User equipments, base stations and methods for RNTI-based PDSCH downlink slot aggregation
View Patent ↗A user equipment (UE) is described. The UE comprises a higher layer processor configured to acquire a dedicated radio resource control (RRC) configuration for a downlink slot aggregation, physical downlink control channel (PDCCH) receiving circuitry configured to monitor a PDCCH carrying a downlink control information (DCI) format for scheduling a physical downlink shared channel (PDSCH), and PDSCH receiving circuitry configured to receive the PDSCH. When the PDCCH is with a first radio network temporary identifier (RNTI), the downlink slot aggregation applies to the PDSCH. When the PDCCH is with a second RNTI, the downlink slot aggregation does not apply to the PDSCH.
1. A user equipment comprising:
a processor configured to acquire a dedicated radio resource control (RRC) configuration for a downlink slot aggregation and configured to monitor a physical downlink control channel (PDCCH) carrying a downlink control information (DCI) format which schedules a physical downlink shared channel (PDSCH); and
receiving circuitry configured to receive the PDSCH; wherein:
whether the PDSCH is (a) a PDSCH to which the downlink slot aggregation is applied or (b) a PDSCH to which the downlink slot aggregation is not applied is determined based on whether the PDCCH is (i) a PDCCH with Cyclic Redundancy Check (CRC) scrambled by a first type of radio network temporary identifier (RNTI) or (ii) a PDCCH with CRC scrambled by a second type of RNTI different from the first type of RNTI.
2. The user equipment of claim 1 , wherein the first type of RNTI is a Cell-RNTI (C-RNTI), and the second type of RNTI is one of a System Information-RNTI (SI-RNTI) and a Paging-RNTI (P-RNTI).
3. The user equipment of claim 1 , wherein the PDCCH with CRC scrambled by the first type of RNTI is monitored in a user-equipment search space (USS).
4. The user equipment of claim 1 , wherein the first type of RNTI at least includes a Cell-RNTI (C-RNTI).
5. A method for a user equipment, the method comprising:
acquiring, through a processor, a dedicated radio resource control (RRC) configuration for a downlink slot aggregation;
monitoring, through the processor, a physical downlink control channel (PDCCH) carrying a downlink control information (DCI) format which schedules a physical downlink shared channel (PDSCH); and
receiving, through receiving circuitry, the PDSCH; wherein:
whether the PDSCH is (a) a PDSCH to which the downlink slot aggregation is applied or (b) a PDSCH to which the downlink slot aggregation is not applied is determined based on whether the PDCCH is (i) a PDCCH with Cyclic Redundancy Check (CRC) scrambled by a first type of radio network temporary identifier (RNTI) or (ii) a PDCCH with CRC scrambled by a second type of RNTI different from the first type of RNTI.
6. The method of claim 5 , wherein the first type of RNTI is a Cell-RNTI (C-RNTI), and the second type of RNTI is one of a System Information-RNTI (SI-RNTI) and a Paging-RNTI (P-RNTI).
7. The method of claim 5 , wherein the PDCCH with CRC scrambled by the first type of RNTI is monitored in a user-equipment search space (USS).
8. The method of claim 5 , wherein the first type of RNTI at least includes a Cell-RNTI (C-RNTI).
9. A base station comprising:
a processor configured to send a dedicated radio resource control (RRC) configuration for a downlink slot aggregation;
transmitting circuitry configured to transmit a physical downlink control channel (PDCCH) carrying a downlink control information (DCI) format which schedules a physical downlink shared channel (PDSCH) and configured to transmit the PDSCH; wherein:
whether the PDSCH is (a) a PDSCH to which the downlink slot aggregation is applied or (b) a PDSCH to which the downlink slot aggregation is not applied is determined based on whether the PDCCH is (i) a PDCCH with Cyclic Redundancy Check (CRC) scrambled by a first type of radio network temporary identifier (RNTI) or (ii) a PDCCH with CRC scrambled by a second type of RNTI different from the first type of RNTI.
10. The base station of claim 9 , wherein the first type of RNTI is a Cell-RNTI (C-RNTI), and the second type of RNTI is one of a System Information-RNTI (SI-RNTI) and a Paging-RNTI (P-RNTI).
11. The base station of claim 9 , wherein the PDCCH with CRC scrambled by the first type of RNTI is transmitted, through the transmitting circuitry, in a user-equipment search space (USS).
12. The base station of claim 9 , wherein the first type of RNTI at least includes a Cell-RNTI (C-RNTI).
13. A method for a base station, the method comprising:
sending, through a processor, a dedicated radio resource control (RRC) configuration for a downlink slot aggregation;
transmitting, through transmitting circuitry, a physical downlink control channel (PDCCH) carrying a downlink control information (DCI) format which schedules a physical downlink shared channel (PDSCH) and transmitting, through the transmitting circuitry, the PDSCH; wherein:
whether the PDSCH is (a) a PDSCH to which the downlink slot aggregation is applied or (b) a PDSCH to which the downlink slot aggregation is not applied is determined based on whether the PDCCH is (i) a PDCCH with Cyclic Redundancy Check (CRC) scrambled by a first type of radio network temporary identifier (RNTI) or (ii) a PDCCH with CRC scrambled by a second type of RNTI different from the first type of RNTI.
14. The method of claim 13 , wherein the first type of RNTI is a Cell-RNTI (C-RNTI), and the second type of RNTI is one of a System Information-RNTI (SI-RNTI) and a Paging-RNTI (P-RNTI).
15. The method of claim 13 , wherein the PDCCH with CRC scrambled by the first type of RNTI is transmitted, through the transmitting circuitry, in a user-equipment search space (USS).
16. The method of claim 13 , wherein the first type of RNTI at least includes a Cell-RNTI (C-RNTI).