Beschränkung der Übertragung von Inhalten an umherstreifende mobile Einheiten

摘要

A provider code is added to a request signal transmitted to a contents server (CP1) from a mobile unit (MS) by a mobile communication network (GSM). A border switching station (CMMS) adds a roaming flag to the request signal, and forwards the request signal to a gateway unit (GW). The gateway unit (GW) converts the provider code contained in the request signal into the country code by referring to the code conversation table, and transmits a HTTP request to the contents server (CP1) after adding the country code and roaming identification information to HTTP header. When the contents server (CP1) receives the above-mentioned HTTP request, the contents server (CP1) determines whether the requested contents are allowed to be transmitted abroad by referring to a transmission table. When the transmission of the requested contents is not permitted, the contents server (CP1) transmits an error notification to the mobile unit (MS) to notify that transmission is not permitted.