UDMs UDM-1, UDM-2 and UDM-3 are performed sequentially at the time of registration, but it will be understood by those skilled in the art that the timing of registration of these three UDMs on the NRF may be changed, for example, in other examples of this embodiment, these three UDMs may be registered simultaneously.
It should be understood that for NRF, it may receive registration of various service processes NF, not just the above three UDMs, and for the registration process of other service processes NF, it is not described here again. When the NRF receives the registration request of each UDM, the range indication in the registration request may be stored in association with the priority indication. In an example of the present embodiment, the NRF may store attribute information of each service processing NF in association in a form of a table or the like, as shown in table 1:
TABLE 1
S708: the AMF sends a discovery request to the NRF.
The discovery request carries information indicating that the target traffic range is the network slice S1.
S710: the NRF determines a target UDM from the target service range and the stored attribute information.
In this embodiment, since the network slice S1 of the target service range corresponding to the discovery request is found, the NRF can determine that the target UDM includes UDM-1, UDM-2, and UDM-3 by querying the stored attribute information of each service process NF.
S712: the NRF transmits NF indication information to the AMF.
The NF indication information can indicate to the AMF three UDMs supporting the processing of the traffic in the network switch S1 and the processing priority of each UDM for the traffic in the network switch S1.
S714: the AMF assigns services to UDM-1 according to NF indication information.
After the AMF receives the NF indication information, the current active UDM can be determined to be UDM-1 according to the NF indication information, so that services can be allocated to the UDM-1. After the UDM-1 receives the traffic allocated by the AMF, the traffic in the network slice S1 may be processed.
It will be appreciated that since the UDM-1 has a level 1 for processing the traffic in the network slice S2, the UDM-1 is also used as the active UDM corresponding to the network slice S2, and processes the traffic in the network slice S2 while processing the traffic in the network slice S1.
S716: UDM-1 determines that it cannot continue to act as the active UDM corresponding to network slice S1.
S718: UDM-1 transmits change information to NRF.
The latest processing priority of the UDM-1 on the traffic on the network slice S1 may be carried in the change information sent by the UDM-1 to the NRF, for example, the new priority is 4.
S720: the NRF updates the stored attribute information and transmits NF change notification to the AMF.
In this embodiment, the NRF may change the attribute information stored by itself to the one shown in table 2:
TABLE 2
S722: the AMF reselects the new active UDM based on the NF change notification.
The NF change notification may also carry the latest processing priority of the original primary UDM, i.e., the latest processing priority of the UDM-1 on the traffic on the network slice S1. Thus, when the AMF receives the NF change notification, it can be determined that the current processing priority ratio of the three UDMs of UDM-1, UDM-2 and UDM-3 to the service in the network slice S1 is 4, 2 and 3, so that the AMF selects the UDM-2 with the highest current priority as the new main UDM.
S724: the AMF assigns traffic to UDM-2.
The AMF may assign traffic to the new active UDM, UDM-2. After receiving the traffic allocated by the AMF, the UDM-2 can process the traffic in the network slice S1.
It will be appreciated that, since the change information sent by UDM-1 to NRF does not indicate a change in the processing priority of the traffic in network slice S2, although the traffic in network slice S1 has been migrated from UDM-1, UDM-1 continues to act as the primary UDM corresponding to network slice S2 to process the traffic in network slice S2.
In this embodiment, the processing priority attribute of the registrant (UDM) for the service in each service range is obtained through the NRF, and the corresponding attribute information is sent to the AMF in the NF discovery stage, so that when the processing priority of the host UDM for the service in one service range changes, the AMF can correctly assign the service to the new host UDM. The problem that the service cannot be partially switched after the abnormality occurs to the UDM is solved, and the disaster recovery mechanism under the 5G network service architecture is enriched.
Fifth embodiment:
The present embodiment provides a storage medium in which one or more computer programs that can be read, compiled and executed by one or more processors may be stored, and in this embodiment, the storage medium may store at least one of a first service processing program, a second service processing program, and a third service processing program, where the first service processing program may be used by the one or more processors to execute a flow on the service processing NF side for implementing any of the service processing methods described in the foregoing embodiments. And the second service processing program may be provided for one or more processors to execute a flow on the NRF side for implementing any of the service processing methods described in the foregoing embodiments. The third service processing program may be provided for one or more processors to execute a service NF-side flow for implementing any of the service processing methods described in the foregoing embodiments.
