Patent ID: 9374838
Filing Date: 2016-06-21
CPC Classification: H04W

Claim Text:
1. A mobile station in a wireless communication network, comprising: a radio transmitter/receiver configured to communicate with a base station via a communication channel formed by aggregating a plurality of component carriers; and circuitry configured to control a handover from a first base station to a second base station by the radio transmitter/receiver, wherein, the circuitry is configured to skip a random access procedure, to the second base station, on at least one of two or more component carriers, and, adjust transmission timing on a component carrier on which the random access procedure has been skipped by using timing adjustment information notified for a component carrier of the two or more component carriers on which the random access procedure is carried out, wherein, the circuitry is further configured to measure a channel status for each of the component carriers for a handover, and wherein the two or more component carriers are in closest proximity to each other relative to other available component carriers.