Method for setting a carrier indication field in a multi-carrier system

摘要

Disclosed is a method for setting a carrier indication field indicating an element carrier in a multi-carrier system using a plurality of element carriers. The method includes: transmitting a value of a carrier indication field (CIF) and first CIF setting information that indicates a first mapping relationship between element carriers; transmitting downlink control information (DCI) including a carrier indication field; and transmitting a value of a CIF and second CIF setting information that indicates a second mapping relationship between element carriers, wherein the carrier indication field is a field indicating any one of the plurality of element carriers, and at least one element carrier is mapped with the same carrier indication field value in the first and second mapping relationships.

主权项

1. A method of setting a carrier indication field (CIF) that indicates a component carrier in a multi-carrier system that uses a plurality of component carriers, the method performed by a base station and comprising:
transmitting, to a user equipment (UE), information that changes a number of component carriers assigned to the UE, wherein the information maps a to-be-assigned component carrier to a CIF value and maps the CIF value to each of an Absolute Radio Frequency Channel Number (ARFCN) and a physical index, and wherein, when the number of component carriers assigned to the UE is changed by the information, at least one of the assigned component carriers is mapped to a same CIF value before and after the change.