A resource indication method, comprising: defining, in a hierarchical nesting manner, resource units of multiple granularities for a communication signal; and indicating multiple of the resource units of multiple granularities to a terminal; wherein the defining, in a hierarchical nesting manner, resource units of multiple granularities for a communication signal comprises: dividing resources for transmitting the communication signal into multiple levels to obtain multiple levels of resource units, wherein each level of resource units comprises at least one granularity of resource units, and the multiple levels of resource units have a nested relationship; wherein the method further comprises: numbering the resource units of multiple granularities in a predefined manner; wherein the multiple of the resource units of multiple granularities are indicated to the terminal by one of the following manners: indicating the multiple of the resource units of multiple granularities to the terminal by indicating one number to the terminal, wherein the one number corresponds to the multiple of the resource units of multiple granularities; and indicating the multiple of the resource units of multiple granularities to the terminal via more sets of signaling, wherein one set of signaling is configured for indicating one number; wherein the resources comprise at least one of the following: time domain resources, or frequency domain resources. defining, in a hierarchical nesting manner, resource units of multiple granularities for a communication signal; and indicating multiple of the resource units of multiple granularities to a terminal; wherein the defining, in a hierarchical nesting manner, resource units of multiple granularities for a communication signal comprises: dividing resources for transmitting the communication signal into multiple levels to obtain multiple levels of resource units, wherein each level of resource units comprises at least one granularity of resource units, and the multiple levels of resource units have a nested relationship; wherein the method further comprises: numbering the resource units of multiple granularities in a predefined manner; wherein the multiple of the resource units of multiple granularities are indicated to the terminal by one of the following manners: indicating the multiple of the resource units of multiple granularities to the terminal by indicating one number to the terminal, wherein the one number corresponds to the multiple of the resource units of multiple granularities; and indicating the multiple of the resource units of multiple granularities to the terminal via more sets of signaling, wherein one set of signaling is configured for indicating one number; wherein the resources comprise at least one of the following: time domain resources, or frequency domain resources. indicating the multiple of the resource units of multiple granularities to the terminal by indicating one number to the terminal, wherein the one number corresponds to the multiple of the resource units of multiple granularities; and indicating the multiple of the resource units of multiple granularities to the terminal via more sets of signaling, wherein one set of signaling is configured for indicating one number; wherein the resources comprise at least one of the following: time domain resources, or frequency domain resources.