WO2022029728A1

WO2022029728A1 - Multiplexing hybrid automatic repeat request acknowledgment information

Info

Publication number: WO2022029728A1
Application number: PCT/IB2021/057291
Authority: WO
Inventors: Hyejung Jung; Vijay Nangia; Hossein Bagheri
Original assignee: Lenovo (Singapore) Pte. Ltd.
Priority date: 2020-08-07
Filing date: 2021-08-06
Publication date: 2022-02-10

Abstract

Apparatuses, methods, and systems are disclosed for multiplexing HARQ-ACK information. One method (700) includes receiving (702), at a user equipment, first scheduling information for a PUSCH transmission in a slot. The method (700) includes receiving (704) second scheduling information for a PUCCH transmission in a sub-slot of the slot. The PUCCH transmission includes HARQ-ACK information and the PUSCH transmission at least partially overlaps in time with the PUCCH transmission in the sub-slot. The method (700) includes determining (706) an earliest available symbol of a part of the PUSCH transmission. The part of the PUSCH transmission includes a subset of symbols of the PUSCH transmission. The method (700) includes multiplexing (708) the HARQ-ACK information scheduled to be transmitted in the PUCCH transmission in the sub-slot into the PUSCH transmission based on the earliest available symbol of the part of the PUSCH transmission.

Description

MULTIPLEXING HYBRID AUTOMATIC REPEAT REQUEST ACKNOWLEDGMENT

INFORMATION

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims priority to United States Patent Application Serial Number 63/063,134 entitled “APPARATUSES, METHODS, AND SYSTEMS FOR ENHANCED UPLINK CONTROL INFORMATION MULTIPLEXING FOR URLLC” and filed on August 7, 2020 for Hyejung Jung, which is incorporated herein by reference in its entirety.

FIELD

[0002] The subject matter disclosed herein relates generally to wireless communications and more particularly relates to multiplexing hybrid automatic repeat request acknowledgment information.

BACKGROUND

[0003] In certain wireless communications networks, uplink data may interfere with uplink control information. In such networks, the interfering data may cause loss of data and/or control information.

BRIEF SUMMARY

[0004] Methods for multiplexing hybrid automatic repeat request acknowledgment information are disclosed. Apparatuses and systems also perform the functions of the methods. One embodiment of a method includes receiving, at a user equipment, first scheduling information for a physical uplink shared channel transmission in a slot. In some embodiments, the method includes receiving second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In certain embodiments, the method includes determining an earliest available symbol of a part of the physical uplink shared channel transmission. The part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission. In various embodiments, the method includes multiplexing the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission. [0005] One apparatus for multiplexing hybrid automatic repeat request acknowledgment information includes a user equipment. In some embodiments, the apparatus includes a receiver that: receives first scheduling information for a physical uplink shared channel transmission in a slot; and receives second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In various embodiments, the apparatus includes a processor that: determines an earliest available symbol of a part of the physical uplink shared channel transmission, wherein the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission; and multiplexes the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0006] Another embodiment of a method for multiplexing hybrid automatic repeat request acknowledgment information includes transmitting, from a network device, first scheduling information for a physical uplink shared channel transmission in a slot. In some embodiments, the method includes transmitting second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In certain embodiments, an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0007] Another apparatus for multiplexing hybrid automatic repeat request acknowledgment information includes a network device. In some embodiments, the apparatus includes a transmitter that: transmits first scheduling information for a physical uplink shared channel transmission in a slot; and transmits second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In various embodiments, an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

[0008] A more particular description of the embodiments briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only some embodiments and are not therefore to be considered to be limiting of scope, the embodiments will be described and explained with additional specificity and detail through the use of the accompanying drawings, in which:

[0009] Figure 1 is a schematic block diagram illustrating one embodiment of a wireless communication system for multiplexing hybrid automatic repeat request acknowledgment information;

[0010] Figure 2 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for multiplexing hybrid automatic repeat request acknowledgment information;

[0011] Figure 3 is a schematic block diagram illustrating one embodiment of an apparatus that may be used for multiplexing hybrid automatic repeat request acknowledgment information;

[0012] Figure 4 is a timing diagram illustrating one embodiment of communications for multiplexing hybrid automatic repeat request acknowledgment information;

[0013] Figure 5 is a timing block diagram illustrating another embodiment of communications for multiplexing hybrid automatic repeat request acknowledgment information;

[0014] Figure 6 is a timing block diagram illustrating a further embodiment of communications for multiplexing hybrid automatic repeat request acknowledgment information;

[0015] Figure 7 is a flow chart diagram illustrating one embodiment of a method for multiplexing hybrid automatic repeat request acknowledgment information; and

[0016] Figure 8 is a flow chart diagram illustrating another embodiment of a method for multiplexing hybrid automatic repeat request acknowledgment information.

DETAILED DESCRIPTION

[0017] As will be appreciated by one skilled in the art, aspects of the embodiments may be embodied as a system, apparatus, method, or program product. Accordingly, embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc.) or an embodiment combining software and hardware aspects that may all generally be referred to herein as a “circuit,” “module” or “system.” Furthermore, embodiments may take the form of a program product embodied in one or more computer readable storage devices storing machine readable code, computer readable code, and/or program code, referred hereafter as code. The storage devices may be tangible, non-transitory, and/or non-transmission. The storage devices may not embody signals. In a certain embodiment, the storage devices only employ signals for accessing code.

[0018] Certain of the functional units described in this specification may be labeled as modules, in order to more particularly emphasize their implementation independence. For example, a module may be implemented as a hardware circuit comprising custom very-large-scale integration (“VLSI”) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

[0019] Modules may also be implemented in code and/or software for execution by various types of processors. An identified module of code may, for instance, include one or more physical or logical blocks of executable code which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may include disparate instructions stored in different locations which, when joined logically together, include the module and achieve the stated purpose for the module.

[0020] Indeed, a module of code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Similarly, operational data may be identified and illustrated herein within modules, and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different computer readable storage devices. Where a module or portions of a module are implemented in software, the software portions are stored on one or more computer readable storage devices.

[0021] Any combination of one or more computer readable medium may be utilized. The computer readable medium may be a computer readable storage medium. The computer readable storage medium may be a storage device storing the code. The storage device may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.

[0022] More specific examples (a non-exhaustive list) of the storage device would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (“RAM”), a read-only memory (“ROM”), an erasable programmable read-only memory (“EPROM” or Flash memory), a portable compact disc readonly memory (“CD-ROM”), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.

[0023] Code for carrying out operations for embodiments may be any number of lines and may be written in any combination of one or more programming languages including an object oriented programming language such as Python, Ruby, Java, Smalltalk, C++, or the like, and conventional procedural programming languages, such as the "C" programming language, or the like, and/or machine languages such as assembly languages. The code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a local area network (“LAN”) or a wide area network (“WAN”), or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider).

[0024] Reference throughout this specification to “one embodiment,” “an embodiment,” or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in one embodiment,” “in an embodiment,” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment, but mean “one or more but not all embodiments” unless expressly specified otherwise. The terms “including,” “comprising,” “having,” and variations thereof mean “including but not limited to,” unless expressly specified otherwise. An enumerated listing of items does not imply that any or all of the items are mutually exclusive, unless expressly specified otherwise. The terms “a,” “an,” and “the” also refer to “one or more” unless expressly specified otherwise.

[0025] Furthermore, the described features, structures, or characteristics of the embodiments may be combined in any suitable manner. In the following description, numerous specific details are provided, such as examples of programming, software modules, user selections, network transactions, database queries, database structures, hardware modules, hardware circuits, hardware chips, etc., to provide a thorough understanding of embodiments. One skilled in the relevant art will recognize, however, that embodiments may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of an embodiment.

