Processing method of user equipment, processing method of mobility management entity, user equipment, mobility management entity, and communications system

A processing method, comprising:

• receiving, by a mobility management entity, an indication sent by a user equipment in an active status, wherein the indication is used to trigger the mobility management entity to send a request message to a base station, and the request message is used to request the base station to send a message for obtaining user equipment capability of the user equipment to the user equipment;
• and
• requesting, by the mobility management entity according to the indication, the base station to send the message for obtaining the user equipment capability of the user equipment to the user equipment wherein the user equipment sends changed user equipment capability of the user equipment to the base station when detecting that the user equipment capability of the user equipment has changed, and the user equipment capability of the user equipment comprises at least one of the following:
• a connection status between the user equipment and a power supply, and
• an air interface status of the user equipment.

A user equipment, comprising:

• a processor, configured to detect whether user equipment capability of the user equipment has changed wherein the user equipmen is in an active status;
• a transmitter, configured to send the changed user equipment capability of the user equipment to a base station when the processor detects that the use equipment capability of the user equipment has changed;
• and
• wherein the user equipment capability of the user equipment comprises at least one of the following:
• a connection status between the user equipment and a power supply, and
• an air interface status of the user equipment.

A mobility management entity, comprising:

• a receiver, configured to receive an indication sent by a user equipment in an active status, wherein the indication is used to trigger the mobility management entity to send a request message to a base station, and the request message is used to request the base station to send a message for obtaining user equipment capability of the user equipment to the user equipment;
• and
• a processor, configured to request, according to the indication, the base station to send the message for obtaining the user equipment capability of the user equipment to the user equipment wherein the user equipment sends changed user equipment capability of the user equipment to the base station when detecting that the user equpment capability of the user equipment has changed, and the user equipment capability of the user equipment comprises at least one of the following:
• a connection status between the user equipment and a power supply, and
• an air interface status of the user equipment.