An information transmission method, comprising: acquiring, by a base station, residence identification information from each User Equipment, UE, in an idle state, wherein the residence identification information is used to identify that the UE in the idle state resides in a cell of the base station, wherein the step of acquiring, by the base station, the residence identification information from each UE in the idle state comprises: allocating, by the base station, a time-frequency resource for the residence identification information; and retrieving, by the base station, the time-frequency resource to acquire the residence identification information, wherein the residence identification information carries UE identification information; and in the case of initiating a random access request procedure by the UE in the idle state, receiving, by the base station, a random access request from the UE in the idle state, wherein the random access request carries the residence identification information, characterized in that the step of acquiring, by the base station, the residence identification information from each UE in the idle state comprises: in the case of initiating the random access request procedure to the base station by the UE in the idle state, determining, by the base station, whether or not sequence information in the random access request meets a predetermined third condition; and in the case of determining that the sequence information in the random access request meets the predetermined third condition, determining, by the base station, the sequence information as the residence identification information. acquiring, by a base station, residence identification information from each User Equipment, UE, in an idle state, wherein the residence identification information is used to identify that the UE in the idle state resides in a cell of the base station, wherein the step of acquiring, by the base station, the residence identification information from each UE in the idle state comprises: allocating, by the base station, a time-frequency resource for the residence identification information; and retrieving, by the base station, the time-frequency resource to acquire the residence identification information, wherein the residence identification information carries UE identification information; and in the case of initiating a random access request procedure by the UE in the idle state, receiving, by the base station, a random access request from the UE in the idle state, wherein the random access request carries the residence identification information, characterized in that the step of acquiring, by the base station, the residence identification information from each UE in the idle state comprises: in the case of initiating the random access request procedure to the base station by the UE in the idle state, determining, by the base station, whether or not sequence information in the random access request meets a predetermined third condition; and in the case of determining that the sequence information in the random access request meets the predetermined third condition, determining, by the base station, the sequence information as the residence identification information. allocating, by the base station, a time-frequency resource for the residence identification information; and retrieving, by the base station, the time-frequency resource to acquire the residence identification information, wherein the residence identification information carries UE identification information; and in the case of initiating a random access request procedure by the UE in the idle state, receiving, by the base station, a random access request from the UE in the idle state, wherein the random access request carries the residence identification information, characterized in that the step of acquiring, by the base station, the residence identification information from each UE in the idle state comprises: in the case of initiating the random access request procedure to the base station by the UE in the idle state, determining, by the base station, whether or not sequence information in the random access request meets a predetermined third condition; and in the case of determining that the sequence information in the random access request meets the predetermined third condition, determining, by the base station, the sequence information as the residence identification information. in the case of initiating the random access request procedure to the base station by the UE in the idle state, determining, by the base station, whether or not sequence information in the random access request meets a predetermined third condition; and in the case of determining that the sequence information in the random access request meets the predetermined third condition, determining, by the base station, the sequence information as the residence identification information.