Method and apparatus for activating or deactivating cell group in next-generation wireless communication system
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. Provided is a method performed by a terminal in a wireless communication system that includes receiving a radio resource control (RRC) message including information associated with a deactivation of a secondary cell group (SCG), and resetting a medium access control (MAC) of the SCG based on the RRC message, with a timing alignment timer (TAT) associated with the SCG not being stopped for resetting the MAC of the SCG.
1 . A method performed by a terminal in a wireless communication system, the method comprising:
receiving a radio resource control (RRC) message including first information on a deactivation of a secondary cell group (SCG) and second information on a configuration of beam failure detection and radio link monitoring;
resetting a medium access control (MAC) of the SCG based on the RRC message, and
stopping all timers, except a beam failure detection timer associated with a primary SCG cell (PSCell) and a timing alignment timer (TAT) based on the deactivation of the SCG and the configuration of beam failure detection and radio link monitoring.
2 . The method of claim 1 ,
wherein the beam failure detection timer associated with the PSCell continues to run regardless of reset of the MAC of the SCG.
3 . The method of claim 2 ,
wherein, in case that the configuration of beam failure detection and radio link monitoring is not configured for the SCG, the beam failure detection timer associated with the PSCell is stopped.
4 . The method of claim 1 ,
wherein the TAT associated with the SCG continues to run regardless of reset of the MAC of the SCG.
5 . The method of claim 4 ,
wherein, in case that the configuration of beam failure detection and radio link monitoring is configured for the SCG, the beam failure indication counter associated with the PSCell is not reset.
6 . The method of claim 1 ,
wherein, in case that the configuration of beam failure detection and radio link monitoring is not configured for the SCG, a beam failure indication counter associated with the PSCell is reset.
7 . A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
at least one processor coupled to the transceiver and configured to:
receive a radio resource control (RRC) message including first information on a deactivation of a secondary cell group (SCG) and second information on a configuration of beam failure detection and radio link monitoring,
reset a medium access control (MAC) of the SCG based on the RRC message, and
stop all timers, except a beam failure detection timer associated with a primary SCG cell (PSCell) and a timing alignment timer (TAT) based on the deactivation of the SCG and the configuration of beam failure detection and radio link monitoring.
8 . The terminal of claim 7 ,
wherein the beam failure detection timer associated with the PSCell continues to run regardless of reset of the MAC of the SCG.
9 . The terminal of claim 8 ,
wherein, in case that the configuration of a beam failure detection and radio link monitoring is not configured for the SCG, the beam failure detection timer associated with the PSCell is stopped.
10 . The terminal of claim 7 ,
wherein the TAT associated with the SCG continues to run regardless of reset of the MAC of the SCG.
11 . The terminal of claim 10 ,
wherein, in case that the configuration of beam failure detection and radio link monitoring is configured for the SCG, the beam failure indication counter associated with the PSCell is not reset.
12 . The terminal of claim 7 ,
wherein, in case that the configuration of beam failure detection and radio link monitoring is not configured for the SCG, a beam failure indication counter associated with the PSCell is reset.