Batch-based feedback in new radio

Abstract

Methods, systems, and devices for wireless communications are described. According to one or more aspects, a device (such as a user equipment (UE)) may receive downlink control information and may determine assignment information for processing batch-based feedback based on the downlink control information. The UE may determine batch-based feedback for a batch of downlink transmissions (e.g., transmissions associated with information packets) that are configured to be processed together by the UE. The UE may receive a downlink transmission from a base station and may construct a codebook based on the assignment information and the downlink transmission. In some examples, the UE may determine acknowledgment feedback for the downlink transmission based on the codebook. The UE may transmit the acknowledgment feedback to the base station.

Description

[0001] Cross-references

[0002] This patent application claims the benefit of U.S. Patent Application No. 62 / 881,666, filed by Chen et al. on August 1, 2019, entitled “Batch-Based Feedback in New Radio,” and U.S. Provisional Patent Application No. 16 / 928,201, filed by Chen et al. on July 14, 2020, entitled “Batch-Based Feedback in New Radio,” each of which is assigned to the assignee of this application and is expressly incorporated herein by reference in its entirety.

[0003] background

[0004] The following relates generally to wireless communications, and more particularly to batch-based feedback in New Radio (NR).

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. 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, which may be referred to as NR systems. These systems may employ 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).

[0006] A wireless multiple access communication system may include several base stations or network access nodes, each of which simultaneously supports communication for multiple communication devices, which may be further referred to as user equipment (UE). Some wireless communication systems (e.g., NR systems) may support high throughput and low latency communications. However, some techniques for supporting high throughput and low latency communications may have defects in some implementations.

[0007] Overview

[0008] The described techniques relate to improved methods, systems, devices, and apparatuses for supporting batch-based feedback in new radio (NR). In general, the described techniques provide for enhancing the reliability of communication links in NR systems. According to one or more aspects of the present disclosure, batch-based feedback may be provided, wherein a user equipment (UE) may transmit acknowledgement feedback (e.g., hybrid automatic repeat request (HARQ) feedback) for a batch of downlink transmissions to a base station. In some examples, the batch of downlink transmissions may include downlink transmissions (e.g., including packetized downlink transmissions) that may be configured to be processed together (e.g., as a unit, as a batch, as a group) by an application associated with the UE. In some cases, the UE (e.g., a first device) may determine assignment information (such as a counter or a total or both) associated with at least some downlink transmissions in the case of each downlink transmission in the batch of downlink transmissions that is not configured to be processed together. In some cases, the UE may receive a downlink transmission from a base station (e.g., a second device). Upon receiving at least one downlink transmission, the UE may construct a codebook based on the determined assignment information (e.g., a counter value and a total value). The UE may then transmit batch-based acknowledgement feedback based on the codebook.

[0009] A method of wireless communication at a first device is described. The method may include: determining assignment information for processing batch-based feedback for a batch of downlink transmissions, the batch of downlink transmissions being configured to be processed together by the first device; receiving a downlink transmission from the batch of downlink transmissions from a second device; constructing a codebook associated with processing the batch-based feedback based on the assignment information and the downlink transmission; determining acknowledgment feedback for the downlink transmission based on the codebook; and transmitting the acknowledgment feedback to the second device.

[0010] An apparatus for wireless communication at a first device is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device; receive a downlink transmission from the batch of downlink transmissions from a second device; construct a codebook associated with processing the batch-based feedback based on the assignment information and the downlink transmission; determine acknowledgment feedback for the downlink transmission based on the codebook; and transmit the acknowledgment feedback to the second device.

[0011] Another apparatus for wireless communication at a first device is described. The apparatus may include means for determining assignment information for processing batch-based feedback for a batch of downlink transmissions configured to be processed together by the first device; receiving a downlink transmission from the batch of downlink transmissions from a second device; constructing a codebook associated with processing the batch-based feedback based on the assignment information and the downlink transmission; determining acknowledgment feedback for the downlink transmission based on the codebook; and transmitting the acknowledgment feedback to the second device.

[0012] A non-transitory computer-readable medium storing code for wireless communication at a first device is described. The code may include instructions executable by a processor for the following operations: determining assignment information for processing batch-based feedback for a batch of downlink transmissions, the batch of downlink transmissions configured to be processed together by the first device; receiving a downlink transmission from the batch of downlink transmissions from a second device; constructing a codebook associated with processing batch-based feedback based on the assignment information and the downlink transmission; determining acknowledgment feedback for the downlink transmission based on the codebook; and transmitting the acknowledgment feedback to the second device.

[0013] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the assignment information for processing batch-based feedback includes a batch assignment index counter, a total batch assignment index, or both.

[0014] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, determining the assignment information may include operations, features, apparatus, or instructions for the following actions: receiving downlink control information from a second device; and determining a batch assignment index counter based on receiving the downlink control information, wherein constructing the codebook may be based on determining the batch assignment index counter.

[0015] Some examples of the methods, devices (equipment) and non-transitory computer-readable media described herein may further include operations, features, devices or instructions for the following actions: identifying a bit width associated with a batch assignment index counter based on receiving downlink control information; and determining a mapping between an index associated with a downlink transmission and a bit width value associated with the batch assignment index counter, wherein constructing a codebook may be based on determining the mapping.

[0016] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, determining a mapping may further include operations, features, apparatus, or instructions for determining that a first index associated with a first downlink transmission and a second index associated with a second downlink transmission may be mapped to the same bit width value, wherein constructing a codebook may be based on determining the mapping.

[0017] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the bit width associated with the batch assignment index counter may be based on a format associated with the downlink control information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the format associated with the downlink control information includes fallback downlink control information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the fallback downlink control information includes a single bit.

[0018] In some examples of the methods, apparatuses (equipment), and non-transient computer-readable media described herein, the format associated with the downlink control information includes non-fallback downlink control information. In some examples of the methods, apparatuses (equipment), and non-transient computer-readable media described herein, the non-fallback downlink control information includes two bits.

[0019] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, determining the assignment information may further include operations, features, apparatus, or instructions for the following actions: receiving downlink control information from a second device, the downlink control information indicating the total number of downlink transmissions included in the batch of downlink transmissions, and identifying a total batch assignment index based on receiving the downlink control information, wherein constructing the codebook may be based on identifying the total batch assignment index.

[0020] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: identifying a bit width associated with a total batch assignment index based on receiving downlink control information, wherein constructing a codebook may be based on identifying a bit width associated with the total batch assignment index.

[0021] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the bit width associated with the total batch assignment index may be the same as the number of bits associated with uniquely identifying each downlink transmission in the total number of downlink transmissions.

[0022] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, a bit width associated with the total batch assignment index may be less than the number of bits associated with uniquely identifying each of the total number of downlink transmissions.

[0023] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: receiving a second downlink transmission from a second device, and determining based on the assignment information that the second downlink transmission may not be included in the batch of downlink transmissions that can be configured to be processed together by the first device, wherein constructing a codebook associated with processing batch-based feedback may be based on the determination.

[0024] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, the assignment information includes an entry in a batch assignment index counter indicating that the second downlink transmission may not be included in the batch of downlink transmissions.

[0025] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: determining second assignment information for processing batch-based feedback for a second batch of downlink transmissions, receiving a second downlink transmission from a second device, and determining based on the second assignment information that the second downlink transmission may be included in the second batch of downlink transmissions that may be configured to be processed together by the first device, wherein constructing a codebook associated with processing batch-based feedback may be based on determining that the second downlink transmission may be included in the second batch of downlink transmissions.

[0026] Some examples of the methods, apparatuses, and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: determining that the first device can be configured to process batch-based transmissions based on determining assignment information for processing batch-based feedback, wherein constructing a codebook associated with processing batch-based feedback can be based on the determination.

[0027] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, assignment information for processing batch-based feedback may be configured for each first device associated with a second device, or each component carrier associated with a first device, or a combination thereof.

[0028] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: determining second assignment information for non-batch-based feedback for a second batch of downlink transmissions, wherein the non-batch-based feedback includes code block group-based feedback, non-group-based feedback, or a combination thereof; receiving a second downlink transmission from the second batch of downlink transmissions from a second device; and constructing a second codebook associated with the non-batch-based feedback based on the second assignment information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the second assignment information for non-batch-based feedback includes assignment information for processing batch-based feedback.

[0029] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for determining that a code block group may be enabled for a first component carrier associated with the batch of downlink transmissions, while a code block group may be disabled for a second component carrier associated with the batch of downlink transmissions, wherein constructing a codebook associated with processing batch-based feedback may be based on determining that a code block group may be enabled for the first component carrier associated with the batch of downlink transmissions, while a code block group may be disabled for the second component carrier associated with the batch of downlink transmissions.

[0030] Some examples of the methods, apparatus (equipment) and non-transitory computer-readable media described herein may further include operations, features, apparatus or instructions for the following actions: receiving a second downlink transmission from the batch of downlink transmissions from a second device, and determining a second acknowledgment feedback for the second downlink transmission, wherein transmitting the acknowledgment feedback further includes transmitting the second acknowledgment feedback.

[0031] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for receiving a second downlink transmission from the batch of downlink transmissions from a second device, and transmitting negative acknowledgment feedback indicating negative acknowledgment feedback for at least one downlink transmission in the batch of downlink transmissions.

[0032] Some examples of the methods, apparatus (equipment) and non-transitory computer-readable media described herein may further include operations, features, apparatus or instructions for the following actions: receiving downlink control information from a second device; determining a batch index based on receiving the downlink control information; and determining second assignment information for processing batch-based feedback for a second batch of downlink transmissions based on the batch index, wherein the batch of downlink transmissions and the second batch of downlink transmissions may at least partially overlap in time.

[0033] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the batch index may be included in an information field in the downlink control information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, determining the batch index may further include operations, features, means, or instructions for the following actions: determining the batch index based on two or more information fields in the downlink control information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the batch index includes an explicit batch index indicating the batch of downlink transmissions and the second batch of downlink transmissions.

[0034] A method of wireless communication at a second device is described. The method may include: determining assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by a first device; transmitting the assignment information and a downlink transmission from the batch of downlink transmissions to the first device; and receiving acknowledgment feedback for the transmitted downlink transmission from the first device, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0035] An apparatus for wireless communication at a second device is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. The instructions are executable by the processor to cause the apparatus to: determine assignment information for processing batch-based feedback for a batch of downlink transmissions configured to be processed together by a first device; transmit the assignment information and a downlink transmission from the batch of downlink transmissions to the first device; and receive acknowledgment feedback for the transmitted downlink transmission from the first device, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0036] Another apparatus for wireless communication at a second device is described. The apparatus may include means for determining assignment information for processing batch-based feedback for a batch of downlink transmissions configured to be processed together by a first device; transmitting the assignment information and a downlink transmission from the batch of downlink transmissions to the first device; and receiving acknowledgment feedback for the transmitted downlink transmission from the first device, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0037] A non-transitory computer-readable medium storing code for wireless communication at a second device is described. The code may include instructions executable by a processor for: determining assignment information for processing batch-based feedback for a batch of downlink transmissions configured to be processed together by a first device; transmitting the assignment information and a downlink transmission from the batch of downlink transmissions to the first device; and receiving acknowledgment feedback for the transmitted downlink transmission from the first device, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0038] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the assignment information for processing batch-based feedback includes a batch assignment index counter, a total batch assignment index, or both. Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: transmitting downlink control information to a first device, wherein the batch assignment index counter may be included in the downlink control information, and wherein the codebook may be based on the batch assignment index counter.

[0039] Some examples of the methods, devices (equipment) and non-transitory computer-readable media described herein may further include operations, features, devices or instructions for the following actions: identifying a bit width associated with a batch assignment index counter based on receiving downlink control information; and determining a mapping between an index associated with a downlink transmission and a bit width value associated with the batch assignment index counter, wherein a codebook may be based on the mapping.

[0040] In some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein, determining a mapping may further include operations, features, apparatus, or instructions for determining that a first index associated with a first downlink transmission and a second index associated with a second downlink transmission can be mapped to the same bit width value, wherein the codebook may be based on the determination.

[0041] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the bit width associated with the batch assignment index counter may be based on a format associated with downlink control information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the format associated with the downlink control information includes fallback downlink control information.

[0042] In some examples of the methods, apparatuses (equipment), and non-transient computer-readable media described herein, the fallback downlink control information includes a single bit. In some examples of the methods, apparatuses (equipment), and non-transient computer-readable media described herein, the format associated with the downlink control information includes non-fallback downlink control information. In some examples of the methods, apparatuses (equipment), and non-transient computer-readable media described herein, the non-fallback downlink control information includes two bits.

