WO2024152333A1 - Dispositifs, procédés et support de communication - Google Patents

Dispositifs, procédés et support de communication Download PDF

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Publication number
WO2024152333A1
WO2024152333A1 PCT/CN2023/073260 CN2023073260W WO2024152333A1 WO 2024152333 A1 WO2024152333 A1 WO 2024152333A1 CN 2023073260 W CN2023073260 W CN 2023073260W WO 2024152333 A1 WO2024152333 A1 WO 2024152333A1
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WO
WIPO (PCT)
Prior art keywords
uci
period
terminal device
harq process
information
Prior art date
Application number
PCT/CN2023/073260
Other languages
English (en)
Inventor
Lei Chen
Gang Wang
Original Assignee
Nec Corporation
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
Application filed by Nec Corporation filed Critical Nec Corporation
Priority to PCT/CN2023/073260 priority Critical patent/WO2024152333A1/fr
Publication of WO2024152333A1 publication Critical patent/WO2024152333A1/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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • 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
    • H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
    • 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
    • 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
    • H04L1/1864—ARQ related signaling
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling

Definitions

  • Example embodiments of the present disclosure generally relate to the field of communication techniques and in particular, to devices, methods, and a computer readable medium for communication.
  • Configured grant (CG) physical uplink shared channel (PUSCH) is beneficial for meeting some requirements of the XR services since no scheduling request (SR) and buffer status report (BSR) reporting is needed.
  • SR scheduling request
  • BSR buffer status report
  • the enhancement of CG PUSCH is further to be studied.
  • example embodiments of the present disclosure provide devices, methods, and a computer storage medium for communication.
  • a terminal device comprising at least one processor configured to cause the terminal device at least to: receive, from a network device, first configured grant (CG) information indicating a first number of configured CG occasions in each CG period; transmit, to the network device, first uplink control information (UCI) for a first CG period associated with the first CG information, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; receive, from the network device, downlink control information (DCI) indicating to transmit a second UCI associated with the first CG period or the first CG information; and transmit, to the network device, the second UCI based on the DCI.
  • CG configured grant
  • UCI uplink control information
  • DCI downlink control information
  • a network device comprising at least one processor configured to cause the network device at least to: transmit, to a terminal device, first configured grant (CG) information indicating a first number of configured CG occasions in each CG period; determine that a reception of first uplink control information (UCI) for a first CG period associated with the first CG information is failed, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; in accordance with a determination that the reception of the first UCI is failed, transmit, to the terminal device, downlink control information (DCI) indicating to transmit a second UCI associated with the first CG period or the first CG information; and receive, from the terminal device, the second UCI based on the DCI.
  • CG configured grant
  • DCI downlink control information
  • a method of communication comprises: receiving, at a terminal device from a network device, first configured grant (CG) information indicating a first number of configured CG occasions in each CG period; transmitting, to the network device, first uplink control information (UCI) for a first CG period associated with the first CG information, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; receiving, from the network device, downlink control information (DCI) indicating to transmit a second UCI associated with the first CG period or the first CG information; and transmitting, to the network device, the second UCI based on the DCI.
  • CG configured grant
  • DCI downlink control information
  • a method of communication comprises: transmitting, at a network device to a terminal device, first configured grant (CG) information indicating a first number of configured CG occasions in each CG period; determining that a reception of first uplink control information (UCI) for a first CG period associated with the first CG information is failed, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; in accordance with a determination that the reception of the first UCI is failed, transmitting, to the terminal device, downlink control information (DCI) indicating to transmit a second UCI associated with the first CG period or the first CG information; and receiving, from the terminal device, the second UCI based on the DCI.
  • CG configured grant
  • DCI downlink control information
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the third or the fourth aspect above.
  • FIG. 1 illustrates an example communication system in which some embodiments of the present disclosure can be implemented
  • FIG. 2 illustrates a signalling chart illustrating communication process in accordance with some embodiments of the present disclosure
  • FIG. 3A illustrates a schematic diagram of a scenario when a mis-detection of a UCI is happened in accordance with some embodiments of the present disclosure
  • FIG. 3B illustrates a schematic diagram of a DCI scheduling a retransmission in accordance with some embodiments of the present disclosure
  • FIG. 3C illustrates a schematic diagram of a DCI including a hybrid automatic repeat request (HARQ) process number in accordance with some embodiments of the present disclosure
  • FIG. 3D illustrates another schematic diagram of a DCI including a HARQ process number in accordance with some embodiments of the present disclosure
  • FIG. 3E illustrates another schematic diagram of a DCI including a HARQ process number in accordance with some embodiments of the present disclosure
  • FIG. 4A illustrates a schematic diagram of two DCIs associated with two CG periods in accordance with some embodiments of the present disclosure
  • FIG. 4B illustrates a schematic diagram of a DCI including a CG period indication in accordance with some embodiments of the present disclosure
  • FIG. 4C illustrates a schematic diagram of a DCI including a HARQ process number associated with a CG period in accordance with some embodiments of the present disclosure
  • FIG. 5A illustrates a schematic diagram of two DCIs associated with two CG configurations in accordance with some embodiments of the present disclosure
  • FIG. 5B illustrates a schematic diagram of a DCI including a CG configuration indication in accordance with some embodiments of the present disclosure
  • FIG. 5C illustrates a schematic diagram of a DCI including a HARQ process number associated with a CG configuration in accordance with some embodiments of the present disclosure
  • FIG. 6 illustrates a flowchart of an example method implemented at a terminal device in accordance with some embodiments of the present disclosure
  • FIG. 7 illustrates a flowchart of an example method implemented at a network device in accordance with some embodiments of the present disclosure.
  • FIG. 8 illustrates a simplified block diagram of a device that is suitable for implementing embodiments of the present disclosure.
  • references in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
  • first and second etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments.
  • the term “and/or” includes any and all combinations of one or more of the listed terms.
  • values, procedures, or apparatus are referred to as “best, ” “lowest, ” “highest, ” “minimum, ” “maximum, ” or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
  • the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on.
  • NR New Radio
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • NB-IoT Narrow Band Internet of Things
  • the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) , 5.5G, 5G-Advanced networks, or the sixth generation (6G) communication protocols, and/or any other protocols either currently known or to be developed in the future.
  • the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future type communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
  • terminal device refers to any device having wireless or wired communication capabilities.
  • Examples of terminal device include, but not limited to, user equipment (UE) , personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs) , portable computers, tablets, wearable devices, internet of things (IoT) devices, Ultra-reliable and Low Latency Communications (URLLC) devices, Internet of Everything (IoE) devices, machine type communication (MTC) devices, device on vehicle for V2X communication where X means pedestrian, vehicle, or infrastructure/network, devices for Integrated Access and Backhaul (IAB) , Space borne vehicles or Air borne vehicles in Non-terrestrial networks (NTN) including Satellites and High Altitude Platforms (HAPs) encompassing Unmanned Aircraft Systems (UAS) , eXtended Reality (XR) devices including different types of realities such as Augmented Reality (AR) , Mixed Reality (MR) and Virtual Reality (VR) , the unmanned aerial vehicle (UAV) commonly
  • UE user equipment
  • the ‘terminal device’ can further has ‘multicast/broadcast’ feature, to support public safety and mission critical, V2X applications, transparent IPv4/IPv6 multicast delivery, IPTV, smart TV, radio services, software delivery over wireless, group communications and IoT applications. It may also be incorporated one or multiple Subscriber Identity Module (SIM) as known as Multi-SIM.
  • SIM Subscriber Identity Module
  • the term “terminal device” can be used interchangeably with a UE, a mobile station, a subscriber station, a mobile terminal, a user terminal or a wireless device.
  • the term “network device” refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate.
  • a network device include, but not limited to, a satellite, a unmanned aerial systems (UAS) platform, a Node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , a next generation NodeB (gNB) , a transmission reception point (TRP) , a remote radio unit (RRU) , a radio head (RH) , a remote radio head (RRH) , an IAB node, a low power node such as a femto node, a pico node, a reconfigurable intelligent surface (RIS) , and the like.
  • UAS unmanned aerial systems
  • NodeB Node B
  • eNodeB or eNB evolved NodeB
  • gNB next generation NodeB
  • TRP transmission reception point
  • RRU remote radio unit
  • RH
  • the terminal device may be connected with a first network device and a second network device.
  • One of the first network device and the second network device may be a master node and the other one may be a secondary node.
  • the first network device and the second network device may use different radio access technologies (RATs) .
  • the first network device may be a first RAT device and the second network device may be a second RAT device.
  • the first RAT device is eNB and the second RAT device is gNB.
  • Information related with different RATs may be transmitted to the terminal device from at least one of the first network device and the second network device.
  • first information may be transmitted to the terminal device from the first network device and second information may be transmitted to the terminal device from the second network device directly or via the first network device.
  • information related with configuration for the terminal device configured by the second network device may be transmitted from the second network device via the first network device.
  • Information related with reconfiguration for the terminal device configured by the second network device may be transmitted to the terminal device from the second network device directly or via the first network device.
  • Communications discussed herein may conform to any suitable standards including, but not limited to, New Radio Access (NR) , Long Term Evolution (LTE) , LTE-Evolution, LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) , cdma2000, and Global System for Mobile Communications (GSM) and the like.
  • NR New Radio Access
  • LTE Long Term Evolution
  • LTE-A LTE-Evolution
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.85G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) , and the sixth (6G) communication protocols.
  • the techniques described herein may be used for the wireless networks and radio technologies mentioned above as well as other wireless networks and radio technologies.
  • the embodiments of the present disclosure may be performed according to any generation communication protocols either currently known or to be developed in the future.
  • Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, 5.5G, 5G-Advanced networks, or the sixth generation (6G) networks.
  • the terminal device or the network device may have Artificial intelligence (AI) or machine learning capability. It generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
  • AI Artificial intelligence
  • machine learning capability it generally includes a model which has been trained from numerous collected data for a specific function, and can be used to predict some information.
  • the terminal device or the network device may work on several frequency ranges, e.g. FR1 (410 MHz –7125 MHz) , FR2 (24.25GHz to 71GHz) , frequency band larger than 100GHz as well as Tera Hertz (THz) . It can further work on licensed/unlicensed/shared spectrum.
  • the terminal device may have more than one connection with the network device under Multi-Radio Dual Connectivity (MR-DC) application scenario.
  • MR-DC Multi-Radio Dual Connectivity
  • the terminal device or the network device can work on full duplex, flexible duplex and cross division duplex modes.
  • test equipment e.g., signal generator, signal analyzer, spectrum analyzer, network analyzer, test terminal device, test network device, or channel emulator.
  • the embodiments of the present disclosure may be performed according to any generation communication protocols either currently known or to be developed in the future.
  • Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols, 5.5G, 5G-Advanced networks, or the sixth generation (6G) networks.
  • circuitry used herein may refer to hardware circuits and/or combinations of hardware circuits and software.
  • the circuitry may be a combination of analog and/or digital hardware circuits with software/firmware.
  • the circuitry may be any portions of hardware processors with software including digital signal processor (s) , software, and memory (ies) that work together to cause an apparatus, such as a terminal device or a network device, to perform various functions.
  • the circuitry may be hardware circuits and or processors, such as a microprocessor or a portion of a microprocessor, that requires software/firmware for operation, but the software may not be present when it is not needed for operation.
  • the term circuitry also covers an implementation of merely a hardware circuit or processor (s) or a portion of a hardware circuit or processor (s) and its (or their) accompanying software and/or firmware.
  • values, procedures, or apparatus are referred to as “best, ” “lowest, ” “highest, ” “minimum, ” “maximum, ” or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
  • ⁇ Jitter of packet arrival time for a downlink (DL) or uplink (UL) video stream, there is a significant jitter effect for the data packet arrival time.
