A method, performed in a network node, for paging a wireless device, the method comprising: - determining parameters for a paging transmission; - obtaining two or more possible paging transmission formats; - selecting one of the two or more possible paging transmission formats, based on the determined parameters; and - transmitting the paging transmission using the selected paging transmission format, wherein the determined parameters comprise at least one of: a number of targeted wireless devices or groups of wireless devices, a size of a list of the targeted wireless devices, or a list of the groups of the wireless devices, paging data or a payload size, a network load, latency constraints for the paging transmission, and paging channel link quality, wherein in one of the two or more possible paging transmission formats, the paging transmission comprises only a paging indicator, and wherein the selecting of one of the two or more possible paging transmission formats comprises selecting the paging transmission format in response to at least one of the following parameter conditions: the number of the targeted wireless devices or the groups of the wireless devices being below a threshold number, the size of the list of the targeted wireless devices, or the list of the groups of the wireless devices, being below a threshold size, the paging data and/or the payload size being below a threshold value, the network load being above a threshold load, the latency constraints of the paging transmission being above a threshold constraint, and the paging channel link quality being above a threshold quality. - determining parameters for a paging transmission; - obtaining two or more possible paging transmission formats; - selecting one of the two or more possible paging transmission formats, based on the determined parameters; and - transmitting the paging transmission using the selected paging transmission format, wherein the determined parameters comprise at least one of: a number of targeted wireless devices or groups of wireless devices, a size of a list of the targeted wireless devices, or a list of the groups of the wireless devices, paging data or a payload size, a network load, latency constraints for the paging transmission, and paging channel link quality, wherein in one of the two or more possible paging transmission formats, the paging transmission comprises only a paging indicator, and wherein the selecting of one of the two or more possible paging transmission formats comprises selecting the paging transmission format in response to at least one of the following parameter conditions: the number of the targeted wireless devices or the groups of the wireless devices being below a threshold number, the size of the list of the targeted wireless devices, or the list of the groups of the wireless devices, being below a threshold size, the paging data and/or the payload size being below a threshold value, the network load being above a threshold load, the latency constraints of the paging transmission being above a threshold constraint, and the paging channel link quality being above a threshold quality. wherein the determined parameters comprise at least one of: a number of targeted wireless devices or groups of wireless devices, a size of a list of the targeted wireless devices, or a list of the groups of the wireless devices, paging data or a payload size, a network load, latency constraints for the paging transmission, and paging channel link quality, a number of targeted wireless devices or groups of wireless devices, a size of a list of the targeted wireless devices, or a list of the groups of the wireless devices, paging data or a payload size, a network load, latency constraints for the paging transmission, and paging channel link quality, wherein in one of the two or more possible paging transmission formats, the paging transmission comprises only a paging indicator, and wherein the selecting of one of the two or more possible paging transmission formats comprises selecting the paging transmission format in response to at least one of the following parameter conditions: the number of the targeted wireless devices or the groups of the wireless devices being below a threshold number, the size of the list of the targeted wireless devices, or the list of the groups of the wireless devices, being below a threshold size, the paging data and/or the payload size being below a threshold value, the network load being above a threshold load, the latency constraints of the paging transmission being above a threshold constraint, and the paging channel link quality being above a threshold quality. the number of the targeted wireless devices or the groups of the wireless devices being below a threshold number, the size of the list of the targeted wireless devices, or the list of the groups of the wireless devices, being below a threshold size, the paging data and/or the payload size being below a threshold value, the network load being above a threshold load, the latency constraints of the paging transmission being above a threshold constraint, and the paging channel link quality being above a threshold quality.