[0043] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: transmitting downlink control information to the first device, the downlink control information indicating the total number of downlink transmissions included in the batch of downlink transmissions, wherein a total batch assignment index may be included in the downlink control information, and wherein the codebook may be based on identifying the total batch assignment index.

[0044] Some examples of the methods, apparatus (equipment), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: identifying a bit width associated with a total batch assignment index based on transmitting downlink control information, wherein the codebook may be based on the bit width associated with the total batch assignment index.

[0045] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the bit width associated with the total batch assignment index may be the same as the number of bits associated with uniquely identifying each of the total number of downlink transmissions. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the bit width associated with the total batch assignment index may be less than the number of bits associated with uniquely identifying each of the total number of downlink transmissions.

[0046] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: transmitting a second downlink transmission to the first device, wherein the second downlink transmission may not be included in the batch of downlink transmissions that may be configured to be processed together by the first device. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the assignment information includes an entry in a batch assignment index counter indicating that the second downlink transmission may not be included in the batch of downlink transmissions.

[0047] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: determining second assignment information for processing batch-based feedback for a second batch of downlink transmissions, and transmitting the second assignment information and the second batch of downlink transmissions to the first device. Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: determining that the first device may be configured to process batch-based transmissions based on determining the assignment information for processing batch-based feedback, wherein transmitting the assignment information may be based on the determination.

[0048] Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: configuring assignment information for processing batch-based feedback for each first device associated with a second device, or each component carrier associated with a first device, or a combination thereof. Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, devices, or instructions for the following actions: determining a batch index associated with one or more downlink transmissions, and transmitting downlink control information indicating a batch index to a first device, the batch index including second assignment information for processing batch-based feedback for a second batch of downlink transmissions, wherein the batch of downlink transmissions and the second batch of downlink transmissions may overlap at least partially in time.

[0049] In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the batch index may be included in an information field in the downlink control information. In some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein, the batch index includes an explicit batch index indicating the batch of downlink transmissions and the second batch of downlink transmissions. Some examples of the methods, apparatuses (equipment), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for the following actions: determining that the batch of downlink transmissions and the second batch of downlink transmissions may be interleaved in time; and suppressing transmission of the second batch of downlink transmissions based on the determination. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 An example of a wireless communication system supporting batch-based feedback in New Radio (NR) in accordance with aspects of the present disclosure is illustrated.

[0052] Figure 2 An example of a wireless communication system supporting batch-based feedback in NR in accordance with aspects of the present disclosure is illustrated.

[0053] Figure 3 An example of a traffic flow supporting batch-based feedback in NR according to aspects of the present disclosure is illustrated.

[0054] Figure 4 An example of a mapping to support batch-based feedback in NR is illustrated in accordance with aspects of the present disclosure.

[0055] Figure 5 An example of a process flow supporting batch-based feedback in NR according to aspects of the present disclosure is illustrated.

[0056] Figure 6 and 7 A block diagram of an apparatus supporting batch-based feedback in NR according to aspects of the present disclosure is shown.

[0057] Figure 8 A block diagram of a communication manager supporting batch-based feedback in NR is shown in accordance with aspects of the present disclosure.

[0058] Fig. 9 A diagram of a system including a device supporting batch-based feedback in NR according to aspects of the present disclosure is shown.

[0059] Fig.10 and 11 A block diagram of an apparatus supporting batch-based feedback in NR according to aspects of the present disclosure is shown.

[0060] Fig.12 A block diagram of a communication manager supporting batch-based feedback in NR is shown in accordance with aspects of the present disclosure.

[0061] Fig.13 A diagram of a system including a device supporting batch-based feedback in NR according to aspects of the present disclosure is shown.

[0062] Figures 14 to 16 A flow chart illustrating a method for supporting batch-based feedback in NR according to aspects of the present disclosure is shown.

[0063] Detailed Description

[0064] A user equipment (UE) in a wireless communication system (such as a new radio (NR) system or a long term evolution (LTE) system) may support applications associated with high throughput and low latency. The various aspects described in the present disclosure relate to improved methods, systems, devices, or apparatuses that facilitate batch-based feedback (such as batch-based hybrid automatic repeat request (HARQ) acknowledgment / negative acknowledgment (ACK / NACK) feedback) for transmission or retransmission. In some examples, the techniques described herein enable assignment information for providing batch-based acknowledgment for one or more batches of downlink transmissions. In some implementations, a batch of downlink transmissions may include downlink transmissions configured to be processed together by a UE. According to one or more aspects of the present disclosure, a wireless communication system may be configured to group data packets into batches, such as batches associated with downlink transmissions. In one example, the wireless communication system may group data packets based on a deadline associated with each data packet in the data packet group. In some cases, a UE (e.g., a first device) in a wireless communication system may be configured to receive downlink control information from a base station (e.g., a second device). The base station may indicate the assignment information in the downlink control information. For example, the assignment information for processing batch-based feedback may include a batch assignment index counter, a total batch assignment index, or both.Upon receiving the downlink control information, the UE may determine the assignment information for processing batch-based feedback for a batch of downlink transmissions.

[0065] In some cases, the UE may receive a downlink transmission from the batch of downlink transmissions (e.g., a packet from the identified group). The UE may construct a codebook based on a batch assignment index counter, or a total batch assignment index, or both. In some implementations, the codebook may be associated with processing batch-based feedback. The UE may determine an acknowledgment feedback for the downlink transmission based on the codebook, and transmit the acknowledgment feedback to the base station.

[0066] Various aspects of the present disclosure are initially described in the context of a wireless communication system. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to batch-based feedback in NR.

[0067] Figure 1 An example of a wireless communication system 100 supporting batch-based feedback in NR according to various aspects of the present disclosure is illustrated. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 can be a long term evolution (LTE) network, an advanced LTE (LTE-A) network, an LTE-A Pro network, or an NR network. In some cases, the wireless communication system 100 can support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, or communication with low-cost and low-complexity devices.

[0068] The base station 105 may communicate wirelessly with the UE 115 via one or more base station antennas. The base station 105 described herein may include or may be referred to by those skilled in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a Node B, an evolved Node B (eNB), a next generation Node B, or a Gigabit Node B (any of which may be referred to as a gNB), a Home Node B, a Home Evolved Node B, or some other suitable terminology. The wireless communication system 100 may include different types of base stations 105 (e.g., macro cell base stations or small cell base stations). The UE 115 described herein may be able to communicate with various types of base stations 105 and network equipment (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

[0069] Each base station 105 may be associated with a particular geographic coverage area 110 in which it supports communications with various UEs 115. Each base station 105 may provide communications coverage for a respective geographic coverage area 110 via a communications link 125, and the communications link 125 between the base station 105 and the UE 115 may utilize one or more carriers. The communications link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. Downlink transmissions may also be referred to as forward link transmissions, and uplink transmissions may also be referred to as reverse link transmissions.

[0070] The geographic coverage area 110 of the base station 105 may be divided into sectors that constitute a portion of the geographic coverage area 110, and each sector may be associated with a cellular cell. For example, each base station 105 may provide communication coverage for a macrocellular cell, a small cellular cell, a hotspot, or other types of cellular cells, or various combinations thereof. In some examples, the base station 105 may be mobile and therefore provide communication coverage for a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and the overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or different base stations 105. The wireless communication system 100 may include, for example, a heterogeneous LTE / LTE-A / LTE-A Pro or NR network, in which different types of base stations 105 provide coverage for various geographic coverage areas 110.

[0071] The term "cell" refers to a logical communication entity used to communicate with base station 105 (e.g., on a carrier), and may be associated with an identifier to distinguish adjacent cells operating via the same or different carriers (e.g., physical cell identifier (PCID), virtual cell identifier (VCID)). In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types that may provide access to different types of devices (e.g., machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile broadband (eMBB), or others). In some cases, the term "cell" may refer to a portion (e.g., a sector) of a geographic coverage area 110 on which the logical entity operates.

[0072] Each UE 115 can be dispersed throughout the wireless communication system 100, and each UE 115 can be stationary or mobile. UE 115 can also 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, wherein "device" can also be referred to as a unit, a station, a terminal, or a client. UE 115 can also be 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 can also refer to a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or an MTC device, etc., which can be implemented in various items (such as electrical appliances, vehicles, meters, etc.).

[0073] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communications from devices that integrate sensors or meters to measure or capture information and relay the information to a central server or application, which may utilize the information or present the information to a person interacting with the program or application. Some UEs 115 may be designed to collect information or implement automated behavior of machines. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging.

[0074] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving "deep sleep" mode when not engaged in active communications, or operating over a limited bandwidth (e.g., in accordance with narrowband communications). In some cases, UE 115 may be designed to support critical functions (e.g., mission critical functions), and the wireless communication system 100 may be configured to provide ultra-reliable communications for these functions.

[0075] In some cases, UE 115 may also be able to communicate directly with other UE 115 (e.g., using a peer-to-peer (P2P) or device-to-device (D2D) protocol). One or more UEs in a group of UEs 115 utilizing D2D communication may be within the geographic coverage area 110 of the base station 105. Other UEs 115 in this 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 cases, each group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, in which each UE 115 transmits to each other UE 115 in the group. In some cases, 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.

[0076] The base stations 105 may communicate with the core network 130 and with each other. For example, the base stations 105 may interface with the core network 130 via a backhaul link 132 (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) on a backhaul link 134 (e.g., via X2, Xn, or other interfaces).

[0077] 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), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may manage non-access layer (e.g., control plane) functions such as mobility, authentication, and bearer management of UEs 115 served by base stations 105 associated with the EPC. User IP packets may be delivered through the S-GW, which itself may be connected to the P-GW. The P-GW may provide IP address allocation and other functions. The P-GW may be connected to network operator IP services. Operator IP services may include access to the Internet, an intranet, an IP multimedia subsystem (IMS), or packet switched (PS) streaming services.

[0078] At least some network devices (such as base stations 105) may include subcomponents, such as access network entities, which may be examples of access node controllers (ANCs). Each access network entity may communicate with each UE 115 through a number of other access network transport entities, which may be referred to as radio heads, smart radio heads, or transmission / reception points (TRPs). In some configurations, the various functions of each access network entity or base station 105 may be distributed across various network devices (e.g., radio heads and access network controllers) or merged into a single network device (e.g., base station 105).

[0079] The wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the 300 MHz to 3 GHz region is 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 can be blocked or redirected by buildings and environmental features. However, these waves can penetrate various structures sufficiently for macro cells to provide services to UEs 115 located indoors. Transmission of UHF waves can be associated with smaller antennas and shorter ranges (e.g., less than 100 km) compared to transmission using lower frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portion of the spectrum below 300 MHz.

[0080] The wireless communication system 100 may also operate in the Super High Frequency (SHF) region using frequency bands from 3 GHz to 30 GHz, also known as centimeter bands. The SHF region includes frequency bands that may be opportunistically used by devices that may be able to tolerate interference from other users, such as the 5 GHz Industrial, Scientific, and Medical (ISM) band.

[0081] The wireless communication system 100 may also operate in the extremely high frequency (EHF) division of the spectrum (e.g., from 30 GHz to 300 GHz), which is also referred to as the millimeter band. In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between the UE 115 and the base station 105, and the EHF antenna of the corresponding device may be even smaller and more closely spaced than the UHF antenna. In some cases, this may facilitate the use of antenna arrays within the UE 115. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency divisions, and the use of frequency bands specified across these frequency divisions may differ by country or regulatory agency.

[0082] In some cases, the wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ license assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as a 5 GHz ISM band). When operating in an unlicensed radio frequency spectrum band, wireless devices (such as base stations 105 and UE 115) may employ a listen-before-talk (LBT) procedure to ensure that the frequency channel is clear before transmitting data. In some cases, operations in unlicensed bands may be based on carrier aggregation configurations (e.g., LAA) in coordination with component carriers (CCs) operating in licensed bands. Operations in unlicensed spectrum may include downlink transmissions, uplink transmissions, peer-to-peer transmissions, or a combination of these. Duplexing in unlicensed spectrum may be based on frequency division duplexing (FDD), time division duplexing (TDD), or a combination of the two.

[0083] In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ techniques such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. For example, the wireless communication system 100 may use a transmission scheme between a transmitting device (e.g., the base station 105) and a receiving device (e.g., the UE 115), wherein the transmitting device is equipped with multiple antennas and the receiving device is equipped with one or more antennas. MIMO communication may employ multipath signal propagation to increase spectral efficiency by transmitting or receiving multiple signals via different spatial layers, which may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. Each of these multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams. Different spatial layers may be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device, and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0084] 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 or a UE 115) to shape or direct an antenna beam (e.g., a transmit beam or 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 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 a particular amplitude and phase shift to the signal carried via each antenna element 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).

