CN113852981A - Fault processing method, network system and medium for NF - Google Patents

Fault processing method, network system and medium for NF Download PDF

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Publication number
CN113852981A
CN113852981A CN202010599453.6A CN202010599453A CN113852981A CN 113852981 A CN113852981 A CN 113852981A CN 202010599453 A CN202010599453 A CN 202010599453A CN 113852981 A CN113852981 A CN 113852981A
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discovered
fault
capability indication
fault processing
nrf
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刘俊羿
刘建华
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ZTE Corp
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ZTE Corp
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Priority to CN202010599453.6A priority Critical patent/CN113852981A/en
Priority to PCT/CN2021/100132 priority patent/WO2022001654A1/en
Publication of CN113852981A publication Critical patent/CN113852981A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention discloses a fault processing method, a network system and a medium for NF. The fault processing method for NF comprises the following steps that: when the discovered NF is detected to have a fault, the user session related to the discovered NF is subjected to fault processing based on the NF fault processing capability indication corresponding to the discovered NF, which is acquired from the network warehousing function NRF, so that the situation that the peripheral NF can perform fault processing based on different NF fault processing capability indications of the discovered NF after the NF in the 5G network system has a fault can be ensured, and the processing requirement of differentiated NF faults in the network system can be met.

Description

Fault processing method, network system and medium for NF
Technical Field
The embodiment of the invention relates to the technical field of 5G mobile communication networks, in particular to a fault processing method, a network system and a medium for NF.
Background
The 5G mobile communication network is a next-generation mobile communication technology, and the decoupling of network functions and hardware systems is realized by applying a software defined network and a network function virtualization technology. Higher requirements are put forward for the disaster tolerance capability of a Network system, particularly the disaster tolerance capability of NF (Network Function, Chinese name: Network Function, similar to 4G Network element), and the lossless user session is ensured as much as possible.
However, the 5G network is an ad hoc network, NFs can dynamically join or leave the 5G network at any time, the current 5G standard does not provide an explicit processing flow for the disaster recovery processing of NFs such as SMF (Session Management Function), PCF (Policy Control Function), UDM (Unified Data Management), and the like, and the disaster recovery capabilities of NFs of different operators of different equipment vendors are not uniform, and the processing cannot be well coordinated for the network system. Therefore, how to coordinate the working relationship between the failed NF and the surrounding NFs to process the NF failure becomes an urgent problem to be solved when the NF fails.
Disclosure of Invention
One or more embodiments of the present disclosure provide a fault handling method, a network system, and a medium for NFs, which can ensure that, after an NF fault in a 5G network system fails, peripheral NFs can perform fault handling based on NF fault handling capability indications of different discovered NFs, and meet a requirement for processing a differentiated NF fault in the network system.
To solve the above technical problem, one or more embodiments of the present specification are implemented as follows:
in a first aspect, a method for handling a failure of a network function NF is provided, where the method performed on the NF side requesting discovery includes: upon detecting a failure of a discovered NF, failing a user session with respect to the discovered NF based on an NF failure handling capability indication corresponding to the discovered NF obtained from an NRF.
In a second aspect, a fault handling method for NF is proposed, the steps performed on the NRF side comprising: the method comprises the steps of responding to a registration request sent by a discovered NF, registering NF fault processing capacity indication corresponding to the discovered NF so that the NF which requests to discover discovers the NF fault processing capacity indication, wherein the NF fault processing capacity indication comprises the fault processing indication of the NF which requests to discover when the discovered NF fails to process the discovered NF.
In a third aspect, a method for handling a fault of an NF is provided, where the steps performed on the discovered NF side include: sending registration application information to a network warehousing function (NRF), wherein the registration application information at least comprises NF fault processing capability indication for discovering the NF fault processing capability indication by the NF requesting to discover, and the NF fault processing capability indication comprises a fault processing indication of the NF requesting to discover when the discovered NF breaks down on a user session related to the discovered NF.