  • the packet can arrive to the gNB or UE at any time within a specific range, e.g., [-4ms, 4ms] , around a theoretically average arrival time.
  • ⁇ Delay budget transmission of the video and pose/control packets with low latency is very critical for XR service to provide good user experience; therefore a very stringent requirement of delay budget is needed, e.g., 10ms, 15ms, etc.
  • a video frame usually has a large size, e.g., around 1M bits per frame after compression for a video stream.
  • the data packet size is varying over time, it is difficult to predict the packet size before it arrives.
  • CG PUSCH is beneficial for meeting the stringent delay budget since no SR and BSR reporting is needed.
  • the large and variable packet size should be considered in the enhancement of CG PUSCH.
  • configured grant Type 1 where an uplink grant is provided by radio resource control (RRC) and stored as configured uplink grant
  • RRC radio resource control
  • configured grant Type 2 where an uplink grant is provided by physical downlink control channel (PDCCH) , and stored or cleared as configured uplink grant based on layer 1 (L1) signalling indicating configured uplink grant activation or deactivation.
  • RRC radio resource control
  • PDCCH physical downlink control channel
  • Type 1 and Type 2 are configured by RRC for a Serving Cell per bandwidth part (BWP) . Multiple configurations can be active simultaneously in the same BWP. For Type 2, activation and deactivation are independent among the Serving Cells. For the same BWP, the medium access control (MAC) entity can be configured with both Type 1 and Type 2.
  • BWP Serving Cell per bandwidth part
  • timeReferenceSFN refers to the system frame number (SFN) used for determination of the offset of a resource in time domain and UE uses the closest SFN with the indicated number preceding the reception of the configured grant configuration.
  • SFNstart time, slotstart time, and symbolstart time are the SFN, slot, and symbol, respectively, of the first transmission opportunity of PUSCH where the configured uplink grant was (re-) initialized.
  • CG PUSCH is beneficial for XR services.
  • CG information from a network device may indicate multiple configured CG occasions in a CG period. Since the packet size of an uplink transmission is varied, some of the multiple configured CG occasions may be not used, in this case, it is to be studied how to improve the resource utilization.
  • a terminal device may receive first CG information indicating multiple configured CG occasions from a network device.
  • the terminal device may further transmit a first UCI to indicate at least one used CG occasion and/or at least one unused CG occasion in a first CG period.
  • the terminal device may further transmit a second UCI associated with the first CG period or the first CG information based on a DCI from the network device.
  • a DCI indicating the terminal device to transmit the second UCI may be transmitted, and accordingly the second UCI may be transmitted to the network device.
  • the network device may be aware of the at least one used CG occasion and/or at least one unused CG occasion, and accordingly it can avoid scheduling a retransmission of an unused CG occasion. Therefore, the efficiency of a communication between the terminal device and the network device may be improved.
  • FIG. 1 illustrates an example communication system 100 in which some embodiments of the present disclosure can be implemented.
  • the communication network 100 includes a network device 110 and a terminal device 120.
  • the network device 110 can provide services to the terminal device 120.
  • a link from the network device 110 to the terminal device 120 is referred to as a downlink (DL)
  • a link from the terminal device 120 to the network device 110 is referred to as an uplink (UL)
  • the network device 110 is a transmitting (TX) device (or a transmitter)
  • the terminal device 120 is a receiving (RX) device (or a receiver)
  • the terminal device 120 is a transmitting TX device (or a transmitter) and the network device 110 is a RX device (or a receiver) .
  • the network device 110 and the terminal device 120 may communicate with direct links/channels.
  • DL may comprise one or more logical channels, including but not limited to a Physical Downlink Control Channel (PDCCH) and a Physical Downlink Shared Channel (PDSCH) .
  • UL may comprise one or more logical channels, including but not limited to a Physical Uplink Control Channel (PUCCH) and a Physical Uplink Shared Channel (PUSCH) .
  • the term “channel” may refer to a carrier or a part of a carrier consisting of a contiguous set of resource blocks (RBs) on which a channel access procedure is performed in shared spectrum.
  • Communications in the system 100, between the network device 110 and the terminal device 120 for example, may be implemented according to any proper communication protocol (s) , comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) and the fifth generation (5G) and on the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • s any proper communication protocol
  • s comprising, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) and the fifth generation (5G) and on the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and/or any other protocols currently known or to be developed in the future.
  • IEEE Institute for Electrical and Electronics Engineers
  • the communication may utilize any proper wireless communication technology, comprising but not limited to: Code Divided Multiple Address (CDMA) , Frequency Divided Multiple Address (FDMA) , Time Divided Multiple Address (TDMA) , Frequency Divided Duplexer (FDD) , Time Divided Duplexer (TDD) , Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Divided Multiple Access (OFDMA) and/or any other technologies currently known or to be developed in the future.
  • CDMA Code Divided Multiple Address
  • FDMA Frequency Divided Multiple Address
  • TDMA Time Divided Multiple Address
  • FDD Frequency Divided Duplexer
  • TDD Time Divided Duplexer
  • MIMO Multiple-Input Multiple-Output
  • OFDMA Orthogonal Frequency Divided Multiple Access
  • Embodiments of the present disclosure can be applied to any suitable scenarios.
  • embodiments of the present disclosure can be implemented at reduced capability NR devices.
  • embodiments of the present disclosure can be implemented in one of the followings: NR multiple-input and multiple-output (MIMO) , NR sidelink enhancements, NR systems with frequency above 52.6GHz, an extending NR operation up to 71GHz, narrow band-Internet of Thing (NB-IOT) /enhanced Machine Type Communication (eMTC) over non-terrestrial networks (NTN) , NTN, UE power saving enhancements, NR coverage enhancement, NB-IoT and LTE-MTC, Integrated Access and Backhaul (IAB) , NR Multicast and Broadcast Services, or enhancements on Multi-Radio Dual-Connectivity.
  • MIMO multiple-input and multiple-output
  • NR sidelink enhancements NR systems with frequency above 52.6GHz, an extending NR operation up to 71GHz
  • NB-IOT narrow band-Internet of
  • the system 100 may include any suitable numbers of devices adapted for implementing embodiments of the present disclosure.
  • FIG. 2 illustrates a signalling chart illustrating communication process 200 in accordance with some example embodiments of the present disclosure. Only for the purpose of discussion, the process 200 will be described with reference to FIG. 1.
  • the process 200 may involve the network device 110 and the terminal device 120.
  • the network device 110 transmits 210 first CG information 212 to the terminal device 120.
  • the first CG information 212 may indicate a first number of configured CG occasions in each CG period.
  • the first number may be represented as Ncg1, which may be an integer greater than 0.
  • Ncg1 may be any integer and the present disclosure does not limit this aspect.
  • the first CG information 212 may indicate that there are Ncg1 configured CG occasions per CG period.
  • the first CG information 212 may indicate a type 1 CG.
  • the first CG information 212 may include a CG configuration, for example, the first CG information 212 may be transmitted via an RRC message/signalling.
  • the first CG information 212 may indicate a type 2 CG.
  • the first CG information 212 may be transmitted via an RRC message/signalling or may be transmitted via downlink control information (DCI) .
  • DCI downlink control information
  • the DCI may be used to activate the first number of configured CG occasions in a CG period.
  • a configured CG occasion may refer to a transmission occasion for a CG PUSCH.
  • a configured CG occasion may occupy multiple time units, where a time unit may be a symbol, a slot, a sub-frame, a frame, etc.
  • the network device 110 may indicate to the terminal device 120 that a CG period comprises Ncg1 configured CG occasions according to the first CG information 212.
  • the terminal device 120 receives 214 the first CG information 212.
  • the terminal device 120 may determine Ncg1 configured CG occasions per CG period based on the first CG information 212.
  • the terminal device 120 may determine at least one used CG occasion and/or at least one unused CG occasion from the first number of configured CG occasions in a first CG occasion. In some example embodiments, the terminal device 120 may determine a number of required CG occasions as the at least one used CG occasion after the arrival of an uplink data burst. In some example embodiments, the terminal device 120 may determine the at least one used CG occasion based on the size of the uplink data burst and resource allocation information, for example, the resource allocation information may include an amount of allocated resource elements (REs) for each configured CG occasion, modulation and coding scheme (MCS) for each configured CG occasion, etc.
  • the resource allocation information may include an amount of allocated resource elements (REs) for each configured CG occasion, modulation and coding scheme (MCS) for each configured CG occasion, etc.
  • REs resource elements
  • MCS modulation and coding scheme
  • the at least one used CG occasion may include more than one used CG occasion, and the more than one used CG occasion may be continuous within the Ncg1 configured CG occasions. In some examples, the more than one used CG occasion may be started from the first one among the Ncg1 configured CG occasions. However, it is to be appreciated that in some other cases, the more than one used CG occasion may be not continuous, or the more than one used CG occasion may be started from any one of the Ncg1 configured CG occasions, the present disclosure does not limit this aspect.
  • the terminal device 120 may further determine at least one hybrid automatic repeat request (HARQ) process number of the at least one used CG occasion, and/or determine at least one HARQ process number of the at least one unused CG occasion.
  • HARQ hybrid automatic repeat request
  • the terminal device 120 transmits 220 a first UCI 222 for a first CG period associated with the first CG information to the network device 110, where the first UCI 222 indicates at least one used CG occasion and/or at least one unused CG occasion in the first CG period.
  • the first UCI 222 may be associated with a used CG occasion in the first CG period, for example, the first UCI 222 may be transmitted on a PUCCH associated with a used CG occasion in the first CG period; for another example, the first UCI 222 may be transmitted in the used CG occasion in the first CG period, that is, the first UCI 222 may be a CG-UCI.
  • the first UCI 222 may indicate one or more of: a number of the at least one used CG occasion in the first CG period, a number of the at least one unused CG occasion in the first CG period, an index of the last used CG occasion among the at least one used CG occasion in the first CG period, or an index of the first unused CG occasion among the at least one unused CG occasion in the first CG period.
  • the network device 110 may monitor the first UCI and determine whether the first UCI can be successfully detected. As shown in FIG. 2, it is assumed that the network device 110 determines 230 that a reception of the first UCI for the first CG period associated with the first CG information is failed.
  • the network device 110 transmits 240 a DCI 242 to the terminal device 120.
  • the DCI 242 may indicate the terminal device 120 to transmit a second UCI associated with the first CG period or the first CG information.
  • the DCI 242 may be in format 0-1 or format 0-2, the present disclosure does not limit this aspect.
  • the DCI 242 may include a UL grant scheduling a transmission associated with the first CG period or the first CG information.
  • the first UCI 222 may be transmitted with an uplink shared channel (UL-SCH) by the terminal device 120. If the UL-SCH is not successfully received by the network device 110, a UL grant for scheduling a retransmission of the UL-SCH may be transmitted.
  • UL-SCH uplink shared channel
  • the UL grant may be addressed to a configured scheduling -radio network temporary identifier (CS-RNTI) and a new data indicator (NDI) in the UL grant may equal to a preset value.
  • CS-RNTI configured scheduling -radio network temporary identifier
  • NDI new data indicator
  • the UL grant may be addressed to a cell -radio network temporary identifier (C-RNTI) and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • C-RNTI cell -radio network temporary identifier
  • the DCI 242 may include a UCI request field.
  • the UCI request field may include information indicating that the DCI 242 is requesting a UCI.
  • the UCI request field may include at least one bit, the at least one bit may equal to a first predefined value, such as all zeros or all ones.
  • the DCI 242 may include a first HARQ process associated with the second UCI.