[0085] In one example, the base station 105 may use multiple antennas or antenna arrays to perform beamforming operations for directional communication with the UE 115. For example, some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions, which may include a signal being transmitted according to different beamforming weight sets associated with different transmission directions. The transmissions in different beam directions may be used (e.g., by the base station 105 or a receiving device, such as the UE 115) to identify the beam direction used by the base station 105 for subsequent transmission and / or reception.

[0086] Some signals, such as data signals associated with a particular recipient device, may be transmitted by base station 105 in a single beam direction (e.g., a direction associated with a recipient device, such as UE 115). In some examples, a beam direction associated with transmissions along a single beam direction may be determined based on signals transmitted in different beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions, and UE 115 may report to base station 105 an indication of the signals received by it with the highest signal quality or other acceptable signal quality. Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques for transmitting signals multiple times in different directions (e.g., for identifying a beam direction used by UE 115 for subsequent transmission or reception) or for transmitting signals in a single direction (e.g., for transmitting data to a recipient device).

[0087] A receiving device (e.g., UE 115, which may be an example of a mmW receiving device) may try multiple receive beams when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiving device may try multiple receive directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different receive beams or receive directions. In some examples, the receiving device may use a single receive beam to receive along a single beam direction (e.g., when receiving a data signal). The single receive beam may be aligned on a beam direction determined based on listening according to different receive beam directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio, or other acceptable signal quality based on listening according to multiple beam directions).

[0088] In some cases, the antennas of a base station 105 or a UE 115 may be located within one or more antenna arrays that may 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 cases, the antennas or antenna arrays associated with a base station 105 may be located at different geographic locations. A base station 105 may have an antenna array having several rows and columns of antenna ports that the base station 105 may use to support beamforming for communications with a UE 115. Likewise, a UE 115 may have one or more antenna arrays that may support various MIMO or beamforming operations.

[0089] In some cases, the wireless communication system 100 can be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer can be based on IP. The radio link control (RLC) layer can perform packet segmentation and reassembly to communicate on the logical channel. The media access control (MAC) layer can perform priority handling and multiplex logical channels into transport channels. The MAC layer can also use HARQ to provide retransmission of the MAC layer, thereby improving link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection of the radio bearer that supports user plane data between the UE 115 and the base station 105 or the core network 130. At the physical layer, the transport channel can be mapped to the physical channel.

[0090] In some cases, UE 115 and base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. HARQ feedback is a technique that increases the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (e.g., automatic repeat request (ARQ)). HARQ can improve the throughput of the MAC layer in poor radio conditions (e.g., signal-to-noise ratio conditions). In some cases, a wireless device may support simultaneous slot HARQ feedback, where 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.

[0091] The time interval in LTE or NR can be represented by a basic time unit (which may refer to a sampling period T, for example). s =1 / 30,720,000 seconds). The time intervals of the communication resources may be organized according to radio frames each having a duration of 10 milliseconds (ms), where the frame period may be expressed as T f =307,200T s. A radio frame may be identified by a system frame number (SFN) ranging from 0 to 1023. Each frame may include 10 subframes numbered from 0 to 9, and each subframe may have a duration of 1 ms. A subframe may be further divided into 2 slots, each slot having a duration of 0.5 ms, and each slot may contain 6 or 7 modulation symbol periods (e.g., depending on the length of a cyclic prefix prepended to each symbol period). Excluding the cyclic prefix, each symbol period may contain 2048 sampling periods. In some cases, a subframe may be the minimum scheduling unit of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than a subframe or may be dynamically selected (e.g., in a burst of a shortened TTI (sTTI) or in a selected CC using sTTI).

[0092] In some wireless communication systems, a time slot may be further divided into a plurality of mini-slots containing one or more symbols. In some instances, a symbol of a mini-slot or a mini-slot may be the minimum scheduling unit. For example, each symbol may vary in duration depending on the subcarrier spacing or the operating frequency band. Further, some wireless communication systems may implement time slot aggregation, wherein a plurality of time slots or mini-slots are aggregated together and used for communication between UE 115 and base station 105.

[0093] The term "carrier" refers to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communications on the communication link 125. For example, a carrier of the communication link 125 may include a portion of a radio frequency spectrum band that operates according to a physical layer channel for a given radio access technology. Each physical layer channel may carry user data, control information, or other signaling. A carrier may be associated with a predefined frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by a UE 115. A carrier may be downlink or uplink (e.g., in FDD mode), or configured to carry downlink communications and uplink communications (e.g., in TDD mode). In some examples, a signal waveform transmitted on a carrier may include multiple subcarriers (e.g., using a multi-carrier modulation (MCM) technique such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform spread OFDM (DFT-S-OFDM)).

[0094] For different radio access technologies (e.g., LTE, LTE-A, LTE-A Pro, NR), the organizational structure of the carrier can be different. For example, the communication on the carrier can be organized according to TTIs or time slots, each of which can include user data and control information or signaling to support decoding of the user data. The carrier can also include dedicated acquisition signaling (e.g., synchronization signals or system information, etc.) and control signaling to coordinate the operation of the carrier. In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers.

[0095] 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 a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. In some examples, control information transmitted in a physical control channel may be distributed in a cascaded manner between different control regions (e.g., between a common control region or a common search space and one or more UE-specific control regions or UE-specific search spaces).

[0096] A carrier may be associated with a particular bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several predetermined bandwidths of a carrier for a particular radio access technology (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some examples, each served UE 115 may be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband protocol type associated with a predefined portion or range (e.g., a set of subcarriers or RBs) within a carrier (e.g., an "in-band" deployment of a narrowband protocol type).

[0097] In a system using MCM technology, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol 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). 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. In a MIMO system, wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and space resources (e.g., space layers), and the use of multiple space layers may further increase the data rate of communication with UE 115.

[0098] A device (e.g., base station 105 or UE 115) of wireless communication system 100 may have a hardware configuration that supports communication on a particular carrier bandwidth, or may be configurable to support communication on one of a set of carrier bandwidths. In some examples, wireless communication system 100 may include base stations 105 and / or UEs 115 that support simultaneous communication via carriers associated with more than one different carrier bandwidths.

[0099] The wireless communication system 100 may support communication with the UE 115 on multiple cells or carriers, a feature that may be referred to as carrier aggregation or multi-carrier operation. The UE 115 may be configured with multiple downlink CCs and one or more uplink CCs according to a carrier aggregation configuration. Carrier aggregation may be used with both FDD CCs and TDD CCs.

[0100] In some cases, the wireless communication system 100 may utilize an enhanced component carrier (eCC). An eCC may be characterized by one or more features including a wider carrier or frequency channel bandwidth, a shorter symbol duration, a shorter TTI duration, or a modified control channel configuration. In some cases, an eCC may be associated with a carrier aggregation configuration or a dual connectivity configuration (e.g., when multiple serving cells have suboptimal or non-ideal backhaul links). An eCC may also be configured for use in an unlicensed spectrum or a shared spectrum (e.g., where more than one operator is allowed to use the spectrum). An eCC characterized by a wide carrier bandwidth may include one or more segments that may be utilized by a UE 115 that is not capable of monitoring the entire carrier bandwidth or is otherwise configured to use a limited carrier bandwidth (e.g., to save power).

[0101] In some cases, an eCC may utilize a different symbol duration than other CCs, which may include using a reduced symbol duration compared to the symbol duration of other CCs. A shorter symbol duration may be associated with an increased spacing between adjacent subcarriers. A device utilizing an eCC (such as a UE 115 or a base station 105) may transmit a wideband signal (e.g., according to a frequency channel or carrier bandwidth of 20, 40, 60, 80 MHz, etc.) with a reduced symbol duration (e.g., 16.67 microseconds). A TTI in an eCC may include one or more symbol periods. In some cases, the TTI duration (i.e., the number of symbol periods in a TTI) may be variable.

[0102] The wireless communication system 100 may be an NR system that may utilize any combination of licensed, shared, and unlicensed spectrum bands, etc. The flexibility of eCC symbol duration and subcarrier spacing may allow eCC to be used across multiple spectrums. In some examples, NR shared spectrum may improve spectrum utilization and spectrum efficiency, particularly through dynamic vertical (e.g., across frequency domain) and horizontal (e.g., across time domain) sharing of resources.

[0103] Existing wireless communication systems may receive data packets as a bit stream, and may assign data packets to transport blocks based on the received bit stream. For some high throughput and low latency applications, it may be beneficial to group one or more transmitted packets into batches. As an example, packets in a video frame of an application may be included in batches (or files), where each batch is associated with a separate video frame. Additionally, it may be beneficial to confirm the receipt of packets included in a batch (such as a video frame). However, existing confirmation methods may have drawbacks.

[0104] In order to overcome the limitations of existing wireless communication systems, according to one or more aspects of the present disclosure, the wireless communication system 100 may be configured to group data packets of the same video frame into batches. Additionally or alternatively, the UE 115 (e.g., the first device) in the wireless communication system 100 may be configured to receive downlink control information from the base station 105 (e.g., the second device). In some examples, the base station 105 may indicate the assignment information in the downlink control information. In some cases, the UE 115 may determine the assignment information for processing batch-based feedback for a batch of downlink transmissions, which is configured to be processed together by the UE 115; in some cases, the assignment information for processing batch-based feedback may include a batch assignment index counter, a total batch assignment index, or both. The UE 115 may then receive a downlink transmission from the batch of downlink transmissions (e.g., a packet from a packet group included in a file). According to one or more aspects, the UE 115 may construct a codebook associated with processing batch-based feedback using a batch assignment index counter, or a total batch assignment index, or both. The UE 115 may determine an acknowledgement feedback for the downlink transmission. In some cases, the acknowledgement feedback may be based on the codebook. Upon determining the acknowledgement feedback, the UE 115 may transmit the acknowledgement feedback to the base station 105.

[0105] Figure 2 An example of a wireless communication system 200 that supports batch-based feedback in NR according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. The wireless communication system 200 may include a base station 105-a and a UE 115-a, which may be reference Figure 1 Examples of corresponding devices described. In one example, the base station 105-a can be referred to as a transmitter and the UE 115-a can be referred to as a receiver. In some implementations, the UE 115-a and the base station 105-a can operate in mmW spectrum and / or use NR technology.

[0106] In some wireless systems (e.g., NR wireless systems, such as wireless communication system 200), UE 115-a and base station 105-a may support low latency and high throughput communications. In some examples, different types of communications may require different traffic thresholds. Table 1 shows a table showing different traffic thresholds for different traffic types in an NR wireless system. For example, an NR system (e.g., wireless communication system 200) may support enhanced mobile broadband (eMBB) applications, ultra-reliable low latency communications (URLLC), and extended reality (XR) communications. Various applications and / or communications may be associated with various traffic thresholds. In some implementations, one or more XR applications (e.g., applications using XR traffic thresholds) may include cloud reality applications, virtual reality applications, gaming applications, and the like. As discussed herein, XR applications may be associated with high throughput (e.g., throughput for rendering video) and low latency. That is, such XR applications may be associated with high bitrates, high reliability, and low latency. In some implementations, XR applications may also include interactive video sessions (such as games or head-mounted displays). As described with reference to Table 1, each XR application may be associated with a packet delay budget and a packet error rate. For example, an XR application (or an XR communication session) may be associated with a packet delay budget ranging between 5 ms and 25 ms (e.g., 10 ms) and a packet error rate less than or equal to 10. -3 The packet error rate (e.g., 10 -6 ) is associated with.

[0107]

[0108] Table 1

[0109] Additionally, Table 2 illustrates multiple use cases for XR applications. For example, an XR application may include virtual reality split rendering (e.g., a gaming application). In such an implementation, a head-mounted display may be attached to a server that renders video frames. In such an example, processing of the video frames may be performed at a server (such as a server that hosts the XR application). Upon successful processing of the video frames, a communication link (such as a 5G communication link) may pass the processed video frames from the server to the head-mounted display. In order to successfully deliver the processed video frames in the XR application, the 5G communication link may be associated with high throughput and low latency (e.g., a high traffic threshold for the XR application). Additionally or alternatively, a second use case for the XR application may include augmented reality split computing. In an augmented reality application, the user's entire view may not be covered by the rendered video. Instead, the rendered video (such as a video rendered from a server) may be enhanced on a display (e.g., a camera feed) of a user device. As depicted in Table 2, a third use case for the XR application may include cloud gaming. In some examples, cloud gaming may be associated with high throughput and low latency communication links. In summary, XR applications may be affected by higher traffic thresholds, and it may be beneficial to provide a NR wireless communication system (such as the wireless communication system 200) with batch-based feedback for traffic associated with XR applications.

