Dual connection re-establishment method, readable storage medium, and base station

A node, comprising:

• one or more processors;
• a memory storing one or more programs;
• wherein
• the one or more programs, when executed by the one or more processors, cause the one or more processors to carry out a dual connection re-establishment method, which is applied to a master node (MN) side, the method comprising:
• sending a configuration information request to a target secondary node (SN) in response to a radio resource control (RRC) connection re-establishment completion instruction sent by a user equipment (UE);
• receiving first configuration information fed back by the target SN;
• and
• sending the first configuration information, and second configuration information corresponding to the MN to the UE for the UE to complete the RRC connection reconfiguration with the MN and the target SN according to the first configuration information and the second configuration information;
• prior to sending a configuration information request to a target SN, the method further comprising:
• determining a source SN to which the UE was connected previously as the target SN in response to the UE not needing to switch the SN;
• wherein in response to the source SN being determined as the target SN, sending a configuration information request to a target SN comprises:
• sending the configuration information request and a first instance maintenance request to the target SN for the target SN to feed back the first configuration information and maintain a UE instance.

A dual connection re-establishment method, which is applied to a UE side, the method comprising:

• sending a radio resource control (RRC) connection re-establishment completion instruction to a master node (MN) for the MN to send a configuration information request to a target secondary node (SN) and receive first configuration information fed back by the target SN;
• receiving the first configuration information sent by the MN and second configuration information corresponding to the MN;
• and
• completing RRC connection reconfiguration with the MN and the target SN according to the first configuration information and the second configuration information;
• prior to sending a configuration information request to a target SN, the method further comprising:
• determining a source SN to which the UE was connected previously as the target SN in response to the UE not needing to switch the SN;
• wherein in response to the source SN being determined as the target SN, sending a configuration information request to a target SN comprises:
• sending the configuration information request and a first instance maintenance request to the target SN for the target SN to feed back the first configuration information and maintain a UE instance.