It is based on the type of resource voice over eye tweet taking over the type of connection of call

摘要

It has the base station node (28) to which telecommunications network offers the plural radio transmission resource groups (52) for communicating with the portable machine (30) inside the cell (40). It is the non hopping radio transmission resource group which includes the resource which at least one radio transmission resource group (521) of the cell can convey BCCH, and the other radio transmission resource group (522 52n) of that cell is the hopping radio transmission resource group. Schedule it does the base station control control equipment (26) node, the call which includes the voice over eye tweet packet flow on the non hopping radio transmission resource group, according to the capacity of the non hopping radio transmission resource group. That non hopping radio transmission resource group for additional call of the portable machine when it is capacity insufficient, the base station control control equipment (26) node that call requires that it changes to circuit switching connection from voice over eye tweet packet flow.