Systems and methods for feedback reporting

• US 9,246,663 B2
• Filed: 03/15/2013
• Issued: 01/26/2016
• Est. Priority Date: 03/15/2013
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yin, Zhanping, Yamada, Shohei
• Primary Examiner(s): SMARTH, GERALD A
• Application Number:
  US13/843,303
• Publication Number:
  US 20140269539A1
• Time in Patent Office: 1,047 Days
• Field of Search: 370/329
• US Class Current: 1/1
• 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) 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 wherein each of the multiple serving cells is configured with a first uplink/downlink (UL/DL) configuration. The UE also determines a downlink (DL)-reference UL/DL configuration for a 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. In a case that the serving cell is a secondary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined 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 at least a UL/DL configuration included in the additional information for the serving cell.

Claims

1. A user equipment (UE), comprising:

a processor; and

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 wherein each of the multiple serving cells is configured with a first uplink/downlink (UL/DL) configuration;

determine a downlink (DL)-reference UL/DL configuration for a 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, wherein in a case that the serving cell is a secondary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined 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 at least a UL/DL configuration included in the additional information for the serving cell.

2. The UE of claim 1, wherein the primary cell UL/DL configuration is the first UL/DL configuration of the primary cell in a case that the primary cell is not configured with additional information enabling dynamic UL/DL reconfiguration.

3. The UE of claim 1, wherein the primary cell UL/DL configuration is determined based on at least additional information for the primary cell in a case that the primary cell is configured with the additional information enabling dynamic UL/DL reconfiguration.

4. The UE of claim 1, wherein in a case that the serving cell is a primary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on at least the additional information for the serving cell and the additional information includes a UL/DL configuration.

5. The UE of claim 1, wherein in a case that the serving cell is a primary cell and not configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on the first UL/DL configuration for the serving cell.

6. An evolved Node B (eNB), comprising:

a processor; and

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 wherein each of the multiple serving cells is configured with a first uplink/downlink (UL/DL) configuration;

determine a downlink (DL)-reference UL/DL configuration for a 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, wherein in a case that the serving cell is a secondary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined 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 at least a UL/DL configuration included in the additional information for the serving cell.

7. The eNB of claim 6, wherein the primary cell UL/DL configuration is the first UL/DL configuration of the primary cell in a case that the primary cell is not configured with additional information enabling dynamic UL/DL reconfiguration.

8. The eNB of claim 6, wherein the primary cell UL/DL configuration is determined based on at least additional information for the primary cell in a case that the primary cell is configured with the additional information enabling dynamic UL/DL reconfiguration.

9. The eNB of claim 6, wherein in a case that the serving cell is a primary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on at least the additional information for the serving cell and the additional information includes a UL/DL configuration.

10. The eNB of claim 6, wherein in a case that the serving cell is a primary cell and not configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on the first UL/DL configuration for the serving cell.

11. A method performed by a user equipment (UE), comprising:

receiving signaling to configure the UE with multiple serving cells wherein each of the multiple serving cells is configured with a first uplink/downlink (UL/DL) configuration;

determining a downlink (DL)-reference UL/DL configuration for a 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, wherein in a case that the serving cell is a secondary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined 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 at least a UL/DL configuration included in the additional information for the serving cell.

12. The method of claim 11, wherein the primary cell UL/DL configuration is the first UL/DL configuration of the primary cell in a case that the primary cell is not configured with additional information enabling dynamic UL/DL reconfiguration.

13. The method of claim 11, wherein the primary cell UL/DL configuration is determined based on at least additional information for the primary cell in a case that the primary cell is configured with the additional information enabling dynamic UL/DL reconfiguration.

14. The method of claim 11, wherein in a case that the serving cell is a primary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on at least the additional information for the serving cell and the additional information includes a UL/DL configuration.

15. The method of claim 11, wherein in a case that the serving cell is a primary cell and not configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on the first UL/DL configuration for the serving cell.

16. A method performed by an evolved Node B (eNB), comprising:

sending signaling to configure a user equipment (UE) with multiple serving cells wherein each of the multiple serving cells is configured with a first uplink/downlink (UL/DL) configuration;

determining a downlink (DL)-reference UL/DL configuration for a 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, wherein in a case that the serving cell is a secondary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined 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 at least a UL/DL configuration included in the additional information for the serving cell.

17. The method of claim 16, wherein the primary cell UL/DL configuration is the first UL/DL configuration of the primary cell in a case that the primary cell is not configured with additional information enabling dynamic UL/DL reconfiguration.

18. The method of claim 16, wherein the primary cell UL/DL configuration is determined based on at least additional information for the primary cell in a case that the primary cell is configured with the additional information enabling dynamic UL/DL reconfiguration.

19. The method of claim 16, wherein in a case that the serving cell is a primary cell and is configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on at least the additional information for the serving cell and the additional information includes a UL/DL configuration.

20. The method of claim 16, wherein in a case that the serving cell is a primary cell and not configured with additional information enabling dynamic UL/DL reconfiguration, then the DL-reference UL/DL configuration is determined based on the first UL/DL configuration for the serving cell.