A method, at a user equipment, UE, for determining a Wireless Local Area Network, WLAN, wakeup time, comprising: receiving, from a base station operating on a WAN technology, a Discontinuous Reception, DRX, configuration; determining a WLAN listen interval that includes at least one Traffic Indication Map, TIM, period and at least one TIM transmission period; setting, based on the DRX configuration, parameters in a WLAN power saving configuration to align a DRX cycle and a beacon interval so that the at least one TIM transmission period overlaps with a DRX On duration; selecting, based on the DRX configuration, a TIM message to monitor within an associated TIM transmission period from the at least one TIM transmission period in the listen interval; determining a WLAN wakeup time that overlaps the associated TIM transmission period; and during the associated TIM transmission periods, receiving, from an Access Point, AP, operating on a WLAN technology the selected TIM message, wherein selecting the TIM message comprises: determining a final TIM message, wherein the final TIM message is the last TIM message transmitted within the listen interval; and, either determining (808,820) that a DRX On duration occurs between the final TIM message and an expiration of the listen interval; and selecting the final TIM message as the TIM message to monitor, or determining (808,830) that the final TIM message is transmitted between an expiration of the listen interval and an DRX On duration immediately preceding the expiration of the listen interval; and selecting a second TIM message as the TIM message to monitor, wherein the second TIM message is a TIM message that is transmitted immediately prior to the final TIM message. receiving, from a base station operating on a WAN technology, a Discontinuous Reception, DRX, configuration; determining a WLAN listen interval that includes at least one Traffic Indication Map, TIM, period and at least one TIM transmission period; setting, based on the DRX configuration, parameters in a WLAN power saving configuration to align a DRX cycle and a beacon interval so that the at least one TIM transmission period overlaps with a DRX On duration; selecting, based on the DRX configuration, a TIM message to monitor within an associated TIM transmission period from the at least one TIM transmission period in the listen interval; determining a WLAN wakeup time that overlaps the associated TIM transmission period; and during the associated TIM transmission periods, receiving, from an Access Point, AP, operating on a WLAN technology the selected TIM message, wherein selecting the TIM message comprises: determining a final TIM message, wherein the final TIM message is the last TIM message transmitted within the listen interval; and, either determining (808,820) that a DRX On duration occurs between the final TIM message and an expiration of the listen interval; and selecting the final TIM message as the TIM message to monitor, or determining (808,830) that the final TIM message is transmitted between an expiration of the listen interval and an DRX On duration immediately preceding the expiration of the listen interval; and selecting a second TIM message as the TIM message to monitor, wherein the second TIM message is a TIM message that is transmitted immediately prior to the final TIM message. determining a final TIM message, wherein the final TIM message is the last TIM message transmitted within the listen interval; and, either determining (808,820) that a DRX On duration occurs between the final TIM message and an expiration of the listen interval; and selecting the final TIM message as the TIM message to monitor, or determining (808,830) that the final TIM message is transmitted between an expiration of the listen interval and an DRX On duration immediately preceding the expiration of the listen interval; and selecting a second TIM message as the TIM message to monitor, wherein the second TIM message is a TIM message that is transmitted immediately prior to the final TIM message.