WO2023154598A1 - Retransmission de livre de codes d'accusé de réception de requête automatique de répétition hybride pour de multiples points d'émission/réception basés sur de multiples informations de commande de liaison descendante - Google Patents

Retransmission de livre de codes d'accusé de réception de requête automatique de répétition hybride pour de multiples points d'émission/réception basés sur de multiples informations de commande de liaison descendante Download PDF

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Publication number
WO2023154598A1
WO2023154598A1 PCT/US2023/060653 US2023060653W WO2023154598A1 WO 2023154598 A1 WO2023154598 A1 WO 2023154598A1 US 2023060653 W US2023060653 W US 2023060653W WO 2023154598 A1 WO2023154598 A1 WO 2023154598A1
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WO
WIPO (PCT)
Prior art keywords
harq
ack codebook
pool index
slot
coreset pool
Prior art date
Application number
PCT/US2023/060653
Other languages
English (en)
Inventor
Mostafa KHOSHNEVISAN
Yan Zhou
Konstantinos Dimou
Yi Huang
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US18/153,715 external-priority patent/US20230254072A1/en
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to KR1020247025443A priority Critical patent/KR20240148333A/ko
Priority to CN202380018379.6A priority patent/CN118592000A/zh
Publication of WO2023154598A1 publication Critical patent/WO2023154598A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1685—Details of the supervisory signal the supervisory signal being transmitted in response to a specific request, e.g. to a polling signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements

Definitions

  • aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for hybrid automated repeat request acknowledgement (HARQ- ACK) codebook retransmission for multiple downlink control information (multi-DCI) based multiple transmit receive point (multi -TRP).
  • HARQ- ACK hybrid automated repeat request acknowledgement
  • multi-DCI multiple downlink control information
  • multi -TRP multiple transmit receive point
  • Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts.
  • Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like).
  • multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single-carrier frequency division multiple access (SC- FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE).
  • LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3 GPP).
  • UMTS Universal Mobile Telecommunications System
  • a wireless network may include one or more base stations that support communication for wireless communication devices, such as a user equipment (UE) or multiple UEs.
  • a UE may communicate with a base station via downlink communications and uplink communications.
  • Downlink (or “DL”) refers to a communication link from the base station to the UE
  • uplink (or “UL”) refers to a communication link from the UE to the base station.
  • Some wireless networks may support device-to-device communication, such as via a local link (e.g., a sidelink (SL), a wireless local area network (WLAN) link, and/or a wireless personal area network (WPAN) link, among other examples).
  • SL sidelink
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • New Radio which may be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP.
  • NR is designed to better support mobile broadband internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink, using CP-OFDM and/or single-carrier frequency division multiplexing (SC-FDM) (also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink, as well as supporting beamforming, multiple-input multiple -output (MIMO) antenna technology, and carrier aggregation.
  • OFDM orthogonal frequency division multiplexing
  • SC-FDM single-carrier frequency division multiplexing
  • MIMO multiple-input multiple -output
  • the method may include receiving, in a control resource set (CORESET) associated with a first CORESET pool index or a second CORESET pool index, downlink control information (DCI) including an indication that a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook scheduled in a first slot is to be retransmitted in a second slot.
  • DCI downlink control information
  • the method may include transmitting, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • Some aspects described herein relate to a method of wireless communication performed by a network entity.
  • the method may include transmitting, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ- ACK codebook associated with a second CORESET pool index configured for the UE.
  • the UE may include a memory and one or more processors coupled to the memory.
  • the one or more processors may be configured to receive, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot.
  • the one or more processors may be configured to transmit, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • the network entity may include a memory and one or more processors coupled to the memory.
  • the one or more processors may be configured to transmit, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ- ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE.
  • Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a UE.
  • the set of instructions when executed by one or more processors of the UE, may cause the UE to receive, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot.
  • the set of instructions when executed by one or more processors of the UE, may cause the UE to transmit, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • Some aspects described herein relate to a non-transitory computer-readable medium that stores a set of instructions for wireless communication by a network entity.
  • the set of instructions when executed by one or more processors of the network entity, may cause the network entity to transmit, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE.
  • the apparatus may include means for receiving, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot.
  • the apparatus may include means for transmitting, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • the apparatus may include means for transmitting, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ- ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE.
  • the apparatus may include means for receiving, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the HARQ-ACK codebook to be retransmitted in the second slot being the first HARQ-ACK codebook.
  • aspects generally include a method, apparatus, system, computer program product, non-transitory computer-readable medium, user equipment, base station, network entity, network node, wireless communication device, and/or processing system as substantially described herein with reference to and as illustrated by the drawings and specification.
  • aspects are described in the present disclosure by illustration to some examples, those skilled in the art will understand that such aspects may be implemented in many different arrangements and scenarios.
  • Techniques described herein may be implemented using different platform types, devices, systems, shapes, sizes, and/or packaging arrangements.
  • some aspects may be implemented via integrated chip embodiments or other non-module- component based devices (e.g., end-user devices, vehicles, communication devices, computing devices, industrial equipment, retail/purchasing devices, medical devices, and/or artificial intelligence devices).
  • Aspects may be implemented in chip-level components, modular components, non-modular components, non-chip-level components, device-level components, and/or system-level components.
  • Devices incorporating described aspects and features may include additional components and features for implementation and practice of claimed and described aspects.
  • transmission and reception of wireless signals may include one or more components for analog and digital purposes (e.g., hardware components including antennas, radio frequency (RF) chains, power amplifiers, modulators, buffers, processors, interleavers, adders, and/or summers).
  • RF radio frequency
  • aspects described herein may be practiced in a wide variety of devices, components, systems, distributed arrangements, and/or end-user devices of varying size, shape, and constitution.
  • FIG. 1 is a diagram illustrating an example of a wireless network, in accordance with the present disclosure.
  • FIG. 2 is a diagram illustrating an example of a base station in communication with a user equipment (UE) in a wireless network, in accordance with the present disclosure.
  • UE user equipment
  • FIG. 3 is a diagram illustrating an example disaggregated base station architecture, in accordance with the present disclosure.
  • Fig. 4 is a diagram illustrating an example logical architecture of a distributed radio access network (RAN), in accordance with the present disclosure.
  • Fig. 5 is a diagram illustrating an example of multiple transmit receive point (multi- TRP) communication, in accordance with the present disclosure.
  • Fig. 6 is a diagram illustrating an example of TRP differentiation at a UE based at least in part on a control resource set (CORESET) pool index, in accordance with the present disclosure.
  • Fig. 7 is a diagram illustrating an example of a separate hybrid automatic repeat request (HARQ) feedback mode for multiple downlink control information (multi-DCI) based multi -TRP, in accordance with the present disclosure.
  • HARQ hybrid automatic repeat request
  • Fig. 8 is a diagram illustrating an example of HARQ acknowledgement (HARQ- ACK) codebook retransmission, in accordance with the present disclosure.
  • FIGs. 9-11 are diagrams illustrating examples associated with HARQ-ACK codebook retransmission for multi-DCI based multi -TRP, in accordance with the present disclosure.
  • Figs. 12-13 are diagrams illustrating example processes associated with HARQ-ACK codebook retransmission for multi-DCI based multi-TRP, in accordance with the present disclosure.
  • FIGs. 14-15 are diagrams of example apparatuses for wireless communication, in accordance with the present disclosure.
  • aspects may be described herein using terminology commonly associated with a 5G or New Radio (NR) radio access technology (RAT), aspects of the present disclosure can be applied to other RATs, such as a 3G RAT, a 4G RAT, and/or a RAT subsequent to 5G (e.g., 6G).
  • NR New Radio
  • Fig. 1 is a diagram illustrating an example of a wireless network 100, in accordance with the present disclosure.
  • the wireless network 100 may be or may include elements of a 5G (e.g., NR) network and/or a 4G (e.g., Long Term Evolution (LTE)) network, among other examples.
  • 5G e.g., NR
  • 4G e.g., Long Term Evolution (LTE) network
  • the wireless network 100 may include one or more base stations 110 (shown as a BS 110a, a BS 110b, a BS 110c, and a BS 1 lOd), a user equipment (UE) 120 or multiple UEs 120 (shown as a UE 120a, a UE 120b, a UE 120c, a UE 120d, and a UE 120e), and/or other network entities.
  • a base station 110 is an entity that communicates with UEs 120.
  • a base station 110 may include, for example, an NR base station, an LTE base station, a Node B, an eNB (e.g., in 4G), a gNB (e.g., in 5G), an access point, and/or a transmission reception point (TRP).
  • Each base station 110 may provide communication coverage for a particular geographic area.
  • the term “cell” can refer to a coverage area of a base station 110 and/or a base station subsystem serving this coverage area, depending on the context in which the term is used.
  • a base station 110 may provide communication coverage for a macro cell, a pico cell, a femto cell, and/or another type of cell.
  • a macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs 120 with service subscriptions.
  • a pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs 120 with service subscriptions.
  • a femto cell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs 120 having association with the femto cell (e.g., UEs 120 in a closed subscriber group (CSG)).
  • CSG closed subscriber group
  • a base station 110 for a macro cell may be referred to as a macro base station.
  • a base station 110 for a pico cell may be referred to as a pico base station.
  • a base station 110 for a femto cell may be referred to as a femto base station or an in-home base station.
  • the BS 110a may be a macro base station for a macro cell 102a
  • the BS 110b may be a pico base station for a pico cell 102b
  • the BS 110c may be a femto base station for a femto cell 102c.
  • a base station may support one or multiple (e.g., three) cells.
  • a cell may not necessarily be stationary, and the geographic area of the cell may move according to the location of a base station 110 that is mobile (e.g., a mobile base station).
  • the base stations 110 may be interconnected to one another and/or to one or more other base stations 110 or network nodes in the wireless network 100 through various types of backhaul interfaces, such as a direct physical connection or a virtual network, using any suitable transport network.
  • base station may refer to an aggregated base station, a disaggregated base station, an integrated access and backhaul (IAB) node, a relay node, or one or more components thereof.
  • base station or network node may refer to a central unit (CU), a distributed unit (DU), a radio unit (RU), a Near-Real Time (Near-RT) RAN Intelligent Controller (RIC), or a Non-Real Time (Non-RT) RIC, or a combination thereof.
  • the terms “base station” or “network node” may refer to one device configured to perform one or more functions, such as those described herein in connection with the base station 110.
  • the terms “base station” or “network node” may refer to a plurality of devices configured to perform the one or more functions. For example, in some distributed systems, each of a quantity of different devices (which may be located in the same geographic location or in different geographic locations) may be configured to perform at least a portion of a function, or to duplicate performance of at least a portion of the function, and the terms “base station” or “network node” may refer to any one or more of those different devices.