  • the DCI 242 may include a HARQ process number field carrying the first HARQ process number (HPN) .
  • the DCI 242 may include a CG period indication to indicate the first CG period. In some example embodiments, the DCI 242 may include a CG information indication to indicate the first CG information.
  • the DCI 242 may not be transmitted. In some other embodiments, if the first UCI 222 is successfully received by the network device 110, the DCI 242 may still be transmitted but does not indicate to transmit the second UCI.
  • the terminal device 120 receives 244 the DCI 242. As shown in FIG. 2, the terminal device 120 transmits 250 the second UCI 252 based on the DCI 242.
  • the second UCI 252 may be a retransmission of the first UCI 222, for example, the first UCI 222 is an initial transmission of a UCI and the second UCI 252 is a retransmission of the UCI.
  • at least a part of information in the first UCI 222 is comprised in the second UCI 252, for example, the second UCI 222 may include a same indication of the at least one used CG occasion and/or at least one unused CG occasion in the first CG period as the first UCI 222.
  • the terminal device 120 may determine whether at least one of the conditions are met: (1) a UCI request field in the DCI 242 carries at least one bit equaling to a first predefined value; (2) the DCI 242 comprises the UL grant, and the UL grant is addressed to a CS-RNTI and an NDI in the UL grant is equal to a preset value (such as 1) ; or (3) the DCI 242 comprises the UL grant, and the UL grant is addressed to a C-RNTI and the UL grant indicates a HARQ process number which is configured for a configured uplink grant. In some examples, if at least one of the conditions is met, the terminal device 120 may determine that the DCI 242 indicates to transmit the second UCI. For example, the second UCI may be a retransmission of the first UCI, in other words, the DCI 242 may indicate that a retransmission of the first UCI is requested by the network device 110.
  • the terminal device 120 may determine the first HARQ process number based on the DCI 242, and the terminal device 120 may further transmit the second UCI 252 based on the first HARQ process number. In some examples, the terminal device 120 may determine (or identify) the first HARQ process number from the HARQ process number field in the DCI 242.
  • the network device 110 since the first UCI 222 is not successfully received by the network device 110, the network device 110 does not know how many there are the used/unused CG occasions or which configured CG occasion is the used/unused CG occasion.
  • the first HARQ process indicated by the first HARQ process number may be determined by the network device 110, and may be any of HARQ processes.
  • the first HARQ process number may indicate a first HARQ process which is associated with a used CG occasion.
  • the terminal device 120 may multiplex the second UCI with a retransmission data in the used CG occasion. For example, if an initial transmission of the first HARQ process was transmitted in a used CG occasion, the second UCI 252 may be transmitted together with a retransmission associated with the first HARQ process.
  • the terminal device 120 may multiplex the second UCI 252 with the transmission which is associated with the first HARQ process number. For example, if there is a medium access control (MAC) protocol data unit (PDU) stored in a HARQ buffer of the first HARQ process indicated by the first HARQ process number, the terminal device 120 may multiplex the second UCI 252 with the MAC PDU. In some example embodiments, the terminal device 120 may further transmit the second UCI 252 with the MAC PDU based on the UL grant.
  • MAC medium access control
  • PDU protocol data unit
  • the first HARQ process number may indicate a first HARQ process which is associated with an unused CG occasion.
  • the first HARQ process number indicated by the UL grant is associated with an unused CG occasion, in other words, there is no actual transmission with the first HARQ process number in the first CG period.
  • the terminal device 120 may transmit the second UCI 252 based on the UL grant.
  • the second UCI 252 may include a presence indication which is used for notifying the network device 110 that there is no UL-SCH transmitted together with the second UCI 252.
  • the terminal device 120 may determine a second HARQ process, and transmit the second UCI 252 with a further MAC PDU stored in a second HARQ buffer of the second HARQ process. For example, the terminal device 120 may multiplex the second UCI 252 with the further MAC PDU.
  • the second UCI 252 may include an indication of a second HARQ process number of the second HARQ process.
  • the second HARQ process is different from the first HARQ process.
  • the second HARQ process is associated with a used CG occasion in a first CG period which the unused CG occasion is associated with.
  • a CG period associated with the unused CG occasion may be determined, and one or more used CG occasions associated with the CG period may be further determined.
  • the terminal device 120 may determine that the second HARQ process is associated with a used CG occasion among the one or more used CG occasions.
  • one or more HARQ processes associated with the first HARQ process number may be determined.
  • both the first HARQ process and the one or more HARQ processes are associated with the first CG period or the first CG information 212.
  • the terminal device 120 may determine the second HARQ process from the one or more HARQ processes, for example, a HARQ process with a highest priority or with a least remaining delay budget among the one or more HARQ processes may be determined as the second HARQ process.
  • the terminal device 120 may transmit the second UCI 252 in a PUCCH after a time offset.
  • the time offset may be predefined or preconfigured by the network device 110.
  • the time offset may be indicated by the network device 110, for example, the network device 110 may transmit another DCI indicating the time offset to the terminal device 120, and the terminal device 120 may determine the time offset based on another DCI.
  • the network device 110 receives 254 the second UCI 252.
  • the second UCI 252 may be successfully received by the network device 110, and thus the network device 110 can know the at least one used CG occasion and/or the at least one unused CG occasion.
  • the network device 110 may determine that a reception of the second UCI 252 is failed, and a further DCI similar with the DCI 242 may be transmitted.
  • the implementation is the like and the present disclosure will not repeat herein.
  • the network device may not know how many and which CG occasion may be used for further transmission. Additionally, with the UCI retransmission mechanism proposed in the present disclosure, the network device may know the number of used and/or unused CG occasion (s) in the first CG period, therefore a scheduling of retransmission of an unused CG occasion may be avoided.
  • the DCI 242 indicates to transmit the second UCI, however, in some other example embodiments, the second UCI may be not needed.
  • the terminal device 120 receives a DCI from the network device 110, but the DCI does not indicate to transmit the second UCI, then the terminal device 120 may assume that the network device 110 has received the first UCI 222 successfully and does not transmit the second UCI.
  • the terminal device 120 may assume that the network device 110 has received the first UCI 222 successfully and does not transmit the second UCI.
  • the terminal device 120 may flush a HARQ buffer associated with the first CG period if the terminal device 120 assumed that the network device 110 has received the first UCI 222 and the transmission associated with the HARQ buffer successfully.
  • the terminal device 120 may further transmit 225 a third UCI 226 to the network device 110, where the third UCI 226 may indicate at least one used CG occasion and/or at least one unused CG occasion in a third CG period.
  • the network device 110 may receive the third UCI 226 successfully or unsuccessfully, for example, as shown in FIG. 2, the network device 110 receives 227 the third UCI 226.
  • the DCI 242 may include a CG period indication, and the CG period indication may be used to indicate an indicated CG period associated with the second UCI.
  • the indicated CG period is the first CG period associated with the first CG information.
  • the CG period indication may include multiple bits, such as K bits, where K is an integer.
  • the K bits may be used to indicate multiple CG periods, such as M1 CG periods, where M1 is an integer and M1 is not larger than 2 to the power of Kth, i.e., M1 ⁇ 2 K .
  • the M1 CG periods may be before the reception of the DCI 242, for example, the M1 CG periods are the most recent M1 CG periods before the reception of the DCI 242. In some other embodiments, one of the M1 CG periods may be the CG period in which the DCI 242 is received, and the remaining M1-1 CG periods are those before the reception of the DCI 242.
  • the terminal device 120 may determine the indicated CG period based on a value of the K bits in the DCI 242.
  • the K bits may equal to a second predefined value, which indicates that the indicated CG period is a most recent CG period.
  • the K bits may equal to another value different from the second predefined value, and the indicated CG period is different from the most recent CG period, for example, the difference between the value and the second predefined value may equal to the number of CG periods of the interval between the indicated CG period and the most recent CG period.
  • the second predefined value may be preconfigured by the network device 110, or may be indicated by the network device 110.
  • the second predefined value may be 0 or M1-1.
  • the K bits equaling to 1 or M1-2 may be used to indicate that the indicated CG period is the second most recent CG period.
  • the K bits equaling to 0 are used to indicate that indicated CG period is the most recent CG period, such as CG period n; and the K bits equaling to n1 are used to indicate that indicated CG period is CG period n-n1.
  • the most CG period may be the CG period in which the DCI 242 is received.
  • the most CG period may be a latest CG period before a reception time of the DCI 242.
  • the most CG period may be a latest CG period with at least one CG occasion (or at least one UCI) which has been used for transmission before a reception time of the DCI 242.
  • the most CG period may be a latest CG period before a time equaling to the reception time plus an offset time.
  • the most CG period may be a latest CG period with at least one CG occasion (or at least one UCI) which has been used for transmission before a time equaling to the reception time plus an offset time.
  • the terminal device 120 may determine the indicated CG period based on a value of the K bits in the DCI 242 and an index of the CG period in which the DCI 242 is received. In some examples, if the value of the K bits is p and the index of the CG period in which the DCI 242 is received is s, then the indicated CG period may be a CG period s-p. For example, the index of the CG period in which the DCI 242 is received may be determined based on the slot in which the DCI 242 is transmitted, if the slot is within CG period s, then the index of the CG period in which the DCI 242 is received is s.
  • the terminal device 120 may determine an index of the indicated CG period based on a value of the K bits in the DCI 242.
  • the K bits may be used to indicate more than one CG period, and a total number of the more than one CG period may be represented as M1.
  • the value may be equal to (N mod M1) , where N is the index of the indicated CG period.
  • N may be the same as that in equation 1 or equation 2 described above, for a determination of Nth CG occasion or Nth uplink grant.
  • the terminal device 120 may determine an index of a time unit which is associated with the indicated CG period based on a value of K bits, and accordingly the indicated CG period may be determined.
  • the K bits may be used to indicate more than one CG period, and a total number of the more than one CG period may be represented as M1.
  • the value may be equal to (M mod M1) , where M is associated with an index of a time unit, and also associated with a CG periodicity.
  • a time unit may be any of: a symbol, a slot, a subframe, or a system frame.
  • M floor (CURRENT_symbol/periodicity) , where CURRENT_symbol refers to an index of the first symbol of the first CG occasion in the indicated CG period.
  • the indicated CG period may be implicitly indicated by at least one field in the DCI.
  • at least one field may be reused, such as a resource allocation field, a HARQ process number field, etc.
  • the at least one field equaling to a first specific value (such as all zeros) may be used to indicate that the indicated CG period is the first CG period (or the most recent CG period) .
  • the at least one field equaling to a second specific value (such as all ones) may be used to indicate that the indicated CG period is the third CG period (or the second most recent CG period) .
  • the DCI 242 may indicate a third HARQ process number associated with the indicated CG period.
  • the terminal device 120 may determine the third HARQ process number based on the DCI 242, and further determine the indicated CG period based on the third HARQ process number. As such, the terminal device 120 may determine that the indicated CG period whose associated UCI is requested based on the third HARQ process number indicated by the DCI 242.
  • the terminal device 120 may determine that the indicated CG period is the first CG period.
  • the UCI associated with the indicated CG period may refer to a UCI including an indication of the at least one used CG occasion and/or the at least one unused CG occasion in the indicated CG period.
  • the initial transmission may refer to the first transmission of a UL-SCH.
  • the indicated CG period may be determined by the terminal device 120, for example, the indicated CG period may be the first CG period, and the terminal device 120 may further transmit the second UCI 252 associated with the indicated CG period.
  • the terminal device 120 may determine a UCI which is associated with the indicated CG period, for example, the associated UCI if the first UCI 222.
  • the terminal device 120 may further transmit the second UCI 252 associated with the first UCI 222, for example, the second UCI 252 may be a retransmission of the first UCI 222.
