1. A method of selecting a gateway, comprising:
a Mobility Management Entity, MME, receiving an Initial UE message carrying identity indication information of a Relay Node,
RN, sent from a Donor evolved Node B, DeNB, and acquiring subscription data of the RN from a Home Subscriber Server, HSS;
the MME determining whether the RN is a mobile RN according to the identity indication information and/or the subscription
data of the RN, and selecting a Packet data Gateway, PGW, located in a core network as the PGW of the RN upon determining
that the RN is a mobile RN.