Method and apparatus for scheduling and hybrid automatic repeat request feedback in communication system
AssigneeElectronics and Telecommunications Research Institute
InventorsSung Hyun Moon, Cheul Soon Kim, Jung Hoon Lee
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Abstract
An operation method of a terminal in a communication system may comprise: receiving DCI from a base station; identifying a plurality of start and length indicator values (SLIVs) indicated by a time domain resource assignment field included in the DCI; determining a plurality of PDSCH resources based on the plurality of SLIVs; receiving a plurality of PDSCHs from the base station through the plurality of PDSCH resources; and transmitting, to the base station, a plurality of HARQ-ACKs in response to the plurality of PDSCHs.
Claims19
A method of a terminal, the method comprising:
- receiving time domain resource allocation (TDRA) configuration information including a first entry including N1 start and length indicator values (SLIVs) and a second entry including N2 SLIVs from a base station;
- receiving first downlink control information (DCI) including a first field indicating one entry of the first entry or the second entry from the base station;
- identifying a resource of each of one or more PDSCHs based on one or more SLIVs included in the one entry indicated by the first DCI;
- and
- receiving the one or more PDSCHs in the identified resource from the base station, wherein each of the N1 and the N2 is a natural number, when a maximum number of transport blocks (TBs) scheduled by entries included in the TDRA configuration information is L, a number of one or more TBs included in the one or more PDSCHs is N, and the N is less than the L, one or more hybrid automatic repeat request-acknowledgement (HARQ-ACK) bits are mapped to N bits within a HARQ-ACK codebook, and a negative ACK (NACK) is mapped to L-N bits within the HARQ-ACK codebook.
A method of a terminal, the method comprising:
- receiving time domain resource allocation (TDRA) configuration information including a first entry including N1 start and length indicator values (SLIVs) and a second entry including N2 SLIVs from a base station;
- receiving first downlink control information (DCI) including a first field indicating one entry of the first entry or the second entry from the base station;
- identifying a resource of each of one or more physical downlink shared channel (PDSCHs) based on one or more SLIVs included in the one entry indicated by the first DCI;
- and
- receiving the one or more PDSCHs in the identified resource from the base station,
- wherein the N1 is 1, the N2 is a natural number greater than 1, and the first entry or the second entry is selectively indicated by the first DCI so that single PDSCH scheduling by the N1SLIVs and multiple PDSCH scheduling by the N2 SLIVs are dynamically switched.
A method of a base station, the method comprising:
- transmitting time domain resource allocation (TDRA) configuration information including a first entry including N1 start and length indicator values (SLIVs) and a second entry including N2 SLIVs to a terminal;
- transmitting first downlink control information (DCI) including a first field indicating one entry of the first entry or the second entry to the terminal;
- identifying a resource of each of one or more PDSCHs based on one or more SLIVs included in the one entry indicated by the first DCI;
- and
- transmitting the one or more PDSCHs in the identified resource to the terminal,
- wherein, when a maximum number of transport blocks (TBs) scheduled by entries included in the TDRA configuration information is L, a number of one or more TBs included in the one or more PDSCHs is N, and the N is less than the L, one or more hybrid automatic repeat request-acknowledgement (HARQ-ACK) bits are mapped to N bits within a HARQ-ACK codebook, and a negative ACK (NACK) is mapped to L-N bits within the HARQ-ACK codebook.
Dependencies are inferred from the claim text.