Local network and method for establishing connection between local gateway and home base station

摘要

The present invention discloses a local network and a method for establishing a connection between a local gateway and a home base station therein. As regards a newly proposed home base station network architecture 1, a mobility management network element receives L-GW information sent by the home base station, selects an L-GW which is located in the same local network as the home base station at least according to the received L-GW information and then informs the L-GW, through an S-GW, of establishing a PDN connection and a tunnel bearer with the home base station, thereby providing a local IP access for a UE. As regards a newly proposed home base station network architecture 2, no direct interface is arranged between the L-GW and the S-GW, the mobility management network element directly selects a corresponding L-GW for establishing a PDN connection for the UE.

主权项

1. A method for establishing a connection between a local gateway (L-GW) and a home base station, wherein the L-GW is connected to a serving gateway (S-GW), and the S-GW is connected to a mobility management network element, comprising:
receiving, by the mobility management network element, L-GW information sent by the home base station, and selecting the L-GW which is located in a same local network as the home base station according to at least the received L-GW information, so as to establish a local Internet Protocol (IP) access for a user equipment (UE) that initiates a packet data network (PDN) connectivity request; sending, by the mobility management network element, a create session request to the selected L-GW through the S-GW, and receiving, in response to the create session request, a create session response returned by the selected L-GW; and carrying, by the mobility management network element, a local address of the selected L-GW in a bearer setup request that is sent to the home base station, and establishing, by the home base station, the connection between the home base station and the selected L-GW by using the received local address of the selected L-GW.