WO2019024679A1 - Procédé de mise à niveau de fonction de réseau, et entité de gestion de mise à niveau - Google Patents

Procédé de mise à niveau de fonction de réseau, et entité de gestion de mise à niveau Download PDF

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Publication number
WO2019024679A1
WO2019024679A1 PCT/CN2018/095968 CN2018095968W WO2019024679A1 WO 2019024679 A1 WO2019024679 A1 WO 2019024679A1 CN 2018095968 W CN2018095968 W CN 2018095968W WO 2019024679 A1 WO2019024679 A1 WO 2019024679A1
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Prior art keywords
instance
upgraded
test
management entity
upgrade
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PCT/CN2018/095968
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English (en)
Chinese (zh)
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武绍芸
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华为技术有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H04L41/082—Configuration setting characterised by the conditions triggering a change of settings the condition being updates or upgrades of network functionality

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for upgrading a network function and an upgrade management entity.
  • Service-Oriented Architecture is a component model that links different functional units of an application (called services) through well-defined interfaces and contracts between these services.
  • the requirements between services are loosely coupled.
  • the interface is defined in a neutral manner and should be independent of the hardware platform, operating system, and programming language that implements the service. This allows services built into a wide variety of systems to interact in a unified and versatile manner.
  • service interaction process in the prior art, after the service goes online, it first needs to register to the service registration center.
  • a service consumer service
  • the consumer service queries the service registry or subscribes to information that satisfies the required producer service.
  • a 5G network consists of multiple Network Functions (NFs), which can be called services. Most network functions use a service interface (such as Nnef, Nausf, etc.).
  • NFs Network Functions
  • Most network functions use a service interface (such as Nnef, Nausf, etc.).
  • the foregoing plurality of NFs include an Access and Mobility Management Function (AMF), a Session Management Function (SMF), a User plane function (UPF), and a Policy Function (PCF). ), Network Exposure Function (NEF) and NF Repository Function (NRF).
  • the network also includes Unified Data Management (UDM) entities and Authentication Server Functions (AUSF).
  • UDM Unified Data Management
  • AUSF Authentication Server Functions
  • NRF network service discovery
  • the "service” may refer to an NF, or may refer to a collection of several smaller granularity functional divisions (NF-services) within the NF, that is, an NF consists of multiple NF-services, and the concept is only The scope is different.
  • the embodiment of the invention provides a method for upgrading a network function and an upgrade management entity, which improves the flexibility and agility of the upgrade.
  • a method for upgrading a network function is provided.
  • a plurality of NF instances of the NF are in the network, and the upgrade management entity sends a first notification message to the first NF instance to be upgraded, where the first notification message is used to indicate that the first NF instance to be upgraded stops.
  • the upgrade management entity determines that the first NF instance to be upgraded has stopped serving; the upgrade management entity sends a second notification message to the first NF instance to be upgraded, where the second notification message is used for
  • the first NF instance to be upgraded is upgraded to obtain the upgraded first NF instance; the upgrade management entity obtains the test result of the upgraded first NF instance; and the upgraded first NF instance is
  • the test result is that the test is successful, and the upgrade management entity determines to continue to specify the second NF instance to be upgraded for upgrade; or the test result of the upgraded first NF instance is that the test is unsuccessful, and the upgrade management entity determines that The upgraded first NF instance performs an upgrade rollback.
  • the NF instances to be upgraded may be upgraded first, for example, each NF instance to be upgraded is upgraded one by one, and the NF is upgraded.
  • the service is offline and the NF instance is tested. According to the test result, the high-version NF instance of the NF and the low-level NF instance coexist.
  • This upgrade method is more flexible and more agile.
  • the first NF instance to be upgraded is registered to the NRF; the first notification message is used to indicate that the first NF instance to be upgraded is deregistered from the NRF;
  • the upgrade management entity receives a third notification message from the first NF instance to be upgraded, where the third notification message is used to indicate that the first NF instance to be upgraded has been deregistered from the NRF.
