US-12621833-B2 - Transmission of deferred SPS HARQ feedback coinciding with current PUCCH

Abstract

Method and apparatus to defer transmission of HARQ-ACK feedback that overlaps a DL symbol. The apparatus determines to transmit PUCCH SPS HARQ-ACK feedback in response to a received semi-persistently scheduled PDSCH. The apparatus determines that the transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol. The transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another UL symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol. The apparatus transmits, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback in one of a next set of available UL symbols or concurrently with a PUCCH HARQ-ACK feedback transmission in a next dynamically scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content.

Inventors

• Konstantinos Dimou
• Yan Zhou
• Tao Luo

Assignees

• QUALCOMM INCORPORATED

Dates

Publication Date

20260505

Application Date

20220120

Priority Date

20210129

Claims (19)

1. 1 . An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and at least one processor coupled to the memory and configured to: determine to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determine that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmit, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback concurrently with a PUCCH HARQ-ACK feedback transmission in a next dynamically scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content, wherein if transmission of the deferred SPS PUCCH HARQ-ACK feedback overlaps the next scheduled PUCCH, the at least one process is further configured to: determine that the next scheduled PUCCH includes channel state information (CSI) resources for transmitting CSI; replace the CSI with the deferred SPS PUCCH HARQ-ACK feedback; and transmit the deferred SPS PUCCH HARQ-ACK feedback in the CSI resources concurrently with the PUCCH HARQ-ACK feedback in the scheduled PUCCH.
2. 2 . The apparatus of claim 1 , further comprising a transceiver coupled to the at least one processor.
3. 3 . An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and at least one processor coupled to the memory and configured to: determine to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determine that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmit, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback concurrently with a PUCCH HARQ-ACK feedback transmission in a next scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content, wherein if the transmission of the deferred SPS PUCCH HARQ-ACK feedback overlaps the next scheduled PUCCH, the at least one process is further configured to: determine that the next scheduled PUCCH includes HARQ and channel state information (CSI) resources for transmitting HARQ and CSI; replace the CSI with the deferred SPS PUCCH HARQ-ACK feedback, wherein the CSI is dropped; and transmit PUCCH comprising the deferred SPS PUCCH HARQ-ACK feedback multiplexed with the PUCCH HARQ for the next scheduled PUCCH.
4. 4 . An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and at least one processor coupled to the memory and configured to: determine to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determine that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmit, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback concurrently with a PUCCH HARQ-ACK feedback transmission in a next scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content, wherein if the transmission of the deferred SPS PUCCH HARQ-ACK feedback overlaps the next scheduled PUCCH, the at least one process is further configured to: determine that the next scheduled PUCCH only includes resources for a PUCCH HARQ-ACK feedback for the next scheduled PUCCH; and determine whether the deferred SPS PUCCH HARQ-ACK feedback can be multiplexed with the PUCCH HARQ-ACK feedback for the next scheduled PUCCH.
5. 5 . The apparatus of claim 4 , wherein the at least one process is further configured to: transmit concurrently the multiplexed SPS PUCCH HARQ-ACK feedback and PUCCH HARQ-ACK feedback in the scheduled PUCCH resource when both the SPS PUCCH HARQ-ACK feedback and the PUCCH HARQ-ACK feedback can be multiplexed into the same scheduled PUCCH resource.
6. 6 . The apparatus of claim 4 , wherein the at least one process is further configured to: replace the PUCCH HARQ-ACK feedback for the next scheduled PUCCH with the deferred SPS PUCCH HARQ-ACK feedback when the deferred SPS PUCCH HARQ-ACK feedback cannot be multiplexed with the PUCCH HARQ-ACK feedback for the next scheduled PUCCH; and transmit the deferred SPS PUCCH HARQ-ACK feedback in PUCCH resources for the next scheduled PUCCH, wherein the PUCCH HARQ-ACK feedback for the next scheduled PUCCH is dropped.
7. 7 . The apparatus of claim 4 , wherein the at least one process is further configured to: multiplex the PUCCH HARQ-ACK feedback for the next scheduled PUCCH and the deferred SPS PUCCH HARQ-ACK feedback; determine an amount of PUCCH resources needed to transmit the PUCCH HARQ-ACK feedback for the next scheduled PUCCH multiplexed with the deferred SPS PUCCH HARQ-ACK feedback; and transmit the PUCCH HARQ-ACK feedback for the next scheduled PUCCH multiplexed with the deferred SPS PUCCH HARQ-ACK feedback in a new PUCCH resource, based on a PUCCH resource indicator (PRI), when both the SPS PUCCH HARQ-ACK feedback and the PUCCH HARQ-ACK feedback cannot be multiplexed into the same scheduled PUCCH resource.
8. 8 . The apparatus of claim 7 , wherein the PRI comprises resources for a plurality of different payloads, wherein the PRI supports transmission of the PUCCH HARQ-ACK feedback for the next scheduled PUCCH multiplexed with the deferred SPS PUCCH HARQ-ACK feedback.