[0110]

[0111] Table 2

[0112] Existing wireless communication systems are configured to process data packets as bitstreams without knowing the batches (such as processing groups or files) associated with the packets. In some examples, in XR applications, one or more transmitted packets may be in the form of processing batches (such as processing groups, processing units, or files). As an example, packets in video frames in XR applications may be considered processing batches (or files). In some examples, the processing batches may each be associated with a file error rate. For example, the file error rate may be based on the number of packets in each processing batch (or file), a reliability threshold associated with each processing batch (e.g., whether the file includes I frames or P frames), or a combination thereof. Some wireless communication systems do not have methods to support a robust method for transmission of processing batches.

[0113] To overcome limitations of some wireless communication systems, according to one or more aspects of the present disclosure, the wireless communication system 200 may be configured to group packets of the same file into processing batches or processing groups. Additionally, one or more aspects of the present disclosure describe methods for providing batch-based feedback. Figure 2As depicted in the example of , the wireless communication system 200 includes a base station 105-a and a UE 115-a. The base station 105-a and the UE 115-a may employ HARQ feedback techniques to indicate whether data (such as data included in a processing batch) has been correctly received at the UE 115-a. For example, the base station 105-a may transmit one or more downlink transmissions (e.g., downlink messages) to the UE 115-a on the resources of the carrier 205. Accordingly, the UE 115-a may transmit an indication of whether one or more downlink transmissions are correctly received and decoded. For example, the UE 115-a may provide feedback related to decoding a downlink transmission on the resources of the carrier 210. In some cases, the carrier 205 and the carrier 210 may be the same carrier. In some cases, the carrier 205 and the carrier 210 may be CCs, and several different CCs may be used for communication between the UE 115-a and the base station 105-a. In some cases, carrier 205 and carrier 210 may use licensed spectrum, shared or unlicensed spectrum, or a combination thereof. When using unlicensed or shared spectrum, UE 115-a and base station 105-a may use contention-based access techniques (e.g., LBT procedures) to determine whether a channel is available before initiating a transmission.

[0114] In some wireless communication systems, the base station 105-a may transmit downlink control information on the carrier 205, which schedules one or more downlink transmissions and provides feedback parameters within the downlink control information. In some cases, the UE 115-a may respond with one or more feedback reports on the carrier 210. The downlink control information may be included in a downlink or uplink grant (e.g., in a downlink message (such as a physical downlink control channel (PDCCH) transmission)), or the UE 115-a may be explicitly triggered to transmit a feedback report (e.g., in a separate downlink control information message). According to one or more aspects of the present disclosure, when the information exists, the UE 115-a may be instructed by the base station 105-a to provide a feedback report based on assignment information associated with a batch of downlink transmissions (such as, which may be associated with a packet) (such as, one or more batch-based feedback parameters), which batch of downlink transmissions are configured to be processed together by the UE 115-a (such as, a file). For example, the base station 105-a may configure the UE 115-a for batch-based feedback, and the UE 115-a may construct a codebook based on receiving the assignment information and transmit an acknowledgment feedback based on the codebook construction.

[0115] In some cases, the wireless communication system 200 may operate in an NR system that may allow two transmission modes of HARQ-ACK codebooks that may include a semi-static (e.g., type 1) mode and a dynamic (e.g., type 2) mode. Both semi-static and dynamic modes may be used by carrier aggregation (CA) or non-CA operations. In some cases, the semi-static mode of the HARQ-ACK codebook for CA operation may be determined by the number of configured downlink serving cells. In some examples, the number of configured downlink cells per physical uplink control channel (PUCCH) group may be determined. In some examples, the semi-static mode of the HARQ-ACK codebook for CA operation may be determined by the number of configured code block groups per transport block for each configured downlink serving cell, the maximum number of transport blocks based on the configuration of each downlink serving cell, or a combination thereof.

[0116] In some cases, the downlink control information may include an indication of one or more downlink assignment indexes (DAIs) that may provide a counter of downlink assignments (e.g., transport block-based or code block group-based downlink transmissions) to be reported in the feedback report. In some cases, the DAI may include a counter DAI (cDAI) that may indicate the cumulative number of downlink transmissions within each downlink transmission group (e.g., the number of transport blocks from which the number of code blocks may be determined based on the number of configured code block groups in each transport block (e.g., 4 code block groups in each transport block)). In some cases, the DAI may also include a total DAI (tDAI) that may indicate the total number of DAIs across multiple CCs or downlink transmission groups. The tDAI may therefore provide an indication of whether the UE 115-a may have lost downlink control information for a carrier. In some wireless communication systems, an association set may be determined based on a configured HARQ-ACK timing set, where the HARQ-ACK payloads are sorted based on a downlink time index.

[0117] In some cases, DAI is not included in the downlink grant. In some cases, the number of DAI, tDAI, cDAI or a combination thereof may be indicated. For example, in CA operation, tDAI may be included in the downlink assignment. In some examples, for dynamic HARQ-ACK codebook construction and for uplink control information on PUSCH, cDAI may be used in downlink assignments and uplink DAI may be used in uplink grants. In some cases, the UE may determine the HARQ-ACK codebook size based on uplink DAI and cDAI. In the example of a single HARQ-ACK codebook, a single uplink DAI field of 2 bits may be included in the uplink grant. In the example of two HARQ-ACK subcodebooks (e.g., one for HARQ-ACK based on code block groups and one for HARQ-ACK based on transport blocks), two uplink DAI fields may be included in the uplink grant. In some cases, each of the two uplink DAI fields may include two bits.

[0118] In some examples, for constructing a dynamic HARQ-ACK codebook for CA operation (the codebook has a code block group configuration for one serving cell (e.g., per PUCCH group)), UE 115-a may be configured to generate two HARQ-ACK subcodebooks and combine the two HARQ-ACK subcodebooks to generate a single HARQ-ACK codebook (e.g., combining the HARCH-ACK codebook with the subcodebook for transport block based HARQ-ACK placed first). In some cases, a first subcodebook of the two HARQ-ACK subcodebooks may be associated with transport block based HARQ-ACK, and a second subcodebook of the two HARQ-ACK subcodebooks may be associated with code block group based HARQ-ACK.

[0119] According to one or more aspects of the present disclosure, the wireless communication system 200 may be configured to implement batch-based HARQ acknowledgments (e.g., HARQ acknowledgments for each file). In some cases, the wireless communication system 200 may implement batch-based HARQ acknowledgments in addition to the DAI. Therefore, the wireless communication system 200 may provide transport block-based HARQ and batch-based HARQ for efficient air operations to ensure that the entire processing batch (such as a file or packet group) is successfully delivered at the UE 115-a. In order to implement batch-based HARQ acknowledgments, the present disclosure provides a group assignment index (GAI). In some cases, the GAI may also be referred to as a batch assignment index. In some examples, the GAI may include a counter GAI (e.g., GAI_counter) and a total GAI (e.g., GAI_total). In some cases, the GAI_counter may be referred to as a batch assignment index counter, and the GAI_total may be referred to as a total batch assignment index.

[0120] In some implementations, the wireless communication system 200 may be configured to implement a policy regarding file handling. For example, if all packets of a file are received, the base station 105-a and the UE 115-a may determine that a processing batch (or the file) is available. In some implementations, if all packets associated with a processing batch (or file) are not successfully received at the UE 115-a, the wireless communication system 200 may determine a batch error. One or more aspects of the present disclosure provide for UE 115-a to determine assignment information based on batch feedback for processing a batch of downlink transmissions (such as, a processing batch or file), which is configured to be processed together by UE 115-a. For example, UE 115-a may receive downlink control information (e.g., via carrier 205), and may identify a batch assignment index counter (e.g., GAI_counter) or a total batch assignment index (e.g., GAI_total), or both. UE 115-a may additionally receive downlink transmissions from the batch of downlink transmissions. That is, UE 115-a may receive packet transmissions associated with files configured to be processed together at UE 115-a (e.g., associated with each packet). Upon receiving a downlink transmission from the batch of downlink transmissions, UE 115-a may construct a HARQ-ACK codebook based on a batch assignment index counter (e.g., GAI_counter) or a total batch assignment index (e.g., GAI_total) or both. In some cases, UE 115-a may determine confirmation feedback based on the codebook and the result of decoding the downlink transmission from the batch of downlink transmissions. In some cases, UE 115-a may transmit the confirmation feedback to base station 105-a. Therefore, one or more aspects of the present disclosure provide a mechanism for indicating a GAI (or assignment index) and constructing a HARQ codebook based on the GAI.

[0121] Figure 3 An example of a traffic flow 300 supporting batch-based feedback in NR according to aspects of the present disclosure is illustrated. In some examples, the traffic flow 300 may be implemented as described with reference to Figure 1 and Figure 2 Aspects of wireless communication system 100 and wireless communication system 200 are described.

[0122] Traffic flow 300 may include multiple IP packets 305. In some implementations, an NR wireless system (such as wireless communication system 200 supporting XR applications) may be configured to group one or more IP packets 305 into one or more processing batches (or files). Figure 2As described, the wireless communication system may group one or more IP packets 305 based on a reliability threshold. In some cases, the first packet group may be associated with an I frame, and the second packet group may be associated with a P frame. In this example, the first packet group may have a higher reliability threshold (such as a high priority) than the second packet group. Additionally or alternatively, the wireless communication system may group one or more IP packets 305 based on a delivery deadline associated with each IP packet 305. In some implementations, the delivery deadline of a packet may be interpreted as the sum of the arrival time of the packet (e.g., at the base station 105) and the packet delay budget associated with the packet. In some cases, a group of packets with the same (or similar) delivery deadline may be grouped together as a processing batch (or file). In some implementations, the wireless communication system may group one or more IP packets 305 based on a policy for handling processing batches. For example, if a processing batch (such as a video frame) is available at the receiving side (e.g., UE 115) when all IP packets are successfully received, the wireless communication system may include one or more IP packets 305 in the processing batch (or file). In some examples, if the policy indicates that a coherent stream of IP packets 305 up to the first packet in error is available at the recipient, the wireless communication system may include one or more IP packets 305 in the processing batch (or file).

[0123] exist Figure 3 In the example of , the wireless communication system generates 6 files (or processing batches). In some implementations, each file may include a collection of IP packets 305 jointly processed by applications (such as, XR applications). In some examples, the wireless communication system may determine the IP packets 305 associated with the file based on the maximum transmission unit (MTU) setting on the IP stack that interfaces with the application. In some examples, the wireless communication system may further segment the IP packets 305 into smaller IP packet fragments (not shown). In some implementations, bursts of files (or processing batches) may be referred to as files generated by an application at the same (or similar) time. As Figure 3 As depicted in the example, the wireless communication system generates file 1 and file 2 at the same (or similar) time. Accordingly, file 1 and file 2 are included in the first burst (burst 1) of the traffic flow 300. Similarly, the wireless communication system (e.g., an XR application included in the wireless communication system) may generate a second burst (burst 2) including file 3, file 4, and file 5. Additionally, the wireless communication system may generate a third burst (burst 3) including file 6. According to one or more aspects of the present disclosure, the wireless communication system may implement a method for confirming the receipt of each file (or processing batch). Specifically, the present disclosure provides a file-based (or batch-based) HARQ confirmation mechanism. As Figure 2As depicted in the example of , UE 115-a (e.g., a first device) may receive a GAI that may provide a counter for downlink assignments (e.g., for processing batch-based or file-based downlink transmissions). In some cases, the GAI may include a batch assignment index counter (e.g., GAI_COUNTER) that may indicate a cumulative number of assignments in a processed batch (e.g., a number of assignments in a file), and a total batch assignment index (e.g., GAI_TOTAL) that may indicate the total number of assignments in a processed batch (or file).

[0124] Figure 4 An example of a mapping 400 that supports batch-based feedback in NR according to aspects of the present disclosure is illustrated. In some examples, the mapping 400 may be implemented as described with reference to Figure 1 and Figure 2 Various aspects of the wireless communication system 100 and the wireless communication system 200 are described. Figure 4 In an example of FIG. 4 , mapping 400 may depict a mapping of packets (such as data packets included in one or more processing batches) to one or more transport blocks based on a processing batch assignment for each packet. In one implementation, packets may be mapped to one or more files (or processing batches) based on a delivery deadline associated with the packets.