  • the DCI 242 may explicitly or implicitly indicate an indicated CG period which is associated with the requested second UCI, and the terminal device 120 can distinguish which UCI is requested for retransmission, therefore a confusion may be avoid and the communication efficiency may be guaranteed.
  • the network device 110 may transmit a further DCI requesting a further UCI associated with the third CG period, for example the further UCI may be a retransmission of the third UCI 226.
  • the process is similar with that of the DCI 242 and the second UCI 252 and thus will not repeat herein.
  • the network device 110 may further transmit (not shown in FIG. 2) second CG information indicating a second number of configured CG occasions in each CG period.
  • the second number may be represented as Ncg2, which may be an integer greater than 0.
  • Ncg2 may be any integer and the present disclosure does not limit this aspect.
  • the second CG information may indicate that there are Ncg2 configured CG occasions per CG period, for example, Ncg2 is not equal to Ncg1.
  • the second CG information may indicate a type 1 CG.
  • the second CG information may include a CG configuration, for example, the second CG information may be transmitted via an RRC message/signalling. In some example embodiments, the second CG information may indicate a type 2 CG. In some examples, the second CG information may be transmitted via an RRC message/signalling or may be transmitted via a DCI. In some example, the DCI may be used to activate the second number of configured CG occasions in a CG period.
  • the first UCI 222 is associated with the first CG information.
  • the terminal device 120 may further transmit a fourth UCI for a fourth CG period associated with the second CG information.
  • the fourth UCI may indicate at least one used CG occasion and/or at least one unused CG occasion among the second number of configured CG occasions in the fourth CG period associated with the second CG information.
  • the network device 110 may receive the fourth UCI associated with the second CG information successfully or unsuccessfully.
  • the first CG information 212 may include a first CG configuration
  • the second CG information may include a second CG configuration.
  • different CG information may have different configurations of at least one of: a periodicity, a start offset, or a number of configured CG occasions.
  • the terminal device 120 may be configured with multiple CG configurations, and for each CG configuration, there may be an associated with UCI needs to be retransmitted, thus it is necessary to indicate which UCI is requested, for example which CG configuration is associated with.
  • the DCI 242 may include a CG information indication, in some examples, the CG information indication may be called as a CG configuration indication.
  • the CG information indication may be used to indicate indicated CG information associated with the requested second UCI.
  • the CG configuration indication may be used to indicate an indicated CG configuration associated with the requested second UCI.
  • the indicated CG information is the first CG information
  • the indicated CG configuration is the first CG configuration.
  • the CG information indication may include multiple bits, such as L bits, where L is an integer.
  • the L bits may be used to indicate multiple pieces of CG information or multiple CG configurations, such as M2 pieces of CG information or M2 CG configurations, where M2 is an integer and M2 is not larger than 2 to the power of Lth, i.e., M2 ⁇ 2 L .
  • the L bits may be used to indicate at most 2 L indexes of CG configurations.
  • the terminal device 120 may determine the indicated CG configuration based on a value of the L bits in the DCI 242. For example, a list of indexes of CG configurations may be configured by the network device 110, via an RRC messages for example. As such, the terminal device 120 may determine the indicated CG configuration based on the value of the L bits and the list.
  • the indicated CG information may be implicitly indicated by at least one field in the DCI.
  • at least one field may be reused, such as a resource allocation field, a HARQ process number field, etc.
  • the at least one field equaling to a first specific value (such as all zeros) may be used to indicate that the indicated CG information (or the indicated CG configuration) is the first CG information (or the first CG configuration) .
  • the at least one field equaling to a second specific value (such as all ones) may be used to indicate that the indicated CG information (or the indicated CG configuration) is the second CG information (or the second CG configuration) .
  • the DCI 242 may indicate a fourth HARQ process number associated with the indicated CG information (or the indicated CG configuration) .
  • the terminal device 120 may determine the fourth HARQ process number based on the DCI 242, and further determine the indicated CG information (or the indicated CG configuration) based on the fourth HARQ process number. As such, the terminal device 120 may determine that the indicated CG information (or the indicated CG configuration) whose associated UCI is requested based on the fourth HARQ process number indicated by the DCI 242.
  • a HARQ process number associated with CG information may mean that a UL-SCH of a HARQ process indicated by the HARQ process number is transmitted in a CG occasion of the CG information (or a CG configuration) .
  • a HARQ process number associated with CG information may mean that the HARQ process number is allocated for the CG information (or a CG configuration) .
  • the UCI associated with a CG information may refer to a UCI including an indication of the at least one used CG occasion and/or the at least one unused CG occasion in a CG period for the CG information (or the CG configuration) .
  • the indicated CG information may be determined by the terminal device 120, for example, the indicated CG information (or the indicated CG configuration) may be the first CG information (or the first CG configuration) , and the terminal device 120 may further transmit the second UCI 252 associated with the indicated CG information (or the indicated CG configuration) .
  • the second UCI 252 may be a retransmission of the first UCI 222 associated with the first CG information (or the first CG configuration) .
  • the DCI 242 may explicitly or implicitly indicate indicated CG information (or the indicated CG configuration) which is associated with the requested second UCI, and the terminal device 120 can distinguish which UCI is requested for retransmission, therefore a confusion may be avoid and the communication efficiency may be guaranteed.
  • FIG. 3A illustrates a schematic diagram 310 of a scenario when a mis-detection of a UCI is happened in accordance with some embodiments of the present disclosure.
  • the HARQ process numbers of the 4 configured CG occasions may be 0, 1, 2 and 3 respectively. It is assumed that the configured CG occasions with HARQ process numbers 0 and 1 are used CG occasions, and the configured CG occasions with HARQ process numbers 2 and 3 are unused CG occasions.
  • a UCI 314, such as a CG-UCI may be transmitted in the first used CG occasion in the CG period 312.
  • the network device 110 may assume a transmission of UL-SCH is failed, and a retransmission of a CG transmission 316 may be scheduled, for example, a retransmission of as unused CG occasion (such as the unused CG occasion with the HARQ process number 2 or 3) is scheduled, which may result in a high signalling overhead and a low utilization of the resources.
  • FIG. 3B illustrates a schematic diagram 320 of a DCI scheduling a retransmission in accordance with some embodiments of the present disclosure.
  • the HARQ process numbers of the 2 used CG occasions may be 0 and 1 respectively.
  • a UCI 324 such as a CG-UCI, may be transmitted in the first used CG occasion in the CG period 322.
  • the network device 110 may transmit a DCI 326 to indicate the terminal device 120 to retransmit the UCI, and thus a further UCI 328 may be transmitted based on the DCI 326.
  • the DCI 326 may include a UCI request field equaling to a first predefined value (all zeros or all ones) .
  • the UCI 328 may be a retransmission of the UCI 324.
  • FIG. 3C illustrates a schematic diagram 330 of a DCI including a HARQ process number in accordance with some embodiments of the present disclosure.
  • the HARQ process numbers of the 2 used CG occasions may be 0 and 1 respectively, and the HARQ process numbers of the 2 unused CG occasions may be 2 and 3 respectively.
  • a UCI 334 such as a CG-UCI, may be transmitted in the first used CG occasion in the CG period 332.
  • the network device 110 may transmit a DCI 336 to indicate the terminal device 120 to retransmit the UCI, and thus a further UCI 338 may be transmitted based on the DCI 336.
  • FIG. 3D illustrates another schematic diagram 340 of a DCI including a HARQ process number in accordance with some embodiments of the present disclosure.
  • the HARQ process numbers of the 2 used CG occasions may be 0 and 1 respectively, and the HARQ process numbers of the 2 unused CG occasions may be 2 and 3 respectively.
  • a UCI 344, such as a CG-UCI, may be transmitted in the first used CG occasion in the CG period 342.
  • the network device 110 may transmit a DCI 346 to indicate the terminal device 120 to retransmit the UCI, and thus a further UCI 348 may be transmitted based on the DCI 346.
  • the UCI 348 may be transmitted and the UCI 348 may include a presence indication indicating that there is no UL-SCH in the transmission.
  • FIG. 3E illustrates another schematic diagram 350 of a DCI including a HARQ process number in accordance with some embodiments of the present disclosure.
  • the HARQ process numbers of the 3 used CG occasions may be 0, 1, and 3 respectively, and the HARQ process number of the unused CG occasion may be 2.
  • a UCI 354, such as a CG-UCI may be transmitted in the first used CG occasion in the CG period 352.
  • the network device 110 may transmit a DCI 356 to indicate the terminal device 120 to retransmit the UCI, and thus a further UCI 358 may be transmitted based on the DCI 356.
  • FIG. 4A illustrates a schematic diagram 410 of two DCIs associated with two CG periods in accordance with some embodiments of the present disclosure.
  • there are 4 configured CG occasions in a single CG period such as the CG period 411 (CG period n) and the CG period 412 (CG period n+1) .
  • the HARQ process numbers of the 3 used CG occasions in the CG period 411 may be 0, 1, and 2 respectively, and the HARQ process number of the unused CG occasion in the CG period 411 may be 3.
  • the HARQ process numbers of the 2 used CG occasions in the CG period 412 may be 4 and 5 respectively, and the HARQ process numbers of the 2 unused CG occasions in the CG period 412 may be 6 and 7 respectively.
  • a UCI 413 such as a CG-UCI
  • Another UCI 414 such as another CG-UCI
  • the network device 110 may transmit a DCI 415 to indicate the terminal device 120 to retransmit the UCI 413 and another DCI 416 to indicate the terminal device 120 to retransmit the UCI 414.
  • a further UCI 417-1 may be transmitted with a retransmission of the UL-SCH 417, where an initial transmission of the UL-SCH 417 may be associated with a HARQ process number 0 in the CG period 411.
  • Another further UCI 418-1 may be transmitted with a retransmission of the UL-SCH 418, where an initial transmission of the UL-SCH 418 may be associated with a HARQ process number 4 in the CG period 412.
  • FIG. 4B illustrates a schematic diagram 420 of a DCI including a CG period indication in accordance with some embodiments of the present disclosure.
  • there are 4 configured CG occasions in a single CG period such as the CG period 421 (CG period n) and the CG period 422 (CG period n+1) .
  • the HARQ process numbers of the 3 used CG occasions in the CG period 421 may be 0, 1, and 2 respectively, and the HARQ process number of the unused CG occasion in the CG period 421 may be 3.
  • the HARQ process numbers of the 2 used CG occasions in the CG period 422 may be 4 and 5 respectively, and the HARQ process numbers of the 2 unused CG occasions in the CG period 422 may be 6 and 7 respectively.
  • a UCI 423 such as a CG-UCI, may be transmitted in the first used CG occasion in the CG period 421.
  • Another UCI 424 such as another CG-UCI, may be transmitted in the first used CG occasion in the CG period 422.
  • the network device 110 may transmit a DCI 425 to indicate the terminal device 120 to retransmit the UCI 423.
  • a further UCI 428-1 may be transmitted with a retransmission of the UL-SCH 428, an initial transmission of the UL-SCH 428 may be associated with a HARQ process number 0 in the CG period 421.
  • the DCI 426 may include a CG period indication which indicates the CG period 421.
  • the CG period indication may include an index of the CG period 421: n.
  • the UCI 428-1 may be a retransmission of the UCI 423.
  • FIG. 4C illustrates a schematic diagram 430 of a DCI including a HARQ process number associated with a CG period in accordance with some embodiments of the present disclosure.
  • there are 4 configured CG occasions in a single CG period such as the CG period 431 (CG period n) and the CG period 432 (CG period n+1) .
