Method and device for transmitting data
The present application provides a method for transmitting data, which includes the following. A UE detects a physical downlink control channel, PDCCH, on a configured control resource set; the UE analyzes the detected PDCCH, and determines a method for dividing code blocks, CBs, and a method for rate matching of a physical downlink shared channel, PDSCH, and receives the PDSCH accordingly. By the method of the present application, when a service with a low delay requirement punches the time-frequency resources of other services, a performance of the other services is improved as much as possible, and the resource utilization rate is improved as much as possible.
1. A method for transmitting and receiving data, by a terminal, comprising:
identifying configured one or more control resource sets (CORESETs);
receiving a higher layer signaling configuring one or more sets of resources including at least one CORESET of the configured one or more CORESETs;
identifying at least one set of resources dynamically indicated as not available for a physical downlink shared channel (PDSCH) among the configured one or more sets of resources;
receiving the PDSCH using resources other than the identified at least one set of resources;
generating hybrid automatic repeat request acknowledge (HARQ-ACK) information according to the received PDSCH; and
transmitting the HARQ-ACK information.
2. The method of claim 1 , wherein the PDSCH includes code block groups (CBGs) of a transport block.
3. The method of claim 2 ,
wherein the generating of the HARQ-ACK information comprises, in response to a maximum number of the CBGs being configured by a higher layer parameter, generating respective HARQ-ACK information bits for the maximum number of the CBGs, and
wherein the respective HARQ-ACK information bits indicate acknowledgement (ACK) or negative acknowledgement (NACK).
4. The method of claim 2 , wherein the generating of the HARQ-ACK information comprises, in response to receiving the PDSCH, generating the HARQ-ACK information for the transport block according to a downlink control information (DCI) format of a physical downlink control channel (PDCCH).
5. The method of claim 2 , further comprising:
in response to a maximum number of the CBGs being M, grouping C code blocks to M CBGs,
wherein, if C>M and C is not divided by M, a number of CBs within each of M 1 CBGs is K 1 , and
wherein a number of CBs within each of M2 CBGs is K2, M 1 =mod(C,M),
M
2
=
M
-
M
1
,
K
1
=
⌈
C
M
⌉
,
and
K
2
=
⌊
C
M
⌋
.
6. A non-transitory computer-readable recording medium on which a program for executing the method of claim 1 is recorded.
7. A method for transmitting and receiving data, by a base station, comprising:
determining one or more sets of resources including at least one control resource set (CORESET) of one or more CORESETs configured to a terminal;
transmitting, to the terminal, a higher layer signaling configuring the one or more sets of resources;
transmitting, to the terminal, the PDSCH using resources other than at least one set of resources, dynamically indicated as not available for a physical downlink shared channel (PDSCH) among the configured one or more sets of resources; and
receiving, from the terminal, HARQ-ACK information generated according to the PDSCH.
8. A terminal for transmitting and receiving data, the terminal comprising:
a transceiver;
at least one memory storing instructions; and
at least one processor configured to execute the stored instructions to:
identify configured one or more control resources sets (CORESETs),
receive a higher layer signaling configuring one or more sets of resources including at least one CORESET of the configured one or more CORESETs,
identify at least one set of resources dynamically indicated as not available for a physical downlink shared channel (PDSCH) among the configured one or more sets of resources,
control the transceiver to receive the PDSCH using resources other than the identified at least one set of resources,
generate HARQ-ACK information according to the received PDSCH, and
control the transceiver to transmit the HARQ-ACK information.
9. The terminal of claim 8 , wherein the PDSCH includes code block groups (CBGs) of a transport block.
10. The terminal of claim 9 ,
wherein the at least one processor is further configured to execute the stored instructions to, in response to a maximum number of the CBGs being configured by a higher layer parameter, generate respective HARQ-ACK information bits for the maximum number of the CBGs, and
wherein the HARQ-ACK information bits indicate acknowledgement (ACK) or negative acknowledgement (NACK).
11. The terminal of claim 9 , wherein the at least one processor configured to execute the stored instructions to, in response to receiving the PDSCH, generate the HARQ-ACK information for the transport block according to a downlink control information (DCI) format of a physical downlink control channel (PDCCH).
12. The terminal of claim 9 ,
wherein the at least one processor is further configured to execute the stored instructions to, in response to a maximum number of the CBGs being M, group C code blocks to M CBGs,
wherein, if C>M and C is not divided by M, a number of CBs within each of M 1 CBGs is K 1 , and
wherein a number of CBs within each of M2 CBGs is K2, M 1 =mod(C,M),
M
2
=
M
-
M
1
,
K
1
=
⌈
C
M
⌉
,
and
K
2
=
⌊
C
M
⌋
.
13. A base station for transmitting and receiving data, 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 one or more sets of resources including at least one control resource set (CORESET) of one or more CORESETs configured to a terminal,
control the transceiver to:
transmit, to the terminal, a higher layer signaling configuring the one or more sets of resources,
transmit, to the terminal, the PDSCH using resources other than at least one set of resources, dynamically indicated as not available for a physical downlink shared channel (PDSCH) among the configured one or more sets of resources, and
receive, from the terminal, HARQ-ACK information generated according to the PDSCH.