UE wake-up ahead of paging occasions to retrieve paging configuration information when in (long) DRX

A terminal device, comprising:

• a radio interface for data transmission between a mobile network and the terminal device;
• a processor;
• and
• a memory including program code which, when executed by the processor, causes the terminal device to:
• control the terminal device to enter, according to a discontinuous reception cycle, a sleep mode in which the terminal device is not monitoring a downlink control channel transmitted by the mobile network,
• determine an advance wakeup time for leaving the sleep mode, said advance wakeup time being advanced by an advancement time interval with respect to a start of an active time according to the discontinuous reception cycle,
• control the terminal device to leave the sleep mode at the determined advance wakeup time and start monitoring the downlink control channel with respect to paging configuration information from the mobile network, the paging configuration information defining a paging occasion for the transmission of the paging information, and
• on the basis of the paging configuration information, control the terminal device to monitor the paging occasion to receive the paging information.

A network node, comprising:

• an interface for controlling data transmission between a mobile network and a terminal device configured to enter, according to a discontinuous reception cycle, a sleep mode in which the terminal device is not monitoring a downlink control channel transmitted by the mobile network;
• a processor;
• and
• a memory including program code which, when executed by the processor, causes the network node to:
• determine an advancement time interval defining an advance wakeup time for the terminal device leaving the sleep mode, said advance wakeup time being advanced by the advancement time interval with respect to a start of an active time of the discontinuous reception cycle;
• and
• control the transmission of the paging information on the basis of the determined advancement time interval.