Patent ID: 9094905
Filing Date: 2015-07-28
Classification: H04L,H04W

Abstract:
1. A method comprising: determining that a predefined event has occurred; triggering a determination of a timing advance for a second component carrier relative to a timing advance of a first component carrier based upon occurrence of the predefined event, wherein the component carriers are concurrently allocated to a mobile terminal; and utilizing the timing advance for the second component carrier to synchronize communications on the second component carrier between the mobile terminal and a network, wherein the predefined event is at least one of receiving an activation command to activate the second component carrier, receiving signaling indicating an uplink grant reception, determining that a timing advance of the first component carrier has been adjusted, or determining that the timing advance for the second component carrier is determined by accessing a random access channel (RACH) such that the timing advance of the first component carrier may be determined based upon the timing advance of the second component carrier.