| 摘要 |
A method for serving visitor subscribers in a mobile communication system has been disclosed. The method, which is performed by a virtual visitor subsystem, VSS, included in the mobile communication system, comprises the following steps:detecting a roaming event on an MSISDN of a mobile station, MS, operating in the mobile communication system; determining a mobile network operator in the mobile communication system, having an HPLMN which covers a geographic area of the MS, to be a visitor mobile network operator of the MS; receiving a visitor IMSI from the visitor mobile network operator; assigning the visitor IMSI to the MSISDN of the MS;transmitting the visitor IMSI to the MS; intercepting an authentication initiation towards the visitor mobile network operator; authenticating the MS towards a home mobile network operator of the MS; and activating a visitor subscription identified by the visitor IMSI based on an authentication response received from the home mobile network operator. A method for serving visitor subscribers in a mobile communication system has been disclosed. The method, which is performed by a virtual visitor subsystem, VSS, included in the mobile communication system, comprises the following steps:detecting a roaming event on an MSISDN of a mobile station, MS, operating in the mobile communication system; determining a mobile network operator in the mobile communication system, having an HPLMN which covers a geographic area of the MS, to be a visitor mobile network operator of the MS; receiving a visitor IMSI from the visitor mobile network operator; assigning the visitor IMSI to the MSISDN of the MS;transmitting the visitor IMSI to the MS; intercepting an authentication initiation towards the visitor mobile network operator; authenticating the MS towards a home mobile network operator of the MS; and activating a visitor subscription identified by the visitor IMSI based on an authentication response received from the home mobile network operator. The invention relates to a steel cord (30) comprising cylindrical layers, said cord including: an inner layer (C1) formed by M wires, an intermediate layer (C2) formed by N wires helically wound around the inner layer (C1), and an outer layer (C3) formed by P wires helically wound around the intermediate layer (C2), in which the inter-wire distance D2 of the wires of the intermediate layer (C2) is greater than or equal to 25 µm and the inter-wire distance D3 of the wires of the outer layer (C3) is greater than or equal to 25 µm. |