  • base station or “network node” may refer to one or more virtual base stations or one or more virtual base station functions.
  • two or more base station functions may be instantiated on a single device.
  • the terms “base station” or “network node” may refer to one of the base station functions and not another. In this way, a single device may include more than one base station.
  • the wireless network 100 may include one or more relay stations.
  • a relay station is a network node that can receive a transmission of data from an upstream node (e.g., a base station 110 or a UE 120) and send a transmission of the data to a downstream node (e.g., a UE 120 or a base station 110).
  • a relay station may be a UE 120 that can relay transmissions for other UEs 120.
  • the BS 1 lOd e.g., a relay base station
  • the BS 110a e.g., a macro base station
  • a base station 110 that relays communications may be referred to as a relay station, a relay base station, a relay network node, a relay node, a relay, or the like.
  • the wireless network 100 may be a heterogeneous network that includes base stations 110 of different types, such as macro base stations, pico base stations, femto base stations, relay base stations, or the like. These different types of base stations 110 may have different transmit power levels, different coverage areas, and/or different impacts on interference in the wireless network 100.
  • macro base stations may have a high transmit power level (e.g., 5 to 40 watts) whereas pico base stations, femto base stations, and relay base stations may have lower transmit power levels (e.g., 0.1 to 2 watts).
  • a network controller 130 may couple to or communicate with a set of base stations 110 and may provide coordination and control for these base stations 110.
  • the network controller 130 may communicate with the base stations 110 via a backhaul communication link or a midhaul communication link.
  • the base stations 110 may communicate with one another directly or indirectly via a wireless or wireline backhaul communication link.
  • the network controller 130 may be a CU or a core network device, or may include a CU or a core network device.
  • the UEs 120 may be dispersed throughout the wireless network 100, and each UE 120 may be stationary or mobile.
  • a UE 120 may include, for example, an access terminal, a terminal, a mobile station, and/or a subscriber unit.
  • a UE 120 may be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device, a biometric device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, a smart wristband, smart jewelry (e.g., a smart ring or a smart bracelet)), an entertainment device (e.g., a music device, a video device, and/or a satellite radio), a vehicular component or sensor,
  • Some UEs 120 may be considered machine-type communication (MTC) or evolved or enhanced machine-type communication (eMTC) UEs.
  • An MTC UE and/or an eMTC UE may include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and/or a location tag, that may communicate with a base station, another device (e.g., a remote device), or some other entity.
  • Some UEs 120 may be considered Intemet-of-Things (loT) devices, and/or may be implemented as NB-IoT (narrowband loT) devices.
  • Some UEs 120 may be considered a Customer Premises Equipment.
  • a UE 120 may be included inside a housing that houses components of the UE 120, such as processor components and/or memory components.
  • the processor components and the memory components may be coupled together.
  • the processor components e.g., one or more processors
  • the memory components e.g., a memory
  • the processor components and the memory components may be operatively coupled, communicatively coupled, electronically coupled, and/or electrically coupled.
  • any number of wireless networks 100 may be deployed in a given geographic area.
  • Each wireless network 100 may support a particular RAT and may operate on one or more frequencies.
  • a RAT may be referred to as a radio technology, an air interface, or the like.
  • a frequency may be referred to as a carrier, a frequency channel, or the like.
  • Each frequency may support a single RAT in a given geographic area in order to avoid interference between wireless networks of different RATs.
  • NR or 5G RAT networks may be deployed.
  • two or more UEs 120 may communicate directly using one or more sidelink channels (e.g., without using a base station 110 as an intermediary to communicate with one another).
  • the UEs 120 may communicate using peer-to-peer (P2P) communications, device-to-device (D2D) communications, a vehicle-to-everything (V2X) protocol (e.g., which may include a vehicle-to- vehicle (V2V) protocol, a vehicle-to-infrastructure (V2I) protocol, or a vehicle-to-pedestrian (V2P) protocol), and/or a mesh network.
  • V2X vehicle-to-everything
  • a UE 120 may perform scheduling operations, resource selection operations, and/or other operations described elsewhere herein as being performed by the base station 110.
  • Devices of the wireless network 100 may communicate using the electromagnetic spectrum, which may be subdivided by frequency or wavelength into various classes, bands, channels, or the like. For example, devices of the wireless network 100 may communicate using one or more operating bands.
  • 5G NR two initial operating bands have been identified as frequency range designations FR1 (410 MHz - 7.125 GHz) and FR2 (24.25 GHz - 52.6 GHz). It should be understood that although a portion of FR1 is greater than 6 GHz, FR1 is often referred to (interchangeably) as a “Sub-6 GHz” band in various documents and articles.
  • FR2 which is often referred to (interchangeably) as a “millimeter wave” band in documents and articles, despite being different from the extremely high frequency (EHF) band (30 GHz - 300 GHz) which is identified by the International Telecommunications Union (ITU) as a “millimeter wave” band.
  • EHF extremely high frequency
  • ITU International Telecommunications Union
  • FR3 7.125 GHz - 24.25 GHz
  • FR3 7.125 GHz - 24.25 GHz
  • Frequency bands falling within FR3 may inherit FR1 characteristics and/or FR2 characteristics, and thus may effectively extend features of FR1 and/or FR2 into mid-band frequencies.
  • higher frequency bands are currently being explored to extend 5G NR operation beyond 52.6 GHz.
  • FR4a or FR4-1 52.6 GHz - 71 GHz
  • FR4 52.6 GHz - 114.25 GHz
  • FR5 114.25 GHz - 300 GHz.
  • Each of these higher frequency bands falls within the EHF band.
  • sub-6 GHz may broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies.
  • millimeter wave may broadly represent frequencies that may include mid-band frequencies, may be within FR2, FR4, FR4-a or FR4-1, and/or FR5, or may be within the EHF band.
  • frequencies included in these operating bands may be modified, and techniques described herein are applicable to those modified frequency ranges.
  • the UE 120 may include a communication manager 140.
  • the communication manager 140 may receive, in a control resource set (CORESET) associated with a first CORESET pool index or a second CORESET pool index, downlink control information (DCI) including an indication that a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook scheduled in a first slot is to be retransmitted in a second slot; and transmit, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index. Additionally, or alternatively, the communication manager 140 may perform one or more other operations described herein.
  • CORESET control resource set
  • DCI downlink control information
  • HARQ-ACK hybrid automatic repeat request acknowledgement
  • the communication manager 140 may perform one or more other operations described herein.
  • a network entity may include a communication manager 150.
  • the communication manager 150 may transmit, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE.
  • the communication manager 150 may perform one or more other operations described herein.
  • Fig. 1 is provided as an example. Other examples may differ from what is described with regard to Fig. 1.
  • Fig. 2 is a diagram illustrating an example 200 of a base station 110 in communication with a UE 120 in a wireless network 100, in accordance with the present disclosure.
  • the base station 110 may be equipped with a set of antennas 234a through 234t, such as T antennas (T> 1).
  • the UE 120 may be equipped with a set of antennas 252a through 252r, such as R antennas (R > 1).
  • a transmit processor 220 may receive data, from a data source 212, intended for the UE 120 (or a set of UEs 120).
  • the transmit processor 220 may select one or more modulation and coding schemes (MCSs) for the UE 120 based at least in part on one or more channel quality indicators (CQIs) received from that UE 120.
  • MCSs modulation and coding schemes
  • CQIs channel quality indicators
  • the base station 110 may process (e.g., encode and modulate) the data for the UE 120 based at least in part on the MCS(s) selected for the UE 120 and may provide data symbols for the UE 120.
  • the transmit processor 220 may process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and/or upper layer signaling) and provide overhead symbols and control symbols.
  • the transmit processor 220 may generate reference symbols for reference signals (e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)) and synchronization signals (e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)).
  • reference signals e.g., a cell-specific reference signal (CRS) or a demodulation reference signal (DMRS)
  • synchronization signals e.g., a primary synchronization signal (PSS) or a secondary synchronization signal (SSS)
  • a transmit (TX) multiple-input multiple -output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, the control symbols, the overhead symbols, and/or the reference symbols, if applicable, and may provide a set of output symbol streams (e.g., T output symbol streams) to a corresponding set of modems 232 (e.g., T modems), shown as modems 232a through 232t.
  • each output symbol stream may be provided to a modulator component (shown as MOD) of a modem 232.
  • Each modem 232 may use a respective modulator component to process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream.
  • Each modem 232 may further use a respective modulator component to process (e.g., convert to analog, amplify, fdter, and/or upconvert) the output sample stream to obtain a downlink signal.
  • the modems 232a through 232t may transmit a set of downlink signals (e.g., T downlink signals) via a corresponding set of antennas 234 (e.g., T antennas), shown as antennas 234a through 234t.
  • a set of antennas 252 may receive the downlink signals from the base station 110 and/or other base stations 110 and may provide a set of received signals (e.g., R received signals) to a set of modems 254 (e.g., R modems), shown as modems 254a through 254r.
  • R received signals e.g., R received signals
  • each received signal may be provided to a demodulator component (shown as DEMOD) of a modem 254.
  • DEMOD demodulator component
  • Each modem 254 may use a respective demodulator component to condition (e.g., fdter, amplify, downconvert, and/or digitize) a received signal to obtain input samples.
  • Each modem 254 may use a demodulator component to further process the input samples (e.g., for OFDM) to obtain received symbols.
  • a MIMO detector 256 may obtain received symbols from the modems 254, may perform MIMO detection on the received symbols if applicable, and may provide detected symbols.
  • a receive processor 258 may process (e.g., demodulate and decode) the detected symbols, may provide decoded data for the UE 120 to a data sink 260, and may provide decoded control information and system information to a controller/processor 280.
  • controller/processor may refer to one or more controllers, one or more processors, or a combination thereof.
  • a channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and/or a CQI parameter, among other examples.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • RSSRQ reference signal received quality
  • CQI CQI parameter
  • the network controller 130 may include a communication unit 294, a controller/processor 290, and a memory 292.
  • the network controller 130 may include, for example, one or more devices in a core network.
  • the network controller 130 may communicate with the base station 110 via the communication unit 294.
  • One or more antennas may include, or may be included within, one or more antenna panels, one or more antenna groups, one or more sets of antenna elements, and/or one or more antenna arrays, among other examples.
  • An antenna panel, an antenna group, a set of antenna elements, and/or an antenna array may include one or more antenna elements (within a single housing or multiple housings), a set of coplanar antenna elements, a set of non-coplanar antenna elements, and/or one or more antenna elements coupled to one or more transmission and/or reception components, such as one or more components of Fig. 2.
  • a transmit processor 264 may receive and process data from a data source 262 and control information (e.g., for reports that include RSRP, RS SI, RSRQ, and/or CQI) from the controller/processor 280.
