Monitoring the radio link and a radio link failure processing method and a user equipment

The present invention provides a method for monitoring a radio link and a radio link failure handling in the secondary serving cell. In wireless networks, user equipment and a base station (eNB) to establish a radio resource control connection, and a plurality of component carriers is configured to apply a plurality of carriers serving cell aggregation. User equipment radio link monitoring primary serving cell, the radio link monitoring and also in the secondary serving cell. Wherein the secondary serving cell belonging to one or more component carriers comprising a set of component carriers, the set of component carrier as a reference cell. When the secondary cell is lower than a preset standard performance services, the eNB and the user equipment to perform certain operations in the secondary serving cell or all the component carriers in the set of component carriers.