Out-of-order handling without flow control feedback

Abstract

Methods, systems, and devices for wireless communications are described. In general, the described techniques provide rules for establishing scheduling downlink data transmissions and flow control feedback for downlink data transmissions to avoid confusion at base stations and user equipment (UEs). In one example, when flow control feedback from a UE is disabled for downlink data transmissions, the UE may still operate according to the timing for reporting flow control feedback for downlink data transmissions. In this example, the UE may discard (e.g., suppress decoding) other downlink data transmissions based on the timing for reporting flow control feedback. In another example, when flow control feedback from a UE is disabled for downlink data transmissions, other downlink data transmissions to the UE may be scheduled according to one or more rules to avoid confusion.

Description

[0001] Cross-references

[0002] This patent application claims the benefit of U.S. Provisional Patent Application No. 63 / 008,154, entitled “Out-Of-Order Handling Without Flow Control Feedback,” filed by Rico Alvarino et al. on April 10, 2020, and U.S. Provisional Patent Application No. 63 / 007,308, entitled “INDICATING ORIGINAL DATA COMMUNICATIONS,” filed by RICO ALVARINO et al. on April 8, 2020, and U.S. Patent Application No. 17 / 224,531, entitled “Out-Of-Order Handling Without Flow Control Feedback,” filed by Rico Alvarino et al. on April 7, 2021; each of which is assigned to the assignee of this application.

[0003] introduction

[0004] The following relates generally to wireless communications and, more particularly, to managing data transmission with or without flow control feedback.

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth generation (4G) systems (such as long term evolution (LTE) systems, advanced LTE (LTE-A) systems, or LTE-A Pro systems), and fifth generation (5G) systems that may be referred to as new radio (NR) systems. These systems may use various technologies, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), or discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include several base stations or network access nodes, each of which simultaneously supports the communication of multiple communication devices, which may be referred to as user equipment (UE).

[0006] Overview

[0007] A method for wireless communication at a UE is described. The method may include: receiving a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and decoding or refraining from decoding the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0008] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and decode or refrain from decoding the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0009] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for receiving a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and means for decoding or refraining from decoding the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0010] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and decode or refrain from decoding the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0011] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for decoding or refraining from decoding a second downlink data transmission based on whether the second downlink data transmission may be scheduled within or after a threshold amount of time after the first downlink data transmission.

[0012] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for suppressing decoding of a second downlink data transmission based on the second downlink data transmission being scheduled within a threshold amount of time after the first downlink data transmission.

[0013] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for decoding a second downlink data transmission based on the second downlink data transmission being scheduled after a threshold amount of time after the first downlink data transmission.

[0014] In some examples of the methods, devices, and non-transitory computer-readable media described herein, the first downlink data transmission and the second downlink data transmission include the same transport block.

[0015] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the threshold amount of time may be based on a set of parameters for the first downlink data transmission, the second downlink data transmission, or both.

[0016] In some examples of the methods, devices, and non-transitory computer-readable media described herein, the threshold amount of time is based at least in part on: the number of code elements used for the first downlink data transmission, the number of code elements used for the second downlink data transmission, a demodulation reference signal (DMRS) pattern associated with the first downlink data transmission, a DMRS pattern associated with the second downlink data transmission, or a processing capability of the UE, or a combination thereof.

[0017] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for decoding a second downlink data transmission, regardless of when the second downlink data transmission may be scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0018] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the UE and the base station may be operating in a non-terrestrial network (NTN).

[0019] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving downlink control information (DCI) scheduling a first downlink data transmission and a second downlink data transmission.

[0020] A method for wireless communication at a base station is described. The method may include: transmitting a first downlink data transmission and a second downlink data transmission to a UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and transmitting the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0021] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: transmit a first downlink data transmission and a second downlink data transmission to a UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and transmit the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0022] Another apparatus for wireless communication at a base station is described. The apparatus may include: means for transmitting a first downlink data transmission and a second downlink data transmission to a UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and means for transmitting the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0023] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit a first downlink data transmission and a second downlink data transmission to a UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and transmit the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0024] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for: determining that flow control feedback can be disabled for a first downlink data transmission; and transmitting a DCI that schedules a second downlink data transmission after a threshold amount of time after the first downlink data transmission based on disabling flow control feedback for the first downlink data transmission.

[0025] In some examples of the methods, devices, and non-transitory computer-readable media described herein, the first downlink data transmission and the second downlink data transmission include the same transport block.

[0026] Some examples of the methods, devices, and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for: determining that flow control feedback can be disabled for a first downlink data transmission; and transmitting a DCI that schedules a second downlink data transmission, regardless of when the first downlink data transmission can be scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0027] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0028] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting a DCI scheduling a first downlink data transmission and a second downlink data transmission.

[0029] A method for wireless communication at a UE is described. The method may include: receiving a DCI scheduling a downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; decoding a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process; decoding a second field in the DCI associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that flow control feedback is disabled for the flow control feedback process based on the first field; and suppressing, based on disabling flow control feedback for the downlink data transmission, transmitting flow control feedback for the downlink data transmission to the base station, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0030] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive a DCI scheduling downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; decode a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process; decode a second field in the DCI associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that flow control feedback is disabled for the flow control feedback process based on the first field; and suppress transmission of flow control feedback for the downlink data transmission to the base station based on disabling flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0031] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for receiving a DCI scheduling a downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; means for decoding a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process; means for decoding a second field in the DCI associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that flow control feedback is disabled for the flow control feedback process based on the first field; and means for suppressing transmission of flow control feedback for the downlink data transmission to the base station based on disabling flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0032] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to perform the following operations: receiving a DCI scheduling downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; decoding a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process; decoding a second field in the DCI associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that flow control feedback is disabled for the flow control feedback process based on the first field; and suppressing transmission of flow control feedback for the downlink data transmission to the base station based on disabling flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0033] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the first field includes a flow control field.

[0034] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the second field includes a downlink assignment index (DAI) or a transmit power control (TPC) field.

[0035] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0036] A method for wireless communication at a base station is described. The method may include: transmitting a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback procedure, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback procedure; and transmitting a second field in the DCI associated with the flow control feedback procedure associated with the downlink data.

[0037] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: transmit a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process; and transmit a second field in the DCI associated with the flow control feedback process associated with the downlink data.

[0038] Another apparatus for wireless communication at a base station is described. The apparatus may include: means for transmitting a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process; and means for transmitting a second field in the DCI associated with a flow control feedback process associated with the downlink data.

[0039] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process; and transmit a second field in the DCI associated with the flow control feedback process associated with the downlink data.

[0040] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the first field includes a flow control field.

[0041] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the second field includes a DAI or a TPC field.

[0042] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0043] A method for wireless communication at a UE is described. The method may include: receiving a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; refraining from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission; receiving a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission; and refraining from decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0044] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; suppress reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission; receive a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission; and suppress decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0045] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for receiving a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; means for refraining from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission; means for receiving a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission; and means for refraining from decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0046] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to perform the following operations: receiving a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; refraining from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission; receiving a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission; and refraining from decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0047] In some examples of the methods, devices, and non-transitory computer-readable media described herein, the downlink data transmission is scheduled by a DCI, which includes a first DCI, and the method, device, and non-transitory computer-readable media may further include operations, features, devices, or instructions for the following actions: receiving a second DCI that schedules a second downlink data transmission; determining that a second downlink data transmission can be scheduled after the downlink data transmission and that flow control feedback for the second downlink data transmission can be scheduled before flow control feedback for the first downlink data transmission; and suppressing decoding of the second downlink data transmission based on the determination.

[0048] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving an indication in a DCI of timing for reporting flow control feedback for the downlink data transmission to the base station.

[0049] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving a set of multiple timings in radio resource control (RRC) signaling for reporting flow control feedback for the downlink data transmission to the base station.

[0050] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, identifying the timing may include operations, features, apparatus, or instructions for the following actions: selecting a timing for reporting flow control feedback to the base station from a set of multiple timings in the RRC signaling.

[0051] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the selected timing may be the maximum timing, the minimum timing, or the first timing in a set of multiple timings in the RRC signaling, or the selected timing in the set of multiple timings may be indicated by another parameter.

[0052] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the selected timing may be based on a flow control feedback round trip time (RTT) configured in RRC signaling.

[0053] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, timing for reporting flow control feedback for the downlink data transmission to the base station may be preconfigured at the UE.

[0054] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, timing for reporting flow control feedback for the downlink data transmission to the base station may be based on a subcarrier spacing configured for downlink data transmission.

[0055] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0056] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: receiving a DCI scheduling the downlink data transmission.

[0057] A method for wireless communication at a base station is described. The method may include: transmitting a downlink data transmission to a UE, wherein flow control feedback is disabled for the downlink data transmission; and transmitting to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0058] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: transmit a downlink data transmission to a UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0059] Another apparatus for wireless communication at a base station is described. The apparatus may include: means for transmitting a downlink data transmission to a UE, wherein flow control feedback is disabled for the downlink data transmission; and means for transmitting to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0060] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit a downlink data transmission to a UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0061] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, transmitting an indication of the timing may include operations, features, apparatus, or instructions for the following actions: transmitting in a DCI an indication of the timing for reporting flow control feedback for the downlink data transmission to the base station.

[0062] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, transmitting an indication of the timing may include operations, features, apparatus, or instructions for the following actions: transmitting in RRC signaling a set of multiple timings for reporting flow control feedback for the downlink data transmission to the base station.

[0063] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, timing for reporting flow control feedback for the downlink data transmission to the base station may be preconfigured at the base station.

[0064] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, timing for reporting flow control feedback for the downlink data transmission to the base station may be based on a subcarrier spacing configured for downlink data transmission.

[0065] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0066] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: transmitting a DCI scheduling the downlink data transmission to the UE.

[0067] A method of wireless communication at a UE is described. The method may include: receiving DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identifying timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission; and refraining from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0068] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identify timing for reporting flow control feedback for the downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission; and suppress reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0069] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identifying timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission; and refraining from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0070] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identify timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission; and refrain from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0071] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the DCI may include operations, features, apparatus, or instructions for: receiving a second DCI that schedules a second downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the first downlink data transmission; determining, based on the identified timing, that the second downlink data transmission may be scheduled after the first downlink data transmission and before the flow control feedback for the first downlink data transmission; and suppressing decoding of the second downlink data transmission based on the determination.

[0072] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the DCI may include operations, features, means, or instructions for the following actions: receiving a second DCI that schedules a second downlink data transmission; determining based on the identified timing that the second downlink data transmission may be scheduled after the first downlink data transmission and that flow control feedback for the second downlink data transmission may be scheduled before flow control feedback for the first downlink data transmission; and suppressing decoding the second downlink data transmission based on the determination. Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: receiving in the DCI an indication of the timing for reporting flow control feedback for the downlink data transmission to the base station.

[0073] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: receiving a timing set for reporting flow control feedback for the downlink data transmission to the base station in RRC signaling. In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, identifying the timing may include operations, features, devices, or instructions for the following actions: selecting a timing for reporting flow control feedback to the base station from a timing set in the RRC signaling. In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the selected timing may be the maximum timing, the minimum timing, or the first timing in the timing set in the RRC signaling, or the selected timing in the timing set may be indicated by another parameter.

[0074] In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the selected timing may be based on the flow control feedback RTT configured in the RRC signaling. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the timing for reporting flow control feedback for the downlink data transmission to the base station may be preconfigured at the UE. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the timing for reporting flow control feedback for the downlink data transmission to the base station may be based on the subcarrier spacing configured for downlink data transmission. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0075] A method of wireless communication at a base station is described. The method may include: transmitting to a UE DCI scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmitting to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0076] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: transmit to a UE a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0077] Another apparatus for wireless communication at a base station is described. The apparatus may include means for transmitting to a UE a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmitting to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0078] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit to a UE a DCI scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission.

[0079] In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, transmitting an indication of the timing may include operations, features, means, or instructions for the following actions: transmitting in the DCI an indication of the timing for reporting flow control feedback for the downlink data transmission to the base station. In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, transmitting an indication of the timing may include operations, features, means, or instructions for the following actions: transmitting in RRC signaling a timing set for reporting flow control feedback for the downlink data transmission to the base station.

[0080] In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the timing for reporting flow control feedback for the downlink data transmission to the base station may be preconfigured at the base station. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the timing for reporting flow control feedback for the downlink data transmission to the base station may be based on the subcarrier spacing configured for downlink data transmission. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0081] A method of wireless communication at a UE is described. The method may include: receiving DCI from a base station scheduling a first downlink data transmission and a second downlink data transmission, the first downlink data transmission preceding the second downlink data transmission; determining whether flow control feedback is disabled for the first downlink data transmission; decoding the first downlink data transmission; and decoding or refraining from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0082] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission; determine whether flow control feedback is disabled for the first downlink data transmission; decode the first downlink data transmission; and decode or refrain from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0083] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission; determining whether flow control feedback is disabled for the first downlink data transmission; decoding the first downlink data transmission; and decoding or refraining from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0084] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission; determine whether flow control feedback is disabled for the first downlink data transmission; decode the first downlink data transmission; and decode or refrain from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0085] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining that flow control feedback may be disabled for a first downlink data transmission; and decoding or refraining from decoding a second downlink data transmission based on whether the second downlink data transmission may be scheduled within or after a threshold amount of time after the first downlink data transmission. Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining that a second downlink data transmission may be scheduled within a threshold amount of time after a first downlink data transmission; and refraining from decoding a second downlink data transmission based on whether the second downlink data transmission is scheduled within a threshold amount of time after the first downlink data transmission.

[0086] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: determining that a second downlink data transmission may be scheduled after a threshold amount of time after a first downlink data transmission; and decoding the second downlink data transmission based on the second downlink data transmission being scheduled after a threshold amount of time after the first downlink data transmission. In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the first downlink data transmission and the second downlink data transmission may be associated with the same flow control feedback process or include the same transport block.