  • the transmit processor 264 may generate reference symbols for one or more reference signals.
  • the symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 if applicable, further processed by the modems 254 (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110.
  • the modem 254 of the UE 120 may include a modulator and a demodulator.
  • the UE 120 includes a transceiver.
  • the transceiver may include any combination of the antenna(s) 252, the modem(s) 254, the MIMO detector 256, the receive processor 258, the transmit processor 264, and/or the TX MIMO processor 266.
  • the transceiver may be used by a processor (e.g., the controller/processor 280) and the memory 282 to perform aspects of any of the methods described herein (e.g., with reference to Figs. 9-15).
  • the uplink signals from UE 120 and/or other UEs may be received by the antennas 234, processed by the modem 232 (e.g., a demodulator component, shown as DEMOD, of the modem 232), detected by a MIMO detector 236 if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120.
  • the receive processor 238 may provide the decoded data to a data sink 239 and provide the decoded control information to the controller/processor 240.
  • the base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244.
  • the base station 110 may include a scheduler 246 to schedule one or more UEs 120 for downlink and/or uplink communications.
  • the modem 232 of the base station 110 may include a modulator and a demodulator.
  • the base station 110 includes a transceiver.
  • the transceiver may include any combination of the antenna(s) 234, the modem(s) 232, the MIMO detector 236, the receive processor 238, the transmit processor 220, and/or the TX MIMO processor 230.
  • the transceiver may be used by a processor (e.g., the controller/processor 240) and the memory 242 to perform aspects of any of the methods described herein (e.g., with reference to Figs. 9-15).
  • the controller/processor 240 of the base station 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig. 2 may perform one or more techniques associated with HARQ-ACK codebook retransmission for multi -DCI based multi-TRP, as described in more detail elsewhere herein.
  • the controller/processor 240 of the base station 110, the controller/processor 280 of the UE 120, and/or any other component(s) of Fig. 2 may perform or direct operations of, for example, process 1200 of Fig. 12, process 1300 of Fig. 13, and/or other processes as described herein.
  • the memory 242 and the memory 282 may store data and program codes for the base station 110 and the UE 120, respectively.
  • the memory 242 and/or the memory 282 may include a non-transitory computer-readable medium storing one or more instructions (e.g., code and/or program code) for wireless communication.
  • the one or more instructions when executed (e.g., directly, or after compiling, converting, and/or interpreting) by one or more processors of the base station 110 and/or the UE 120, may cause the one or more processors, the UE 120, and/or the base station 110 to perform or direct operations of, for example, process 1200 of Fig. 12, process 1300 of Fig. 13, and/or other processes as described herein.
  • executing instructions may include running the instructions, converting the instructions, compiling the instructions, and/or interpreting the instructions, among other examples.
  • a network entity described herein is the base station 110, is included in the base station 110, or includes one or more components of the base station 110 shown in Fig. 2.
  • a TRP described herein is the base station 110, is included in the base station 110, or includes one or more components of the base station 110 shown in Fig. 2.
  • the UE 120 includes means for receiving, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot; and/or means for transmitting, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • the means for the UE 120 to perform operations described herein may include, for example, one or more of communication manager 140, antenna 252, modem 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, controller/processor 280, or memory 282.
  • a network entity includes means for transmitting, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ- ACK codebook associated with a second CORESET pool index configured for the UE.
  • the network entity further includes means for receiving, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the HARQ-ACK codebook to be retransmitted in the second slot being the first HARQ-ACK codebook.
  • the means for the network entity to perform operations described herein may include, for example, one or more of communication manager 150, transmit processor 220, TX MIMO processor 230, modem 232, antenna 234, MIMO detector 236, receive processor 238, controller/processor 240, memory 242, or scheduler 246.
  • Fig. 2 While blocks in Fig. 2 are illustrated as distinct components, the functions described above with respect to the blocks may be implemented in a single hardware, software, or combination component or in various combinations of components.
  • the functions described with respect to the transmit processor 264, the receive processor 258, and/or the TX MIMO processor 266 may be performed by or under the control of the controller/processor 280.
  • Fig. 2 is provided as an example. Other examples may differ from what is described with regard to Fig. 2.
  • a network node may be implemented in an aggregated or disaggregated architecture.
  • RAN radio access network
  • a base station such as a Node B (NB), an evolved NB (eNB), an NR base station, a 5G NB, an access point (AP), a TRP, or a cell, among other examples
  • a base station may be implemented as an aggregated base station (also known as a standalone base station or a monolithic base station) or a disaggregated base station.
  • Network entity or “network node” may refer to a disaggregated base station, or to one or more units of a disaggregated base station (such as one or more CUs, one or more DUs, one or more RUs, or a combination thereof).
  • An aggregated base station may be configured to utilize a radio protocol stack that is physically or logically integrated within a single RAN node (e.g., within a single device or unit).
  • a disaggregated base station e.g., a disaggregated network node
  • a CU may be implemented within a network node, and one or more DUs may be co-located with the CU, or alternatively, may be geographically or virtually distributed throughout one or multiple other network nodes.
  • the DUs may be implemented to communicate with one or more RUs.
  • Each of the CU, DU, and RU also can be implemented as virtual units, such as a virtual central unit (VCU), a virtual distributed unit (VDU), or a virtual radio unit (VRU), among other examples.
  • VCU virtual central unit
  • VDU virtual distributed unit
  • VRU virtual radio unit
  • Base station-type operation or network design may consider aggregation characteristics of base station functionality.
  • disaggregated base stations may be utilized in an IAB network, an open radio access network (O-RAN (such as the network configuration sponsored by the O-RAN Alliance)), or a virtualized radio access network (vRAN, also known as a cloud radio access network (C-RAN)) to facilitate scaling of communication systems by separating base station functionality into one or more units that can be individually deployed.
  • a disaggregated base station may include functionality implemented across two or more units at various physical locations, as well as functionality implemented for at least one unit virtually, which can enable flexibility in network design.
  • the various units of the disaggregated base station can be configured for wired or wireless communication with at least one other unit of the disaggregated base station.
  • Fig. 3 is a diagram illustrating an example disaggregated base station architecture 300, in accordance with the present disclosure.
  • the disaggregated base station architecture 300 may include a CU 310 that can communicate directly with a core network 320 via a backhaul link, or indirectly with the core network 320 through one or more disaggregated control units (such as a Near-RT RIC 325 via an E2 link, or a Non-RT RIC 315 associated with a Service Management and Orchestration (SMO) Framework 305, or both).
  • a CU 310 may communicate with one or more DUs 330 via respective midhaul links, such as through Fl interfaces.
  • Each of the DUs 330 may communicate with one or more RUs 340 via respective fronthaul links.
  • Each of the RUs 340 may communicate with one or more UEs 120 via respective radio frequency (RF) access links.
  • RF radio frequency
  • Each of the units may include one or more interfaces or be coupled with one or more interfaces configured to receive or transmit signals, data, or information (collectively, signals) via a wired or wireless transmission medium.
  • Each of the units, or an associated processor or controller providing instructions to one or multiple communication interfaces of the respective unit, can be configured to communicate with one or more of the other units via the transmission medium.
  • each of the units can include a wired interface, configured to receive or transmit signals over a wired transmission medium to one or more of the other units, and a wireless interface, which may include a receiver, a transmitter or transceiver (such as an RF transceiver), configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other units.
  • a wireless interface which may include a receiver, a transmitter or transceiver (such as an RF transceiver), configured to receive or transmit signals, or both, over a wireless transmission medium to one or more of the other units.
  • the CU 310 may host one or more higher layer control functions.
  • control functions can include radio resource control (RRC) functions, packet data convergence protocol (PDCP) functions, or service data adaptation protocol (SDAP) functions, among other examples.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • SDAP service data adaptation protocol
  • Each control function can be implemented with an interface configured to communicate signals with other control functions hosted by the CU 310.
  • the CU 310 may be configured to handle user plane functionality (for example, Central Unit - User Plane (CU-UP) functionality), control plane functionality (for example, Central Unit - Control Plane (CU-CP) functionality), or a combination thereof.
  • the CU 310 can be logically split into one or more CU-UP units and one or more CU-CP units.
  • a CU-UP unit can communicate bidirectionally with a CU-CP unit via an interface, such as the El interface when implemented in an O-RAN configuration.
  • the CU 310 can be implemented to communicate with a DU 330, as necessary, for network control and signaling.
  • Each DU 330 may correspond to a logical unit that includes one or more base station functions to control the operation of one or more RUs 340.
  • the DU 330 may host one or more of a radio link control (RLC) layer, a medium access control (MAC) layer, and one or more high physical (PHY) layers depending, at least in part, on a functional split, such as a functional split defined by the 3GPP.
  • the one or more high PHY layers may be implemented by one or more modules for forward error correction (FEC) encoding and decoding, scrambling, and modulation and demodulation, among other examples.
  • FEC forward error correction
  • the DU 330 may further host one or more low PHY layers, such as implemented by one or more modules for a fast Fourier transform (FFT), an inverse FFT (iFFT), digital beamforming, or physical random access channel (PRACH) extraction and filtering, among other examples.
  • FFT fast Fourier transform
  • iFFT inverse FFT
  • PRACH physical random access channel
  • Each layer (which also may be referred to as a module) can be implemented with an interface configured to communicate signals with other layers (and modules) hosted by the DU 330, or with the control functions hosted by the CU 310.
  • Each RU 340 may implement lower-layer functionality.
  • an RU 340, controlled by a DU 330 may correspond to a logical node that hosts RF processing functions or low-PHY layer functions, such as performing an FFT, performing an iFFT, digital beamforming, or PRACH extraction and filtering, among other examples, based on a functional split (for example, a functional split defined by the 3GPP), such as a lower layer functional split.
  • a functional split for example, a functional split defined by the 3GPP
  • each RU 340 can be operated to handle over the air (OTA) communication with one or more UEs 120.
  • OTA over the air
  • the SMO Framework 305 may be configured to support RAN deployment and provisioning of non-virtualized and virtualized network elements. For non-virtualized network elements, the SMO Framework 305 may be configured to support the deployment of dedicated physical resources for RAN coverage requirements, which may be managed via an operations and maintenance interface (such as an 01 interface).
  • the SMO Framework 305 may be configured to interact with a cloud computing platform (such as an open cloud (O-Cloud) platform 390) to perform network element life cycle management (such as to instantiate virtualized network elements) via a cloud computing platform interface (such as an 02 interface).
  • a cloud computing platform such as an open cloud (O-Cloud) platform 390
  • network element life cycle management such as to instantiate virtualized network elements
  • cloud computing platform interface such as an 02 interface
  • virtualized network elements can include, but are not limited to, CUs 310, DUs 330, RUs 340, non-RT RICs 315, and Near-RT RICs 325.
