A method of connection reestablishment, comprising: determining, by a terminal device, whether to perform a connection reestablishment initialization procedure according to whether the terminal device is configured with a conditional handover, CHO,-based candidate cell, including: in response to the terminal device being not configured with the CHO-based candidate cell: performing, by the terminal device, the connection reestablishment initialization procedure; and in response to the terminal device being configured with the CHO-based candidate cell: prohibiting, by the terminal device, execution of the connection reestablishment initialization procedure, including prohibiting execution of: suspending all radio bearers, RBs, except a signalling radio bearer 0, SRB0; resetting medium access control, MAC; releasing configuration of all secondary cells, SCells, in a master cell group, MCG; and releasing special cell configuration, spCellConfig; performing, by the terminal device, cell selection; and performing, by the terminal device, CHO-based cell access according to CHO configuration of the candidate cell that includes the delta configuration of the CHO for the candidate cell and according to the configuration of all the SCells in the MCG and the spCellConfig, in response to the to-be-accessed cell selected by the terminal device being the CHO-based candidate cell. performing, by the terminal device, the connection reestablishment initialization procedure; and in response to the terminal device being configured with the CHO-based candidate cell: prohibiting, by the terminal device, execution of the connection reestablishment initialization procedure, including prohibiting execution of: suspending all radio bearers, RBs, except a signalling radio bearer 0, SRB0; resetting medium access control, MAC; releasing configuration of all secondary cells, SCells, in a master cell group, MCG; and releasing special cell configuration, spCellConfig; performing, by the terminal device, cell selection; and performing, by the terminal device, CHO-based cell access according to CHO configuration of the candidate cell that includes the delta configuration of the CHO for the candidate cell and according to the configuration of all the SCells in the MCG and the spCellConfig, in response to the to-be-accessed cell selected by the terminal device being the CHO-based candidate cell. prohibiting, by the terminal device, execution of the connection reestablishment initialization procedure, including prohibiting execution of: suspending all radio bearers, RBs, except a signalling radio bearer 0, SRB0; resetting medium access control, MAC; releasing configuration of all secondary cells, SCells, in a master cell group, MCG; and releasing special cell configuration, spCellConfig; performing, by the terminal device, cell selection; and performing, by the terminal device, CHO-based cell access according to CHO configuration of the candidate cell that includes the delta configuration of the CHO for the candidate cell and according to the configuration of all the SCells in the MCG and the spCellConfig, in response to the to-be-accessed cell selected by the terminal device being the CHO-based candidate cell.