Dynamic configuration of uplink (UL) and downlink (DL) frame resources for a time division duplex (TDD) transmission

1. At least one non-transitory machine readable storage medium having instructions embodied thereon for performing adaptive time division duplexing (TDD) hybrid automatic repeat request (HARQ)-ACKnowledgement (ACK) reporting from a user equipment (UE), the instructions when executed by one or more processors at the UE perform the following:

implementing, at the UE, an adaptive uplink-downlink (UL-DL) configuration received from an eNodeB;

processing, at the UE, a downlink (DL) HARQ reference configuration received from the eNodeB for a serving cell, wherein the DL HARQ reference configuration is for the implemented adaptive UL-DL configuration; and

formatting, at the UE, HARQ-ACK feedback for transmission on a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) of the serving cell in accordance with the DL HARQ reference configuration.

2. The at least one non-transitory machine readable storage medium of claim 1 , further comprising instructions when executed perform the following: performing uplink scheduling and HARQ feedback based on a reference UL-DL configuration received from the eNodeB via a system information block (SIB).

3. The at least one non-transitory machine readable storage medium of claim 1 , wherein the DL HARQ reference configuration is received at the UE from the eNodeB via higher layer signaling.

4. The at least one non-transitory machine readable storage medium of claim 1 , wherein the DL HARQ reference configuration is received at the UE via dedicated signaling from the eNodeB.

5. The at least one non-transitory machine readable storage medium of claim 1 , wherein the UE is configured to support adaptive UL-DL configurations based on traffic conditions.

6. An apparatus of a user equipment (UE) operable to perform hybrid automatic repeat request (HARQ)-ACKnowledgment (ACK) operations, the apparatus comprising:

memory; and

one or more processors configured to:

activate, at the UE, an adaptive uplink-downlink (UL-DL) configuration;

identify, at the UE, a downlink (DL) HARQ reference configuration for a serving cell, wherein the DL HARQ reference configuration corresponds to the adaptive UL-DL configuration; and

encode, at the UE, adaptive time division duplexing (TDD) HARQ-ACK feedback for the serving cell for transmission to a network node in accordance with the DL HARQ reference configuration.

7. The apparatus of claim 6 , further comprising a transceiver configured to transmit the adaptive TDD HARQ-ACK feedback for the serving cell to the network node.

8. The apparatus of claim 6 , wherein the one or more processors are further configured to process the DL HARQ reference configuration received from the network node.

9. The apparatus of claim 6 , wherein the one or more processors are further configured to perform uplink scheduling and HARQ feedback based on a reference UL-DL configuration received from the network node via a system information block (SIB).

10. The apparatus of claim 6 , wherein the DL HARQ reference configuration is received from the network node via higher layer signaling.

11. The apparatus of claim 6 , wherein the UE is configured to support adaptive UL-DL configurations based on traffic conditions.

12. The apparatus of claim 6 , wherein the UE includes an antenna, a touch sensitive display screen, a speaker, a microphone, a graphics processor, an application processor, an internal memory, or a non-volatile memory port.

13. At least one non-transitory machine readable storage medium having instructions embodied thereon for configuring hybrid automatic repeat request (HARQ) reference configurations for a user equipment (UE), the instructions when executed by one or more processors at an eNodeB perform the following:

configuring, by the eNodeB, an adaptive uplink-downlink (UL-DL) configuration at the UE;

configuring, by the eNodeB, a downlink (DL) HARQ reference configuration for a serving cell at the UE, wherein the DL HARQ reference configuration corresponds to the adaptive UL-DL configuration; and

processing, at the eNodeB, HARQ-ACKnowledgement (ACK) feedback received from the UE in accordance with the DL HARQ reference configuration.

14. The at least one non-transitory machine readable storage medium of claim 13 , wherein time division duplexing (TDD) HARQ-ACK feedback is received from the UE in accordance with the DL HARQ reference configuration.

15. The at least one non-transitory machine readable storage medium of claim 13 , wherein the DL HARQ reference configuration is transmitted to the UE via dedicated signaling.

16. An apparatus of a network node operable to configure hybrid automatic repeat request (HARQ)-ACKnowledgment (ACK) operations for a user equipment (UE), the apparatus comprising:

memory; and

one or more processors configured to:

identify, at the network node, a downlink (DL) HARQ reference configuration for a serving cell, wherein the DL HARQ reference configuration corresponds to an adaptive UL-DL configuration implemented at the UE; and

process, at the network node, the DL HARQ reference configuration for transmission to the UE, wherein the UE is configured to perform HARQ-ACKnowledgement (ACK) operations via a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) of the serving cell based on the DL HARQ reference configuration.

17. The apparatus of claim 16 , wherein the HARQ-ACK operations performed at the UE are time division duplexing (TDD) HARQ-ACK operations.

18. The apparatus of claim 16 , wherein the DL HARQ reference configuration is transmitted to the UE via higher layer signaling.

19. The apparatus of claim 16 , wherein the UE is configured to implement adaptive UL-DL configurations based on traffic conditions.

20. The apparatus of claim 16 , wherein the network node includes a base station (BS), a Node B (NB), an evolved Node B (eNB), a baseband unit (BBU), a remote radio head (RRH), a remote radio equipment (RRE), a remote radio unit (RRU), or a central processing module (CPM).