| 摘要 |
The invention relates to a location update procedure in a mobile communications system (150) having at least one first communications service domain (100) and at least one second communications service domain (110). The mobile subscriber (140) is allowed to register in said first communications service domain. A location update request is received at a network element (170) of the communications system, and a subscription restriction information is received at this network element, said subscription restriction information indicating, whether a roaming restriction for a roaming into the second communications serice domain applies for the mobile subscriber. The subscription restriction information is evaluated, and the location update procedure is performed depending on the evaluation. The invention relates further to a corresponding network element (170), home subscriber data register (160), user equipment (140) and computer program.
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