A paging method, comprising: determining, by a first terminal device in a discontinuous reception periodicity, a first paging occasion of the first terminal device; and when channel listening on the first paging occasion fails, receiving, by the first terminal device, a first paging message in a time window, wherein a start position of the time window is determined based on the first paging occasion, and the time window comprises at least one paging occasion, wherein each paging occasion comprised in the time window corresponds to at least one paging position, and different paging positions occupy different bandwidth areas, wherein the receiving, by the first terminal device, the first paging message in the time window comprises: if the time window further comprises a second paging occasion, receiving, by the first terminal device, the first paging message on the second paging occasion, wherein the receiving, by the first terminal device, the first paging message on the second paging occasion comprises: if the second paging occasion corresponds to at least two paging positions, receiving, by the first terminal device, the first paging message at a first paging position corresponding to the second paging occasion, wherein a second paging position corresponding to the second paging occasion is used by a second terminal device to receive a second paging message, wherein the first paging occasion is determined based on an international mobile subscriber identity, IMSI, of the first terminal device. determining, by a first terminal device in a discontinuous reception periodicity, a first paging occasion of the first terminal device; and when channel listening on the first paging occasion fails, receiving, by the first terminal device, a first paging message in a time window, wherein a start position of the time window is determined based on the first paging occasion, and the time window comprises at least one paging occasion, wherein each paging occasion comprised in the time window corresponds to at least one paging position, and different paging positions occupy different bandwidth areas, wherein the receiving, by the first terminal device, the first paging message in the time window comprises: if the time window further comprises a second paging occasion, receiving, by the first terminal device, the first paging message on the second paging occasion, wherein the receiving, by the first terminal device, the first paging message on the second paging occasion comprises: if the second paging occasion corresponds to at least two paging positions, receiving, by the first terminal device, the first paging message at a first paging position corresponding to the second paging occasion, wherein a second paging position corresponding to the second paging occasion is used by a second terminal device to receive a second paging message, wherein the first paging occasion is determined based on an international mobile subscriber identity, IMSI, of the first terminal device. if the time window further comprises a second paging occasion, receiving, by the first terminal device, the first paging message on the second paging occasion, wherein the receiving, by the first terminal device, the first paging message on the second paging occasion comprises: if the second paging occasion corresponds to at least two paging positions, receiving, by the first terminal device, the first paging message at a first paging position corresponding to the second paging occasion, wherein a second paging position corresponding to the second paging occasion is used by a second terminal device to receive a second paging message, wherein the first paging occasion is determined based on an international mobile subscriber identity, IMSI, of the first terminal device. if the second paging occasion corresponds to at least two paging positions, receiving, by the first terminal device, the first paging message at a first paging position corresponding to the second paging occasion, wherein a second paging position corresponding to the second paging occasion is used by a second terminal device to receive a second paging message, wherein the first paging occasion is determined based on an international mobile subscriber identity, IMSI, of the first terminal device.