A communications apparatus, applied on a terminal device side, and comprising: a transceiver unit; a processing unit; wherein the processing unit is configured to perform: receiving, through the transceiver unit, indication information from a network device; wherein the indication information indicates a value of a resource bundling granularity; when the value of the resource bundling granularity being a first-type value: determining at least one resource block bundling group in a scheduling resource corresponding to a terminal device based on a location of a first physical resource block, PRB, of the scheduling resource in a maximum available bandwidth of a system and the first-type value of the resource bundling granularity, wherein, the first-type value comprises 2 or 4; and receiving, through the transceiver unit, using the at least one resource block bundling group, data transmitted from the network device; when the value of the resource bundling granularity being a second-type value: determining a scheduling resource corresponding to the terminal device as one resource block bundling group, wherein, the second-type value comprises a size of a consecutive scheduling bandwidth of the terminal device; and receiving, through the transceiver unit, using the resource block bundling group, data transmitted from the network device. a transceiver unit; a processing unit; wherein the processing unit is configured to perform: receiving, through the transceiver unit, indication information from a network device; wherein the indication information indicates a value of a resource bundling granularity; when the value of the resource bundling granularity being a first-type value: determining at least one resource block bundling group in a scheduling resource corresponding to a terminal device based on a location of a first physical resource block, PRB, of the scheduling resource in a maximum available bandwidth of a system and the first-type value of the resource bundling granularity, wherein, the first-type value comprises 2 or 4; and receiving, through the transceiver unit, using the at least one resource block bundling group, data transmitted from the network device; when the value of the resource bundling granularity being a second-type value: determining a scheduling resource corresponding to the terminal device as one resource block bundling group, wherein, the second-type value comprises a size of a consecutive scheduling bandwidth of the terminal device; and receiving, through the transceiver unit, using the resource block bundling group, data transmitted from the network device. receiving, through the transceiver unit, indication information from a network device; wherein the indication information indicates a value of a resource bundling granularity; when the value of the resource bundling granularity being a first-type value: determining at least one resource block bundling group in a scheduling resource corresponding to a terminal device based on a location of a first physical resource block, PRB, of the scheduling resource in a maximum available bandwidth of a system and the first-type value of the resource bundling granularity, wherein, the first-type value comprises 2 or 4; and receiving, through the transceiver unit, using the at least one resource block bundling group, data transmitted from the network device; determining at least one resource block bundling group in a scheduling resource corresponding to a terminal device based on a location of a first physical resource block, PRB, of the scheduling resource in a maximum available bandwidth of a system and the first-type value of the resource bundling granularity, wherein, the first-type value comprises 2 or 4; and receiving, through the transceiver unit, using the at least one resource block bundling group, data transmitted from the network device; when the value of the resource bundling granularity being a second-type value: determining a scheduling resource corresponding to the terminal device as one resource block bundling group, wherein, the second-type value comprises a size of a consecutive scheduling bandwidth of the terminal device; and receiving, through the transceiver unit, using the resource block bundling group, data transmitted from the network device. determining a scheduling resource corresponding to the terminal device as one resource block bundling group, wherein, the second-type value comprises a size of a consecutive scheduling bandwidth of the terminal device; and receiving, through the transceiver unit, using the resource block bundling group, data transmitted from the network device.