Method and apparatus for receiving data
AssigneeLG Electronics Inc.
InventorsBonghoe Kim, Yunjung Yi, Dongyoun Seo
Life of this patent
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Abstract
Disclosed are a method and apparatus for receiving data. The method for receiving data of a terminal includes the steps of: receiving, from a base station, information that a modulation scheme used in an allocated resource block is 256 quadrature amplitude modulation (QAM); determining a modulation and coding scheme (MCS) index and first resource allocation information on the allocated resource block on the basis of downlink control information (DCI); determining an ITBS on the basis of the MCS index; determining second resource allocation information on the basis of the first resource allocation information; and determining the transmission block size on the basis of the ITBS and second resource allocation information.
Claims8
A method for receiving data by a user equipment (UE), the method comprising:
- receiving, from a base station, information that a modulation scheme used in an allocated resource block is 256 QAM (quadrature amplitude modulation);
- determining first resource allocation information and an MCS (modulation and coding scheme) index of the allocated resource allocation based on DCI (downlink control information);
- determining a ITBS based on the MCS index, wherein the ITBS indicates a data block size;
- determining second resource allocation information based on the first resource allocation information;
- and
- determining the size of a transport block based on the second resource allocation information and the ITBS, wherein the second resource allocation information is determined by the following Equation:
- NPRB=a·N′PRB+b
- wherein, a and b are values determined based on the MCS index, and a and b are not simultaneously zeros,
- wherein the N′PRB is the first resource allocation information and the NPRB is the second resource allocation information,
- wherein the first resource allocation information is information on resource allocation in a case where a modulation scheme other than the 256QAM is used, and
- wherein the second resource allocation information is information on resource allocation in a case where a modulation scheme using the 256QAM is used.
A user equipment (UE) operating in a wireless communication system, the UE comprising:
- a radio frequency (RF) unit for transmitting or receiving a radio signal;
- and
- a processor that:
- controls the RF unit to receive, from a base station, information that a modulation scheme used in an allocated resource block is 256QAM(quadrature amplitude modulation),
- determines first resource allocation information and an MCS (modulation and coding scheme) index of the allocated resource allocation based on DCI (downlink control information),
- determines a ITBS based on the MCS index, to determine second resource allocation information based on the first resource allocation information, wherein the ITBS indicates a data block size, and
- determines the size of a transport block based on the second resource allocation information and the ITBS, wherein the second resource allocation information is determined by the following Equation:
- NPRB=a·N′PRB+b
- wherein, a and b are values determined based on the MCS index, and a and b are not simultaneously zeros,
- wherein the N′ PRB is the first resource allocation information and the NPRB is the second resource allocation information,
- wherein the first resource allocation information is information on resource allocation in a case where a modulation scheme other than the 256QAM is used, and
- wherein the second resource allocation information is information on resource allocation in a case where a modulation scheme using the 256QAM is used.
Dependencies are inferred from the claim text.