Abstract
Aspects of the present disclosure relate to techniques that may help enable the determination of uplink resource allocation in systems that support dynamic uplink-downlink subframe configurations. An example method generally includes receiving signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration determining hybrid automatic repeat request (HARQ) acknowledgment/negative acknowledgment (ACK/NACK) timing based on a reference UL-DL subframe configuration and determining HARQ resource allocation based on the dynamic UL-DL subframe configuration.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
5G | 27/05/2020 | ISLD-202005-065 | QUALCOMM INC | Yes | Basis Patent |
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WO2015024215A1 | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | Yes | Basis Patent | ||||
WO2015024423A1 | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | Yes | Family Member | ||||
CA2918497A1 | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | No | Family Member | ||||
CN105493597A | 5G | 27/05/2020 | ISLD-202005-065 | QUALCOMM INC | No | Family Member | ||||
KR20160045806A | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | No | Family Member | ||||
EP3036957A1 | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | No | Family Member | ||||
EP3036957A4 | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | No | Family Member | ||||
US2016192354A1 | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | No | Family Member | ||||
JP2016530817A | 4G | 17/12/2015 | ISLD-201601-004 | QUALCOMM INC | No | Family Member | ||||
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Technologies
Product
Use Cases
Services
Claim
1. A method for wireless communication by a user equipment (UE), comprising:
receiving signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration; determining hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) timing based on the dynamic UL-DL subframe configuration and a resource offset; determining HARQ resource allocation based on the dynamic UL-DL subframe configuration; and transmitting a HARQ ACK/NACK based on the determined HARQ resource allocation and HARQ ACK/NACK timing.
2. The method of claim 1, wherein determining HARQ ACK/NACK timing based on the dynamic UL-DL subframe configuration and the resource offset comprises determining a subframe in which to transmit the HARQ ACK/NACK based on a number of consecutive UL subframes in the dynamic UL-DL configuration.
3. The method of claim 1, wherein determining HARQ resource allocation based on the dynamic UL-DL subframe configuration comprises determining a HARQ-ACK codebook size based on the dynamic UL-DL subframe configuration.
4. The method of claim 3, wherein at least one of the codebook size or a number of ACK/NACK bits is determined based on a size of a DL association set of the dynamic UL-DL subframe configuration.
5. The method of claim 1, wherein determining HARQ resource allocation based on the dynamic UL-DL subframe configuration comprises determining physical uplink control channel (PUCCH) resource allocation based on the dynamic UL-DL subframe configuration.
6. The method of claim 5, wherein the physical uplink control channel (PUCCH) resource allocation is determined based on a size of a DL association set of the dynamic UL-DL subframe configuration.
7. The method of claim 6, wherein flexible subframes in a bundling set not configured as DL in the dynamic UL-DL configuration are not counted when determining the size of the DL association set.
8. The method of claim 7, further comprising determining a packing order of remaining DL subframes in the bundling set by removing UL subframes.
9. The method of claim 8, wherein fixed DL subframes are mapped first in the packing order of the remaining DL subframes.
10. The method of claim 5, wherein separate PUCCH regions are configured for UEs capable of supporting dynamic UL-DL subframe configuration and UEs not capable of supporting dynamic UL-DL subframe configuration.
11. The method of claim 10, further comprising determining whether a potential collision exists between the PUCCH region for UEs capable of dynamic UL-DL subframe configuration and the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration.
12. The method of claim 11, further comprising:
using the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration if no potential collision is detected.
13. The method of claim 11, wherein the resource offset comprises:
a first offset value if no potential collision is detected; and a second offset value if a potential collision is detected.
14. The method of claim 5, wherein the signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration comprises dynamic signaling.
15. The method of claim 14, wherein the dynamic signaling is conveyed via at least one of:
one or more bits in a downlink control information (DCI) format used for transmit power control (TPC) commands, or one or more acknowledgement resource offset (ARO) bits.
16. The method of claim 1, further comprising:
detecting a missed dynamic UL-DL subframe configuration; and in response to the detection, determining HARQ resource allocation based on an UL-DL subframe configuration signaled in a system information block (SIB).
17. An apparatus for wireless communications, comprising:
means for receiving signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration; means for determining hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) timing based on the dynamic UL-DL subframe configuration and a resource offset; means for determining HARQ resource allocation based on the dynamic UL-DL subframe configuration; and means for transmitting a HARQ ACK/NACK based on the determined HARQ resource allocation and HARQ ACK/NACK timing.
