| 摘要 |
<p>The invention relates to a signaling method for GSM/GPRS communication systems. The status of a core interface between two core subnetworks is measured in the core network (S 2 ), preferably through a keep-alive mechanism (S 1 ). A status indication message is then sent to the radio network (S 3 ). In this way, the BSS becomes aware of possible interface problems and failures, and can take appropriate actions, such as changing the network operating settings related to the NOM and/or allocated channel types (S 4 ). The invention enables secure operation of NOM-I systems with P-channels irrespective of the Gs interface status.</p> |
