| 摘要 |
A method and a computer system for analyzing the performance and for carrying out the dimensioning of at least one network portion of a telecommunication system, in which the communication channels requested by the mobile terminals are allocated and in which the corresponding communications are sustained on high-bit- rate and/or low-bit-rate traffic channels, characterized by the fact of comprising the further steps of providing a configuration of resources in said network portion and of providing the characteristics of said communication-channel requests. Said configuration of resources comprises the possibility of setting a feature that imposes the switching from a high-bit-rate traffic channel to a low-bit-rate traffic channel for at least one ongoing communication in said network portion when, for the case of a new call-request, said network portion is congested. Said configuration of resources comprises the setting of a threshold value such that if the occupation level of said resources is higher than or equal to said threshold value, a new call-request is preferentially allocated on a low-bit-rate traffic channel. Said characteristics of said communication-channel requests comprise the capability, of said mobile terminals, to sustain calls on high-bit-rate and/or on low-bit- rate traffic channels. Said telecommunication system comprises a cellular telecommunication system in compliance with the GSM standard.
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