Paging message transmission method and apparatus

A paging message transmission method, comprising:

• enabling, by a communications device, a beam update mode when a first preset condition is met;
• reporting, by the communications device, beam information, wherein the beam information comprises information about at least one transmit beam, and the information about the at least one transmit beam comprises information about a first beam;
• and
• receiving, by the communication device, a paging message over a second beam, wherein the second beam corresponds to the first beam, wherein
• the first preset condition comprises at least one of the following:
• a best receive beam of the communications device does not change within a preset duration, wherein the best receive beam is a receive beam with a best received signal quality;
• a frequency at which the best receive beam of the communications device changes is less than or equal to a first preset frequency;
• or
• the communications device has received a first indication message sent by a network device, wherein the first indication message is used to indicate to the communications device to enable the beam update mode.

A communications device, comprising:

• a transmitter, configured to report beam information, wherein the beam information comprises information about at least one receive beam, and the information about the at least one receive beam comprises information about a second beam;
• a receiver, configured to receive a paging message over the second beam;
• and
• a processor, configured to enable a beam update mode when a first preset condition is met, wherein
• the first preset condition comprises at least one of the following:
• a best receive beam of the communications device does not change within a preset duration, wherein the best receive beam is a receive beam with a best received signal quality;
• a frequency at which the best receive beam of the communications device changes is less than or equal to a first preset frequency;
• or
• the communications device has received a first indication message sent by a network device, wherein the first indication message is used to indicate to the communications device to enable the beam update mode.