A paging method, applied in a User Equipment, UE, comprising: receiving (S11) a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, wherein the paging message carries at least one of downlink data arrival indication information and system message change indication information; and performing (S12) at least one of initiating a random access and receiving a changed system message according to the paging message; wherein the multi-carrier cell comprises an anchor carrier and a plurality of non-anchor carriers; wherein on condition that the paging message carries the downlink data arrival indication information, the performing at least one of the initiating the random access and receiving the changed system message according to the paging message comprises: determining whether the first non-anchor carrier is configured with a corresponding random access resource; when the first non-anchor carrier is configured with the corresponding random access resource, initiating random access from the first non-anchor carrier; and when the first non-anchor carrier is not configured with the random access resource, jumping to other non-anchor carrier or the anchor carrier and initiating the random access; wherein after the initiating the random access according to the paging message, the method further comprises: receiving, by the UE, corresponding downlink data. receiving (S11) a paging message from a base station on a first non-anchor carrier of a multi-carrier cell, wherein the paging message carries at least one of downlink data arrival indication information and system message change indication information; and performing (S12) at least one of initiating a random access and receiving a changed system message according to the paging message; wherein the multi-carrier cell comprises an anchor carrier and a plurality of non-anchor carriers; wherein on condition that the paging message carries the downlink data arrival indication information, the performing at least one of the initiating the random access and receiving the changed system message according to the paging message comprises: determining whether the first non-anchor carrier is configured with a corresponding random access resource; when the first non-anchor carrier is configured with the corresponding random access resource, initiating random access from the first non-anchor carrier; and when the first non-anchor carrier is not configured with the random access resource, jumping to other non-anchor carrier or the anchor carrier and initiating the random access; determining whether the first non-anchor carrier is configured with a corresponding random access resource; when the first non-anchor carrier is configured with the corresponding random access resource, initiating random access from the first non-anchor carrier; and when the first non-anchor carrier is not configured with the random access resource, jumping to other non-anchor carrier or the anchor carrier and initiating the random access; wherein after the initiating the random access according to the paging message, the method further comprises: receiving, by the UE, corresponding downlink data. <EOS>