Method of transmitting configuration information, method of detecting control channel resources, and devices therefor
The present disclosure relates to a pre-5 th -Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4 th -Generation (4G) communication system such as Long Term Evolution (LTE). The present invention relates to a method of transmitting configuration information, a method of detecting control channel resources, and devices therefor. The transmission method comprises: configuring, for each coreset, control channel resources on a time unit of a scheduling unit (SU); transmitting configuration for the resources of control channel on the time unit of the SU, wherein control channel resources belong to the coreset containing a plurality of continuous or discontinuous frequency-domain physical resource blocks available to transmit a downlink control channel. The detection method comprises: receiving configuration for the resources of control channel on a time unit of an SU; performing blind detection of a downlink control channel for a user on the time unit of the SU according to the configuration information. The present invention can flexibly configure control channel resources and reduce blind detection of a control channel by a terminal, thereby attaining reduction of power consumption caused by blind detection of the control channel by the terminal and load equalization.
1. A method for transmitting configuration information for control channel resources by a base station, the method comprising:
configuring, for each coreset, control channel resources on a time unit of a scheduling unit (SU); and
transmitting configuration information for the control channel resources on the time unit of the SU, wherein the control channel resources belong to the coreset containing a plurality of continuous or discontinuous frequency-domain physical resource blocks available to transmit a downlink control channel;
wherein configuring the control channel resources comprises:
configuring control channel resources on a time unit of a current SU in a dynamic way, wherein transmitting the configuration information comprises transmitting, on the time unit of the current SU, configuration information for the control channel resources, and
wherein the configuration information comprises time-domain and/or frequency-domain configuration information.
2. The method of claim 1 , wherein the time unit is a downlink time slot, a downlink subframe, or a downlink mini time slot.
3. The method of claim 1 , wherein configuring the control channel resources comprises:
configuring control channel resources on time units of SUs during a configuration period in a semi-static way,
wherein transmitting the configuration information comprises transmitting configuration information for the control channel resources on the time units of the SUs during the configuration period through system information, and
wherein the configuration period contains time units of one or more SUs.
4. The method of claim 1 , wherein configuring the control channel resources comprises:
for the coreset, configuring one part of configuration parameters for control channel resources on time units of SUs during a configuration period in a semi-static way, and configuring the other part of the configuration parameters for control channel resources on a time unit of a current SU in a dynamic way,
wherein transmitting the configuration information comprises transmitting configuration information carrying the one part of the configuration parameters for the control channel resources on the time units of the SUs during the configuration period through system information, and transmitting, on the time unit of the current SU, configuration information carrying the other part of the configuration parameters for the control channel resources on the time unit of the SU, and
wherein the configuration period contains time units of one or more SUs.
5. The method of claim 4 , wherein:
the part of the configuration parameters configured in the semi-static way are cell-specific frequency-domain resource configuration parameters, and the other part of the configuration parameters configured in the dynamic way are cell-specific time-domain resource configuration parameters; or
the one part of the configuration parameters configured in the semi-static way are cell-specific time-domain resource configuration parameters, and the other part of the configuration parameters configured in the dynamic way are cell-specific frequency-domain resource configuration parameters; or
the one part of the configuration parameters configured in the semi-static way are configuration parameters for a resource of a control channel carrying common control signaling, and the other part of the configuration parameters configured in the dynamic way are configuration parameters for a resource of a control channel carrying user-specific control signaling.
6. The method of claim 1 , wherein a physical channel on the time unit of the current SU carries a control channel format index, the control channel format index indicating configuration for the control channel resources on the time unit of the current SU.
7. The method of claim 3 , wherein the system information carries a control channel format index indicating configuration for the control channel resources on the time units of several SUs during the configuration period.
8. The method of claim 3 , wherein the system information comprises the master information block and/or the system information block.
9. The method of claim 1 , further comprising:
transmitting, via collision resolution message MSG4, a user-specific signaling indicating a resource of a control channel carrying the user-specific control signaling.