  • the first NF instance to be upgraded is deregistered from the NRF, so that the first NF instance to be upgraded is stopped.
  • the upgrade management entity sends a fourth notification to the first NF instance to be upgraded.
  • the fourth notification message is used to indicate that the first NF instance to be upgrade migrates the carried service to the third NF instance; and the upgrade management entity receives the fifth from the first NF instance to be upgraded.
  • a notification message where the fifth notification message is used to indicate that the first NF instance to be upgraded has completed migrating the carried service to the third NF instance.
  • the services carried on the NF instance to be upgraded are smoothly transferred to other peer NF instances to complete the upgrade process.
  • the upgrade management entity sends a test policy to the test collaboration NF, where the test policy includes at least one of testing a user scope, a test procedure, a test startup manner, and a test exit condition;
  • the management entity receives the test result of the upgraded first NF instance from the test collaboration NF.
  • the upgrade management entity sends a test policy to the test collaboration NF, so that the test collaboration NF tests the upgraded NF instance according to the test policy.
  • the upgrade management entity determines that the test trigger condition is met; the upgrade management entity reports the The test cooperation NF sends a sixth notification message, which is used to indicate that the test cooperates with the NF to initiate the test.
  • the upgrade management entity controls the test cooperation NF to perform testing, which facilitates unified management of test initiation.
  • the NF instance to be upgraded is a service instance or a micro service instance.
  • grayscale upgrades of different granularities can be achieved, resulting in better flexibility and agility.
  • the embodiment of the present invention provides an upgrade management entity, which can implement the functions performed by the upgrade management entity in the foregoing method design, and the functions can be implemented by hardware or by executing corresponding software through hardware.
  • the hardware or software includes one or more modules corresponding to the above functions.
  • the upgrade management entity includes a processor and a communication interface configured to support the upgrade management entity to perform the corresponding functions in the above methods.
  • the communication interface is used to support communication between the upgrade management entity and the test coordination NF or other NF.
  • the upgrade management entity can also include a memory for coupling with the processor that holds the necessary program instructions and data for the upgrade management entity.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the upgrade management entity, including a program designed to execute the above first aspect.
  • embodiments of the present invention provide a computer program product comprising instructions that, when executed by a computer, cause the computer to perform the functions performed by the upgrade management entity in the method design of the first aspect above.
  • FIG. 1 is a schematic diagram of communication in an upgrade preparation phase according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of communication in an upgrade test phase according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of communication method for upgrading a network function according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an upgrade management entity according to an embodiment of the present disclosure.
  • the “service” may refer to an NF, or may refer to a set of smaller granular functional partitions (NF-services) in the NF, that is, one NF is composed of multiple NF-services. This concept is only different in scope, and there is no substantive difference to this scheme. The following is a unified description using NF.
  • Phase One prior to the upgrade, this phase is an existing implementation, at which point NF is registered to the NRF in a lower version (pre-upgrade version).
  • the registration information of the NRF includes the version number.
  • Each NF can carry the specific version number for registration, but the NF may not carry the specific version number.
  • the NF sends a registration request message to the NRF, and after registering the NF, the NRF sends a registration response message to the NF to complete the service registration.
  • the first NF (ie, the service consumer) sends a discovery request message to the NRF, and the NRF processes and sends a discovery response message to the first NF, and the first NF selects the second NF according to the discovery response message (ie, the service producer)
  • the first NF communicates with the second NF through the service interface.
  • FIG. 1 is a schematic diagram of communication in a stage 2 upgrade preparation phase according to an embodiment of the present invention.
  • the upgrade preparation phase the following processes are mainly included:
  • step 101 the upgrade management entity performs an upgrade plan.
  • the upgrade plan contains several parts:
  • NF instance to be upgraded a type of NF may contain multiple instances), and may include an Internet Protocol (IP) address corresponding to the NF.