In addition, the present embodiment provides a network device, as shown in fig. 8: the network device 80 comprises a processor 81, a memory 82 and a communication bus 83 for connecting the processor 81 and the memory 82, wherein the memory 82 may be a storage medium storing at least one of the aforementioned first, second and third service processing programs.
In some examples of the present embodiment, the processor 81 may read the first service processing program, compile and execute a flow of implementing the service processing NF side in the service processing method in the foregoing embodiment, in which case the network device 80 may act as the service processing NF:
the processor 81 sends a registration request carrying attribute information to the NRF for registration, the attribute information including a range indication for indicating the traffic in at least two traffic ranges that the network device 80 can handle, and a priority indication for indicating the processing priority of the network device 80 for the traffic in each traffic range indicated by the range indication relative to the other network devices 80.
The processor 81 receives a service within a target service range allocated by the service NF, wherein the target service range is a service range to which a service to be processed on the service NF belongs, and the target service range is one of at least two service ranges;
The processor 81 processes traffic within the target traffic range.
In some examples of this embodiment, after the processor 81 determines that the network device 80 is not suitable for continuing to serve as the primary NF corresponding to the target service range, it may send change information to the NRF, and at the same time continue to process the service in the other service range, where the change information is used to characterize that the network device 80 is not suitable for continuing to serve as the primary NF corresponding to the target service range.
The processor 81 may read the second service processing program, compile and execute a flow for realizing the NRF side in the service processing method in the foregoing embodiment, in which case the network device 80 may function as the NRF:
The processor 81 receives a discovery request carrying a target service range sent by the service NF, where the target service range is a service range to which a service to be processed on the service NF belongs;
The processor 81 selects at least two target service processes NF capable of processing the service in the target service range from the service processes NF according to the attribute information of each service process NF stored in the network device 80, wherein the target service processes NF include a primary NF and a standby NF having a processing priority for the service in the target service range lower than that of the primary NF, and the primary NF is capable of processing the service in at least two service ranges.
After determining the target service processes NF, the processor 81 may send NF indication information to the service NF, where the NF indication information is used to indicate the target service processes NF and the processing priority of each target service process NF on the service within the target service range.
In some examples of the present embodiment, the processor 81 may acquire attribute information of the service processing NF by receiving a registration request transmitted by the service processing NF. After acquiring the attribute information of the service processing NF, the processor 81 may store the attribute information of the service processing NF.
In some examples, the processor 81 may further receive change information sent by the primary NF in the target service processing NF, where the change information is used to characterize that the primary NF is not suitable for continuing to serve as the primary NF corresponding to the target service range; subsequently, the processor 81 indicates to the service NF that the service NF determines a new primary NF to be used for replacing the primary NF from the standby NFs through the NF change notification.
The processor 81 may also read the third service processing program, compile and execute a flow of implementing the service NF side in the service processing method in the foregoing embodiment, in which case the network device 80 may serve as the service NF:
The processor 81 sends a discovery request carrying a target service range to the NRF, and then the processor 81 receives NF indication information sent by the NRF, where the NF indication information is used to indicate at least two target service treatments NF capable of treating the service in the target service range and a treatment priority of each target service treatment NF for the service in the target service range. The processor 81 may assign services within the target service range to the active NF according to the NF indication information, so that the active NF processes the assigned services.
In some scenarios of this embodiment, the processor 81 also receives an NF change notification sent by the NRF, where the NF change notification can characterize that the original primary NF is not suitable for continuing to serve as the primary NF corresponding to the target service range;
The processor 81 determines a new primary NF for replacing the original primary NF from the backup NF according to the NF change notification, and assigns the new primary NF with the service within the target service range, so that the new primary NF processes the assigned service.
In some examples of this embodiment, the number of target traffic treatments NF is 2; or the number of the target business processing NFs is more than 2, one is the primary NF, and the rest is the standby NF.
