| 摘要 |
Disclosed is a method performed by a 3GPP network node for controlling IP flow mobility performed in a communication network comprising a 3GPP access network (150) and a non-3GPP access network (180, 190), wherein a UE (120) has an IP flow mobility packet data network, PDN, connection set up towards the communication network. The method comprises triggering sending (202) to the UE, a number of IP flow specific radio access network, RAN, assistance parameter values for controlling the UE to route an IP flow of the IP flow mobility PDN connection either over the 3GPP access network (150) or over the non-3GPP access network (180, 190). The IP flow specific RAN assistance parameters may be threshold parameters setting a limit for when to route an IP flow to the 3GPP access network, e.g. LTE,or when to route the IP flows to the non-3GPP access network (e.g. WLAN). That the parameters are IP flow specific means that they are set per IP flow, in other words it is possible to make them differ from one IP flow to another. By sending IP flow specific RAN assistance parameter values to the UE, the UE can route different IP flows of the same IP flow mobility connection over different access networks. |
