FIELD: radio engineering, communication.
SUBSTANCE: invention relates to wireless communication systems, particularly to signalling messages in a multi-RAB wireless communication system capable of a concurrent circuit-switched voice communication link and packet-switched data communication link. If the value of a timer has a predetermined value, user equipment may release the packet-switched communication link and maintain the circuit-switched communication link. The packet-switched communication link may then be re-established.
EFFECT: maintaining quality of circuit-switched voice calls with a high data rate for packet-switched calls; user equipment establishes a circuit-switched communication link and a packet-switched communication link with a core network, after which it receives an indication of an error associated with the packet-switched communication link.
40 cl, 8 dwg