  • IP Internet Protocol
  • the pre-upgrade version is mainly used for verification, and the upgraded version is used for specific upgrades.
  • step 102 the upgrade management entity notifies the NF to be upgraded to go offline.
  • the offline line means that the NF to be upgraded will register itself from the NRF, so that other services can no longer find the NF to be upgraded, and at the same time, the published service interface is no longer processed, but a certain error code is fed back.
  • step 103 the NF to be upgraded is ready for offline preparation.
  • the NF to be upgraded Before initiating registration with the NRF, the NF to be upgraded may have some local execution actions, such as releasing system resources and the like.
  • the NF in the communication system is difficult to be completely stateless, so there are still some connection information resources.
  • this step can usually be omitted, because subsequent business migrations need to maintain the connection with the upstream and downstream as well as the user.
  • step 104 the NF to be upgraded initiates a registration request to the NRF.
  • step 105 the NRF performs deregistration processing on the upgrade NF.
  • Step 106 The NRF sends a registration response to the NF to be upgraded.
  • Step 107 The upgraded NF sends the offline completion to the upgrade management entity.
  • Step 108 Upgrade the management entity to perform service migration planning.
  • Service migration means that the services carried on the NF to be upgraded are smoothly transferred to other peer NFs to achieve complete loss of the upgrade process.
  • Step 109 The upgrade management entity notifies the NF to be upgraded to perform service migration.
  • Step 1011 The NF to be upgraded sends a migration completion notification message to the upgrade management entity.
  • step 1012 the management entity is upgraded to perform test planning.
  • Test process Specify the business process involved in the test. It is related to specific upgrade objects and business environment. For example, for the upgrade of the SMF (Session Management NF) entity, the signaling process of the test can be specified as "bearer creation", that is, when the "bearer creation” type signaling is sent or received, the test is started.
  • SMF Session Management NF
  • Test the startup method Specify the test startup method. For example, manual triggering, automatic triggering, timing triggering, etc.
  • the test collaboration NF will immediately try to find the high version of the upgrade object NF, and if found, conduct a business test.
  • Test the exit conditions Specify the conditions for the end of the test. For example, test duration, test signaling number, etc., after the export conditions are met, the test results can be reported.
  • Step 1013 The upgrade management entity sends a test policy notification message to the test collaboration NF.
  • test strategy contains the content described in the previous step. If multiple test collaboration NFs are involved, then all test collaboration NFs need to be notified.
  • Step 1014 testing the collaborative NF save test data and test strategy.
  • Step 1015 The test collaboration NF sends a test policy response message to the upgrade management entity.
  • FIG. 2 is a schematic diagram of communication in the phase four upgrade test phase.
  • the following processes are mainly included:
  • step 201 the upgrade management entity performs a test trigger judgment.
  • test startup mode in the test strategy is manual, the test can be triggered manually.
  • test startup mode in the test strategy is timing
  • the test can be triggered after the timer arrives
  • test startup mode in the test strategy is automatic, it is handled by the test collaboration NF itself, and this step is not required.
  • Step 202 The upgrade management entity sends a startup test request to the test collaboration NF.
  • step 203 the test cooperative NF performs test condition judgment.
  • the test collaboration NF determines whether to test the upgraded NF according to the saved test strategy (including the test user scope and test flow, etc.).
  • test cooperative NF starts testing only when the IMSI is a user of XXXX, and when the bearer is created, when the signaling process that meets the user scope and process requirements is received, the test is started.
  • Step 204 The test collaboration NF initiates a service discovery request message to the NRF, carrying a high version.
  • Step 205 The NRF sends a service discovery response message to the test cooperation NF.
  • Step 206 Test the collaborative NF to perform business process interaction with the upgraded NF.
  • This step is a general signaling process, but the test coordination NF needs to identify the "in test” flag in the local context and state machine for subsequent collection and evaluation of the test results.
  • step 207 the test cooperates with the NF to record the test result, and determines whether the test exit condition is satisfied.
