DOWNLINK TRANSMISSION METHOD AND USER TERMINAL EQUIPMENT
First Claim
1. A method for communication by a user equipment (UE) in a wireless communication system, comprising:
- receiving, from a base station, downlink control information (DCI) including information on a modulation and coding scheme (MCS);
receiving, from the base station, downlink data; and
processing the received data based on the information on the MCS and a MCS table among a plurality of MCS tables,wherein each of the plurality of MCS tables indicates modulation orders and code rates,wherein the plurality of MCS tables comprise a first MCS table which supports 256 QAM and a second MCS table which does not support 256 QAM, andwherein a number of MCS indexes in the first MCS table is equal to a number of MCS indexes in the second MCS table.
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Abstract
Disclosed is a downlink transmission method that includes UE receiving configuration information sent form base station and accordingly adjusting CQI table and MCS table; UE measuring and reporting downlink channel quality indicator information to the base station; with the UE reporting the CQI information according to a backward compatible CQI table or a CQI table which supports 256 QAM modulation; and the UE receiving downlink scheduling information sent from the base station, receiving accordingly downlink data sent from the base station, with the UE processing the MCS information according to a backward compatible MCS table or a MCS table which supports 256 QAM modulation.
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Citations
8 Claims
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1. A method for communication by a user equipment (UE) in a wireless communication system, comprising:
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receiving, from a base station, downlink control information (DCI) including information on a modulation and coding scheme (MCS); receiving, from the base station, downlink data; and processing the received data based on the information on the MCS and a MCS table among a plurality of MCS tables, wherein each of the plurality of MCS tables indicates modulation orders and code rates, wherein the plurality of MCS tables comprise a first MCS table which supports 256 QAM and a second MCS table which does not support 256 QAM, and wherein a number of MCS indexes in the first MCS table is equal to a number of MCS indexes in the second MCS table. - View Dependent Claims (2, 3, 4)
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5. A user equipment (UE) comprising:
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a transceiver; and a controller coupled to the transceiver, wherein the controller is configured to; receive, from a base station, downlink control information (DCI) including information on a modulation and coding scheme (MCS), receive, from the base station, downlink data, and process the received data based on the information on the MCS and a MCS table among a plurality of MCS tables, wherein each of the plurality of MCS tables indicates modulation orders and code rates, wherein the plurality of MCS tables comprise a first MCS table which supports 256 QAM and a second MCS table which does not support 256 QAM, and wherein a number of MCS indexes in the first MCS table is equal to a number of MCS indexes in the second MCS table. - View Dependent Claims (6, 7, 8)
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Specification