Gerardus Johannes Petrus Van Lieshout,Howard Peter Benn
申请号：
GB20150008734
公开号：
GB2538551(A)
申请日:
2015.05.21
申请国别(地区):
英国
年份:
2016
代理人:
摘要：
A mobile communications network employing a software defined networking (SDN) architecture is arranged to communicate data packets between a mobile terminal 200 and a packet data network via one or more routers connected to an SDN controller 500. A data packet pathway is established for communicating data packets between a first IP address associated with the mobile terminal and a second IP address associated with the packet data network. The pathway includes a first local gateway (L-GW) 900 which is a first point within the mobile communications network through which all data packets communicated over the data packet pathway from the second IP address to the first IP address must pass. A second local gateway is selected and routing information of at least one of the routers is updated such that the second local gateway replaces the first local gateway in the data packet pathway. The L-GW can be moved whilst maintaining the IP address of the UE. Combinations of routing techniques are used such as tunnelling,
