A communication method carried out by a terminal device, wherein the method comprises: receiving, by the terminal device, first indication information from an access network device; determining, by the terminal device, a target bandwidth part, BWP, from a plurality of initial BWPs based on the first indication information, wherein the initial BWP is used to page a terminal device that has not established a radio resource control, RRC, connection to the access network device; characterized in that, the method comprises: monitoring, by the terminal device, a paging message in the target BWP; wherein, the first indication information is carried in a system information block SIB 1; and wherein the method performed by the terminal device further comprises: reading the SIB 1 in a first initial BWP; and the determining a target bandwidth part BWP from a plurality of initial BWPs based on the first indication information comprises: determining, based on the first indication information, that the target BWP is a second initial BWP, wherein the second initial BWP is different from the first initial BWP; and the first initial BWP and the second initial BWP belong to the plurality of initial BWPs. receiving, by the terminal device, first indication information from an access network device; determining, by the terminal device, a target bandwidth part, BWP, from a plurality of initial BWPs based on the first indication information, wherein the initial BWP is used to page a terminal device that has not established a radio resource control, RRC, connection to the access network device; characterized in that, the method comprises: monitoring, by the terminal device, a paging message in the target BWP; wherein, the first indication information is carried in a system information block SIB 1; and wherein the method performed by the terminal device further comprises: reading the SIB 1 in a first initial BWP; and the determining a target bandwidth part BWP from a plurality of initial BWPs based on the first indication information comprises: determining, based on the first indication information, that the target BWP is a second initial BWP, wherein the second initial BWP is different from the first initial BWP; and the first initial BWP and the second initial BWP belong to the plurality of initial BWPs. monitoring, by the terminal device, a paging message in the target BWP; wherein, the first indication information is carried in a system information block SIB 1; and wherein the method performed by the terminal device further comprises: reading the SIB 1 in a first initial BWP; and the determining a target bandwidth part BWP from a plurality of initial BWPs based on the first indication information comprises: determining, based on the first indication information, that the target BWP is a second initial BWP, wherein the second initial BWP is different from the first initial BWP; and the first initial BWP and the second initial BWP belong to the plurality of initial BWPs. reading the SIB 1 in a first initial BWP; and the determining a target bandwidth part BWP from a plurality of initial BWPs based on the first indication information comprises: determining, based on the first indication information, that the target BWP is a second initial BWP, wherein the second initial BWP is different from the first initial BWP; and the first initial BWP and the second initial BWP belong to the plurality of initial BWPs. determining, based on the first indication information, that the target BWP is a second initial BWP, wherein the second initial BWP is different from the first initial BWP; and the first initial BWP and the second initial BWP belong to the plurality of initial BWPs.