In a fourth aspect, a network system is proposed, the network system comprising at least a discovery-requesting NF, the discovery-requesting NF performing the fault handling method as described above.
In a fifth aspect, a network system is proposed, the network system comprising at least an NRF, the NRF performing the fault handling method as described above.
In a sixth aspect, a network system is presented, the network system comprising at least a discovered NF, the discovered NF performing the fault handling method as described above.
In a seventh aspect, a storage medium for a computer-readable storage is proposed, the storage medium storing one or more programs which, when executed by one or more processors, implement the steps of the fault handling method for a network function NF as described above.
As can be seen from the technical solutions provided by one or more embodiments of the present specification, when a discovered NF is detected to be faulty by a NF that requests to be discovered, the fault processing method for an NF according to an embodiment of the present invention performs fault processing on a user session related to the discovered NF based on an NF fault processing capability indication corresponding to the discovered NF, which is acquired from an NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
Drawings
In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, reference will now be made briefly to the attached drawings, which are needed in the description of one or more embodiments or prior art, and it should be apparent that the drawings in the description below are only some of the embodiments described in the specification, and that other drawings may be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a schematic step diagram of a fault handling method for NF according to an embodiment of the present invention.
Fig. 2 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 3 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 4 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 5 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 6 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 7 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 8 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 9 is a schematic step diagram of another fault handling method for NF according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of a step related to three-party interaction in a further fault handling method for NF according to an embodiment of the present invention.
Fig. 11 is a schematic structural diagram of a network system according to an embodiment of the present invention.
Fig. 12 is a schematic structural diagram of another network system according to an embodiment of the present invention.
Fig. 13 is a schematic structural diagram of another network system according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions in the present specification better understood, the technical solutions in one or more embodiments of the present specification will be clearly and completely described below with reference to the accompanying drawings in one or more embodiments of the present specification, and it is obvious that the one or more embodiments described are only a part of the embodiments of the present specification, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from one or more of the embodiments described herein without making any inventive step shall fall within the scope of protection of this document.
The fault processing method for the NF provided by the embodiment of the invention respectively adopts the NF fault processing capability indication corresponding to the discovered NF to process the fault of the user session related to the discovered NF when different discovered NFs have faults, so that the peripheral NF can perform differential NF fault processing based on the different NF fault processing capabilities of the NF which has faults after the NF in the 5G network system has faults, and the processing requirements of the differential NF faults of the 5G network system are met. The fault handling method for NF and the respective steps thereof provided in this specification will be described in detail below.
It should be noted that the fault handling method for NF provided by the embodiment of the present invention is applicable to a 5G network system. The NF is similar to the 4G network element, the disaster recovery capability of the NF relates to how the NF is backed up, the disaster recovery is matched with the corresponding NF for backup, if the NF is hot backup, the NF fault processing capability of the NF is reselected, and if the NF is cold backup, the NF fault processing capability of the NF is a release session. In addition, the ambient NF referred to in this application may be a dry NF other than the failed NF where the user session exists.
Example one
Fig. 1 is a schematic step diagram of a fault handling method for a network function NF according to an embodiment of the present invention. It can be understood that the fault processing method for NFs provided by the embodiments of the present invention is applicable to processing a user session related to a faulty NF in a 5G network system, where the 5G network system includes a discovered NF, a discovery request NF, and an NRF, where the discovery request NF and the discovered NF belong to a relative concept, and the same NF may be used as both the discovery request NF and another NF. Therefore, the failed NF can be regarded as the discovered NF itself, and the surrounding NFs can be regarded as the NFs requesting to be discovered, so that the failed NF can be distinguished from the surrounding NFs. The fault processing method for NF comprises the following steps that:
step 100: when it is detected that the discovered NF is malfunctioning, a user session regarding the discovered NF is malfunctioning based on an NF malfunction-handling capability indication corresponding to the discovered NF acquired from the NRF.
The discovered NF needs to send application registration information to the network storage function NRF so as to apply for registration at the NRF, wherein the application registration information comprises NF fault processing capability indication of the discovered NF, and subsequently, if the discovered NF fails, the NF requesting for discovery can perform fault processing on the user session of the discovered NF based on the NF fault processing capability indication.