  • the test After completing the signaling interaction with the upgraded NF (identified according to the context and the flag of the state machine), the test cooperates with the NF to record the result of the signaling interaction (eg, success, failure, partial success, and corresponding detailed cause value and Context).
  • the result of the signaling interaction eg, success, failure, partial success, and corresponding detailed cause value and Context.
  • test exit conditions are judged (for example, duration, number of signaling, etc.), and if the export conditions are met, the results are reported.
  • the test collaboration NF sends all the test results of the local record to the upgrade management entity.
  • step 209 the upgrade management entity summarizes the test report and performs analysis.
  • the upgrade management entity reports the test report, including one or more test reports sent by the test cooperation NF, and the status information of the upgrade NF collected by the management entity itself, for summary analysis.
  • Phase 6 Upgrade rollback.
  • the specific NF rollback action is performed on the NF to be rolled back. After the NF is rolled back, it may be determined by manual or preset policies whether to continue retrying the upgrade of the NF, or skipping the NF to perform other NF upgrades first.
  • Phase 7 The upgrade is complete. There are several reasons for entering the upgrade completion phase: all specified NF instances have been upgraded; manual decisions are made for any reason (even if only some of the NF instances have been upgraded, or none of the NF instances have completed the upgrade).
  • the method for upgrading the network function provides an upgrade mode for the operator to meet the 5G service framework.
  • the upgrade process can take into account the requirements of the service smoothing, business process, and other reliable smoothing classes.
  • There is no specific requirement for the service registration method (assuming that the NRF is implemented by the Domain Name System (DNS) method.
  • DNS Domain Name System
  • Most DNS does not have a complex service selection function, and only provides a simple DNS registration query function).
  • FIG. 3 is a schematic diagram of a communication method for upgrading a network function according to an embodiment of the present invention.
  • the scenario may be a NF instance to be upgraded, where the method includes:
  • Step 301 The upgrade management entity sends a first notification message to the first NF instance to be upgraded, where the first notification message is used to indicate that the first NF instance to be upgrade stops serving.
  • the upgrade management entity may determine the first NF instance to be upgraded.
  • the first NF instance can represent one NF instance, and can also represent multiple NF instances. That is, when there are multiple NF instances of the NF to be upgraded in the network, you can upgrade one of the NF instances to be upgraded, or upgrade the NF instances to be upgraded. For example, when there are five NF instances of the NF to be upgraded in the network, you can upgrade one of the NF instances to be upgraded, or upgrade the two NF instances to be upgraded. First upgrade 3 or 4 NF instances to be upgraded.
  • Step 302 The first NF instance to be upgrade stops the service according to the first notification message.
  • the first NF instance to be upgraded is offline (de-registered) from the NRF according to the first notification message.
  • Step 303 The upgrade management entity determines that the first NF instance to be upgraded has stopped serving.
  • the upgrade management entity sends a fourth notification message to the first NF instance to be upgraded, where the fourth notification message is used to indicate that the first NF instance to be upgraded is
  • the bearer service is migrated to the third NF instance
  • the upgrade management entity receives a fifth notification message from the first NF instance to be upgraded, where the fifth notification message is used to indicate that the first NF instance to be upgraded has been
  • the migration of the carried service to the third NF instance is completed.
  • Step 305 The first NF instance to be upgraded is upgraded according to the second notification message to obtain the upgraded first NF instance.
  • Step 306 The upgrade management entity obtains a test result of the upgraded first NF instance.
  • the upgraded first NF instance may be tested by the test cooperation NF, and the test result is sent to the upgrade management entity, or the manual test may be manually performed, and the test result is manually input to the upgrade management entity.
  • the upgrade management entity sends a test policy to the test collaboration NF, the test policy including at least one of testing a user scope, a test flow, a test launch mode, and a test exit condition; the upgrade management entity The test result of the upgraded first NF instance is received from the test cooperation NF.