[0026] Aspects of the embodiments are described below with reference to schematic flowchart diagrams and/or schematic block diagrams of methods, apparatuses, systems, and program products according to embodiments. It will be understood that each block of the schematic flowchart diagrams and/or schematic block diagrams, and combinations of blocks in the schematic flowchart diagrams and/or schematic block diagrams, can be implemented by code. The code may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks.

[0027] The code may also be stored in a storage device that can direct a computer, other programmable data processing apparatus, or other devices to function in a particular manner, such that the instructions stored in the storage device produce an article of manufacture including instructions which implement the function/act specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks.

[0028] The code may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the code which execute on the computer or other programmable apparatus provide processes for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks.

[0029] The schematic flowchart diagrams and/or schematic block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of apparatuses, systems, methods and program products according to various embodiments. In this regard, each block in the schematic flowchart diagrams and/or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing the specified logical function(s). [0030] It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the Figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. Other steps and methods may be conceived that are equivalent in function, logic, or effect to one or more blocks, or portions thereof, of the illustrated Figures.

[0031] Although various arrow types and line types may be employed in the flowchart and/or block diagrams, they are understood not to limit the scope of the corresponding embodiments. Indeed, some arrows or other connectors may be used to indicate only the logical flow of the depicted embodiment. For instance, an arrow may indicate a waiting or monitoring period of unspecified duration between enumerated steps of the depicted embodiment. It will also be noted that each block of the block diagrams and/or flowchart diagrams, and combinations of blocks in the block diagrams and/or flowchart diagrams, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and code.

[0032] The description of elements in each figure may refer to elements of proceeding figures. Like numbers refer to like elements in all figures, including alternate embodiments of like elements.

[0033] Figure 1 depicts an embodiment of a wireless communication system 100 for multiplexing hybrid automatic repeat request acknowledgment information. In one embodiment, the wireless communication system 100 includes remote units 102 and network units 104. Even though a specific number of remote units 102 and network units 104 are depicted in Figure 1, one of skill in the art will recognize that any number of remote units 102 and network units 104 may be included in the wireless communication system 100.

[0034] In one embodiment, the remote units 102 may include computing devices, such as desktop computers, laptop computers, personal digital assistants (“PDAs”), tablet computers, smart phones, smart televisions (e.g., televisions connected to the Internet), set-top boxes, game consoles, security systems (including security cameras), vehicle on-board computers, network devices (e.g., routers, switches, modems), aerial vehicles, drones, or the like. In some embodiments, the remote units 102 include wearable devices, such as smart watches, fitness bands, optical head-mounted displays, or the like. Moreover, the remote units 102 may be referred to as subscriber units, mobiles, mobile stations, users, terminals, mobile terminals, fixed terminals, subscriber stations, UE, user terminals, a device, or by other terminology used in the art. The remote units 102 may communicate directly with one or more of the network units 104 via UL communication signals. In certain embodiments, the remote units 102 may communicate directly with other remote units 102 via sidelink communication.

[0035] The network units 104 may be distributed over a geographic region. In certain embodiments, a network unit 104 may also be referred to and/or may include one or more of an access point, an access terminal, a base, a base station, a location server, a core network (“CN”), a radio network entity, a Node-B, an evolved node-B (“eNB”), a 5G node-B (“gNB”), a Home Node-B, a relay node, a device, a core network, an aerial server, a radio access node, an access point (“AP”), new radio (“NR”), a network entity, an access and mobility management function (“AMF”), a unified data management (“UDM”), a unified data repository (“UDR”), a UDM/UDR, a policy control function (“PCF”), a radio access network (“RAN”), a network slice selection function (“NSSF”), an operations, administration, and management (“0AM”), a session management function (“SMF”), a user plane function (“UPF”), an application function, an authentication server function (“AUSF”), security anchor functionality (“SEAF”), trusted non- 3GPP gateway function (“TNGF”), or by any other terminology used in the art. The network units 104 are generally part of a radio access network that includes one or more controllers communicably coupled to one or more corresponding network units 104. The radio access network is generally communicably coupled to one or more core networks, which may be coupled to other networks, like the Internet and public switched telephone networks, among other networks. These and other elements of radio access and core networks are not illustrated but are well known generally by those having ordinary skill in the art.

[0036] In one implementation, the wireless communication system 100 is compliant with NR protocols standardized in third generation partnership project (“3GPP”), wherein the network unit 104 transmits using an OFDM modulation scheme on the downlink (“DL”) and the remote units 102 transmit on the uplink (“UL”) using a single-carrier frequency division multiple access (“SC-FDMA”) scheme or an orthogonal frequency division multiplexing (“OFDM”) scheme. More generally, however, the wireless communication system 100 may implement some other open or proprietary communication protocol, for example, WiMAX, institute of electrical and electronics engineers (“IEEE”) 802.11 variants, global system for mobile communications (“GSM”), general packet radio service (“GPRS”), universal mobile telecommunications system (“UMTS”), long term evolution (“LTE”) variants, code division multiple access 2000 (“CDMA2000”), Bluetooth®, ZigBee, Sigfoxx, among other protocols. The present disclosure is not intended to be limited to the implementation of any particular wireless communication system architecture or protocol. [0037] The network units 104 may serve a number of remote units 102 within a serving area, for example, a cell or a cell sector via a wireless communication link. The network units 104 transmit DL communication signals to serve the remote units 102 in the time, frequency, and/or spatial domain.

[0038] In various embodiments, a remote unit 102 may receive, at a user equipment, first scheduling information for a physical uplink shared channel transmission in a slot. In some embodiments, the remote unit 102 may receive second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In certain embodiments, the remote unit 102 may determine an earliest available symbol of a part of the physical uplink shared channel transmission. The part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission. In various embodiments, the remote unit 102 may multiplex the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission. Accordingly, the remote unit 102 may be used for multiplexing hybrid automatic repeat request acknowledgment information.

[0039] In certain embodiments, a network unit 104 may transmit, from a network device, first scheduling information for a physical uplink shared channel transmission in a slot. In some embodiments, the network unit 104 may transmit second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In certain embodiments, an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission. Accordingly, the network unit 104 may be used for multiplexing hybrid automatic repeat request acknowledgment information. [0040] Figure 2 depicts one embodiment of an apparatus 200 that may be used for multiplexing hybrid automatic repeat request acknowledgment information. The apparatus 200 includes one embodiment of the remote unit 102. Furthermore, the remote unit 102 may include a processor 202, a memory 204, an input device 206, a display 208, a transmitter 210, and a receiver 212. In some embodiments, the input device 206 and the display 208 are combined into a single device, such as a touchscreen. In certain embodiments, the remote unit 102 may not include any input device 206 and/or display 208. In various embodiments, the remote unit 102 may include one or more of the processor 202, the memory 204, the transmitter 210, and the receiver 212, and may not include the input device 206 and/or the display 208.

[0041] The processor 202, in one embodiment, may include any known controller capable of executing computer-readable instructions and/or capable of performing logical operations. For example, the processor 202 may be a microcontroller, a microprocessor, a central processing unit (“CPU”), a graphics processing unit (“GPU”), an auxiliary processing unit, a field programmable gate array (“FPGA”), or similar programmable controller. In some embodiments, the processor 202 executes instructions stored in the memory 204 to perform the methods and routines described herein. The processor 202 is communicatively coupled to the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212.

[0042] The memory 204, in one embodiment, is a computer readable storage medium. In some embodiments, the memory 204 includes volatile computer storage media. For example, the memory 204 may include a RAM, including dynamic RAM (“DRAM”), synchronous dynamic RAM (“SDRAM”), and/or static RAM (“SRAM”). In some embodiments, the memory 204 includes non-volatile computer storage media. For example, the memory 204 may include a hard disk drive, a flash memory, or any other suitable non-volatile computer storage device. In some embodiments, the memory 204 includes both volatile and non-volatile computer storage media. In some embodiments, the memory 204 also stores program code and related data, such as an operating system or other controller algorithms operating on the remote unit 102.

