Apparatus and method for determining maximum transport block size in communication system
A method performed by a user equipment (UE) in a wireless communication system is provided. The method includes transmitting, to a base station, capability information of the UE, and receiving configuration information associated with a transport block size (TBS). The TBS is determined based on a value of N RE ·R·Q m ·v. The N RE corresponds to a number of allocated resource elements, the R corresponds to a code rate, and the Q m corresponds to a modulation order, and the v corresponds to a number of allocated layers. A maximum value of the TBS is considered for transport block over multiple slots (TBoMS), and the maximum value of the TBS is determined by limiting at least one of a value of the N RE , the R, the Q m , or the v.
1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
transmitting, to a base station, capability information of the UE; and
receiving configuration information associated with a transport block size (TBS),
wherein the TBS is determined based on a value of N RE ·R·Q m ·v,
wherein the N RE corresponds to a number of allocated resource elements, the R corresponds to a code rate, and the Q m corresponds to a modulation order, and the v corresponds to a number of allocated layers,
wherein a maximum value of the TBS is considered for transport block over multiple slots (TBoMS),
wherein the maximum value of the TBS is determined by limiting at least one of a value of the N RE , the Q m , or the v,
wherein a maximum value of the N RE is determined based on a maximum value of the n PRB , and
wherein the n PRB corresponds to a number of PRBs allocated to a physical downlink shared channel (PDSCH) in a slot.
2. The method of claim 1 , wherein a maximum value of the N RE is determined based on at least one of a frequency or a subcarrier spacing.
3. The method of claim 2 ,
wherein the N RE corresponds to min 156, N RE ′)·n PRB ,
wherein the N RE ′ corresponds to N sc RB ·N symb sh −N DMRS PRB −N oh PRB , and
wherein the N sc RB corresponds to a number of number of subcarriers included in one resource block, N symb sh corresponds to a number of orthogonal frequency division multiplexing (OFDM) symbols allocated to the PDSCH, then N DMRS PRB corresponds to a number of resource elements included in one physical resource block (PRB), and the N oh PRB corresponds to a number of resource elements occupied by overhead in the one PRB.
4. A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a base station, capability information of the UE; and
receive configuration information associated with a transport block size (TBS), and
wherein the TBS is determined based on a value of N RE ·R·Q m ·v,
wherein the N RE corresponds to a number of allocated resource elements, the R corresponds to a code rate, and the Q m corresponds to a modulation order, and the v corresponds to a number of allocated layers,
wherein a maximum value of the TBS is considered for transport block over multiple slots (TBoMS),
wherein the maximum value of the TBS is determined by limiting at least one of a value of the N RE , the Q m , or the v,
wherein a maximum value of the N RE is determined based on a maximum value of the n PRB , and
wherein the n PRB corresponds to a number of PRBs allocated to a physical downlink shared channel (PDSCH) in a slot.
5. The UE of claim 4 , wherein a maximum value of the N RE is determined based on at least one of a frequency or a subcarrier spacing.
6. The UE of claim 5 ,
wherein the N RE corresponds to min (156, N RE ′)·n PRB ,
wherein the N RE ′ corresponds to N sc RB ·N symb sh −N DMRS PRB −N oh PRB , and
wherein the N sc RB corresponds to a number of subcarriers included in one resource block, the N symb sh corresponds to a number of orthogonal frequency division multiplexing (OFDM) symbols allocated the PDSCH, the N DMRS PRB corresponds to a number of resource elements included in one physical resource block (PRB), and the N oh PRB corresponds to a number of resource elements occupied by overhead in the one PRB.
7. A method performed by a base station in a wireless communication system, the method comprising:
receiving, from a user equipment (UE), capability information of the UE; and
transmitting configuration information associated with a transport block size (TBS), and
wherein the TBS is determined based on a value of N RE ·R·Q m ·v,
wherein the N RE corresponds to a number of allocated resource elements, the R corresponds to a code rate, and the Q m corresponds to a modulation order, and the v corresponds to a number of allocated layers,
wherein a maximum value of the TBS is considered for transport block over multiple slots (TBoMS),
wherein the maximum value of the TBS is determined by limiting at least one of a value of the N RE , the Q m , or the v,
wherein a maximum value of the N RE is determined based on a maximum value of the n PRB , and
wherein the n PRB corresponds to a number of PRBs allocated to a physical downlink shared channel (PDSCH) in a slot.
8. The method of claim 7 , wherein a maximum value of the N RE is determined based on at least one of a frequency or a subcarrier spacing.
9. The method of claim 8 ,
wherein the N RE corresponds to min (156, N RE ′)·n PRB ,
wherein the N RE ′ corresponds to N sc RB ·N symb sh −N DMRS PRB −N oh PRB , and
wherein the N sc RB corresponds to a number of subcarriers included in one resource block, the N symb sh corresponds to a number of orthogonal frequency division multiplexing (OFDM) symbols allocated the PDSCH, the N DMRS PRB corresponds to a number of resource elements included in one physical resource block (PRB), and N oh PRB the corresponds to a number of resource elements occupied by overhead in the one PRB.
10. A base station in a wireless communication system, the base station comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
receive, from a user equipment (UE), capability information of the UE; and
transmit configuration information associated with a transport block size (TBS),
wherein the TBS is determined based on a value of N RE ·R·Q m ·v,
wherein the N RE corresponds to a number of allocated resource elements, the R corresponds to a code rate, and the Q m corresponds to a modulation order,
and the v corresponds to a number of allocated layers,
wherein a maximum value of the TBS is considered for transport block over multiple slots (TBoMS),
wherein the maximum value of the TBS is determined by limiting at least one of a value of the N RE , the Q m , or the v,
wherein a maximum value of the N RE is determined based on a maximum value of the n PRB , and
wherein the n PRB corresponds to a number of PRBs allocated to a physical downlink shared channel (PDSCH) in a slot.
11. The base station of claim 10 , wherein a maximum value of the N RE is determined based on at least one of a frequency or a subcarrier spacing.
12. The base station of claim 11 ,
wherein the N RE corresponds to min (156, N RE ′)·n PRB ,
wherein the N RE ′ corresponds to N sc RB ·N symb sh −N DMRS PRB −N oh PRB ,
wherein the N sc RB corresponds to a number of subcarriers included in one resource block, the N symb sh corresponds to a number of orthogonal frequency division multiplexing (OFDM) symbols allocated to the PDSCH, the N DMRS PRB corresponds to a number of resource elements included in one physical resource block (PRB), the N oh PRB corresponds to a number of resource elements occupied by overhead in the one PRB.