Dentons US LLP
Method for initiating a random access procedure in a carrier aggregation system and a device therefor
The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for initiating a random access procedure in a carrier aggregation system, the method comprising: receiving, from a network, an Radio Resource Control (RRC) signal which configures a new Secondary Cell (SCell) with Physical Uplink Control Channel (PUCCH) resource; checking whether a Time Alignment Timer (TAT) associated with a Timing Advance Group (TAG) to which the new SCell with the PUCCH resource belong is running or not; and initiating a random access procedure on the New SCell in the TAG if the associated TAT is not running.
LG Electronics Inc.
H H H H
H04L H04W H04W H04L
inventional inventional inventional inventional
Sunyoung Seungjune
Lee Yi