If the number of the target service processing NF is more than 2, one of the target service processing NF is a main NF, and the rest of the target service processing NF is a standby NF; the manner in which the processor 81 determines the new primary NF for replacing the original primary NF from the backup NF according to the NF change notification may be to select the new primary NF with the highest priority from the backup NF as the new primary NF for replacing the original primary NF; alternatively, a new primary NF may be randomly selected from the standby NFs as a replacement for the original primary NF.
The present embodiment also provides a service processing system, where the service processing system includes a service NF, an NRF, and a plurality of service processing NF, where the service NF is a network device, such as an AMF or an SMF, that executes a third service processing procedure by the processor 81; NRF is a network device in which the processor 81 executes a second service processing program; the service processing NF may be a network device, such as UDM or AMF, where the processor 81 executes the first service processing procedure.
The network device provided in this embodiment proposes a concept of a service scope, so when the service NF discovers the target service processing NF, the service NF will take the target service scope as a basis, so as to find a primary NF capable of processing the target service scope and a standby NF capable of disaster recovery for processing the service in the target service scope, where the relationship between the primary NF and the standby NF does not directly bind two devices strictly one-to-one, but only exists when the service NF corresponds to the target service scope, so that the solution removes the stiff binding relationship between NFs, and the disaster recovery mechanism becomes more flexible naturally.
And when the active-standby switching is performed, all the services on the active NF are not required to be migrated, so that the flexibility of a disaster recovery mechanism can be improved, the service migration efficiency during the active-standby switching can be improved, the user perception is reduced, and the service experience of a user is improved.
In the present application, the technical features of the various embodiments may be combined for use in one embodiment without conflict.
In addition, it should be apparent to those skilled in the art that the service processing method, system, network device and storage medium provided in the embodiments of the present invention may be applied not only to a currently existing communication system but also to any future communication system.
It will be apparent to one skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the apparatus disclosed above may be implemented as software (which may be implemented in program code executable by a computing apparatus), firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media), for execution by a computing device, and in some cases, the steps shown or described may be performed in a different order than that described herein. The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media. Therefore, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a further detailed description of embodiments of the invention in connection with the specific embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.

Claims (12)

1. A business processing method, comprising:
The service processing NF sends a registration request carrying attribute information to a network storage function NRF for registration, wherein the attribute information comprises range indication and priority indication, the range indication is used for indicating services in at least two service ranges which can be processed by the service processing NF, and the priority indication is used for indicating the processing priority of the service processing NF relative to other service processing NF on the services in each service range indicated by the range indication;
The service processing NF receives a service within a target service range allocated by the service NF, wherein the target service range is a service range to which a service to be processed on the service NF belongs, the target service range is one of the at least two service ranges, the service processing NF is a primary NF determined by the service NF according to NF indication information sent by the NRF, the NF indication information is used for indicating at least two target service processing NFs capable of processing the service in the target service range and processing priorities of each target service processing NF on the service in the target service range, and the target service processing NF comprises the primary NF and a standby NF lower than the primary NF in the processing priority of the service in the target service range;
And the service processing NF processes the service in the target service range.
2. The service processing method as claimed in claim 1, wherein after the service NF processes the service within the target service range, further comprising:
the service processing NF determines that the service processing NF is not suitable for continuing to serve as the main NF corresponding to the target service range;
And the service processing NF sends change information to the NRF, and simultaneously continues to process the service in other service ranges, wherein the change information is used for representing that the service processing NF is not suitable for continuing to serve as the main NF corresponding to the target service range.
3.A business processing method, comprising:
The NRF receives a discovery request which is sent by a service NF and carries a target service range, wherein the target service range is a service range to which a service to be processed on the service NF belongs;
the NRF selects at least two target business processes NF capable of processing businesses in the target business scope from the business processes NF according to the attribute information of each business process NF stored by the NRF, wherein the target business processes NF comprise a main NF and a standby NF which has lower processing priority than the main NF for the businesses in the target business scope, and the main NF can process the businesses in at least two business scopes; the attribute information comprises a range indication and a priority indication, wherein the range indication is used for indicating a service range which can be processed by the service processing NF, and the priority indication is used for indicating the processing priority of the service processing NF to the service in each service range indicated by the range indication relative to other service processing NF;
the NRF sends NF indication information to the service NF, wherein the NF indication information is used for indicating the target service processing NF and the processing priority of each target service processing NF on the service within the target service range.