9. 9 . An apparatus for wireless communication at a user equipment (UE), comprising: a memory; and at least one processor coupled to the memory and configured to: determine to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determine that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmit, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback in one of a next set of available UL symbols based on a deferred feedback configuration configured to define PUCCH content.
10. 10 . The apparatus of claim 9 , wherein the deferred SPS PUCCH HARQ-ACK feedback is transmitted in at least a first available UL symbol of the next set of available UL symbols with a same PUCCH format of the deferred SPS PUCCH HARQ-ACK feedback having similar physical resource blocks (PRBs) and a similar beam identifier (ID).
11. 11 . A method of wireless communication at a user equipment (UE), comprising: determining to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determining that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmitting, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback concurrently with a PUCCH HARQ-ACK feedback transmission in a next dynamically scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content, wherein if transmission of the deferred SPS PUCCH HARQ-ACK feedback overlaps the next scheduled PUCCH, the deferred feedback configuration is configured to: determine that the next scheduled PUCCH includes channel state information (CSI) resources for transmitting CSI; replace the CSI with the deferred SPS PUCCH HARQ-ACK feedback; and transmit the deferred SPS PUCCH HARQ-ACK feedback in the CSI resources concurrently with the PUCCH HARQ-ACK feedback in the scheduled PUCCH.
12. 12 . A method of wireless communication at a user equipment (UE), comprising: determining to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determining that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmitting, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback concurrently with a PUCCH HARQ-ACK feedback transmission in a next scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content, wherein if the transmission of the deferred SPS PUCCH HARQ-ACK feedback overlaps the next scheduled PUCCH, the deferred feedback configuration is configured to: determine that the next scheduled PUCCH includes HARQ and channel state information (CSI) resources for transmitting HARQ and CSI; replace the CSI with the deferred SPS PUCCH HARQ-ACK feedback, wherein the CSI is dropped; and transmit PUCCH comprising the deferred SPS PUCCH HARQ-ACK feedback multiplexed with the PUCCH HARQ for the next scheduled PUCCH.
13. 13 . A method of wireless communication at a user equipment (UE), comprising: determining to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determining that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmitting, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback concurrently with a PUCCH HARQ-ACK feedback transmission in a next scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content, wherein if the transmission of the deferred SPS PUCCH HARQ-ACK feedback overlaps the next scheduled PUCCH, the deferred feedback configuration is configured to: determine that the next scheduled PUCCH only includes resources for a PUCCH HARQ-ACK feedback for the next scheduled PUCCH; and determine whether the deferred SPS PUCCH HARQ-ACK feedback can be multiplexed with the PUCCH HARQ-ACK feedback for the next scheduled PUCCH.
14. 14 . The method of claim 13 , wherein the deferred feedback configuration is configured to: transmit concurrently the multiplexed SPS PUCCH HARQ-ACK feedback and PUCCH HARQ-ACK feedback in the scheduled PUCCH resource when both the SPS PUCCH HARQ-ACK feedback and the PUCCH HARQ-ACK feedback can be multiplexed into the same scheduled PUCCH resource.
15. 15 . The method of claim 13 , wherein the deferred feedback configuration is configured to: replace the PUCCH HARQ-ACK feedback for the next scheduled PUCCH with the deferred SPS PUCCH HARQ-ACK feedback when the deferred SPS PUCCH HARQ-ACK feedback cannot be multiplexed with the PUCCH HARQ-ACK feedback for the next scheduled PUCCH; and transmit the deferred SPS PUCCH HARQ-ACK feedback in PUCCH resources for the next scheduled PUCCH, wherein the PUCCH HARQ-ACK feedback for the next scheduled PUCCH is dropped.
16. 16 . The method of claim 13 , wherein the deferred feedback configuration is configured to: multiplex the PUCCH HARQ-ACK feedback for the next scheduled PUCCH and the deferred SPS PUCCH HARQ-ACK feedback; determine an amount of PUCCH resources needed to transmit the PUCCH HARQ-ACK feedback for the next scheduled PUCCH multiplexed with the deferred SPS PUCCH HARQ-ACK feedback; and transmit the PUCCH HARQ-ACK feedback for the next scheduled PUCCH multiplexed with the deferred SPS PUCCH HARQ-ACK feedback in a new PUCCH resource, based on a PUCCH resource indicator (PRI), when both the SPS PUCCH HARQ-ACK feedback and the PUCCH HARQ-ACK feedback cannot be multiplexed into the same scheduled PUCCH resource.
17. 17 . The method of claim 16 , wherein the PRI comprises resources for a plurality of different payloads, wherein the PRI supports transmission of the PUCCH HARQ-ACK feedback for the next scheduled PUCCH multiplexed with the deferred SPS PUCCH HARQ-ACK feedback.
18. 18 . A method of wireless communication at a user equipment (UE), comprising: determining to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH); determining that transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol; and transmitting, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback in one of a next set of available UL symbols based on a deferred feedback configuration configured to define PUCCH content.
19. 19 . The method of claim 18 , wherein the deferred SPS PUCCH HARQ-ACK feedback is transmitted in at least a first available UL symbol of the next set of available UL symbols with a same PUCCH format of the deferred SPS PUCCH HARQ-ACK feedback having similar physical resource blocks (PRBs) and a similar beam identifier (ID).