  • the HARQ process numbers of the 3 used CG occasions in the CG period 431 may be 0, 1, and 2 respectively, and the HARQ process number of the unused CG occasion in the CG period 431 may be 3.
  • the HARQ process numbers of the 2 used CG occasions in the CG period 432 may be 4 and 5 respectively, and the HARQ process numbers of the 2 unused CG occasions in the CG period 432 may be 6 and 7 respectively.
  • a UCI 433, such as a CG-UCI, may be transmitted in the first used CG occasion in the CG period 431.
  • Another UCI 434, such as another CG-UCI may be transmitted in the first used CG occasion in the CG period 432.
  • the network device 110 may transmit a DCI 435 to indicate the terminal device 120 to retransmit the UCI 433 and another DCI 436 to indicate the terminal device 120 to retransmit the UCI 434.
  • a further UCI 437-1 may be transmitted based on the DCI 435 and a further UCI 438-1 may be transmitted based on the DCI 436.
  • FIG. 5A illustrates a schematic diagram 510 of two DCIs associated with two CG configurations in accordance with some embodiments of the present disclosure.
  • the CG configuration 1 indicates that there are 7 configured CG occasion in a single CG period, such as the CG period 511 for CG configuration 1.
  • the CG configuration 2 indicates that there are 3 configured CG occasion in a single CG period, such as the CG period 512 for CG configuration 2. It is assumed that there are three used CG occasions in the CG period 511 for CG configuration 1, the HARQ process numbers of the 3 used CG occasions in the CG period 511 for CG configuration 1 may be 0, 1, and 2 respectively. It is assumed that there are two used CG occasions in the CG period 512 for CG configuration 2, the HARQ process numbers of the 2 used CG occasions in the CG period 512 for CG configuration 2 may be 4 and 5 respectively.
  • a UCI 513 such as a CG-UCI
  • a UCI 514 such as another CG-UCI
  • Another UCI 514 may be transmitted in the first used CG occasion in the CG period 512 for CG configuration 2.
  • the network device 110 may transmit a DCI 515 to indicate the terminal device 120 to retransmit the UCI 513 and another DCI 516 to indicate the terminal device 120 to retransmit the UCI 514.
  • a further UCI 517-1 may be transmitted with a retransmission of the UL-SCH 517, where an initial transmission of the UL-SCH 517 may be associated with the CG period 511 for CG configuration 1.
  • Another further UCI 518-1 may be transmitted with a retransmission of the UL-SCH 518, where an initial transmission of the UL-SCH 518 may be associated with the CG period 512 for CG configuration 2.
  • FIG. 5B illustrates a schematic diagram 520 of a DCI including a CG configuration indication in accordance with some embodiments of the present disclosure.
  • the CG configuration 1 indicates that there are 7 configured CG occasion in a single CG period, such as the CG period 521 for CG configuration 1.
  • the CG configuration 2 indicates that there are 3 configured CG occasion in a single CG period, such as the CG period 522 for CG configuration 2. It is assumed that there are three used CG occasions in the CG period 521 for CG configuration 1, the HARQ process numbers of the 3 used CG occasions in the CG period 521 for CG configuration 1 may be 0, 1, and 2 respectively. It is assumed that there are two used CG occasions in the CG period 522 for CG configuration 2, the HARQ process numbers of the 2 used CG occasions in the CG period 522 for CG configuration 2 may be 4 and 5 respectively.
  • a UCI 523 such as a CG-UCI
  • a UCI 524 such as another CG-UCI
  • Another UCI 524 may be transmitted in the first used CG occasion in the CG period 522 for CG configuration 2.
  • the network device 110 may transmit a DCI 525 to indicate the terminal device 120 to retransmit the UCI 523 and another DCI 526 to indicate the terminal device 120 to retransmit the UCI 524.
  • a further UCI 527-1 may be transmitted based on the DCI 525 and a further UCI 528-1 may be transmitted based on the DCI 526.
  • the DCI 525 may be a UL grant and include a CG configuration indication which indicates the CG configuration 1.
  • the DCI 526 may be a UL grant and include a CG configuration indication which indicates the CG configuration 2.
  • the UCI 527-1 may be a retransmission of the UCI 523, and the UCI 528-1 may be a retransmission of the UCI 524.
  • FIG. 5C illustrates a schematic diagram 530 of a DCI including a HARQ process number associated with a CG configuration in accordance with some embodiments of the present disclosure.
  • CG configuration 1 indicates that there are 7 configured CG occasion in a single CG period, such as the CG period 531 for CG configuration 1.
  • the CG configuration 2 indicates that there are 3 configured CG occasion in a single CG period, such as the CG period 532 for CG configuration 2.
  • the HARQ process numbers of the 3 used CG occasions in the CG period 531 for CG configuration 1 may be 0, 1, and 2 respectively. It is assumed that there are two used CG occasions in the CG period 532 for CG configuration 2, the HARQ process numbers of the 2 used CG occasions in the CG period 532 for CG configuration 2 may be 4 and 5 respectively.
  • a UCI 533 such as a CG-UCI, may be transmitted in the first used CG occasion in the CG period 531 for CG configuration 1.
  • Another UCI 534 such as another CG-UCI, may be transmitted in the first used CG occasion in the CG period 532 for CG configuration 2.
  • the network device 110 may transmit a DCI 535 to indicate the terminal device 120 to retransmit the UCI 533 and another DCI 536 to indicate the terminal device 120 to retransmit the UCI 534.
  • a further UCI 537-1 may be transmitted based on the DCI 535 and a further UCI 538-1 may be transmitted based on the DCI 536.
  • the UCI 537-1 may be a retransmission of the UCI 533, and the UCI 538-1 may be a retransmission of the UCI 534.
  • a UCI for a CG period of CG information indicating at least one used CG occasion and/or at least one unused CG occasion may be mis-detected by the network device, the network device may transmit a DCI to indicate the terminal device to transmit the UCI associated with a CG period or CG information, as such, the terminal device may retransmit the UCI to the network device, and the network device may be aware of how many and what configured CG occasions are unused. Accordingly, the unused CG occasions may be used for other transmissions, therefore, the efficiency of communication between the terminal device and the network device may be improved, and the resources may be used more effectively.
  • FIG. 6 illustrates a flowchart of an example method 600 implemented at a terminal device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 600 will be described from the perspective of the terminal device 120 with reference to FIG. 1.
  • the terminal device 120 receives, from the network device 110, first CG information indicating a first number of configured CG occasions in each CG period.
  • the terminal device 120 transmits, to the network device 110, a first UCI for a first CG period associated with the first CG information, the first UCI indicates at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period.
  • the terminal device 120 receives, from the network device 110, a DCI indicating to transmit a second UCI associated with the first CG period or the first CG information.
  • the terminal device 120 transmits, to the network device 110, the second UCI based on the DCI.
  • the DCI comprises at least one of: a UCI request field carrying at least one bit equaling to a first predefined value, or a UL grant scheduling a transmission associated with the first CG information.
  • the UL grant is addressed to a CS-RNTI and an NDI in the UL grant is equal to a preset value. In some example embodiments, the UL grant is addressed to a C-RNTI and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • the terminal device 120 determines a first HARQ process number based on the DCI; and transmits the second UCI based on the first HARQ process number.
  • the terminal device 120 if the first HARQ process number is associated with a used CG occasion, the terminal device 120 multiplexes the second UCI with a retransmission data in the used CG occasion.
  • the terminal device 120 if the first HARQ process number is associated with a transmission not associated with the first CG information, the terminal device 120 multiplexes the second UCI with the transmission based on the DCI.
  • the terminal device 120 if there is a MAC PDU stored in a HARQ buffer of a first HARQ process indicated by the first HARQ process number, the terminal device 120 multiplexes the second UCI with the MAC PDU.
  • the DCI comprises a UL grant, if the first HARQ process number is associated with an unused CG occasion or there is no MAC PDU stored in a HARQ buffer of a first HARQ process indicated by the first HARQ process number, and the terminal device 120 transmits the second UCI comprising a presence indication based on the UL grant, where the presence indication indicates that there is no UL-SCH transmitted with the second UCI.
  • the terminal device 120 determines a second HARQ process different from the first HARQ process indicated by the first HARQ process number; and multiplexes the second UCI with a further MAC PDU stored in a second HARQ buffer of the second HARQ process.
  • the second UCI further comprises an indication of the second HARQ process number.
  • the terminal device 120 determines the second HARQ process being associated with a used CG occasion in a second CG period which the unused CG occasion is associated with.
  • the terminal device 120 determines a plurality of HARQ processes associated with the first HARQ process number; and determines the second HARQ process as a HARQ process with a highest priority or with a least remaining delay budget among the plurality of HARQ processes.
  • the terminal device 120 transmits the second UCI in a PUCCH after a time offset. In some example embodiments, the terminal device 120 receives, from the network device 110, a further DCI indicating the time offset.
  • the second UCI is a retransmission of the first UCI, or at least a part of information comprised in the first UCI is comprised in the second UCI.
  • the terminal device 120 transmits, to the network device 110, a third UCI for a third CG period associated with the first CG information, the third UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the third CG period; and determines an indicated CG period associated with the second UCI based on the DCI.
  • the DCI comprises a CG period indication indicating the indicated CG period associated with the second UCI.
  • the CG period indication comprises a plurality of bits equaling to K, the plurality of bits are used to indicate a plurality of CG periods, a number of the plurality of CG periods is not larger than 2 to the power of Kth.
  • the terminal device 120 determines that the indicated CG period is a most recent CG period. In some example embodiments, if the plurality of bits equal to a value different from the second predefined value, the terminal device 120 determines that the indicated CG period is a CG period having an interval with the most recent CG period, where a number of CG periods of the interval equals to a difference between the value and the second predefined value.
  • the most recent CG period comprised one of: a latest CG period with at least one CG occasion which has been used for transmission before a reception time of the DCI; a latest CG period with at least one CG occasion which has been used for transmission before a time equaling to the reception time plus an offset time; or a CG period in which the DCI is received.
  • the terminal device 120 determines the indicated CG period based on an index of a CG period in which the DCI is received and a value of the plurality of bits.
  • the terminal device 120 determines an index of the indicated CG period based on a value of the plurality of bits.
  • the terminal device 120 determines an index of a time unit which is associated with the indicated CG period based on a value of the plurality of bits, where the time unit is at least one of: a symbol, a slot, a subframe, or a system frame.
  • the indicated CG period is implicated indicated by at least one field in the DCI.
  • the terminal device 120 determines a third HARQ process number based on the DCI; and determines the indicated CG period associated with the second UCI based on the third HARQ process number.
  • the terminal device 120 determines that the indicated CG period is the first CG period.
  • the terminal device 120 transmits the second UCI associated with the indicated CG period.
  • the terminal device 120 receives, from the network device 110, second CG information indication a second number of configured CG occasions in each CG period. In some example embodiments, the terminal device 120 transmits, to the network device 110, a fourth UCI for a fourth CG period associated with the second CG information, the fourth UCI indicates at least one used CG occasion and/or at least one unused CG occasion among the second number of configured CG occasions in the fourth CG period. In some example embodiments, the terminal device 120 determines indicated CG information associated with the second UCI based on the DCI.
  • the DCI comprises a CG information indication indicating the indicated CG information associated with the second UCI.
  • the CG information indication comprises a plurality of bits equaling to L, the plurality of bits are used to indicate a plurality of pieces of CG information, a number of the plurality of pieces of CG information is not larger than 2 to the power of Lth.
  • the CG information indication is implicitly indicated by at least one field in the DCI.
  • the terminal device 120 determines a fourth HARQ process number based on the DCI; and determines the indicated CG information associated with the second UCI based on the fourth HARQ process number.
