Dual connection communication method in wireless network, apparatus, and system
摘要
說明書
According to another aspect, an embodiment of the present invention provides a communication method in a wireless network. The method includes: establishing, by a first access network device, a radio resource control RRC connection to a terminal device, where the RRC connection is one of dual connections, and the dual connections further include a communication connection between the terminal device and a second access network device; and sending, by the first access network device, first configuration information to the terminal device, where the first configuration information includes signaling radio bearer SRB configuration information of the second access network device and a trigger condition for using the SRB configuration information, and the SRB configuration information of the second access network device is used by the terminal device to establish an RRC connection to the second access network device when the trigger condition is met. According to the method provided in this embodiment, the first access network device can send the SRB configuration information of the second access network device and the trigger condition to the terminal device in advance. In this way, when the trigger condition is met, the terminal device can use the SRB configuration information of the second access network device to quickly restore the RRC connection, thereby shortening a latency of restoring a dual-connectivity working mode. In addition, transmission is not interrupted in a dual-connection restoration process. Therefore, a low-latency requirement is met.
