Patent ID: 9750023
Date: 2017-08-29
CPC Classifications: H04L,H04W

Claim:
1. An electronic device in a base station in a carrier aggregation communication network, comprising: circuitry configured to update a primary component carrier (PCC) and/or a secondary component carrier that support communications with a user equipment in a carrier aggregation communication scheme, including a transmitter configured to transmit to the user equipment Radio Resource Control (RRC) reconfiguration information that includes updated PCC information and mobility control information, wherein the circuitry is configured to select an update component carrier according to a distribution mode identifying a relationship between coverage ranges of component carriers in the carrier aggregation communication network, the circuitry is configured to reconfigure a Media Access Control (MAC) layer, a Packet Data Convergence Protocol (PDCP) layer and a Radio Link Control (RLC) layer, and update a security key by the mobility control information in the RRC reconfiguration information, and the circuitry is configured to reconfigure a newly identified PCC as the update component carrier by the RRC reconfiguration information.