4. The service processing method as claimed in claim 3, wherein before the NRF receives the discovery request carrying the target service range sent by the service NF, the method further comprises:
The NRF receives a registration request sent by a service processing NF, wherein the registration request carries attribute information of the service processing NF;
and the NRF stores the attribute information of the service processing NF.
5. A service processing method as claimed in claim 3, characterized in that the range indication indicates the range of services that the service processing NF can handle by any one of a subscriber number segment, a subscriber group, a network slice and a context.
6. The service processing method according to any one of claims 3 to 5, wherein after the NRF sends NF indication information to the service NF, further comprising:
The NRF receives change information sent by a main NF in the target service processing NF, wherein the change information is used for representing that the main NF is not suitable for continuing to serve as the main NF corresponding to the target service range;
and the NRF indicates the service NF to the service NF through the NF change notice, and determines a new primary NF used for replacing the primary NF from the standby NF.
7. A business processing method, comprising:
the service NF sends a discovery request carrying a target service range to the NRF, wherein the target service range is a service range to which a service to be processed on the service NF belongs;
The service NF receives NF indication information sent by the NRF, the NF indication information is used for indicating at least two target service processing NFs capable of processing the service in the target service range and processing priorities of each target service processing NF on the service in the target service range, the target service processing NF comprises a main NF and a standby NF which is lower than the main NF in processing priority of the service in the target service range, and the main NF can process the service in at least two service ranges simultaneously; the target business process NF is selected from the business processes NF by the NRF according to the stored attribute information of the business processes NF; the attribute information comprises a range indication and a priority indication, wherein the range indication is used for indicating a service range which can be processed by the service processing NF, and the priority indication is used for indicating the processing priority of the service processing NF to the service in each service range indicated by the range indication relative to other service processing NF;
And the service NF dispatches the service in the target service range to the master NF, so that the master NF processes the dispatched service.
8. The service processing method of claim 7, wherein after the service NF assigns the service within the target service range to the primary NF, further comprising:
The service NF receives an NF change notification sent by the NRF, wherein the NF change notification can characterize that the original primary NF is not suitable for continuing to serve as the primary NF corresponding to the target service range;
the service NF determines a new primary NF used for replacing the original primary NF from the standby NF according to the NF change notice;
the service NF dispatches the service in the target service range to the new main NF, so that the new main NF processes the dispatched service.
9. The service processing method according to claim 7 or 8, wherein the number of target service processes NF is 2; or, the number of the target service processing NFs is greater than 2, one of the target service processing NFs is a primary NF, and the rest is a standby NF.
10. The service processing method according to claim 9, wherein if the number of the target service processing NFs is greater than 2, one of the target service processing NFs is a primary NF, and the rest is a standby NF; the service NF determining, from the standby NF according to the NF change notification, a new primary NF for replacing the original primary NF includes:
the service NF selects one with highest priority from the standby NF as a new primary NF for replacing the original primary NF;
Or alternatively, the first and second heat exchangers may be,
The service NF randomly selects a new primary NF as a substitute for the original primary NF from the standby NF.
11. A network device comprising a processor, a memory, and a communication bus;
the communication bus is used for realizing connection communication between the processor and the memory;
The processor is configured to execute a first service processing program stored in the memory, so as to implement the steps of the service processing method according to claim 1 or 2;
Or, the processor is configured to execute a second service processing program stored in the memory, so as to implement the steps of the service processing method according to any one of claims 3 to 6;
Or, the processor is configured to execute a third service processing program stored in the memory, so as to implement the steps of the service processing method according to any one of claims 7-10.
12. A storage medium having stored therein at least one of a first service processing program, a second service processing program and a third service processing program, the first service processing program being executable by one or more processors to implement the steps of the service processing method of claim 1 or 2; said second service processing program being executable by one or more processors to implement the steps of the service processing method according to any of claims 3-6; said third service processing program being executable by one or more processors to implement the steps of the service processing method as claimed in any of claims 7-10.
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