Hybrid automatic repeat request processes for sub-band full duplex
A UE may identify slots to transmit and/or receive information related to one or more HARQ processes in frame structure that includes both sub-band full duplex slot types and time division duplex slot types. Based on a first slot used for control information, a UE can identify a second slot for PUSCH or PDSCH communication based on an offset between the first slot and the second determined by calculating slot offsets (e.g., based on parameters received from a base station). In some aspects, a UE may exclude certain slot duplex types (e.g., SBFD or TDD) when calculating slot offsets. In some aspects, a UE may calculate slot offsets differently for different HARQ processes corresponding to one frame. In some aspects, slot offset behaviors may be based on priority of information associated with a HARQ process.
1. A method of wireless communication operable by user equipment (a UE), comprising:
receiving, via a transceiver, in a first slot associated with a first hybrid automatic repeat request (HARQ) process, a first downlink slot offset parameter, the first HARQ process corresponding to a frame structure that includes one or more subband full duplex (SB-FD) slots and one or more time division duplex (TDD) slots;
receiving, via the transceiver, a first physical downlink shared channel (PDSCH) transmission in a second slot associated with the first HARQ process that is offset from the first slot associated with the first HARQ process by one or more slots corresponding to the first downlink slot offset parameter; and
transmitting, via the transceiver, in a third slot associated with the first HARQ process that is offset from the second slot associated with the first HARQ process by one or more slots corresponding to a first HARQ timing parameter, first HARQ-Acknowledgement (HARQ-ACK) information indicating whether the UE successfully decoded the first PDSCH.
2. The method of claim 1 , further comprising:
receiving, via the transceiver, the first HARQ timing parameter in the first slot associated with the first HARQ process;
receiving, via the transceiver, in a first slot associated with a second HARQ process, a second downlink slot offset parameter and a second HARQ timing parameter for a second HARQ process corresponding to the frame structure;
receiving, via the transceiver, a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by one or more slots corresponding to the second downlink slot offset parameter;
transmitting, via the transceiver, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second PDSCH; and
receiving, via the transceiver, a partition indicator indicating a first offset behavior for the first HARQ process and a second offset behavior for the second HARQ process that is different from the first behavior;
wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process, in accordance with the first offset behavior; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process, in accordance with the first offset behavior.
3. The method of claim 2 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter excludes any TDD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
the one or more slots corresponding to the second HARQ timing parameter excludes any TDD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
4. The method of claim 2 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter includes any TDD slots and any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process; and
the one or more slots corresponding to the second HARQ timing parameter includes any TDD and any SB-FD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process.
5. The method of claim 1 , further comprising:
selecting an offset behavior from one of the following offset behaviors based on contents of a message associated with at least the first HARQ process:
a first offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process;
or
a second offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
6. The method of claim 5 , the method further comprising:
receiving, via the transceiver, in a first slot associated with a second HARQ process corresponding to the frame structure, a second downlink slot offset parameter and a second hybrid automatic repeat request (HARQ) timing parameter for the second HARQ process;
receiving, via the transceiver, a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding the second downlink slot offset parameter; and
transmitting, via the transceiver, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second physical downlink shared channel;
wherein the message indicates a first priority associated with the first HARQ process; and
that the message also indicates a second priority associated with the second HARQ process that is different from the first priority; and
wherein selecting the offset behavior further comprises:
selecting the first offset behavior for the first HARQ process based on the first priority; and
selecting the second offset behavior for the second HARQ process based on the second priority;
wherein the one or more slots corresponding to the second downlink slot offset, includes any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
wherein the one or more slots corresponding to the second HARQ timing parameter includes any SB-FD slots between the second slot associated with second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
7. The method of claim 1 , wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any TDD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process and any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any TDD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process and SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
8. A wireless communication device operable as user equipment (a UE), comprising:
a processor;
memory coupled to the processor; and
a transceiver coupled to the processor;
wherein the processor is configured to cause the UE to:
receive, via the transceiver, in a first slot associated with a first hybrid automatic repeat request (HARQ) process, a first downlink slot offset parameter, the first HARQ process corresponding to a frame structure that includes one or more subband full duplex (SB-FD) slots and one or more time division duplex (TDD) slots;
receive, via the transceiver, a first physical downlink shared channel (PDSCH) transmission in a second slot associated with the first HARQ process that is offset from the first slot associated with the first HARQ process by a one or more slots corresponding to the first downlink slot offset parameter; and
transmit, via the transceiver, in a third slot associated with the first HARQ process that is offset from the second slot associated with the first HARQ process by a one or more slots corresponding to a first HARQ timing parameter, first HARK-Acknowledgement (HARQ-ACK) information indicating whether the UE successfully decoded the first PDSCH.