[0043] The input device 206, in one embodiment, may include any known computer input device including a touch panel, a button, a keyboard, a stylus, a microphone, or the like. In some embodiments, the input device 206 may be integrated with the display 208, for example, as a touchscreen or similar touch-sensitive display. In some embodiments, the input device 206 includes a touchscreen such that text may be input using a virtual keyboard displayed on the touchscreen and/or by handwriting on the touchscreen. In some embodiments, the input device 206 includes two or more different devices, such as a keyboard and a touch panel. [0044] The display 208, in one embodiment, may include any known electronically controllable display or display device. The display 208 may be designed to output visual, audible, and/or haptic signals. In some embodiments, the display 208 includes an electronic display capable of outputting visual data to a user. For example, the display 208 may include, but is not limited to, a liquid crystal display (“LCD”), a light emitting diode (“LED”) display, an organic light emitting diode (“OLED”) display, a projector, or similar display device capable of outputting images, text, or the like to a user. As another, non-limiting, example, the display 208 may include a wearable display such as a smart watch, smart glasses, a heads-up display, or the like. Further, the display 208 may be a component of a smart phone, a personal digital assistant, a television, a table computer, a notebook (laptop) computer, a personal computer, a vehicle dashboard, or the like.

[0045] In certain embodiments, the display 208 includes one or more speakers for producing sound. For example, the display 208 may produce an audible alert or notification (e.g., a beep or chime). In some embodiments, the display 208 includes one or more haptic devices for producing vibrations, motion, or other haptic feedback. In some embodiments, all or portions of the display 208 may be integrated with the input device 206. For example, the input device 206 and display 208 may form a touchscreen or similar touch-sensitive display. In other embodiments, the display 208 may be located near the input device 206.

[0046] In certain embodiments, the receiver 212: receives first scheduling information for a physical uplink shared channel transmission in a slot; and receives second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In various embodiments, the processor 202: determines an earliest available symbol of a part of the physical uplink shared channel transmission, wherein the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission; and multiplexes the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0047] Although only one transmitter 210 and one receiver 212 are illustrated, the remote unit 102 may have any suitable number of transmitters 210 and receivers 212. The transmitter 210 and the receiver 212 may be any suitable type of transmitters and receivers. In one embodiment, the transmitter 210 and the receiver 212 may be part of a transceiver.

[0048] Figure 3 depicts one embodiment of an apparatus 300 that may be used for multiplexing hybrid automatic repeat request acknowledgment information. The apparatus 300 includes one embodiment of the network unit 104. Furthermore, the network unit 104 may include a processor 302, a memory 304, an input device 306, a display 308, a transmitter 310, and a receiver 312. As may be appreciated, the processor 302, the memory 304, the input device 306, the display 308, the transmitter 310, and the receiver 312 may be substantially similar to the processor 202, the memory 204, the input device 206, the display 208, the transmitter 210, and the receiver 212 of the remote unit 102, respectively.

[0049] In certain embodiments, the transmitter 310: transmits first scheduling information for a physical uplink shared channel transmission in a slot; and transmits second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In various embodiments, an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0050] In certain embodiments, a user equipment (“UE”) may be configured with a subslot based hybrid automatic repeat request (“HARQ”) acknowledgement (“ACK”) (“HARQ- ACK”) feedback procedure to support low latency HARQ-ACK feedback for enhanced ultrareliable and low-latency communication (“URLLC”). For the sub-slot based HARQ-ACK feedback, the UE receives sub-slot configuration information comprising a sub-slot duration, and performs at most one HARQ-ACK transmission per sub-slot.

[0051] In some embodiments, only slot-based HARQ-ACK feedback (e.g., at most one HARQ-ACK transmission per slot) may be allowed. In such embodiments, a UE performs multiplexing of uplink control information including HARQ-ACK information into a physical uplink shared channel (“PUSCH”) transmission based on the slot-based HARQ-ACK feedback framework. [0052] In various embodiments, uplink control information (“UCI”) may be multiplexed to include sub-slot based HARQ-ACK feedback information in a PUSCH transmission.

[0053] In certain embodiments, according to 3GPP TS 38.212, the number of resource elements for HARQ-ACK transmission on PUSCH is determined as shown below. For 0, 1, or 2 HARQ-ACK bits, a resulting UCI bit sequence consisting of only the HARQ-ACK bits are mapped to 1 or 3 modulation symbols for 1 bit and 2 bits, respectively.

[0054] In some embodiments, uplink control information may be transmitted on PUSCH.

[0055] In various embodiments, there may be a UCI bit sequence generation that may include HARQ-ACK.

[0056] In certain embodiments, if HARQ-ACK bits are transmitted on a PUSCH, the UCI bit sequence ^a0’^a1’^a2’^a3^,...,aA-1 determined as follows: 1) if UCI is transmitted on PUSCH without UU-SCH and the UCI includes CSI part 1 without CSI part 2; a) if there is no HARQ- ACK bit given, set ^a0 ^{= 0} , ^a1 ^{= 0} , and A = 2; b) if there is only one HARQ-ACK bit

given, set , ^a1 ^{= 0} , and A = 2 ; _c) otherwise, set

A = O^ACK , where the HARQ-ACK bit sequence is given.

[0057] In some embodiments, there may be rate matching.

[0058] In various embodiments, there may be UCI encoded by a polar code that may include HARQ-ACK.

[0059] In certain embodiments, for HARQ-ACK transmission on PUSCH with UU-SCH, the number of coded modulation symbols per layer for HARQ-ACK transmission, denoted as

. is determined as follows:

[0061] In such embodiments: ^OACK is the number of HARQ-ACK bits; if ^OACK ≥360 , LACK ^{= 11} ; otherwise ^LACK is the number of CRC bits for HARQ-ACK determined;

^CUL-SCH is the number of code blocks for UU-SCH of the PUSCH transmission; if the DCI format scheduling the PUSCH transmission includes a CBGTI field indicating that the UE shall not transmit the ^r -th code block, ^Kr=0; otherwise, ^Kr is the ^r -th code block size for UU-SCH of the PUSCH transmission;

is the scheduled bandwidth of the PUSCH transmission, expressed as a number of subcarriers;

is the number of subcarriers in OFDM symbol

that carries PTRS, in the PUSCH transmission;

is the number of resource elements that can be used for transmission of UCI in OFDM symbol I, for

puSCH transmission and

is the total number of OFDM symbols of the PUS CH, including all OFDM symbols used for DMRS; for any OFDM symbol that carries DMRS of the PUSCH,

; for any OFDM symbol that does not carry DMRS of the PUSCH,

is configured by higher layer parameter scaling; is the symbol index of the first OFDM symbol that does not carry DMRS of the PUSCH, after the first DMRS symbol(s), in the PUSCH transmission.

[0062] In some embodiments, for HARQ-ACK transmission on an actual repetition of a

PUSCH with repetition Type B with UU-SCH, the number of coded modulation symbols per layer for HARQ-ACK transmission, denoted as

is determined as follows:

[0064] In such embodiments: ) is the number of resource elements that can be

used for transmission of UCI in OFDM symbol I, for

in the PUSCH transmission assuming a nominal repetition without segmentation, and

is the total number of OFDM symbols in a nominal repetition of the PUSCH, including all OFDM symbols used for DMRS; for any OFDM symbol that carries DMRS of the PUSCH assuming a nominal repetition without segmentation, ; for any OFDM symbol that does not

carry DMRS of the PUSCH assuming a nominal repetition without segmentation,

is the number of subcarriers in OFDM symbol I that

carries PTRS, in the PUSCH transmission assuming a nominal repetition without segmentation;

is the number of resource elements that can be used for transmission of UCI in OFDM symbol I , in the actual repetition of the PUSCH transmission,

and is the total number of OFDM symbols in the actual repetition of the PUSCH

transmission, including all OFDM symbols used for DMRS; for any OFDM symbol that carries DMRS of the actual repetition of the PUSCH transmission,

for any OFDM symbol that does not carry DMRS of the actual repetition of the PUSCH transmission,

is the number of subcarriers in OFDM symbol that carries PTRS, in the actual repetition of the PUSCH transmission; and all the other notations in the formula are defined the same as for PUSCH not using repetition type B.

