A method of associating in a basic service set, BSS, the method comprising: receiving, by a first node , a first packet from a second node , wherein the first node is an access point, and the second node is a station; and the method is characterized by further comprising: determining, by the first node , whether association is pursued in accordance with a first traffic type accepted by the first node and the first packet comprising a second traffic type accepted by the second node or in accordance with a first device type accepted by the first node and the first packet comprising a second device type of the second node (104, io6, io8); and indicating, by the first node to the second node , whether the association is pursued, wherein the association is pursued when the first traffic type accepted by the first node is only sensor traffic and the second traffic type accepted by the second node is only sensor traffic; or the association is pursued when the first device type accepted by the first node is only sensor device and the second device type of the second node is only sensor device; or the association is pursued when the first traffic type accepted by the first node is only offloading traffic and the second traffic type accepted by the second node is only offloading traffic; or the association is pursued when the first device type accepted by the first node is only offloading device and the second device type of the second node is only offloading device; or the association is pursued when the first traffic type accepted by the first node is both sensor traffic and offloading traffic and the second traffic type accepted by the second node comprises sensor traffic or offloading traffic; or the association is pursued when the first device type accepted by the first node is both sensor device and offloading device and the second device type of the second node comprises sensor device or offloading device. determining, by the first node , whether association is pursued in accordance with a first traffic type accepted by the first node and the first packet comprising a second traffic type accepted by the second node or in accordance with a first device type accepted by the first node and the first packet comprising a second device type of the second node (104, io6, io8); and indicating, by the first node to the second node , whether the association is pursued, wherein the association is pursued when the first traffic type accepted by the first node is only sensor traffic and the second traffic type accepted by the second node is only sensor traffic; or the association is pursued when the first device type accepted by the first node is only sensor device and the second device type of the second node is only sensor device; or the association is pursued when the first traffic type accepted by the first node is only offloading traffic and the second traffic type accepted by the second node is only offloading traffic; or the association is pursued when the first device type accepted by the first node is only offloading device and the second device type of the second node is only offloading device; or the association is pursued when the first traffic type accepted by the first node is both sensor traffic and offloading traffic and the second traffic type accepted by the second node comprises sensor traffic or offloading traffic; or the association is pursued when the first device type accepted by the first node is both sensor device and offloading device and the second device type of the second node comprises sensor device or offloading device. <EOS>