SYSTEMS AND METHODS FOR FEEDBACK REPORTING

• US 20140269539A1
• Filed: 03/15/2013
• Published: 09/18/2014
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yin, Zhanping, Yamada, Shohei
• Granted Patent: US 9,246,663 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0092 Indication of how the channel is divided
• CPC Class Codes: H04L 5/1469 using time-sharing

Abstract

A User Equipment (UE) for sending feedback is described. The UE includes a processor and instructions stored in memory that is in electronic communication with the processor. The UE receives signaling to configure the UE with multiple serving cells having a first uplink/downlink (UL/DL) configuration for each of the serving cells. If the UE is configured with the multiple serving cells and at least one of the serving cells is configured with additional reconfiguration information that enables dynamic UL/DL reconfiguration, then the UE also determines a downlink (DL)-reference UL/DL configuration for at least one of the serving cells based on the first UL/DL configuration of the at least one serving cell and the additional reconfiguration information of the at least one serving cell. The UE further sends Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the DL-reference UL/DL configuration.

Claims

1. A user equipment (UE) for sending feedback, comprising:

a processor;

memory in electronic communication with the processor, wherein instructions stored in the memory are executable to;

receive signaling to configure the UE with multiple serving cells having a first uplink/downlink (UL/DL) configuration for each of the serving cells, wherein if the UE is configured with the multiple serving cells and at least one of the serving cells is configured with additional reconfiguration information that enables dynamic UL/DL reconfiguration, then;

determine a downlink (DL)-reference UL/DL configuration for at least one of the serving cells based on the first UL/DL configuration of the at least one serving cell and the additional reconfiguration information of the at least one serving cell; and

send Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the DL-reference UL/DL configuration.

2. The UE of claim 1, wherein if the at least one serving cell is a secondary cell, then determining the DL-reference UL/DL configuration for the at least one serving cell comprises determining the DL-reference UL/DL configuration based on a pair formed by a primary cell UL/DL configuration and a secondary cell UL/DL configuration, wherein the secondary cell UL/DL configuration is determined based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

3. The UE of claim 2, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell.

4. The UE of claim 2, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell and additional reconfiguration information of the primary cell.

5. The UE of claim 1, wherein if the at least one serving cell is a primary cell, then determining the DL-reference UL/DL configuration comprises determining the DL-reference UL/DL configuration based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

6. The UE of claim 1, wherein two or more of the multiple serving cells has a different first UL/DL configuration.

7. An evolved Node B (eNB) for receiving feedback, comprising:

a processor;

memory in electronic communication with the processor, wherein instructions stored in the memory are executable to;

send signaling to configure a user equipment (UE) with multiple serving cells having a first uplink/downlink (UL/DL) configuration for each of the serving cells, wherein if at least one of the serving cells is configured with additional reconfiguration information that enables dynamic UL/DL reconfiguration, then;

determine a downlink (DL)-reference UL/DL configuration for at least one of the serving cells based on the first UL/DL configuration of the at least one serving cell and the additional reconfiguration information of the at least one serving cell;

receive Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the DL-reference UL/DL configuration.

8. The eNB of claim 7, wherein if the at least one serving cell is a secondary cell, then determining the DL-reference UL/DL configuration for the at least one serving cell comprises determining the DL-reference UL/DL configuration based on a pair formed by a primary cell UL/DL configuration and a secondary cell UL/DL configuration, wherein the secondary cell UL/DL configuration is determined based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

9. The eNB of claim 8, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell.

10. The eNB of claim 8, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell and additional reconfiguration information of the primary cell.

11. The eNB of claim 7, wherein if the at least one serving cell is a primary cell, then determining the DL-reference UL/DL configuration comprises determining the DL-reference UL/DL configuration based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

12. The eNB of claim 7, wherein two or more of the multiple serving cells has a different first UL/DL configuration.

13. A method for sending feedback by a user equipment (UE), comprising:

receiving signaling to configure the UE with multiple serving cells having a first uplink/downlink (UL/DL) configuration for each of the serving cells, wherein if the UE is configured with the multiple serving cells and at least one of the serving cells is configured with additional reconfiguration information that enables dynamic UL/DL reconfiguration, then;

determining a downlink (DL)-reference UL/DL configuration for at least one of the serving cells based on the first UL/DL configuration of the at least one serving cell and the additional reconfiguration information of the at least one serving cell; and

sending Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the DL-reference UL/DL configuration.

14. The method of claim 13, wherein if the at least one serving cell is a secondary cell, then determining the DL-reference UL/DL configuration for the at least one serving cell comprises determining the DL-reference UL/DL configuration based on a pair formed by a primary cell UL/DL configuration and a secondary cell UL/DL configuration, wherein the secondary cell UL/DL configuration is determined based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

15. The method of claim 14, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell.

16. The method of claim 14, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell and additional reconfiguration information of the primary cell.

17. The method of claim 13, wherein if the at least one serving cell is a primary cell, then determining the DL-reference UL/DL configuration comprises determining the DL-reference UL/DL configuration based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

18. The method of claim 13, wherein two or more of the multiple serving cells has a different first UL/DL configuration.

19. A method for receiving feedback by an evolved Node B (eNB), comprising:

sending signaling to configure a user equipment (UE) with multiple serving cells having a first uplink/downlink (UL/DL) configuration for each of the serving cells, wherein if at least one of the serving cells is configured with additional reconfiguration information that enables dynamic UL/DL reconfiguration, then;

determining a downlink (DL)-reference UL/DL configuration for at least one of the serving cells based on the first UL/DL configuration of the at least one serving cell and the additional reconfiguration information of the at least one serving cell;

receiving Physical Downlink Shared Channel (PDSCH) Hybrid Automatic Repeat Request Acknowledgement/Negative Acknowledgement (HARQ-ACK) information based on the DL-reference UL/DL configuration.

20. The method of claim 19, wherein if the at least one serving cell is a secondary cell, then determining the DL-reference UL/DL configuration for the at least one serving cell comprises determining the DL-reference UL/DL configuration based on a pair formed by a primary cell UL/DL configuration and a secondary cell UL/DL configuration, wherein the secondary cell UL/DL configuration is determined based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

21. The method of claim 20, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell.

22. The method of claim 20, wherein the primary cell UL/DL configuration is determined based on a first UL/DL configuration of the primary cell and additional reconfiguration information of the primary cell.

23. The method of claim 19, wherein if the at least one serving cell is a primary cell, then determining the DL-reference UL/DL configuration comprises determining the DL-reference UL/DL configuration based on a first UL/DL configuration of the at least one serving cell and the additional reconfiguration information.

24. The method of claim 19, wherein two or more of the multiple serving cells has a different first UL/DL configuration.