  • the SMO Framework 305 can communicate with a hardware aspect of a 4G RAN, such as an open eNB (O-eNB) 311, via an 01 interface.
  • OF-eNB open eNB
  • the SMO Framework 305 can communicate directly with each of one or more RUs 340 via a respective 01 interface.
  • the SMO Framework 305 also may include a Non-RT RIC 315 configured to support functionality of the SMO Framework 305.
  • the Non-RT RIC 315 may be configured to include a logical function that enables non-real-time control and optimization of RAN elements and resources, Artificial Intelligence/Machine Learning (AI/ML) workflows including model training and updates, or policy-based guidance of applications/features in the Near-RT RIC 325.
  • the Non-RT RIC 315 may be coupled to or communicate with (such as via an Al interface) the Near-RT RIC 325.
  • the Near-RT RIC 325 may be configured to include a logical function that enables near-realtime control and optimization of RAN elements and resources via data collection and actions over an interface (such as via an E2 interface) connecting one or more CUs 310, one or more DUs 330, or both, as well as an O-eNB, with the Near-RT RIC 325.
  • the Non-RT RIC 315 may receive parameters or external enrichment information from external servers. Such information may be utilized by the Near-RT RIC 325 and may be received at the SMO Framework 305 or the Non-RT RIC 315 from non-network data sources or from network functions.
  • the Non-RT RIC 315 or the Near-RT RIC 325 may be configured to tune RAN behavior or performance.
  • the Non-RT RIC 315 may monitor long-term trends and patterns for performance and employ AI/ML models to perform corrective actions through the SMO Framework 305 (such as reconfiguration via an 01 interface) or via creation of RAN management policies (such as Al interface policies).
  • Fig. 3 is provided as an example. Other examples may differ from what is described with regard to Fig. 3.
  • FIG. 4 is a diagram illustrating an example logical architecture of a distributed RAN 400, in accordance with the present disclosure.
  • a 5G access node 405 may include an access node controller 410.
  • the access node controller 410 may be a CU of the distributed RAN 400.
  • a backhaul interface to a 5G core network 415 may terminate at the access node controller 410.
  • the 5G core network 415 may include a 5G control plane component 420 and a 5G user plane component 425 (e.g., a 5G gateway), and the backhaul interface for one or both of the 5G control plane and the 5G user plane may terminate at the access node controller 410.
  • a backhaul interface to one or more neighbor access nodes 430 may terminate at the access node controller 410.
  • the access node controller 410 may include and/or may communicate with one or more TRPs 435 (e.g., via an Fl Control (Fl-C) interface and/or an Fl User (Fl-U) interface).
  • a TRP 435 may be a DU of the distributed RAN 400.
  • a TRP 435 may correspond to a base station 110 described above in connection with Fig. 1.
  • different TRPs 435 may be included in different base stations 110.
  • a base station 110 may include a CU (e.g., access node controller 410) and/or one or more DUs (e.g., one or more TRPs 435).
  • a TRP 435 may be referred to as a cell, a panel, an antenna array, or an array.
  • a TRP 435 may be connected to a single access node controller 410 or to multiple access node controllers 410.
  • a dynamic configuration of split logical functions may be present within the architecture of distributed RAN 400.
  • a PDCP layer, an RLC layer, and/or a MAC layer may be configured to terminate at the access node controller 410 or at a TRP 435.
  • multiple TRPs 435 may transmit communications (e.g., the same communication or different communications) in the same transmission time interval (TTI) (e.g., a slot, a mini -slot, a subframe, or a symbol) or different TTIs using different quasi co-location (QCU) relationships (e.g., different spatial parameters, different transmission configuration indicator (TCI) states, different precoding parameters, and/or different beamforming parameters).
  • TTI transmission time interval
  • QCU quasi co-location
  • a TCI state may be used to indicate one or more QCU relationships.
  • a TRP 435 may be configured to individually (e.g., using dynamic selection) or jointly (e.g., using joint transmission with one or more other TRPs 435) serve traffic to a UE 120.
  • Fig. 4 is provided as an example. Other examples may differ from what was described with regard to Fig. 4.
  • Fig. 5 is a diagram illustrating an example 500 of multi -TRP communication (sometimes referred to as multi-panel communication), in accordance with the present disclosure. As shown in Fig. 5, multiple TRPs 505 may communicate with the same UE 120. A TRP 505 may correspond to a TRP 435 described above in connection with Fig. 4.
  • the multiple TRPs 505 may communicate with the same UE 120 in a coordinated manner (e.g., using coordinated multipoint transmissions) to improve reliability and/or increase throughput.
  • the TRPs 505 may coordinate such communications via an interface between the TRPs 505 (e.g., a backhaul interface and/or an access node controller 410).
  • the interface may have a smaller delay and/or higher capacity when the TRPs 505 are co-located at the same base station 110 (e.g., when the TRPs 505 are different antenna arrays or panels of the same base station 110), and may have a larger delay and/or lower capacity (as compared to co-location) when the TRPs 505 are located at different base stations 110.
  • the different TRPs 505 may communicate with the UE 120 using different QCL relationships (e.g., different TCI states), different DMRS ports, and/or different layers (e.g., of a multi-layer communication).
  • a single physical downlink control channel may be used to schedule downlink data communications for a single physical downlink shared channel (PDSCH).
  • multiple TRPs 505 e.g., TRP A and TRP B
  • TRP A and TRP B may transmit communications to the UE 120 on the same PDSCH.
  • a communication may be transmitted using a single codeword with different spatial layers for different TRPs 505 (e.g., where one codeword maps to a first set of layers transmitted by a first TRP 505 and maps to a second set of layers transmitted by a second TRP 505).
  • a communication may be transmitted using multiple codewords, where different codewords are transmitted by different TRPs 505 (e.g., using different sets of layers).
  • different TRPs 505 may use different QCL relationships (e.g., different TCI states) for different DMRS ports corresponding to different layers.
  • a first TRP 505 may use a first QCL relationship or a first TCI state for a first set of DMRS ports corresponding to a first set of layers
  • a second TRP 505 may use a second (different) QCL relationship or a second (different) TCI state for a second (different) set of DMRS ports corresponding to a second (different) set of layers.
  • a TCI state in DCI may indicate the first QCL relationship (e.g., by indicating a first TCI state) and the second QCL relationship (e.g., by indicating a second TCI state).
  • the first and the second TCI states may be indicated using a TCI field in the DCI.
  • the TCI field can indicate a single TCI state (for single-TRP transmission) or multiple TCI states (for multi-TRP transmission as discussed here) in this multi-TRP transmission mode (e.g., Mode 1).
  • a second multi-TRP transmission mode (e.g., Mode 2), multiple PDCCHs may be used to schedule downlink data communications for multiple corresponding PDSCHs (e.g., one PDCCH for each PDSCH).
  • a first PDCCH may schedule a first codeword to be transmitted by a first TRP 505
  • a second PDCCH may schedule a second codeword to be transmitted by a second TRP 505.
  • first DCI (e.g., transmitted by the first TRP 505) may schedule a first PDSCH communication associated with a first set of DMRS ports with a first QCL relationship (e.g., indicated by a first TCI state) for the first TRP 505, and second DCI (e.g., transmitted by the second TRP 505) may schedule a second PDSCH communication associated with a second set of DMRS ports with a second QCL relationship (e.g., indicated by a second TCI state) for the second TRP 505.
  • DCI (e.g., having DCI format 1 0 or DCI format 1 1) may indicate a corresponding TCI state for a TRP 505 corresponding to the DCI.
  • the TCI field of the DCI indicates the corresponding TCI state (e.g., the TCI field of the first DCI indicates the first TCI state and the TCI field of the second DCI indicates the second TCI state).
  • the second multi -TRP transmission mode (e.g., Mode 2) may also be referred to as “multi-DCI based multi-TRP.”
  • Fig. 5 is provided as an example. Other examples may differ from what is described with respect to Fig. 5.
  • Fig. 6 is a diagram illustrating an example 600 of TRP differentiation at a UE based at least in part on a CORESET pool index, in accordance with the present disclosure.
  • a CORESET pool index (or CORESETPoolIndex) value may be used by a UE (e.g., UE 120) to identify a TRP associated with an uplink grant received on a PDCCH.
  • CORESET may refer to a control region that is structured to support an efficient use of resources, such as by flexible configuration or reconfiguration of resources for one or more PDCCHs associated with a UE.
  • a CORESET may occupy the first symbol of an orthogonal frequency division multiplexing (OFDM) slot, the first two symbols of an OFDM slot, or the first three symbols of an OFDM slot.
  • OFDM orthogonal frequency division multiplexing
  • a CORESET may include multiple resource blocks (RBs) in the frequency domain, and either one, two, or three symbols in the time domain.
  • a quantity of resources included in a CORESET may be flexibly configured, such as by using RRC signaling to indicate a frequency domain region (for example, a quantity of RBs) or a time domain region (for example, a quantity of symbols) for the CORESET.
  • a UE 120 may be configured with multiple CORESETs in a given serving cell.
  • Each CORESET configured for the UE 120 may be associated with a CORESET identifier (CORESET ID).
  • CORESET ID CORESET identifier
  • a first CORESET configured for the UE 120 may be associated with CORESET ID 1
  • a second CORESET configured for the UE 120 may be associated with CORESET ID 2
  • a third CORESET configured for the UE 120 may be associated with CORESET ID 3
  • a fourth CORESET configured for the UE 120 may be associated with CORESET ID 4.
  • each CORESET pool may be associated with a CORESET pool index.
  • CORESET ID 1 and CORESET ID 2 may be grouped into CORESET pool index 0, and CORESET ID 3 and CORESET ID 4 may be grouped into CORESET pool index 1.
  • each CORESET pool index value may be associated with a particular TRP 605.
  • a first TRP 605 (TRP A) may be associated with CORESET pool index 0 and a second TRP 605 (TRP B) may be associated with CORESET pool index 1.
  • the UE 120 may be configured by a higher layer parameter, such as PDCCH-Config, with information identifying an association between a TRP and a CORESET pool index value assigned to the TRP. Accordingly, the UE 120 may identify the TRP that transmitted DCI to the UE 120 by determining the CORESET ID of the CORESET in which the PDCCH carrying the DCI was transmitted, determining the CORESET pool index value associated with the CORESET pool in which the CORESET ID is included, and identifying the TRP associated with the CORESET pool index value. Multi-TRP operation may be defined for the UE 120 in a given component carrier (CC) by configuring two CORESET pool index values in different CORESETs in an active bandwidth part (BWP) of the CC. In some examples, if a CORESET is not configured with a CORESET pool index value, a CORESET pool index value of 0 may be assumed for that CORESET.