9. The wireless communication device of claim 8 , wherein the processor and the memory are further configured to cause the UE to:
receive, via the transceiver, first HARQ timing parameter in the first slot associated with the first HARQ process;
receive, via the transceiver, in a first slot associated with a second HARQ process, a second downlink slot offset parameter and a second HARQ timing parameter for a second HARQ process corresponding to the frame structure;
receive, via the transceiver, a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding to the second downlink slot offset parameter;
transmit, via the transceiver, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second PDSCH; and
receive, via the transceiver a partition indicator indicating a first offset behavior for the first HARQ process and a second offset behavior for the second HARQ process that is different from the first behavior;
wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process, in accordance with the first offset behavior; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process, in accordance with the first offset behavior.
10. The wireless communication device of claim 9 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter excludes any TDD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
the one or more slots corresponding to the second HARQ timing parameter excludes any TDD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
11. The wireless communication device of claim 9 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter includes any TDD slots and any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process; and
the one or more slots corresponding to the second HARQ timing parameter includes any TDD and any SB-FD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process.
12. The wireless communication device of claim 8 , wherein the processor and the memory are further configured to cause the UE to:
select an offset behavior from one of the following offset behaviors based on contents of a message associated with at least the first HARQ process:
a first offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process;
or
a second offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
13. The wireless communication device of claim 12 , wherein the processor and the memory are further configured to cause the UE:
receive, via the transceiver, in a first slot associated with a second HARQ process corresponding to the frame structure, a second downlink slot offset parameter and a second hybrid automatic repeat request (HARQ) timing parameter for the second HARQ process;
receive, via the transceiver, a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding the second downlink slot offset parameter;
transmit, via the transceiver, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second physical downlink shared channel;
wherein the message indicates a first priority associated with the first HARQ process; and
that the message also indicates a second priority associated with the second HARQ process that is different from the first priority; and
wherein selecting the offset behavior further comprises:
selecting the first offset behavior for the first HARQ process based on the first priority; and
selecting the second offset behavior for the second HARQ process based on the second priority;
wherein the one or more slots corresponding to the second downlink slot offset, includes any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
wherein the one or more slots corresponding to the second HARQ timing parameter includes any SB-FD slots between the second slot associated with second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
14. The wireless communication device of claim 8 , wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any TDD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process and any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any TDD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process and SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
15. A wireless communication device operable as user equipment (a UE), comprising:
means for receiving, in a first slot associated with a first hybrid automatic repeat request (HARQ) process, a first downlink slot offset parameter, the first HARQ process corresponding to a frame structure that includes one or more subband full duplex (SB-FD) slots and one or more time division duplex (TDD) slots;
means for receiving a first physical downlink shared channel (PDSCH) transmission in a second slot associated with the first HARQ process that is offset from the first slot associated with the first HARQ process by a one or more slots corresponding to the first downlink slot offset parameter; and
means for transmitting, in a third slot associated with the first HARQ process that is offset from the second slot associated with the first HARQ process by a one or more slots corresponding to a first HARQ timing parameter, first HARQ-Acknowledgement (HARQ-ACK) information indicating whether the UE successfully decoded the first PDSCH.
16. The wireless communication device of claim 15 , further comprising:
means for receiving the first HARQ timing parameter in the first slot associated with the first HARQ process;
means for receiving, in a first slot associated with a second HARQ process, a second downlink slot offset parameter and a second HARQ timing parameter for a second HARQ process corresponding to the frame structure;
means for receiving a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding to the second downlink slot offset parameter;
means for transmitting, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second PDSCH; and
means for receiving a partition indicator indicating a first offset behavior for the first HARQ process and a second offset behavior for the second HARQ process that is different from the first behavior;
wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process, in accordance with the first offset behavior; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process, in accordance with the first offset behavior.
17. The wireless communication device of claim 16 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter excludes any TDD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
the one or more slots corresponding to the second HARQ timing parameter excludes any TDD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
18. The wireless communication device of claim 16 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter includes any TDD slots and any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process; and
the one or more slots corresponding to the second HARQ timing parameter includes any TDD and any SB-FD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process.
