A downlink information transmission method, comprising: encoding to-be-sent information into N transport blocks, wherein N > 1; determining a time-frequency resource used to send each transport block, wherein time-frequency resources occupied by at least two transport blocks comprise a same time domain resource and different frequency domain resources; sending downlink resource indication information to user equipment, wherein the downlink resource indication information is used to indicate a time-frequency resource location of an M th transport block in the N transport blocks, and N ≥ M ≥ 1; and sending the N transport blocks on the determined time-frequency resources; wherein each of the N transport blocks carries the same to-be-sent information, and each transport block can be independently decoded; or a first transport block in the N transport blocks carries the to-be-sent information, and the first transport block can be independently decoded; and a remaining transport block in the N transport blocks carries redundancy information or check information of the first transport block, and the remaining transport block and the first transport block can be jointly decoded; characterized in that the downlink resource indication information further comprises a location parameter of a time-frequency resource of a transport block other than the M th transport block, and the location parameter of the transport block is used to indicate a relationship between a time-frequency resource location of the transport block and the time-frequency resource location of the M th transport block or is used to indicate a relationship between time-frequency resource locations of any two neighboring transport blocks of the N transport blocks; wherein the location parameter of the transport block comprises a frequency domain interval between the transport block and the M th transport block or a frequency domain interval between any two neighboring transport blocks of the N transport blocks. encoding to-be-sent information into N transport blocks, wherein N > 1; determining a time-frequency resource used to send each transport block, wherein time-frequency resources occupied by at least two transport blocks comprise a same time domain resource and different frequency domain resources; sending downlink resource indication information to user equipment, wherein the downlink resource indication information is used to indicate a time-frequency resource location of an M th transport block in the N transport blocks, and N ≥ M ≥ 1; and sending the N transport blocks on the determined time-frequency resources; wherein each of the N transport blocks carries the same to-be-sent information, and each transport block can be independently decoded; or a first transport block in the N transport blocks carries the to-be-sent information, and the first transport block can be independently decoded; and a remaining transport block in the N transport blocks carries redundancy information or check information of the first transport block, and the remaining transport block and the first transport block can be jointly decoded; characterized in that the downlink resource indication information further comprises a location parameter of a time-frequency resource of a transport block other than the M th transport block, and the location parameter of the transport block is used to indicate a relationship between a time-frequency resource location of the transport block and the time-frequency resource location of the M th transport block or is used to indicate a relationship between time-frequency resource locations of any two neighboring transport blocks of the N transport blocks; wherein the location parameter of the transport block comprises a frequency domain interval between the transport block and the M th transport block or a frequency domain interval between any two neighboring transport blocks of the N transport blocks.