  • CC component carrier
  • BWP active bandwidth part
  • Fig. 6 is provided as an example. Other examples may differ from what is described with respect to Fig. 6.
  • Fig. 7 is a diagram illustrating an example 700 of a separate hybrid automatic repeat request (HARQ) feedback mode for multi-DCI based multi-TRP, in accordance with the present disclosure.
  • a UE may be configured in a joint HARQ feedback mode or a separate HARQ feedback mode for multi-DCI based multi-TRP.
  • joint acknowledgement (ACK) and/or negative acknowledgement (NACK) (ACK/NACK) feedback for downlink communications (e.g., PDSCH communications) from different TRPs may be carried on the same physical uplink control channel (PUCCH) resource.
  • PUCCH physical uplink control channel
  • ACK/NACK feedback for downlink communications (e.g., PDSCH communications) from different TRPs may be carried on different PUCCH resources.
  • the UE separately performs HARQ-ACK reporting procedures for the first CORESET pool index (e.g., CORESET pool index 0) and the separate CORESET pool index (e.g., CORESET pool index 1). CCs that are not configured with a CORESET pool index value may be assumed to be part of CORESET pool index 0. CCs that are configured with two CORESET pool index values may be considered two times for HARQ-ACK reporting.
  • the first CORESET pool index e.g., CORESET pool index 0
  • the separate CORESET pool index e.g., CORESET pool index 1
  • CCs that are not configured with a CORESET pool index value may be assumed to be part of CORESET pool index 0.
  • CCs that are configured with two CORESET pool index values may be considered two times for HARQ-ACK reporting.
  • a UE may receive PDSCH communications associated with a first CORESET pool index value (CORESET pool index 0) and PDSCH communications associated with a second CORESET pool index value (CORESET pool index 1).
  • the PDSCH communications associated with CORESET pool index 0 may be received from a first TRP (TRP0), and the PDSCH communications associated with CORESET pool index 1 may be received from a second TRP (TRP1).
  • the UE may transmit ACK/NACK feedback for the PDSCH communications associated with CORESET pool index 0 in a first HARQ-ACK codebook (Codebook 1), and the UE may transmit ACK/NACK feedback for the PDSCH communications associated with CORESET pool index 1 in a second HARQ-ACK codebook (Codebook 2).
  • the UE may use first PUCCH resources to transmit Codebook 1 (e.g., to TRPO), and the UE may use second PUCCH resources to transmit Codebook 2 (e.g., to TRP1).
  • first PUCCH resources to transmit Codebook 1
  • Codebook 2 e.g., to TRP1
  • Fig. 7 is provided as an example. Other examples may differ from what is described with respect to Fig. 7.
  • Fig. 8 is a diagram illustrating an example 800 of HARQ-ACK codebook retransmission, in accordance with the present disclosure.
  • DCI may trigger retransmission of a previously scheduled HARQ-ACK codebook.
  • the DCI format e.g., DCI format 1 1 or DCI format 1 2
  • the DCI does not schedule a PDSCH communication, but instead triggers retransmission of a HARQ-ACK codebook that the UE has transmitted, would have transmitted (e.g., the scheduled HARQ-ACK codebook transmission is canceled or dropped), or is scheduled to transmit in a previously scheduled PUCCH or physical uplink shared channel (PUSCH) communication.
  • PUSCH physical uplink shared channel
  • the UE may receive the DCI that indicates HARQ-ACK codebook retransmission (e.g., DCI format 1_1/1_2 with the HARQ-ACK retransmission field set to 1) in slot n, and the DCI may trigger retransmission of a first HARQ-ACK codebook scheduled in slot m.
  • the value of I may be within a certain range (e.g., ⁇ -7, -6, . . . , 23, 24 ⁇ ).
  • the MCS field in the DCI may be used to indicate the value of /, as the MCS field is not needed to indicate an MCS because no PDSCH communication is scheduled by the DCI.
  • the slot m may be before the slot n in which the DCI is received. In such cases, the UE may have transmitted the HARQ-ACK codebook that was scheduled in slot m or the UE may have dropped or canceled the transmission of the HARQ-ACK codebook.
  • the slot m may be after the slot n in which the DCI is received (e.g., when the value of I indicated in the DCI is negative).
  • the DCI may trigger retransmission of a HARQ-ACK codebook scheduled to be transmitted in a future PUCCH or PUSCH communication.
  • the DCI may indicate an offset k between the slot n in which the DCI is received and a slot n + k in which the HARQ-ACK codebook is to be retransmitted.
  • the DCI may indicate the value of k in a KI field (e.g., a “PDSCH-to-HARQ feedback timing indicator” field) of the DCI.
  • the slot n + k may be after the slot m.
  • the UE may transmit (e.g., re-transmit) the first PUCCH codebook scheduled in slot m.
  • the priority of the PUCCH/PUSCH with the first HARQ-ACK in slot m may be the same as the value of the priority indicator field of the DCI.
  • the slots and offsets n, m, I, and k may refer to subslots and sub-slot offsets.
  • Fig. 8 is provided as an example. Other examples may differ from what is described with respect to Fig. 8.
  • resources for transmitting only one HARQ-ACK codebook may be scheduled in one slot or one sub-slot.
  • indicating the slot m e.g., by indicating the offset I in the DCI
  • indicating the slot m may uniquely identify the HARQ-ACK to be retransmitted.
  • there may be two HARQ-ACK codebooks (corresponding to the two CORESET pool index values) scheduled in the same slot.
  • indicating the slot m in DCI that triggers HARQ-ACK codebook retransmission may not be sufficient to identify the HARQ-ACK codebook to be transmitted, as there may be two HARQ-ACK codebooks scheduled in slot m.
  • the network e.g., the TRPs
  • Some techniques and apparatuses described herein enable a UE to receive, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot.
  • the UE may transmit, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index.
  • the UE may determine whether to transmit the first HARQ-ACK codebook or the second HARQ-ACK codebook, based at least in part on the CORESET in which the DCI is received, which of the first HARQ- ACK codebook and/or the second HARQ-ACK codebook is/are scheduled in the first slot, and/or an indication included in the DCI.
  • confusion between the UE and the network as to which HARQ-ACK codebook is to be retransmitted may be avoided, and reliability of the HARQ-ACK codebook retransmission may be increased.
  • example 900 is a diagram illustrating an example 900 associated with HARQ-ACK codebook retransmission for multi-DCI based multi-TRP, in accordance with the present disclosure.
  • example 900 includes a first TRP 905-1, a second TRP 905-2, and a UE 120.
  • the TRPs 905 and UE 120 may be included in a wireless network, such as wireless network 100.
  • the TRPs 905 and the UE 120 may communicate via a wireless access link, which may include an uplink and a downlink.
  • the TRPs 905 may communicate with the UE 120 using multi-DCI based multi-TRP communications.
  • the first TRP 905-1 may be associated with a first CORESET pool index (e.g., CORESET pool index 0)
  • the second TRP 905-2 may be associated with a second CORESET pool index (e.g., CORESET pool index 1).
  • the UE 120 may be configured with one or more CORESETs associated with the first CORESET pool index (e.g., CORESET pool index 0) and one or more CORESETs associated with the second CORESET pool index (e.g., CORESET pool index 1).
  • the UE 120 may be configured with separate HARQ feedback reporting for the first CORESET pool index (e.g., CORESET pool index 0) and the second CORESET pool index (e.g., CORESET pool index 1).
  • the UE 120 may receive DCI including a HARQ-ACK retransmission indication for the first TRP 905-1 or the second TRP 905-2.
  • the first TRP 905-1 may transmit, and the UE 120 may receive, the DCI including the HARQ-ACK retransmission indication in a CORESET associated with the first CORESET pool index.
  • the second TRP 905-2 may transmit, and the UE 120 may receive, the DCI including the HARQ-ACK retransmission indication in a CORESET associated with the second CORESET pool index.
  • the DCI may include an indication that a HARQ-ACK codebook scheduled in a first slot (m) is to be retransmitted in a second slot (n + k).
  • the DCI may be received in a third slot (ri).
  • the DCI may be DCI format 1 1 or DCI format 1 2 that includes a HARQ-retransmission indicator field with a value of 1.
  • the DCI may include an indication of a first offset I between slot m and slot n.
  • the offset I may be indicated in the MCS field in the DCI.
  • the value of I may be within in a range (e.g., between ⁇ - 7, -6, . . . , 23, 24 ⁇ ) associated with the offset I.
  • a positive value of I may indicate that the HARQ-ACK codebook to be retransmitted was scheduled in a slot m that is prior to the slot n in which the DCI is received.
  • a negative value of I may indicate that the HARQ-ACK codebook to be retransmitted is scheduled in a slot m that is after the slot n in which the DCI is received.
  • the DCI may include an indication of a second offset k between the slot n in which the DCI is received and the slot n + k in which the HARQ-ACK codebook is to be retransmitted.
  • the value of k may be indicated in the KI field (e.g., the PDSCH-to-HARQ feedback timing indicator field) of the DCI.
  • the slot n + k may be after the slot m.
  • the UE 120 may determine the HARQ-ACK codebook to be retransmitted in connection with receiving the DCI.
  • the DCI indicates that a HARQ codebook scheduled in the slot m is to be retransmitted in slot n + k.
  • a first HARQ-ACK codebook associated with the first CORESET pool index and/or a second HARQ-ACK codebook associated with the second CORESET pool index may be scheduled in the slot m.
  • both the first and second HARQ-ACK codebooks may be scheduled (e.g., in respective PUCCH or PUSCH resources) in the slot m, or a single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook may be scheduled in the slot m.
  • the UE 120 in connection with receiving the DCI, may determine which of the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index is to be retransmitted in the slot n + k.
  • the UE 120 may determine the HARQ-ACK codebook to be retransmitted based at least in part on the CORESET pool index value of the CORESET in which the DCI is received. In this case, the UE 120 may determine that the HARQ-ACK codebook to be retransmitted is the HARQ-ACK codebook, scheduled in the slot m, that is associated with the same CORESET pool index as the CORESET in which the DCI is received.
  • the UE 120 may determine that the HARQ-ACK codebook to be retransmitted is the first HARQ-ACK codebook associated with the first CORESET pool index. If the DCI is received (e.g., from the second TRP 905-2) in a CORESET associated with the second CORESET pool index, the UE 120 may determine that the HARQ-ACK codebook to be retransmitted is the second HARQ-ACK codebook associated with the second CORESET pool index.
  • the UE 120 may determine whether one HARQ-ACK codebook (e.g., the first or second HARQ-ACK codebook) is scheduled in the slot m or both HARQ-ACK codebooks (e.g., the first and second HARQ-ACK codebook) are scheduled in slot m.
