CPC H04W 36/0079 (2018.08) [H04W 36/0058 (2018.08); H04W 36/0061 (2013.01); H04W 36/00837 (2018.08)] | 4 Claims |
1. A method for handling a radio link failure (RLF) in a wireless communication system comprising a master cell group (MCG) and a secondary cell group (SCG) the method comprising:
receiving, a radio resource control (RRC) reconfiguration message including measurement configuration information for the SCG, via a signaling radio bearer 3 (SRB 3);
identifying that a measurement report type is set to event-triggered and a measurement report event for the SCG is triggered, based on report configuration information for the SCG including information indicating use of a T312 timer;
in case that the information indicating the use of the T312 timer is included in the report configuration information for the SCG and a T310 timer is running, starting the T312 timer based on the measurement configuration information for the SCG, including a value of the T312 timer;
based on an expiry of the T312 timer on a primary SCG cell (PSCell), declaring a RLF of the SCG; and
transmitting, via a signaling radio bearer 1 (SRB 1), a SCG failure message including a cause value corresponding to a failure type as the expiry of the T312 timer.
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