  • the upgrade management entity determines that the test trigger condition is met; the upgrade management entity sends a sixth notification message to the test cooperation NF, where the sixth notification message is used to indicate the test collaboration NF start test.
  • the test collaborative network function NF receives a test policy from an upgrade management entity, the test strategy including at least one of testing a user scope, a test flow, a test launch mode, and a test exit condition;
  • the test policy tests the upgraded first NF instance to obtain the test result of the upgraded first NF instance.
  • the test collaboration NF sends the upgraded first NF instance test result to the upgrade management entity.
  • the test result of the upgraded first NF instance is that the test is unsuccessful, and the upgrade management entity determines to perform an upgrade rollback on the upgraded first NF instance.
  • the NF instance to be upgraded is a service instance or a micro service instance.
  • the NF instances to be upgraded may be upgraded first, for example, each NF instance to be upgraded is upgraded one by one, and the NF is upgraded.
  • the service is offline and the NF instance is tested. According to the test result, the high-version NF instance of the NF and the low-level NF instance coexist.
  • This upgrade method is more flexible and more agile.
  • each network element such as an upgrade management entity, a test coordination NF, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the processing module 402 can be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 403 can be a communication interface, a transceiver, a transceiver circuit, etc., wherein the communication interface is a collective name and can include one or more interfaces.
  • the storage module 401 can be a memory.
  • the upgrade management entity 500 includes a processor 502, a communication interface 503, and a memory 501.
  • the upgrade management entity 500 may also include a bus 504.
  • the communication interface 503, the processor 502, and the memory 501 may be connected to each other through a bus 504.
  • the bus 504 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (abbreviated). EISA) bus and so on.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • the bus 504 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 5, but it does not mean that there is only one bus or one type of bus.
  • the steps of the method or algorithm described in connection with the disclosure of the embodiments of the present invention may be implemented in a hardware manner, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

Les modes de réalisation de la présente invention concernent un procédé de mise à niveau d'une fonction de réseau, et une entité de gestion de mise à niveau. Le procédé est applicable à une fonction de réseau (NF) dont une pluralité d'instances doit être mise à niveau. Le procédé comprend les étapes suivantes : une entité de gestion de mise à niveau transmet un premier message de notification à une première instance de NF devant être mise à niveau, le premier message de notification étant utilisé pour commander à la première instance de NF devant être mise à niveau d'arrêter un service ; déterminer que la première instance de NF devant être mise à niveau a arrêté un service ; transmettre un second message de notification à la première instance de NF devant être mise à niveau, le second message de notification étant utilisé pour commander à la première instance de NF devant être mise à niveau d'exécuter une mise à niveau, de sorte à obtenir une première instance de NF mise à niveau ; obtenir un résultat de test de la première instance de NF mise à niveau ; et si le résultat indique que le test de la première instance de NF mise à niveau a réussi, déterminer qu'une seconde instance de NF devant être mise à niveau est ensuite spécifiée pour une mise à niveau, ou si le résultat indique que le test de la première instance de NF mise à niveau n'a pas réussi, déterminer que la première instance de NF mise à niveau doit revenir à un état précédant la mise à niveau. Les modes de réalisation de la présente invention procurent un niveau élevé de flexibilité et de réponse.
PCT/CN2018/095968 2017-08-02 2018-07-17 Procédé de mise à niveau de fonction de réseau, et entité de gestion de mise à niveau WO2019024679A1 (fr)

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CN113424608A (zh) * 2019-02-18 2021-09-21 华为技术有限公司 用于为网络提供外部服务的实体
CN113424608B (zh) * 2019-02-18 2023-05-16 华为技术有限公司 用于为网络提供外部服务的实体
US12010642B2 (en) 2019-02-18 2024-06-11 Huawei Technologies Co., Ltd. Entities for providing an external service to a network
EP4246907A4 (fr) * 2020-11-25 2024-04-10 ZTE Corporation Procédé et dispositif de mise à niveau de tranche de réseau

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