10. A base station for transmitting configuration information for control channel resources, comprising:
a transmitter; and a processor configured to:
configure, for each coreset, control channel resources on a time unit of a scheduling unit (SU); and
control the transmitter to transmit configuration information for the control channel resources on the time unit of the SU, wherein the control channel resources belong to the coreset containing a plurality of continuous or discontinuous frequency-domain physical resource blocks available to transmit a downlink control channel;
wherein the processor is further configured to:
configure control channel resources on a time unit of a current SU in a dynamic way; and
control the transmitter to transmit, on the time unit of the current SU, configuration information for the control channel resources, wherein the configuration information comprises time-domain and/or frequency-domain configuration information.
11. The base station of claim 10 , wherein the processor is further configured to:
configure control channel resources on time units of SUs during a configuration period in a semi-static way; and
control the transmitter to transmit configuration information for the control channel resources on the time units of the SUs during the configuration period through system information,
wherein the configuration period contains time units of one or more SUs.
12. The base station of claim 10 , wherein the processor is further configured to:
for the coreset, configure one part of configuration parameters for control channel resources on time units of SUs during a configuration period in a semi-static way, and configure the other part of the configuration parameters for control channel resources on a time unit of a current SU in a dynamic way; and
control the transmitter to transmit configuration information carrying the one part of the configuration parameters for the control channel resources on the time units of the SUs during the configuration period through system information, and control the transmitter to transmit, on the time unit of the current SU, configuration information carrying the other part of the configuration parameters for the control channel resources on the time unit of the SU,
wherein the configuration period contains time units of one or more SUs.
13. The base station of claim 12 , wherein:
the part of the configuration parameters configured in the semi-static way are cell-specific frequency-domain resource configuration parameters, and the other part of the configuration parameters configured in the dynamic way are cell-specific time-domain resource configuration parameters; or
the one part of the configuration parameters configured in the semi-static way are cell-specific time-domain resource configuration parameters, and the other part of the configuration parameters configured in the dynamic way are cell-specific frequency-domain resource configuration parameters; or
the one part of the configuration parameters configured in the semi-static way are configuration parameters for a resource of a control channel carrying common control signaling, and the other part of the configuration parameters configured in the dynamic way are configuration parameters for a resource of a control channel carrying user-specific control signaling.
14. A terminal for detecting control channel resources, comprising:
a receiver; and
a processor configured to:
receive, via the receiver, configuration information for control channel resources on a time unit of a scheduling unit (SU); and
perform blind detection of a downlink control channel for a user on the time unit of the SU according to the configuration information,
wherein the control channel resources belong to a coreset containing a plurality of continuous or discontinuous frequency-domain physical resource blocks available to transmit a downlink control channel;
wherein the processor is further configured to:
configure control channel resources on a time unit of a current SU in a dynamic way; and
control the receiver to receive, on the time unit of the current SU, configuration information for the control channel resources, wherein the configuration information comprises time-domain and/or frequency-domain configuration information.
15. The terminal of claim 14 , wherein the processor is further configured to:
configure control channel resources on time units of SUs during a configuration period in a semi-static way; and
control the receiver to receive configuration information for the control channel resources on the time units of the SUs during the configuration period through system information,
wherein the configuration period contains time units of one or more SUs.
16. The terminal of claim 15 , wherein the processor is further configured to:
for the coreset, configure one part of configuration parameters for control channel resources on time units of SUs during a configuration period in a semi-static way, and configure the other part of the configuration parameters for control channel resources on a time unit of a current SU in a dynamic way; and
control the receiver to receive configuration information carrying the one part of the configuration parameters for the control channel resources on the time units of the SUs during the configuration period through system information, and control the receiver to receive, on the time unit of the current SU, configuration information carrying the other part of the configuration parameters for the control channel resources on the time unit of the SU,
wherein the configuration period contains time units of one or more SUs.
17. The terminal of claim 16 , wherein:
the part of the configuration parameters configured in the semi-static way are cell-specific frequency-domain resource configuration parameters, and the other part of the configuration parameters configured in the dynamic way are cell-specific time-domain resource configuration parameters; or
the one part of the configuration parameters configured in the semi-static way are cell-specific time-domain resource configuration parameters, and the other part of the configuration parameters configured in the dynamic way are cell-specific frequency-domain resource configuration parameters; or
the one part of the configuration parameters configured in the semi-static way are configuration parameters for a resource of a control channel carrying common control signaling, and the other part of the configuration parameters configured in the dynamic way are configuration parameters for a resource of a control channel carrying user-specific control signaling.