Patent ID: 8644182
Filing Date: 2014-02-04
Classification: H04L,H04W

Abstract:
1. A method for reporting channel quality by a device in a wireless communication system, the method comprising: receiving, by the device, an uplink grant on a physical downlink control channel (PDCCH) through one of a plurality of downlink component carriers (CCs), the uplink grant including an uplink allocation and a channel quality indicator (CQI) request indicating a triggering of CQI reporting, wherein, when a value of the CQI request is set to a first value, the CQI request indicates the triggering of CQI reporting is for one of the plurality of downlink CCs linked to the uplink CC, when the value of the CQI request is set to a second value, the CQI request indicates the triggering of CQI reporting is for a first set of downlink CCs of the plurality of downlink CCs, and when the value of the CQI request is set to a third value, the CQI request indicates the triggering of CQI reporting is for a second set of downlink CCs of the plurality of downlink CCs; and reporting, by the device, a CQI for a downlink CC indicated by the CQI request through an uplink CC based on the uplink allocation.