Overload control method of urgent call and preempted preference call
A priority call and emergency call technology, applied in the direction of transmission control/balance, selection device, radio/inductive link selection arrangement, etc., can solve problems such as waste of resources, system overload, and inability to guarantee fan load, etc., to prevent forward If the power is too high, the effect of avoiding the waste of system resources
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[0027] Figure 1 shows a flow chart of resource release of the present invention.
[0028] When emergency calls and preemptive priority calls of push-to-talk group calls are accessed, the resource control module allocates required resources according to the non-overloaded process, specifically calling the database interface to allocate resources.
[0029] After the resource allocation is successful, when the database in the resource control module finds that the power is overloaded under the carrier frequency, it calculates the threshold of the number of resources that need to be released under the current overload situation, and searches for the resources that can be released. The method of calculating the threshold of the number of resources that need to be released under the current overload situation is: calculate the power occupied by the existing group call, use the number of users in the group as the weight, and calculate the saving if the regrouped call is released The amou...
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