Description

CROSS REFERENCE TO RELATED APPLICATION(S) This application is a National Stage Application filed under 35 U.S.C. § 371 of PCT International Application No. PCT/US2022/013172, entitled “Transmission of Deferred SPS HARQ Feedback Coinciding with Current PUCCH” and filed Jan. 20, 2022, which claims the benefit of and priority to Greek application No. 20210100055, entitled “Transmission of Deferred SPS HARQ Feedback Coinciding with Current PUCCH” and filed on Jan. 29, 2021, which are expressly incorporated by reference herein in their entirety. TECHNICAL FIELD The present disclosure relates generally to communication systems, and more particularly, to a configuration for the transmission of deferred semi-persistent scheduling (SPS) hybrid automatic repeat request (HARQ) feedback in wireless communication systems. INTRODUCTION Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC-FDMA) systems, and time division synchronous code division multiple access (TD-SCDMA) systems. These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate on a municipal, national, regional, and even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of a continuous mobile broadband evolution promulgated by Third Generation Partnership Project (3GPP) to meet new requirements associated with latency, reliability, security, scalability (e.g., with Internet of Things (IoT)), and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Some aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. There exists a need for further improvements in 5G NR technology. These improvements may also be applicable to other multi-access technologies and the telecommunication standards that employ these technologies. BRIEF SUMMARY The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a device at a UE. The device may be a processor and/or a modem at a UE or the UE itself. The apparatus determines to transmit physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARD) acknowledgment (ACK) (HARQ-ACK) feedback in response to a received semi-persistently scheduled physical downlink shared channel (PDSCH). The apparatus determines that the transmission of the SPS PUCCH HARQ-ACK feedback would overlap with a downlink (DL) symbol, wherein the transmission of the SPS PUCCH HARQ-ACK feedback is deferred to another uplink (UL) symbol if the transmission of the SPS PUCCH HARQ-ACK feedback overlaps with the DL symbol. The apparatus transmits, based on the determination that the SPS PUCCH HARQ-ACK feedback would overlap with a DL symbol, a deferred SPS PUCCH HARQ-ACK feedback in one of a next set of available UL symbols or concurrently with a PUCCH HARQ-ACK feedback transmission in a next dynamically scheduled PUCCH after the DL symbol based on a deferred feedback configuration configured to define PUCCH content. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a device at a base station. The device may be a processor and/or a modem at a base station or the base station itself. The apparatus provides, to a user equipment (UE), a deferred feedback configuration to define PUCCH content, the deferred feedback configuration configured to defer transmission of physical uplink control channel (PUCCH) semi-persistent scheduling (SPS) hybrid automatic repeat request (HARD) acknowledgment (ACK) (HARQ-ACK) feedback in response to a semi-persistently scheduled physical downlink shared channel (PDSCH), wherein transmission of the PUCCH SPS