Scheduling and feedback method and apparatus in mobile communication system
The present disclosure relates to a 5G or pre-5G communication system which will be provided in order to support a higher data transmission rate than a 4G communication system such as LTE. In addition, a method for transmitting and receiving signals in a terminal of a mobile communication system, according to one embodiment of the present specification, comprises the steps of: receiving, from a base station, control information including scheduling information about a plurality of subframes; transmitting data to the base station or receiving data from the base station through resources decided based on the control information; and receiving, from the base station, feedback information about the transmitted data, or transmitting, to the base station, feedback information about the received data. According to one embodiment of the present specification, there is an effect of reducing overhead of a base station, a resource and a channel according to resource allocation by performing, at one time, resource allocation for a plurality of transmission time intervals. In addition, communication efficiency is increased by performing, in one subframe, resource allocation for one or more transmission time intervals, and when feedback thereon is received, performing an operation for each of a plurality of processes.
1. A method by a terminal for transmitting and receiving a signal in a mobile communication system, the method comprising:
receiving, from a base station, control information comprising scheduling information for a plurality of subframes;
transmitting, to the base station, data on a resource determined based on the control information; and
receiving, from the base station, feedback information indicating common feedback corresponding to the plurality of subframes for the data in a subframe and a new data indicator (NDI) in the subframe,
wherein the NDI is generated based on a number of re-transmissions by the base station.
2. The method of claim 1 ,
wherein the plurality of subframes include a plurality of uplink subframes,
wherein the data comprises the plurality of uplink subframes, and
wherein the feedback information corresponds to part or all of the data on at least one downlink subframe.
3. The method of claim 1 , wherein the NDI is toggled based on the common feedback in response to a transmission that has been attempted N times being NACK, and wherein N denotes a preset number of re-transmissions.
4. The method of claim 1 , wherein the common feedback is NACK in a case that at least one of feedbacks corresponding to the plurality of subframes for the data is NACK.
5. A method by a base station for transmitting and receiving a signal in a mobile communication system, the method comprising:
transmitting, to a terminal, control information comprising scheduling information for a plurality of subframes;
receiving, from the terminal, data on a resource determined based on the control information; and
transmitting, to the terminal, feedback information indicating common feedback corresponding to the plurality of subframes for the data in a subframe and a new data indicator (NDI) in the subframe,
wherein the NDI is generated based on a number of re-transmissions.
6. The method of claim 5 ,
wherein the plurality of subframes includes a plurality of uplink subframes,
wherein the data comprises the plurality of uplink subframes, and
wherein the feedback information corresponds to part or all of the data on at least one downlink subframe.
7. The method of claim 5 , wherein the NDI is toggled based on the common feedback in response to a transmission that has been attempted N times being NACK, and wherein N denotes a preset number of re-transmissions.
8. The method of claim 5 , wherein the common feedback is NACK in a case that at least one of feedbacks corresponding to the plurality of subframes for the data is NACK.
9. A terminal in a mobile communication system, the terminal comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
receive, from a base station, control information comprising scheduling information for a plurality of subframes,
transmit, to the base station, data on a resource determined based on the control information, and
receive, from the base station, feedback information indicating common feedback corresponding to the plurality of subframes for the data in a subframe and a new data indicator (NDI) in the subframe,
wherein the NDI is generated based on a number of re-transmissions by the base station.
10. The terminal of claim 9 ,
wherein the plurality of subframes include a plurality of uplink subframes,
wherein the data comprises the plurality of uplink subframes, and
wherein the feedback information corresponds to part or all of the data on at least one downlink subframe.
11. The terminal of claim 9 , wherein the NDI is toggled based on the common feedback in response to a transmission that has been attempted N times being NACK, and wherein N denotes a preset number of re-transmissions.
12. The terminal of claim 9 , wherein the common feedback is NACK in a case that at least one of feedbacks corresponding to the plurality of subframes for the data is NACK.
13. A base station in a mobile communication system, the base station comprising:
a transceiver; and
at least one processor coupled with the transceiver and configured to:
transmit, to a terminal, control information comprising scheduling information for a plurality of subframes,
receive, from the terminal, data on a resource determined based on the control information, and
transmit, to the terminal, feedback information indicating common feedback corresponding to the plurality of subframes for the data in a subframe and a new data indicator (NDI) in the subframe,
wherein the NDI is generated based on a number of re-transmissions.
14. The base station of claim 13 ,
wherein the plurality of subframes include a plurality of uplink subframes,
wherein the data comprises the plurality of uplink subframes, and
wherein the feedback information corresponds to part or all of the data on at least one downlink subframe.
15. The base station of claim 13 , wherein the NDI is toggled based on the common feedback in response to a transmission that has been attempted N times being NACK, and wherein N denotes a preset number of re-transmissions.
16. The base station of claim 13 , wherein the common feedback is NACK in a case that at least one of feedbacks corresponding to the plurality of subframes for the data is NACK.