Load balancing method, device and system of s-cscf pool group

Abstract

The present invention relates to a load balancing method, device and system for S-CSCF pool groups. Aiming at the problems of low accuracy and efficiency during load balancing in the past, the load balancing method for the S-CSCF pool group of the present invention includes the following steps: based on the load value of each S-CSCF device in the S-CSCF pool group and the S-CSCF pool ‑ Calculate the load variance from the average load value of the CSCF equipment; determine whether the load variance is above a predetermined threshold, and if it is above the predetermined threshold, it is judged that the load is unbalanced; when it is judged that the load is unbalanced, the load value is filtered from the S‑CSCF pool group The S‑CSCF equipment with the largest deviation from the average load value is used as the load adjustment equipment; the correlation coefficient between the load influencing factors and the load of the selected load adjustment equipment is calculated; and the absolute value of the calculated correlation coefficient is greater than the predetermined value, and the absolute value Load adjustment is carried out according to the load influencing factor with the largest value. In this way, the automatic adjustment capability of the network in the face of sudden shocks can be enhanced, and the optimal management and control of the S‑CSCF pool group can be realized.

Description

technical field [0001] The invention relates to the field of data services. In particular, it relates to a load balancing method, device and system for S-CSCF pool groups. Background technique [0002] VoLTE (Voice over LTE, IMS voice service) core network equipment includes, for example, SBC (Session Border Controller), I-CSCF (Interrogating Call Session Control Function, inquiry call session control function) equipment, S-CSCF (Serving Call Session Control Function, service call session control function) equipment, TAS (Telephony Application Server, telephony application server), etc., because the above equipment is very important in the mobile network, they all adopt multiple sets of equipment pools (PooL) for disaster recovery and backup. After the devices are connected, they will be evenly distributed among the devices in the pool group according to the pre-set round selection parameters. The feature of the I\S-CSCF pool group is that multiple I\S-CSCFs serve the same...

AI Technical Summary

Problems solved by technology

Because the I-CSCF equipment selects the fixed mode set by the S-CSCF equipment after obtaining the capability set from the HSS, it only recognizes the user accessing the S-CSCF pool group, and does not perceive the user leaving the S-CSCF pool group, thus causing The specific number of users registered in real time and user behavior are quite different, especially the carrying capacity of the equipment in the pool group is different, which can easily lead to a high load on individual equipment in the pool group

[0005] That is, the capacity of devices in the current S-CSCF pool group does not support dynamic load balancing, but relies on static configuration. When load imbalance occurs, users can only be manually migrated by repeatedly modifying the distribution ratio and weight of each device. way to achieve the relative balance of the load, the efficiency and accuracy are very low

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