[0087] In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the threshold amount of time may be based on a parameter set for a first downlink data transmission, a second downlink data transmission, or both. Some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: determining that flow control feedback may be disabled for a first downlink data transmission; and decoding a second downlink data transmission, regardless of when the second downlink data transmission may be scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0088] A method of wireless communication at a base station is described. The method may include: transmitting DCI to a UE that schedules a first downlink data transmission; identifying a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; determining whether flow control feedback is disabled for the first downlink data transmission; and transmitting DCI that schedules the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0089] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: transmit DCI scheduling a first downlink data transmission to a UE; identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; determine whether flow control feedback is disabled for the first downlink data transmission; and transmit DCI scheduling the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0090] Another apparatus for wireless communication at a base station is described. The apparatus may include means for transmitting DCI to a UE that schedules a first downlink data transmission; identifying a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; determining whether flow control feedback is disabled for the first downlink data transmission; and transmitting DCI that schedules the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0091] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: transmit DCI scheduling a first downlink data transmission to a UE; identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; determine whether flow control feedback is disabled for the first downlink data transmission; and transmit DCI scheduling the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0092] Some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for: determining that flow control feedback may be disabled for a first downlink data transmission; and transmitting a DCI that schedules a second downlink data transmission after a threshold amount of time after the first downlink data transmission based on disabling flow control feedback for the first downlink data transmission. In some examples of the methods, devices (apparatus), and non-transitory computer-readable media described herein, the first downlink data transmission and the second downlink data transmission may be associated with the same flow control feedback process or include the same transport block.

[0093] Some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: determining that flow control feedback may be disabled for a first downlink data transmission; and transmitting a DCI that schedules a second downlink data transmission, regardless of when the first downlink data transmission may be scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission. In some examples of the methods, devices (apparatus), and non-transient computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0094] A method of wireless communication at a UE is described. The method may include: receiving DCI scheduling downlink data transmission from a base station; identifying a flow control feedback process associated with the downlink data transmission; determining to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and refraining from transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0095] An apparatus for wireless communication at a UE is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: receive DCI scheduling downlink data transmission from a base station; identify a flow control feedback process associated with the downlink data transmission; determine to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and suppress transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0096] Another apparatus for wireless communication at a UE is described. The apparatus may include means for: receiving DCI scheduling downlink data transmission from a base station; identifying a flow control feedback process associated with the downlink data transmission; determining to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and refraining from transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0097] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by a processor to: receive DCI scheduling downlink data transmission from a base station; identify a flow control feedback process associated with the downlink data transmission; determine to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and suppress transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0098] In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, identifying the flow control feedback process may include operations, features, devices, or instructions for the following actions: decoding a first field in the DCI indicating that flow control feedback may be disabled for the flow control feedback process; and decoding a second field in the DCI indicating a flow control feedback process associated with the downlink data transmission, wherein decoding the second field may be based on the first field indicating that flow control feedback may be disabled for the flow control feedback process. In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, the first field includes a flow control field. In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, the second field includes a DAI or TPC field. In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, the UE and the base station may be operating in an NTN.

[0099] A method of wireless communication at a base station is described. The method may include: identifying downlink data to be transmitted to a UE; determining that flow control feedback from the UE is to be disabled for the downlink data; identifying a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination; and transmitting a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0100] An apparatus for wireless communication at a base station is described. The apparatus may include a processor and a memory coupled to the processor. The processor and the memory may be configured to: identify downlink data to be transmitted to a UE; determine that flow control feedback from the UE is to be disabled for the downlink data; identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination; and transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0101] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: identifying downlink data to be transmitted to a UE; determining to disable flow control feedback from the UE for the downlink data; identifying a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination; and transmitting a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0102] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by a processor to: identify downlink data to be transmitted to a UE; determine to disable flow control feedback from the UE for the downlink data; identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination; and transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0103] In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, transmitting a DCI indicating that the downlink data may be associated with the identified flow control feedback process may include operations, features, devices, or instructions for the following actions: transmitting in the DCI a first field indicating that flow control feedback may be disabled for the flow control feedback process; and transmitting in the DCI a second field indicating a flow control feedback process associated with the downlink data. In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, the first field includes a flow control field. In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, the second field includes a DAI or TPC field. In some examples of the methods, devices (devices), and non-transient computer-readable media described herein, the UE and the base station may be operating in an NTN. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Figure 1

[0013] An example of a wireless communication system that supports out-of-order handling without using flow control feedback in accordance with one or more aspects of the present disclosure is illustrated.

[0106] Figure 2

[0013] An example of a wireless communication system that supports out-of-order handling without using flow control feedback in accordance with one or more aspects of the present disclosure is illustrated.

[0107] Figure 3A and 3B An example of a block diagram showing physical downlink shared channel (PDSCH) transmission and flow control feedback is illustrated in accordance with one or more aspects of the present disclosure.

[0108] Figure 4 An example of a block diagram showing PDSCH transmissions in accordance with one or more aspects of the present disclosure is illustrated.

[0109] Figure 5 An example of a process flow supporting out-of-order handling without using flow control feedback in accordance with one or more aspects of the present disclosure is illustrated.

[0110] Figure 6 and 7 A block diagram of an apparatus supporting out-of-order handling without flow control feedback in accordance with one or more aspects of the present disclosure is shown.

[0111] Figure 8 A block diagram of a communication manager supporting out-of-order handling without flow control feedback is shown in accordance with one or more aspects of the present disclosure.

[0112] Fig. 9A diagram of a system including a device that supports out-of-order handling without flow control feedback is shown in accordance with one or more aspects of the present disclosure.

[0113] Fig.10 and 11 A block diagram of an apparatus supporting out-of-order handling without flow control feedback in accordance with one or more aspects of the present disclosure is shown.

[0114] Fig.12 A block diagram of a communication manager supporting out-of-order handling without flow control feedback is shown in accordance with one or more aspects of the present disclosure.

[0115] Fig.13 A diagram of a system including a device that supports out-of-order handling without flow control feedback is shown in accordance with one or more aspects of the present disclosure.

[0116] Figures 14 to 25 A flow chart illustrating a method of supporting out-of-order handling without using flow control feedback in accordance with one or more aspects of the present disclosure is shown.

[0117] Detailed Description

[0118] In some wireless communication systems, a base station may transmit data to a UE in multiple downlink data channels. In some cases, the UE may be configured to report flow control feedback (e.g., hybrid automatic repeat request (HARQ) feedback) for downlink data in the downlink data channel to the base station. The base station may use the flow control feedback to determine whether to schedule retransmission of the downlink data (e.g., if the UE fails to receive the downlink data). Additionally, when the UE is configured to report flow control feedback for downlink data in the multiple downlink data channels to the base station, the wireless communication system may establish rules for preventing confusion at the UE or the base station.

[0119] In one example, if the UE is scheduled for a first data transmission, such as a downlink data transmission (e.g., a first PDSCH transmission) or an uplink data transmission (e.g., a first physical uplink shared channel (PUSCH) transmission), then if the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process, it may not be expected that the UE receives and / or transmits the second data transmission, such as a downlink data transmission (e.g., a second PDSCH transmission) or an uplink data transmission (e.g., a second PUSCH transmission) before transmitting flow control feedback for the first downlink data transmission. In another example, if the UE is scheduled for a first downlink data transmission, it may not be expected that the UE receives a second downlink data transmission after the first downlink data transmission and reports flow control feedback for the second downlink data transmission before reporting flow control feedback for the first downlink data transmission.

[0120] In these examples, when the base station receives flow control feedback, the base station may be able to identify that the flow control feedback is for a first downlink data transmission. That is, based on the above rules, the base station may not misinterpret flow control feedback for one downlink data transmission as flow control feedback for another downlink data transmission. Because such confusion may be prevented, the base station may not incorrectly schedule retransmissions or may avoid scheduling retransmissions for downlink data transmissions. However, in some situations, the UE may not be scheduled to report flow control feedback for downlink data transmissions, and the above established rules that depend on the UE reporting flow control feedback may not apply.

[0121] As described herein, a wireless communication system may support efficient techniques for facilitating downlink data transmission and optional flow control feedback while avoiding confusion at base stations and UEs. In one example, when flow control feedback from a UE is disabled for downlink data transmission, the UE may still operate according to the timing for reporting flow control feedback for downlink data transmission. In this example, the UE may discard (e.g., suppress decoding) other downlink data transmissions based on the timing for reporting flow control feedback. In another example, when flow control feedback from a UE is disabled for downlink data transmission, other downlink data transmissions to the UE may be scheduled according to one or more rules to avoid confusion. Additionally, a wireless communication system may support a flow control feedback process associated with disabled flow control feedback so that the UE may be able to identify when to suppress reporting flow control feedback for downlink data transmission.

[0122] The various aspects of the present disclosure introduced above are described below in the context of a wireless communication system. Various examples of processes and signaling exchanges that support out-of-order handling without flow control feedback are subsequently described. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow charts related to out-of-order handling without flow control feedback.

[0123] Figure 1 An example of a wireless communication system 100 that supports out-of-order handling without flow control feedback according to one or more aspects of the present disclosure is illustrated. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be an LTE network, an LTE-A network, an LTE-A Pro network, or a new radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0124] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be different forms of devices or devices with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0125] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be different forms of devices or devices with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), such as Figure 1 as shown in .

[0126] Each base station 105 may communicate with the core network 130, or communicate with each other, or both. For example, the base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3 or other interfaces). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105), or indirectly (e.g., via the core network 130), or directly and indirectly on the backhaul link 120 (e.g., via X2, Xn or other interfaces). In some examples, the backhaul link 120 may be or include one or more wireless links. The UE 115 may communicate with the core network 130 via a communication link 155.

[0127] One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a B node, an evolved B node (eNB), a next generation B node or a gigabit B node (any of which may be referred to as a gNB), a home B node, a home evolved B node, or other suitable terminology.

[0128] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable term, where a "device" may also be referred to as a unit, a station, a terminal, or a client, etc. UE 115 may also include or may be referred to as a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as electrical appliances or vehicles, meters, etc.

[0129] The UE 115 described herein may be able to communicate with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 as shown in .

[0130] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support communication with the UE 115 using carrier aggregation or multi-carrier operation. The UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.

[0131] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105 (e.g., on a physical uplink control channel (PUCCH) or PUCCH), or a downlink transmission from the base station 105 to the UE 115 (e.g., on a physical downlink control channel (PDCCH) or PDSCH). A carrier may carry downlink or uplink communications (e.g., in FDD mode), or may be configured to carry downlink and uplink communications (e.g., in TDD mode).

[0132] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or DFT-S-OFDM). In a system using MCM techniques, a resource element may include a code element period (e.g., the duration of a modulation code element) and a subcarrier, where the code element period and the subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers can further improve the data rate or data integrity of communication with UE 115.

[0133] Base station 105 and UE 115 may support communication on a carrier using one or more numerologies, where the numerologies may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different numerologies. In some examples, UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communication for UE 115 may be limited to one or more active BWPs.

[0134] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, and the basic time unit can be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the maximum supported subcarrier spacing, and N f The maximum supported discrete Fourier transform (DFT) size may be indicated. Time intervals of communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0135] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a number of time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include a number of code element periods (e.g., depending on the length of the cyclic prefix added before each code element period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini-time slots containing one or more code elements. Excluding the cyclic prefix, each code element period may contain one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating band.

[0136] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0137] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may extend across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0138] In some examples, base stations 105 may be mobile and thus provide communication coverage for mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0139] The wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication or various combinations thereof. For example, the wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency or critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services (such as mission-critical push-to-talk (MCPTT), mission-critical video (MCVideo), or mission-critical data (MCData). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general commercial applications. The terms ultra-reliable, low latency, critical mission, and ultra-reliable low latency may be used interchangeably herein.

[0140] In some examples, UE 115 may also be able to communicate directly with other UE 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105, or may not be able to receive transmissions from the base station 105 for other reasons. In some examples, each group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between each UE 115 without involving the base station 105.

[0141] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), and the EPC or 5GC may include at least one control plane entity (e.g., a mobility management entity (MME), an access and mobility management function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a base station 105 associated with the core network 130. User IP packets may be delivered via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. Operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0142] Some network devices (such as base stations 105) may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio heads and ANCs) or merged into a single network device (e.g., base station 105).

[0143] The wireless communication system 100 may operate using one or more frequency bands, such as in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). The 300 MHz to 3 GHz region may be referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths are in the range of from about 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features, but these waves may penetrate various structures sufficiently for macro cells to provide service to UEs 115 located indoors. Transmission of UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than transmission using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0144] The electromagnetic spectrum is typically subdivided into various classes, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified as frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "sub-6 GHz band" in various documents and articles. Similar naming issues sometimes arise with respect to FR2, which is often (interchangeably) referred to as the "millimeter wave" band in various documents and articles, although it is different from the extremely high frequency (EHF) band (30 GHz–300 GHz) identified as the "millimeter wave" band by the International Telecommunication Union (ITU).

[0145] Frequencies between FR1 and FR2 are generally referred to as mid-band frequencies. Recent 5G NR research has identified the operating bands of these mid-band frequencies as frequency range designation FR3 (7.125GHz–24.25GHz). The bands falling within FR3 can inherit FR1 characteristics and / or FR2 characteristics, and thus the features of FR1 and / or FR2 can be effectively extended to mid-band frequencies. Additionally, higher frequency bands are currently being explored to extend 5G NR operations to above 52.6GHz. For example, three higher operating bands have been identified as frequency range designations FR4a or FR4-1 (52.6GHz–71GHz), FR4 (52.6GHz–114.25GHz), and FR5 (114.25GHz–300GHz). Each of these higher frequency bands falls within the EHF band.

[0146] In view of the above aspects, unless otherwise specifically stated, it should be understood that if used in this document, the term "sub-6 GHz" and the like can broadly refer to frequencies that can be less than 6 GHz, can be within FR1, or can include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that if used in this document, the term "millimeter wave" and the like can broadly refer to frequencies that can include mid-band frequencies, can be within FR2, FR4, FR4-a or FR4-1 and / or FR5, or can be within the EHF band.

[0147] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz industrial, scientific, and medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) may employ carrier sensing for conflict detection and avoidance. In some examples, operations in an unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in a licensed band. Operations in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0148] The base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having antenna ports of several rows and columns that the base station 105 can use to support beamforming for communications with the UE 115. Similarly, the UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.

