Patent ID: 9357420
Filing Date: 2016-05-31
CPC Classification: H04L,H04W

Claim Text:
1. A method of reporting a channel state in a wireless communication system, the method comprising: monitoring, by a user equipment (UE), a physical downlink control channel (PDCCH) for first downlink control information (DCI) including a request for a transmission of a first type channel quality indicator (CQI), wherein the first DCI is masked with a first network temporary identifier (RNTI) associated with a UE group; determining whether a request for a transmission of a second type CQI is received at the UE, wherein the second type CQI is included in second DCI being masked with a second RNTI assigned to the UE; and if the transmission of the first type CQI and the transmission of the second type CQI from the UE are requested, reporting, by the UE, only the second type CQI to a base station.