A resource configuration method, comprising: determining, by a network device, a first downlink virtual carrier in N downlink virtual carriers, wherein the first downlink virtual carrier is used to determine a carrier bandwidth part BWP, the N downlink virtual carriers are configured on at least one downlink carrier in a same cell, and the N downlink virtual carriers correspond to a same subcarrier spacing, N>1, and N is an integer; and sending, by the network device, indication information to a terminal, wherein the indication information is used to indicate the first downlink virtual carrier; characterized by further comprising: mapping a to-be-transmitted signal to a resource grid to obtain an OFDM baseband signal, where the resource grid is determined based on the N downlink virtual carriers, wherein the N downlink virtual carriers comprise N grid size subcarriers which form the resource grid, N grid size > 1, and N grid size is an integer, wherein the N downlink virtual carriers comprise a virtual carrier #1 and a virtual carrier #2, wherein the virtual carrier #1 includes N grid, 1 size subcarriers, the virtual carrier #2 includes N grid, 2 size subcarriers, and both N grid, 1 size and N grid, 2 size are integers greater than 0, and the baseband signal comprises a summation item for each of the N downlink virtual carriers, the summation item being a sum of to-be-transmitted signals on the subcarriers of each downlink virtual carrier, wherein the summation item for the virtual carrier #1 is a sum of to-be-transmitted signals on the N grid, 1 size subcarriers and the summation item for the virtual carrier #2 is a sum of to-be-transmitted signals on the N grid, 2 size subcarriers; and sending the OFDM baseband signal. determining, by a network device, a first downlink virtual carrier in N downlink virtual carriers, wherein the first downlink virtual carrier is used to determine a carrier bandwidth part BWP, the N downlink virtual carriers are configured on at least one downlink carrier in a same cell, and the N downlink virtual carriers correspond to a same subcarrier spacing, N>1, and N is an integer; and sending, by the network device, indication information to a terminal, wherein the indication information is used to indicate the first downlink virtual carrier; characterized by further comprising: mapping a to-be-transmitted signal to a resource grid to obtain an OFDM baseband signal, where the resource grid is determined based on the N downlink virtual carriers, wherein the N downlink virtual carriers comprise N grid size subcarriers which form the resource grid, N grid size > 1, and N grid size is an integer, wherein the N downlink virtual carriers comprise a virtual carrier #1 and a virtual carrier #2, wherein the virtual carrier #1 includes N grid, 1 size subcarriers, the virtual carrier #2 includes N grid, 2 size subcarriers, and both N grid, 1 size and N grid, 2 size are integers greater than 0, and the baseband signal comprises a summation item for each of the N downlink virtual carriers, the summation item being a sum of to-be-transmitted signals on the subcarriers of each downlink virtual carrier, wherein the summation item for the virtual carrier #1 is a sum of to-be-transmitted signals on the N grid, 1 size subcarriers and the summation item for the virtual carrier #2 is a sum of to-be-transmitted signals on the N grid, 2 size subcarriers; and sending the OFDM baseband signal. mapping a to-be-transmitted signal to a resource grid to obtain an OFDM baseband signal, where the resource grid is determined based on the N downlink virtual carriers, wherein the N downlink virtual carriers comprise N grid size subcarriers which form the resource grid, N grid size > 1, and N grid size is an integer, wherein the N downlink virtual carriers comprise a virtual carrier #1 and a virtual carrier #2, wherein the virtual carrier #1 includes N grid, 1 size subcarriers, the virtual carrier #2 includes N grid, 2 size subcarriers, and both N grid, 1 size and N grid, 2 size are integers greater than 0, and the baseband signal comprises a summation item for each of the N downlink virtual carriers, the summation item being a sum of to-be-transmitted signals on the subcarriers of each downlink virtual carrier, wherein the summation item for the virtual carrier #1 is a sum of to-be-transmitted signals on the N grid, 1 size subcarriers and the summation item for the virtual carrier #2 is a sum of to-be-transmitted signals on the N grid, 2 size subcarriers; and sending the OFDM baseband signal.