A communication method, wherein the method is applied to a terminal including an application processor and a wireless communications module the method comprising: before the application processor starts an operator parameter configuration program, and when determining, by the wireless communication module, that a subscriber identity module SIM card in the terminal is powered on, reading, by the wireless communications module, first information in the SIM card from the SIM card; sending, by the wireless communications module, the first information to the application processor; and obtaining (S 103), by the application processor based on the first information, an operator parameter, characterised in that the operator parameter is used by the terminal to access a network of the operator by using the SIM card, and in that the method further comprises sending, by the application processor, information about the operator parameter to the wireless communications module; determining, by the wireless communications module, the operator parameter based on the information about the operator parameter; and loading, by the wireless communications module, the operator parameter, wherein before the loading, the method further comprises: performing, by the wireless communications module, a pre-loading process, wherein the pre-loading process comprises the wireless communications module being configured to: receive a first command through an attention, AT, command channel, wherein the first command includes the information about the operator parameter; lock the AT command channel, and buffer an AT command sent by the application processor; after loading the operator parameter, unlock the AT command channel; and the first information comprises some or all of an international mobile subscriber identity IMSI, a service provider name SPN, or a global identifier ID GID. before the application processor starts an operator parameter configuration program, and when determining, by the wireless communication module, that a subscriber identity module SIM card in the terminal is powered on, reading, by the wireless communications module, first information in the SIM card from the SIM card; sending, by the wireless communications module, the first information to the application processor; and obtaining (S 103), by the application processor based on the first information, an operator parameter, characterised in that the operator parameter is used by the terminal to access a network of the operator by using the SIM card, and in that the method further comprises sending, by the application processor, information about the operator parameter to the wireless communications module; determining, by the wireless communications module, the operator parameter based on the information about the operator parameter; and loading, by the wireless communications module, the operator parameter, wherein before the loading, the method further comprises: performing, by the wireless communications module, a pre-loading process, wherein the pre-loading process comprises the wireless communications module being configured to: receive a first command through an attention, AT, command channel, wherein the first command includes the information about the operator parameter; lock the AT command channel, and buffer an AT command sent by the application processor; after loading the operator parameter, unlock the AT command channel; and the first information comprises some or all of an international mobile subscriber identity IMSI, a service provider name SPN, or a global identifier ID GID. performing, by the wireless communications module, a pre-loading process, wherein the pre-loading process comprises the wireless communications module being configured to: receive a first command through an attention, AT, command channel, wherein the first command includes the information about the operator parameter; lock the AT command channel, and buffer an AT command sent by the application processor; after loading the operator parameter, unlock the AT command channel; and the first information comprises some or all of an international mobile subscriber identity IMSI, a service provider name SPN, or a global identifier ID GID. receive a first command through an attention, AT, command channel, wherein the first command includes the information about the operator parameter; lock the AT command channel, and buffer an AT command sent by the application processor; after loading the operator parameter, unlock the AT command channel; and the first information comprises some or all of an international mobile subscriber identity IMSI, a service provider name SPN, or a global identifier ID GID.