Method and apparatus for data modulation and coding for new radio

Abstract

Provided is a method of transmitting scheduling control information on a physical uplink shared channel by a base station. The method includes transmitting control information indicating a specific modulation and coding scheme (MCS) index corresponding to modulation and coding scheme (MCS) information to be applied to the physical uplink shared channel through a physical downlink control channel, and receiving the physical uplink shared channel modulated based on specific MCS information determined using one of two or more MCS tables containing the specific MCS index and modulation order information corresponding to at least the MCS index.

What is claimed is: 
     
         1 . A communication method, comprising:
 receiving, from a base station, first control information through a first physical downlink control channel (PDCCH);   determining that a Cyclic Redundancy Check (CRC) of the first PDCCH is scrambled with an MCS-C-RNTI;   in response to determining that the CRC of the first PDCCH is scrambled with the MCS-C-RNTI, selecting a first MCS table among two or more MCS tables, wherein the two or more MCS tables include the first MCS table and a second MCS table, the first MCS table includes a plurality of modulation orders, a highest modulation order of the first MCS table is 64 quadrature amplitude modulation (QAM), the second MCS table includes a plurality of modulation orders, and a highest modulation order of the second MCS table is 256 QAM;   obtaining downlink data transmitted from a base station through a physical downlink shared channel (PDSCH), based on the first control information and the first MCS table;   receiving, from the base station, second control information through a second PDCCH;   determining that a CRC of the second PDCCH is scrambled with the MCS-C-RNTI;   in response to determining that the CRC of the second PDCCH is scrambled with the MCS-C-RNTI, selecting the first MCS table among the plurality of MCS tables; and   transmitting, to the base station, uplink data through a physical uplink shared channel (PUSCH) based on the second control information and the first MCS table.   
     
     
         2 . The method of  claim 1 , wherein the two or more MCS tables is determined by a type of search space through which physical downlink control channel transmission is performed. 
     
     
         3 . The method of  claim 2 , wherein the type of search space is a UE-specific search space. 
     
     
         4 . The method of  claim 1 , further comprising receiving the MCS-C-RNTI from the base station using RRC signaling. 
     
     
         5 . The method of  claim 1 , wherein the downlink data is transmitted using a plurality of code block groups. 
     
     
         6 . The method of  claim 1 , wherein the uplink data is transmitted using a plurality of code block groups. 
     
     
         7 . A communication device, comprising:
 a memory; and   a processor operably coupled to the memory,   wherein the processor is configured to:
 cause the device to receive, from a base station, first control information through a first physical downlink control channel (PDCCH); 
 determine that a Cyclic Redundancy Check (CRC) of the first PDCCH is scrambled with an MCS-C-RNTI; 
   in response to determining that the CRC of the first PDCCH is scrambled with the MCS-C-RNTI, select a first MCS table among two or more MCS tables, wherein the two or more MCS tables include the first MCS table and a second MCS table, the first MCS table includes a plurality of modulation orders, a highest modulation order of the first MCS table is 64 quadrature amplitude modulation (QAM), the second MCS table includes a plurality of modulation orders, and a highest modulation order of the second MCS table is 256 QAM;
 obtain downlink data transmitted from a base station through a physical downlink shared channel (PDSCH), based on the first control information and the first MCS table; 
 cause the device to receive, from the base station, second control information through a second PDCCH; 
 determine that a CRC of the second PDCCH is scrambled with the MCS-C-RNTI; 
 in response to determining that the CRC of the second PDCCH is scrambled with the MCS-C-RNTI, select the first MCS table among the plurality of MCS tables; and 
 cause the device to transmit, to the base station, uplink data through a physical uplink shared channel (PUSCH) based on the second control information and the first MCS table. 
   
     
     
         8 . The device of  claim 7 , wherein the two or more MCS tables is determined by a type of search space through which physical downlink control channel transmission is performed. 
     
     
         9 . The device of  claim 8 , wherein the type of search space is a UE-specific search space. 
     
     
         10 . The device of  claim 7 , wherein the processor is further configured to cause the device to receive the MCS-C-RNTI from the base station using RRC signaling. 
     
     
         11 . The device of  claim 7 , wherein the downlink data is transmitted using a plurality of code block groups. 
     
     
         12 . The device of  claim 7 , wherein the uplink data is transmitted using a plurality of code block groups. 
     
     
         13 . A communication device, comprising:
 a memory; and   a processor operably coupled to the memory,   wherein the processor is configured to:
 generate first control information; 
   select a first MCS table among two or more MCS tables, wherein the two or more MCS tables include the first MCS table and a second MCS table, the first MCS table includes a plurality of modulation orders, a highest modulation order of the first MCS table is 64 quadrature amplitude modulation (QAM), the second MCS table includes a plurality of modulation orders, and a highest modulation order of the second MCS table is 256 QAM;
 cause the device to transmit, to a user equipment (UE), the first control information through a first physical downlink control channel (PDCCH), wherein a Cyclic Redundancy Check (CRC) of the first PDCCH is scrambled with an MCS-C-RNTI; 
 cause the device to transmit, to the UE, downlink data through a physical downlink shared channel (PDSCH), based on the first control information and the first MCS table; 
 generate second control information; 
 cause the device to transmit, to the UE, the second control information through a second physical downlink control channel (PDCCH), wherein a CRC of the second PDCCH is scrambled with the MCS-C-RNTI; 
 cause the device to obtain, from the UE, uplink data received through a physical uplink shared channel (PUSCH), based on the second control information and the first MCS table. 
   
     
     
         14 . The device of  claim 13 , wherein the two or more MCS tables is determined by a type of search space through which physical downlink control channel transmission is performed. 
     
     
         15 . The device of  claim 14 , wherein the type of search space is a UE-specific search space. 
     
     
         16 . The device of  claim 13 , wherein the processor is further configured to cause the device to transmit the MCS-C-RNTI to the UE using RRC signaling. 
     
     
         17 . The device of  claim 13 , wherein the downlink data is transmitted using a plurality of code block groups. 
     
     
         18 . The device of  claim 13 , wherein the uplink data is transmitted using a plurality of code block groups.