Patent ID: 8611241

Claim:
In a process for operating a cellular land mobile network in case of an overload by releasing transmission channel elements of a transmission channel of the cellular land mobile network currently being used for telecommunication or data transmission in order to be made available for a higher priority application or call and the transmission channel can be used at the same time by several applications, each of the channel elements providing for an application or a call a certain transmission capacity defined as a number of channel elements, the improvement of selecting the channel elements to be released by the steps of: determining the number of channel elements required for the higher priority application or call and computing therefrom the number of channel elements to be released by subtracting the number of currently free channel elements from the determined number of channel elements required by the higher priority application or call, if a number of channel elements currently occupied by a single application or call is less than the computed number of channel elements to be released for the higher priority application or call, grouping of currently occupied channel elements together such that the group of channel elements is at least equal to the computed number of channel elements to be released for the higher priority application or call, computing an efficiency factor for all channel elements currently occupied by a single application or call and for all groups of channel elements having a total number of channel elements at least equal to the computed number of channel elements to be released for the higher priority application or call as a quotient of the number of applications and calls currently using the channel elements or group of channel elements divided by the number of channel elements occupied by the application or call by the group of channel elements, and releasing the channel elements or group of channel elements with the lowest efficiency factor.