Base station handover method, system, and computer storage medium

A base station handover system, comprising:

• a first Access and Mobility management Function AMF, configured to receive handover request information sent from a first base station, wherein the handover request information is used to request a handover of a user equipment from the first base station to a second base station,
• the first AMF further being configured to send a handover preparation request to the second base station requesting target resources for the user equipment under the condition that there is no need for the user equipment to carry out a cross-AMF handover, wherein the handover preparation request carries the handover request information and session information of the user equipment, and during the cross-AMF handover, the AMF of the user equipment changes from the first AMF to a second AMF;
• and
• the second AMF, configured to receive the handover request information sent from the first AMF under the condition that there is a need for the user equipment to carry out the cross-AMF handover, and send a handover preparation request to the second base station requesting the target resources for the user equipment.

A base station handover method, comprising:

• receiving, by a first Access and Mobility management Function AMF, handover request information sent from a first base station, wherein the handover request information is used to request a handover of a user equipment from the first base station to a second base station;
• sending, by the first AMF, a handover preparation request to the second base station requesting target resources for the user equipment under the condition that there is no need for the user equipment, wherein the handover preparation request carries the handover request information and session information of the user equipment, and during the cross-AMF handover, an AMF of the user equipment changes from the first AMF to a second AMF;
• and
• sending, by the first AMF, the handover request information to the second AMF under the condition that there is a need for the user equipment to carry out the cross-AMF handover, wherein the handover request information is used for the second AMF to send the handover preparation request to the second base station requesting the target resources for the user equipment.

A base station handover method, comprising:

• receiving, by a second Access and Mobility management Function AMF, handover request information sent from the first AMF, wherein the received handover request information is sent after the first AMF receives the handover request information sent from the first base station and when the user equipment needs to carry out a cross-AMF handover;
• the handover request information received by the first AMF is used to request a handover of a user equipment from the first base station to a second base station;
• during the cross-AMF handover, the AMF of the user equipment changes from the first AMF to a second AMF;
• and
• sending a handover preparation request to the second base station requesting target resources for the user equipment.