  • the terminal device 120 determines that the indicated CG information is the first CG information.
  • the terminal device 120 transmits the second UCI associated with the indicated CG information.
  • FIG. 7 illustrates a flowchart of an example method 700 implemented at a network device in accordance with some embodiments of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of the network device 110 with reference to FIG. 1.
  • the network device 110 transmits, to a terminal device 120, first CG information indicating a first number of configured CG occasions in each CG period.
  • the network device 110 determines whether a reception of a first UCI for a first CG period associated with the first CG information is failed, the first UCI indicates at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period.
  • the network device 110 transmits, to the terminal device 120, a DCI indicating to transmit a second UCI associated with the first CG period or the first CG information.
  • the network device 110 receives, from the terminal device 120, the second UCI based on the DCI.
  • the DCI comprises at least one of: a UCI request field carrying at least one bit equaling to a first predefined value, or a UL grant scheduling a transmission associated with the first CG information.
  • the UL grant is addressed to a CS-RNTI and an NDI in the UL grant is equal to a preset value. In some example embodiments, the UL grant is addressed to a C-RNTI and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • the network device 110 receives the second UCI based on a first HARQ process number indicated by the DCI.
  • the network device 110 receives the second UCI multiplexed with a retransmission data in a used CG occasion associated with the first HARQ process number.
  • the network device 110 receives the second UCI multiplexed with the transmission based on the DCI.
  • the network device 110 receives the second UCI multiplexed with a MAC PDU stored in a first HARQ buffer of a first HARQ process indicated by the first HARQ process number.
  • the network device 110 receives the second UCI comprising a presence indication based on the UL grant, where the presence indication indicates that there is no UL-SCH transmitted with the second UCI.
  • the network device 110 receives the second UCI multiplexed with a further MAC PDU stored in a second HARQ buffer of a second HARQ process different from a first HARQ process indicated by the first HARQ process number.
  • the second UCI further comprises an indication of the second HARQ process number.
  • the first HARQ process number is associated with an unused CG occasion
  • the second HARQ process is associated with a used CG occasion in a second CG period which the unused CG occasion is associated with.
  • the second HARQ process has a highest priority or a least remaining delay budget among a plurality of HARQ processes associated with the first HARQ process number.
  • the network device 110 receives the second UCI in a PUCCH after a time offset. In some example embodiments, the network device 110 transmits, to the terminal device 120, a further DCI indicating the time offset.
  • the second UCI is a retransmission of the first UCI, or at least a part of information comprised in the first UCI is comprised in the second UCI.
  • the DCI indicates an indicated CG period associated with the second UCI, where the indicated CG period is the first CG period.
  • the DCI comprises a CG period indication indicating the indicated CG period associated with the second UCI.
  • the CG period indication comprises a plurality of bits equaling to K, the plurality of bits are used to indicate a plurality of CG periods, a number of the plurality of CG periods is not larger than 2 to the power of Kth.
  • the plurality of bits equaling to a second predefined value are used to indicate that the indicated CG period is a most recent CG period; and where the plurality of bits equaling to a value different from the second predefined value are used to indicate that the indicated CG period is a CG period having an interval with the most recent CG period, where a number of CG periods of the interval equals to a difference between the value and the second predefined value.
  • the most recent CG period comprised one of: a latest CG period with at least one CG occasion which has been used for transmission before a reception time of the DCI; a latest CG period with at least one CG occasion which has been used for transmission before a time equaling to the reception time plus an offset time; or a CG period in which the DCI is received by the terminal device.
  • the indicated CG period is indicated based on an index of a CG period in which the DCI is received by the terminal device and a value of the plurality of bits.
  • an index of the indicated CG period is indicated based on a value of the plurality of bits.
  • the indicated CG period is associated with an index of a time unit, where the index of the time unit is indicated based on a value of the plurality of bits, and where the time unit is at least one of: a symbol, a slot, a subframe, or a system frame.
  • the indicated CG period is implicated indicated by at least one field in the DCI.
  • the network device 110 determines the indicated CG period associated with a third HARQ process number indicated by the DCI.
  • the network device 110 determines that the indicated CG period associated with the second UCI is the first CG period.
  • the network device 110 receives the second UCI associated with the indicated CG period.
  • the network device 110 transmits, to the terminal device 120, second CG information indication a second number of configured CG occasions in each CG period, and where the DCI indicates indicated CG information associated with the second UCI, where the indicated CG information is the first CG information.
  • the DCI comprises a CG information indication indicating the indicated CG information associated with the second UCI.
  • the CG information indication comprises a plurality of bits equaling to L, the plurality of bits are used to indicate a plurality of pieces of CG information, a number of the plurality of pieces of CG information is not larger than 2 to the power of Lth.
  • the CG information indication is implicitly indicated by at least one field in the DCI.
  • the network device 110 determines the indicated CG information associated with a fourth HARQ process number indicated by the DCI.
  • the network device 110 determines that the indicated CG information is the first CG information.
  • the network device 110 receives the second UCI associated with the indicated CG information.
  • FIGS. 1-7 Details of some embodiments according to the present disclosure have been described with reference to FIGS. 1-7. Now an example implementation of the terminal device and the network device will be discussed below.
  • a terminal device comprises circuitry configured to: receive, from a network device, first CG information indicating a first number of configured CG occasions in each CG period; transmit, to the network device, a first UCI for a first CG period associated with the first CG information, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; receive, from the network device, a DCI indicating to transmit a second UCI associated with the first CG period or the first CG information; and transmit, to the network device, the second UCI based on the DCI.
  • the DCI comprises at least one of: a UCI request field carrying at least one bit equaling to a first predefined value, or a UL grant scheduling a transmission associated with the first CG information.
  • the UL grant is addressed to a CS-RNTI and an NDI in the UL grant is equal to a preset value. In some example embodiments, the UL grant is addressed to a C-RNTI and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • the terminal device comprises circuitry configured to: determine a first HARQ process number based on the DCI; and transmit the second UCI based on the first HARQ process number.
  • the terminal device comprises circuitry configured to: if the first HARQ process number is associated with a used CG occasion, multiplex the second UCI with a retransmission data in the used CG occasion.
  • the terminal device comprises circuitry configured to: if the first HARQ process number is associated with a transmission not associated with the first CG information, multiplex the second UCI with the transmission based on the DCI.
  • the terminal device comprises circuitry configured to: if there is a MAC PDU stored in a HARQ buffer of a first HARQ process indicated by the first HARQ process number, multiplex the second UCI with the MAC PDU.
  • the DCI comprises a UL grant
  • the terminal device comprises circuitry configured to: if the first HARQ process number is associated with an unused CG occasion or there is no MAC PDU stored in a HARQ buffer of a first HARQ process indicated by the first HARQ process number, transmit the second UCI comprising a presence indication based on the UL grant, where the presence indication indicates that there is no UL-SCH transmitted with the second UCI.
  • the terminal device comprises circuitry configured to: if the first HARQ process number is associated with an unused CG occasion or there is no MAC PDU stored in a first HARQ buffer of a first HARQ process indicated by the first HARQ process number, determine a second HARQ process different from the first HARQ process indicated by the first HARQ process number; and multiplex the second UCI with a further MAC PDU stored in a second HARQ buffer of the second HARQ process.
  • the second UCI further comprises an indication of the second HARQ process number.
  • the terminal device comprises circuitry configured to: determine the second HARQ process being associated with a used CG occasion in a second CG period which the unused CG occasion is associated with.
  • the terminal device comprises circuitry configured to: determine a plurality of HARQ processes associated with the first HARQ process number; and determine the second HARQ process as a HARQ process with a highest priority or with a least remaining delay budget among the plurality of HARQ processes.
  • the terminal device comprises circuitry configured to: transmit the second UCI in a physical uplink control channel (PUCCH) after a time offset.
  • PUCCH physical uplink control channel
  • the terminal device comprises circuitry configured to: receive, from the network device, a further DCI indicating the time offset.
  • the second UCI is a retransmission of the first UCI, or at least a part of information comprised in the first UCI is comprised in the second UCI.
  • the terminal device comprises circuitry configured to: transmit, to the network device, a third UCI for a third CG period associated with the first CG information, the third UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the third CG period; and determine an indicated CG period associated with the second UCI based on the DCI.
  • the DCI comprises a CG period indication indicating the indicated CG period associated with the second UCI.
  • the CG period indication comprises a plurality of bits equaling to K, the plurality of bits are used to indicate a plurality of CG periods, a number of the plurality of CG periods is not larger than 2 to the power of Kth.
  • the terminal device comprises circuitry configured to: if the plurality of bits equal to a second predefined value, determine that the indicated CG period is a most recent CG period; if the plurality of bits equal to a value different from the second predefined value, determine that the indicated CG period is a CG period having an interval with the most recent CG period, wherein a number of CG periods of the interval equals to a difference between the value and the second predefined value.
  • the most recent CG period comprised one of: a latest CG period with at least one CG occasion which has been used for transmission before a reception time of the DCI; a latest CG period with at least one CG occasion which has been used for transmission before a time equaling to the reception time plus an offset time; or a CG period in which the DCI is received.
  • the terminal device comprises circuitry configured to: determine the indicated CG period based on an index of a CG period in which the DCI is received and a value of the plurality of bits.
  • the terminal device comprises circuitry configured to: determine an index of the indicated CG period based on a value of the plurality of bits.
  • the terminal device comprises circuitry configured to: determine an index of a time unit which is associated with the indicated CG period based on a value of the plurality of bits, where the time unit is at least one of: a symbol, a slot, a subframe, or a system frame.
  • the indicated CG period is implicated indicated by at least one field in the DCI.
  • the terminal device comprises circuitry configured to: determine a third HARQ process number based on the DCI; and determine the indicated CG period associated with the second UCI based on the third HARQ process number.
  • the terminal device comprises circuitry configured to: if an initial transmission of a third HARQ process indicated by the third HARQ process number is in the first CG period, determine that the indicated CG period is the first CG period.
  • the terminal device comprises circuitry configured to: transmit the second UCI associated with the indicated CG period.
  • the terminal device comprises circuitry configured to: receive, from the network device, second CG information indication a second number of configured CG occasions in each CG period; transmit, to the network device, a fourth UCI for a fourth CG period associated with the second CG information, the fourth UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the second number of configured CG occasions in the fourth CG period; and determine indicated CG information associated with the second UCI based on the DCI.
  • the DCI comprises a CG information indication indicating the indicated CG information associated with the second UCI.
  • the CG information indication comprises a plurality of bits equaling to L, the plurality of bits are used to indicate a plurality of pieces of CG information, a number of the plurality of pieces of CG information is not larger than 2 to the power of Lth.
  • the CG information indication is implicitly indicated by at least one field in the DCI.
  • the terminal device comprises circuitry configured to: determine a fourth HARQ process number based on the DCI; and determine the indicated CG information associated with the second UCI based on the fourth HARQ process number.
  • the terminal device comprises circuitry configured to: if a fourth HARQ process indicated by the fourth HARQ process number is associated with the first CG information, determine that the indicated CG information is the first CG information.
  • the terminal device comprises circuitry configured to: transmit the second UCI associated with the indicated CG information.
  • a network device comprises circuitry configured to: transmit, to a terminal device, first CG information indicating a first number of configured CG occasions in each CG period; determine that a reception of a first UCI for a first CG period associated with the first CG information is failed, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; in accordance with a determination that the reception of the first UCI is failed, transmit, to the terminal device, a DCI indicating to transmit a second UCI associated with the first CG period or the first CG information; and receive, from the terminal device, the second UCI based on the DCI.
  • the DCI comprises at least one of: a UCI request field carrying at least one bit equaling to a first predefined value, or a UL grant scheduling a transmission associated with the first CG information.
