Handover processing method and apparatus, and communication device

A handover processing method, comprising:

• receiving, by an edge dispatch node, a domain name system (DNS) resolution request from a user equipment (UE);
• wherein the DNS resolution request carries first information, and the first information includes user identification information, application identification information and service continuity needs;
• reselecting a second edge application server (EAS), which is updated in accordance with user identification information, application identification information and service continuity needs included in the first information, for the UE based on the service continuity needs and the user identification information, and transmitting a DNS resolution response to the UE, wherein the DNS resolution response carries address information of the second edge application server,
• wherein the method further includes:
• storing, by the edge dispatch node, a domain name resolution record;
• wherein the domain name resolution record includes at least mapping relationship between multiple sets of user identification information and address information of a first EAS and the second EAS.

A communication device, comprising:

• a memory, a processor and a computer program stored in the memory and executable on the processor;
• wherein the processor executes the program to perform:
• receiving user plane function (UPF) handover information transmitted by a first edge application server before updating;
• determining whether a pre-defined condition is met, wherein the pre-defined condition comprises that a user equipment (UE) has been switched from a UPF to another UPF;
• transmitting a domain name system (DNS) resolution request carrying first information, to an edge dispatch node, in response to determining by the UE that the pre-defined condition is met, wherein the first information includes user identification information, application identification information and service continuity needs;
• and
• receiving a DNS resolution response from the edge dispatch node, wherein the DNS resolution response includes address information of an updated second edge application server, which is updated in accordance with user identification information, application identification information and service continuity needs included in the first information,
• wherein the UPF handover information is transmitted after the first edge application server receives a notification message from a session management function (SMF), which indicates that accessing UPF of the UE changes.