TRANSFERRING USER EQUIPMENT TO RADIO ACCESS NETWORK WITH DIFFERENT RADIO ACCESS TECHNOLOGY Russian patent published in 2015 - IPC H04W36/00 

FIELD: radio engineering, communication.

SUBSTANCE: network node of a first radio access network is configured to transfer user equipment (UE) from the first radio access network to a second radio access network, wherein the second radio access network has a different radio access technology, RAT, from the first radio access network. The transfer is initiated when the network node receives an indication of an inactive period in a current packet-switched (PS) data session from the user equipment, and the network node transfers the user equipment to the second radio access network as a result of said indication.

EFFECT: enabling fast return of UE to the radio access network with the preferred RAT during the current PS data session when the requested CS is terminated.

20 cl, 14 dwg