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A method and device for session management function SMF load balancing

A session management and load balancing technology, applied in the communication field, can solve the problems of waste of equipment resources, inability to dynamically start and close internal modules, lack of monitoring and management of internal module resource allocation and module resource monitoring, etc., to achieve the effect of improving resource utilization

Active Publication Date: 2021-08-17
IPLOOK NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

SMF contains multiple service modules such as Sm (session management module) and Sc (service module). Traditional SMF does not have the ability to monitor and manage internal module resource allocation and module resource monitoring, and cannot dynamically start and close internal modules, which will lead to waste of equipment resources.

Method used

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  • A method and device for session management function SMF load balancing
  • A method and device for session management function SMF load balancing
  • A method and device for session management function SMF load balancing

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Embodiment Construction

[0046] The technical solution in this application will be described below with reference to the accompanying drawings.

[0047] figure 1 is a schematic diagram of the architecture of an embodiment of the present application,

[0048] Such as figure 1 As shown in the figure, the description of the main network elements:

[0049] NRF (Network Repository Function): network storage function

[0050] AMF (Access and Mobility Management Function): access and mobility management function

[0051] SMF (Session Management Function): session management function

[0052] Su(Service unit): Service unit equipped with a virtual system

[0053] Sm (SessionManager): a service program responsible for session session management

[0054] Sc (SessionConnection): a service program responsible for connecting various services

[0055] N11 is the AMF and SMF communication interface defined in the 5G standard

[0056] Specifically, an SMF includes a Su group, a Su group includes multiple Sus, ...

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Abstract

This application provides a method for SMF load balancing, the method includes: sending a resource request message to each Su in the Su group that is currently in the working state, the Su group includes N Sus that are currently in the working state, and the monitoring software soft is configured on all On the device where the j-th Su among the N Sus is located; receive the resource information sent by the i-th Su; determine the current process load Threshold_smf of the SMF according to the resource information sent by the Su; make Threshold_smf and the load threshold range of the SMF Compare, when Threshold_smf is higher than the threshold upper limit of the SMF, indicate that the standby Su in the Su group enters the working state; when Threshold_smf is lower than the threshold lower limit of the SMF, set the Su with the smallest load among the N Sus as the standby Su , and transfer the data in the standby Su to the takeover Su with the penultimate load among the N Sus; when the Threshold_smf is within the threshold range of the SMF, soft initiates session registration to the NRF.

Description

technical field [0001] The present application relates to the communication field, and more specifically, relates to a session management function (sessionManagement Function, SMF) load balancing method and device thereof. Background technique [0002] In the 5G core network, SMF is a functional unit of 5G service-based architecture, which is mainly responsible for session management. According to 3GPP TS 29.502-g00, SMF is mainly responsible for interacting with separate data planes, creating, updating and deleting PDU sessions, and managing Session context with UPF. [0003] The UE and the gNB use the NGAP (Next Generation Application Protocol) protocol to transfer NAS (NonAccess Stratum) messages, and request a new session via the N1 or N2 interface. AMF receives these requests and handles all tasks related to access and mobility management, and forwards session management requirements to SMF through N11 interface. The AMF determines which SMF is selected to process the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
CPCH04L67/14H04L67/1001
Inventor 陈峻伟周远长
Owner IPLOOK NETWORKS CO LTD