| 摘要 |
A communication system is described in which a handover procedure is provided to allow a mobile device 3 to transfer from a home base station, HeNB, 11 connected to a core network 8 via a home base station gateway, HeNB-GW, 15 to another base station not coupled via the home base station gateway. An extension to the handover procedure is provided in which the home base station gateway is informed of the transfer of the mobile device, allowing context and resources assigned to the mobile device at the base station gateway to be released. Suitable for an X2 based handover procedure between at least one home base station HNB (femto cell or pico cell). An X2 user equipment context release indication message is sent from a target base station to a source base station to indicate that handover has been completed, wherein a further indication is sent to the home base station gateway indicating that the mobile device is no longer coupled to the base station. A mobile telephone registration module is also disclosed which is configured to identify a path switch request from a base station, associated with a communication link transferred to said base station, and assign a context to a mobile device associated with the communication link. |
