Patent ID: 8743811
Filing Date: 2014-06-03
Classification: H04L,H04W

Abstract:
1. A method for a wireless communication between a user equipment and a base station in a wireless communication system supporting uplink and downlink multi carriers, the method comprising: performing initial access through one of at least two downlink component carriers among multiple downlink component carriers including the at least two downlink component carriers through which the user equipment is allowed to perform the initial access; and transmitting via an uplink component carrier allocated to the user equipment, wherein a carrier identifier is applied to an uplink transmission via the uplink component carrier, wherein the system pre-defines one-to-one correspondence between multiple downlink component carriers and multiple uplink component carriers, and wherein the downlink component carrier through which the initial access is performed and the uplink component carriers allocated to the user equipment do not match the one-to-one correspondence pre-defined by the system, wherein the at least two downlink component carriers include a first downlink component carrier having a first carrier identifier and a second downlink component carrier having a second carrier identifier, wherein the initial access is performed through the second downlink component carrier, and wherein the carrier identifier applied to the uplink transmission is the first carrier identifier and is obtained from the second downlink component carrier.