Method, device, and system for configuring component carrier in carrier aggregation scenario

A method for configuring a component carrier in a carrier aggregation scenario, comprising:

• obtaining information about a component carrier supported by a user equipment (UE), wherein the information about the component carrier supported by the UE comprises channel quality of each component carrier;
• selecting a candidate component carrier according to the information about the component carrier and configuring a resource parameter that is applied to the candidate component carrier to form configuration information about the candidate component carrier, wherein selecting the candidate component carrier according to the information about the component carrier comprises:
• obtaining a load of each component carrier supported by the UE, and determining a component carrier whose load is smaller than a threshold and channel quality is larger than a threshold as the candidate component carrier;
• and
• delivering the configuration information about the candidate component carrier to the UE;
• if a resource is in an active state on a certain component carrier, delivering to the UE a resource activation command indicating that the resource is on another component carrier, so that the UE uses the resource activation command to apply the resource on said another component carrier, and releases a resource on a certain original component carrier, wherein the certain component carrier and said another component carrier are candidate component carriers.

A base station, comprising:

• a monitoring module, configured to monitor broadcast system information;
• an obtaining module, adapted to obtain information about a component carrier supported by a user equipment (UE), wherein the information about the component carrier supported by the UE comprises channel quality of each component carrier;
• a selecting module, configured to select a candidate component carrier according to the information about the component carrier, wherein the selecting module comprises:
• a load obtaining unit, configured to obtain a load of each component carrier supported by the UE;
• and a determining unit, configured to determine a component carrier whose load is smaller than a threshold as the candidate component carrier;
• a configuring module, configured to configure a resource parameter that is applied to the candidate component carrier to form configuration information about the candidate component carrier;
• and
• a delivering module, configured to deliver the configuration information about the candidate component carrier to the UE.

A mobile terminal, comprising:

• a monitoring module, configured to monitor broadcast system information;
• a reporting module, configured to report information about a supported component carrier to a base station, wherein the information about the component carrier comprises channel quality of each component carrier;
• and
• a configuration receiving module, configured to receive configuration information about a candidate component carrier, wherein the candidate component carrier is selected according to the information about the component carrier, wherein the information comprises:
• a load of each component carrier supported by the mobile terminal, and a component carrier whose load is smaller than a threshold, wherein the configuration information about the candidate component carrier is delivered by the base station.