Paging method, apparatus, and system

An apparatus in a base station, the apparatus comprising:

• a processor;
• and
• a storage medium including executable instructions, wherein the executable instructions, when executed by the processor, cause the apparatus to:
• send a broadcast message to a terminal device, wherein the broadcast message comprises a first radio frame parameter,
• determine that the terminal device is in a coverage enhancement mode,
• determine a start paging frame (PF) and a start paging occasion (PO) according to the first radio frame parameter, and
• send the paging message to the terminal device according to the start PF, the start PO, and a first subframe set, wherein the first subframe set comprises M first subframes in which the paging message can be sent and the first subframe set follows the start PO of the start PF, and M is a quantity of times that the apparatus needs to repeatedly send the paging message.

A method, comprising:

• receiving, by a terminal device, a broadcast message from a base station, wherein the broadcast message comprises a first radio frame parameter;
• in a coverage enhancement mode, determining, by the terminal device, a start paging frame (PF) and a start paging occasion (PO) according to the first radio frame parameter;
• and
• receiving, by the terminal device, according to the start PF, the start PO, and a first subframe set, the paging message from the base station, wherein the first subframe set comprises M first subframes in which the paging message can be received and the first subframe set follows the start PO of the start PF, and M is a quantity of times that the paging message needs to be repeatedly received.

A paging method, comprising:

• sending, by a base station, a broadcast message to a terminal device, wherein the broadcast message comprises a first radio frame parameter;
• determining, by the base station, that the terminal device is in a coverage enhancement mode;
• determining, by the base station, a start paging frame (PF) and a start paging occasion (PO) according to the first radio frame parameter;
• and
• sending, by the base station, the paging message to the terminal device according to the start PF, the start PO, and a first subframe set, wherein the first subframe set comprises M first subframes in which the paging message can be sent and the first subframe set follows the start PO of the start PF, and M is a quantity of times that the base station needs to repeatedly send the paging message.