Method for transmitting and receiving shared channel in wireless communication system, and device supporting same
View Patent ↗In a method for transmitting and receiving a shared channel in a wireless communication system, the method performed by a terminal is characterized by comprising: a step for receiving, from a base station, first resource information for transmitting and receiving a shared channel; and a step for receiving, from the base station, the shared channel on a first resource determined on the basis of the first resource information or transmitting, to the base station, the shared channel on the first resource.
1. A method for transmitting or receiving a shared channel by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, first resource information on a control channel,
wherein the first resource information includes information related to a symbol length and a relative start symbol index for a downlink shared channel or a symbol length and a relative start symbol index for an uplink shared channel; and
receiving, from the base station, the downlink shared channel or transmitting, to the base station, the uplink shared channel,
wherein one of a first resource for the downlink shared channel and a second resource for the uplink shared channel is determined based on the first resource information,
wherein the first resource is determined based on a first subcarrier spacing (SCS) for the control channel and a second SCS for the downlink shared channel,
wherein the second resource is determined based on the first SCS and a third SCS for the uplink shared channel,
i) when receiving, from the base station, the downlink shared channel:
a start symbol index of the first resource is determined based on the relative start symbol index for the downlink shared channel and a reference symbol index,
the reference symbol index is determined based on a resource allocated for a monitoring of the control channel,
ii) when transmitting, to the base station, the uplink shared channel:
the uplink shared channel is repeatedly transmitted to the base station.
2. The method of claim 1 ,
wherein the control channel is included in a first cell,
wherein the downlink shared channel is included in a second cell,
wherein the uplink shared channel is included in a third cell.
3. The method of claim 1 ,
i) when receiving, from the base station, the downlink shared channel:
wherein the reference symbol index is an index of an earliest symbol among symbols for the monitoring of the control channel.
4. The method of claim 3 ,
wherein, the first SCS and the second SCS are the same.
5. The method of claim 1 ,
wherein the first resource information further includes information related to a first position of a downlink shared channel demodulation-reference signal (DM-RS) or an uplink shared channel DM-RS.
6. The method of claim 5 ,
wherein one or more symbols to which the downlink shared channel DM-RS is mapped include an earliest symbol of the first resource,
wherein one or more symbols to which the uplink shared channel DM-RS is mapped include an earliest symbol of the second resource.
7. The method of claim 5 ,
ii) when transmitting, to the base station, the uplink shared channel:
wherein, if the uplink shared channel is transmitted firstly on the second resource and is repeatedly transmitted secondly on a third resource,
wherein the uplink shared channel DM-RS is mapped to the first position in the second resource, and
wherein the uplink shared channel DM-RS is mapped to an earliest symbol in the third resource.
8. The method of claim 5 ,
ii) when transmitting, to the base station, the uplink shared channel:
wherein, if the uplink shared channel is transmitted firstly on the second resource and is repeatedly transmitted secondly on a third resource,
wherein the uplink shared channel DM-RS is mapped to the first position in the second resource, and
wherein the uplink shared channel DM-RS is mapped to a second position in the third resource, and
wherein the second position is a position separated by a first duration from an earliest symbol of the third resource,
wherein the first duration is a duration in which the first position is separated from an earliest symbol of the first resource.
9. A terminal for transmitting or receiving a shared channel in a wireless communication system, the terminal comprising:
a transceiver;
a processor; and
a memory connected to the processor and configured to store instructions for operations executed by the processor, wherein the operations comprise:
receiving, from a base station, first resource information on a control channel,
wherein the first resource information includes information related to a symbol length and a relative start symbol index for a downlink shared channel or a symbol length and a relative start symbol index for an uplink shared channel; and
receiving, from the base station, the downlink shared channel or transmitting, to the base station, the uplink shared channel,
wherein one of a first resource for the downlink shared channel and a second resource for the uplink shared channel is determined based on the first resource information,
wherein the first resource is determined based on a first subcarrier spacing (SCS) for the control channel and a second SCS for the downlink shared channel,
wherein the second resource is determined based on the first SCS and a third SCS for the uplink shared channel,
i) when receiving, from the base station, the downlink shared channel:
a start symbol index of the first resource is determined based on the relative start symbol index for the downlink shared channel and a reference symbol index,
the reference symbol index is determined based on a resource allocated for a monitoring of the control channel,
ii) when transmitting, to the base station, the uplink shared channel:
the uplink shared channel is repeatedly transmitted to the base station.