  • the UL grant is addressed to a CS-RNTI and an NDI in the UL grant is equal to a preset value. In some example embodiments, the UL grant is addressed to a C-RNTI and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • the network device comprises circuitry configured to: receive the second UCI based on a first HARQ process number indicated by the DCI.
  • the network device comprises circuitry configured to: receive the second UCI multiplexed with a retransmission data in a used CG occasion associated with the first HARQ process number.
  • the network device comprises circuitry configured to: if the first HARQ process number is associated with a transmission not associated with the first CG information, receive the second UCI multiplexed with the transmission based on the DCI.
  • the network device comprises circuitry configured to: receive the second UCI multiplexed with a MAC PDU stored in a first HARQ buffer of a first HARQ process indicated by the first HARQ process number.
  • the DCI comprises a UL grant
  • the network device comprises circuitry configured to: receive the second UCI comprising a presence indication based on the UL grant, wherein the presence indication indicates that there is no UL-SCH transmitted with the second UCI.
  • the network device comprises circuitry configured to: receive the second UCI multiplexed with a further MAC PDU stored in a second HARQ buffer of a second HARQ process different from a first HARQ process indicated by the first HARQ process number.
  • the second UCI further comprises an indication of the second HARQ process number.
  • the first HARQ process number is associated with an unused CG occasion
  • the second HARQ process is associated with a used CG occasion in a second CG period which the unused CG occasion is associated with.
  • the second HARQ process has a highest priority or a least remaining delay budget among a plurality of HARQ processes associated with the first HARQ process number.
  • the network device comprises circuitry configured to: receive the second UCI in a PUCCH after a time offset.
  • the network device comprises circuitry configured to: transmit, to the terminal device, a further DCI indicating the time offset.
  • the second UCI is a retransmission of the first UCI, or at least a part of information comprised in the first UCI is comprised in the second UCI.
  • the DCI indicates an indicated CG period associated with the second UCI, wherein the indicated CG period is the first CG period.
  • the DCI comprises a CG period indication indicating the indicated CG period associated with the second UCI.
  • the CG period indication comprises a plurality of bits equaling to K, the plurality of bits are used to indicate a plurality of CG periods, a number of the plurality of CG periods is not larger than 2 to the power of Kth.
  • the plurality of bits equaling to a second predefined value are used to indicate that the indicated CG period is a most recent CG period; and wherein the plurality of bits equaling to a value different from the second predefined value are used to indicate that the indicated CG period is a CG period having an interval with the most recent CG period, where a number of CG periods of the interval equals to a difference between the value and the second predefined value.
  • the most recent CG period comprised one of: a latest CG period with at least one CG occasion which has been used for transmission before a reception time of the DCI; a latest CG period with at least one CG occasion which has been used for transmission before a time equaling to the reception time plus an offset time; or a CG period in which the DCI is received by the terminal device.
  • the indicated CG period is indicated based on an index of a CG period in which the DCI is received by the terminal device and a value of the plurality of bits.
  • an index of the indicated CG period is indicated based on a value of the plurality of bits.
  • the indicated CG period is associated with an index of a time unit, wherein the index of the time unit is indicated based on a value of the plurality of bits, and where the time unit is at least one of: a symbol, a slot, a subframe, or a system frame.
  • the indicated CG period is implicated indicated by at least one field in the DCI.
  • the network device comprises circuitry configured to: determine the indicated CG period associated with a third HARQ process number indicated by the DCI.
  • the network device comprises circuitry configured to: if an initial transmission of a third HARQ process indicated by the third HARQ process number is in the first CG period, determine that the indicated CG period associated with the second UCI is the first CG period.
  • the network device comprises circuitry configured to: receive the second UCI associated with the indicated CG period.
  • the network device comprises circuitry configured to: transmit, to the terminal device, second CG information indication a second number of configured CG occasions in each CG period; and where the DCI indicates indicated CG information associated with the second UCI, wherein the indicated CG information is the first CG information.
  • the DCI comprises a CG information indication indicating the indicated CG information associated with the second UCI.
  • the CG information indication comprises a plurality of bits equaling to L, the plurality of bits are used to indicate a plurality of pieces of CG information, a number of the plurality of pieces of CG information is not larger than 2 to the power of Lth.
  • the CG information indication is implicitly indicated by at least one field in the DCI.
  • the network device comprises circuitry configured to: determine the indicated CG information associated with a fourth HARQ process number indicated by the DCI.
  • the network device comprises circuitry configured to: if a fourth HARQ process indicated by the fourth HARQ process number is associated with the first CG information, determine that the indicated CG information is the first CG information.
  • the network device comprises circuitry configured to: receive the second UCI associated with the indicated CG information.
  • FIG. 8 illustrates a simplified block diagram of a device 800 that is suitable for implementing embodiments of the present disclosure.
  • the device 800 can be considered as a further example implementation of the terminal device 120, and the network device 110 as shown in FIG. 1. Accordingly, the device 800 can be implemented at or as at least a part of the terminal device 120, or the network device 110.
  • the device 800 includes a processor 810, a memory 820 coupled to the processor 810, a suitable transmitter (TX) and receiver (RX) 840 coupled to the processor 810, and a communication interface coupled to the TX/RX 840.
  • the memory 810 stores at least a part of a program 830.
  • the TX/RX 840 is for bidirectional communications.
  • the TX/RX 840 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this disclosure may have several ones.
  • the communication interface may represent any interface that is necessary for communication with other network elements, such as X2 interface for bidirectional communications between eNBs, S1 interface for communication between a Mobility Management Entity (MME) /Serving Gateway (S-GW) and the eNB, Un interface for communication between the eNB and a relay node (RN) , or Uu interface for communication between the eNB and a terminal device.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • Un interface for communication between the eNB and a relay node (RN)
  • Uu interface for communication between the eNB and a terminal device.
  • the program 830 is assumed to include program instructions that, when executed by the associated processor 810, enable the device 800 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGS. 1-7.
  • the embodiments herein may be implemented by computer software executable by the processor 810 of the device 800, or by hardware, or by a combination of software and hardware.
  • the processor 810 may be configured to implement various embodiments of the present disclosure.
  • a combination of the processor 810 and memory 820 may form processing means 850 adapted to implement various embodiments of the present disclosure.
  • the memory 820 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 820 is shown in the device 800, there may be several physically distinct memory modules in the device 800.
  • the processor 810 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 800 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • embodiments of the present disclosure may provide the following solutions.
  • the present disclosure provides a terminal device, comprising at least one processor configured to cause the terminal device at least to: receive, from a network device, first configured grant (CG) information indicating a first number of configured CG occasions in each CG period; transmit, to the network device, first uplink control information (UCI) for a first CG period associated with the first CG information, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; receive, from the network device, downlink control information (DCI) indicating to transmit a second UCI associated with the first CG period or the first CG information; and transmit, to the network device, the second UCI based on the DCI.
  • CG configured grant
  • UCI uplink control information
  • DCI downlink control information
  • the terminal device as above, the DCI comprises at least one of: a UCI request field carrying at least one bit equaling to a first predefined value, or an uplink (UL) grant scheduling a transmission associated with the first CG information.
  • a UCI request field carrying at least one bit equaling to a first predefined value
  • UL uplink
  • the terminal device as above, the UL grant is addressed to a configured scheduling -radio network temporary identifier (CS-RNTI) and a new data indicator (NDI) in the UL grant is equal to a preset value, or wherein the UL grant is addressed to a cell -radio network temporary identifier (C-RNTI) and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • CS-RNTI configured scheduling -radio network temporary identifier
  • NDI new data indicator
  • C-RNTI cell -radio network temporary identifier
  • the terminal device as above, the terminal device is further caused to: determine a first hybrid automatic repeat request (HARQ) process number based on the DCI; and transmit the second UCI based on the first HARQ process number.
  • HARQ hybrid automatic repeat request
  • the terminal device is caused to transmit the second UCI number based on the first HARQ process number by: in accordance with a determination that the first HARQ process number is associated with a used CG occasion, multiplexing the second UCI with a retransmission data in the used CG occasion.
  • the terminal device is caused to transmit the second UCI based on the first HARQ process number by: in accordance with a determination that the first HARQ process number is associated with a transmission not associated with the first CG information, multiplexing the second UCI with the transmission based on the DCI.
  • the terminal device is caused to transmit the second UCI based on the first HARQ process number by: in accordance with a determination that there is a medium access control (MAC) protocol data unit (PDU) stored in a HARQ buffer of a first HARQ process indicated by the first HARQ process number, multiplexing the second UCI with the MAC PDU.
  • MAC medium access control
  • PDU protocol data unit
  • the terminal device as above, the DCI comprises a UL grant, and wherein the terminal device is caused to transmit the second UCI based on the first HARQ process number by: in accordance with a determination that the first HARQ process number is associated with an unused CG occasion or there is no MAC PDU stored in a HARQ buffer of a first HARQ process indicated by the first HARQ process number, transmitting the second UCI comprising a presence indication based on the UL grant, wherein the presence indication indicates that there is no uplink shared channel (UL-SCH) transmitted with the second UCI.
  • UL-SCH uplink shared channel
  • the terminal device is caused to transmit the second UCI based on the first HARQ process number by: in accordance with a determination that the first HARQ process number is associated with an unused CG occasion or there is no MAC PDU stored in a first HARQ buffer of a first HARQ process indicated by the first HARQ process number, determining a second HARQ process different from the first HARQ process indicated by the first HARQ process number; and multiplexing the second UCI with a further MAC PDU stored in a second HARQ buffer of the second HARQ process.
  • the terminal device as above, the second UCI further comprises an indication of the second HARQ process number.
  • the terminal device is caused to determine the second HARQ process by: determining the second HARQ process being associated with a used CG occasion in a second CG period which the unused CG occasion is associated with.
  • the terminal device is caused to determine the second HARQ process by: determining a plurality of HARQ processes associated with the first HARQ process number; and determining the second HARQ process as a HARQ process with a highest priority or with a least remaining delay budget among the plurality of HARQ processes.
  • the terminal device as above, the terminal device is caused to transmit the second UCI by: transmitting the second UCI in a physical uplink control channel (PUCCH) after a time offset.
  • PUCCH physical uplink control channel
  • the terminal device as above, the terminal device is further caused to: receive, from the network device, a further DCI indicating the time offset.
  • the terminal device as above, the second UCI is a retransmission of the first UCI, or at least a part of information comprised in the first UCI is comprised in the second UCI.
  • the terminal device is further caused to: transmit, to the network device, a third UCI for a third CG period associated with the first CG information, the third UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the third CG period; and determine an indicated CG period associated with the second UCI based on the DCI.
  • the terminal device as above, the DCI comprises a CG period indication indicating the indicated CG period associated with the second UCI.
  • the terminal device as above, the CG period indication comprises a plurality of bits equaling to K, the plurality of bits are used to indicate a plurality of CG periods, a number of the plurality of CG periods is not larger than 2 to the power of Kth.
  • the terminal device is caused to determine the indicated CG period by: in accordance with a determination that the plurality of bits equal to a second predefined value, determining that the indicated CG period is a most recent CG period; in accordance with a determination that the plurality of bits equal to a value different from the second predefined value, determining that the indicated CG period is a CG period having an interval with the most recent CG period, wherein a number of CG periods of the interval equals to a difference between the value and the second predefined value.
  • the terminal device as above, the most recent CG period comprised one of: a latest CG period with at least one CG occasion which has been used for transmission before a reception time of the DCI; a latest CG period with at least one CG occasion which has been used for transmission before a time equaling to the reception time plus an offset time; or a CG period in which the DCI is received.
