A method for discovery reference signal - DRS - Alignment Scheduling, implemented in a network node for transmitting data to a wireless device, wherein the data is time aligned with a periodic high priority transmission comprising the steps of: defining a zone prior to the occasion of the periodic high priority transmission where data packets could be aligned; identifying suitable data packets to schedule in the zone prior to the periodic high priority transmission; performing a clear channel assessment - CCA; transmitting the periodic high priority transmission; wherein the periodic high priority transmission is a Discovery Reference Signal - DRS - occasion and wherein data arriving at the network node is delayed in order to be positioned in at least one subframe to be transmitted prior to, but in conjunction with the DRS occasion, wherein low latency data arriving in the zone is not delayed; wherein the method further comprises: filling up a subframe being closest in time to the DRS occasion with delayed data first and then filling up a number of subframes preceding the subframe being closest in time to the DRS occasion in order to build up a contiguous time period of subframes comprising delayed data; and wherein performing a clear channel assessment comprises performing a first type of listen before talk - LBT - when a time for transmitting the at least one subframe comprising the delayed data and the DRS in a contiguous transmission burst is reached; if the first type of LBT fails, performing a second type of LBT prior to the DRS occasion in order to transmit the at least one subframe and the DRS; and if the arriving data is scheduled using semi-persistent scheduling, configuring the data to occupy the subframe preceding the DRS occasion. defining a zone prior to the occasion of the periodic high priority transmission where data packets could be aligned; identifying suitable data packets to schedule in the zone prior to the periodic high priority transmission; performing a clear channel assessment - CCA; transmitting the periodic high priority transmission; wherein the periodic high priority transmission is a Discovery Reference Signal - DRS - occasion and wherein data arriving at the network node is delayed in order to be positioned in at least one subframe to be transmitted prior to, but in conjunction with the DRS occasion, wherein low latency data arriving in the zone is not delayed; wherein the method further comprises: filling up a subframe being closest in time to the DRS occasion with delayed data first and then filling up a number of subframes preceding the subframe being closest in time to the DRS occasion in order to build up a contiguous time period of subframes comprising delayed data; and wherein performing a clear channel assessment comprises performing a first type of listen before talk - LBT - when a time for transmitting the at least one subframe comprising the delayed data and the DRS in a contiguous transmission burst is reached; if the first type of LBT fails, performing a second type of LBT prior to the DRS occasion in order to transmit the at least one subframe and the DRS; and if the arriving data is scheduled using semi-persistent scheduling, configuring the data to occupy the subframe preceding the DRS occasion. filling up a subframe being closest in time to the DRS occasion with delayed data first and then filling up a number of subframes preceding the subframe being closest in time to the DRS occasion in order to build up a contiguous time period of subframes comprising delayed data; and wherein performing a clear channel assessment comprises performing a first type of listen before talk - LBT - when a time for transmitting the at least one subframe comprising the delayed data and the DRS in a contiguous transmission burst is reached; if the first type of LBT fails, performing a second type of LBT prior to the DRS occasion in order to transmit the at least one subframe and the DRS; and if the arriving data is scheduled using semi-persistent scheduling, configuring the data to occupy the subframe preceding the DRS occasion.