[0125] According to one or more aspects of the present disclosure, a transmitting party (e.g., as referred to in Figure 1 The UE 115 or base station 105 described may map a first group of packets (e.g., packets associated with file 1) to a first transport block (TB 1), a second transport block (TB 2), and a third transport block (TB 3). Figure 4 As depicted in the example of , the first packet group may be associated with processing a first batch (or file). In some cases, processing the first batch may have an urgent deadline. In some examples, the transmitter may map a second packet group (such as, packets associated with file 2) to a fourth transmission block (TB 4), a fifth transmission block (TB 5), a sixth transmission block (TB 6), and a seventh transmission block (TB 7). In some examples, the second packet group may be associated with processing a second batch (or file). In some cases, processing the second batch may have a non-urgent deadline. As described with reference to Figure 4 As described, base station 105 may map the packets as previously described, and UE 115 may receive the mapped packets. UE 115 may then optionally transmit one or more transport block acknowledgments (for TB 1, TB 2, TB 3, TB 4, TB 5, TB 6, and TB 7).

[0126] According to one or more aspects of the present disclosure, UE 115 may provide processing batch-based (or file-based) confirmations to indicate receipt of processing batches. For example, UE 115 may transmit processing batch-based confirmations to confirm receipt of file 1, and transmit processing batch-based confirmations to confirm receipt of file 2. In some cases, UE 115 may provide processing batch-based confirmations and processing batch-based confirmations based on HARQ-ACK codebooks constructed using a batch assignment index counter (e.g., GAI_counter) or a total batch assignment index (e.g., GAI_total) or both.

[0127] As previously referenced Figure 2 and 3 As discussed, UE 115 (e.g., a first device or a receiving device) may determine assignment information (e.g., GAI_counter and / or GAI_total) for processing a batch of downlink transmissions based on feedback of a batch (e.g., a file). In some cases, UE 115 may receive downlink control information from base station 105 (e.g., a second device or a transmitting device), and may determine assignment information from the downlink control information. In some cases, UE 115 may determine the size (or group size) of the batch of downlink transmissions based on receiving semi-static or dynamic signaling from base station 105 (e.g., via GAI_total). In some cases, GAI_counter and / or GAI_total fields may be present in the downlink assignment. In some examples, UE 115 may identify a bit width associated with a batch assignment index counter (e.g., GAI_counter) based on receiving downlink control information. The bit width may include one or two bits (e.g., 1 bit long or 2 bits long). In some examples, if the size (or group size) of the batch of downlink transmissions is greater than the size of the bit width, the UE 115 may determine the index (or group index) associated with the downlink transmission based on a many-to-one mapping. In an example group size of 8 with a 2-bit GAI, group indexes 0 and 4 may be mapped to 00GAI, group indexes 1 and 5 may be mapped to 01GAI, group indexes 2 and 6 may be mapped to 10GAI, and group indexes 3 and 7 may be mapped to 11GAI. In some cases, the probability of misreading between 0 and 4 (or other combinations thereof) at the UE 115 is less than a threshold. The bit width may also be different in different formats associated with the downlink control information. For example, the format associated with the downlink control information may include fallback downlink control information containing a single bit or non-fallback downlink control information containing two bits.

[0128] As previously discussed, UE 115 may receive downlink control information and may identify the total number of downlink transmissions included in the batch of downlink transmissions (e.g., via GAI_total). The GAI_total field may be included in both the downlink downlink control information (e.g., when UE 115 is configured with CA) and the uplink downlink control information. In some implementations, GAI_total may be configured to count the total number of assignments in a processing batch (or group), for example, at a specific time (e.g., a time slot), and GAI_total may be updated in subsequent time instances (e.g., a time slot). The bit width associated with the total batch assignment index (e.g., GAI_total) may be equal to or less than the number of bits that may uniquely identify all indexes in the processing batch (similar to GAI_counter). In some examples, an entry in the batch assignment index counter (e.g., GAI_counter) may indicate that a physical downlink control channel (PDSCH) is not part of the batch of downlink transmissions. For example, UE 115 may receive a second downlink transmission from base station 105, and may determine based on the assignment indicator (e.g., based on an entry in a batch assignment index counter) that the second downlink transmission is not included in the batch of downlink transmissions. In some examples, UE 115 may receive second assignment information (e.g., a separate group indicator), and UE 115 may determine based on the second assignment information that the second downlink transmission is not included in the batch of downlink transmissions. In one example, all PDSCHs in the HARQ-ACK codebook may be associated with processing the same batch (or group).

[0129] According to one or more aspects, the base station 105 may configure the presence of assignment information (e.g., GAI). For example, when processing of batch-based transmissions (or file-based transmissions) is configured, the base station 105 may determine that the GAI may be configurable. In one example, the assignment information (e.g., GAI) is configurable on a per-UE basis or a per-CC basis. In one example, if the base station 105 configures the GAI on a per-CC basis, it may imply that the UE 115 does not support processing of batch-based transmissions or does not explicitly indicate to the UE 115 to process batch-based transmissions. In some implementations, the GAI may coexist with the DAI or may be separate from the DAI. Reference may be used Figure 2115 to indicate the DAI using the techniques described herein. In one example, when both the GAI and the DAI are indicated to the UE 115, the UE 115 may construct a first subcodebook (e.g., a HARQ-ACK subcodebook) based on a batch assignment index counter (e.g., GAI_counter) or a total batch assignment index (e.g., GAI_total) or both. The UE 115 may also construct a second subcodebook based on the DAI (e.g., for non-batch-based transmissions or codeblock-based transmissions). In some cases, the UE 115 may concatenate the first subcodebook with the second subcodebook for joint encoding and transmission. In some cases, the UE 115 may be configured to encode and transmit downlink transmissions (e.g., batch-based transmissions and non-batch-based transmissions) separately due to different reliability requirements.

[0130] In some cases, the UE 115 may determine to enable a code block group for a first CC associated with the batch of downlink transmissions and disable a code block group for a second CC associated with the batch of downlink transmissions. In some cases, the UE 115 may construct a codebook associated with processing batch-based feedback based on determining to enable a code block group for a first CC associated with the batch of downlink transmissions and disable a code block group for a second CC. For example, if a code block group is enabled for a CC, the UE 115 may be configured to count the group index or the total number of assignments in the group as the same as another CC (or CCs) without a code block group. That is, the UE 115 may be configured to count one assignment per CC.

[0131] Table 3 provides an example of slot-based PDSCH scheduling. Table 3 includes 3 CCs and 3 slots in each CC. In the example of Table 3, UE 115 is scheduled using non-batch-based PDSCH in {CC1, slot n+1} and {CC2, slot n+2}, while UE 115 is scheduled using group-based PDSCH in {CC0, slot n}, {CC2, slot n}, {CC0, slot n+1} and {CC1, slot n+2}. In this example, DAI is used to count non-batch-based PDSCH as well as batch-based PDSCH, while GAI is used to count batch-based PDSCH. Although not demonstrated herein, it is understood that DAI may not be used to count non-batch-based PDSCH.

[0132] In this example, slot n includes a batch-based PDSCH. In slot n and in CC0, the tDAI value is 1 to indicate a total of 2 PDSCHs in slot n (e.g., a PDSCH in CC0 and a PDSCH in CC2). The cDAI value is 0 in CC0 to indicate the first PDSCH in slot n, and the cDAI value is 1 in CC2 to indicate the second PDSCH in slot n. Similarly, in slot n and in CC0 and CC2, the GAI_total (GAI_t) value is 1 to indicate a total of 2 batch-based PDSCHs in slot n (e.g., a batch-based PDSCH in CC0 and a batch-based PDSCH in CC2). The GAI_counter (GAI_c) value is 0 in CC0 to indicate the first batch-based PDSCH in slot n, and the GAI_c value is 1 in CC2 to indicate the second batch-based PDSCH in slot n. Additionally, slot n+1 includes one non-batch-based PDSCH (in CC1) and one batch-based PDSCH (in CC). In slot n+1 and in CC0 and CC1, the tDAI value is 3 to indicate a total of 4 PDSCHs in slots n and n+1. The cDAI value in CC0 is 2 to indicate the third PDSCH in slot n+1 (e.g., counting slot n), and the cDAI value in CC1 is 3 to indicate the fourth PDSCH in slot n+1 (e.g., counting slot n). Similarly, in slot n+1 and in CC0 and CC1, the GAI_t value is 2 to indicate three batch-based PDSCHs in slot n+1 (e.g., counting slot n). The GAI_c value is 2 in CC0 to indicate the third batch-based PDSCH in slot n+1 (eg, counting slot n), while the GAI_c value is x in CC1 to indicate that there is no batch-based PDSCH in slot n+1 and CC1.

[0133] In slot n+2 and in CC1 and CC2, the tDAI value is 1 to indicate a total of 6 PDSCHs in slots n, n+1, and n+2. The cDAI value in CC1 is 0 to indicate the fifth PDSCH in slot n+2 (e.g., counting slots n and n+1), while the cDAI value in CC2 is 1 to indicate the sixth PDSCH in slot n+2 (e.g., counting slots n and n+1). Similarly, in slot n+2 and in CC1 and CC2, the GAI_t value is 3 to indicate a total of four batch-based PDSCHs in slot n+2 (e.g., counting slots n and n+1). The GAI_c value in CC1 is 3 to indicate the fourth batch-based PDSCH in slot n+2 (e.g., counting slots n and n+1), while the GAI_c value in CC2 is x to indicate that there are no batch-based PDSCHs in slot n+2 and CC2.

[0134]

[0135] Table 3

[0136] Additionally or alternatively, the UE 115 may indicate HARQ feedback (e.g., batch-based or group-level HARQ feedback) by performing a logical AND of each of the HARQ feedbacks of the batch. That is, the UE 115 may be configured to transmit an acknowledgement if all members of the batch are acknowledged; otherwise, the UE 115 may be configured to transmit a negative acknowledgement for the entire batch. In some cases, the feedback may be cascaded to the transport block-based HARQ, or transmitted separately. It is possible to process two or more batches (e.g., groups) with interleaved (e.g., in time) transmissions. In such cases, the UE 115 may handle two or more batches simultaneously by determining a batch index based on receiving downlink control information. In some cases, the batch index may indicate second assignment information for processing batch-based feedback for a second batch of downlink transmissions. The batch index may be included in an information field in the downlink control information. In some cases, the UE 115 may derive the batch index using two or more information fields in the downlink control information. In some examples, the batch index may include an explicit batch index indicating the batch of downlink transmissions and a second batch of downlink transmissions.

[0137] In some examples, in order to handle two or more batches at the same time, the base station 105 may indicate two or more GAIs. In some cases, instead of using two or more GAIs, the base station 105 may combine the GAI with other information fields (e.g., HARQ process ID / CC index) to distinguish downlink transmissions of different batches (or groups). For example, the first batch of downlink transmissions may have 4 members, and HARQ process IDs 0, 2, 3, 5 may be used to schedule for initial transmission. In such cases, the UE 115 may be configured to continue to use these HARQ process IDs for retransmissions. Additionally, the second batch of downlink transmissions may have 6 members, and HARQ process IDs 1, 4, 6, 7, 8, 9 may be used to schedule for new transmissions and subsequent retransmissions. In some cases, the UE 115 may be configured to distinguish the first batch of downlink transmissions from the second batch of downlink transmissions. In this example, the UE may provide HARQ feedback for different batches of downlink transmissions, respectively, or discard the HARQ response of the older group. In some cases, base station 105 may also prohibit two or more batches of interleaved transmissions (eg, transmissions that at least partially overlap in time).

[0138] As discussed herein, according to aspects of the present disclosure, acknowledgement feedback for PDSCH transmissions using GAI may be provided for group-based HARQ in XR applications.

[0139] Figure 5 An example of a process flow 500 for supporting batch-based feedback in NR according to aspects of the present disclosure is illustrated. In some examples, the process flow 500 can implement aspects of the wireless communication system 100 and the wireless communication system 200. The process flow 500 can include a base station 105-b and a UE 115-b, which can be referenced Figures 1 to 4 Examples of corresponding devices described. Base station 105-b and UE 115-b can support batch-based feedback in NR to achieve resource conservation while maintaining latency requirements.