  • the terminal device is caused to determine the indicated CG period by: determining the indicated CG period based on an index of a CG period in which the DCI is received and a value of the plurality of bits.
  • the terminal device as above, the terminal device is caused to determine the indicated CG period by: determining an index of the indicated CG period based on a value of the plurality of bits.
  • the terminal device is caused to determine the indicated CG period by: determining an index of a time unit which is associated with the indicated CG period based on a value of the plurality of bits, where the time unit is at least one of: a symbol, a slot, a subframe, or a system frame.
  • the terminal device as above the indicated CG period is implicated indicated by at least one field in the DCI.
  • the terminal device as above, the terminal device is further caused to: determine a third HARQ process number based on the DCI; and determine the indicated CG period associated with the second UCI based on the third HARQ process number.
  • the terminal device is caused to determine the indicated CG period associated with the second UCI based on the third HARQ process number by: in accordance with a determination that an initial transmission of a third HARQ process indicated by the third HARQ process number is in the first CG period, determining that the indicated CG period is the first CG period.
  • the terminal device as above, the terminal device is caused to transmit the second UCI by: transmitting the second UCI associated with the indicated CG period.
  • the terminal device is further caused to: receive, from the network device, second CG information indication a second number of configured CG occasions in each CG period; transmit, to the network device, a fourth UCI for a fourth CG period associated with the second CG information, the fourth UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the second number of configured CG occasions in the fourth CG period; and determine indicated CG information associated with the second UCI based on the DCI.
  • the terminal device as above, the DCI comprises a CG information indication indicating the indicated CG information associated with the second UCI.
  • the terminal device as above, the CG information indication comprises a plurality of bits equaling to L, the plurality of bits are used to indicate a plurality of pieces of CG information, a number of the plurality of pieces of CG information is not larger than 2 to the power of Lth.
  • the terminal device as above, the CG information indication is implicitly indicated by at least one field in the DCI.
  • the terminal device as above, the terminal device is further caused to: determine a fourth HARQ process number based on the DCI; and determine the indicated CG information associated with the second UCI based on the fourth HARQ process number.
  • the terminal device is caused to determine the indicated CG information associated with the second UCI based on the fourth HARQ process number by: in accordance with a determination that a fourth HARQ process indicated by the fourth HARQ process number is associated with the first CG information, determining that the indicated CG information is the first CG information.
  • the terminal device as above, the terminal device is caused to transmit the second UCI by: transmitting the second UCI associated with the indicated CG information.
  • the present disclosure provides a network device, comprising at least one processor configured to cause the network device at least to: transmit, to a terminal device, first configured grant (CG) information indicating a first number of configured CG occasions in each CG period; determine that a reception of first uplink control information (UCI) for a first CG period associated with the first CG information is failed, the first UCI indicating at least one used CG occasion and/or at least one unused CG occasion among the first number of configured CG occasions in the first CG period; in accordance with a determination that the reception of the first UCI is failed, transmit, to the terminal device, downlink control information (DCI) indicating to transmit a second UCI associated with the first CG period or the first CG information; and receive, from the terminal device, the second UCI based on the DCI.
  • CG configured grant
  • DCI downlink control information
  • the DCI comprises at least one of: a UCI request field carrying at least one bit equaling to a first predefined value, or an uplink (UL) grant scheduling a transmission associated with the first CG information.
  • the network device as above, the UL grant is addressed to a configured scheduling -radio network temporary identifier (CS-RNTI) and a new data indicator (NDI) in the UL grant is equal to a preset value, or wherein the UL grant is addressed to a cell -radio network temporary identifier (C-RNTI) and the UL grant indicates a HARQ process number which is configured for a configured uplink grant.
  • CS-RNTI configured scheduling -radio network temporary identifier
  • NDI new data indicator
  • C-RNTI cell -radio network temporary identifier
  • the network device is caused to receive the second UCI by: receiving the second UCI based on a first hybrid automatic repeat request (HARQ) process number indicated by the DCI.
  • HARQ hybrid automatic repeat request
  • the network device is caused to receive the second UCI by: receiving the second UCI multiplexed with a retransmission data in a used CG occasion associated with the first HARQ process number.
  • the network device is caused to receive the second UCI by: in accordance with a determination that the first HARQ process number is associated with a transmission not associated with the first CG information, receiving the second UCI multiplexed with the transmission based on the DCI.
  • the network device is caused to receive the second UCI by: receiving the second UCI multiplexed with a medium access control (MAC) protocol data unit (PDU) stored in a first HARQ buffer of a first HARQ process indicated by the first HARQ process number.
  • MAC medium access control
  • PDU protocol data unit
  • the DCI comprises a UL grant
  • the network device is caused to receive the second UCI by: receiving the second UCI comprising a presence indication based on the UL grant, wherein the presence indication indicates that there is no uplink shared channel (UL-SCH) transmitted with the second UCI.
  • UL-SCH uplink shared channel
  • the network device is caused to receive the second UCI by: receiving the second UCI multiplexed with a further MAC PDU stored in a second HARQ buffer of a second HARQ process different from a first HARQ process indicated by the first HARQ process number.
  • the network device as above, the second UCI further comprises an indication of the second HARQ process number.
  • the network device as above, the first HARQ process number is associated with an unused CG occasion, and the second HARQ process is associated with a used CG occasion in a second CG period which the unused CG occasion is associated with.
  • the network device as above, the second HARQ process has a highest priority or a least remaining delay budget among a plurality of HARQ processes associated with the first HARQ process number.
  • the network device is caused to receive the second UCI by: receiving the second UCI in a physical uplink control channel (PUCCH) after a time offset.
  • PUCCH physical uplink control channel
  • the network device is further caused to: transmit, to the terminal device, a further DCI indicating the time offset.
  • the second UCI is a retransmission of the first UCI, or at least a part of information comprised in the first UCI is comprised in the second UCI.
  • the DCI indicates an indicated CG period associated with the second UCI, wherein the indicated CG period is the first CG period.
  • the DCI comprises a CG period indication indicating the indicated CG period associated with the second UCI.
  • the CG period indication comprises a plurality of bits equaling to K, the plurality of bits are used to indicate a plurality of CG periods, a number of the plurality of CG periods is not larger than 2 to the power of Kth.
  • the network device as above, the plurality of bits equaling to a second predefined value are used to indicate that the indicated CG period is a most recent CG period; and wherein the plurality of bits equaling to a value different from the second predefined value are used to indicate that the indicated CG period is a CG period having an interval with the most recent CG period, wherein a number of CG periods of the interval equals to a difference between the value and the second predefined value.
  • the network device as above, the most recent CG period comprised one of: a latest CG period with at least one CG occasion which has been used for transmission before a reception time of the DCI; a latest CG period with at least one CG occasion which has been used for transmission before a time equaling to the reception time plus an offset time; or a CG period in which the DCI is received by the terminal device.
  • the indicated CG period is indicated based on an index of a CG period in which the DCI is received by the terminal device and a value of the plurality of bits.
  • an index of the indicated CG period is indicated based on a value of the plurality of bits.
  • the indicated CG period is associated with an index of a time unit, wherein the index of the time unit is indicated based on a value of the plurality of bits, and wherein the time unit is at least one of: a symbol, a slot, a subframe, or a system frame.
  • the network device as above the indicated CG period is implicated indicated by at least one field in the DCI.
  • the network device as above, the network device is further caused to: determine the indicated CG period associated with a third HARQ process number indicated by the DCI.
  • the network device is caused to determine the indicated CG period by: in accordance with a determination that an initial transmission of a third HARQ process indicated by the third HARQ process number is in the first CG period, determining that the indicated CG period associated with the second UCI is the first CG period.
  • the network device as above, the network device is caused to receive the second UCI by: receiving the second UCI associated with the indicated CG period.
  • the network device is further caused to: transmit, to the terminal device, second CG information indication a second number of configured CG occasions in each CG period; and wherein the DCI indicates indicated CG information associated with the second UCI, wherein the indicated CG information is the first CG information.
  • the DCI comprises a CG information indication indicating the indicated CG information associated with the second UCI.
  • the network device as above, the CG information indication comprises a plurality of bits equaling to L, the plurality of bits are used to indicate a plurality of pieces of CG information, a number of the plurality of pieces of CG information is not larger than 2 to the power of Lth.
  • the network device as above, the CG information indication is implicitly indicated by at least one field in the DCI.
  • the network device as above, the network device is further caused to: determine the indicated CG information associated with a fourth HARQ process number indicated by the DCI.
  • the network device is caused to determine the indicated CG information by: in accordance with a determination that a fourth HARQ process indicated by the fourth HARQ process number is associated with the first CG information, determining that the indicated CG information is the first CG information.
  • the network device as above, the network device is caused to receive the second UCI by: receiving the second UCI associated with the indicated CG information.
  • the present disclosure provides a method of communication, comprising the operations implemented at the terminal device discussed above.
  • the present disclosure provides a method of communication, comprising the operations implemented at the network device discussed above.
  • the present disclosure provides a terminal device, comprising: a processor; and a memory storing computer program codes; the memory and the computer program codes configured to, with the processor, cause the terminal device to perform the method implemented at the terminal device discussed above.
  • the present disclosure provides a network device, comprising: a processor; and a memory storing computer program codes; the memory and the computer program codes configured to, with the processor, cause the network device to perform the method implemented at the network device discussed above.
  • the present disclosure provides a computer readable medium having instructions stored thereon, the instructions, when executed by a processor of an apparatus, causing the apparatus to perform the method implemented at a terminal device or a network device discussed above.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representation, it will be appreciated that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the process or method as described above with reference to FIGS. 2-7.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the above program code may be embodied on a machine readable medium, which may be any tangible medium that may contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • the machine readable medium may be a machine readable signal medium or a machine readable storage medium.
  • a machine readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • machine readable storage medium More specific examples of the machine readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • RAM random access memory
  • ROM read-only memory
  • EPROM or Flash memory erasable programmable read-only memory
  • CD-ROM portable compact disc read-only memory
  • magnetic storage device or any suitable combination of the foregoing.

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

Abstract

Des modes de réalisation donnés à titre d'exemple de la présente divulgation concernent des procédés, des dispositifs et un support de stockage informatique pour une communication. Un dispositif terminal reçoit des premières informations de CG indiquant un premier nombre d'occasions de CG configurées dans chaque période de CG en provenance d'un dispositif de réseau. Le dispositif terminal transmet des premières UCI au dispositif de réseau, les premières UCI indiquant au moins une occasion de CG utilisée et/ou au moins une occasion de CG non utilisée parmi le premier nombre d'occasions de CG configurées dans la première période de CG. Le dispositif terminal reçoit des DCI en provenance du dispositif de réseau, les DCI indiquant de transmettre des secondes UCI associées à la première période de CG ou aux premières informations de CG. Le dispositif terminal transmet les secondes UCI sur la base des DCI au dispositif de réseau. Ainsi, dans le cas où la réception des premières UCI au niveau du dispositif de réseau échoue, des DCI indiquant de transmettre les secondes UCI peuvent être transmises, et par conséquent les secondes UCI peuvent être transmises au dispositif de réseau. Par conséquent, le dispositif de réseau peut être informé de ladite au moins une occasion de CG utilisées et/ou de ladite au moins une occasion de CG inutilisée, et la planification d'une retransmission d'une occasion CG inutilisée peut être évitée. Par conséquent, l'efficacité d'une communication entre le dispositif terminal et le dispositif de réseau peut être améliorée et les ressources peuvent être utilisées plus efficacement.
PCT/CN2023/073260 2023-01-19 2023-01-19 Dispositifs, procédés et support de communication WO2024152333A1 (fr)

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