A method performed by a communication device for determining an extended time period related to a signalling message between a core network node and the communication device in a wireless communications network, the method comprising: obtaining (301) an indication of a coverage capability of the communication device; obtaining (302) an indication of a time period, which time period is related to the signalling message; and determining (303) the extended time period related to the signalling message, based on the indication of the coverage capability of the communication device and based on the indication of the time period.