Patent ID: 9698960
Date: 2017-07-04
CPC Classifications: H04L,H04W

Claim:
1. A method for decoding data in a wireless access system, the method performed by a user equipment (UE) and comprising: receiving a higher layer signal including an indication that 256 quadrature amplitude modulation (256QAM) is to be enabled; receiving, via a physical downlink control channel (PDCCH), downlink control information (DCI) including an index field representing a modulation and coding scheme (MCS); receiving data via a physical downlink shared channel (PDSCH) scheduled by the PDCCH; and decoding the received data using the MCS represented by the index field, wherein the UE has a first MCS index table supporting up to 64 quadrature amplitude modulation (64QAM) and a second MCS index table supporting up to the 256QAM, and wherein the received data is decoded based on the first MCS index table even though the second MCS index table has been enabled to the UE, when the DCI has been scrambled with a semi persistent scheduling radio network temporary identifier (SPS-RNTI).