Each NF may have a failure, and the application registration information sent by each discovered NF to the NRF includes an NF failure handling capability indication of the discovered NF, so the failed NF may be described by the discovered NF. The NF requested to be found is then appropriate for the description of the surrounding NFs. Normally, the request discovery may periodically detect whether the discovered NF is failed, and when the discovered NF is detected to be failed, the user session related to the discovered NF may be failed based on the NF failure handling capability indication corresponding to the discovered NF, which is previously acquired from the NRF. The NRF informs the NF requested to be discovered as long as the NRF acquires the NF fault processing capability indication corresponding to the discovered NF, dynamically informs the peripheral NF in real time, and ensures that the peripheral NF can correspondingly process the service related to the discovered NF after the discovered NF has a fault based on a correct strategy. And different discovered NF corresponds to different NF fault processing capability indications, so that peripheral NF can be ensured to carry out service processing based on the corresponding NF fault processing capability indication after the NF of the 5G network system fails.
The 5G network is an ad hoc network, and NFs can dynamically join or leave the network at any time, and it is basically infeasible to adopt a static configuration mode under the condition that the change is frequent or the change is not notified to the peripheral NFs in real time. The processing requirement of the differential NF in the 5G network system when the fault occurs is met. The embodiment of the invention can execute different NF fault processing when different NF faults occur, and meets the requirement of differential fault recovery processing in a network.
Referring to fig. 2, in some embodiments, embodiments of the invention provide a fault handling method for NF, step 100: the method for fault processing of the user session of the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF and acquired from the NRF specifically comprises the following steps:
step 101: the NF fault processing capability indication at least comprises a reselection NF, when an accessed user session needs to send a message to the discovered NF, other NF is selected to replace the discovered NF to continue sending the message;
the method comprises the steps that an application registration message sent by a discovered NF when applying registration to an NRF for the first time comprises an NF fault processing capability indication, peripheral NF acquires relevant information of the discovered NF when applying to the NRF to discover the discovered NF and carries the NF fault processing capability indication, and when the discovered NF has a fault, the discovered NF is requested to perform subsequent processing on a user session related to the discovered NF according to the NF fault processing capability indication.
If the NF fault processing capability indication comprises the reselection of the NF, namely the discovered NF is requested, namely other NF is selected to replace the discovered NF to transmit the subsequent message when the peripheral NF needs to transmit the message to the NF with the fault, thereby meeting the processing requirement of the differentiated NF fault in the network system. The other NF may be one of the surrounding NFs, excluding the NF that requested discovery itself.
Referring to fig. 3, in some embodiments, embodiments of the invention provide a fault handling method for NF, step 100: the method for fault processing of the user session of the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF and acquired from the NRF specifically comprises the following steps:
step 102: the NF fault handling capability indication comprises at least a release session, which is released when a message needs to be sent to the discovered NF for an accessed user session.
The request-to-discover NF, that is, the peripheral NF carries the NF fault handling capability indication when discovering the discovered NF to the NRF, and the peripheral NF can perform subsequent processing according to the corresponding NF fault handling capability indication when the discovered NF has a fault.
The NF fault handling capability indication may include a release session, when the discovered NF fails, the peripheral NF directly releases the user session to end the current user session when the accessed user session needs to send a message to the failed NF, and subsequently the user session is initiated again by the user terminal.
Referring to fig. 4, in some embodiments, step 100: when a discovered NF is detected to have a fault, before fault processing is performed on a user session of the discovered NF based on an NF fault processing capability indication corresponding to the discovered NF, which is acquired from an NRF, the fault processing method provided by the embodiment of the invention comprises the following steps:
step 110: based on the information of the discovered NF sent by the NRF, an NF failure handling capability indication corresponding to the discovered NF is obtained, and the NF failure handling capability indication includes a failure handling indication of the discovered NF for a user session related to the discovered NF, which is requested by the discovered NF when the discovered NF fails.