[0065] In various embodiments, for HARQ-ACK transmission on PUSCH without UU- SCH, the number of coded modulation symbols per layer for HARQ-ACK transmission, denoted as , is determined as follows:

[0066]

[0067] In such embodiments: ^OACK is the number of HARQ-ACK bits; if

, LACK ^{= 1} o¹the^,rwise L_ACK is the number of CRC bits for HARQ-ACK defined;

is the number of subcarriers in OFDM symbol that carries PTRS, in the

PUSCH transmission;

is the number of resource elements that can be used for transmission of UCI in OFDM symbol ', for

. in the PUSCH transmission and

is the total number of OFDM symbols of the PUSCH, including all OFDM symbols used for DMRS; for any OFDM symbol that carries DMRS of the PUSCH,

; for any OFDM symbol that does not carry DMRS of the PUSCH,

is the symbol index of the first OFDM symbol that does not carry DMRS of the PUSCH, after the first DMRS symbol(s), in the PUSCH transmission; is the code rate of the PUSCH;

is the modulation order of the PUSCH; ^α is configured by higher layer parameter scaling.

[0068] In certain embodiments, the input bit sequence to rate matching is

where ^r is the code block number, and ^N? is the number of coded bits in code block number

[0069] In some embodiments, rate matching is performed by setting

and the rate matching output sequence length to

, where:

is the number of code blocks for UCI; is the number of transmission layers of the PUSCH;

is the modulation order of the PUSCH;

[0070] In some embodiments, the output bit sequence after rate matching is denoted as ' is the length of rate matching output sequence in code block number

[0071] In various embodiments, UCI may be encoded by channel coding of small block lengths and may include HARQ-ACK.

[0072] In certain embodiments, for HARQ-ACK transmission on PUSCH, the number of coded modulation symbols per layer for HARQ-ACK transmission, denoted as

, by setting the number of CRC bits L = 0

[0073] In some embodiments, the input bit sequence to rate matching is

[0074] In various embodiments, rate matching is performed by setting the rate matching

output sequence length where: is the number of transmission layers of the

PUSCH; is the modulation order of the PUSCH.

[0075] In certain embodiments, the output bit sequence after rate matching is denoted as

[0076] In certain embodiments, for sub-slot based HARQ-ACK feedback procedure, a UE receives an indication of physical downlink shared channel (“PDSCH”)-to-HARQ-timing (e.g., denoted as KI) in terms of a number of sub-slots via a PDSCH-to-HARQ-timing-indicator field in a downlink control information (“DQ”) format and/or by a higher layer parameter (e.g., dl- DataToUL-ACK), where a sub-slot containing an end of PDSCH is ‘n’ and a sub-slot containing a start of a physical uplink control channel (“PUCCH”) is ‘n+K1, and a sub-slot grid is defined based on an uplink (“UL”) bandwidth part (“BWP”) subcarrier spacing and cyclic prefix (“CP”) length.

[0077] In some embodiments, a UE is dynamically scheduled or configured (e.g., based on a configured grant) to transmit a PUSCH transmission and also receives a first physical downlink control channel (“PDCCH”) transmission including downlink (“DL”) DCI (or detects a DL DCI format) that schedules a PDSCH transmission and a corresponding PUCCH transmission for sub-slot based HARQ-ACK feedback in a given sub-slot, where the PUSCH transmission overlaps in time partially or fully with the PUCCH transmission in the sub-slot. If a first symbol of the PUSCH transmission is not before a symbol with CP starting after a PUSCH transmission preparation time after a last symbol of the first PDCCH transmission including the DL DCI,

where the first symbol of the PUSCH transmission is a beginning symbol of the PUSCH transmission, and if a second symbol of the PUSCH transmission is not before a symbol with a CP starting after a PDSCH processing time

^ i after a last symbol of the PDSCH transmission, where the second symbol of the PUSCH transmission is a beginning symbol of a full or part of the PUSCH transmission within the sub-slot (e.g., earliest symbol of the PUSCH transmission that overlaps with the PUCCH transmission in the sub-slot), the UE multiplexes HARQ-ACK information bits scheduled to be transmitted on the PUCCH transmission in the sub-slot into the full or part of the PUSCH transmission within the sub-slot (e.g., at least one symbol of symbols of the PUSCH transmission that overlaps with the PUCCH transmission in the sub-slot) and does not transmit the PUCCH transmission. If the PUSCH transmission is scheduled by a second PDCCH transmission including UE DCI, the first symbol of the PUSCH transmission (e.g., the beginning symbol of the PUSCH transmission) is not before a symbol with CP starting after

after a last symbol of the second PDCCH transmission including the UL DCI.

[0078] In various embodiments, a PUSCH transmission and a PUCCH transmission may have the same priority, and UCI multiplexing may be enabled for overlapping PUCCH transmissions and PUSCH transmissions with the same priority. In certain embodiments, a PUSCH transmission is a high-priority PUSCH transmission and a PUCCH transmission is a low- priority since HARQ-ACK information for the PUCCH transmission corresponds to a low-priority HARQ-ACK codebook. In such embodiments, multiplexing of low-priority HARQ-ACK (and possibly low-priority scheduling resources (“SRs”)) into a high priority PUCCH transmission and/or a PUSCH transmission may be allowed and/or supported (e.g., based on UE capability).

[0079] In some embodiments, a first symbol of a PUSCH transmission is the same as a second symbol of the PUSCH transmission, where the PUSCH transmission starts within a subslot (e.g., beginning symbol of the PUSCH transmission overlaps with a symbol of the sub-slot). In various embodiments, a first symbol of a PUSCH transmission is different from a second symbol of the PUSCH transmission, where the PUSCH transmission starts earlier than the subslot (e.g., beginning symbol of the PUSCH transmission overlaps with a symbol before the beginning and/or starting symbol of the sub-slot).

[0080] In certain embodiments, a UE multiplexes HARQ-ACK information starting from a second symbol of a PUSCH transmission (e.g., a beginning symbol of a full or part of the PUSCH transmission within the sub-slot) or the earliest symbol not including a demodulation (“DM”) reference signal (“RS”) after a second symbol of the PUSCH transmission if the second symbol includes DM RS. One or more coded modulation symbols including the HARQ-ACK information may map to one or more resource elements in a frequency -domain first and time-domain second manner for early completion of a HARQ-ACK transmission.

[0081] In some embodiments, if a PUSCH transmission is a high-priority PUSCH transmission and the PUCCH transmission is low-priority, a UE determines whether to multiplex HARQ-ACK information (and possibly additionally SRs) based on a number of available symbols (e.g., a number of symbols without including DM RS (“DM-RS”)) in a full or part of a PUSCH transmission within a sub-slot.

[0082] In various embodiments, if a PUSCH transmission is a high-priority PUSCH transmission and a PUCCH transmission is a low -priority PUCCH transmission, a UE determines whether to multiplex HARQ-ACK information (and possibly additionally SRs) based on whether the HARQ-ACK information is for an initial transmission of a transport block (“TB”) or a re- transmission of a TB.

[0083] In certain embodiments, if a PUSCH transmission is a high-priority PUSCH transmission which does not include an UL shared channel (“SCH”) (e.g., containing only advanced (“A”) channel state information (“CSI”) (“A-CSI”)) and a PUCCH transmission is a low-priority PUCCH transmission, a UE determines whether to multiplex HARQ-ACK information (and possibly additionally SRs) based on a number of available symbols (e.g., a number of symbols without including DM-RS) in a full or part of the PUSCH transmission within the sub-slot.

