Control channel and data channel transmission/reception method and apparatus for NR system
Provided is a scheduling information transmission/reception method and apparatus for an NR system in a wireless communication system. A method for receiving, by a terminal, scheduling information for data transmission or reception in a wireless communication system according to one aspect of the present invention may comprise the steps of: receiving, from a base station, information indicating a first physical resource supporting a first subcarrier spacing within a time interval and a second physical resource supporting a second subcarrier spacing within the time interval; receiving at least one of first scheduling information for the first physical resource and second scheduling information for the second physical resource; and performing the data transmission or reception on the basis of the at least one of the first scheduling information and the second scheduling information.
1. A wireless device comprising:
a transceiver, wherein the transceiver:
receives one or more radio resource control (RRC) signals indicating a number of first bandwidth parts and a number of second bandwidth parts configured for the wireless device;
receives a first downlink control information (DCI) comprising a first indicator field that indicates at least one of the first bandwidth parts, wherein a bitwidth of the first indicator field is based on the number of the first bandwidth parts configured for the wireless device, and a second DCI comprising a second indicator field that indicates at least one of the second bandwidth parts, wherein a second bitwidth of the second indicator field is based on the number of the second bandwidth parts configured for the wireless device; and
one or more processors configured to:
determine, based on the bitwidth and based on the DCI, a value within the first indicator field;
determine, based on the value within the first indicator field, one or more first resources of the at least one of the first bandwidth parts;
determine, based on the second bitwidth and based on the second DCI, a value of the second indicator field;
determine, based on the value of the second indicator field, one or more second resources of the at least one of the second bandwidth parts; and
the wireless device performs a first data communication based on the one or more first resources and a second data communication based on the one or more second resources.
2. The wireless device of claim 1 ,
wherein the first bandwidth parts correspond to a plurality of uplink bandwidth parts, and the second bandwidth parts correspond to a plurality of downlink bandwidth parts; or
wherein the first bandwidth parts correspond to a plurality of downlink bandwidth parts, and the second bandwidth parts correspond to a plurality of uplink bandwidth parts.
3. The wireless device of claim 1 , wherein the number of the first bandwidth parts configured for the wireless device is semi-statically configured, and
wherein the number of the first bandwidth parts configured for the wireless device indicates the bitwidth of the first indicator field as one of 0, 1, or 2.
4. The wireless device of claim 1 , wherein the one or more RRC signals indicate the wireless device to monitor a physical resource region corresponding to a particular transmission time interval (TTI).
5. The wireless device of claim 1 , wherein the first DCI comprises an assignment field indicating start and end points of a data assignment,
wherein the assignment field is associated with a combination of slot information and symbol information of the at least one of the first bandwidth parts, and
wherein the data assignment is associated with a physical uplink shared channel or a physical downlink shared channel.
6. The wireless device of claim 1 , wherein the transceiver receives DCI indicating a deactivation of the at least one of the first bandwidth parts and indicating an activation of a different bandwidth part of the first bandwidth parts.
7. The wireless device of claim 1 , wherein the transceiver receives an RRC signal indicating a deactivation of the at least one of the first bandwidth parts and indicating an activation of a different bandwidth part of the first bandwidth parts.
8. The wireless device of claim 1 , wherein the transceiver receives configuration information, of the at least one of the first bandwidth parts, comprising subcarrier spacing information, cyclic prefix information, and frequency information.
9. A base station comprising:
a transceiver, wherein the transceiver transmits, to a wireless device, one or more radio resource control (RRC) signals indicating a number of first bandwidth parts and a number of second bandwidth parts configured for the wireless device; and
one or more processors configured to:
determine, based on the number of the first bandwidth parts configured for the wireless device, a bitwidth of a first indicator field of a first downlink control information (DCI);
generate, based on the bitwidth, the first DCI comprising a value, for the first indicator field, that indicates at least one of the first bandwidth parts, wherein the value for the first indicator field is associated with one or more resources of the at least one of the first bandwidth parts;
determine, based on the number of the second bandwidth parts configured for the wireless device, a second bitwidth of a second indicator field of a second DCI; and
generate, based on the second bitwidth, the second DCI comprising a value, of the second indicator field, that indicates at least one of the second bandwidth parts, wherein the value of the second indicator field is associated with one or more second resources of the at least one of the second bandwidth parts,
wherein the transceiver transmits, to the wireless device, the first DCI and the second DCI, and
wherein the base station performs, based on the one or more resources, a first data communication with the wireless device and performs, based on the one or more second resources, a second data communication with the wireless device.
10. The base station of claim 9 ,
wherein the first bandwidth parts correspond to a plurality of uplink bandwidth parts, and the second bandwidth parts correspond to a plurality of downlink bandwidth parts; or
wherein the first bandwidth parts correspond to a plurality of downlink bandwidth parts, and the second bandwidth parts correspond to a plurality of uplink bandwidth part.
11. The base station of claim 9 , wherein the number of the first bandwidth parts configured for the wireless device is semi-statically configured, and
wherein the number of the first bandwidth parts configured for the wireless device indicates the bitwidth of the first indicator field as one of 0, 1, or 2.
12. The base station of claim 9 , wherein the one or more RRC signals indicate the wireless device to monitor a physical resource region corresponding to a particular transmission time interval (TTI).
13. The base station of claim 9 , wherein the first DCI comprises an assignment field indicating start and end points of a data assignment,
wherein the assignment field is associated with a combination of slot information and symbol information of the at least one of the first bandwidth parts, and
wherein the data assignment is associated with a physical uplink shared channel or a physical downlink shared channel.
14. The base station of claim 9 , wherein the transceiver transmits, to the wireless device, DCI indicating a deactivation of the at least one of the first bandwidth parts and indicating an activation of a different bandwidth part of the first bandwidth parts.
15. The base station of claim 9 , wherein the transceiver transmits, to the wireless device, an RRC signal indicating a deactivation of the at least one of the first bandwidth parts and indicating an activation of a different bandwidth part of the first bandwidth parts.
16. The base station of claim 9 , wherein the transceiver transmits, to the wireless device, configuration information, of the at least one of the first bandwidth parts, comprising subcarrier spacing information, cyclic prefix information, and frequency information.