  • the UE 120 may determine that the single HARQ-ACK codebook scheduled in the slot m (e.g., the first HARQ-ACK codebook or the second HARQ-ACK codebook) is the HARQ-ACK codebook to be retransmitted.
  • the UE 120 may determine that the HARQ-ACK codebook to be transmitted is the HARQ-ACK codebook (e.g., the first or second HARQ-ACK codebook) associated with the same CORESET pool index as the CORESET in which the DCI is received.
  • the HARQ-ACK codebook e.g., the first or second HARQ-ACK codebook
  • cross-TRP triggering may be used to trigger retransmission of a HARQ-ACK codebook when only one HARQ-ACK codebook is scheduled in a slot.
  • the first TRP 905-1 may transmit the DCI to the UE 120 (e.g., in a CORESET associated with the first CORESET pool index) to trigger retransmission of the second HARQ-ACK codebook.
  • the DCI may include an indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • the UE 120 may determine whether the HARQ-ACK codebook to be retransmitted is the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index based at least in part on the indication, in the DCI, of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • the DCI may include a one-bit indication (e.g., of the first CORESET pool index value or the second CORESET pool index value) that indicates whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • the indication of the first CORESET pool index or the second CORESET pool index for the HARQ-ACK codebook to be retransmitted may be included in an existing field of DCI format 1 1 or DCI format 1 2 that is not used when the DCI does not schedule a PDSCH communication.
  • the indication of the first CORESET pool index or the second CORESET pool index for the HARQ-ACK codebook may be included in new data indicator (NDI) field (e.g., an NDI bit), a HARQ request process number field (e.g., a first bit of the HARQ process number field), a frequency domain resource allocation (FDRA) field (e.g., a first bit of the FDRA field), a time domain resource allocation (TDRA) field (e.g., a first bit of the TDRA field), or a redundancy version (RV) field (e.g., a first bit of the RV field) of the DCI.
  • NDI new data indicator
  • NDI new data indicator
  • NDI new data indicator
  • NDI new data indicator
  • HARQ request process number field e.g., a first bit of the HARQ process number field
  • FDRA frequency domain resource allocation
  • TDRA time domain resource allocation
  • RV redundancy version
  • cross-TRP triggering of HARQ-ACK codebook retransmission may be used when there is only one HARQ-ACK codebook scheduled in the slot m or when both of the first and second HARQ-ACK codebooks are scheduled in the slot m.
  • the first TRP 905-1 may transmit, to the UE 120 (e.g., in a CORESET associated with the first CORESET pool index), DCI that indicates that a HARQ-ACK codebook associated with second CORESET pool index is to be retransmitted by the UE 120.
  • the CORESET pool index of the CORESET in which the DCI is received may not be used by the UE 120 to determine which HARQ-ACK codebook scheduled in the slot m is the HARQ-ACK codebook to be retransmitted.
  • the UE 120 may transmit the HARQ-ACK codebook to be retransmitted in the slot n + k, based at least in part on receiving the DCI.
  • UE 120 may determine that the HARQ-ACK codebook scheduled in the slot m, to be retransmitted in slot n + k, is a first HARQ-ACK codebook associated with the first CORESET pool index.
  • the UE 120 may transmit the first HARQ-ACK codebook to the first TRP 905-1 in slot n + k.
  • the first TRP 905-1 may receive the first HARQ-ACK codebook transmitted by the UE in the slot n + k.
  • the UE 120 may transmit the first HARQ-ACK codebook to the first TRP 905-1 in a PUCCH communication.
  • UE 120 may determine that the HARQ-ACK codebook scheduled in the slot m, to be retransmitted in slot n + k, is a second HARQ-ACK codebook associated with the second CORESET pool index. In this case, as shown by reference number 920b, the UE 120 may transmit the second HARQ-ACK codebook to the second TRP 905-2 in slot n + k. The second TRP 905-2 may receive the second HARQ-ACK codebook transmitted by the UE in the slot n + k. For example, the UE 120 may transmit the second HARQ-ACK codebook to the second TRP 905-1 in a PUCCH communication.
  • the UE 120 may receive, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot.
  • the UE 120 may transmit, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index.
  • the UE 120 may determine whether to transmit the first HARQ-ACK codebook or the second HARQ-ACK codebook, based at least in part on the CORESET in which the DCI is received, which of the first HARQ-ACK codebook and/or the second HARQ-ACK codebook is/are scheduled in the first slot, and/or an indication included in the DCI.
  • confusion between the UE 120 and the network as to which HARQ-ACK codebook is to be retransmitted may be avoided, and reliability of the HARQ-ACK codebook retransmission may be increased.
  • Fig. 9 is provided as an example. Other examples may differ from what is described with respect to Fig. 9.
  • Fig. 10 is a diagram illustrating an example 1000 associated with HARQ-ACK codebook retransmission for multi-DCI based multi-TRP, in accordance with the present disclosure.
  • example 1000 includes multi -DCI based multi -TRP communications between a UE, a first TRP, and a second TRP.
  • the first TRP may be associated with a first CORESET pool index (CORESET pool index 0)
  • the second TRP may be associated with a second CORESET pool index (CORESET pool index 1).
  • the UE may be configured with separate HARQ feedback for multi-DCI based multi-TRP.
  • the UE may receive, in a CORESET associated with a CORESET pool index 0, DCI that includes a HARQ-ACK retransmission indication.
  • the first TRP may transmit the DCI to the UE.
  • the UE may receive the DCI in slot n, and the DCI may indicate that a HARQ-ACK codebook in slot m is to be retransmitted in slot n + k.
  • a first HARQ-ACK codebook associated with CORESET pool index value 0 and a second HARQ-ACK codebook associated with CORESET pool index value 1 may be scheduled in slot m.
  • the UE may determine which of the first HARQ-ACK codebook or the second HARQ- ACK codebook is the HARQ-ACK codebook to be re -transmitted based at least in part on the CORESET pool index associated with the CORESET in which the DCI is received/detected.
  • the HARQ-ACK codebook to be retransmitted may be the HARQ-ACK codebook associated with the same CORESET pool index and the CORESET in which the DCI is received by the UE.
  • the UE may determine that the HARQ-ACK codebook to be retransmitted in slot n + k is the first HARQ-ACK codebook based at least in part on the first HARQ-ACK codebook being associated with the same CORESET pool index (e.g., CORESET pool index value 0) as the CORESET in which the DCI is received.
  • the UE may transmit (e.g., to the first TRP) a PUCCH communication including a retransmission of the first HARQ-ACK codebook scheduled in slot m.
  • Fig. 10 is provided as an example. Other examples may differ from what is described with respect to Fig. 10.
  • Fig. 11 is a diagram illustrating an example 1100 associated with HARQ-ACK codebook retransmission for multi-DCI based multi-TRP, in accordance with the present disclosure.
  • example 1100 includes multi-DCI based multi-TRP communications between a UE, a first TRP, and a second TRP.
  • the first TRP may be associated with a first CORESET pool index (CORESET pool index 0)
  • the second TRP may be associated with a second CORESET pool index (CORESET pool index 1).
  • the UE may be configured with separate HARQ feedback for multi-DCI based multi-TRP.
  • Fig. 11 As shown in Fig.
  • the UE may receive, in a CORESET associated with a CORESET pool index 0, DCI that includes a HARQ-ACK retransmission indication.
  • the first TRP may transmit the DCI to the UE.
  • the UE may receive the DCI in slot n, and the DCI may indicate that a HARQ-ACK codebook in slot m is to be retransmitted in slot n + k.
  • the DCI may include an indication of the CORESET pool index value for the HARQ-ACK codebook to be transmitted.
  • the DCI may include an indication of CORESET pool index value 1 for the HARQ-ACK codebook to be retransmitted (e.g., an indication that the HARQ-ACK codebook to be retransmitted is associated with CORESET pool index value 1).
  • a first HARQ-ACK codebook associated with CORESET pool index value 0 and a second HARQ-ACK codebook associated with CORESET pool index value 1 may be scheduled in slot m.
  • the UE may determine which of the first HARQ-ACK codebook or the second HARQ- ACK codebook is the HARQ-ACK codebook to be re -transmitted based at least in part on the indication, in the DCI, of the CORESET pool index value for the HARQ-ACK codebook to be retransmitted.
  • the HARQ-ACK codebook to be retransmitted may be the HARQ-ACK codebook associated with the same CORESET pool index and the CORESET in which the DCI is received by the UE.
  • the UE may determine that the HARQ-ACK codebook to be retransmitted in slot n + k is the second HARQ-ACK codebook based at least in part on the DCI indicating that the HARQ-ACK codebook to be retransmitted is associated with CORESET pool index value 1.
  • the UE may transmit (e.g., to the second TRP) a PUCCH communication including a retransmission of the second HARQ-ACK codebook scheduled in slot m.
  • Fig. 11 is provided as an example. Other examples may differ from what is described with respect to Fig. 11.
  • Fig. 12 is a diagram illustrating an example process 1200 performed, for example, by a UE, in accordance with the present disclosure.
  • Example process 1200 is an example where the UE (e.g., UE 120) performs operations associated with HARQ-ACK codebook retransmission for multi-DCI based multi-TRP.
  • process 1200 may include receiving, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot (block 1210).
  • the UE e.g., using communication manager 140 and/or reception component 1402, depicted in Fig. 14
  • process 1200 may include transmitting, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index (block 1220).
  • the UE e.g., using communication manager 140 and/or transmission component 1404, depicted in Fig. 14
  • Process 1200 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the UE is configured with separate HARQ feedback reporting for the first CORESET pool index and the second CORESET pool index.
  • the DCI is DCI format 1 1 or DCI format 1 2 that includes a HARQ-ACK retransmission indicator field with a value of 1.
  • the DCI includes an indication of a first offset between the first slot and a third slot in which the DCI is received, and an indication of a second offset between the third slot in which the DCI is received and the second slot.
  • transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index includes transmitting, in the second slot, one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is associated with a same CORESET pool index as the CORESET in which the DCI is received.
  • transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index includes transmitting, in the second slot and in connection with a single HARQ-ACK codebook being scheduled in the first slot, the single HARQ-ACK codebook that is scheduled in the first slot, and the single HARQ-ACK codebook that is scheduled in the first slot is one of the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index.
  • the CORESET in which the DCI is received is associated with the first CORESET pool index
  • the single HARQ-ACK codebook that is scheduled in the first slot is the second HARQ-ACK codebook associated with the second CORESET pool index.
  • transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index includes transmitting, in the second slot and in connection with a single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook being scheduled in the first slot, the single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is scheduled in the first slot, or transmitting, in the second slot and in connection with the first HARQ-ACK codebook and the second HARQ-ACK codebook being scheduled in the first slot, one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is associated with a same CORESET pool index as the CORESET in which the DCI is received.