[0084] In various embodiments, a UE determines whether to multiplex HARQ-ACK information (and possibly additionally SRs) based on whether a PUSCH transmission includes an UL-SCH (e.g., uplink data TB). In certain embodiments, a UE multiplexes HARQ-ACK information (and possibly additionally SRs) if a PUSCH transmission is a high priority PUSCH transmission and does not contain an UL-SCH (e.g., contains CSI only).

[0085] In certain embodiments, a UE inserts DM RS on a second symbol of a PUSCH transmission (e.g., a beginning symbol of a full or part of a PUSCH transmission within a sub-slot) upon determining to multiplex HARQ-ACK information (and/or other UCI), if a second symbol was not configured to carry DM RS based on a PUSCH DM RS configuration associated with the PUSCH transmission. The UE may further determine whether to insert the DM RS on the second symbol of the PUSCH transmission based on whether the symbols of the PUSCH transmission overlapping with the symbols of the sub-slot includes at least one configured DM RS symbol and/or based on a number of symbols between the second symbol and a closet DM RS symbol to the second symbol (e.g., that occurs earlier than the second symbol). For example, in Figure 6, if HARQ-ACK information in a PUCCH transmission 610 is multiplexed in a PUSCH transmission 608, the UE dynamically inserts DM RS 612 on the earliest symbol of a sub-slot.

[0086] In some embodiments, a UE computes a number of coded modulation symbols per layer for a HARQ-ACK transmission by including only symbols of a PUSCH transmission (e.g., including DM RS symbols) that are within a sub-slot if counting a number of resource elements that may be used for transmission of UCI.

[0087] In various embodiments, if a UE is dynamically scheduled or configured to transmit a PUSCH transmission and to transmit a PUCCH transmission for sub-slot based HARQ-ACK feedback in a given sub-slot, where the PUSCH transmission overlaps in time partially or fully with the PUCCH transmission in the sub-slot and if the PUSCH transmission and the PUCCH transmission are the same priority, the UE determines whether to multiplex HARQ-ACK in the PUSCH transmission or to cancel a transmission of the PUSCH transmission and transmit HARQ- ACK in the PUCCH transmission, based on an available resource of the PUSCH transmission within the sub-slot (e.g., a number of available symbols of the PUSCH transmission within the sub-slot (e.g., not including DM RS symbols) or a number of symbols of the PUSCH transmission (e.g., including DM RS symbols) that are within the sub-slot).

[0088] In certain embodiments, a UE does not expect to be configured with intra-slot frequency hopping of a PUSCH transmission, if the UE is configured with a sub-slot based HARQ- ACK feedback procedure. This may reduce DM RS overhead in the PUSCH transmission if a subslot based HARQ-ACK requires insertion of additional DM RS in the PUSCH transmission.

[0089] Figure 4 is a timing diagram 400 illustrating one embodiment of communications for multiplexing hybrid automatic repeat request acknowledgment information. The timing diagram 400 includes UL DCI 402 used to indicate a PUSCH transmission 404, and DL DCI 406 used to indicate a PDSCH transmission 408 which has a corresponding PUCCH transmission 410 (e.g., HARQ-ACK). The PUCCH transmission 410 may be multiplexed with the PUSCH transmission 404 after a PUSCH preparation time 412 and a PDSCH processing time 414.

[0090] In various embodiments, instead of and/or in addition to HARQ-ACK, CSI is multiplexed in a PUSCH transmission. In certain embodiments, CSI may be aperiodic CSI triggered by DL DCI and may be scheduled to be transmitted in a PUSCH transmission and/or a PUCCH transmission. In some embodiments, instead of a PDSCH processing time, a processing time that is related to CSI computation may be used. In various embodiments, instead of a PDSCH processing time, a processing time that is derived based on CSI computation and PDSCH processing time and/or PUSCH preparation time (e.g., maximum of PDSCH processing time and CSI computation time) may be used. [0091] In some embodiments, there may be a UE procedure for reporting multiple UCI types.

[0092] If a UE is provided subslotLength-ForPUCCH, and the UE would transmit multiple overlapping PUCCH transmissions in a sub-slot or overlapping PUCCH transmissions and PUSCH transmissions in a sub-slot and the UE may be configured to multiplex different UCI types in one PUCCH transmission, and at least one of the multiple overlapping PUCCH transmissions or PUSCH transmissions is in response to a DCI format detection by the UE, the UE multiplexes all corresponding UCI types if the following conditions are met. If one of the PUCCH transmissions or PUSCH transmissions is in response to a DCI format detection by the UE, the UE expects that the first symbol So of the earliest PUCCH transmission or PUSCH transmission and the first symbol Po of a full or part of the earliest PUCCH transmission or PUSCH transmission confined within the sub-slot, among a group of overlapping PUCCH transmissions and PUSCH transmissions in the sub-slot, where some of the group of overlapping PUCCH transmissions and PUSCH transmissions may start earlier than the start of the sub-slot and/or may end later than the end of the sub-slot, satisfies the following seven conditions.

[0093] In a first condition, Po is not before a symbol with CP starting after

after a last symbol of any corresponding PDSCH transmission,

is given by maximum of where for the i-th PDSCH transmission with corresponding HARQ-ACK

transmission on a PUCCH transmission which is in the group of overlapping PUCCH transmissions and PUSCH transmissions,

is selected for the i-th PDSCH following [6, TS 38.214], N₁ is selected based on the UE PDSCH transmission processing capability of the i-th PDSCH transmission and subcarrier spacing (“SCS”) configuration μ, where μ. corresponds to the smallest SCS configuration among the SCS configurations used for the PDCCH transmission scheduling the i-th PDSCH (if any), the i-th PDSCH transmission, the PUCCH transmission with corresponding HARQ-ACK transmission for i-th PDSCH transmission, and all PUSCH transmissions in the group of overlapping PUCCH transmissions and PUSCH transmissions.

[0094] In a second condition, Po is not before a symbol with CP starting after

after a last symbol of any corresponding semi-persistent scheduling (“SPS”) PDSCH release or of a DCI format 1_1 indicating SCell dormancy.

is given by maximum of where for the i-th PDCCH transmission providing the SPS

PDSCH release or the DCI format 1_1 with corresponding HARQ-ACK transmission on a PUCCH transmission which is in the group of overlapping PUCCH transmissions and PUSCH transmissions,

and is selected based on the UE PDSCH processing capability of the i-th SPS PDSCH release or the DCI format 1_1 and SCS configuration μ. , where μ. corresponds to the smallest SCS configuration among the SCS configurations used for the PDCCH transmission providing the i-th SPS PDSCH release, the PUCCH transmission with corresponding HARQ-ACK transmission for i-th SPS PDSCH release or the DCI format 1_1, and all PUSCH transmissions in the group of overlapping PUCCH transmissions and PUSCH transmissions.

[0095] In a third condition, if there is no aperiodic CSI report multiplexed in a PUSCH transmission in a group of overlapping PUCCH transmissions and PUSCH transmission s, So is not before a symbol with CP starting after after a last symbol of: 1) any PDCCH

transmission with the DCI format scheduling an overlapping PUSCH; and 2) any PDCCH transmission scheduling a PDSCH transmission or SPS PDSCH release with corresponding HARQ-ACK information in an overlapping PUCCH in the sub-slot.

[0096] In a fourth condition, if there is at least one PUSCH transmission in the group of overlapping PUCCH transmissions and PUSCH transmissions,

is given by maximum of where for the i-th PUSCH which is in the group of overlapping PUCCH

transmissions and PUSCH transmissions,

are selected for the i-th PUSCH, N₂ is selected

based on the UE PUSCH processing capability of the i-th PUSCH transmission and SCS configuration μ , where μ corresponds to the smallest SCS configuration among the SCS configurations used for the PDCCH transmission scheduling the i-th PUSCH transmission (if any), the PDCCH transmissions scheduling the PDSCH transmissions with corresponding HARQ-ACK transmission on a PUCCH transmission which is in the group of overlapping PUCCH transmissions and/or PUSCH transmissions, and all PUSCH transmissions in the group of overlapping PUCCH transmissions and PUSCH transmissions.

