METHOD AND APPARATUS FOR CONFIGURING SECONDARY CELL GROUP

This application provides a secondary cell group configuration method and apparatus. The method includes: receiving an LTE RRC reconfiguration message, where the LTE RRC reconfiguration message includes an NR configuration parameter, and the NR configuration parameter is used to configure an SCG; sending indication information when a terminal device does not support a configuration of the SCG, where the indication information is used to indicate that the SCG is abnormal. After receiving the indication information, if the network device determines that the terminal device needs to release the SCG, the network device may indicate the terminal device to release the SCG. After releasing the SCG, the terminal device does not need to send a 4G network re-establishment request again, to avoid frequently re-establishing a 4G network connection, or reduce a quantity of times of frequently re-establishing a 4G network connection, and improve network connection quality.