Position managing apparatus, packet gateway apparatus, mobile communication system, mobile station apparatus and mobile communication method

[0094]First, description will be given for a first embodiment of a mobile communication system to which the present invention is applied with reference to drawings.

[0095][1.1 Outline of Mobile Communication System]

[0096]FIG. 1 is a view for describing an outline of a mobile communication system 1 in the present embodiment. As shown in this drawing, the mobile communication system 1 is configured by a core network 3 and a home network 5, and the core network 3 and the home network 5 are interconnected through a broadband access network 7. The broadband access network 7 is a wired access network that realizes broadband communication and is constructed by, for example, ADSL, optical fiber or the like. However, without limitation thereto, it may a wireless access network such as WiMAX.

[0097]In the core network 3, an MME (Mobility Management Entity) 10, a GW 20, an SGW (Serving GW) 30 and a PGW (Packet data network GW) 40 are arranged.

[0098]The MME 10 is an entity that performs signaling an

[0372]Subsequently, description will be given for a second embodiment to which the present invention is applied. In the present embodiment, since a network configuration and an apparatus configuration are similar to those of the above-described first embodiment except for the configuration of the HeNB, detailed description thereof except for the configuration of the HeNB will be omitted.

[0373][2.1 Apparatus Configuration]

[0374]First, brief description will be given for an apparatus configuration with drawings. As described above, description will be given for an HeNB 72 serving as a different character from that of the first embodiment in the present embodiment.

[0375][2.1.1 Configuration of HeNB]

[0376]FIG. 29 is a view showing an example of the configuration of the HeNB 72 in the present embodiment, which is different from the configuration of the HeNB 70 in the first embodiment in terms of that a neighbor discovery reception list (762a, 762b) is recorded in a storage unit 760 (760a, 7

3. Third Embodiment

[0408]Subsequently, description will be given for a third embodiment to which the present invention is applied. In the present embodiment, since a network configuration and an apparatus configuration are similar to those of the above-described first embodiment, detailed description thereof will be omitted.

[0409][3.1 Description of Processing]

[0410]Description will be given for processing in the third embodiment. First, similarly to the first embodiment, the UE 80 performs attachment processing and local PDN connection establishment processing. Since this attachment processing and this local PDN connection establishment processing are similar to those of the first embodiment, description thereof will be omitted.

[0411]Next, description will be given below in detail for the procedure when the UE 80 carries out handover to the HeNB 70b while performing transmission / reception of communication data using local IP access.

[0412][3.1.1 Handover Processing]

[0413]Description