18. The apparatus of claim 17, wherein determining HARQ ACK/NACK timing based on the dynamic UL-DL subframe configuration and the resource offset comprises determining a subframe in which to transmit the HARQ ACK/NACK based on a number of consecutive UL subframes in the dynamic UL-DL configuration.
19. The apparatus of claim 17, wherein determining HARQ resource allocation based on the dynamic UL-DL subframe configuration comprises determining a HARQ-ACK codebook size based on the dynamic UL-DL subframe configuration.
20. The apparatus of claim 17, wherein determining HARQ resource allocation based on the dynamic UL-DL subframe configuration comprises determining physical uplink control channel (PUCCH) resource allocation based on the dynamic UL-DL subframe configuration.
21. The apparatus of claim 20, wherein the physical uplink control channel (PUCCH) resource allocation is determined based on a size of a DL association set of the dynamic UL-DL subframe configuration, wherein flexible subframes in a bundling set not configured as DL in the dynamic UL-DL configuration are not counted when determining the size of the DL association set, and wherein the apparatus further comprises means for determining a packing order of remaining DL subframes in the bundling set by removing UL subframes.
22. The apparatus of claim 20, wherein separate PUCCH regions are configured for UEs capable of supporting dynamic UL-DL subframe configuration and UEs not capable of supporting dynamic UL-DL subframe configuration, and wherein the apparatus further comprises means for determining whether a potential collision exists between the PUCCH region for UEs capable of dynamic UL-DL subframe configuration and the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration.
23. The apparatus of claim 22, wherein the resource offset comprises:
a first value if no potential collision is detected; and a second offset value if a potential collision is detected.
24. The apparatus of claim 20, wherein the signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration comprises dynamic signaling, and wherein the dynamic signaling is conveyed via at least one of:
one or more bits in a downlink control information (DCI) format used for transmit power control (TPC) commands, or one or more acknowledgment resource offset (ARO) bits.
25. The apparatus of claim 17, further comprising:
means for detecting a missed dynamic UL-DL subframe configuration; and means for determining, in response to the detection, HARQ resource allocation based on an UL-DL subframe configuration signaled in a system information block (SIB).
26. An apparatus for wireless communications, comprising:
means for receiving signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration; means for determining hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) timing based on a reference UL-DL subframe configuration; means for determining HARQ resource allocation based on the dynamic UL-DL subframe configuration, wherein determining HARQ resource allocation based on the dynamic UL-DL subframe configuration comprises determining physical uplink control channel (PUCCH) resource allocation based on the dynamic UL-DL subframe configuration, and wherein separate PUCCH regions are configured for UEs capable of supporting dynamic UL-DL subframe configuration and UEs not capable of supporting dynamic UL-DL subframe configuration; means for determining whether a potential collision exists between the HARQ resource allocation and the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration; means for using the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration for communications between the UE and a base station if no potential collision is determined; and means for transmitting HARQ ACK/NACK based on the HARQ ACK/NACK timing and HARQ resource allocation.
27. An apparatus for wireless communications, comprising:
means for transmitting, to a user equipment (UE), signaling indicating a dynamic uplink-downlink (UL-DL) subframe configuration; means for determining hybrid automatic repeat request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) timing for the UE based on a reference UL-DL subframe configuration; means for determining HARQ resource allocation for the UE based on the dynamic UL-DL subframe configuration, wherein determining HARQ resource allocation based on the dynamic UL-DL subframe configuration comprises determining physical uplink control channel (PUCCH) resource allocation based on the dynamic UL-DL subframe configuration, wherein separate PUCCH regions are configured for UEs capable of supporting dynamic UL-DL subframe configuration and UEs not capable of supporting dynamic UL-DL subframe configuration; means for determining whether a potential collision exists between the determined HARQ resource allocation and the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration, wherein the PUCCH region for UEs not capable of supporting dynamic UL-DL subframe configuration is used for communications between the BS and both UEs not capable of supporting dynamic UL-DL subframe configuration and UEs capable of supporting dynamic UL-DL subframe configuration if no potential collision is determined; and means for receiving HARQ ACK/NACK from the UE based on the determined HARQ resource allocation and HARQ ACK/NACK timing.
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.