An information indicating method, comprising: determining Quasi-Co-Location, QCL, group information of a Demodulation Reference Signal, DMRS, port; notifying a terminal of the QCL group information; wherein the determining QCL group information of a DMRS port, comprises: determining an available DMRS port range, or determining a range of an available DMRS Code Division Multiplexing, CDM, group; and determining QCL grouping information of an available DMRS port; wherein the DMRS CDM group is a CDM group of DMRS ports; the notifying a terminal of the QCL group information, comprises: configuring the terminal with the QCL grouping information of the DMRS port, or notifying the terminal of the QCL grouping information of the DMRS port; wherein the determining an available DMRS port range, comprises one of following ways: way 1-a-1: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type and a maximum number of DMRS symbols; way 1-a-2: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type; way 1-a-3: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type and the maximum number of DMRS symbols as well as a quantity of layers that is supported by a base station and a terminal; way 1-a-4: selecting one or more DMRS ports as the available DMRS port range from the available DMRS port range determined in any above way; wherein the determining a range of an available DMRS CDM group, comprises one of following ways: way 1-b-1: determining the range of the available DMRS CDM group as all DMRS CDM groups supported under a configuration condition that satisfies a DMRS configuration type; way 1-b-2: determining the range of the available DMRS CDM group as one or more of all DMRS CDM groups supported under a configuration condition that satisfies a DMRS configuration type. determining Quasi-Co-Location, QCL, group information of a Demodulation Reference Signal, DMRS, port; notifying a terminal of the QCL group information; wherein the determining QCL group information of a DMRS port, comprises: determining an available DMRS port range, or determining a range of an available DMRS Code Division Multiplexing, CDM, group; and determining QCL grouping information of an available DMRS port; wherein the DMRS CDM group is a CDM group of DMRS ports; the notifying a terminal of the QCL group information, comprises: configuring the terminal with the QCL grouping information of the DMRS port, or notifying the terminal of the QCL grouping information of the DMRS port; wherein the determining an available DMRS port range, comprises one of following ways: way 1-a-1: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type and a maximum number of DMRS symbols; way 1-a-2: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type; way 1-a-3: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type and the maximum number of DMRS symbols as well as a quantity of layers that is supported by a base station and a terminal; way 1-a-4: selecting one or more DMRS ports as the available DMRS port range from the available DMRS port range determined in any above way; way 1-a-1: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type and a maximum number of DMRS symbols; way 1-a-2: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type; way 1-a-3: determining the available DMRS port range as all DMRS ports supported under a configuration condition that satisfies a DMRS configuration type and the maximum number of DMRS symbols as well as a quantity of layers that is supported by a base station and a terminal; way 1-a-4: selecting one or more DMRS ports as the available DMRS port range from the available DMRS port range determined in any above way; wherein the determining a range of an available DMRS CDM group, comprises one of following ways: way 1-b-1: determining the range of the available DMRS CDM group as all DMRS CDM groups supported under a configuration condition that satisfies a DMRS configuration type; way 1-b-2: determining the range of the available DMRS CDM group as one or more of all DMRS CDM groups supported under a configuration condition that satisfies a DMRS configuration type. way 1-b-1: determining the range of the available DMRS CDM group as all DMRS CDM groups supported under a configuration condition that satisfies a DMRS configuration type; way 1-b-2: determining the range of the available DMRS CDM group as one or more of all DMRS CDM groups supported under a configuration condition that satisfies a DMRS configuration type.