SYSTEMS AND METHODS FOR CALLS MANAGEMENT WITH RETURN TO MODE WITH COMMUTATION OF CHANNELS Russian patent published in 2018 - IPC H04W36/00 

FIELD: electrical communication engineering.

SUBSTANCE: invention relates to wireless communication. In cellular wireless network, it is possible to transfer call from PS packet portion of wireless cellular network to CS cell of wireless cellular network so that CS network receiving call can actually support call. Before wireless cellular network selects RAT for CS network to transfer call, wireless cellular network identifies type of call for this call (single voice call, video call, etc.), identifies RAT for CS network that can support this type of call, and transmits call to CS section of wireless cellular network that can support this type of call.

EFFECT: technical result is to improve CSFB procedure (return to circuit-switched mode) for various types of calls.

21 cl, 8 dwg