[0149] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0150] UE 115 and base station 105 may support retransmission of data to increase the likelihood of data being successfully received. HARQ control feedback is a technique for increasing the likelihood of data being correctly received on communication link 125. An example of flow control feedback (i.e., feedback controlling the communication flow between base station 105 and UE 115) is HARQ feedback. HARQ feedback may include an acknowledgement (ACK) indicating that the receiving device has successfully decoded the transmission and a negative ACK (NACK) indicating that the receiving device has failed to decode the transmission. HARQ may include a combination of error detection (e.g., using a cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ may improve the throughput of the media access control (MAC) layer in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support simultaneous slot HARQ feedback, wherein the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0151] In the wireless communication system 100, the base station 105 may transmit data to the UE 115 in multiple PDSCHs. In some cases, the UE 115 may be configured to report flow control feedback for the downlink data in the PDSCH to the base station 105. The base station 105 may use the flow control feedback to determine whether to schedule a retransmission of the downlink data (e.g., if the UE 115 fails to receive the downlink data). Additionally, when the UE 115 is configured to report flow control feedback for the downlink data in the multiple PDSCHs to the base station 105, the wireless communication system 100 may establish rules for preventing confusion at the UE 115 or the base station 105.

[0152] In one example, if UE 115 is scheduled to receive a first PDSCH, then if the first PDSCH and the second PDSCH are associated with the same flow control feedback process, it may not be expected that UE 115 receives the second PDSCH before transmitting flow control feedback for the first PDSCH. In another example, if UE 115 is scheduled for a first PDSCH, it may not be expected that UE 115 receives a second PDSCH after the first PDSCH and reports flow control feedback for the second PDSCH before reporting flow control feedback for the first PDSCH. In yet another example, for any PDSCH corresponding to a system information radio network temporary identifier (SI-RNTI), it may not be expected that UE 115 decodes a retransmission of an early PDSCH whose starting symbol is less than N symbols after the last symbol of the PDSCH, where the value of N depends on the PDSCH subcarrier spacing configuration. In some cases, if a first transmission (e.g., PDSCH, feedback, or other transmission) starts before a second transmission (e.g., PDSCH, feedback, or other transmission) (e.g., the start codeword of the first transmission is before the start codeword of the second transmission), the first transmission is scheduled before or before the second transmission.

[0153] In these examples, when the base station 105 receives flow control feedback, the base station 105 may be able to identify that the flow control feedback is for the first PDSCH. That is, based on the above rules, the base station 105 may not misinterpret the flow control feedback for one downlink data transmission (e.g., the first PDSCH) as flow control feedback for another downlink data transmission (e.g., the second PDSCH). Because such confusion can be prevented, the base station 105 may not mistakenly schedule retransmissions or may avoid scheduling retransmissions for downlink data transmissions. However, in some cases, the UE 115 may not be configured to report flow control feedback for some PDSCHs (e.g., in NTN), and the above-established rules that depend on the UE 115 reporting flow control feedback may not apply. The wireless communication system 100 may support efficient techniques for facilitating downlink data transmission and optional flow control feedback while avoiding confusion at the base station 105 and the UE 115.

[0154] The base station 105 may include a communication manager 101. The communication manager 101 may transmit to a UE 115 a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. The communication manager 101 may then transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station 105 if flow control feedback is disabled for the downlink data transmission.

[0155] The communications manager 101 may also transmit a DCI scheduling a first downlink data transmission to the UE 115. The communications manager 101 may identify a second downlink data transmission for the UE 115, the first downlink data transmission preceding the second downlink data transmission. The communications manager 101 may determine whether flow control feedback is disabled for the first downlink data transmission and transmit the DCI scheduling the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0156] The communication manager 101 may also identify downlink data to be transmitted to the UE; and determine to disable flow control feedback from the UE for the downlink data. The communication manager 101 may identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination. The communication manager 101 may then transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0157] UE 115 may include communication manager 102. Communication manager 102 may receive DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. Communication manager 102 may identify timing for reporting flow control feedback for the downlink data transmission to the base station if flow control feedback is disabled for the downlink data transmission. Communication manager 102 may refrain from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0158] The communication manager 102 may receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission. The communication manager 102 may determine whether flow control feedback is disabled for the first downlink data transmission. The communication manager 102 may then decode the first downlink data transmission and decode or refrain from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0159] The communication manager 102 may receive DCI scheduling downlink data transmission from a base station and identify a flow control feedback process associated with the downlink data transmission. The communication manager 102 may determine to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and refrain from transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0160] Figure 2An example of a wireless communication system 200 that supports out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure is illustrated. The wireless communication system 200 includes a UE 115-a, which may be a UE 115-a as described with reference to FIG. Figure 1 The wireless communication system 200 may also include a base station 105-a, which may be a base station 105-a. Figure 1 An example of a base station 105 is depicted. Base station 105-a may provide communication coverage for coverage area 110-a. Wireless communication system 200 may implement aspects of wireless communication system 100. For example, wireless communication system 200 may support efficient techniques for facilitating downlink data transmission and optional flow control feedback while avoiding confusion at base station 105-a and UE 115-a.

[0161] exist Figure 2 In the example of , the base station 105-a may transmit a DCI 205 to the UE 115-a that schedules a downlink data transmission in the PDSCH 210. However, the flow control feedback 215 for the PDSCH 210 may be disabled. For example, the base station 105-a may not configure the UE 115-a to report the flow control feedback 215 for the PDSCH 210. Thus, the base station 105-a and the UE 115-a may use the techniques described herein to facilitate downlink data transmission in the PDSCH 210 and other downlink data transmissions in other PDSCHs while avoiding confusion at the base station 105-a and the UE 115-a (e.g., if another downlink data transmission in another PDSCH is scheduled). In addition, the techniques described herein may allow efficient pipelining at the UE 115-a (e.g., receiving the PDSCHs sequentially and optionally reporting flow control feedback for the PDSCHs). Various aspects of these techniques are referenced herein. Figure 3A and 3B and Figure 4 To describe.

[0162] Figure 3A and 3B Examples of block diagrams 300 - a and 300 - b showing PDSCH transmission and flow control feedback, respectively, are illustrated in accordance with one or more aspects of the present disclosure. Figure 3A and 3BIn the example of , when flow control feedback from UE 115 is disabled for PDSCH, UE 115 may still operate according to the timing for reporting flow control feedback for PDSCH. The timing for reporting flow control feedback for PDSCH may indicate a time interval (e.g., a subframe, a time slot, or a symbol) in which flow control feedback may be transmitted (e.g., even when flow control feedback is disabled). As illustrated, the base station 105 may schedule a first PDSCH 305-a, and flow control feedback 310-a for the first PDSCH 305-a may be disabled. Nevertheless, the UE 115 may identify the timing for reporting flow control feedback 310-a, and the UE 115 may use the timing to determine whether to discard another PDSCH. Similarly, the base station 105 may also identify the timing for the UE to report flow control feedback 310-a, and the base station 105 may use the timing to schedule other PDSCHs. The flow control feedback 310-a (eg, disabled flow control feedback) may be referred to as virtual flow control feedback (eg, virtual HARQ-ACK).

[0163] In the first example 300-a, if the first PDSCH 305-a and the second PDSCH 305-b are associated with the same flow control feedback process, it may not be expected that the UE 115 receives the second PDSCH 305-b before the time for reporting the flow control feedback 310-a for the first PDSCH 305-a. Thus, the base station 105 can avoid scheduling the second PDSCH 305-b between the first PDSCH 305-a and the time for reporting the flow control feedback 310-a. If the UE 115 is scheduled for the second PDSCH 305-b, the UE 115 can discard the second PDSCH 305-b (e.g., suppress decoding the second PDSCH 305-b). That is, if the UE 115 is scheduled as explained in the first example 300-a, the UE 115 can discard the second PDSCH 305-b.

[0164] In the second example 300-b, if the time for reporting flow control feedback 310-b for the second PDSCH 305-b is before the time for reporting flow control feedback 310-a for the first PDSCH 305-a, it may not be expected that UE 115 will receive the second PDSCH 305-b after the first PDSCH 305-a. In this example, flow control feedback 310-b for the second PDSCH 305-b may be enabled or disabled. If flow control feedback is disabled for the second PDSCH 305-b, the base station 105 may still use the timing for UE 115 to report flow control feedback 310-b to determine whether to schedule the second PDSCH 305-b, and the UE 115 may still use the timing for reporting flow control feedback 310-b to determine whether to discard the second PDSCH 305-b. For example, when the time for reporting flow control feedback 310-b is before the time for reporting flow control feedback 310-a for the first PDSCH 305-a, the base station 105 may avoid scheduling the second PDSCH 305-b after the first PDSCH 305-a. If the UE 115 is scheduled for the second PDSCH 305-b, the UE 115 may discard the second PDSCH 305-b (e.g., refrain from decoding the second PDSCH 305-b). Figure 3A Can be Figure 3A Further examples of Figure 3A 3B, or both, the flow control feedback 310-a described may be as described in reference Figure 2 An example of flow control feedback 215 is described. Figure 3B , or both described flow control feedback 310-b may be as described with reference to Figure 2 An example of flow control feedback 215 is described. Figure 3A The PDSCH 305-a or PDSCH 305-b, or both, described in 3B or 3A may be as described in reference to Figure 2 An example of the PDSCH 210 is described.

[0165] In some cases, when flow control feedback (e.g., virtual flow control feedback) is disabled, the timing for reporting flow control feedback (e.g., K1) may be preconfigured at the UE 115 and the base station 105. The timing may be different for different subcarrier spacings. In other cases, when flow control feedback is disabled, the base station 105 may transmit a DCI indicating the timing for reporting flow control feedback. Specifically, the timing for reporting flow control feedback may be signaled in the DCI, but the UE 115 may not be expected to transmit flow control feedback (e.g., the UE 115 uses the timing value to determine the timeline and drop rules).

[0166] In some cases, when flow control feedback is disabled, UE 115 may derive the timing for reporting flow control feedback from the RRC configuration. For example, base station 105 may transmit a timing set in RRC signaling (e.g., a downlink data to uplink ACK information element indicating multiple timings between downlink data and uplink flow control feedback). When flow control feedback is disabled, UE 115 may then select the timing for reporting flow control feedback from the set (e.g., when no flow control feedback is provided, UE 115 may use one of these timings). In one example, UE 115 may select the maximum or minimum timing in the timing set, or UE 115 may select the first entry in the timing set (e.g., an entry with an index of 0). In another example, UE 115 may select the timing in the timing set based on another parameter indicating which entry in the entry is to be selected. For example, UE 115 may receive a DCI including a parameter indicating the timing that UE 115 is to select from the timing set, and UE 115 may select the indicated timing. In yet another example, when flow control feedback is disabled, the timing for reporting flow control feedback may be based on the flow control RTT (eg, a HARQ-RTT timer configuration).

[0167] Figure 4 An example of a block diagram 400 showing PDSCH transmissions according to one or more aspects of the present disclosure is illustrated. Figure 4 In an example of , when flow control feedback from UE 115 is disabled for PDSCH, base station 105 may schedule other PDSCH transmissions to UE 115 according to one or more rules to avoid confusion at base station 105 and UE 115. In one example, a wireless communication system may define a minimum distance (e.g., in units of slots or symbols) between two consecutive PDSCHs corresponding to the same flow control feedback process or including the same transport block (e.g., PDSCH transmissions with the same HARQ, the same new data indicator (NDI), or the same transport block). The minimum distance may be different for different parameter sets, number of symbols, and DMRS patterns for PDSCH transmission, or the minimum distance may depend on UE processing capabilities, etc. In some cases, the minimum distance may also depend on a HARQ-RTT timer. Figure 4 Can be Figure 3A or 3B, or further examples of both. PDSCH 405-a, PDSCH 405-b, or PDSCH 405-c, or a combination thereof may be as described in reference Figure 2 An example of the PDSCH 210 described herein may be as described with reference to Figure 3A and 3B Examples of PDSCH 305 - a or PDSCH 305 - b, or a combination thereof, are described.

[0168] exist Figure 4 An example of a minimum distance (e.g., a threshold time) is illustrated in . The base station 105 may transmit a DCI scheduling a first PDSCH 405-a to the UE 115. It may not be expected that the UE 115 will receive another PDSCH within a threshold time 410 (e.g., a minimum time or distance) after the first PDSCH 405-a. Thus, the base station 105 may avoid scheduling a second PDSCH 405-b within a threshold time 410 after the first PDSCH 405-a, but the base station 105 may schedule a third PDSCH 405-c after the threshold time 410 after the first PDSCH 405-a. If the UE 115 is scheduled for the second PDSCH 405-b within the threshold time 410, the UE 115 may discard the second PDSCH 405-b (e.g., refrain from decoding the second PDSCH 405-b). In another example ( Figure 4 In the embodiment of the present invention, if UE 115 is scheduled to receive a first PDSCH and flow control feedback is disabled for the first PDSCH, UE 115 may not discard a second PDSCH (e.g., regardless of when the second PDSCH is scheduled and regardless of the timing for reporting flow control feedback for the second PDSCH). That is, if UE 115 receives a PDSCH corresponding to a HARQ process that does not use HARQ-ACK feedback, UE 115 may ignore the out-of-order rule (e.g., UE 115 may not be allowed to discard other PDSCHs based on the PDSCH).

[0169] In addition to the above techniques, the wireless communication system may support a flow control feedback process associated with disabled flow control feedback so that the UE 115 may be able to identify when to suppress the transmission of flow control feedback for downlink data transmission. As an example, the number of flow control feedback processes may be increased, and there may be a maximum number (e.g., 15) of flow control feedback processes that use flow control feedback (e.g., associated with a PDSCH for which flow control feedback is enabled). In addition, unused bits in the DCI may be reused to signal the remaining (e.g., additional) flow control feedback processes. For example, if there are 31 flow control feedback processes, and 15 of these flow control feedback processes use flow control feedback (e.g., flow control feedback is enabled for 15 processes), a flow control ID in the range of 0-14 may indicate a flow control feedback process for which flow control feedback is enabled. A flow control ID of 15 in the flow control ID field (e.g., HARQ ID=15) may indicate a flow control feedback process for which flow control feedback is disabled. Subsequently, another field in the DCI (e.g., four bits from the DAI field or the TPC field for PUCCH) may indicate one of the 16 flow control feedback processes for which flow control feedback is disabled. Because the DAI field and the TPC field for PUCCH may provide information for reporting flow control feedback, these fields may not be used when flow control feedback is disabled. Thus, the UE 115 may interpret these fields differently based on whether flow control feedback is disabled (e.g., based on an indication in the Flow Control Feedback ID field).