10. The terminal of claim 9 ,
wherein the control channel is included in a first cell,
wherein the downlink shared channel is included in a second cell,
wherein the uplink shared channel is included in a third cell.
11. The terminal of claim 9 ,
i) when receiving, from the base station, the downlink shared channel:
wherein the reference symbol index is an index of an earliest symbol among symbols for the monitoring of the control channel.
12. The terminal of claim 10 ,
wherein, the first SCS and the second SCS are the same.
13. The terminal of claim 9 ,
wherein the first resource information further includes information related to a first position of a downlink shared channel demodulation-reference signal (DM-RS) or an uplink shared channel DM-RS.
14. The terminal of claim 13 ,
wherein one or more symbols to which the downlink shared channel DM-RS is mapped include an earliest symbol of the first resource,
wherein one or more symbols to which the uplink shared channel DM-RS is mapped include an earliest symbol of the second resource.
15. The terminal of claim 13 ,
ii) when transmitting, to the base station, the uplink shared channel:
wherein, if the uplink shared channel is transmitted firstly on the second resource and is repeatedly transmitted secondly on a third resource,
wherein the uplink shared channel DM-RS is mapped to the first position in the second resource, and
wherein the uplink shared channel DM-RS is mapped to an earliest symbol in the third resource.
16. The terminal of claim 13 ,
ii) when transmitting, to the base station, the uplink shared channel:
wherein, if the uplink shared channel is transmitted firstly on the second resource and is repeatedly transmitted secondly on a third resource,
wherein the uplink shared channel DM-RS is mapped to the first position in the second resource, and
wherein the uplink shared channel DM-RS is mapped to a second position in the third resource, and
wherein the second position is a position separated by a first duration from an earliest symbol of the third resource,
wherein the first duration is a duration in which the first position is separated from an earliest symbol of the first resource.
17. A method for transmitting or receiving a shared channel by a base station in a wireless communication system, the method comprising:
transmitting, to a terminal, first resource information on a control channel,
wherein the first resource information includes information related to a symbol length and a relative start symbol index for a downlink shared channel or a symbol length and a relative start symbol index for an uplink shared channel; and
transmitting, to the terminal, the downlink shared channel or receiving, to the terminal, the uplink shared channel,
wherein one of a first resource for the downlink shared channel and a second resource for the uplink shared channel is determined based on the first resource information,
wherein the first resource is determined based on a first subcarrier spacing (SCS) for the control channel and a second SCS for the downlink shared channel,
wherein the second resource is determined based on the first SCS and a third SCS for the uplink shared channel,
i) when transmitting, to the terminal, the downlink shared channel:
a start symbol index of the first resource is determined based on the relative start symbol index for the downlink shared channel and a reference symbol index,
the reference symbol index is determined based on a resource allocated for a monitoring of the control channel,
ii) when receiving, from to the terminal, the uplink shared channel:
the uplink shared channel is repeatedly received from the terminal.
18. The method of claim 17 ,
wherein the control channel is included in a first cell,
wherein the downlink shared channel is included in a second cell,
wherein the uplink shared channel is included in a third cell.
19. The method of claim 17 ,
i) when receiving, from the base station, the downlink shared channel:
wherein the reference symbol index is an index of an earliest symbol among symbols for the monitoring of the control channel.
20. The method of claim 19 ,
wherein, the first SCS and the second SCS are the same.