An information transmission method, wherein the method is executed by a first network node of at least two network nodes, wherein the first network node sends first downlink information to user equipment by using at least one first downlink carrier, a second network node of the at least two network nodes sends second downlink information to the user equipment by using at least one second downlink carrier, and the user equipment sends uplink information to the first network node and the second network node by using at least one uplink carrier, the method comprising determining (S110, S225), by the first network node, a first radio resource, wherein the first radio resource is a resource used for transmitting first uplink information between the user equipment and the first network node; determining (S110, S225), by the first network node, a second radio resource, wherein the second radio resource is a resource used for transmitting second uplink information between the user equipment and the second network node, wherein the second radio resource is different from the first radio resource; sending (S120, S250), by the first network node, uplink transmission configuration information to the user equipment, wherein the uplink transmission configuration information is used to indicate the first radio resource and the second radio resource, and wherein the uplink transmission configuration information is used by the user equipment to send the first uplink information to the first network node by using the first radio resource and to send the second uplink information to the second network node by using the second radio resource; wherein the determining, by the first network node, a first radio resource comprises: determining, by the first network node, the first radio resource according to a transmission requirement of the first uplink information, wherein the transmission requirement of the first uplink information comprises at least one of the following parameters: a data volume of the first uplink information, a transmission rate requirement of the first uplink information, a maximum tolerable delay of the first uplink information, a transmission channel status of the first uplink information, QoS of the first uplink information, and a load status of the first network node; and wherein the determining, by the first network node, a second radio resource comprises: acquiring, by the first network node, auxiliary information from the second network node, wherein the auxiliary information is used to indicate a transmission requirement of the second uplink information, wherein the second radio resource is determined by the second network node according to the transmission requirement of the second uplink information, and the transmission requirement of the second uplink information comprises at least one of the following parameters: a data volume of the second uplink information, a transmission rate requirement of the second uplink information, a maximum tolerable delay of the second uplink information, a transmission channel status of the second uplink information, QoS of the second uplink information, and a load status of the second network node; and determining, by the first network node, the second radio resource according to the auxiliary information. a data volume of the first uplink information, a transmission rate requirement of the first uplink information, a maximum tolerable delay of the first uplink information, a transmission channel status of the first uplink information, QoS of the first uplink information, and a load status of the first network node; and wherein the determining, by the first network node, a second radio resource comprises: acquiring, by the first network node, auxiliary information from the second network node, wherein the auxiliary information is used to indicate a transmission requirement of the second uplink information, wherein the second radio resource is determined by the second network node according to the transmission requirement of the second uplink information, and the transmission requirement of the second uplink information comprises at least one of the following parameters: a data volume of the second uplink information, a transmission rate requirement of the second uplink information, a maximum tolerable delay of the second uplink information, a transmission channel status of the second uplink information, QoS of the second uplink information, and a load status of the second network node; and determining, by the first network node, the second radio resource according to the auxiliary information. acquiring, by the first network node, auxiliary information from the second network node, wherein the auxiliary information is used to indicate a transmission requirement of the second uplink information, wherein the second radio resource is determined by the second network node according to the transmission requirement of the second uplink information, and the transmission requirement of the second uplink information comprises at least one of the following parameters: a data volume of the second uplink information, a transmission rate requirement of the second uplink information, a maximum tolerable delay of the second uplink information, a transmission channel status of the second uplink information, QoS of the second uplink information, and a load status of the second network node; and determining, by the first network node, the second radio resource according to the auxiliary information.