[0170] Figure 5 An example of a process flow 500 for supporting out-of-order handling without using flow control feedback in accordance with one or more aspects of the present disclosure is illustrated. The process flow 500 illustrates aspects of a technique performed by a UE 115-b, which may be a reference Figures 1 to 4 The process flow 500 also illustrates aspects of the technique performed by a base station 105-b, which may be a reference to Figures 1 to 4 An example of a base station 105 is depicted. Process flow 500 may support efficient techniques for facilitating downlink data transmission and optional flow control feedback while avoiding confusion at base station 105-b and UE 115-b.

[0171] At 505, the base station 105-b may transmit a DCI scheduling a first downlink data transmission to the UE 115-b, wherein flow control feedback may be disabled for the first downlink data transmission. At 510, the base station 105-b may transmit the first downlink data transmission to the UE 115-b. In some cases, at 515, although the flow control feedback may be disabled for the first downlink data transmission, the UE 115-b may identify the timing for reporting the flow control feedback for the first downlink data transmission. In such a case, the UE 115-b may still suppress reporting the flow control feedback for the downlink data transmission. In one example, the UE 115-b may receive in the DCI at 505 an indication of the timing for reporting the flow control feedback for the first downlink data transmission to the base station 105-b.

[0172] In another example, UE 115-b may receive multiple timings in RRC signaling for reporting flow control feedback for downlink data transmission to base station 105-b. In this example, UE 115-b may select the timing for reporting flow control feedback to base station 105-b from the multiple timings in the RRC signaling. The selected timing may be the maximum timing, the minimum timing, or the first timing (e.g., the first timing in a set) among the multiple timings, or the selected timing may be indicated by another parameter. In addition, the selected timing may be based on the flow control feedback RTT configured in the RRC signaling. In yet another example, the timing for reporting flow control feedback for the first downlink data transmission to base station 105-b may be preconfigured at base station 105-b and UE 115-b. In this example, the timing may be based on the subcarrier spacing configured for the first downlink data transmission.

[0173] At 520, the base station 105-b may transmit a DCI that schedules a second downlink data transmission. At 525, the base station 105-b may transmit the second downlink data transmission to the UE 115-b. At 530, the UE 115-b may decode the first downlink data transmission. If the UE 115-b determines (e.g., based on the timing for reporting flow control feedback for the first downlink data transmission) that the second downlink data transmission is scheduled after the first downlink data transmission and before the flow control feedback for the first downlink data transmission, then at 535, the UE 115-b may refrain from decoding the second downlink data transmission. If the UE 115-b determines that the second downlink data transmission is scheduled after the first downlink data transmission and the flow control feedback for the second downlink data transmission is scheduled before the flow control feedback for the first downlink data transmission, then at 535, the UE 115-b may refrain from decoding the second downlink data transmission.

[0174] In some cases, if UE 115-b determines that the second downlink data transmission is scheduled within a threshold amount of time after the first downlink data transmission, then at 535, UE 115-b may refrain from decoding the second downlink data transmission. In other cases, if UE 115-b determines that the second downlink data transmission is scheduled after a threshold amount of time after the first downlink data transmission, then at 535, UE 115-b may decode the second downlink data transmission. In yet other cases, at 535, UE 115-b may decode the second downlink data transmission regardless of when the second downlink data transmission is scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission. At 540, if flow control feedback is enabled for the second downlink data transmission, UE 115-b may transmit flow control feedback for the second downlink data transmission to base station 105-b. Otherwise, UE 115-b may refrain from transmitting flow control feedback for the second downlink data transmission to base station 105-b.

[0175] In some cases, UE 115-b may determine whether to disable flow control feedback for the first downlink data transmission based on the flow control feedback process associated with the first downlink data transmission. For example, the DCI at 505 may indicate the flow control feedback process associated with the first downlink data transmission, and the flow control feedback process may indicate whether to disable or enable flow control feedback for the first downlink data transmission. UE 115-b may identify the flow control feedback process associated with the first downlink data transmission based on decoding the DCI. A first field in the DCI (e.g., a flow control feedback ID field) may indicate a flow control feedback process for which flow control feedback is enabled (e.g., HARQ ID=0-14), or a first field may indicate that flow control feedback is disabled for the flow control feedback process (e.g., HARQ ID=15). If flow control feedback is disabled for a flow control feedback process, UE 115-b may decode a second field (e.g., DAI, TPC, etc.) indicating a flow control feedback process for which flow control feedback is disabled.

[0176] Figure 6 A block diagram 600 of a device 605 supporting out-of-order handling without flow control feedback according to one or more aspects of the present disclosure is shown. The device 605 may be an example of aspects of a UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 620. The device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0177] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to out-of-order handling without flow control feedback, etc.). The information may be passed to other components of the device 605. The receiver 610 may be a reference Fig. 9 Examples of various aspects of the transceiver 920 are described. The receiver 610 may utilize a single antenna or a collection of antennas.

[0178] The communication manager 615 may receive a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and decode or suppress decoding of the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0179] The communication manager 615 may also receive a DCI for scheduling downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; decode a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process; decode a second field in the DCI associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that the flow control feedback is disabled for the flow control feedback process based on the first field; and suppress transmission of flow control feedback for the downlink data transmission to the base station based on disabling the flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0180] The communication manager 615 may also receive a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; suppress reporting flow control feedback for the downlink data transmission based on disabling the flow control feedback for the downlink data transmission; receive a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission; and suppress decoding the second downlink data transmission based on the second downlink data transmission being received before the timing for reporting flow control feedback for the downlink data transmission to the base station.

[0181] The communication manager 615 may also receive DCI for scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identify timing for reporting flow control feedback for the downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission; and suppress reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0182] The communication manager 615 may also receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission; determine whether flow control feedback is disabled for the first downlink data transmission; decode the first downlink data transmission and decode or suppress decoding of the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0183] The communication manager 615 may also receive DCI scheduling downlink data transmission from a base station; identify a flow control feedback process associated with the downlink data transmission; determine to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and refrain from transmitting flow control feedback for the downlink data transmission to the base station based on the determination. The communication manager 615 may be an example of aspects of the communication manager 910 described herein.

[0184] The communication manager 615 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 615 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0185] The communication manager 615 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0186] The described techniques (such as those described with reference to the communication manager 615) can support efficient techniques for facilitating downlink data transmission and optional flow control feedback while avoiding confusion at the base station and the UE. In one example, when flow control feedback from a UE is disabled for downlink data transmission, the UE can still operate according to the timing for reporting flow control feedback for downlink data transmission. In this example, the UE may discard (e.g., suppress decoding) other downlink data transmissions based on the timing for reporting flow control feedback. In another example, when flow control feedback from a UE is disabled for downlink data transmission, other downlink data transmissions to the UE may be scheduled according to one or more rules to avoid confusion. Additionally, the wireless communication system may support a flow control feedback process associated with disabled flow control feedback so that the UE can be able to identify when to suppress reporting flow control feedback for downlink data transmission.

[0187] The transmitter 620 can transmit signals generated by other components of the device 605. In some examples, the transmitter 620 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 620 can be a reference Fig. 9 Examples of aspects of the transceiver 920 are described. The transmitter 620 may utilize a single antenna or a collection of antennas.

[0188] Figure 7 A block diagram 700 of a device 705 supporting out-of-order handling without flow control feedback according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of the device 605 or UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 745. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0189] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to out-of-order handling without flow control feedback, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig. 9 Examples of various aspects of the transceiver 920 are described. The receiver 710 may utilize a single antenna or a collection of antennas.

[0190] The communication manager 715 may be an example of aspects of the communication manager 615 as described herein. The communication manager 715 may include a DCI manager 720, a feedback timing manager 725, a feedback manager 730, a decoder 735, and a feedback process manager 740. The communication manager 715 may be an example of aspects of the communication manager 910 described herein.

[0191] The DCI manager 720 may receive a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process. The decoder 735 may decode or refrain from decoding the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0192] The DCI manager 720 may receive a DCI scheduling a downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback procedure. The decoder 735 may decode a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback procedure. The decoder 735 may decode a second field in the DCI associated with a flow control feedback procedure associated with the downlink data transmission, wherein decoding the second field indicates that the flow control feedback is disabled for the flow control feedback procedure based on the first field. The feedback manager 740 may suppress transmitting flow control feedback for the downlink data transmission to the base station based on disabling the flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback procedure being associated with the downlink data transmission.

[0193] The DCI manager 720 may receive a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. The feedback manager 730 may refrain from reporting flow control feedback for the downlink data transmission based on disabling the flow control feedback for the downlink data transmission. The DCI manager 720 may receive a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission. The feedback manager 730 may refrain from decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0194] The DCI manager 720 may receive DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. The feedback timing manager 725 may identify a timing for reporting flow control feedback for the downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission. The feedback manager 730 may refrain from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0195] The DCI manager 720 may receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission. The feedback manager 730 may determine whether flow control feedback is disabled for the first downlink data transmission. The decoder 735 may decode the first downlink data transmission and decode or refrain from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0196] The DCI manager 720 may receive DCI scheduling downlink data transmission from a base station. The feedback process manager 740 may identify a flow control feedback process associated with the downlink data transmission. The feedback manager 730 may determine to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and refrain from transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0197] The transmitter 745 can transmit signals generated by other components of the device 705. In some examples, the transmitter 745 can be co-located with the receiver 710 in a transceiver module. For example, the transmitter 745 can be a reference Fig. 9 Examples of various aspects of the transceiver 920 are described. The transmitter 745 may utilize a single antenna or a collection of antennas.

[0198] Figure 8 A block diagram 800 of a communication manager 805 supporting out-of-order handling without flow control feedback is shown in accordance with one or more aspects of the present disclosure. The communication manager 805 may be an example of aspects of the communication manager 615, the communication manager 715, or the communication manager 910 described herein. The communication manager 805 may include a DCI manager 810, a feedback timing manager 815, a feedback manager 820, a drop rule manager 825, a decoder 830, an RRC manager 835, and a feedback process manager 840. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0199] The DCI manager 810 may receive a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process. The decoder 830 may decode or refrain from decoding the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0200] The DCI manager 810 may receive a DCI scheduling a downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process. The decoder 830 may decode a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process. The decoder 830 may decode a second field in the DCI associated with a flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that the flow control feedback is disabled for the flow control feedback process based on the first field. The feedback manager 820 may suppress transmitting flow control feedback for the downlink data transmission to the base station based on disabling the flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0201] The DCI manager 810 may receive a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. The feedback manager 820 may refrain from reporting flow control feedback for the downlink data transmission based on disabling the flow control feedback for the downlink data transmission. The DCI manager 810 may receive a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission. The feedback manager 820 may refrain from decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0202] The DCI manager 810 may receive a DCI for scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. In some examples, the DCI manager 810 may receive a DCI for scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission being before the second downlink data transmission. In some examples, the DCI manager 810 may receive a DCI for scheduling downlink data transmission from a base station. In some examples, the DCI manager 810 may receive a second DCI for scheduling a second downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the first downlink data transmission. In some examples, the DCI manager 810 may receive a second DCI for scheduling a second downlink data transmission. In some examples, the DCI manager 810 may receive in the DCI an indication of timing for reporting flow control feedback for the downlink data transmission to the base station.

[0203] The feedback timing manager 815 may identify the timing for reporting flow control feedback for downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission. In some examples, the feedback timing manager 815 may select the timing for reporting flow control feedback to the base station from the timing set in the RRC signaling. In some cases, the selected timing is the maximum timing, the minimum timing, or the first timing in the timing set in the RRC signaling, or the selected timing in the timing set is indicated by another parameter. In some cases, the selected timing is based on the flow control feedback RTT configured in the RRC signaling. In some cases, the timing for reporting flow control feedback for the downlink data transmission to the base station is preconfigured at the UE. In some cases, the timing for reporting flow control feedback for the downlink data transmission to the base station is based on the subcarrier spacing configured for downlink data transmission.

[0204] The feedback manager 820 may refrain from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission. In some examples, the feedback manager 820 may determine whether to disable flow control feedback for the first downlink data transmission. In some examples, the feedback manager 820 may determine to disable flow control feedback for the downlink data transmission based on a flow control feedback process associated with the downlink data transmission. In some examples, the feedback manager 820 may refrain from transmitting flow control feedback for the downlink data transmission to the base station based on the determination. In some examples, the feedback manager 820 may determine to disable flow control feedback for the first downlink data transmission.

[0205] The decoder 830 may decode the first downlink data transmission. In some examples, the decoder 830 may decode or refrain from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission. In some examples, the decoder 830 may refrain from decoding the second downlink data transmission based on the determination. In some examples, the decoder 830 may decode or refrain from decoding the second downlink data transmission based on whether the second downlink data transmission is scheduled within or after a threshold amount of time after the first downlink data transmission. In some examples, the decoder 830 may refrain from decoding the second downlink data transmission based on the second downlink data transmission being scheduled within a threshold amount of time after the first downlink data transmission. In some examples, the decoder 830 may decode the second downlink data transmission based on the second downlink data transmission being scheduled after a threshold amount of time after the first downlink data transmission.

[0206] In some examples, the decoder 830 may decode the second downlink data transmission, regardless of when the second downlink data transmission is scheduled and regardless of the timing for reporting the flow control feedback for the second downlink data transmission. In some examples, the decoder 830 may decode the first field in the DCI indicating that the flow control feedback is disabled for the flow control feedback process. In some examples, the decoder 830 may decode the second field in the DCI indicating that the flow control feedback process associated with the downlink data transmission is disabled for the flow control feedback process based on the first field indication. In some cases, the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process or include the same transport block. In some cases, the first field includes a flow control field. In some cases, the second field includes a DAI or TPC field.

[0207] The feedback process manager 840 may identify a flow control feedback process associated with the downlink data transmission. The drop rule manager 825 may determine, based on the identified timing, that the second downlink data transmission is scheduled after the first downlink data transmission and before the flow control feedback for the first downlink data transmission. In some examples, the drop rule manager 825 may determine, based on the identified timing, that the second downlink data transmission is scheduled after the first downlink data transmission and that the flow control feedback for the second downlink data transmission is scheduled before the flow control feedback for the first downlink data transmission. In some examples, the drop rule manager 825 may determine that the second downlink data transmission is scheduled within a threshold amount of time after the first downlink data transmission.

