Method for monitoring, transmitting, and receiving downlink pre-emption indication information in new radio networks and apparatus thereof
Provided are a method for monitoring, transmitting, and receiving downlink pre-emption indication information in a next-generation/5G radio access network. The method may include receiving monitoring configuration information for downlink pre-emption indication information from a base station; receiving configuration information on a control resource set (CORESET) for receiving the downlink pre-emption indication information from the base station; configuring reference downlink resources based on the configuration information on a control resource set; and monitoring the downlink pre-emption indication information for the reference downlink resources.
1. A method for receiving downlink pre-emption indication information by a user equipment, the method comprising:
receiving monitoring configuration information for downlink pre-emption indication information from a base station;
receiving configuration information on a control resource set (CORESET) for receiving the downlink pre-emption indication information from the base station;
configuring reference downlink resources for the downlink pre-emption indication information based on the configuration information on the CORESET; and
monitoring the downlink pre-emption indication information for the reference downlink resources,
wherein the downlink pre-emption indication information comprises a bitmap indicating information on at least one of time-section resources and frequency-section resources in which pre-emption has occurred, among the reference downlink resources,
wherein respective bits of the bitmap are mapped to different resources to distinguish between the different resources and to indicate one of M different time-section resources and indicates one of N different frequency-section resources where M is an integer number equal to or greater than 1, and N is an integer number equal to or greater than 1,
wherein the configuration information on the control resource set (CORESET) includes a monitoring period K for the CORESET where K is an integer number equal to or greater than 1, and
wherein a time section of the reference downlink resources comprises 14K symbols just before a first symbol constituting the CORESET.
2. The method of claim 1 , wherein the monitoring configuration information is indicated through higher-layer signalling.
3. The method of claim 1 , wherein the downlink pre-emption indication information is indicated through group-common downlink control information (DCI).
4. The method of claim 1 , wherein a frequency section of the reference downlink resources comprises physical resource blocks constituting an active bandwidth part.
5. A method for transmitting downlink pre-emption indication information by a base station, the method comprising:
configuring monitoring configuration information for downlink pre-emption indication information;
transmitting, to a user equipment, configuration information on a control resource set (CORESET) for transmitting the downlink pre-emption indication information; and transmitting, to the user equipment, the downlink pre-emption indication information for reference downlink resources,
wherein the downlink pre-emption indication information comprises a bitmap indicating information on at least one of time-section resources and frequency-section resources in which pre-emption has occurred, among the reference downlink resources,
wherein respective bits of the bitmap are mapped to different resources to distinguish between the different resources and to indicate one of M different time-section resources and indicates one of N different frequency-section resources where M is an integer number equal to or greater than 1, and N is an integer number equal to or greater than 1,
wherein the configuration information on the control resource set (CORESET) includes a monitoring period K for the CORESET where K is an integer number equal to or greater than 1, and
wherein a time section of the reference downlink resources comprises 14K symbols just before a first symbol constituting the CORESET.
6. The method of claim 5 , wherein the monitoring configuration information is transmitted to the user equipment through radio resource control (RRC) signalling.
7. The method of claim 5 , wherein the downlink pre-emption indication information is transmitted to the user equipment through group-common downlink control information (DCI).
8. The method of claim 5 , wherein a frequency section of the reference downlink resources comprises physical resource blocks constituting an active bandwidth part.
9. A user equipment for receiving downlink pre-emption indication information, the user equipment comprising:
a receiver configured to receive monitoring configuration information for downlink pre-emption indication information from a base station, and configured to receive configuration information on a control resource set (CORESET) for receiving the downlink pre-emption indication information from the base station; and
a controller configured to configure reference downlink resources for the downlink pre-emption indication information based on the configuration information on the CORESET, and configured to monitor the downlink pre-emption indication information for the reference downlink resources,
wherein the downlink pre-emption indication information comprises a bitmap indicating information on at least one of time-section resources and frequency-section resources in which pre-emption has occurred, among the reference downlink resources,
wherein respective bits of the bitmap are mapped to different resources to distinguish between the different resources and to indicate one of M different time-section resources and indicates one of N different frequency-section resources where M is an integer number equal to or greater than 1, and N is an integer number equal to or greater than 1,
wherein the configuration information on the control resource set (CORESET) includes a monitoring period K for the CORESET where K is an integer number equal to or greater than 1, and
wherein a time section of the reference downlink resources comprises 14K symbols just before a first symbol constituting the CORESET.
10. The user equipment of claim 9 , wherein the monitoring configuration information is indicated through higher-layer signalling.
11. The user equipment of claim 9 , wherein the downlink pre-emption indication information is indicated through group-common downlink control information (DCI).
12. The user equipment of claim 9 , wherein a frequency section of the reference downlink resources comprises physical resource blocks constituting an active bandwidth part.