The discovered NF carries an NF fault processing capability indication when applying for registration to the NRF, the discovered NF, namely the peripheral NF carries the NF fault processing capability indication when discovering the discovered NF by the NRF, and the peripheral NF carries out fault processing on the user session related to the discovered NF according to the corresponding NF fault processing capability indication when the discovered NF fails.
When a peripheral NF requests the NRF to find a found NF, the NRF returns information of the found NF to the peripheral NF, and the information of the found NF includes an NF fault handling capability indication of the found NF. So that the measures taken for the discovered NF to fail can be prepared before the discovered NF fails.
Referring to FIG. 5, in some embodiments, step 110: after acquiring the NF fault handling capability indication corresponding to the discovered NF based on the discovered NF information sent by the NRF, the fault handling method provided in the embodiment of the present invention further includes:
step 120: subscribing to a discovered NF's failure handling capability change notification to the NRF;
when the discovered NF changes in processing capability, the discovered NF sends an update message to the NRF to update the original NF processing capability indication, and requests the discovered NF, that is, the peripheral NFs, to obtain the latest NF processing capability indication of the discovered NF by subscribing to the discovered NF processing capability change notification.
It can be seen that the embodiment of the present invention provides a dynamic method for notifying the discovered NF of the fault handling capability in real time to the peripheral NF, so as to ensure that the peripheral NF can perform fault handling on the user session of the relevant discovered NF after the discovered NF fails based on a correct policy.
Step 130: receiving a fault handling capability change notification sent by the NRF when the fault handling capability of the discovered NF is changed, wherein the fault handling capability change notification comprises a new NF fault handling capability indication;
therefore, when the fault handling capability of the discovered NF is changed, for example, from the original reselection NF to the release session, or after the original release session is changed to the reselection NF, the discovered NF is requested to receive a fault handling capability change notification sent by the NRF, where the fault handling capability change notification includes a new NF fault handling capability indication.
Step 140: and updating the original NF fault handling capacity indication into a new NF fault handling capacity indication.
The NF that requested discovery, that is, the peripheral NFs subscribe to the NRF for a notification of change in the fault handling capability of the discovered NF. When the fault handling capability of the discovered NF is changed, the NRF actively transmits a fault handling capability change notification to the peripheral NFs, the fault handling capability change notification carrying a new NF fault handling capability indication. And replacing the original NF fault processing capability indication by the NF which requests to be discovered by adopting the new NF fault processing capability indication. It can be seen that when the NF fault handling capability of the discovered NF changes, the NF which requests discovery is notified to the peripheral NF in real time by using a dynamic method, so as to ensure that the peripheral NF which requests discovery can perform fault handling based on the latest NF fault handling capability indication.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
Example two
Referring to fig. 6, in the fault handling method for NF according to the embodiment of the present invention, the steps executed on the NRF side include:
step 200: the discovered NF is registered in response to application registration information sent by the discovered NF, wherein the application registration information comprises NF fault processing capability indication, so that the NF requesting to be discovered acquires the NF fault processing capability indication, and the NF fault processing capability indication comprises fault processing indication of the NF requesting to be discovered on the discovered NF when the discovered NF is in fault.
When the discovered NF applies for registration with the NRF, NF fault processing capability indication is carried in the application registration information, and the NF fault processing capability indication comprises fault processing indication of the discovered NF on a user session related to the discovered NF, which is requested by the discovered NF when the discovered NF fails.
When a peripheral NF requesting discovery requests an NRF to discover the discovered NF, the NRF returns information of the discovered NF to the NF requesting discovery, and the information includes an NF failure handling capability indication of the discovered NF.
Referring to fig. 7, in some embodiments, step 200: after registering the discovered NF, the fault handling method provided in the embodiment of the present invention further includes:
step 210: updating the original NF fault handling capacity indication into a new NF fault handling capacity indication in response to an update message sent by the discovered NF, wherein the update message comprises the new NF fault handling capacity indication;
when the fault handling capability of the discovered NF is changed, for example, the original reselection NF is changed into a release session, the discovered NF sends an update message to the NRF, the update message includes a new NF fault handling capability indication, and the NRF notifies the NF requesting discovery of the new NF fault handling capability indication.
