Apparatus and method for encoding and decoding channel in communication or broadcasting system
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology; such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method by a terminal, a method by a base station, a terminal, and a base station in a wireless communication system are provided. The method by the terminal includes receiving from a base station downlink control information including modulation and coding scheme (MCS) information; identifying a first transport block size based on the downlink control information; and identifying a second transport block size based on the first transport block size and a transport block size candidate set, wherein the transport block size candidate set includes elements having an interval of a multiple of 8.
1. A method by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, downlink control information including modulation and coding scheme (MCS) information;
identifying a number of information bits based on the downlink control information; and
identifying a transport block size (TBS) based on the number of information bits and a TBS candidate set,
wherein the TBS candidate set includes values separated by an interval among a plurality of intervals, each of the plurality of intervals being a multiple of 8,
wherein a first interval between first consecutive values included in the TBS candidate set is larger than a second interval between second consecutive values included in the TBS candidate set, and
wherein the first consecutive values are greater than or equal to a predetermined value, and the second consecutive values are less than the predetermined value.
2. The method of claim 1 , wherein the number of information bits is identified based on a modulation order and a coding rate indicated by the MCS information, a number of resource elements (REs) allocated to data transmission, and a number of layers.
3. The method of claim 2 , wherein the number of REs is identified based on a number of resource blocks allocated to the data transmission, a number of allocated symbols, and a number of REs allocated for a demodulation reference signal.
4. A method by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal, downlink control information including modulation and coding scheme (MCS) information;
identifying a number of information bits based on the downlink control information;
identifying a transport block size (TBS) based on the number of information bits and a TBS candidate set; and
transmitting data based on the transport block size,
wherein the TBS candidate set includes values separated by an interval among a plurality of intervals, each of the plurality of intervals being a multiple of 8,
wherein a first interval between first consecutive values included in the TBS candidate set is larger than a second interval between second consecutive values included in the TBS candidate set, and
wherein the first consecutive values are greater than or equal to a predetermined value, and the second consecutive values are less than the predetermined value.
5. The method of claim 4 , wherein the number of information bits is identified based on a modulation order and a coding rate indicated by the MCS information, a number of resource elements (REs) allocated to data transmission, and a number of layers.
6. The method of claim 5 , wherein the number of REs is identified based on a number of resource blocks allocated to the data transmission, a number of allocated symbols, and a number of REs allocated for a demodulation reference signal.
7. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
receive, via the transceiver, from a base station, downlink control information including modulation and coding scheme (MCS) information,
identify a number of information bits based on the downlink control information, and
identify a transport block size (TBS) based on the number of information bits and a TBS candidate set,
wherein the TBS candidate set includes values separated by an interval among a plurality of intervals, each of the plurality of intervals being a multiple of 8,
wherein a first interval between first consecutive values included in the TBS candidate set is larger than a second interval between second consecutive values included in the TBS candidate set, and
wherein the first consecutive values are greater than or equal to a predetermined value, and the second consecutive values are less than the predetermined value.
8. The terminal of claim 7 , wherein the number of information bits is identified based on a modulation order and a coding rate indicated by the MCS information, a number of resource elements (REs) allocated to data transmission, and a number of layers.
9. The terminal of claim 8 , wherein the number of REs is identified based on a number of resource blocks allocated to the data transmission, a number of allocated symbols, and a number of REs allocated for a demodulation reference signal.
10. A base station in a wireless communication system, the base station comprising:
a transceiver; and
a controller coupled with the transceiver and configured to:
transmit, via the transceiver, to a terminal, downlink control information including modulation and coding scheme (MCS) information;
identify a number of information bits based on the downlink control information,
identify a transport block size (TBS) based on the number of information bits and a TBS candidate set, and
transmit data based on the transport block size,
wherein the TBS candidate set includes values separated by an interval among a plurality of intervals, each of the plurality of intervals being a multiple of 8,
wherein a first interval between first consecutive values included in the TBS candidate set is larger than a second interval between second consecutive values included in the TBS candidate set, and
wherein the first consecutive values are greater than or equal to a predetermined value, and the second consecutive values are less than the predetermined value.
11. The base station of claim 10 , wherein the number of information bits is identified based on a modulation order and a coding rate indicated by the MCS information, a number of resource elements (REs) allocated to data transmission, and a number of layers, and
wherein the number of REs is identified based on a number of resource blocks allocated to the data transmission, a number of allocated symbols, and a number of REs allocated for a demodulation reference signal.