Transmission method and network device

An apparatus, comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the apparatus to perform operations comprising:
• receiving a second message from a second network node, wherein the second message comprises identification information of a terminal device, and wherein the identification information of the terminal device is in association with context information of the terminal device that is stored at the apparatus;
• retrieving based on the identification information of the terminal device, the context information of the terminal device stored at the apparatus;
• and,
• replacing an original cell radio network temporary identifier with a new cell radio network temporary identifier allocated by the apparatus for the context information of the terminal device.

An apparatus, comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to cause the apparatus to perform operations comprising:
• receiving a first message from a first network node, wherein the first message is from a terminal device and wherein the first message comprises an original cell radio network temporary identifier allocated by the first network node for the terminal device;
• sending a second message to the first network node, wherein the second message comprises identification information of the terminal device, and wherein the identification information of the terminal device is in association with context information of the terminal device that is stored at the first network node.