[0208] In some examples, the discard rule manager 825 may determine that the second downlink data transmission is scheduled after a threshold amount of time after the first downlink data transmission. In some cases, the threshold amount of time is based on a parameter set for the first downlink data transmission, the second downlink data transmission, or both. The RRC manager 835 may receive a timing set in RRC signaling for reporting flow control feedback for the downlink data transmission to the base station. In some cases, the threshold amount of time is based at least in part on the following: the number of symbols for the first downlink data transmission, the number of symbols for the second downlink data transmission, the DMRS pattern associated with the first downlink data transmission, the DMRS pattern associated with the second downlink data transmission, or the processing capability of the UE, or a combination thereof. In some cases, the UE and the base station are operating in an NTN. The DCI manager 820 may receive DCI for scheduling the first downlink data transmission and the second downlink data transmission.

[0209] Fig. 9A diagram of a system 900 including a device 905 supporting out-of-order handling without flow control feedback according to one or more aspects of the present disclosure is shown. The device 905 may be an example of a device 605, a device 705, or a UE 115 as described herein or include components of these devices. The device 905 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 910, an I / O controller 915, a transceiver 920, an antenna 925, a memory 930, and a processor 940. These components may be in electronic communication via one or more buses (e.g., a bus 945).

[0210] The communication manager 910 may receive a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and decode or suppress decoding of the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0211] The communication manager 910 may also receive a DCI for scheduling downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; decode a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process; decode a second field in the DCI associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that the flow control feedback is disabled for the flow control feedback process based on the first field; and suppress transmission of flow control feedback for the downlink data transmission to the base station based on disabling the flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission.

[0212] The communication manager 910 may also receive a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; suppress reporting flow control feedback for the downlink data transmission based on disabling the flow control feedback for the downlink data transmission; receive a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission; and suppress decoding the second downlink data transmission based on the second downlink data transmission being received before the timing for reporting flow control feedback for the downlink data transmission to the base station.

[0213] The communication manager 910 may receive DCI for scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identify timing for reporting flow control feedback for the downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission; and suppress reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission.

[0214] The communication manager 910 may also receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission; determine whether flow control feedback is disabled for the first downlink data transmission; decode the first downlink data transmission; and decode or suppress decoding of the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission.

[0215] The communication manager 910 may also receive DCI for scheduling downlink data transmission from a base station; identify a flow control feedback process associated with the downlink data transmission; determine to disable flow control feedback for the downlink data transmission based on the flow control feedback process associated with the downlink data transmission; and suppress transmitting flow control feedback for the downlink data transmission to the base station based on the determination.

[0216] I / O controller 915 can manage input and output signals of device 905. I / O controller 915 can also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 915 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 915 can utilize an operating system, such as Or another known operating system. In other cases, I / O controller 915 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 915 may be implemented as part of a processor. In some cases, a user may interact with device 905 via I / O controller 915 or via hardware components controlled by I / O controller 915.

[0217] The transceiver 920 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 920 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 920 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0218] In some cases, a wireless device may include a single antenna 925. However, in some cases, the device may have more than one antenna 925, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0219] The memory 930 may include random access memory (RAM) and read-only memory (ROM). The memory 930 may store computer-readable, computer-executable code 935 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 930 may include, among other things, a basic input / output system (BIOS), which may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0220] The processor 940 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 930) to cause the device 905 to perform various functions (e.g., functions or tasks that support out-of-order handling without flow control feedback).

[0221] The code 935 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 935 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 935 may not be directly executed by the processor 940, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0222] Fig.10 A block diagram 1000 of a device 1005 supporting out-of-order handling without flow control feedback according to one or more aspects of the present disclosure is shown. The device 1005 may be an example of aspects of a base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1020. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0223] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to out-of-order handling without flow control feedback, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be a reference Fig.13 Examples of various aspects of the transceiver 1320 are described. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0224] The communication manager 1015 may transmit a first downlink data transmission and a second downlink data transmission to the UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and transmit the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0225] The communication manager 1015 may also transmit a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules the transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process; and transmit a second field in the DCI associated with the flow control feedback process associated with the downlink data.

[0226] The communication manager 1015 may also transmit to the UE a DCI scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of the timing for reporting flow control feedback for the downlink data transmission to the base station when the flow control feedback is disabled for the downlink data transmission.

[0227] The communication manager 1015 may also transmit to the UE a DCI scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of the timing for reporting flow control feedback for downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission.

[0228] The communication manager 1015 may also transmit a DCI for scheduling a first downlink data transmission to the UE; transmit a DCI for scheduling a second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission; identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; and determine whether flow control feedback is disabled for the first downlink data transmission.

[0229] The communication manager 1015 may also identify downlink data to be transmitted to the UE; determine to disable flow control feedback from the UE for the downlink data; identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination; and transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process. The communication manager 1015 may be an example of aspects of the communication manager 1310 described herein.

[0230] The communication manager 1015 or its subcomponents may be implemented in hardware, in code (e.g., software or firmware) executed by a processor, or any combination thereof. If implemented in code executed by a processor, the functions of the communication manager 1015 or its subcomponents may be performed by a general purpose processor, DSP, ASIC, FPGA or other programmable logic device designed to perform the functions described in this disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0231] The communication manager 1015 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0232] The described techniques (such as those described with reference to the communication manager 1015) can support efficient techniques for facilitating downlink data transmission and optional flow control feedback while avoiding confusion at the base station and the UE. In one example, when flow control feedback from a UE is disabled for downlink data transmission, the UE can still operate according to the timing for reporting flow control feedback for downlink data transmission. In this example, the UE may discard (e.g., suppress decoding) other downlink data transmissions based on the timing for reporting flow control feedback. In another example, when flow control feedback from a UE is disabled for downlink data transmission, other downlink data transmissions to the UE may be scheduled according to one or more rules to avoid confusion. Additionally, the wireless communication system may support a flow control feedback process associated with disabled flow control feedback so that the UE can be able to identify when to suppress reporting flow control feedback for downlink data transmission.

[0233] The transmitter 1020 may transmit signals generated by other components of the device 1005. In some examples, the transmitter 1020 may be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1020 may be a reference Fig.13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1020 may utilize a single antenna or a collection of antennas.

[0234] Fig.11 A block diagram 1100 of a device 1105 supporting out-of-order handling without flow control feedback according to one or more aspects of the present disclosure is shown. The device 1105 may be an example of aspects of the device 1005 or base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1145. The device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0235] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to out-of-order handling without flow control feedback, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.13 Examples of various aspects of transceiver 1320 are described. Receiver 1110 may utilize a single antenna or a collection of antennas.

[0236] The communication manager 1115 may be an example of aspects of the communication manager 1015 as described herein. The communication manager 1115 may include a DCI manager 1120, a feedback timing manager 1125, a data manager 1130, a feedback manager 1135, and a feedback process manager 1140. The communication manager 1115 may be an example of aspects of the communication manager 1310 described herein.

[0237] The DCI manager 1120 may transmit a first downlink data transmission and a second downlink data transmission to the UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process. The DCI manager 1120 may transmit the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0238] The DCI manager 1120 may transmit a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process. The DCI manager 1120 may transmit a second field in the DCI associated with a flow control feedback process associated with the downlink data.

[0239] The DCI manager 1120 may transmit to a UE a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. The feedback timing manager 1125 may transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if the flow control feedback is disabled for the downlink data transmission.

[0240] The DCI manager 1120 may transmit to a UE a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. The feedback timing manager 1125 may transmit to the UE an indication of timing for reporting flow control feedback for downlink data transmission to the base station if flow control feedback is disabled for downlink data transmission.

[0241] The DCI manager 1120 may transmit a DCI scheduling a first downlink data transmission to the UE. The data manager 1130 may identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission. The DCI manager 1120 may transmit a DCI scheduling a second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission. The feedback manager 1135 may determine whether flow control feedback is disabled for the first downlink data transmission.

[0242] The data manager 1130 may identify downlink data to be transmitted to the UE. The feedback manager 1135 may determine to disable flow control feedback from the UE for the downlink data. The feedback process manager 1140 may identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination. The DCI manager 1120 may transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0243] The transmitter 1145 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1145 may be co-located with the receiver 1110 in a transceiver module. Fig.13 Examples of various aspects of the transceiver 1320 are described. The transmitter 1145 may utilize a single antenna or a collection of antennas.

[0244] Fig.12 A block diagram 1200 of a communication manager 1205 that supports out-of-order handling without flow control feedback is shown in accordance with one or more aspects of the present disclosure. The communication manager 1205 may be an example of aspects of the communication manager 1015, the communication manager 1115, or the communication manager 1310 described herein. The communication manager 1205 may include a DCI manager 1210, a feedback timing manager 1215, an RRC manager 1220, a data manager 1225, a feedback manager 1230, and a feedback process manager 1235. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0245] The DCI manager 1210 may transmit a first downlink data transmission and a second downlink data transmission to the UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process. The DCI manager 1210 may transmit the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0246] The DCI manager 1210 may transmit a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process. The DCI manager 1210 may transmit a second field in the DCI associated with a flow control feedback process associated with the downlink data.

[0247] The DCI manager 1210 may transmit to a UE a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. The feedback timing manager 1215 may transmit to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if the flow control feedback is disabled for the downlink data transmission.

[0248] The DCI manager 1210 may transmit to the UE a DCI that schedules a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. In some examples, the DCI manager 1210 may transmit to the UE a DCI that schedules a first downlink data transmission. In some examples, the DCI manager 1210 may transmit to the UE a DCI that schedules a second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission. In some examples, the DCI manager 1210 may transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0249] In some examples, DCI manager 1210 may transmit in the DCI an indication of a timing for reporting flow control feedback for the downlink data transmission to the base station. In some examples, DCI manager 1210 may transmit a DCI that schedules a second downlink data transmission after a threshold amount of time after the first downlink data transmission based on disabling the flow control feedback for the first downlink data transmission. In some examples, DCI manager 1210 may transmit a DCI that schedules the second downlink data transmission regardless of when the first downlink data transmission is scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0250] In some examples, the DCI manager 1210 may transmit in the DCI a first field indicating that flow control feedback is disabled for the flow control feedback process. In some examples, the DCI manager 1210 may transmit in the DCI a second field indicating a flow control feedback process associated with the downlink data. In some cases, the first field includes a flow control field. In some cases, the second field includes a DAI or TPC field. The feedback timing manager 1215 may transmit to the UE an indication of the timing for reporting flow control feedback for downlink data transmission to the base station when flow control feedback is disabled for downlink data transmission. In some cases, the timing for reporting flow control feedback for the downlink data transmission to the base station is preconfigured at the base station. In some cases, the timing for reporting flow control feedback for the downlink data transmission to the base station is based on the subcarrier spacing configured for downlink data transmission.

[0251] The data manager 1225 may identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission. In some examples, the data manager 1225 may identify downlink data to be transmitted to the UE. In some cases, the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process or include the same transport block. The feedback manager 1230 may determine whether to disable flow control feedback for the first downlink data transmission. In some examples, the feedback manager 1230 may determine to disable flow control feedback from the UE for downlink data. In some examples, the feedback manager 1230 may determine to disable flow control feedback for the first downlink data transmission. The feedback process manager 1235 may identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination. The RRC manager 1220 may transmit a timing set for reporting flow control feedback for the downlink data transmission to the base station in RRC signaling. In some cases, the UE and the base station are operating in an NTN. The DCI manager 1210 may transmit a DCI that schedules the first downlink data transmission and the second downlink data transmission.

[0252] Fig.13 A diagram of a system 1300 including a device 1305 supporting out-of-order handling without flow control feedback according to one or more aspects of the present disclosure is shown. The device 1305 may be an example of a device 1005, a device 1105, or a base station 105 as described herein or include components of these devices. The device 1305 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 1310, a network communication manager 1315, a transceiver 1320, an antenna 1325, a memory 1330, a processor 1340, and an inter-station communication manager 1345. These components may be in electronic communication via one or more buses (e.g., bus 1350).

[0253] The communication manager 1310 may transmit a first downlink data transmission and a second downlink data transmission to the UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and transmit the second downlink data transmission based on disabling flow control feedback for the flow control feedback process.

[0254] The communication manager 1310 may also transmit a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process; and transmit a second field in the DCI associated with the flow control feedback process associated with the downlink data.

[0255] The communication manager 1310 may also transmit to the UE a DCI scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of the timing for reporting flow control feedback for the downlink data transmission to the base station when the flow control feedback is disabled for the downlink data transmission.

[0256] The communication manager 1310 may also transmit to the UE a DCI scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmit to the UE an indication of the timing for reporting flow control feedback for downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission.

[0257] The communication manager 1310 may also transmit a DCI for scheduling a first downlink data transmission to the UE; transmit a DCI for scheduling a second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission; identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; and determine whether flow control feedback is disabled for the first downlink data transmission.

[0258] The communication manager 1310 may also identify downlink data to be transmitted to the UE; determine that flow control feedback from the UE is to be disabled for the downlink data; identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination; and transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0259] The network communications manager 1315 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1315 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0260] The transceiver 1320 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1320 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1320 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0261] In some cases, a wireless device may include a single antenna 1325. However, in some cases, the device may have more than one antenna 1325, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0262] Memory 1330 may include RAM, ROM, or a combination thereof. Memory 1330 may store computer readable code 1335 including instructions that, when executed by a processor (e.g., processor 1340), cause the device to perform various functions described herein. In some cases, memory 1330 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0263] Processor 1340 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1340 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1340. Processor 1340 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1330) to cause device 1305 to perform various functions (e.g., functions or tasks that support out-of-order handling without flow control feedback).

[0264] The inter-site communication manager 1345 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1345 may coordinate the scheduling of transmissions to UE 115 for various interference mitigation techniques, such as beamforming or joint transmission. In some examples, the inter-site communication manager 1345 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0265] The code 1335 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1335 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1335 may not be directly executed by the processor 1340, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0266] Fig.14 A flow chart illustrating a method 1400 for supporting out-of-order handling without using flow control feedback according to aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE or components thereof as described with reference to Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0267] At 1405, the method may include receiving a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process. The operations of 1405 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0268] At 1410, the method may include decoding or refraining from decoding a second downlink data transmission based on disabling flow control feedback for the flow control feedback process. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Figures 6 to 9 The decoder described is executed.