[0140] In the following description of process flow 500, operations between UE 115-b and base station 105-b may be transmitted in an order different from the exemplary order shown. Operations performed by UE 115-b or base station 105-b may be performed in an order different from the exemplary order shown or at different times. Certain operations may also be excluded from process flow 500, or other operations may be added to process flow 500. In addition, base station 105-b and UE 115-c are not intended to be representative, as the described techniques may be associated with any number of devices.

[0141] At 505, UE 115-b (e.g., a first device) may receive downlink control information from base station 105-b (e.g., a second device). At 510, UE 115-b may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by UE 115-b; in some cases, the assignment information for processing batch-based feedback may include a batch assignment index counter (e.g., GAI_COUNTER), a total batch assignment index (e.g., GAI_TOTAL), or both.

[0142] At 515, UE 115-b may receive a downlink transmission from the batch of downlink transmissions from base station 105-b. At 520, UE 115-b may construct a codebook associated with processing batch-based feedback. In some cases, the codebook may be based on the assignment information and the downlink transmission.

[0143] At 525, the UE 115-b may determine an acknowledgment feedback for the downlink transmission. In some cases, the acknowledgment feedback may be based on the codebook. At 530, the UE 115-b may transmit the acknowledgment feedback to the base station 105-b.

[0144] Figure 6A block diagram 600 of a device 605 supporting batch-based feedback in NR according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of a UE 115 (e.g., a first device) 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).

[0145] 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 batch-based feedback in NR, etc.). The information may be passed to other components of the device 605. The receiver 610 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The receiver 610 may utilize a single antenna or a collection of antennas.

[0146] The communication manager 615 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions, which are configured to be processed together by the first device. The communication manager 615 may receive a downlink transmission from the batch of downlink transmissions from the second device. The communication manager 615 may construct a codebook associated with processing batch-based feedback based on the assignment information and the downlink transmission. The communication manager 615 may determine an acknowledgement feedback for the downlink transmission based on the codebook. The communication manager 615 may transmit the acknowledgement feedback to the second device. The communication manager 615 may be an example of various aspects of the communication manager 910 described herein.

[0147] 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.

[0148] 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).

[0149] 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 described transceiver 920. The transmitter 620 may utilize a single antenna or a collection of antennas.

[0150] Figure 7 A block diagram 700 of a device 705 supporting batch-based feedback in NR 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).

[0151] 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 batch-based feedback in NR, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The receiver 710 may utilize a single antenna or a collection of antennas.

[0152] The communication manager 715 may be an example of aspects of the communication manager 615 as described herein. The communication manager 715 may include an assignment information component 720, a downlink transmission component 725, a codebook construction component 730, an acknowledgment feedback component 735, and a feedback transmission component 740. The communication manager 715 may be an example of aspects of the communication manager 910 described herein.

[0153] The assignment information component 720 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The downlink transmission component 725 may receive a downlink transmission from the batch of downlink transmissions from the second device. The codebook construction component 730 may construct a codebook associated with processing batch-based feedback based on the assignment information and the downlink transmission. The confirmation feedback component 735 may determine confirmation feedback for the downlink transmission based on the codebook. The feedback transmission component 740 may transmit the confirmation feedback to the second device.

[0154] 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 aspects of the described transceiver 920. The transmitter 745 may utilize a single antenna or a collection of antennas.

[0155] Figure 8 A block diagram 800 of a communication manager 805 supporting batch-based feedback in NR is shown in accordance with 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 an assignment information component 810, a downlink transmission component 815, a codebook construction component 820, an acknowledgment feedback component 825, a feedback transmission component 830, a downlink control information component 835, a bit width component 840, a mapping component 845, a configuration component 850, a code block group component 855, and a batch index component 860. Each of these modules may be in direct or indirect communication with each other (e.g., via one or more buses).

[0156] The assignment information component 810 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. In some cases, the assignment information for processing batch-based feedback includes a batch assignment index counter, a total batch assignment index, or both. The downlink transmission component 815 may receive a downlink transmission from the batch of downlink transmissions from the second device. The codebook construction component 820 may construct a codebook associated with processing batch-based feedback based on the assignment information and the downlink transmission. The confirmation feedback component 825 may determine confirmation feedback for the downlink transmission based on the codebook. The feedback transmission component 830 may transmit the confirmation feedback to the second device.

[0157] The downlink control information component 835 can receive downlink control information from the second device. In some examples, the codebook construction component 820 can determine a batch assignment index counter based on receiving the downlink control information, wherein constructing the codebook is based on determining the batch assignment index counter.

[0158] The bit width component 840 can identify a bit width associated with the batch assignment index counter based on receiving downlink control information. The mapping component 845 can determine a mapping between an index associated with the downlink transmission and a bit width value associated with the batch assignment index counter, wherein constructing the codebook is based on determining the mapping.

[0159] In some cases, the bit width associated with the batch assignment index counter is based on a format associated with the downlink control information. In some cases, the format associated with the downlink control information includes fallback downlink control information. In some cases, the fallback downlink control information includes a single bit. In some cases, the format associated with the downlink control information includes non-fallback downlink control information. In some cases, the non-fallback downlink control information includes two bits.

[0160] In some examples, mapping component 845 may determine that a first index associated with a first downlink transmission and a second index associated with a second downlink transmission are mapped to the same bit width value, wherein constructing the codebook is based on determining the mapping.

[0161] In some examples, the downlink control information component 835 may receive downlink control information from the second device, the downlink control information indicating a total number of downlink transmissions included in the batch of downlink transmissions. In some examples, the codebook construction component 820 may identify a total batch assignment index based on receiving the downlink control information, wherein constructing the codebook is based on identifying the total batch assignment index.

[0162] In some examples, the bit width component 840 may identify a bit width associated with the total batch assignment index based on receiving downlink control information, wherein constructing the codebook is based on identifying the bit width associated with the total batch assignment index. In some cases, the bit width associated with the total batch assignment index is the same as the number of bits associated with uniquely identifying each of the total number of downlink transmissions. In some cases, the bit width associated with the total batch assignment index is less than the number of bits associated with uniquely identifying each of the total number of downlink transmissions.

[0163] In some examples, the downlink transmission component 815 may receive a second downlink transmission from the batch of downlink transmissions from the second device. In some examples, the codebook construction component 820 may determine, based on the assignment information, that the second downlink transmission is not included in the batch of downlink transmissions configured to be processed together by the first device, wherein constructing a codebook associated with processing batch-based feedback is based on the determination. In some cases, the assignment information includes an entry in a batch assignment index counter indicating that the second downlink transmission is not included in the batch of downlink transmissions.

[0164] In some examples, assignment information component 810 can determine second assignment information for processing batch-based feedback for a second batch of downlink transmissions.

[0165] In some cases, the assignment information for processing batch-based feedback is configured for each device associated with the second device, or each CC associated with the first device, or a combination thereof. In some examples, the downlink transmission component 815 may receive a second downlink transmission from the second batch of downlink transmissions from the second device. In some examples, the codebook construction component 820 may determine, based on the second assignment information, that the second downlink transmission is included in the second batch of downlink transmissions configured to be processed together by the first device, wherein constructing a codebook associated with processing batch-based feedback is based on determining that the second downlink transmission is included in the second batch of downlink transmissions.

[0166] Configuration component 850 can determine, based on determining assignment information for processing batch-based feedback, that the first device is configured to process batch-based transmissions, wherein constructing a codebook associated with processing batch-based feedback is based on the determination.

[0167] In some examples, the codebook construction component 820 may determine second assignment information for non-batch-based feedback for a second batch of downlink transmissions, wherein the non-batch-based feedback includes code block group-based feedback, non-group-based feedback, or a combination thereof. In some examples, the downlink transmission component 815 may receive a second downlink transmission from a second device. In some examples, the codebook construction component 820 may construct a second codebook associated with the non-batch-based feedback based on the second assignment information.

[0168] In some cases, the second assignment information for non-batch-based feedback includes assignment information for processing batch-based feedback. The code block group component 855 can determine to enable a code block group for a first CC associated with the batch of downlink transmissions and disable a code block group for a second CC associated with the batch of downlink transmissions, wherein constructing a codebook associated with processing batch-based feedback is based on determining to enable a code block group for the first CC associated with the batch of downlink transmissions and disable a code block group for the second CC associated with the batch of downlink transmissions.

[0169] In some examples, the confirmation feedback component 825 may transmit a negative confirmation feedback indicating a negative confirmation feedback for at least one downlink transmission in the batch of downlink transmissions. In some examples, the confirmation feedback component 825 may determine a second confirmation feedback for a second downlink transmission, wherein transmitting the confirmation feedback further includes transmitting the second confirmation feedback.

[0170] In some examples, the downlink control information component 835 can receive downlink control information from the second device. The batch index component 860 can determine a batch index based on receiving the downlink control information. In some examples, the assignment information component 810 can determine second assignment information for processing batch-based feedback for a second batch of downlink transmissions based on the batch index, wherein the batch of downlink transmissions and the second batch of downlink transmissions overlap at least partially in time.

[0171] In some examples, batch index component 860 can determine the batch index based on two or more information fields in the downlink control information. In some cases, the batch index is included in an information field in the downlink control information. In some cases, the batch index includes an explicit batch index indicating the batch of downlink transmissions and the second batch of downlink transmissions.

[0172] The actions performed by the communication manager 805 as described herein may be implemented to achieve one or more potential advantages. For example, in some implementations, the communication manager 805 may reduce communication latency and enhance reliability and channel throughput for XR applications. Improvements in communication links supporting XR applications (e.g., reducing communication latency and improving reliability) may further save power and increase battery life at the UE 115 (e.g., by reducing complexity and retransmissions).

[0173] Fig. 9A diagram of a system 900 including a device 905 supporting batch-based feedback in NR according to aspects of the present disclosure is shown. The device 905 may be an example of or include a component of a device 605, a device 705, or a UE 115 as described herein. 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).

[0174] The communication manager 910 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions, the batch of downlink transmissions being configured to be processed together by the first device. The communication manager 910 may receive a downlink transmission from the batch of downlink transmissions from the second device. The communication manager 910 may construct a codebook associated with processing batch-based feedback based on the assignment information and the downlink transmission. The communication manager 910 may determine an acknowledgment feedback for the downlink transmission based on the codebook. The communication manager 910 may transmit the acknowledgment feedback to the second device.

[0175] 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.

[0176] The transceiver 920 may communicate bidirectionally via one or more antennas, wired or wireless links, as described herein. 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.

[0177] 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.

[0178] 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 I / O system (BIOS) that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0179] 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) so that the device 905 performs various functions (e.g., functions or tasks that support batch-based feedback in NR).

[0180] 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.

[0181] Fig.10 A block diagram 1000 of a device 1005 supporting batch-based feedback in NR according to 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).

[0182] 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 batch-based feedback in NR, 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 described transceiver 1320. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0183] The communication manager 1015 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The communication manager 1015 may transmit the assignment information and a downlink transmission from the batch of downlink transmissions to the first device. The communication manager 1015 may receive an acknowledgment feedback for the transmitted downlink transmission from the first device, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback. The communication manager 1015 may be an example of aspects of the communication manager 1310 described herein.

[0184] 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, a DSP, an application specific integrated circuit (ASIC), an 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.

[0185] 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).

[0186] 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 aspects of the described transceiver 1320. The transmitter 1020 may utilize a single antenna or a collection of antennas.

[0187] Fig.11 A block diagram 1100 of a device 1105 supporting batch-based feedback in NR according to 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 1135. 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).

[0188] 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 batch-based feedback in NR, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The receiver 1110 may utilize a single antenna or a collection of antennas.

[0189] Communications manager 1115 may be an example of aspects of communications manager 1015 as described herein. Communications manager 1115 may include assignment information component 1120, downlink transmission component 1125, and acknowledgment feedback component 1130. Communications manager 1115 may be an example of aspects of communications manager 1310 as described herein.

[0190] The assignment information component 1120 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The downlink transmission component 1125 may transmit the assignment information and a downlink transmission from the batch of downlink transmissions to the first device. The confirmation feedback component 1130 may receive confirmation feedback for the transmitted downlink transmission from the first device, wherein the confirmation feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0191] The transmitter 1135 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1135 may be co-located with the receiver 1110 in a transceiver module. Fig.13 Examples of various aspects of the described transceiver 1320. The transmitter 1135 may utilize a single antenna or a collection of antennas.

