WO2023272723A1 - Procédé, dispositif et support de stockage informatique de communication - Google Patents

Procédé, dispositif et support de stockage informatique de communication Download PDF

Info

Publication number
WO2023272723A1
WO2023272723A1 PCT/CN2021/104282 CN2021104282W WO2023272723A1 WO 2023272723 A1 WO2023272723 A1 WO 2023272723A1 CN 2021104282 W CN2021104282 W CN 2021104282W WO 2023272723 A1 WO2023272723 A1 WO 2023272723A1
Authority
WO
WIPO (PCT)
Prior art keywords
target
repetitions
slots
determining
slot
Prior art date
Application number
PCT/CN2021/104282
Other languages
English (en)
Inventor
Xiaohong Zhang
Lin Liang
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/CN2021/104282 priority Critical patent/WO2023272723A1/fr
Publication of WO2023272723A1 publication Critical patent/WO2023272723A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT

Definitions

  • Embodiments of the present disclosure generally relate to the field of telecommunication, and in particular, to methods, devices and computer storage media of communication for repetitions of a hybrid automatic repeat request (HARQ) feedback.
  • HARQ hybrid automatic repeat request
  • NR Release 16 for a terminal device configured with carrier aggregation (CA) , only an uplink (UL) carrier of a component carrier (CC) is configured to transmit a physical uplink control channel (PUCCH) for HARQ feedback within a cell group, also called PUCCH group, e.g., primary cell.
  • PUCCH group also called PUCCH group, e.g., primary cell.
  • PUCCH carrier switching for HARQ feedback is proposed in which a set of cells are configured for PUCCH transmission within a PUCCH group, and then the PUCCH for HARQ-ACK transmission is switched among the set of cells.
  • sub-slot or slot based repetitions for the HARQ feedback can be configured for a terminal device.
  • implementations for the PUCCH repetitions are incomplete, especially in case that the PUCCH carrier switching based on a based on a semi-static configuration is configured, which will lead the ambiguity on the PUCCH repetition pattern for HARQ-ACK between a terminal device and a network device.
  • embodiments of the present disclosure provide methods, devices and computer storage media of communication for repetitions of a HARQ feedback.
  • a method of communication comprises: receiving, at a terminal device, a data transmission from a network device; determining, based on the number of repetitions configured or indicated for a HARQ transmission for the data transmission and a RRC configuration indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology, a set of target cells and a set of target slots on the set of target cells for the repetitions of the HARQ transmission; and transmitting, to the network device, the repetitions of the HARQ transmission in the set of target slots on the set of target cells.
  • a method of communication comprises: transmitting, at a network device, a data transmission to a terminal device; determining, based on the number of repetitions configured or indicated for a HARQ transmission for the data transmission and a RRC configuration indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology, a set of target cells and a set of target slots on the set of target cells for the repetitions of the HARQ transmission; and receiving, from the terminal device, the repetitions of the HARQ transmission in the set of target slots on the set of target cells.
  • a terminal device comprising a processor configured to perform the method according to the first aspect of the present disclosure.
  • a network device comprising a processor configured to perform the method according to the second aspect of the present disclosure.
  • a computer readable medium having instructions stored thereon.
  • the instructions when executed on at least one processor, cause the at least one processor to perform the method according to the first aspect of the present disclosure.
  • a computer readable medium having instructions stored thereon.
  • the instructions when executed on at least one processor, cause the at least one processor to perform the method according to the second aspect of the present disclosure.
  • FIG. 1 illustrates an example communication network in which some embodiments of the present disclosure can be implemented
  • FIG. 2 illustrates a flow chart illustrating a process of communication for PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 3 illustrates a schematic diagram illustrating an example scenario of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 4 illustrates a schematic diagram illustrating an example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 5 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 6 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 7 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 8 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 9 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • FIG. 10 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 11 illustrates a schematic diagram illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 12 illustrates a schematic diagram illustrating an example determination of resources for PUCCH repetitions according to embodiments of the present disclosure