Step 220: and sending a fault processing capability change notification to the NF requesting to be discovered, wherein the fault processing capability change notification comprises a new NF fault processing capability indication so that the NF requesting to be discovered updates the original NF fault processing capability indication into the new NF fault processing capability indication.
And after the NF which requests to be discovered receives the fault processing capacity change notice, replacing the original NF fault processing capacity indication by the new NF fault processing capacity indication included in the fault processing capacity change notice.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
EXAMPLE III
Referring to fig. 8, in the fault handling method for a network function NF according to the embodiment of the present invention, the steps executed on the discovered NF side include:
step 300: and sending registration application information to a network warehousing function (NRF), wherein the registration application information at least comprises NF fault processing capability indication for requesting the discovered NF to discover the NF fault processing capability indication, and the NF fault processing capability indication comprises a fault processing indication of the discovered NF for requesting the discovered NF to perform user session related to the discovered NF when the discovered NF is in fault.
When the discovered NF sends application registration information to the NRF, the application registration information carries NF fault processing capability indication, and the NF fault processing capability indication is intended to indicate that peripheral NF processes the discovered NF on an accessed user session and at least comprises a session release or a reselection NF after the discovered NF fails.
Therefore, when the discovered NF discovers the discovered NF to the NRF, the NF failure handling capability indication carried by the discovered NF is simultaneously obtained, and when the discovered NF fails, the peripheral NF performs subsequent failure handling on the user session related to the discovered NF according to the NF failure handling capability indication, such as either releasing the current service for session end or reselecting another NF to replace the failed NF to continue the current service.
Referring to fig. 9, in some embodiments, step 300: after sending the registration application information to the NRF, the fault processing method provided in the embodiment of the present invention further includes:
step 310: when the discovered NF fault processing capability is changed, an update message is sent to the NRF so that the NRF obtains a new NF fault processing capability indication, wherein the update message comprises the new NF fault processing capability indication for the discovered NF to obtain the new NF fault processing capability indication.
When the fault handling capacity of the discovered NF is changed, an update message is sent to the NRF so that the NRF updates the original NF fault handling capacity indication to a new NF fault handling capacity indication, and the peripheral NF acquires the latest NF fault handling capacity indication of the discovered NF by subscribing to a fault handling capacity change notification.
Referring to fig. 10, an information processing mechanism of a relevant three party is provided for the fault handling method for NF according to the embodiment of the present invention. Specifically, the discovered NF may carry an NF fault handling capability indicator when applying for registration with the NRF for the first time, and may also send an update message to the NRF when the fault handling capability is changed, so that the NRF may obtain the NF fault handling capability indicator of the discovered NF in time. The NF that is requested to be found, that is, the peripheral NFs request the NRF to find that the discovered NF is, the NRF returns an indication of the fault handling capability of the discovered NF. The NRF may also notify the peripheral NF requesting discovery when receiving an update message sent by the discovered NF, and the NF requesting discovery may obtain the NF fault handling capability indication corresponding to the discovered NF in time. When the peripheral NF requesting discovery detects that the discovered NF has a fault, the user session related to the discovered NF is subjected to fault processing according to the latest NF fault processing capability instruction.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
Example four
Referring to fig. 11, a network system 10 according to an embodiment of the present invention includes at least a NF100 requesting discovery, where the NF requesting discovery performs the fault handling method described above. The following steps are specifically executed:
step 100: when it is detected that the discovered NF is malfunctioning, a user session regarding the discovered NF is malfunctioning based on an NF malfunction-handling capability indication corresponding to the discovered NF acquired from the NRF.
The discovered NF needs to send application registration information to the NRF for registration application at the NRF, where the application registration information includes an NF fault handling capability indication of the discovered NF, and subsequently, if the discovered NF fails, the discovering NF is requested to perform fault handling on the user session of the discovered NF based on the NF fault handling capability indication.
