Core network equipment and HNB, and method thereof for processing LIPA connection
A technology of core network equipment and home base stations, applied in connection management, electrical components, wireless communication, etc., can solve problems such as not supporting mobility, and achieve the effect of maintaining continuity
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Embodiment 1
[0079] In the LTE system, the terminal activates the LIPA connection in a home base station cell, and then the home base station needs to initiate a handover due to the movement of the terminal. Assume that the target HNB is a HNB connected to the same local gateway as the source HNB, the HNB and the source HNB have the same closed user group identity, and there is an X2 interface between the source HNB and the target HNB. The core network control node MME will determine that the LIPA connection can be maintained. In this scenario, the LIPA connection processing process is as follows: Figure 7 shown, including:
[0080] Step S701, the source HNB sends a first message to the MME, which includes the target HNB's cell ID, base station ID, closed user group ID, etc.;
[0081] In step S702, the MME can judge that the LIPA connection can continue to be maintained when handing over to the target base station according to the subscription information of the UE, the relevant informa...
Embodiment 2
[0087] In the UMTS system, a terminal activates a LIPA connection in a home base station and this connection is not the only connection of the terminal. Then, due to the movement of the terminal, the home base station needs to initiate a handover. Assuming that the target base station is a macro base station at this time, the core network control node SGSN will determine that the LIPA connection cannot be maintained. In this scenario, the LIPA connection processing process is as follows: Figure 8 shown.
[0088] Step S801, the home base station sends a first message to the core network equipment SGSN, which includes the relevant identification of the target base station, such as the cell identification, etc.;
[0089] Step S802, the SGSN knows from the first message that the target cell is a macro base station, and therefore judges that the LIPA connection cannot be maintained;
[0090] Step S803, the SGSN initiates a PDP Context release process according to the existing fl...
Embodiment 3
[0094] The difference from Embodiment 1 is that the handover target cell is a HNB cell to which the terminal has not subscribed, and there is no X2 interface between the source cell and the target cell. At this time, the operation of the core network device as the core network control node is as follows:
[0095] 1) After receiving the first message, since the target cell is a home base station cell, the basic access control process will be executed;
[0096] 2) Since the terminal has not subscribed to the cell of the target HNB, basic access control fails, and the core network control node returns a second message carrying access failure information to the source HNB.
[0097] After receiving the above second message, the source HNB performs operations according to the prior art, such as selecting another target cell for the terminal.
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