[0192] Fig.12 A block diagram 1200 of a communication manager 1205 supporting batch-based feedback in NR is shown in accordance with 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 an assignment information component 1210, a downlink transmission component 1215, an acknowledgment feedback component 1220, a downlink control information component 1225, a bit width component 1230, a mapping component 1235, a configuration component 1240, and a batch index component 1245. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0193] The assignment information component 1210 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The downlink transmission component 1215 may transmit the assignment information and a downlink transmission from the batch of downlink transmissions to the first device. The confirmation feedback component 1220 may receive confirmation feedback for the transmitted downlink transmission from the first device, wherein the confirmation feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0194] The downlink control information component 1225 may transmit downlink control information to the first device, wherein a batch assignment index counter is included in the downlink control information, and wherein the codebook is based on the batch assignment index counter. In some examples, the downlink control information component 1225 may transmit downlink control information to the first device, the downlink control information indicating a total number of downlink transmissions included in the batch of downlink transmissions, wherein a total batch assignment index is included in the downlink control information, and wherein the codebook is based on identifying the total batch assignment index. In some cases, the assignment information for processing batch-based feedback includes a batch assignment index counter, a total batch assignment index, or both.

[0195] The bit width component 1230 may identify a bit width associated with a batch assignment index counter based on receiving downlink control information. In some examples, the bit width component 1230 may identify a bit width associated with a total batch assignment index based on transmitting downlink control information, wherein the codebook is based on the bit width associated with the total batch assignment index. The mapping component 1235 may determine a mapping between an index associated with the downlink transmission and a bit width value associated with a batch assignment index counter, wherein the codebook is based on the mapping. In some examples, the mapping component 1235 may determine that a first index associated with a first downlink transmission and a second index associated with a second downlink transmission are mapped to the same bit width value, wherein the codebook is based on the determination.

[0196] In some cases, the bit width associated with the batch assignment index counter is based on the format associated with the downlink control information. In some cases, the format associated with the downlink control information includes fallback downlink control information. In some cases, the fallback downlink control information includes a single bit. In some cases, the format associated with the downlink control information includes non-fallback downlink control information. In some cases, the non-fallback downlink control information includes two bits. In some cases, the bit width associated with the total batch assignment index is the same as the number of bits associated with uniquely identifying each downlink transmission in the total number of downlink transmissions. In some cases, the bit width associated with the total batch assignment index is less than the number of bits associated with uniquely identifying each downlink transmission in the total number of downlink transmissions.

[0197] In some examples, downlink transmission component 1215 can transmit a second downlink transmission to the first device, wherein the second downlink transmission is not included in the batch of downlink transmissions configured to be processed together by the first device. In some examples, assignment information component 1210 can determine second assignment information for processing batch-based feedback for the second batch of downlink transmissions. In some examples, assignment information component 1210 can transmit the second assignment information and the second batch of downlink transmissions to the first device.

[0198] Configuration component 1240 can determine that the first device is configured to process batch-based transmissions based on determining the assignment information for processing batch-based feedback, wherein transmitting the assignment information is based on the determination. In some examples, assignment information component 1210 can configure the assignment information for processing batch-based feedback for each device associated with the second device, or each CC associated with the first device, or a combination thereof.

[0199] The batch index component 1245 can determine a batch index associated with one or more downlink transmissions. In some examples, the downlink control information component 1225 can transmit downlink control information indicating a batch index to the first device, the batch index including second assignment information for processing batch-based feedback for a second batch of downlink transmissions, wherein the batch of downlink transmissions and the second batch of downlink transmissions overlap at least partially in time.

[0200] In some examples, downlink transmission component 1215 can determine that the batch of downlink transmissions and the second batch of downlink transmissions are interleaved in time. In some examples, downlink transmission component 1215 can refrain from transmitting the second batch of downlink transmissions based on the determination. In some cases, the assignment information includes an entry in a batch assignment index counter indicating that the second downlink transmission is not included in the batch of downlink transmissions.

[0201] In some cases, the batch index is included in an information field in the downlink control information. In some cases, the batch index includes an explicit batch index indicating the batch of downlink transmissions and the second batch of downlink transmissions.

[0202] Fig.13 A diagram of a system 1300 including a device 1305 supporting batch-based feedback in NR according to 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 the above 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).

[0203] The communication manager 1310 may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The communication manager 1310 may transmit the assignment information and a downlink transmission from the batch of downlink transmissions to the first device. The communication manager 1310 may receive, from the first device, an acknowledgment feedback for the transmitted downlink transmission, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback.

[0204] 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.

[0205] The transceiver 1320 may communicate bidirectionally via one or more antennas, wired or wireless links, as described herein. 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.

[0206] 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.

[0207] 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.

[0208] 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., various functions or tasks to support batch-based feedback in NR).

[0209] 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 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.

[0210] 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.

[0211] Fig.14 1 is a flow chart illustrating a method 1400 for supporting batch-based feedback in NR according to aspects of the present disclosure. The operations of the method 1400 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE 115 or components thereof as described herein. Figures 6 to 9In some examples, a first device (e.g., UE 115) may execute an instruction set to control functional elements of the first device to perform the functions described herein. Additionally or alternatively, the first device may use dedicated hardware to perform various aspects of the functions described herein.

[0212] At 1405, the first device may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 6 to 9 The described assignment information component is executed.

[0213] At 1410, the first device may receive a downlink transmission from the batch of downlink transmissions from the second device. 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 described downlink transmission components are performed.

[0214] At 1415, the first device may construct a codebook associated with processing batch-based feedback based on the assignment information and the downlink transmission. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed as described with reference to Figures 6 to 9 The described codebook construction component is performed. +

[0215] At 1420, the first device may determine, based on the codebook, an acknowledgement feedback for the downlink transmission. The operations of 1420 may be performed according to the methods described herein. In some examples, aspects of the operations of 1420 may be as described in reference to Figures 6 to 9 The described acknowledgement feedback component is performed.

[0216] At 1425, the first device may transmit the acknowledgement feedback to the second device. The operations of 1425 may be performed according to the methods described herein. In some examples, aspects of the operations of 1425 may be performed as described with reference to Figures 6 to 9 The described feedback transmission component is performed.

[0217] Fig.15 1 is a flow chart illustrating a method 1500 for supporting batch-based feedback in NR according to aspects of the present disclosure. The operations of the method 1500 may be implemented by a UE 115 or components thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or components thereof as described herein. Figures 6 to 9In some examples, a first device (e.g., UE 115) may execute an instruction set to control functional elements of the first device to perform the functions described herein. Additionally or alternatively, the first device may use dedicated hardware to perform various aspects of the functions described herein.

[0218] At 1505, the first device may receive downlink control information from the second device. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 6 to 9 The described downlink control information component is performed.

[0219] At 1510, the first device may determine a batch assignment index counter based on receiving downlink control information. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 6 to 9 The described codebook construction component is performed. +

[0220] At 1515, the first device may identify a bit width associated with a batch assignment index counter based on receiving downlink control information. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figures 6 to 9 The described bit width components are implemented.

[0221] At 1520, the first device may determine a mapping between an index associated with a downlink transmission and a bit width value associated with a batch assignment index counter. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be as described with reference to Figures 6 to 9 The described mapping components are performed.

[0222] At 1525, the first device may construct a codebook associated with processing batch-based feedback based on the mapping and the downlink transmission. The operations of 1525 may be performed according to the methods described herein. In some examples, aspects of the operations of 1525 may be as described with reference to Figures 6 to 9 The described codebook construction component is performed. +

[0223] At 1530, the first device may determine, based on the codebook, an acknowledgement feedback for the downlink transmission. The operations of 1530 may be performed according to the methods described herein. In some examples, aspects of the operations of 1530 may be as described in reference to Figures 6 to 9 The described acknowledgement feedback component is performed.

[0224] At 1535, the first device may transmit the acknowledgement feedback to the second device. The operations of 1535 may be performed according to the methods described herein. In some examples, aspects of the operations of 1535 may be performed as described with reference to Figures 6 to 9 The described feedback transmission component is performed.

[0225] At 1540, the first device may use the assignment information for processing batch-based feedback to include a batch assignment index counter, a total batch assignment index, or both. The operations of 1540 may be performed according to the methods described herein. In some examples, aspects of the operations of 1540 may be described as described with reference to Figures 6 to 9 The described assignment information component is executed.

[0226] Fig.16 A flow chart illustrating a method 1600 for supporting batch-based feedback in NR according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein, or a UE 115 or components thereof as described herein. For example, the operations of the method 1600 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the second device (e.g., base station 105) may execute an instruction set to control the functional elements of the second device to perform the functions described herein. Additionally or alternatively, the second device may use dedicated hardware to perform various aspects of the functions described herein.

[0227] At 1605, the second device may determine assignment information for processing batch-based feedback for a batch of downlink transmissions that are configured to be processed together by the first device. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be performed as described with reference to Figures 10 to 13 The described assignment information component is executed.

[0228] At 1610, the second device may transmit the assignment information and a downlink transmission from the batch of downlink transmissions to the first device. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed as described with reference to Figures 10 to 13 The described downlink transmission components are performed.

[0229] At 1615, the second device may receive, from the first device, an acknowledgment feedback for the transmitted downlink transmission, wherein the acknowledgment feedback is based on a codebook associated with the assignment information for processing batch-based feedback. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 10 to 13 The described acknowledgement feedback component is performed.

[0230] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0231] The technology described herein can be used in various wireless communication systems, such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA) and other systems. CDMA systems can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions are generally referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is generally referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. TDMA systems can implement radio technologies such as Global System for Mobile Communications (GSM).

[0232] OFDMA systems can implement radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunications System (UMTS). LTE, LTE-A, and LTE-A Pro are versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, LTE-A Pro, NR, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein may be used for systems and radio technologies mentioned herein as well as for other systems and radio technologies. 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 applications other than LTE, LTE-A, LTE-A Pro, or NR applications.

[0233] A macro cell generally covers a relatively large geographic area (e.g., a radius of several kilometers) and may allow unrestricted access by UEs with service subscriptions to a network provider. A small cell may be associated with a lower power base station (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed, etc.) frequency band as the macro cell. According to various examples, a small cell may include a pico cell, a femto cell, and a micro cell. A pico cell, for example, may cover a smaller geographic area and may allow unrestricted access by UEs with service subscriptions to a network provider. A femto cell may also cover a smaller geographic area (e.g., a residence) and may provide restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG), UEs of users in the residence, etc.). An eNB for a macro cell may be referred to as a macro eNB. An eNB for a small cell may be referred to as a small cell eNB, a pico eNB, a femto eNB, or a home eNB. An eNB may support one or more (eg, two, three, four, etc.) cells and may also support communications using one or more CCs.

[0234] The wireless communication systems described herein may support synchronous or asynchronous operation. For synchronous operation, each base station may have similar frame timing, and transmissions from different base stations may be roughly aligned in time. For asynchronous operation, each base station may have different frame timing, and transmissions from different base stations may not be aligned in time. The techniques described herein may be used for synchronous or asynchronous operation.

[0235] 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.

[0236] The various illustrative blocks and modules described in conjunction with the disclosure herein may be implemented or executed with a general purpose processor, a DSP, an ASIC, 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 an alternative, the processor may be any conventional 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).

[0237] 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.

[0238] 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 the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of 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.

[0239] 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 exemplary 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."

[0240] 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.

[0241] 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 "exemplary" 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, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0242] The description herein is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to those skilled 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 first device, comprising: determining assignment information for processing batch-based feedback for a batch of downlink transmissions comprising a group of data packets, wherein the batch of downlink transmissions is based at least in part on respective delivery deadlines, each respective delivery deadline being based at least in part on a respective delay budget associated with each data packet and a respective arrival time associated with each data packet at the first device, and wherein the batch of downlink transmissions is to be processed together by the first device; receiving, from a second device, a downlink transmission from the batch of downlink transmissions; constructing a codebook associated with processing the batch-based feedback based at least in part on the assignment information and the downlink transmission; determining, based at least in part on the codebook, acknowledgment feedback for the downlink transmission; as well as The acknowledgement feedback is transmitted to the second device. 2 . The method of claim 1 , wherein the assignment information used to process the batch-based feedback comprises a batch assignment index counter, a total batch assignment index, or both.

3. The method of claim 2, wherein determining the assignment information comprises: receiving downlink control information from the second device; as well as The batch assignment index counter is determined based at least in part on receiving the downlink control information, wherein constructing the codebook is based at least in part on determining the batch assignment index counter.

4. The method of claim 3, further comprising: identifying a bit width associated with the batch assignment index counter based at least in part on receiving the downlink control information; as well as A mapping between an index associated with the downlink transmission and a bit width value associated with the batch assignment index counter is determined, wherein constructing the codebook is based at least in part on determining the mapping.