Each NF may have a failure, and the application registration information sent by each discovered NF to the NRF includes an NF failure handling capability indication of the discovered NF, so the failed NF may be described by the discovered NF. The NF requested to be found is then appropriate for the description of the surrounding NFs. Normally, the request discovery may periodically detect whether the discovered NF is failed, and when the discovered NF is detected to be failed, the user session related to the discovered NF may be failed based on the NF failure handling capability indication corresponding to the discovered NF, which is previously acquired from the NRF. The NRF informs the NF requested to be discovered as long as the NRF acquires the NF fault processing capability indication corresponding to the discovered NF, dynamically informs the peripheral NF in real time, and ensures that the peripheral NF can correspondingly process the service related to the discovered NF after the discovered NF has a fault based on a correct strategy. And different discovered NF corresponds to different NF fault processing capability indications, so that peripheral NF can be ensured to carry out service processing based on the corresponding NF fault processing capability indication after the NF of the 5G network system fails.
The 5G network is an ad hoc network, and NFs can dynamically join or leave the network at any time, and it is basically infeasible to adopt a static configuration mode under the condition that the change is frequent or the change is not notified to the peripheral NFs in real time. The processing requirement of the differential NF in the 5G network system when the fault occurs is met. The embodiment of the invention can execute different NF fault processing when different NF faults occur, and meets the requirement of differential fault recovery processing in a network.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
EXAMPLE five
Referring to fig. 12, in the network system 20 provided in the embodiment of the present invention, the network system 20 at least includes an NRF200, and the NRF200 executes the fault handling method as described above. The following steps are specifically executed:
step 200: the discovered NF is registered in response to application registration information sent by the discovered NF, wherein the application registration information comprises NF fault processing capability indication, so that the NF requesting to be discovered acquires the NF fault processing capability indication, and the NF fault processing capability indication comprises fault processing indication of the NF requesting to be discovered on the discovered NF when the discovered NF is in fault.
When the discovered NF applies for registration with the NRF, NF fault processing capability indication is carried in the application registration information, and the NF fault processing capability indication comprises fault processing indication of the discovered NF on a user session related to the discovered NF, which is requested by the discovered NF when the discovered NF fails.
When a peripheral NF requesting discovery requests an NRF to discover the discovered NF, the NRF returns information of the discovered NF to the NF requesting discovery, and the information includes an NF failure handling capability indication of the discovered NF.
Referring to fig. 7, in some embodiments, step 200: after registering the discovered NF, the fault handling method provided in the embodiment of the present invention further includes:
step 210: updating the original NF fault handling capacity indication into a new NF fault handling capacity indication in response to an update message sent by the discovered NF, wherein the update message comprises the new NF fault handling capacity indication;
when the fault handling capability of the discovered NF is changed, for example, the original reselection NF is changed into a release session, the discovered NF sends an update message to the NRF, the update message includes a new NF fault handling capability indication, and the NRF notifies the NF requesting discovery of the new NF fault handling capability indication.
Step 220: and sending a fault processing capability change notification to the NF requesting to be discovered, wherein the fault processing capability change notification comprises a new NF fault processing capability indication so that the NF requesting to be discovered updates the original NF fault processing capability indication into the new NF fault processing capability indication.
And after the NF which requests to be discovered receives the fault processing capacity change notice, replacing the original NF fault processing capacity indication by the new NF fault processing capacity indication included in the fault processing capacity change notice.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
EXAMPLE six
Referring to fig. 13, a network system 30 according to an embodiment of the present invention is provided, where the network system 30 at least includes a discovered NF300, and the discovered NF300 performs the fault handling method as described above. The following steps are specifically executed:
step 300: and sending registration application information to a network warehousing function (NRF), wherein the registration application information at least comprises NF fault processing capability indication for requesting the discovered NF to discover the NF fault processing capability indication, and the NF fault processing capability indication comprises a fault processing indication of the discovered NF for requesting the discovered NF to perform user session related to the discovered NF when the discovered NF is in fault.