[0097] In a fifth condition, if there is no PUSCH transmission in the group of overlapping PUCCH transmissions and PUSCH transmissions,

is given by a maximum of wl^qcrc for the i-th PDSCH transmission with corresponding HARQ-ACK

transmission on a PUCCH transmission which is in the group of overlapping PUCCH transmissions, is selected based on the UE

PUSCH processing capability of the PUCCH transmission serving cell if configured. N₂ is selected based on the UE PUSCH processing capability, if PUSCH processing capability is not configured for the PUCCH transmission serving cell, /i is selected based on the smallest SCS configuration between the SCS configuration used for the PDCCH transmission scheduling the i- th PDSCH transmission (if any) with corresponding HARQ-ACK transmission on a PUCCH transmission which is in the group of overlapping PUCCH transmissions, and the SCS configuration for the PUCCH transmission serving cell.

[0098] In a sixth condition, if there is an aperiodic CSI report multiplexed in a PUSCH transmission in the group of overlapping PUCCH transmissions and PUSCH transmissions, So is not before a symbol with CP starting after

last symbol of: 1) any PDCCH transmission with the DCI format

scheduling an overlapping PUSCH transmission; and 2) any PDCCH transmission scheduling a PDSCH transmission, or SPS PDSCH release, or providing a DCI format 1 1 indicating secondary cell (“SCell”) dormancy with corresponding HARQ-ACK information in an overlapping PUCCH transmission in the sub-slot, where μ corresponds to the smallest SCS configuration among the SCS configuration of the PDCCH transmissions, the smallest SCS configuration for the group of the overlapping PUSCH transmissions, and the smallest SCS configuration of CSI RS (“CSI-RS”) associated with the DCI format scheduling the PUSCH transmission with the multiplexed aperiodic CSI report, and

[0099] In a seventh condition, and Z may be predefined, and K and

T_c may be predefined.

[0100] f a UE would transmit multiple overlapping PUCCH transmissions in a sub-slot or overlapping PUCCH transmissions and PUSCH transmissions in a sub-slot, one of the PUCCH transmissions includes HARQ-ACK information in response to an SPS PDSCH reception, and any PUSCH transmission is not in response to a DCI format detection, the UE expects that the first symbol S_o of the earliest PUCCH transmission or PUSCH transmission satisfies the first of the previous timeline conditions with the exception that components associated to a SCS configuration for a PDCCH transmission scheduling a PDSCH transmission or a PUSCH transmission are absent from the timeline conditions.

[0101] A UE does not expect a PUCCH transmission or a PUSCH transmission that is in response to a DCI format detection to overlap with any other PUCCH transmission or PUSCH transmission that does not satisfy the above timing conditions.

[0102] If a UE would transmit multiple PUCCH transmissions in a sub-slot that include HARQ-ACK information, SRs, and/or CSI reports and any PUCCH transmission with HARQ- ACK information in the sub-slot satisfies the above timing conditions and does not overlap with any other PUCCH transmission or PUSCH transmission in the sub-slot that does not satisfy the above timing conditions, the UE multiplexes the HARQ-ACK information, SRs, and/or CSI reports and determines corresponding PUCCH transmissions for transmission in the sub-slot according to the following pseudo-code (e.g., as described in 9.2.5 of TS 38.213). If the multiple PUCCH transmissions do not include HARQ-ACK information and do not overlap with any PUSCH transmission by the UE in response to a DCI format detection by the UE, the timing conditions do not apply.

[0103] In certain embodiments, there may be multiplexing of a sub-slot based HARQ- ACK in a PUSCH transmission with repetition.

[0104] In some embodiments, if a UE transmits a PUSCH transmission with repetition Type A or B and the UE would transmit a PUCCH transmission with sub-slot based HARQ-ACK and/or CSI information over a single sub-slot (e.g., the sub-slot including, for example, 2 or 7 symbols) that overlaps with the PUSCH transmission in one or more slots (e.g., each slot including 14 symbols), the UE expects all PUSCH transmission occasions (for type A) or all actual repetitions of the PUSCH transmission (for type B) that may overlap with the sub-slot based PUCCH transmission to fulfil certain conditions for multiplexing the sub-slot based HARQ-ACK information and/or CSI, and the UE multiplexes the sub-slot based HARQ-ACK and/or CSI in the earliest PUSCH transmission occasion or earliest actual repetition of the PUSCH transmission that would overlap with the sub-slot based PUCCH transmission and includes more than a predefined or configured [X] number of symbols (e.g., X=l). In such embodiments, the UE may transmit the HARQ-ACK information earlier than a start of the assigned sub-slot for the HARQ-ACK feedback, if the earliest PUSCH transmission occasion or earliest actual repetition of the PUSCH transmission that would overlap with the sub-slot based PUCCH transmission includes more than the [X] number of symbols and starts earlier than the start of the assigned sub-slot. For example, in Figure 5, the UE multiplexes the sub-slot based HARQ-ACK information on a symbol right after DM RS in the 1st actual repetition of the PUSCH transmission. If the UE is also scheduled to transmit sub-slot based HARQ-ACK in sub-slot 0 of slot ‘n’, the UE multiplexes the HARQ- ACK of sub-slot 0 and the HARQ-ACK of sub-slot 1 sequentially (e.g., the HARQ-ACK of subslot 0 on the next (first) symbol after DM RS and the HARQ-ACK of sub-slot 1 on the second symbol after DM RS (e.g., after the symbol comprising the HARQ-ACK of sub-slot 0) in the 1st actual repetition of the PUSCH).

[0105] In various embodiments, if a UE transmits a PUSCH transmission with repetition Type A or B and the UE would transmit a PUCCH transmission with sub-slot based HARQ-ACK information and/or CSI over a single sub-slot (e.g., the sub-slot including, for example, 2 or 7 symbols) that overlaps with the PUSCH transmission in one or more slots (e.g., each slot including 14 symbols), the UE expects all PUSCH transmission occasions (for type A) or actual repetitions of the PUSCH transmission (for type B) that would overlap with the sub-slot based PUCCH transmission to fulfil the conditions for multiplexing the sub-slot based HARQ-ACK and/or CSI, and the UE multiplexes the sub-slot based HARQ-ACK and/or CSI in the earliest full or part of a PUSCH transmission occasion within the sub-slot or the earliest full or part of an actual repetition of the PUSCH transmission within the sub-slot that would overlap with the sub-slot based PUCCH transmission and includes more than a predefined or configured [X] number of symbols (e.g., X=l). For example, in Figure 5, the UE multiplexes the sub-slot based HARQ-ACK information on the earliest symbol of the 1st actual repetition of the PUSCH transmission within the sub-slot 1 of slot ‘n’.

[0106] In certain embodiments, if a UE transmits a PUSCH transmission with repetition Type A or B and the UE would transmit a PUCCH transmission with sub-slot based HARQ-ACK and/or CSI information over a single sub-slot (e.g., the sub-slot including, for example, 2 or 7 symbols) that overlaps with the PUSCH transmission in one or more slots (e.g., each slot including 14 symbols), the UE expects at least one PUSCH transmission occasion (for type A) or at least one actual repetition of the PUSCH transmission (for type B) that would overlap with the sub-slot based PUCCH transmission to fulfil conditions for multiplexing the sub-slot based HARQ-ACK and/or CSI information, and the UE multiplexes the sub-slot based HARQ-ACK and/or CSI in the earliest PUSCH transmission occasion among the at least one PUSCH transmission occasion (for type A) or the earliest actual repetition of the PUSCH transmission among the at least one actual repetition of the PUSCH transmission that would overlap with the sub-slot based PUCCH transmission and includes more than a predefined or configured [X] number of symbols (e.g., X=l). For example, in Figure 5, the UE multiplexes the sub-slot based HARQ-ACK information on the earliest available symbol (e.g., a symbol right after DM RS) of the 2nd actual repetition of the PUSCH transmission, if the 2nd actual repetition is the earliest actual repetition satisfying the timing condition.

