METHOD AND NETWORK NODE FOR ROUTING IP PACKETS

摘要

The disclosure provides a method in a network node (100) for routing Internet Protocol (IP) packets. The method (100) comprises: receiving (S110) from a Radio Access Network (RAN) node an IP address assignment request originated from a pico-Base Station (pico-BS) for assigning an IP address to the pico-BS. The RAN node is communicative with a backhaul User Equipment (UE) to which the pico-BS is connected. The method (100) further comprises: assigning (S120) an IP address to the pico-BS in response to the IP address assignment request; encapsulating (S130), upon receiving from another network node an IP packet destined to the IP address assigned to the pico-BS, the IP packet into a General Packet Radio Service (GPRS) Tunnel Protocol (GTP) packet; and transmitting (S140) the GTP packet to the RAN node.