When the discovered NF sends application registration information to the NRF, the application registration information carries NF fault processing capability indication, and the NF fault processing capability indication is intended to indicate that peripheral NF processes the discovered NF on an accessed user session and at least comprises a session release or a reselection NF after the discovered NF fails.
Therefore, when the discovered NF discovers the discovered NF to the NRF, the NF failure handling capability indication carried by the discovered NF is simultaneously obtained, and when the discovered NF fails, the peripheral NF performs subsequent failure handling on the user session related to the discovered NF according to the NF failure handling capability indication, such as either releasing the current service for session end or reselecting another NF to replace the failed NF to continue the current service.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
EXAMPLE seven
A storage medium for a computer-readable storage according to an embodiment of the present invention stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of the optical transport network alarm processing method shown in fig. 1 to 10. The following steps may be specifically performed:
step 100: when it is detected that the discovered NF is malfunctioning, a user session regarding the discovered NF is malfunctioning based on an NF malfunction-handling capability indication corresponding to the discovered NF acquired from the NRF.
The discovered NF needs to send application registration information to the NRF for registration application at the NRF, where the application registration information includes an NF fault handling capability indication of the discovered NF, and subsequently, if the discovered NF fails, the discovering NF is requested to perform fault handling on the user session of the discovered NF based on the NF fault handling capability indication.
Each NF may have a failure, and the application registration information sent by each discovered NF to the NRF includes an NF failure handling capability indication of the discovered NF, so the failed NF may be described by the discovered NF. The NF requested to be found is then appropriate for the description of the surrounding NFs. Normally, the request discovery may periodically detect whether the discovered NF is failed, and when the discovered NF is detected to be failed, the user session related to the discovered NF may be failed based on the NF failure handling capability indication corresponding to the discovered NF, which is previously acquired from the NRF. The NRF informs the NF requested to be discovered as long as the NRF acquires the NF fault processing capability indication corresponding to the discovered NF, dynamically informs the peripheral NF in real time, and ensures that the peripheral NF can correspondingly process the service related to the discovered NF after the discovered NF has a fault based on a correct strategy. And different discovered NF corresponds to different NF fault processing capability indications, so that peripheral NF can be ensured to carry out service processing based on the corresponding NF fault processing capability indication after the NF of the 5G network system fails.
The 5G network is an ad hoc network, and NFs can dynamically join or leave the network at any time, and it is basically infeasible to adopt a static configuration mode under the condition that the change is frequent or the change is not notified to the peripheral NFs in real time. The processing requirement of the differential NF in the 5G network system when the fault occurs is met. The embodiment of the invention can execute different NF fault processing when different NF faults occur, and meets the requirement of differential fault recovery processing in a network.
As can be seen from the above analysis, when the NF that is requested to be discovered detects that the discovered NF fails, the fault processing method for NFs according to the embodiment of the present invention performs fault processing on the user session related to the discovered NF based on the NF fault processing capability indication corresponding to the discovered NF acquired from the NRF. The NF fault processing capability indication comprises a processing indication of a user session of the discovered NF, the NF which is requested to be discovered can carry out fault processing based on the NF fault processing capability indication, the situation that the peripheral NF can carry out fault processing based on the NF fault processing capability indication of different discovered NF after the NF in the 5G network system fails can be ensured, and different other NFs can be selected to replace the original NF which fails, so that the processing requirement of differentiated NF faults in the network system can be met. In addition, when the NF fault processing capacity of the discovered NF is changed, the NF fault processing method adopts a dynamic method to notify the NF which is requested to be discovered to the surrounding NF in real time, and ensures that the NF which is requested to be discovered by the surrounding NF can process the fault based on the latest NF fault processing capacity indication.
In short, the above description is only a preferred embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present specification shall be included in the protection scope of the present specification.