[0269] Fig.15 A flow chart illustrating a method 1500 for supporting out-of-order handling without using flow control feedback according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a base station or components thereof as described herein. For example, the operations of the method 1500 may be implemented by a base station or components thereof as described with reference to Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0270] At 1505, the method may include transmitting a first downlink data transmission and a second downlink data transmission to the UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process. The operations of 1505 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0271] At 1510, the method may include transmitting a second downlink data transmission based on disabling flow control feedback for the flow control feedback process. The operations of 1510 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0272] Fig.16 A flow chart illustrating a method 1600 for supporting out-of-order handling without using flow control feedback according to various aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE or components thereof as described with reference to Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0273] At 1605, the method may include receiving a DCI scheduling a downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process. The operations of 1605 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1605 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0274] At 1610, the method may include decoding a first field in the DCI indicating that flow control feedback is disabled for the flow control feedback process. The operations of 1610 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1610 may be as described with reference to Figures 6 to 9 The decoder described is executed.

[0275] At 1615, the method may include decoding a second field in the DCI associated with a flow control feedback process associated with the downlink data transmission, wherein decoding the second field indicates that flow control feedback is disabled for the flow control feedback process based on the first field. The operations of 1615 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 6 to 9 The decoder described is executed.

[0276] At 1620, the method may include refraining from transmitting flow control feedback for the downlink data transmission to the base station based on disabling flow control feedback for the downlink data transmission, the flow control feedback being disabled based on the flow control feedback process being associated with the downlink data transmission. The operations of 1620 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1620 may be performed as described with reference to Figures 6 to 9 Described feedback manager to perform.

[0277] Fig.17 A flow chart illustrating a method 1700 for supporting out-of-order handling without using flow control feedback according to aspects of the present disclosure is shown. The operations of the method 1700 may be implemented by a base station or components thereof as described herein. For example, the operations of the method 1700 may be implemented by a base station or components thereof as described with reference to Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0278] At 1705, the method may include transmitting a first field in a DCI indicating that flow control feedback is disabled for a flow control feedback process, wherein the DCI schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process. The operations of 1705 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1705 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0279] At 1710, the method may include transmitting in the DCI a second field associated with a flow control feedback process associated with the downlink data. The operations of 1710 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1710 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0280] Fig.18 A flow chart illustrating a method 1800 for supporting out-of-order handling without using flow control feedback according to various aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a UE or components thereof as described herein. For example, the operations of the method 1800 may be implemented by a UE or components thereof as described with reference to Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0281] At 1805, the method may include receiving a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. The operations of 1805 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1805 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0282] At 1810, the method may include refraining from reporting flow control feedback for the downlink data transmission based on disabling flow control feedback for the downlink data transmission. The operations of 1810 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1810 may be performed as described with reference to Figures 6 to 9 Described feedback manager to perform.

[0283] At 1815, the method may include receiving a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the downlink data transmission. The operations of 1815 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1815 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0284] At 1820, the method may include refraining from decoding the second downlink data transmission based on the second downlink data transmission being received before a timing for reporting flow control feedback for the downlink data transmission to the base station. The operations of 1820 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1820 may be performed as described with reference to Figures 6 to 9 Described feedback manager to perform.

[0285] Fig.19 A flow chart illustrating a method 1900 for supporting out-of-order handling without using flow control feedback according to aspects of the present disclosure is shown. The operations of the method 1900 may be implemented by a base station or components thereof as described herein. For example, the operations of the method 1900 may be implemented by a base station or components thereof as described with reference to Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0286] At 1905, the method may include transmitting a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. The operations of 1905 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1905 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0287] At 1910, the method may include transmitting to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station if the flow control feedback is disabled for the downlink data transmission. The operations of 1910 may be performed according to examples disclosed herein. In some examples, aspects of the operations of 1910 may be performed as described with reference to Figures 10 to 13 The feedback timing manager described is implemented.

[0288] Fig. 20 1 is a flow chart illustrating a method 2000 for supporting out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure. The operations of the method 2000 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 2000 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0289] At 2005, the UE may receive DCI scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission. The operations of 2005 may be performed according to the methods described herein. In some examples, aspects of the operations of 2005 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0290] At 2010, the UE may identify a timing for reporting flow control feedback for downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission. The operations of 2010 may be performed according to the methods described herein. In some examples, aspects of the operations of 2010 may be performed as described with reference to Figures 6 to 9 The feedback timing manager described is implemented.

[0291] At 2015, the UE may refrain from reporting flow control feedback for downlink data transmission based on disabling flow control feedback for the downlink data transmission. The operations of 2015 may be performed according to the methods described herein. In some examples, aspects of the operations of 2015 may be performed as described with reference to Figures 6 to 9 Described feedback manager to perform.

[0292] Fig.21 A flow chart illustrating a method 2100 for supporting out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure is shown. The operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2100 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0293] At 2105, the base station may transmit to the UE a DCI scheduling a downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission. The operations of 2105 may be performed according to the methods described herein. In some examples, aspects of the operations of 2105 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0294] At 2110, the base station may transmit to the UE an indication of timing for reporting flow control feedback for downlink data transmission to the base station if flow control feedback is disabled for downlink data transmission. The operations of 2110 may be performed according to the methods described herein. In some examples, aspects of the operations of 2110 may be performed as described with reference to Figures 10 to 13 The feedback timing manager described is implemented.

[0295] Fig. 22 A flow chart illustrating a method 2200 for supporting out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure is shown. The operations of the method 2200 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 2200 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0296] At 2205, the UE may receive DCI scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission. The operations of 2205 may be performed according to the methods described herein. In some examples, aspects of the operations of 2205 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0297] At 2210, the UE may determine whether to disable flow control feedback for a first downlink data transmission. The operations of 2210 may be performed according to the methods described herein. In some examples, aspects of the operations of 2210 may be performed as described with reference to Figures 6 to 9 The described feedback manager is implemented.

[0298] At 2215, the UE may decode the first downlink data transmission. The operations of 2215 may be performed according to the methods described herein. In some examples, aspects of the operations of 2215 may be performed as described with reference to Figures 6 to 9 The decoder described is executed.

[0299] At 2220, the UE may decode or refrain from decoding the second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission. The operations of 2220 may be performed according to the methods described herein. In some examples, aspects of the operations of 2220 may be as described with reference to Figures 6 to 9 The decoder described is executed.

[0300] Fig.23 A flow chart illustrating a method 2300 for supporting out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure is shown. The operations of the method 2300 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2300 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0301] At 2305, the base station may transmit a DCI scheduling a first downlink data transmission to the UE. The operations of 2305 may be performed according to the methods described herein. In some examples, aspects of the operations of 2305 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0302] At 2310, the base station may identify a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission. The operations of 2310 may be performed according to the methods described herein. In some examples, aspects of the operations of 2310 may be performed as described with reference to Figures 10 to 13 Describes the data manager to perform.

[0303] At 2315, the base station may determine whether to disable flow control feedback for the first downlink data transmission. The operations of 2315 may be performed according to the methods described herein. In some examples, aspects of the operations of 2315 may be performed as described with reference to Figures 10 to 13 Described feedback manager to perform.

[0304] At 2320, the base station may transmit DCI scheduling a second downlink data transmission based on whether flow control feedback is disabled for the first downlink data transmission. The operations of 2320 may be performed according to the methods described herein. In some examples, aspects of the operations of 2320 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0305] Fig.24 A flow chart illustrating a method 2400 for supporting out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure is shown. The operations of the method 2400 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 2400 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the following functions. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the following functions.

[0306] At 2405, the UE may receive DCI scheduling downlink data transmission from a base station. The operations of 2405 may be performed according to the methods described herein. In some examples, aspects of the operations of 2405 may be performed as described with reference to Figures 6 to 9 The DCI manager described here is used to perform the above operations.

[0307] At 2410, the UE may identify a flow control feedback process associated with the downlink data transmission. The operations of 2410 may be performed according to the methods described herein. In some examples, aspects of the operations of 2410 may be performed as described with reference to Figures 6 to 9 Describes the feedback process manager to perform.

[0308] At 2415, the UE may determine to disable flow control feedback for the downlink data transmission based on a flow control feedback process associated with the downlink data transmission. The operations of 2415 may be performed according to the methods described herein. In some examples, aspects of the operations of 2415 may be performed as described with reference to Figures 6 to 9 The described feedback manager is implemented.

[0309] At 2420, the UE may refrain from transmitting flow control feedback for the downlink data transmission to the base station based on the determination. The operations of 2420 may be performed according to the methods described herein. In some examples, aspects of the operations of 2420 may be performed as described with reference to Figures 6 to 9 Described feedback manager to perform.

[0310] Fig.25 A flow chart illustrating a method 2500 for supporting out-of-order handling without using flow control feedback according to one or more aspects of the present disclosure is shown. The operations of the method 2500 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 2500 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0311] At 2505, the base station may identify downlink data to be transmitted to the UE. The operations of 2505 may be performed according to the methods described herein. In some examples, aspects of the operations of 2505 may be performed as described with reference to Figures 10 to 13 Describes the data manager to perform.

[0312] At 2510, the base station may determine to disable flow control feedback from the UE for the downlink data. The operations of 2510 may be performed according to the methods described herein. In some examples, aspects of the operations of 2510 may be as described with reference to Figures 10 to 13 Described feedback manager to perform.

[0313] At 2515, the base station may identify a flow control feedback process indicating that flow control feedback from the UE is disabled based on the determination. The operations of 2515 may be performed according to the methods described herein. In some examples, aspects of the operations of 2515 may be as described with reference to Figures 10 to 13 Describes the feedback process manager to perform.

[0314] At 2520, the base station may transmit a DCI that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process. The operations of 2520 may be performed according to the methods described herein. In some examples, aspects of the operations of 2520 may be performed as described with reference to Figures 10 to 13 The DCI manager described here is used to perform the above operations.

[0315] The following provides an overview of various examples of the present disclosure:

[0316] Aspect 1: A method for wireless communication at a UE, comprising: receiving a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and decoding or suppressing decoding of the second downlink data transmission based at least in part on disabling flow control feedback for the flow control feedback process.

[0317] Aspect 2: The method of aspect 1, further comprising: decoding or refraining from decoding the second downlink data transmission based at least in part on whether the second downlink data transmission is scheduled within or after a threshold amount of time after the first downlink data transmission.

[0318] Aspect 3: The method of aspect 2, further comprising: refraining from decoding the second downlink data transmission based at least in part on the second downlink data transmission being scheduled within a threshold amount of time after the first downlink data transmission.

[0319] Aspect 4: The method of any one of aspects 2 to 3, further comprising: decoding the second downlink data transmission based at least in part on the second downlink data transmission being scheduled after a threshold amount of time after the first downlink data transmission.

[0320] Aspect 5: The method according to any one of aspects 2 to 4, wherein the first downlink data transmission and the second downlink data transmission comprise the same transport block.

[0321] Aspect 6: The method of any one of aspects 2 to 5, wherein the threshold amount of time is based at least in part on a set of parameters for the first downlink data transmission, the second downlink data transmission, or both.

[0322] Aspect 7: A method as in any one of Aspects 2 to 6, wherein the threshold amount of time is based at least in part on: the number of code elements used for the first downlink data transmission, the number of code elements used for the second downlink data transmission, the demodulation reference signal mode associated with the first downlink data transmission, the demodulation reference signal mode associated with the second downlink data transmission, or the processing capability of the UE, or a combination thereof.

[0323] Aspect 8: The method of any one of Aspects 1 to 7, further comprising: decoding the second downlink data transmission regardless of when the second downlink data transmission is scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0324] Aspect 9: The method according to any one of aspects 1 to 8, wherein the UE and the base station are operating in a non-terrestrial network (NTN).

[0325] Aspect 10: The method according to any one of aspects 1 to 9, further comprising: receiving downlink control information scheduling the first downlink data transmission and the second downlink data transmission.

[0326] Aspect 11: A method for performing wireless communications at a base station, comprising: transmitting a first downlink data transmission and a second downlink data transmission to a UE, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process; and transmitting the second downlink data transmission based at least in part on disabling flow control feedback for the flow control feedback process.

[0327] Aspect 12: The method of Aspect 11 further includes: determining to disable flow control feedback for a first downlink data transmission; and transmitting downlink control information for scheduling a second downlink data transmission after a threshold amount of time after the first downlink data transmission based at least in part on disabling flow control feedback for the first downlink data transmission.

[0328] Aspect 13: The method of aspect 12, wherein the first downlink data transmission and the second downlink data transmission comprise the same transport block.

[0329] Aspect 14: A method as in any one of Aspects 11 to 13, further comprising: determining to disable flow control feedback for a first downlink data transmission; and transmitting downlink control information for scheduling a second downlink data transmission, regardless of when the first downlink data transmission is scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0330] Aspect 15: The method of any one of Aspects 11 to 14, wherein the UE and the base station are operating in a non-terrestrial network (NTN).

[0331] Aspect 16: The method of any one of aspects 11 to 15, further comprising: transmitting downlink control information scheduling the first downlink data transmission and the second downlink data transmission.

[0332] Aspect 17: A method for performing wireless communications at a UE, comprising: receiving downlink control information for scheduling downlink data transmission from a base station, the downlink data transmission being associated with a flow control feedback process; decoding a first field in the downlink control information indicating that flow control feedback is disabled for the flow control feedback process; decoding a second field in the downlink control information associated with the flow control feedback process associated with the downlink data transmission, wherein decoding the second field is at least partially based on the first field indicating that flow control feedback is disabled for the flow control feedback process; and suppressing transmission of flow control feedback for the downlink data transmission to the base station based at least partially on disabling flow control feedback for the downlink data transmission, the flow control feedback being disabled at least partially based on the flow control feedback process being associated with the downlink data transmission.

[0333] Aspect 18: The method of Aspect 17, wherein the first field comprises a flow control field.

[0334] Aspect 19: The method of any one of aspects 17 to 18, wherein the second field comprises a downlink assignment index or a transmit power control field.

[0335] Aspect 20: The method of any one of Aspects 17 to 19, wherein the UE and the base station are operating in a non-terrestrial network (NTN).

[0336] Aspect 21: A method for performing wireless communications at a base station, comprising: transmitting a first field in downlink control information indicating that flow control feedback is disabled for a flow control feedback process, wherein the downlink control information schedules transmission of downlink data and indicates that the downlink data is associated with the flow control feedback process; and transmitting a second field in the downlink control information associated with the flow control feedback process associated with the downlink data.

