An information transmission method, comprising: determining, by a base station, a first frequency resource, wherein the first frequency resource is a frequency resource used to send first information in an enhanced manner; determining, by the base station, a second frequency resource, wherein the second frequency resource is a frequency resource used to send second information or send second information in an enhanced manner; and when the first frequency resource and the second frequency resource overlap and there is an overlapping frequency resource between the first frequency resource and the second frequency resource, sending, by the base station, in an available subframe for sending the first information in an enhanced manner, the first information in an enhanced manner by using the first frequency resource, wherein the available subframe is one or more subframes other than a subframe in a subframe set for sending the second information or sending the second information in an enhanced manner; or sending, by the base station, in a subframe in a subframe set for sending the second information or sending the second information in an enhanced manner, the first information in an enhanced manner on a frequency resource other than the overlapping frequency resource in the first frequency resource; wherein the first information is specifically at least one of unicast data, a system information block, or a random access response, RAR, and the second information is specifically a master information block; or the first information is specifically a random access response, RAR, and the second information is specifically a system information block; or the first information is specifically a paging message, and the second information is specifically a system information block and/or a random access response, RAR; or the first information is specifically unicast data, and the second information is specifically at least one of a system information block, a random access response, RAR, or a paging message; and wherein sending the first/second information in an enhanced manner comprises sending the first/second information repeatedly in multiple subframes. determining, by a base station, a first frequency resource, wherein the first frequency resource is a frequency resource used to send first information in an enhanced manner; determining, by the base station, a second frequency resource, wherein the second frequency resource is a frequency resource used to send second information or send second information in an enhanced manner; and when the first frequency resource and the second frequency resource overlap and there is an overlapping frequency resource between the first frequency resource and the second frequency resource, sending, by the base station, in an available subframe for sending the first information in an enhanced manner, the first information in an enhanced manner by using the first frequency resource, wherein the available subframe is one or more subframes other than a subframe in a subframe set for sending the second information or sending the second information in an enhanced manner; or sending, by the base station, in a subframe in a subframe set for sending the second information or sending the second information in an enhanced manner, the first information in an enhanced manner on a frequency resource other than the overlapping frequency resource in the first frequency resource; wherein the first information is specifically at least one of unicast data, a system information block, or a random access response, RAR, and the second information is specifically a master information block; or the first information is specifically a random access response, RAR, and the second information is specifically a system information block; or the first information is specifically a paging message, and the second information is specifically a system information block and/or a random access response, RAR; or the first information is specifically unicast data, and the second information is specifically at least one of a system information block, a random access response, RAR, or a paging message; and wherein sending the first/second information in an enhanced manner comprises sending the first/second information repeatedly in multiple subframes.