An access network device, wherein the device comprises: an indication receiving module, configured to receive an offloading inclination indication of service data from a core network device, wherein the offloading inclination indication is used to indicate a scheduling inclination of the service data on a first resource, and the first resource comprises a Long Term Evolution, LTE, carrier in an unlicensed spectrum, a transmission resource provided by a wireless local area network, WLAN, or a transmission resource provided by a secondary eNodeB, wherein the offloading inclination indication-comprises: prohibiting scheduling on the first resource; or allowing scheduling on the first resource; or preferably performing scheduling on the first resource; or preferably performing scheduling on a non-first resource; and wherein the device further comprises a resource allocation module, configured to allocate, according to the offloading inclination indication, a transmission resource used for transmitting the service data; and a data transmission module, configured to transmit the service data by using the allocated transmission resource; characterized in that the device further comprises a traffic statistics collection module and a traffic reporting module, wherein the traffic statistics collection module is configured to collect traffic statistics information respectively corresponding to the transmission resource that is used for transmitting the service data and belongs to the first resource and/or the transmission resource that is used for transmitting the service data and belongs to the non-first resource; and the traffic reporting module is configured to report the traffic statistics information to a core network device which sends the traffic statistics information to a charging network element, so that the charging network element performs, according to the traffic statistics information, differential charging on the transmission resource that belongs to the first resource and/or the transmission resource that belongs to the non-first resource. prohibiting scheduling on the first resource; or allowing scheduling on the first resource; or preferably performing scheduling on the first resource; or preferably performing scheduling on a non-first resource; and wherein the device further comprises a resource allocation module, configured to allocate, according to the offloading inclination indication, a transmission resource used for transmitting the service data; and a data transmission module, configured to transmit the service data by using the allocated transmission resource; characterized in that the device further comprises a traffic statistics collection module and a traffic reporting module, wherein the traffic statistics collection module is configured to collect traffic statistics information respectively corresponding to the transmission resource that is used for transmitting the service data and belongs to the first resource and/or the transmission resource that is used for transmitting the service data and belongs to the non-first resource; and the traffic reporting module is configured to report the traffic statistics information to a core network device which sends the traffic statistics information to a charging network element, so that the charging network element performs, according to the traffic statistics information, differential charging on the transmission resource that belongs to the first resource and/or the transmission resource that belongs to the non-first resource.