5. The method of claim 4, wherein determining the mapping further comprises: A first index associated with the first downlink transmission and a second index associated with the second downlink transmission are determined to be mapped to the same bit width value, wherein constructing the codebook is based at least in part on determining the mapping.

6. The method of claim 4, wherein the bit width associated with the batch assignment index counter is based at least in part on a format associated with the downlink control information.

7. The method of claim 6, wherein the format associated with the downlink control information comprises fallback downlink control information.

8. The method of claim 7, wherein the fallback downlink control information comprises a single bit.

9. The method of claim 6, wherein the format associated with the downlink control information comprises non-fallback downlink control information.

10. The method of claim 9, wherein the non-fallback downlink control information comprises two bits.

11. The method of claim 2, wherein determining the assignment information further comprises: receiving downlink control information from the second device, the downlink control information indicating a total number of downlink transmissions included in the batch of downlink transmissions; as well as The overall batch assignment index is determined based at least in part on receiving the downlink control information, wherein constructing the codebook is based at least in part on identifying the overall batch assignment index.

12. The method of claim 11, further comprising: A bit width associated with the overall batch assignment index is identified based at least in part on receiving the downlink control information, wherein constructing the codebook is based at least in part on identifying the bit width associated with the overall batch assignment index.

13. The method of claim 12, wherein the bit width associated with the total batch assignment index is the same as the number of bits associated with uniquely identifying each of the total number of downlink transmissions.

14. The method of claim 12, wherein the bit width associated with the total batch assignment index is less than a number of bits associated with uniquely identifying each of the total number of downlink transmissions.

15. The method of claim 1, further comprising: receiving a second downlink transmission from the second device; as well as Determining, based at least in part on the assignment information, that the second downlink transmission is not included in the batch of downlink transmissions to be processed together by the first device, wherein constructing a codebook associated with processing the batch-based feedback is based at least in part on the determination.

16. The method of claim 15, wherein the assignment information comprises an entry in a batch assignment index counter indicating that the second downlink transmission is not included in the batch of downlink transmissions.

17. The method of claim 1, further comprising: determining second assignment information for processing the batch-based feedback for a second batch of downlink transmissions; receiving a second downlink transmission from the second device; as well as and determining, based at least in part on the second assignment information, that the second downlink transmission is included in the second batch of downlink transmissions to be processed together by the first device, wherein constructing the codebook associated with processing the batch-based feedback is based at least in part on determining that the second downlink transmission is included in the second batch of downlink transmissions.

18. The method of claim 1, further comprising: Determining that the first device is configured to process batch-based transmissions is based at least in part on determining the assignment information for processing the batch-based feedback, wherein constructing the codebook associated with processing the batch-based feedback is based at least in part on the determination.

19. The method of claim 1, wherein the assignment information for processing the batch-based feedback is configured for each device associated with the second device, or each CC associated with the first device, or a combination thereof.

20. The method of claim 1, further comprising: determining second assignment information for non-batch based feedback for a second batch of downlink transmissions, wherein the non-batch based feedback comprises code block group based feedback, non-group based feedback, or a combination thereof; receiving, from the second device, a second downlink transmission from the second batch of downlink transmissions; as well as A second codebook associated with the non-batch based feedback is constructed based at least in part on the second assignment information.

21. The method of claim 20, wherein the second assignment information for the non-batch-based feedback comprises the assignment information for processing the batch-based feedback.

22. The method of claim 1, further comprising: and determining to enable a code block group for a first component carrier associated with the batch of downlink transmissions and to disable the code block group for a second component carrier associated with the batch of downlink transmissions, wherein constructing the codebook associated with processing the batch-based feedback is based at least in part on determining to enable the code block group for the first component carrier associated with the batch of downlink transmissions and to disable the code block group for the second component carrier associated with the batch of downlink transmissions.

23. The method of claim 1, further comprising: receiving, from the second device, a second downlink transmission from the batch of downlink transmissions; as well as Determining second acknowledgment feedback for the second downlink transmission, wherein transmitting the acknowledgment feedback further comprises transmitting the second acknowledgment feedback.

24. The method of claim 1, further comprising: receiving, from the second device, a second downlink transmission from the batch of downlink transmissions; as well as Negative acknowledgment feedback is transmitted, the negative acknowledgment feedback indicating negative acknowledgment feedback for at least one downlink transmission in the batch of downlink transmissions.

25. The method of claim 1, further comprising: receiving downlink control information from the second device; receiving, at least in part, the downlink control information to determine a batch index; as well as Second assignment information for processing the batch-based feedback for a second batch of downlink transmissions is determined based at least in part on the batch index, wherein the batch of downlink transmissions and the second batch of downlink transmissions at least partially overlap in time.

26. An apparatus for wireless communication at a first device, comprising: processor; a memory coupled to the processor; as well as instructions stored in the memory and executable by the processor, the instructions causing the apparatus to: determining assignment information for processing batch-based feedback for a batch of downlink transmissions comprising a group of data packets, wherein the batch of downlink transmissions is based at least in part on respective delivery deadlines, each respective delivery deadline being based at least in part on a respective delay budget associated with each data packet and a respective arrival time associated with each data packet at the first device, and wherein the batch of downlink transmissions is to be processed together by the first device; receiving, from a second device, a downlink transmission from the batch of downlink transmissions; constructing a codebook associated with processing the batch-based feedback based at least in part on the assignment information and the downlink transmission; determining, based at least in part on the codebook, acknowledgment feedback for the downlink transmission; as well as The acknowledgement feedback is transmitted to the second device.

27. The apparatus of claim 26, wherein the assignment information used to process the batch-based feedback comprises a batch assignment index counter, a total batch assignment index, or both.

28. The apparatus of claim 27, wherein the instructions for determining the assignment information are further executable by the processor to cause the apparatus to: receiving downlink control information from the second device; and The batch assignment index counter is determined based at least in part on receiving the downlink control information, wherein constructing the codebook is based at least in part on determining the batch assignment index counter.

29. The apparatus of claim 28, wherein the instructions are further executable by the processor to cause the apparatus to: identifying a bit width associated with the batch assignment index counter based at least in part on receiving the downlink control information; and A mapping between an index associated with the downlink transmission and a bit width value associated with the batch assignment index counter is determined, wherein constructing the codebook is based at least in part on determining the mapping.

30. The apparatus of claim 29, wherein the instructions for determining the mapping are further executable by the processor to cause the apparatus to: A first index associated with the first downlink transmission and a second index associated with the second downlink transmission are determined to be mapped to the same bit width value, wherein constructing the codebook is based at least in part on determining the mapping.

31. The apparatus of claim 29, wherein the bit width associated with the batch assignment index counter is based at least in part on a format associated with the downlink control information.

32. The apparatus of claim 31, wherein the format associated with the downlink control information comprises fallback downlink control information.

33. The apparatus of claim 32, wherein the fallback downlink control information comprises a single bit.

34. The apparatus of claim 31, wherein the format associated with the downlink control information comprises non-fallback downlink control information.

35. The apparatus of claim 34, wherein the non-fallback downlink control information comprises two bits.

36. The apparatus of claim 27, wherein the instructions for determining the assignment information are further executable by the processor to cause the apparatus to: receiving downlink control information from the second device, the downlink control information indicating a total number of downlink transmissions included in the batch of downlink transmissions; and The overall batch assignment index is determined based at least in part on receiving the downlink control information, wherein constructing the codebook is based at least in part on identifying the overall batch assignment index.

37. The apparatus of claim 36, wherein the instructions are further executable by the processor to cause the apparatus to: A bit width associated with the overall batch assignment index is identified based at least in part on receiving the downlink control information, wherein constructing the codebook is based at least in part on identifying the bit width associated with the overall batch assignment index.

38. The apparatus of claim 37, wherein the bit width associated with the total batch assignment index is the same as the number of bits associated with uniquely identifying each downlink transmission of the total number of downlink transmissions.

39. The apparatus of claim 37, wherein the bit width associated with the total batch assignment index is less than a number of bits associated with uniquely identifying each of the total number of downlink transmissions.

40. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: receiving a second downlink transmission from the second device; and Determining, based at least in part on the assignment information, that the second downlink transmission is not included in the batch of downlink transmissions to be processed together by the first device, wherein constructing a codebook associated with processing the batch-based feedback is based at least in part on the determination.

41. The apparatus of claim 40, wherein the assignment information comprises an entry in a batch assignment index counter indicating that the second downlink transmission is not included in the batch of downlink transmissions.

42. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: determining second assignment information for processing the batch-based feedback for a second batch of downlink transmissions; receiving a second downlink transmission from the second device; and and determining, based at least in part on the second assignment information, that the second downlink transmission is included in the second batch of downlink transmissions to be processed together by the first device, wherein constructing the codebook associated with processing the batch-based feedback is based at least in part on determining that the second downlink transmission is included in the second batch of downlink transmissions.

43. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: Determining that the first device is configured to process batch-based transmissions is based at least in part on determining the assignment information for processing the batch-based feedback, wherein constructing the codebook associated with processing the batch-based feedback is based at least in part on the determination.

44. The apparatus of claim 26, wherein the assignment information for processing the batch-based feedback is configured for each device associated with the second device, or each CC associated with the first device, or a combination thereof.

45. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: determining second assignment information for non-batch based feedback for a second batch of downlink transmissions, wherein the non-batch based feedback comprises code block group based feedback, non-group based feedback, or a combination thereof; receiving, from the second device, a second downlink transmission from the second batch of downlink transmissions; as well as A second codebook associated with the non-batch based feedback is constructed based at least in part on the second assignment information.

46. ​​The apparatus of claim 45, wherein the second assignment information for the non-batch-based feedback comprises the assignment information for processing the batch-based feedback.

47. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: and determining to enable a code block group for a first component carrier associated with the batch of downlink transmissions and to disable the code block group for a second component carrier associated with the batch of downlink transmissions, wherein constructing the codebook associated with processing the batch-based feedback is based at least in part on determining to enable the code block group for the first component carrier associated with the batch of downlink transmissions and to disable the code block group for the second component carrier associated with the batch of downlink transmissions.

48. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: receiving, from the second device, a second downlink transmission from the batch of downlink transmissions; and Determining second acknowledgment feedback for the second downlink transmission, wherein transmitting the acknowledgment feedback further comprises transmitting the second acknowledgment feedback.

49. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: receiving, from the second device, a second downlink transmission from the batch of downlink transmissions; and Negative acknowledgment feedback is transmitted, the negative acknowledgment feedback indicating negative acknowledgment feedback for at least one downlink transmission in the batch of downlink transmissions.

50. The apparatus of claim 26, wherein the instructions are further executable by the processor to cause the apparatus to: receiving downlink control information from the second device; receiving, at least in part, the downlink control information to determine a batch index; and Second assignment information for processing the batch-based feedback for a second batch of downlink transmissions is determined based at least in part on the batch index, wherein the batch of downlink transmissions and the second batch of downlink transmissions at least partially overlap in time.

51. An apparatus for wireless communication at a first device, comprising: means for determining assignment information for processing batch-based feedback for a batch of downlink transmissions comprising a group of data packets, wherein the batch of downlink transmissions is based at least in part on respective delivery deadlines, each respective delivery deadline being based at least in part on a respective delay budget associated with each data packet and a respective arrival time associated with each data packet at the first device, and wherein the batch of downlink transmissions is to be processed together by the first device; means for receiving, from a second device, a downlink transmission from the batch of downlink transmissions; means for constructing a codebook associated with processing the batch-based feedback based at least in part on the assignment information and the downlink transmission; means for determining, based at least in part on the codebook, acknowledgment feedback for the downlink transmission; as well as means for transmitting the acknowledgement feedback to the second device.

52. A non-transitory computer-readable medium storing code for wireless communication at a first device, the code comprising instructions executable by a processor to: determining assignment information for processing batch-based feedback for a batch of downlink transmissions comprising a group of data packets, wherein the batch of downlink transmissions is based at least in part on respective delivery deadlines, each respective delivery deadline being based at least in part on a respective delay budget associated with each data packet and a respective arrival time associated with each data packet at the first device, and wherein the batch of downlink transmissions is to be processed together by the first device; receiving, from a second device, a downlink transmission from the batch of downlink transmissions; constructing a codebook associated with processing the batch-based feedback based at least in part on the assignment information and the downlink transmission; determining, based at least in part on the codebook, acknowledgment feedback for the downlink transmission; as well as The acknowledgement feedback is transmitted to the second device.

Images