  • the DCI includes an indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index, and transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index includes transmitting, in the second slot, one of the first HARQ-ACK codebook or the second HARQ-ACK codebook based at least in part on the indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • the indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index is included in a new data indicator field, a hybrid automatic repeat request process number field, a frequency domain resource allocation field, a time domain resource allocation field, or a redundancy version field of the DCI.
  • transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index includes transmitting, in the second slot, the first HARQ-ACK codebook to a first TRP associated with the first CORESET pool index or the second HARQ-ACK codebook to a second TRP associated with the second CORESET pool index.
  • process 1200 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 12. Additionally, or alternatively, two or more of the blocks of process 1200 may be performed in parallel.
  • Fig. 13 is a diagram illustrating an example process 1300 performed, for example, by a network entity, in accordance with the present disclosure.
  • Example process 1300 is an example where the network entity (e.g., TRP 905, base station 110, CU 310, DU 330, RU 340, or a combination thereof) performs operations associated with HARQ-ACK codebook retransmission for multi-DCI based multi-TRP.
  • the network entity e.g., TRP 905, base station 110, CU 310, DU 330, RU 340, or a combination thereof.
  • process 1300 may include transmitting, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE (block 1310).
  • the network entity e.g., using communication manager 1508 and/or transmission component 1504, depicted in Fig.
  • the 15) may transmit, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE, as described above.
  • process 1300 may include receiving, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the HARQ-ACK codebook to be retransmitted in the second slot being the first HARQ-ACK codebook (block 1320).
  • the network entity e.g., using communication manager 1508 and/or reception component 1502, depicted in Fig. 15
  • Process 1300 may include additional aspects, such as any single aspect or any combination of aspects described below and/or in connection with one or more other processes described elsewhere herein.
  • the UE is configured with separate hybrid automatic repeat request (HARQ) feedback reporting for the first CORESET pool index and the second CORESET pool index.
  • HARQ hybrid automatic repeat request
  • the DCI is DCI format 1 1 or DCI format 1 2 that includes a HARQ-ACK retransmission indicator field with a value of 1.
  • the DCI includes an indication of a first offset between the first slot and a third slot in which the DCI is received, and an indication of a second offset between the third slot in which the DCI is received and the second slot.
  • the HARQ-ACK codebook to be re-transmitted is the first HARQ-ACK codebook based at least in part on the first HARQ-ACK codebook being associated with a same CORESET pool index as the CORESET in which the DCI is transmitted.
  • the HARQ-ACK codebook to be re -transmitted, in connection with a single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook being scheduled in the first slot is the single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is scheduled in the first slot, or the HARQ-ACK codebook to be retransmitted, in connection with the first HARQ-ACK codebook and the second HARQ-ACK codebook being scheduled in the first slot, is the first HARQ-ACK codebook based at least in part on the first HARQ-ACK codebook being associated with a same CORESET pool index as the CORESET in which the DCI is transmitted.
  • the HARQ-ACK codebook to be re -transmitted is the second HARQ-ACK codebook associated with the second CORESET pool index in connection with the second HARQ-ACK codebook being the single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is scheduled in the first slot.
  • the DCI includes an indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • process 1300 includes receiving, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the DCI indicating that the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index.
  • the indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index is included in a new data indicator field, a hybrid automatic repeat request process number field, a frequency domain resource allocation field, a time domain resource allocation field, or a redundancy version field of the DCI.
  • Fig. 13 shows example blocks of process 1300, in some aspects, process 1300 may include additional blocks, fewer blocks, different blocks, or differently arranged blocks than those depicted in Fig. 13. Additionally, or alternatively, two or more of the blocks of process 1300 may be performed in parallel.
  • Fig. 14 is a diagram of an example apparatus 1400 for wireless communication.
  • the apparatus 1400 may be a UE, or a UE may include the apparatus 1400.
  • the apparatus 1400 includes a reception component 1402 and a transmission component 1404, which may be in communication with one another (for example, via one or more buses and/or one or more other components).
  • the apparatus 1400 may communicate with another apparatus 1406 (such as a UE, a base station, or another wireless communication device) using the reception component 1402 and the transmission component 1404.
  • the apparatus 1400 may include the communication manager 140.
  • the communication manager 140 may include a determination component 1408, among other examples.
  • the apparatus 1400 may be configured to perform one or more operations described herein in connection with Figs. 9-11. Additionally, or alternatively, the apparatus 1400 may be configured to perform one or more processes described herein, such as process 1200 of Fig. 12, or a combination thereof.
  • the apparatus 1400 and/or one or more components shown in Fig. 14 may include one or more components of the UE described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 14 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non- transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the reception component 1402 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1406.
  • the reception component 1402 may provide received communications to one or more other components of the apparatus 1400.
  • the reception component 1402 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus 1400.
  • the reception component 1402 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2.
  • the transmission component 1404 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1406.
  • one or more other components of the apparatus 1400 may generate communications and may provide the generated communications to the transmission component 1404 for transmission to the apparatus 1406.
  • the transmission component 1404 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus 1406.
  • the transmission component 1404 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the UE described in connection with Fig. 2.
  • the transmission component 1404 may be co-located with the reception component 1402 in a transceiver.
  • the reception component 1402 may receive, in a CORESET associated with a first CORESET pool index or a second CORESET pool index, DCI including an indication that a HARQ-ACK codebook scheduled in a first slot is to be retransmitted in a second slot.
  • the transmission component 1404 may transmit, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • the determination component 1408 may determine whether the HARQ-ACK codebook to be retransmitted is the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index.
  • Fig. 14 The number and arrangement of components shown in Fig. 14 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 14. Furthermore, two or more components shown in Fig. 14 may be implemented within a single component, or a single component shown in Fig. 14 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 14 may perform one or more functions described as being performed by another set of components shown in Fig. 14.
  • Fig. 15 is a diagram of an example apparatus 1500 for wireless communication.
  • the apparatus 1500 may be a network entity, or a network entity may include the apparatus 1500.
  • the apparatus 1500 includes a reception component 1502 and a transmission component 1504, which may be in communication with one another (for example, via one or more buses and/or one or more other components).
  • the apparatus 1500 may communicate with another apparatus 1506 (such as a UE, a base station, or another wireless communication device) using the reception component 1502 and the transmission component 1504.
  • the apparatus 1500 may include the communication manager 1508.
  • the communication manager 1508) may include a determination component 1510, among other examples.
  • the apparatus 1500 may be configured to perform one or more operations described herein in connection with Figs. 9-11. Additionally, or alternatively, the apparatus 1500 may be configured to perform one or more processes described herein, such as process 1300 of Fig. 13, or a combination thereof.
  • the apparatus 1500 and/or one or more components shown in Fig. 15 may include one or more components of the network entity described in connection with Fig. 2. Additionally, or alternatively, one or more components shown in Fig. 15 may be implemented within one or more components described in connection with Fig. 2. Additionally, or alternatively, one or more components of the set of components may be implemented at least in part as software stored in a memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored in a non-transitory computer-readable medium and executable by a controller or a processor to perform the functions or operations of the component.
  • the communication manager 1508 may control and/or otherwise manage one or more operations of the reception component 1502 and/or the transmission component 1504.
  • the communication manager 1508 may include one or more antennas, a modem, a controller/processor, a memory, or a combination thereof, of the base station described in connection with Fig. 2.
  • the communication manager 1508 may be, or be similar to, the communication manager 150 depicted in Figs. 1 and 2.
  • the communication manager 1508 may be configured to perform one or more of the functions described as being performed by the communication manager 150.
  • the communication manager 1508 may include the reception component 1502 and/or the transmission component 1504.
  • the reception component 1502 may receive communications, such as reference signals, control information, data communications, or a combination thereof, from the apparatus 1506.
  • the reception component 1502 may provide received communications to one or more other components of the apparatus 1500.
  • the reception component 1502 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, de-mapping, equalization, interference cancellation, or decoding, among other examples), and may provide the processed signals to the one or more other components of the apparatus 1500.
  • the reception component 1502 may include one or more antennas, a modem, a demodulator, a MIMO detector, a receive processor, a controller/processor, a memory, or a combination thereof, of the network entity described in connection with Fig. 2.
  • the transmission component 1504 may transmit communications, such as reference signals, control information, data communications, or a combination thereof, to the apparatus 1506.
  • one or more other components of the apparatus 1500 may generate communications and may provide the generated communications to the transmission component 1504 for transmission to the apparatus 1506.
  • the transmission component 1504 may perform signal processing on the generated communications (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples), and may transmit the processed signals to the apparatus 1506.
  • the transmission component 1504 may include one or more antennas, a modem, a modulator, a transmit MIMO processor, a transmit processor, a controller/processor, a memory, or a combination thereof, of the network entity described in connection with Fig. 2. In some aspects, the transmission component 1504 may be co-located with the reception component 1502 in a transceiver.
  • the transmission component 1504 may transmit, in a CORESET associated with a first CORESET pool index configured for a UE, DCI including an indication that a HARQ- ACK codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE.
  • the reception component 1502 may receive, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the HARQ-ACK codebook to be retransmitted in the second slot being the first HARQ-ACK codebook.
  • the reception component 1502 may receive, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the DCI indicating that the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index.
  • the determination component 1510 may determine whether the HARQ-ACK codebook to be retransmitted is the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index.
  • Fig. 15 The number and arrangement of components shown in Fig. 15 are provided as an example. In practice, there may be additional components, fewer components, different components, or differently arranged components than those shown in Fig. 15. Furthermore, two or more components shown in Fig. 15 may be implemented within a single component, or a single component shown in Fig. 15 may be implemented as multiple, distributed components. Additionally, or alternatively, a set of (one or more) components shown in Fig. 15 may perform one or more functions described as being performed by another set of components shown in Fig. 15.
  • Aspect 1 A method of wireless communication performed by a user equipment (UE), comprising: receiving, in a control resource set (CORESET) associated with a first CORESET pool index or a second CORESET pool index, downlink control information (DCI) including an indication that a hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook scheduled in a first slot is to be retransmitted in a second slot; and transmitting, in the second slot and in connection with receiving the DCI, a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with the second CORESET pool index.
  • CORESET control resource set
  • DCI downlink control information
  • HARQ-ACK hybrid automatic repeat request acknowledgement
  • Aspect 2 The method of Aspect 1, wherein the UE is configured with separate hybrid automatic repeat request (HARQ) feedback reporting for the first CORESET pool index and the second CORESET pool index.
  • HARQ hybrid automatic repeat request
  • Aspect 3 The method of any of Aspects 1-2, wherein the DCI is DCI format 1 1 or DCI format 1 2 that includes a HARQ-ACK retransmission indicator field with a value of 1.
