Data mapping method and apparatus in wireless communication system
A method, performed by a base station, of transmitting and receiving data in a wireless communication system, and an apparatus therefor are provided. The method includes determining whether a code block (CB), one of a plurality of CBs included in a transport block (TB), is scheduled for a transmission based on code block group transmission information (CBGTI), in response to the CB being scheduled for the transmission, determining a length of a sequence for the CB based on a number of CBs of the TB or a number of scheduled CBs of the TB, generating the sequence for the CB according to the determined length of the sequence, and transmitting a signal including the generated sequence.
1. A method, performed by a base station, of transmitting and receiving data in a wireless communication system, the method comprising:
determining whether a code block (CB), one of a plurality of CBs included in a transport block (TB), is scheduled for a transmission based on code block group transmission information (CBGTI);
in response to the CB being scheduled for the transmission, determining a length of a sequence for the CB based on a number of CBs of the TB or a number of scheduled CBs of the TB;
generating the sequence for the CB according to the determined length of the sequence; and
transmitting a signal including the generated sequence.
2. The method of claim 1 , further comprising:
in response to the CB not being scheduled for the transmission, determining the length of a sequence for the CB as 0.
3. The method of claim 1 , further comprising:
in response to the CBGTI not being present in downlink control information (DCI) scheduling of the TB, determining the length of the sequence for the CB based on the number of CBs of the TB; and
in response to the CBGTI being present in the DCI, determining the length of the sequence for the CB based on the number of scheduled CBs of the TB.
4. The method of claim 3 , wherein the length of the sequence for the CB is determined as
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L
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Q
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·
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G
N
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·
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or
N
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·
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N
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·
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,
N L is the number of transmission layers mapped with the TB,
Q m is the modulation order,
G is the total number of coded bits available for a transmission of the TB,
C′ is the number of CBs of the TBs in response to the CBGTI being not present in the DCI, and
C′ is the number of the scheduled CBs of the TBs in response to the CBGTI being present in the DCI.
5. A non-transitory computer-readable recording medium having an executable program recorded thereon, wherein the program instructs a computer to perform the method of claim 1 .
6. A method, performed by a user equipment (UE) of transmitting and receiving data in a wireless communication system, the method comprising:
receiving code block group transmission information (CBGTI) for at least one code block (CB) included in a transport block (TB);
determining a length of a sequence for the at least one CB based on the number of CBs of the TB or the number of scheduled CBs of the TB according to the CBGTI; and
decoding the at least one CB based on the determined length of the sequence.
7. The method of claim 6 , further comprising:
in response to the CBGTI not being present in downlink control information (DCI) scheduling the TB, determining the length of the sequence for the CB based on the number of CBs of the TB; and
in response to the CBGTI being present in the DCI, determining the length of the sequence for the CB based on the number of scheduled CBs of the TB.
8. The method of claim 7 , wherein the length of the sequence for the CB is determined as
N
L
·
Q
m
·
⌊
G
N
L
·
Q
m
·
C
′
⌋
or
N
L
·
Q
m
·
⌈
G
N
L
·
Q
m
·
C
′
⌉
,
N L is the number of transmission layers mapped with the TB,
Q m is the modulation order,
G is the total number of coded bits available for a transmission of the TB,
C′ is the number of CBs of the TBs in response to the CBGTI being not present in the DCI, and
C′ is the number of the scheduled CBs of the TBs in response to the CBGTI being present in the DCI.
9. A base station for transmitting and receiving data in a wireless communication system, the base station comprising:
a transceiver;
at least one memory storing instructions; and
at least one processor configured to execute the stored instructions to:
determine whether a code block (CB), one of a plurality of CBs included in a transport block (TB), is scheduled for a transmission based on code block group transmission information (CBGTI),
in response to the CB being scheduled for the transmission, determine a length of a sequence for the CB based on a number of CBs of the TB or a number of scheduled CBs of the TB,
generate the sequence for the CB according to the determined length of the sequence, and
control the transceiver to transmit a signal including the generated sequence.
10. The base station of claim 9 , wherein the at least one processor is further configured to execute the stored instructions to:
in response to the CB not being scheduled for the transmission, determine the length of a sequence for the CB as 0.
11. The base station of claim 9 , wherein the at least one processor is further configured to execute the stored instructions to:
in response to the CBGTI not being present in downlink control information (DCI) scheduling of the TB, determine the length of a sequence for the CB based on the number of CBs of the TB; and
in response to the CBGTI being present in the DCI, determine the length of the sequence for the CB based on the number of scheduled CBs of the TB.
12. The base station of claim 11 , wherein the length of the sequence for the CB is determined as
N
L
·
Q
m
·
⌊
G
N
L
·
Q
m
·
C
′
⌋
or
N
L
·
Q
m
·
⌈
G
N
L
·
Q
m
·
C
′
⌉
,
N L is the number of transmission layers mapped with the TB,
Q m is the modulation order,
G is the total number of coded bits available for a transmission of the TB,
C′ is the number of CBs of the TBs in response to the CBGTI being not present in the DCI, and
C′ is the number of the scheduled CBs of the TBs in response to the CBGTI being present in the DCI.
13. A user equipment (UE) for transmitting and receiving data in a wireless communication system, the UE comprising:
a transceiver;
at least one memory storing instructions; and
at least one processor configured to execute the stored instructions to:
receive code block group transmission information (CBGTI) for at least one code block (CB) included in a transport block (TB),
determine a length of a sequence for the at least one CB based on a number of CBs of the TB or a number of scheduled CBs of the TB according to the CBGTI, and
decode the at least one CB based on the determined length of the sequence.
14. The UE of claim 13 , wherein the at least one processor is further configured to execute the stored instructions to:
in response to the CBGTI not being present in downlink control information (DCI) scheduling of the TB, determine the length of a sequence for the CB based on the number of CBs of the TB; and
in response to the CBGTI being present in the DCI, determine the length of the sequence for the CB based on the number of scheduled CBs of the TB.
15. The UE of claim 14 , wherein the length of the sequence for the CB is determined as
N
L
·
Q
m
·
⌊
G
N
L
·
Q
m
·
C
′
⌋
or
N
L
·
Q
m
·
⌈
G
N
L
·
Q
m
·
C
′
⌉
,
N L is the number of transmission layers mapped with the TB,
Q m is the modulation order,
G is the total number of coded bits available for a transmission of the TB,
C′ is the number of CBs of the TBs in response to the CBGTI being not present in the DCI, and
C′ is the number of the scheduled CBs of the TBs in response to the CBGTI being present in the DCI.