Communication method between core network device and terminal in communication system

A communication method, comprising:

• receiving, by a first access network device from a core network device, signaling destined for a terminal, wherein the terminal is in a radio resource control (RRC) inactive mode;
• sending, by the first access network device, a first paging message to a second access network device for paging the terminal, wherein the first access network device and the second access network device are in same paging area;
• receiving, by the first access network device from the second access network device, first indication information indicating that the terminal has connected to the second access network device;
• and
• sending, by the first network device, second indication information to the core network device;
• wherein the second indication information indicates that the terminal has connected to a different access network device than the first access network device;
• and
• wherein the second indication information is carried in a signaling failure message, and the signaling failure message indicates that the signaling is not sent to the terminal successfully.

A first access network device, comprising:

• a transceiver, a processor, and a memory storing program codes for execution by the processor;
• wherein when executed by the processor, the program codes cause the transceiver to:
• receive, from a core network device, signaling destined for a terminal in a radio resource control (RRC) inactive mode;
• send a first paging message to a second access network device for paging the terminal, wherein the first access network device and the second access network device are in same paging area;
• receive, from the second access network device, first indication information indicating that the terminal has connected to the second access network device;
• and
• send second indication information to the core network device;
• wherein the second indication information indicates that the terminal has connected to a different access network device than the first access network device;
• and
• wherein the second indication information is carried in a signaling failure message, and the signaling failure message indicates that the signaling is not sent to the terminal successfully.