Satellite Tracking Area Update Method and Related Apparatus

A method, comprising:

• receiving, by user equipment, at least one tracking area code (TAC) that is broadcast by a network device, wherein the TAC comprises geographical location information, and the geographical location information indicates a geographical location of a preset location point in a tracking area (TA) corresponding to the TAC;
• determining, by the user equipment based on the TAC and a tracking area list (TAL), whether the TAL needs to be updated;
• and
• in response to determining that the TAL needs to be updated, sending, by the user equipment, a tracking area update request to the network device;
• and
• receiving, by the user equipment, a response message of the tracking area update request that is returned by the network device.

A method, comprising:

• broadcasting, by a network device, at least one tracking area code (TAC) to user equipment, wherein the TAC comprises geographical location information, and the geographical location information indicates a geographical location of a preset location point in a tracking area (TA) corresponding to the TAC;
• receiving, by the network device, a tracking area update request from the user equipment, wherein the tracking area update request is determined by the user equipment based on the TAC and a tracking area list (TAL) of the user equipment;
• and
• returning, by the network device, a response message of the tracking area update request to the user equipment.

An apparatus, comprising:

• at least one processor, wherein the at least one processor is coupled to a non-transitory memory storing a computer program that is executable by the at least one processor, and the at least one processor, when executing the computer program, is configured to:
• receive at least one tracking area code (TAC) that is broadcast by a network device, wherein the TAC comprises geographical location information, and the geographical location information indicates a geographical location of a preset location point in a tracking area (TA) corresponding to the TAC;
• determine, based on the TAC and a tracking area list (TAL), whether the TAL needs to be updated;
• in response to determining that the TAL needs to be updated, send a tracking area update request to the network device;
• and
• receive a response message, of the tracking area update request, returned by the network device.