METHODS AND RELATED DEVICES FOR PERFORMING CROSS-CARRIER SCHEDULING WITH BEAM OPERATIONS

• US 20190313390A1
• Filed: 04/03/2019
• Published: 10/10/2019
• Est. Priority Date: 04/10/2018
• Status: Active Grant

• Current Assignee: FG Innovation Company Limited
• Original Assignee: FG Innovation Company Limited
• Inventors: CHENG, YU-HSIN
• Granted Patent: US 11,057,891 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/046 the resource being in the space domain, e.g. beams
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/535 based on resource usage policies
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/27 Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 8/24 Transfer of terminal data
• CPC Class Codes: H04W 88/023 with message or information receiving capability

Abstract

A method for wireless communications is provided. The method, performed by a User Equipment (UE), includes receiving, on a first cell, a first search space configuration and a second search space configuration, and a portion of the second search space configuration being different from the first search space configuration; monitoring, on the first cell, a first Physical Downlink Control Channel (PDCCH) of the first cell, based on the first search space configuration; and monitoring, on the first cell, a second PDCCH of a second cell cross-carrier scheduled by the first cell, based on the second search space configuration.

Claims

1. A method for wireless communications performed by a User Equipment (UE), the method comprising:

receiving, on a first cell, a plurality of search space configurations from a base station, wherein the plurality of search space configurations comprises a first search space configuration and a second search space configuration, and a portion of the second search space configuration is different from the first search space configuration;

monitoring, on the first cell, a first Physical Downlink Control Channel (PDCCH) of the first cell, based on the first search space configuration; and

monitoring, on the first cell, a second PDCCH of a second cell cross-carrier scheduled by the first cell, based on the second search space configuration;

wherein the portion of the second search space configuration differing from the first search space configuration comprises at least one of

a number of PDCCH candidates of each Aggregation Level (AL);

a monitoring periodicity; and

a format of Downlink Control Information (DCI).

2. The method of claim 1, wherein the first search space configuration and the second search space configuration are associated with a same Control Resource Set (CORESET) Identifier (ID).

3. The method of claim 1, wherein the first search space configuration and the second search space configuration are associated with different CORESET IDs.

4. The method of claim 1, wherein the first search space configuration and the second search space are associated with a same search space ID.

5. The method of claim 1, further comprising:

receiving, by the UE, a Beam Failure Recovery configuration from a base station via RRC signaling, wherein the BFR configuration comprises a search space identifier (ID) of a search space configuration associated with a CORESET configured on a specific cell other than the second cell.

6. The method of claim 5, wherein the specific cell is the first cell or a self-scheduling cell other than the first cell.

7. The method of claim 5, wherein the search space configuration comprises at least one of

a number of Physical Resource Blocks (PRBs);

a number of symbols; and

a Control Channel Element (CCE) to Resource Element Group (REG) mapping.

8. The method of claim 1, further comprising:

receiving, by the UE, a CORESET configuration from the base station, wherein the CORESET configuration comprises a plurality of Transmission Configuration Indication (TCI) state IDs.

9. The method of claim 1, further comprising:

applying, by the UE, two of the plurality of TCI state IDs to receive the first PDCCH and the second PDCCH simultaneously.

10. A User Equipment (UE) comprising:

one or more non-transitory computer-readable media having computer-executable instructions embodied thereon;

at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to;

receive, on a first cell, a plurality of search space configurations from a base station, wherein the plurality of search space configurations comprises a first search space configuration and a second search space configuration, and a portion of the second search space configuration is different from the first search space configuration;

monitor, on the first cell, a first Physical Downlink Control Channel (PDCCH) of the first cell, based on the first search space configuration; and

monitor, on the first cell, a second PDCCH of a second cell cross-carrier scheduled by the first cell, based on the second search space configuration;

wherein the portion of the second search space configuration differing from the first search space configuration comprises at least one of

a number of PDCCH candidates of each Aggregation Level (AL);

a monitoring periodicity; and

a format of Downlink Control Information (DCI).

11. The UE of claim 10, wherein the first search space configuration and the second search space configuration are associated with a same Control Resource Set (CORESET) Identifier (ID).

12. The UE of claim 10, wherein the first search space configuration and the second search space configuration are associated with different CORESET IDs.

13. The UE of claim 10, wherein the first search space configuration and the second search space are associated with a same search space ID.

14. The UE of claim 10, wherein the at least one processor is further configured to execute the computer-executable instructions to:

receive a Beam Failure Recovery configuration from a base station via RRC signaling, wherein the BFR configuration comprises a search space identifier (ID) of a search space configuration associated with a CORESET configured on a specific cell other than the second cell.

15. The UE of claim 14, wherein the specific cell is the first cell or a self-scheduling cell other than the first cell.

16. The UE of claim 14, wherein the search space configuration comprises at least one of

a number of Physical Resource Blocks (PRBs);

a number of symbols; and

a Control Channel Element (CCE) to Resource Element Group (REG) mapping.

17. The UE of claim 10, wherein the at least one processor is further configured to execute the computer-executable instructions to:

receive a CORESET configuration from the base station, wherein the CORESET configuration comprises a plurality of Transmission Configuration Indication (TCI) state IDs.

18. The UE of claim 17, wherein the at least one processor is further configured to execute the computer-executable instructions to:

apply two of the plurality of TCI state IDs to receive the first PDCCH and the second PDCCH simultaneously.