Overload control method for CDMA communication system

Abstract

The method includes steps: detecting over loading and informing system, based on type of service, determining overload level and adjusting step length for controlling over loading, setting up timer of overload protection cycle and timer of overload extended control; if timer of overload protection cycle not being overtime, not processing informing message of over loading, when receiving message of relieving over loading, then starting up recovery mechanism of over loading; if timer of overload protection cycle being overtime but timer of overload extended control not being overtime, when receiving informing message of over loading, then increasing the setting of downward control quantity, when receiving message of relieving over loading, then starting up recovery mechanism; if timer of overload extended control being overtime, then decreasing the setting of downward control quantity; program flow treats all other states, till service controlling quantity of system is recovered.

Description

Technical field [0001] The invention relates to the overload control of a mobile communication system, in particular to an overload control method of a code division multiple access mobile communication system. Background technique [0002] Like other communication systems, in the CDMA mobile communication system, in order to ensure the long-term stable operation of the system, especially under high traffic conditions, overload control measures must be taken to achieve maximum system overload. Limit guarantees to provide services to users. The method described in the present invention is a flexible overload control method related to call processing in the CDMA base station system BSS. [0003] In the CDMA communication system, the call establishment of a call will involve multiple network entities in the entire mobile communication network, and all involved network entities need to work together. In a successful call establishment process, the mobile station MS, the base transcei...

AI Technical Summary

Problems solved by technology

[0009] In the current technology, there is a single step in the control of business volume, the overload protection period timer, and the overload expansion control timer are too long, resulting in a slow response frequency of the recovery process, and the large vibration of the system overload control on the control line, resulting in a ping-pong effect. Overload business processing does not have the disadvantages of distinguishing business types. The purpose of the present invention is to provide a system overload control method to achieve flexible control of system overload, that is, to quickly start overload control when the system is overloaded, so that the system is free In the working state, when the system is released from the overload state, it can quickly start to respond and recover. Under the condition of system overload, the control system load fluctuates slightly above and below the overload threshold, avoiding the ping-pong effect, and distinguishing business types for system overload business processing

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