[0337] Aspect 22: The method of Aspect 21, wherein the first field comprises a flow control field.

[0338] Aspect 23: The method of any one of aspects 21 to 22, wherein the second field comprises a downlink assignment index or a transmit power control field.

[0339] Aspect 24: The method of any one of Aspects 21 to 23, wherein the UE and the base station are operating in a non-terrestrial network (NTN).

[0340] Aspect 25: A method for performing wireless communications at a UE, comprising: receiving a downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; suppressing reporting flow control feedback for the downlink data transmission based at least in part on disabling flow control feedback for the downlink data transmission; receiving a second downlink data transmission scheduled after the downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the first downlink data transmission; and suppressing decoding the second downlink data transmission based at least in part on the second downlink data transmission being received before the timing for reporting flow control feedback for the first downlink data transmission to the base station.

[0341] Aspect 26: As in the method of Aspect 25, the downlink data transmission is scheduled by downlink control information, the downlink control information includes first downlink control information, and the downlink data transmission includes first downlink data transmission, the method further including: receiving second downlink control information scheduling second downlink data transmission; determining that the second downlink data transmission is scheduled after the first downlink data transmission and flow control feedback for the second downlink data transmission is scheduled before flow control feedback for the first downlink data transmission; and suppressing decoding of the second downlink data transmission based at least in part on the determination.

[0342] Aspect 27: The method of any one of Aspects 25 to 26, further comprising: receiving, in downlink control information, an indication of timing for reporting flow control feedback for the downlink data transmission to the base station.

[0343] Aspect 28: The method of any one of Aspects 25 to 27, further comprising: receiving, in radio resource control signaling, a plurality of timings for reporting flow control feedback for the downlink data transmission to the base station.

[0344] Aspect 29: In the method of Aspect 28, identifying the timing comprises: selecting a timing for reporting flow control feedback to the base station from a plurality of timings in the radio resource control signaling.

[0345] Aspect 30: The method of aspect 29, wherein the selected timing is a maximum timing, a minimum timing, or a first timing among multiple timings in the radio resource control signaling, or the selected timing among the multiple timings is indicated by another parameter.

[0346] Aspect 31: The method of any one of aspects 29 to 30, wherein the selected timing is based at least in part on a flow control feedback round trip time configured in the radio resource control signaling.

[0347] Aspect 32: The method of any one of Aspects 25 to 31, wherein timing for reporting flow control feedback for the downlink data transmission to the base station is preconfigured at the UE.

[0348] Aspect 33: The method of aspect 32, wherein the timing for reporting flow control feedback for the downlink data transmission to the base station is based at least in part on the subcarrier spacing configured for the downlink data transmission.

[0349] Aspect 34: The method of any one of Aspects 25 to 33, wherein the UE and the base station are operating in a non-terrestrial network (NTN).

[0350] Aspect 35: The method as in any one of Aspects 25 to 34, further comprising: receiving downlink control information scheduling the downlink data transmission.

[0351] Aspect 36: A method for wireless communication at a base station, comprising: transmitting a downlink data transmission to a UE, wherein flow control feedback is disabled for the downlink data transmission; and transmitting to the UE an indication of timing for reporting flow control feedback for the downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission.

[0352] Aspect 37: According to the method of Aspect 36, transmitting the indication of the timing comprises: transmitting the indication of the timing for reporting flow control feedback for the downlink data transmission to the base station in the downlink control information.

[0353] Aspect 38: According to the method of any one of aspects 36 to 37, transmitting the indication of the timing comprises: transmitting a plurality of timings for reporting flow control feedback for the downlink data transmission to the base station in radio resource control signaling.

[0354] Aspect 39: The method of any one of aspects 36 to 38, wherein timing for reporting flow control feedback for the downlink data transmission to the base station is preconfigured at the base station.

[0355] Aspect 40: The method of aspect 39, wherein timing for reporting flow control feedback for the downlink data transmission to the base station is based at least in part on a subcarrier spacing configured for the downlink data transmission.

[0356] Aspect 41: The method of any one of Aspects 36 to 40, wherein the UE and the base station are operating in a non-terrestrial network (NTN).

[0357] Aspect 42: The method as in any one of Aspects 36 to 41, further comprising: transmitting downlink control information scheduling the downlink data transmission to the UE.

[0358] Aspect 43: An apparatus for wireless communication at a UE, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 1 to 10.

[0359] Aspect 44: An apparatus for wireless communication at a UE, comprising at least one means for performing the method of any one of aspects 1 to 10.

[0360] Aspect 45: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 1 to 10.

[0361] Aspect 46: An apparatus for wireless communication at a base station, comprising a processor; and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of Aspects 11 to 16.

[0362] Aspect 47: An apparatus for wireless communication at a base station, comprising at least one device for performing the method of any one of Aspects 11 to 16.

[0363] Aspect 48: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 11 to 16.

[0364] Aspect 49: An apparatus for wireless communication at a UE, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 17 to 20.

[0365] Aspect 50: An apparatus for wireless communication at a UE, comprising at least one means for performing the method of any one of aspects 17 to 20.

[0366] Aspect 51: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 17 to 20.

[0367] Aspect 52: An apparatus for wireless communication at a base station, comprising a processor; and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of Aspects 21 to 24.

[0368] Aspect 53: An apparatus for wireless communication at a base station, comprising at least one device for performing the method of any one of Aspects 21 to 24.

[0369] Aspect 54: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 21 to 24.

[0370] Aspect 55: An apparatus for wireless communication at a UE, comprising a processor and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of aspects 25 to 35.

[0371] Aspect 56: An apparatus for wireless communication at a UE, comprising at least one means for performing the method of any one of Aspects 25 to 35.

[0372] Aspect 57: A non-transitory computer-readable medium storing a code for wireless communication at a UE, the code comprising instructions executable by a processor to perform the method of any one of aspects 25 to 35.

[0373] Aspect 58: An apparatus for wireless communication at a base station, comprising a processor; and a memory coupled to the processor, the processor and the memory being configured to perform the method of any one of Aspects 36 to 42.

[0374] Aspect 59: An apparatus for wireless communication at a base station, comprising at least one device for performing the method of any one of Aspects 36 to 42.

[0375] Aspect 60: A non-transitory computer-readable medium storing code for wireless communication at a base station, the code comprising instructions executable by a processor to perform the method of any one of aspects 36 to 42.

[0376] Aspect 61: A method for performing wireless communications at a UE, comprising: receiving downlink control information for scheduling downlink data transmission from a base station, wherein flow control feedback is disabled for the downlink data transmission; identifying timing for reporting flow control feedback for the downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission; and suppressing reporting flow control feedback for the downlink data transmission based at least in part on disabling flow control feedback for the downlink data transmission.

[0377] Aspect 62: A method as in Aspect 61, wherein the downlink control information includes first downlink control information, and the downlink data transmission includes first downlink data transmission, the method further comprising: receiving second downlink control information for scheduling second downlink data transmission, the second downlink data transmission being associated with the same flow control feedback process as the first downlink data transmission; determining, at least in part based on the identified timing, that the second downlink data transmission is scheduled after the first downlink data transmission and before the flow control feedback for the first downlink data transmission; and suppressing decoding of the second downlink data transmission based at least in part on the determination.

[0378] Aspect 63: A method as in any one of Aspects 61 or 62, wherein the downlink control information includes first downlink control information, and the downlink data transmission includes first downlink data transmission, the method further comprising: receiving second downlink control information scheduling second downlink data transmission; determining, at least in part based on the identified timing, that the second downlink data transmission is scheduled after the first downlink data transmission and that flow control feedback for the second downlink data transmission is scheduled before flow control feedback for the first downlink data transmission; and suppressing decoding of the second downlink data transmission based at least in part on the determination.

[0379] Aspect 64: The method of any one of Aspects 61 to 63, further comprising: receiving in the downlink control information an indication of timing for reporting flow control feedback for the downlink data transmission to the base station.

[0380] Aspect 65: The method of any one of Aspects 61 to 64, further comprising: receiving, in radio resource control signaling, a plurality of timings for reporting flow control feedback for the downlink data transmission to the base station.

[0381] Aspect 66: The method of any one of Aspects 61 to 65, wherein identifying the timing comprises: selecting a timing for reporting flow control feedback to the base station from a plurality of timings in the radio resource control signaling.

[0382] Aspect 67: A method as in any one of Aspects 61 to 66, wherein the selected timing is a maximum timing, a minimum timing, or a first timing among multiple timings in the radio resource control signaling, or the selected timing among the multiple timings is indicated by another parameter.

[0383] Aspect 68: The method of any one of aspects 61 to 67, wherein the selected timing is based at least in part on a flow control feedback round trip time configured in the radio resource control signaling.

[0384] Aspect 69: The method of any one of aspects 61 to 68, wherein timing for reporting flow control feedback for the downlink data transmission to the base station is preconfigured at the UE.

[0385] Aspect 70: A method as in any one of Aspects 61 to 69, wherein the timing for reporting flow control feedback for the downlink data transmission to the base station is based at least in part on the subcarrier spacing configured for the downlink data transmission.

[0386] Aspect 71: The method of any one of Aspects 61 to 70, wherein the UE and the base station are operating in an NTN.

[0387] Aspect 72: A method for wireless communication at a base station, comprising: transmitting downlink control information to a UE for scheduling downlink data transmission to the UE, wherein flow control feedback is disabled for the downlink data transmission; and transmitting to the UE an indication of timing for reporting flow control feedback for downlink data transmission to the base station when flow control feedback is disabled for the downlink data transmission.

[0388] Aspect 73: The method of aspect 72, wherein transmitting an indication of the timing comprises transmitting, in the downlink control information, an indication of a timing for reporting flow control feedback for the downlink data transmission to the base station.

[0389] Aspect 74: The method of any one of Aspects 72 or 73, wherein transmitting an indication of the timing comprises: transmitting in radio resource control signaling a plurality of timings for reporting flow control feedback for the downlink data transmission to the base station.

[0390] Aspect 75: The method of any one of Aspects 72 to 74, wherein timing for reporting flow control feedback for the downlink data transmission to the base station is preconfigured at the base station.

[0391] Aspect 76: The method of any one of Aspects 72 to 75, wherein the timing for reporting flow control feedback for the downlink data transmission to the base station is based at least in part on the subcarrier spacing configured for the downlink data transmission.

[0392] Aspect 77: The method of any one of Aspects 72 to 76, wherein the UE and the base station are operating in an NTN.

[0393] Aspect 78: A method for performing wireless communications at a UE, comprising: receiving downlink control information scheduling a first downlink data transmission and a second downlink data transmission from a base station, the first downlink data transmission preceding the second downlink data transmission; determining whether flow control feedback is disabled for the first downlink data transmission; decoding the first downlink data transmission; and decoding or suppressing decoding of the second downlink data transmission based at least in part on whether flow control feedback is disabled for the first downlink data transmission.

[0394] Aspect 79: The method of Aspect 78 further includes: determining to disable flow control feedback for the first downlink data transmission; and decoding or suppressing decoding of the second downlink data transmission based at least in part on whether the second downlink data transmission is scheduled within or after a threshold amount of time after the first downlink data transmission.

[0395] Aspect 80: A method as in any of Aspects 78 or 79, further comprising: determining that a second downlink data transmission is scheduled within a threshold amount of time after a first downlink data transmission; and suppressing decoding of the second downlink data transmission based at least in part on the second downlink data transmission being scheduled within a threshold amount of time after the first downlink data transmission.

[0396] Aspect 81: A method as in any of Aspects 78 or 79, further comprising: determining that a second downlink data transmission is scheduled after a threshold amount of time after the first downlink data transmission; and decoding the second downlink data transmission based at least in part on the fact that the second downlink data transmission is scheduled after a threshold amount of time after the first downlink data transmission.

[0397] Aspect 82: The method of any one of Aspects 78 to 81, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process or comprise the same transport block.

[0398] Aspect 83: The method of any one of Aspects 78 to 82, wherein the threshold amount of time is based at least in part on a set of parameters for the first downlink data transmission, the second downlink data transmission, or both.

[0399] Aspect 84: A method as in any one of Aspects 78 to 83, further comprising: determining to disable flow control feedback for a first downlink data transmission; and decoding a second downlink data transmission, regardless of when the second downlink data transmission is scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0400] Aspect 85: The method of any one of Aspects 78 to 84, wherein the UE and the base station are operating in an NTN.

[0401] Aspect 86: A method for performing wireless communications at a base station, comprising: transmitting downlink control information for scheduling a first downlink data transmission to a UE; identifying a second downlink data transmission for the UE, the first downlink data transmission preceding the second downlink data transmission; determining whether to disable flow control feedback for the first downlink data transmission; and transmitting downlink control information for scheduling the second downlink data transmission based at least in part on whether flow control feedback is disabled for the first downlink data transmission.

[0402] Aspect 87: The method of Aspect 86 further includes: determining to disable flow control feedback for a first downlink data transmission; and transmitting downlink control information for scheduling a second downlink data transmission after a threshold amount of time after the first downlink data transmission based at least in part on disabling flow control feedback for the first downlink data transmission.

[0403] Aspect 88: The method of any of Aspects 86 or 87, wherein the first downlink data transmission and the second downlink data transmission are associated with the same flow control feedback process or comprise the same transport block.

[0404] Aspect 89: A method as in any one of Aspects 86 to 88, further comprising: determining to disable flow control feedback for a first downlink data transmission; and transmitting downlink control information for scheduling a second downlink data transmission, regardless of when the first downlink data transmission is scheduled and regardless of the timing for reporting flow control feedback for the second downlink data transmission.

[0405] Aspect 90: The method of any one of Aspects 86 to 89, wherein the UE and the base station are operating in an NTN.

[0406] Aspect 91: A method for performing wireless communications at a UE, comprising: receiving downlink control information for scheduling downlink data transmission from a base station; identifying a flow control feedback process associated with the downlink data transmission; determining to disable flow control feedback for the downlink data transmission based at least in part on the flow control feedback process associated with the downlink data transmission; and suppressing transmitting flow control feedback for the downlink data transmission to the base station based at least in part on the determination.

[0407] Aspect 92: A method as in Aspect 91, wherein identifying the flow control feedback process includes: decoding a first field in the downlink control information indicating that flow control feedback is disabled for the flow control feedback process; and decoding a second field in the downlink control information indicating a flow control feedback process associated with the downlink data transmission, wherein decoding the second field is based at least in part on the first field indicating that flow control feedback is disabled for the flow control feedback process.