19. The wireless communication device of claim 15 , further comprising:
means for selecting an offset behavior from one of the following offset behaviors based on contents of a message associated with at least the first HARQ process:
a first offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process;
or
a second offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
20. The wireless communication device of claim 19 , further comprising:
means for receiving, in a first slot associated with a second HARQ process corresponding to the frame structure, a second downlink slot offset parameter and a second hybrid automatic repeat request (HARQ) timing parameter for the second HARQ process;
means for receiving a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding the second downlink slot offset parameter; and
means for transmitting, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second physical downlink shared channel;
wherein the message indicates a first priority associated with the first HARQ process; and
that the message also indicates a second priority associated with the second HARQ process that is different from the first priority; and
wherein selecting the offset behavior further comprises:
selecting the first offset behavior for the first HARQ process based on the first priority; and
selecting the second offset behavior for the second HARQ process based on the second priority;
wherein the one or more slots corresponding to the second downlink slot offset, includes any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
wherein the one or more slots corresponding to the second HARQ timing parameter includes any SB-FD slots between the second slot associated with second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
21. The wireless communication device of claim 15 , wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any TDD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process and any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any TDD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process and SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
22. A non-transitory computer-readable medium storing computer-executable code, operable by user equipment (a UE), comprising code for causing the UE to:
receive, via a transceiver, in a first slot associated with a first hybrid automatic repeat request (HARQ) process, a first downlink slot offset parameter, the first HARQ process corresponding to a frame structure that includes one or more subband full duplex (SB-FD) slots and one or more time division duplex (TDD) slots;
receive, via the transceiver, a first physical downlink shared channel (PDSCH) transmission in a second slot associated with the first HARQ process that is offset from the first slot associated with the first HARQ process by a one or more slots corresponding to the first downlink slot offset parameter; and
transmit, via the transceiver, in a third slot associated with the first HARQ process that is offset from the second slot associated with the first HARQ process by a one or more slots corresponding to a first HARQ timing parameter, first HARQ-Acknowledgement (HARQ-ACK) information indicating whether the UE successfully decoded the first PDSCH.
23. The non-transitory computer-readable medium of claim 22 , further comprising code for causing the UE to:
receive, via the transceiver, the first HARQ timing parameter in the first slot associated with the first HARQ process;
receive, via the transceiver, in a first slot associated with a second HARQ process, a second downlink slot offset parameter and a second HARQ timing parameter for a second HARQ process corresponding to the frame structure;
receive, via the transceiver, a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding to the second downlink slot offset parameter;
transmit, via the transceiver, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second PDSCH; and
receive, via the transceiver, a partition indicator indicating a first offset behavior for the first HARQ process and a second offset behavior for the second HARQ process that is different from the first behavior;
wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process, in accordance with the first offset behavior; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process, in accordance with the first offset behavior.
24. The non-transitory computer-readable medium of claim 23 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter excludes any TDD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
the one or more slots corresponding to the second HARQ timing parameter excludes any TDD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
25. The non-transitory computer-readable medium of claim 23 , wherein:
the one or more slots corresponding to the second downlink slot offset parameter includes any TDD slots and any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process; and
the one or more slots corresponding to the second HARQ timing parameter includes any TDD and any SB-FD slots between the second slot associated with the second HARQ process and the third slot associated with the second HARQ process.
26. The wireless communication device of claim 22 , further comprising code for causing the UE to:
select an offset behavior from one of the following offset behaviors based on contents of a message associated with at least the first HARQ process:
a first offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter excludes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter excludes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process;
or
a second offset behavior for the first HARQ process, wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.
27. The non-transitory computer-readable medium of claim 26 , further comprising code for causing the UE to:
receive, via the transceiver, in a first slot associated with a second HARQ process corresponding to the frame structure, a second downlink slot offset parameter and a second hybrid automatic repeat request (HARQ) timing parameter for the second HARQ process;
receive, via the transceiver, a second physical downlink shared channel in a second slot associated with the second HARQ process that is offset from the first slot associated with the second HARQ process by a one or more slots corresponding the second downlink slot offset parameter; and
transmit, via the transceiver, in a third slot associated with the second HARQ process that is offset from the second slot associated with the second HARQ process by a one or more slots corresponding to the second HARQ timing parameter, a second acknowledgement corresponding to information received on the second physical downlink shared channel;
wherein the message indicates a first priority associated with the first HARQ process; and
that the message also indicates a second priority associated with the second HARQ process that is different from the first priority; and
wherein selecting the offset behavior further comprises:
selecting the first offset behavior for the first HARQ process based on the first priority; and
selecting the second offset behavior for the second HARQ process based on the second priority;
wherein the one or more slots corresponding to the second downlink slot offset, includes any SB-FD slots between the first slot associated with the second HARQ process and the second slot associated with the second HARQ process, in accordance with the second offset behavior; and
wherein the one or more slots corresponding to the second HARQ timing parameter includes any SB-FD slots between the second slot associated with second HARQ process and the third slot associated with the second HARQ process, in accordance with the second offset behavior.
28. The non-transitory computer-readable medium of claim 22 , wherein:
the one or more slots corresponding to the first downlink slot offset parameter includes any TDD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process and any SB-FD slots between the first slot associated with the first HARQ process and the second slot associated with the first HARQ process; and
the one or more slots corresponding to the first HARQ timing parameter includes any TDD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process and SB-FD slots between the second slot associated with the first HARQ process and the third slot associated with the first HARQ process.