Dynamic Carrier Activation for LTE-A Power and Delay Optimization

The patent implements dynamic carrier activation and deactivation based on traffic volume demands. The eNB activates additional carriers only when needed and deactivates them when traffic volume decreases, allowing the system to adapt the bandwidth configuration dynamically rather than maintaining all carriers active continuously, thus resolving the contradiction between bandwidth availability and power consumption.

The patent changes the operational state parameter of carriers from a static configuration to a dynamic activation/deactivation state. By transitioning carriers between active and inactive states based on traffic conditions, the system optimizes the balance between providing sufficient bandwidth and reducing power consumption when full bandwidth is not required.

The patent performs preliminary configuration of additional carriers through high layer signaling before activation is needed. The eNB pre-configures carrier parameters and sends configuration information to the UE, so that when activation is required, the UE can quickly activate the carriers without performing complex configuration procedures at activation time, thus reducing the complexity burden during dynamic activation.

The patent separates the carrier management process into distinct phases: configuration phase (where carriers are set up in advance) and activation phase (where carriers are activated or deactivated based on traffic needs). This segmentation allows the complex configuration to be performed once during setup, while the simpler activation/deactivation operations are performed dynamically, reducing the complexity of each individual operation.