[0107] Figure 5 is a timing block diagram 500 illustrating another embodiment of communications for multiplexing hybrid automatic repeat request acknowledgment information. Specifically, Figure 5 illustrates a sub-slot based HARQ-ACK PUCCH transmission 502 overlapping with multiple actual repetitions of PUSCH transmission (e.g., first PUSCH repetition transmission 504, second PUSCH repetition transmission 506, third PUSCH repetition transmission 508, and fourth PUSCH repetition transmission 510) in PUSCH repetition type B. [0108] Figure 6 is a timing block diagram 600 illustrating a further embodiment of communications for multiplexing hybrid automatic repeat request acknowledgment information. Specifically, Figure 6 illustrates one embodiment of HARQ-ACK multiplexing in PUSCH transmissions with the 2-symbol sub-slot configuration in a slot. As illustrated, a first PUCCH transmission 602 (PUCCH 1, HARQ-ACK) is multiplexed into a PUSCH transmission 608 following a first PUSCH DM RS 604, a second PUCCH transmission 606 (PUCCH 2, HARQ- ACK) is multiplexed into the PUSCH transmission 608, a third PUCCH transmission 610 (PUCCH 3, HARQ-ACK) is multiplexed into the PUSCH transmission 608 following a second PUSCH DM RS 612.

[0109] In some embodiments, a UE receives a first scaling value (e.g., a first alpha value for a variable ^α in an equation) to determine a first maximum allowed number of coded modulation symbols per layer for a given UCI type (e.g., HARQ-ACK, SR, and/or CSI) and a second scaling value (e.g., a second alpha value for the variable ^α in an equation) to determine a second maximum allowed number of coded modulation symbols per layer for the UCI type, where the UE applies the first scaling value if the UCI type is a high-priority and applies the second scaling value if the UCI type is a low priority. In various embodiments, a UE receives one of first or second scaling values, and an alpha value is determined based on a received scaling value. In one example, the UE determines and applies a smaller scaling value leading to the smaller maximum number of coded modulation symbols per layer for a UCI type, if a PUCCH transmission carrying low priority UCI overlaps with a high-priority PUSCH transmissions and multiplexing the low-priority UCI into the high-priority PUSCH transmission may be allowed and/or supported for the UCI type. On the other hand, if the PUCCH transmission overlapping with the high-priority PUSCH transmission carries high-priority UCI, the UE determines and applies a larger scaling value.

[0110] In certain embodiments, a UE may determine a scaling value based on a number of available symbols (e.g., a number of symbols without including DM RS) or a number of symbols (e.g., including DM RS symbols) in a full or part of a PUSCH transmission within a sub-slot. In one example, a first scaling value is used if a number is below a threshold, and otherwise a second scaling value is used. In another example, a first set of scaling values is configured for high priority UCI and a second set of scaling values is configured for high priority UCI. The UE determines the scaling value from the first set of scaling values or the second set of scaling values based on whether the PUCCH transmission carriers high-priority UCI or low priority UCI. [0111] For example, for HARQ-ACK transmission on a PUSCH transmission with UU SCH, there may be a number of coded modulation symbols per layer for HARQ-ACK transmission, denoted as and may be determined using the following equation:

[0113] Figure 7 is a flow chart diagram illustrating one embodiment of a method 700 for multiplexing hybrid automatic repeat request acknowledgment information. In some embodiments, the method 700 is performed by an apparatus, such as the remote unit 102. In certain embodiments, the method 700 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.

[0114] In various embodiments, the method 700 includes receiving 702, at a user equipment, first scheduling information for a physical uplink shared channel transmission in a slot. In some embodiments, the method 700 includes receiving 704 second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In certain embodiments, the method 700 includes determining 706 an earliest available symbol of a part of the physical uplink shared channel transmission. The part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission. In various embodiments, the method 700 includes multiplexing 708 the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0115] In certain embodiments, the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot. In some embodiments, the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

[0116] In various embodiments, the method 700 further comprises: determining whether a first condition is satisfied, wherein: the first condition comprises a first symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical uplink shared channel preparation time after an ending symbol of a first physical downlink control channel transmission; the first physical downlink control channel transmission comprises the downlink scheduling assignment; and the first symbol is a beginning symbol of the physical uplink shared channel transmission; and determining whether a second condition is satisfied, wherein: the second condition comprises a second symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical downlink shared channel processing time after an ending symbol of the physical downlink shared channel transmission; and the second symbol is a beginning symbol of the part of the physical uplink shared channel transmission; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises multiplexing the hybrid automatic repeat request acknowledgment information as a result of the first condition and the second condition being satisfied.

[0117] In one embodiment, the method 700 further comprises: receiving a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; and determining a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission based on a scaling parameter value selected from the plurality of values; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises transmitting the hybrid automatic repeat request acknowledgment information based on the determined number of coded modulation symbols per spatial layer.

[0118] In certain embodiments, the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission. In some embodiments, the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

[0119] In various embodiments, the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

[0120] Figure 8 is a flow chart diagram illustrating one embodiment of a method 800 for multiplexing hybrid automatic repeat request acknowledgment information. In some embodiments, the method 800 is performed by an apparatus, such as the network unit 104. In certain embodiments, the method 800 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.

[0121] In various embodiments, the method 800 includes transmitting 802, from a network device, first scheduling information for a physical uplink shared channel transmission in a slot. In some embodiments, the method 800 includes transmitting 804 second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot. The physical uplink control channel transmission includes hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot. In certain embodiments, an earliest available symbol of a part of the physical uplink shared channel transmission is determined 806, the part of the physical uplink shared channel transmission includes a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0122] In certain embodiments, the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot. In some embodiments, the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission. [0123] In various embodiments, the method 800 further comprises transmitting a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; wherein a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on a scaling parameter value selected from the plurality of values; and wherein the multiplexing hybrid automatic repeat request acknowledgment information comprises the hybrid automatic repeat request acknowledgment information transmitted based on the determined number of coded modulation symbols per spatial layer.

[0124] In one embodiment, the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission. In certain embodiments, the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

[0125] In some embodiments, the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

[0126] In one embodiment, a method comprises: receiving first scheduling information for a physical uplink shared channel transmission in a slot; receiving second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; determining an earliest available symbol of a part of the physical uplink shared channel transmission, wherein the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission; and multiplexing the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0127] In certain embodiments, the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot.

[0128] In some embodiments, the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

[0129] In various embodiments, the method further comprises: determining whether a first condition is satisfied, wherein: the first condition comprises a first symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical uplink shared channel preparation time after an ending symbol of a first physical downlink control channel transmission; the first physical downlink control channel transmission comprises the downlink scheduling assignment; and the first symbol is a beginning symbol of the physical uplink shared channel transmission; and determining whether a second condition is satisfied, wherein: the second condition comprises a second symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical downlink shared channel processing time after an ending symbol of the physical downlink shared channel transmission; and the second symbol is a beginning symbol of the part of the physical uplink shared channel transmission; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises multiplexing the hybrid automatic repeat request acknowledgment information as a result of the first condition and the second condition being satisfied.

[0130] In one embodiment, the method further comprises: receiving a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; and determining a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission based on a scaling parameter value selected from the plurality of values; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises transmitting the hybrid automatic repeat request acknowledgment information based on the determined number of coded modulation symbols per spatial layer. [0131] In certain embodiments, the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission.

[0132] In some embodiments, the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

[0133] In various embodiments, the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

[0134] In one embodiment, an apparatus comprises: a receiver that: receives first scheduling information for a physical uplink shared channel transmission in a slot; and receives second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the subslot; and a processor that: determines an earliest available symbol of a part of the physical uplink shared channel transmission, wherein the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission; and multiplexes the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0135] In certain embodiments, the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot.

