A method for establishing a support, comprising: obtaining (301), by a network gateway packet data, PGW, a first information service quality, QoS, and a first carrier identifier, ID, and establishing a support between the PGW gateway and access network radio, RAN, depending on the first QoS information, wherein the support is associated with the first carrier identifier ID and setting (302) the RAN network, a radio bearer RB, between the RAN network and a user equipment, UE, according to a second QoS information, where RB is associated with a second carrier identifier ID; the second QoS information associated with the first QoS information and the second carrier identifier ID is being associated with the first carrier identifier ID; wherein the establishment of the support between the PGW gateway and RAN, depending on the first QoS information comprises: establishing a first support between the PGW gateway and a gateway SGW service, based on the first information QoS, wherein the first support is associated with the first carrier identifier ID; establishing, by the SGW, a second support between a support node service general packet radio service, SGSN and the SGW according to the first QoS information, wherein the second support is associated with first carrier identifier ID and setting, by the SGSN, a third support between the SGSN and the RAN according to the second QoS information, wherein the third support is associated with the second carrier identifier ID.