Method, device, and system for reporting public land mobile network (plmn)

The present invention provides a method, a device, and a system for reporting a public land mobile network (PLMN). A user equipment in the coverage of a macro cell measures a neighboring cell of the macro cell, to obtain a PLMN ID of a closed subscriber group (CSG) cell; the user equipment obtains, according to a local white list and the PLMN ID, a PLMN, that allows the user equipment to access, of the CSG cell; when the PLMN, that allows the user equipment to access, of the CSG cell comprises a home PLMN and/or registered PLMN, the user equipment determines, according to the home PLMN and/or registered PLMN, a first PLMN ID of the CSG cell; the user equipment carries, in measurement information, the first PLMN ID of the CSG cell and first indication information which indicates that the PLMN corresponding to the first PLMN ID is a home PLMN or registered PLMN; and the user equipment reports the measurement information to a network side device to which the macro cell belongs. The present invention ensures that the network side preferentially enables a user equipment to access a home PLMN or registered PLMN of low tariff.