  • Aspect 4 The method of any of Aspects 1-3, wherein the DCI includes an indication of a first offset between the first slot and a third slot in which the DCI is received, and an indication of a second offset between the third slot in which the DCI is received and the second slot.
  • Aspect 5 The method of any of Aspects 1-4, wherein transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index comprises: transmitting, in the second slot, one of the first HARQ-ACK codebook or the second HARQ- ACK codebook that is associated with a same CORESET pool index as the CORESET in which the DCI is received.
  • Aspect 6 The method of any of Aspects 1-4, wherein transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index comprises: transmitting, in the second slot and in connection with a single HARQ-ACK codebook being scheduled in the first slot, the single HARQ-ACK codebook that is scheduled in the first slot, wherein the single HARQ-ACK codebook that is scheduled in the first slot is one of the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ- ACK codebook associated with the second CORESET pool index.
  • Aspect 7 The method of Aspect 6, wherein the CORESET in which the DCI is received is associated with the first CORESET pool index, and wherein the single HARQ-ACK codebook that is scheduled in the first slot is the second HARQ-ACK codebook associated with the second CORESET pool index.
  • Aspect 8 The method of any of Aspects 1-7, wherein transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index comprises: transmitting, in the second slot and in connection with a single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook being scheduled in the first slot, the single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is scheduled in the first slot; or transmitting, in the second slot and in connection with the first HARQ-ACK codebook and the second HARQ-ACK codebook being scheduled in the first slot, one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is associated with a same CORESET pool index as the CORESET in which the DCI is received.
  • Aspect 9 The method of any of Aspects 1-4, wherein the DCI includes an indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index, and wherein transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index comprises: transmitting, in the second slot, one of the first HARQ-ACK codebook or the second HARQ- ACK codebook based at least in part on the indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • Aspect 10 The method of Aspect 9, wherein the indication of whether the HARQ- ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index is included in a new data indicator field, a hybrid automatic repeat request process number field, a frequency domain resource allocation field, a time domain resource allocation field, or a redundancy version field of the DCI.
  • Aspect 11 The method of any of Aspects 1-10, wherein transmitting, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index or the second HARQ-ACK codebook associated with the second CORESET pool index comprises: transmitting, in the second slot, the first HARQ-ACK codebook to a first transmit receive point (TRP) associated with the first CORESET pool index or the second HARQ-ACK codebook to a second TRP associated with the second CORESET pool index.
  • TRP transmit receive point
  • a method of wireless communication performed by a network entity comprising: transmitting, in a control resource set (CORESET) associated with a first CORESET pool index configured for a user equipment (UE), downlink control information (DCI) including an indication that a hybrid automatic repeat request acknowledgement (HARQ- ACK) codebook scheduled in a first slot is to be retransmitted in a second slot, wherein the HARQ-ACK codebook to be retransmitted in the second slot is one of a first HARQ-ACK codebook associated with the first CORESET pool index or a second HARQ-ACK codebook associated with a second CORESET pool index configured for the UE.
  • CORESET control resource set
  • DCI downlink control information
  • HARQ- ACK hybrid automatic repeat request acknowledgement
  • Aspect 13 The method of Aspect 12, wherein the UE is configured with separate hybrid automatic repeat request (HARQ) feedback reporting for the first CORESET pool index and the second CORESET pool index.
  • HARQ hybrid automatic repeat request
  • Aspect 14 The method of any of Aspects 12-13, wherein the DCI is DCI format 1 1 or DCI format 1 2 that includes a HARQ-ACK retransmission indicator field with a value of 1.
  • Aspect 15 The method of any of Aspects 12-14, wherein the DCI includes an indication of a first offset between the first slot and a third slot in which the DCI is received, and an indication of a second offset between the third slot in which the DCI is received and the second slot.
  • Aspect 16 The method of any of Aspects 12-15, further comprising: receiving, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the HARQ-ACK codebook to be retransmitted in the second slot being the first HARQ-ACK codebook.
  • Aspect 17 The method of Aspect 16, wherein the HARQ-ACK codebook to be retransmitted is the first HARQ-ACK codebook based at least in part on the first HARQ-ACK codebook being associated with a same CORESET pool index as the CORESET in which the DCI is transmitted.
  • Aspect 18 The method of any of Aspects 12-17, wherein: the HARQ-ACK codebook to be re -transmitted, in connection with a single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook being scheduled in the first slot, is the single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is scheduled in the first slot, or the HARQ-ACK codebook to be re -transmitted, in connection with the first HARQ-ACK codebook and the second HARQ-ACK codebook being scheduled in the first slot, is the first HARQ-ACK codebook based at least in part on the first HARQ-ACK codebook being associated with a same CORESET pool index as the CORESET in which the DCI is transmitted.
  • Aspect 19 The method of Aspect 18, wherein the HARQ-ACK codebook to be retransmitted is the second HARQ-ACK codebook associated with the second CORESET pool index in connection with the second HARQ-ACK codebook being the single one of the first HARQ-ACK codebook or the second HARQ-ACK codebook that is scheduled in the first slot.
  • Aspect 20 The method of any of Aspects 12-16, wherein the DCI includes an indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index.
  • Aspect 21 The method of Aspect 20, further comprising: receiving, in the second slot, the first HARQ-ACK codebook associated with the first CORESET pool index, in connection with the DCI indicating that the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index.
  • Aspect 22 The method of any of Aspects 20-21, wherein the indication of whether the HARQ-ACK codebook to be retransmitted is associated with the first CORESET pool index or the second CORESET pool index is included in a new data indicator field, a hybrid automatic repeat request process number field, a frequency domain resource allocation field, a time domain resource allocation field, or a redundancy version field of the DCI.
  • Aspect 23 An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 1-11.
  • Aspect 24 A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of Aspects 1-11.
  • Aspect 25 An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 1-11.
  • Aspect 26 A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 1-11.
  • Aspect 27 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 1-11.
  • Aspect 28 An apparatus for wireless communication at a device, comprising a processor; memory coupled with the processor; and instructions stored in the memory and executable by the processor to cause the apparatus to perform the method of one or more of Aspects 12-22.
  • Aspect 29 A device for wireless communication, comprising a memory and one or more processors coupled to the memory, the one or more processors configured to perform the method of one or more of Aspects 12-22.
  • Aspect 30 An apparatus for wireless communication, comprising at least one means for performing the method of one or more of Aspects 12-22.
  • Aspect 31 A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform the method of one or more of Aspects 12-22.
  • Aspect 32 A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform the method of one or more of Aspects 12-22.
  • the term “component” is intended to be broadly construed as hardware and/or a combination of hardware and software.
  • “Software” shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, and/or functions, among other examples, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.
  • a “processor” is implemented in hardware and/or a combination of hardware and software. It will be apparent that systems and/or methods described herein may be implemented in different forms of hardware and/or a combination of hardware and software. The actual specialized control hardware or software code used to implement these systems and/or methods is not limiting of the aspects. Thus, the operation and behavior of the systems and/or methods are described herein without reference to specific software code, since those skilled in the art will understand that software and hardware can be designed to implement the systems and/or methods based, at least in part, on the description herein.
  • satisfying a threshold may, depending on the context, refer to a value being greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, or the like.
  • “at least one of: a, b, or c” is intended to cover a, b, c, a + b, a + c, b + c, and a + b + c, as well as any combination with multiples of the same element (e.g., a + a, a + a + a, a + a + b, a + a + c, a + b + b, a + c + c, b + b, b + b + b, b + b + c, c + c, and c + c + c, or any other ordering of a, b, and c).
  • the terms “has,” “have,” “having,” or the like are intended to be open-ended terms that do not limit an element that they modify (e.g., an element “having” A may also have B). Further, the phrase “based on” is intended to mean “based, at least in part, on” unless explicitly stated otherwise. Also, as used herein, the term “or” is intended to be inclusive when used in a series and may be used interchangeably with “and/or,” unless explicitly stated otherwise (e.g., if used in combination with “either” or “only one of’).

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Divers aspects de la présente divulgation portent d'une manière générale sur la communication sans fil. Selon certains aspects, un équipement utilisateur (UE) peut recevoir, dans un ensemble de ressources de commande (CORESET) associé à un premier indice de groupe CORESET ou à un second indice de groupe CORESET, des informations de commande de liaison descendante (DCI) comprenant une indication selon laquelle un livre de codes d'accusé de réception de requête automatique de répétition hybride (HARQ-ACK) planifié dans un premier créneau doit être retransmis dans un second créneau. L'UE peut transmettre, dans le second créneau et en relation avec la réception des DCI, un premier livre de codes HARQ-ACK associé au premier indice de groupe CORESET ou à un second livre de codes HARQ-ACK associé au second indice de groupe CORESET. L'invention concerne de nombreux autres aspects.
PCT/US2023/060653 2022-02-08 2023-01-13 Retransmission de livre de codes d'accusé de réception de requête automatique de répétition hybride pour de multiples points d'émission/réception basés sur de multiples informations de commande de liaison descendante WO2023154598A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020247025443A KR20240148333A (ko) 2022-02-08 2023-01-13 다중 다운링크 제어 정보 기반 다중 송수신 포인트에 대한 하이브리드 자동 반복 요청 확인응답 코드북 재송신
CN202380018379.6A CN118592000A (zh) 2022-02-08 2023-01-13 针对基于多下行链路控制信息的多发送接收点的混合自动重传请求确认码本重新发送

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US202263267701P 2022-02-08 2022-02-08
US63/267,701 2022-02-08
US18/153,715 US20230254072A1 (en) 2022-02-08 2023-01-12 Hybrid automatic repeat request acknowledgement codebook retransmission for multiple downlink control information based multiple transmit receive point
US18/153,715 2023-01-12

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021010707A1 (fr) * 2019-07-12 2021-01-21 엘지전자 주식회사 Procédé permettant de transmettre et de recevoir des informations harq-ack dans un système de communication sans fil et dispositif associé
EP3771133A1 (fr) * 2019-07-22 2021-01-27 Comcast Cable Communications, LLC Communication et traitement de données dans les communications sans fil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021010707A1 (fr) * 2019-07-12 2021-01-21 엘지전자 주식회사 Procédé permettant de transmettre et de recevoir des informations harq-ack dans un système de communication sans fil et dispositif associé
EP3993300A1 (fr) * 2019-07-12 2022-05-04 LG Electronics Inc. Procédé permettant de transmettre et de recevoir des informations harq-ack dans un système de communication sans fil et dispositif associé
EP3771133A1 (fr) * 2019-07-22 2021-01-27 Comcast Cable Communications, LLC Communication et traitement de données dans les communications sans fil

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