[0408] Aspect 93: A method as in any of Aspects 91 or 92, wherein the first field comprises a flow control field.

[0409] Aspect 94: The method of any one of Aspects 91 to 93, wherein the second field comprises a downlink assignment index or a transmit power control field.

[0410] Aspect 95: The method of any one of Aspects 91 to 94, wherein the UE and the base station are operating in an NTN.

[0411] Aspect 96: A method for wireless communications at a base station, comprising: identifying downlink data to be transmitted to a UE; determining that flow control feedback from the UE is to be disabled for the downlink data; identifying a flow control feedback process indicating that flow control feedback from the UE is disabled based at least in part on the determination; and transmitting downlink control information that schedules transmission of the downlink data and indicates that the downlink data is associated with the identified flow control feedback process.

[0412] Aspect 97: A method as in Aspect 96, wherein transmitting downlink control information indicating that the downlink data is associated with an identified flow control feedback process includes: transmitting a first field in the downlink control information indicating that flow control feedback is disabled for the flow control feedback process; and transmitting a second field in the downlink control information indicating the flow control feedback process associated with the downlink data.

[0413] Aspect 98: A method as in any of Aspects 96 or 97, wherein the first field comprises a flow control field.

[0414] Aspect 99: The method of any one of Aspects 96 to 98, wherein the second field comprises a downlink assignment index or a transmit power control field.

[0415] Aspect 100: The method of any one of Aspects 96 to 99, wherein the UE and the base station are operating in an NTN.

[0416] Aspect 101: An apparatus for wireless communication, comprising at least one means for performing the method of any one of Aspects 61 to 71.

[0417] Aspect 102: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to perform the method of any one of aspects 61 to 71.

[0418] Aspect 103: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of Aspects 61 to 71.

[0419] Aspect 104: An apparatus for wireless communication, comprising at least one means for performing the method of any one of Aspects 72 to 77.

[0420] Aspect 105: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to perform the method of any one of aspects 72 to 77.

[0421] Aspect 106: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of Aspects 72 to 77.

[0422] Aspect 107: An apparatus for wireless communication, comprising at least one means for performing the method of any one of Aspects 78 to 85.

[0423] Aspect 108: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to perform the method of any one of aspects 78 to 85.

[0424] Aspect 109: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of Aspects 78 to 85.

[0425] Aspect 110: An apparatus for wireless communication, comprising at least one means for performing the method of any one of Aspects 86 to 90.

[0426] Aspect 111: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to perform the method of any one of aspects 86 to 90.

[0427] Aspect 112: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of Aspects 86 to 90.

[0428] Aspect 113: An apparatus for wireless communication, comprising at least one means for performing the method of any one of Aspects 91 to 95.

[0429] Aspect 114: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to perform the method of any one of aspects 91 to 95.

[0430] Aspect 115: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of Aspects 91 to 95.

[0431] Aspect 116: An apparatus for wireless communication, comprising at least one means for performing the method of any one of Aspects 96 to 100.

[0432] Aspect 117: An apparatus for wireless communication, comprising a processor and a memory coupled to the processor. The processor and the memory may be configured to cause the apparatus to perform the method of any one of aspects 96 to 100.

[0433] Aspect 118: A non-transitory computer-readable medium storing code for wireless communication, comprising: a processor; a memory coupled to the processor; and instructions stored in the memory and executable by the processor to cause the device to perform a method as in any one of Aspects 96 to 100.

[0434] It should be noted that the methods described herein describe possible implementations, and that the operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0435] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0436] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0437] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, an FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0438] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted by a computer-readable medium as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein may be implemented using software executed by a processor, hardware, firmware, hardwiring, or any combination thereof. Features that implement the functions may also be physically located in various locations, including being distributed so that parts of the functions are implemented at different physical locations.

[0439] Computer-readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer-readable medium can include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer-readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then this coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of computer-readable medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0440] As used herein (including in the claims), "or" used in a list of items (e.g., a list of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on."

[0441] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0442] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that may be implemented or that fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than other examples." This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0443] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the universal principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication at a user equipment (UE), comprising: identifying a threshold amount of time since receipt of a first downlink data transmission, the threshold amount of time used to report flow control feedback for the first downlink data transmission to a network device; receiving, from a network device, the first downlink data transmission and a second downlink data transmission, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with a same flow control feedback process; and Based at least in part on disabling the flow control feedback for the flow control feedback process: decoding the second downlink data transmission when the second downlink data transmission is scheduled after a threshold amount of time from receipt of the first downlink data transmission; as well as When the second downlink data transmission is scheduled within a threshold amount of time from receipt of the first downlink data transmission, decoding the second downlink data transmission is refrained from.

2. The method of claim 1, wherein the first downlink data transmission and the second downlink data transmission comprise the same transport block.

3. The method of claim 1, wherein the threshold amount of time is based at least in part on a set of parameters for the first downlink data transmission, the second downlink data transmission, or both.

4. The method of claim 1, wherein the threshold amount of time is based at least in part on: a number of symbols used for the first downlink data transmission, a number of symbols used for the second downlink data transmission, a demodulation reference signal pattern associated with the first downlink data transmission, a demodulation reference signal pattern associated with the second downlink data transmission, or a processing capability of the UE, or a combination thereof.

5. The method of claim 1, wherein the UE and the network device are operating in a non-terrestrial network (NTN).

6. The method of claim 1, further comprising: Downlink control information scheduling the first downlink data transmission and the second downlink data transmission is received.

7. The method of claim 1, wherein the threshold amount of time for reporting flow control feedback for the first downlink data transmission to the network device when the flow control feedback is disabled for the flow control feedback process is used to determine whether to decode or refrain from decoding the second downlink data transmission.

8. The method of claim 1, further comprising: receiving an indication to disable the flow control feedback for the flow control feedback process; as well as Based at least in part on the indication to disable the flow control feedback, determining to use the threshold amount of time for reporting flow control feedback for the first downlink data transmission to the network device to determine whether to decode or refrain from decoding the second downlink data transmission.

9. A method for wireless communication at a network device, comprising: identifying a threshold amount of time from a user equipment (UE) receiving a first downlink data transmission, the threshold amount of time for receiving flow control feedback from the UE for the first downlink data transmission; transmitting the first downlink data transmission to the UE; as well as Based at least in part on determining to disable the flow control feedback for the first downlink data transmission: determining a schedule for a second downlink data transmission based at least in part on the threshold amount of time; transmitting downlink control information scheduling the second downlink data transmission after the threshold amount of time; as well as The second downlink data transmission is transmitted based at least in part on the threshold amount of time.

10. The method of claim 9, wherein the first downlink data transmission and the second downlink data transmission comprise the same transport block.

11. The method of claim 9, wherein the UE and the network device are operating in a non-terrestrial network (NTN).

12. The method of claim 9, further comprising: The downlink control information scheduling the first downlink data transmission and the second downlink data transmission is transmitted.

13. The method of claim 9, wherein the threshold amount of time for receiving flow control feedback for the first downlink data transmission from the UE is used to determine whether to schedule the second downlink data transmission when the flow control feedback is disabled for the first downlink data transmission.

14. A method for wireless communication at a user equipment (UE), comprising: receiving, from a network device, downlink control information scheduling a downlink data transmission associated with a first flow control feedback process of a plurality of flow control feedback processes; decoding a first field in the downlink control information indicating disabling of flow control feedback for at least one flow control feedback process among the plurality of flow control feedback processes; decoding a second field in the downlink control information to determine that the at least one flow control feedback process for which flow control feedback is disabled includes the first flow control feedback process associated with the downlink data transmission based at least in part on the first field indicating that flow control feedback is disabled for the at least one flow control feedback process, wherein the second field includes a transmit power control field; and Transmitting flow control feedback for the downlink data transmission to the network device is suppressed based at least in part on disabling the flow control feedback for the first flow control feedback process associated with the downlink data transmission.

15. The method of claim 14, wherein the first field comprises a flow control field.

16. The method of claim 14, wherein the UE and the network equipment are operating in a non-terrestrial network (NTN).

17. A method for wireless communication at a network device, comprising: transmitting, in downlink control information to a user equipment (UE), a first field indicating disabling of flow control feedback for at least one flow control feedback process of a plurality of flow control feedback processes, wherein the downlink control information schedules transmission of downlink data and indicates that the downlink data is associated with a first flow control feedback process of the plurality of flow control feedback processes; as well as Based at least in part on the first field indicating that flow control feedback is disabled for the at least one flow control feedback process, a second field is transmitted in the downlink control information indicating that the first flow control feedback process associated with the downlink data is disabled, wherein the second field includes a transmit power control field.

18. The method of claim 17, wherein the first field comprises a flow control field.

19. The method of claim 17, wherein the UE and the network device are operating in a non-terrestrial network (NTN).

20. A method for wireless communication at a user equipment (UE), comprising: identifying a first timing since receipt of a first downlink data transmission, the first timing being used to report flow control feedback for the first downlink data transmission to a network device; receiving the first downlink data transmission from a network device, wherein the flow control feedback is disabled for the first downlink data transmission; refraining from reporting flow control feedback for the first downlink data transmission based at least in part on disabling flow control feedback for the first downlink data transmission; receiving a second downlink data transmission scheduled after the first downlink data transmission; as well as When the flow control feedback is disabled for the first downlink data transmission, decoding of the second downlink data transmission is suppressed when the second downlink data transmission is received before the first timing and a second timing for reporting the flow control feedback for the second downlink data transmission to the network device from the reception of the second downlink data transmission is before the first timing.

21. The method of claim 20, wherein the first downlink data transmission is scheduled by first downlink control information, and the second downlink data transmission is scheduled by second downlink control information.

22. The method of claim 20, further comprising: An indication of the first timing for reporting flow control feedback for the first downlink data transmission to the network device is received in downlink control information.

23. The method of claim 20, further comprising: A plurality of timings for reporting flow control feedback for the first downlink data transmission to the network device are received in radio resource control signaling.

24. The method of claim 23, further comprising: The first timing for reporting the flow control feedback for the first downlink data transmission to the network device is selected from the plurality of timings in the radio resource control signaling.

25. The method of claim 24, wherein the selected timing is a maximum timing, a minimum timing, or a first timing among the plurality of timings in the radio resource control signaling, or the selected timing among the plurality of timings is indicated by another parameter.

26. The method of claim 24, wherein the selected timing is based at least in part on a flow control feedback round trip time configured in the radio resource control signaling.

27. The method of claim 20, wherein the first timing for reporting flow control feedback for the first downlink data transmission to the network device is preconfigured at the UE.

28. The method of claim 27, wherein the first timing for reporting flow control feedback for the first downlink data transmission to the network device is based at least in part on a subcarrier spacing configured for the first downlink data transmission.

29. The method of claim 20, wherein the UE and the network equipment are operating in a non-terrestrial network (NTN).

30. The method of claim 20, further comprising: Downlink control information scheduling the first downlink data transmission is received.

31. The method of claim 20, further comprising: The second timing from receipt of the second downlink data transmission is identified, the second timing being used to report the flow control feedback for the second downlink data transmission to the network device.

32. A method for wireless communication at a network device, comprising: identifying a timing from when a user equipment (UE) receives a first downlink data transmission, the timing being used to report flow control feedback for the first downlink data transmission to a network device; transmitting the first downlink data transmission to the UE, wherein the flow control feedback is disabled for the first downlink data transmission; as well as When the flow control feedback is disabled for the first downlink data transmission: determining whether to schedule a second downlink data transmission for the UE based at least in part on the timing; as well as An indication of the timing for reporting the flow control feedback for the first downlink data transmission to the network device is transmitted to the UE.

33. The method of claim 32, transmitting the indication of the timing comprising: The indication of the timing for reporting the flow control feedback for the first downlink data transmission to the network device is transmitted in downlink control information.

34. The method of claim 32, transmitting the indication of the timing comprising: A plurality of timings for reporting the flow control feedback for the first downlink data transmission to the network device are transmitted in radio resource control signaling.

35. The method of claim 32, wherein the timing for reporting the flow control feedback for the first downlink data transmission to the network device is preconfigured at the network device.

36. The method of claim 35, wherein the timing for reporting the flow control feedback for the first downlink data transmission to the network device is based at least in part on a subcarrier spacing configured for the first downlink data transmission.

37. The method of claim 32, wherein the UE and the network equipment are operating in a non-terrestrial network (NTN).

38. The method of claim 32, further comprising: Downlink control information scheduling the first downlink data transmission is transmitted to the UE.

39. The method of claim 32, further comprising: An indication of a second timing since the UE received the second downlink data transmission is transmitted to the UE, the second timing being used to report the flow control feedback for the second downlink data transmission to the network device.

40. An apparatus for wireless communication at a user equipment (UE), comprising: processor; a memory coupled to the processor; as well as instructions stored in the memory and executable by the processor to cause the apparatus to: identifying a threshold amount of time since receipt of a first downlink data transmission, the threshold amount of time used to report flow control feedback for the first downlink data transmission to a network device; receiving, from a network device, the first downlink data transmission and a second downlink data transmission, the first downlink data transmission preceding the second downlink data transmission, wherein the first downlink data transmission and the second downlink data transmission are associated with a same flow control feedback process; and Based at least in part on disabling the flow control feedback for the flow control feedback process: decoding the second downlink data transmission when the second downlink data transmission is scheduled after the threshold amount of time from receipt of the first downlink data transmission; as well as When the second downlink data transmission is scheduled within the threshold amount of time from receipt of the first downlink data transmission, decoding the second downlink data transmission is refrained.

41. The apparatus of claim 40, wherein the first downlink data transmission and the second downlink data transmission comprise a same transport block.

42. An apparatus as described in claim 40, wherein when the flow control feedback is disabled for the flow control feedback process, the threshold amount of time for reporting flow control feedback for the first downlink data transmission to the network device is used to determine whether to decode or refrain from decoding the second downlink data transmission.

43. The apparatus of claim 40, wherein the instructions are further executable by the processor to cause the apparatus to: receiving an indication to disable the flow control feedback for the flow control feedback process; and Based at least in part on the indication to disable the flow control feedback, determining to use the threshold amount of time for reporting flow control feedback for the first downlink data transmission to the network device to determine whether to decode or refrain from decoding the second downlink data transmission.

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