Mobility management method for low overhead state

An apparatus, comprising:

• at least one processor and a non-transitory memory, wherein the memory stores an execution instruction, and when the at least one processor executes the execution instruction to enable the apparatus to perform the steps of:
• receiving a message, wherein the message indicates entry of a low overhead state and includes a source identifier from a first base station to which a first cell belongs, wherein a terminal is in a connected state in the first cell, the source identifier comprises a first part identifying the terminal in the first base station and a second part identifying the first base station;
• entering the low-overhead state, wherein the low-overhead state is state in which a connection context of the terminal is stored and the terminal camps on a cell according to a cell reselection criterion during movement;
• and
• determining that a current selected public land mobile network (PLMN) of the terminal does not belong to an equivalent PLMN of the terminal and in response, exiting from the low-overhead state and entering an idle state.

A non-transitory computer-readable storage medium comprising instructions that, when executed, cause an apparatus to implement the following operations:

• receiving a message, wherein the message indicates entry of a low overhead state and includes a source identifier from a first base station to which a first cell belongs, wherein a terminal is in a connected state in the first cell, the source identifier comprises a first part identifying the terminal in the first base station and a second part identifying the first base station;
• entering the low-overhead state, wherein the low-overhead state is state in which a connection context of the terminal is stored and the terminal camps on a cell according to a cell reselection criterion during movement;
• and
• determining that a current selected public land mobile network (PLMN) of the terminal does not belong to an equivalent PLMN of the terminal and, in response, exiting from the low-overhead state and entering an idle state.