[0136] In some embodiments, the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

[0137] In various embodiments, the processor: determines whether a first condition is satisfied, wherein: the first condition comprises a first symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical uplink shared channel preparation time after an ending symbol of a first physical downlink control channel transmission; the first physical downlink control channel transmission comprises the downlink scheduling assignment; and the first symbol is a beginning symbol of the physical uplink shared channel transmission; and determines whether a second condition is satisfied, wherein: the second condition comprises a second symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical downlink shared channel processing time after an ending symbol of the physical downlink shared channel transmission; and the second symbol is a beginning symbol of the part of the physical uplink shared channel transmission; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises multiplexing the hybrid automatic repeat request acknowledgment information as a result of the first condition and the second condition being satisfied.

[0138] In one embodiment: the receiver receives a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; and the processor determines a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission based on a scaling parameter value selected from the plurality of values; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises transmitting the hybrid automatic repeat request acknowledgment information based on the determined number of coded modulation symbols per spatial layer.

[0139] In certain embodiments, the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission.

[0140] In some embodiments, the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

[0141] In various embodiments, the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

[0142] In one embodiment, a method comprises: transmitting first scheduling information for a physical uplink shared channel transmission in a slot; and transmitting second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; wherein an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0143] In certain embodiments, the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot.

[0144] In some embodiments, the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

[0145] In various embodiments, the method further comprises transmitting a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; wherein a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on a scaling parameter value selected from the plurality of values; and wherein the multiplexing hybrid automatic repeat request acknowledgment information comprises the hybrid automatic repeat request acknowledgment information transmitted based on the determined number of coded modulation symbols per spatial layer.

[0146] In one embodiment, the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission.

[0147] In certain embodiments, the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

[0148] In some embodiments, the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

[0149] In one embodiment, an apparatus comprises: a transmitter that: transmits first scheduling information for a physical uplink shared channel transmission in a slot; and transmits second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the subslot; wherein an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

[0150] In certain embodiments, the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot. [0151] In some embodiments, the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

[0152] In various embodiments: the transmitter transmits a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on a scaling parameter value selected from the plurality of values; and the multiplexing hybrid automatic repeat request acknowledgment information comprises the hybrid automatic repeat request acknowledgment information transmitted based on the determined number of coded modulation symbols per spatial layer.

[0153] In one embodiment, the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission.

[0154] In certain embodiments, the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

[0155] In some embodiments, the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

[0156] Embodiments may be practiced in other specific forms. The described embodiments are to be considered in all respects only as illustrative and not restrictive. The scope of the invention is, therefore, indicated by the appended claims rather than by the foregoing description. All changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. A method comprising : receiving first scheduling information for a physical uplink shared channel transmission in a slot; receiving second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the subslot; determining an earliest available symbol of a part of the physical uplink shared channel transmission, wherein the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission; and multiplexing the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the subslot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

2. The method of claim 1, wherein the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot.

3. The method of claim 1, wherein the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

4. The method of claim 3, further comprising: determining whether a first condition is satisfied, wherein: the first condition comprises a first symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical uplink shared channel preparation time after an ending symbol of a first physical downlink control channel transmission; the first physical downlink control channel transmission comprises the downlink scheduling assignment; and the first symbol is a beginning symbol of the physical uplink shared channel transmission; and determining whether a second condition is satisfied, wherein: the second condition comprises a second symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical downlink shared channel processing time after an ending symbol of the physical downlink shared channel transmission; and the second symbol is a beginning symbol of the part of the physical uplink shared channel transmission; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises multiplexing the hybrid automatic repeat request acknowledgment information as a result of the first condition and the second condition being satisfied.

5. The method of claim 1, further comprising: receiving a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; and determining a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission based on a scaling parameter value selected from the plurality of values; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises transmitting the hybrid automatic repeat request acknowledgment information based on the determined number of coded modulation symbols per spatial layer.

6. The method of claim 5, wherein the scaling parameter value is selected based on at least one selected from a priority of the hybrid automatic repeat request acknowledgment information and a number of available symbols in the part of the physical uplink shared channel transmission.

7. The method of claim 1, wherein the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

8. The method of claim 7, wherein the earliest physical uplink shared channel transmission is a physical uplink shared channel transmission that occurs at least partly after a physical uplink shared channel preparation time upon receiving the first and second scheduling information and after a physical downlink shared channel processing time upon receiving a physical downlink shared channel transmission associated with the second scheduling information.

9. An apparatus comprising: a receiver that: receives first scheduling information for a physical uplink shared channel transmission in a slot; and receives second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and a processor that: determines an earliest available symbol of a part of the physical uplink shared channel transmission, wherein the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission; and multiplexes the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

10. The apparatus of claim 9, wherein the subset of the symbols of the physical uplink shared channel transmission are within the sub-slot.

11. The apparatus of claim 9, wherein the second scheduling information comprises a downlink scheduling assignment, the downlink scheduling assignment schedules a physical downlink shared channel transmission and an indication of a physical uplink control channel resource, and the physical uplink control channel resource is used for the physical uplink control channel transmission and the hybrid automatic repeat request acknowledgment information corresponds to feedback for the physical downlink shared channel transmission.

12. The apparatus of claim 11, wherein the processor: determines whether a first condition is satisfied, wherein: the first condition comprises a first symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical uplink shared channel preparation time after an ending symbol of a first physical downlink control channel transmission; the first physical downlink control channel transmission comprises the downlink scheduling assignment; and the first symbol is a beginning symbol of the physical uplink shared channel transmission; and determines whether a second condition is satisfied, wherein: the second condition comprises a second symbol of the physical uplink shared channel transmission not being before a symbol with cyclic prefix starting after a physical downlink shared channel processing time after an ending symbol of the physical downlink shared channel transmission; and the second symbol is a beginning symbol of the part of the physical uplink shared channel transmission; wherein multiplexing the hybrid automatic repeat request acknowledgment information comprises multiplexing the hybrid automatic repeat request acknowledgment information as a result of the first condition and the second condition being satisfied.

13. The apparatus of claim 9, wherein the physical uplink shared channel transmission comprises a plurality of physical uplink shared channel transmissions, and the earliest available symbol of the part of the physical uplink shared channel transmission comprises an earliest available symbol of a part of an earliest physical uplink shared channel transmission of the plurality of physical uplink shared channel transmissions that: at least partially overlaps in time with the physical uplink control channel transmission in the sub-slot; and includes more than a predetermined number of symbols.

14. A method comprising: transmitting first scheduling information for a physical uplink shared channel transmission in a slot; and transmitting second scheduling information for a physical uplink control channel transmission in a sub-slot of the slot, wherein the physical uplink control channel transmission comprises hybrid automatic repeat request acknowledgment information and the physical uplink shared channel transmission at least partially overlaps in time with the physical uplink control channel transmission in the sub- slot; wherein an earliest available symbol of a part of the physical uplink shared channel transmission is determined, the part of the physical uplink shared channel transmission comprises a subset of symbols of the physical uplink shared channel transmission, and the hybrid automatic repeat request acknowledgment information scheduled to be transmitted in the physical uplink control channel transmission in the sub-slot is multiplexed into the physical uplink shared channel transmission based on the earliest available symbol of the part of the physical uplink shared channel transmission.

15. The method of claim 14, further comprising: transmitting a plurality of values for a scaling parameter, wherein a maximum number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on the scaling parameter; wherein a number of coded modulation symbols per spatial layer allocated for the hybrid automatic repeat request acknowledgment information in the physical uplink shared channel transmission is determined based on a scaling parameter value selected from the plurality of values; and wherein the multiplexing hybrid automatic repeat request acknowledgment information comprises the hybrid automatic repeat request acknowledgment information transmitted based on the determined number of coded modulation symbols per spatial layer.