The system, apparatus, module or unit illustrated in one or more of the above embodiments may be implemented by a computer chip or an entity, or by an article of manufacture with a certain functionality. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
Computer-readable storage media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.

Claims (12)

1. A fault handling method for a Network Function (NF) comprises the following steps that:
when a discovered NF is detected to be out of order, the user session related to the discovered NF is subjected to fault processing based on the NF fault processing capability indication corresponding to the discovered NF, which is acquired from a network storage function NRF.
2. The failure handling method according to claim 1, wherein failing over the user session related to the discovered NF based on an NF failure handling capability indication corresponding to the discovered NF, which is obtained from an NRF, specifically comprises:
the NF fault processing capability indication at least comprises a reselection NF, when an accessed user session needs to send a message to the discovered NF, other NF is selected to replace the discovered NF to continue sending the message; alternatively, the first and second electrodes may be,
the NF fault handling capability indication at least comprises a release session, and the user session is released when the accessed user session needs to send a message to the discovered NF.
3. The failover method of claim 1 or 2, prior to failing over a user session with the discovered NF based on an NF failover capability indication corresponding to the discovered NF obtained from an NRF, the method comprising:
acquiring NF fault handling capability indication corresponding to the discovered NF based on the information of the discovered NF sent by the NRF, wherein the NF fault handling capability indication comprises fault handling indication of the NF requesting to be discovered on a user session related to the discovered NF when the discovered NF is in fault.
4. The fault handling method of claim 3, after obtaining an NF fault handling capability indication corresponding to the discovered NF based on the information of the discovered NF sent by the NRF, the method further comprising:
subscribing to NRF for failure handling capability change notifications for the discovered NF;
receiving a fault handling capability change notification sent by the NRF when a fault handling capability of the discovered NF changes, the fault handling capability change notification including the new NF fault handling capability indication;
and updating the original NF fault handling capacity indication into the new NF fault handling capacity indication.
5. A fault handling method for NF, the steps performed at the NRF side comprising:
registering the discovered NF in response to application registration information sent by the discovered NF, wherein the application registration information comprises NF fault processing capability indication so that the NF requesting discovery acquires the NF fault processing capability indication, and the NF fault processing capability indication comprises fault processing indication of the NF requesting discovery to the discovered NF when the discovered NF is in fault.
6. The fault handling method of claim 5, after registering the discovered NF, the method further comprising:
updating the original NF fault handling capability indication to a new NF fault handling capability indication in response to an update message sent by the discovered NF, wherein the update message comprises the new NF fault handling capability indication;
and sending a fault processing capability change notification to the NF requesting to be discovered, wherein the fault processing capability change notification comprises the new NF fault processing capability indication so that the NF requesting to be discovered updates the original NF fault processing capability indication into the new NF fault processing capability indication.
7. A fault handling method for NF, the steps executed at the NF side to be discovered include:
sending registration application information to an NRF, wherein the registration application information at least comprises NF fault processing capability indication for discovering the NF fault processing capability indication by the NF requesting to discover, and the NF fault processing capability indication comprises fault processing indication of the NF requesting to discover when the discovered NF breaks down on a user session related to the discovered NF.
8. The fault handling method of claim 2, after sending registration application information to the NRF, the method further comprising:
when the fault handling capability of the discovered NF is changed, sending an update message to the NRF so that the NRF acquires the NF fault handling capability indication, wherein the update message comprises a new NF fault handling capability indication for the NF which requests to discover the new NF fault handling capability indication.
9. A network system comprising at least a discovery-requesting NF that performs the fault handling method of any one of claims 1 through 4.
10. A network system comprising at least an NRF that performs the fault handling method of claim 5 or 6.
11. A network system comprising at least a discovered NF that performs the fault handling method of claim 7 or 8.
12. A storage medium for a computer readable storage, the storage medium storing one or more programs which, when executed by one or more processors, implement the steps of the fault handling method for NF according to any one of claims 1 to 8.
CN202010599453.6A 2020-06-28 2020-06-28 Fault processing method, network system and medium for NF Pending CN113852981A (en)

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