| 摘要 |
A mobile communications system is described in which a mobile communications device can register with a Macro RAN base station or with a home base station when in range of the home base station. The home base station may be an open access mode, a closed access mode or a hybrid access mode home base station. The home base station sends a gateway device information about its access mode so that unnecessary access control is avoided. This information may be signalled to the gateway device by the presence or absence of an optional element of a registration request or by the presence or absence of entries within a mandatory element within the registration request.
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