Link failure recovery method and apparatus

A link failure recovery method, comprising:

• sending, by a user equipment, failure report information to a primary base station, wherein the failure report information is an identifier of a failed secondary serving cell or an identifier of a failed data radio bearer (DRB), wherein the failed secondary serving cell is controlled by a secondary base station, and the failed DRB is carried on a radio link between the failed secondary serving cell and the user equipment, so that the primary base station acquires, according to the failure report information, an identifier of a DRB that needs to be reconfigured and reconfigures a parameter for the DRB that needs to be reconfigured;
• receiving, by the user equipment, a reconfiguration message sent by the primary base station, wherein the reconfiguration message comprises the identifier of the DRB that needs to be reconfigured and the parameter reconfigured for the DRB;
• and
• reconfiguring, by the user equipment according to the reconfiguration message, the DRB that needs to be reconfigured.

A base station, comprising:

• a processor, an input device, an output device, and a memory, wherein the input device, the output device, and the memory are connected to the processor;
• and
• the processor comprises:
• a receiving unit, an acquiring unit, a configuring unit, and a sending unit, wherein:
• the receiving unit is configured to receive failure report information sent by a user equipment, wherein the failure report information is an identifier of a failed secondary serving cell or an identifier of a failed data radio bearer (DRB), wherein the failed secondary serving cell is controlled by a secondary base station, and the failed DRB is carried on a radio link between the failed secondary serving cell and the user equipment,
• the acquiring unit is configured to acquire, according to the failure report information, an identifier of a DRB that needs to be reconfigured,
• the configuring unit is configured to reconfigure a parameter for the DRB that needs to be reconfigured, and
• the sending unit is configured to send a first reconfiguration message to the user equipment, wherein the first reconfiguration message comprises the identifier of the DRB that needs to be reconfigured and the parameter reconfigured for the DRB.

A user equipment, comprising:

• a processor, an input device, an output device, and a memory, wherein the input device, the output device, and the memory are connected to the processor;
• and
• the processor comprises:
• a sending unit, a receiving unit, and a configuring unit, wherein:
• the sending unit is configured to send failure report information to a primary base station, wherein the failure report information is an identifier of a failed secondary serving cell or an identifier of a failed data radio bearer DRB, wherein the failed secondary serving cell is controlled by a secondary base station, and the failed DRB is carried on a radio link between the failed secondary serving cell and a user equipment, so that the primary base station acquires, according to the failure report information, an identifier of a DRB that needs to be reconfigured and reconfigures a parameter for the DRB that needs to be reconfigured,
• the receiving unit is configured to receive a reconfiguration message sent by the primary base station, wherein the reconfiguration message comprises the identifier of the DRB that needs to be reconfigured and the parameter reconfigured for the DRB, and
• the configuring unit is configured to reconfigure, according to the reconfiguration message, the DRB that needs to be reconfigured.