  • FIG. 13 illustrates a flow chart illustrating a process of communication implemented at a terminal device according to embodiments of the present disclosure
  • FIG. 14 illustrates a flow chart illustrating a process of communication implemented at a network device according to embodiments of the present disclosure.
  • FIG. 15 is a simplified block diagram of a device that is suitable for implementing embodiments of the present disclosure.
  • terminal device refers to any device having wireless or wired communication capabilities.
  • the 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, Internet of Everything (IoE) devices, machine type communication (MTC) devices, device on vehicle for V2X communication where X means pedestrian, vehicle, or infrastructure/network, or image capture devices such as digital cameras, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like.
  • UE user equipment
  • PDAs personal digital assistants
  • IoT internet of things
  • IoE Internet of Everything
  • MTC machine type communication
  • X means pedestrian, vehicle, or infrastructure/network
  • image capture devices such as digital cameras, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like.
  • 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.
  • network device refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate.
  • Examples of a network device include, but not limited to, 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) , a low power node such as a femto node, a pico node, and the like.
  • NodeB Node B
  • eNodeB or eNB Evolved NodeB
  • gNB next generation NodeB
  • TRP Transmission Reception Point
  • RRU Remote Radio Unit
  • RH radio head
  • RRH remote radio head
  • a low power node such as a femto node, a pico node, and the like.
  • 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 or 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.
  • the singular forms ‘a’ , ‘an’ and ‘the’ are intended to include the plural forms as well, unless the context clearly indicates otherwise.
  • the term ‘includes’ and its variants are to be read as open terms that mean ‘includes, but is not limited to. ’
  • the term ‘based on’ is to be read as ‘at least in part based on. ’
  • the term ‘one embodiment’ and ‘an embodiment’ are to be read as ‘at least one embodiment. ’
  • the term ‘another embodiment’ is to be read as ‘at least one other embodiment. ’
  • the terms ‘first, ’ ‘second, ’ and the like may refer to different or same objects. Other definitions, explicit and implicit, may be included below.
  • 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.
  • PUCCH repetitions are incomplete.
  • a PUCCH carrier switching based on a semi-static configuration such as a RRC configured PUCCH cell timing pattern of applicable PUCCH cells
  • inter-PUCCH repetition carrier switching is supported, that is, whether a switching of a cell within repetitions of HARQ-ACK transmission is supported.
  • resources for the PUCCH repetitions on more than one cell are examples of resources for the PUCCH repetitions on more than one cell.
  • a set of target cells and a set of target slots on the set of target cells for repetitions of HARQ transmission is determined based on the number of repetitions configured for the HARQ transmission and a RRC configuration (for example, a RRC configured PUCCH cell timing pattern of applicable PUCCH cells) indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology.
  • a RRC configuration for example, a RRC configured PUCCH cell timing pattern of applicable PUCCH cells
  • Embodiments of the present disclosure may be applied to any suitable scenarios.
  • embodiments of the present disclosure may be implemented at URLLC.
  • embodiments of the present disclosure can be implemented in one of the followings: reduced capability NR devices, 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.
  • NB-IOT narrow band-Internet of Thing
  • eMTC enhanced Machine Type Communication
  • NTN non-terrestrial networks
  • IAB Integrated Access and Backhaul
  • IAB Integrated
  • FIG. 1 illustrates a schematic diagram of an example communication network 100 in which some embodiments of the present disclosure can be implemented.
  • the communication network 100 may include a terminal device 110 and a network device 120.
  • the terminal device 110 may be served by the network device 120.
  • the communication network 100 may include any suitable number of network devices and/or terminal devices adapted for implementing implementations of the present disclosure.
  • the terminal device 110 may communicate with the network device 120 via a channel such as a wireless communication channel.
  • the communications in the communication network 100 may conform to any suitable standards including, but not limited to, Global System for Mobile Communications (GSM) , Long Term Evolution (LTE) , LTE-Evolution, LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) , GSM EDGE Radio Access Network (GERAN) , Machine Type Communication (MTC) and the like.
  • GSM Global System for Mobile Communications
  • LTE Long Term Evolution
  • LTE-Evolution LTE-Advanced
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • GERAN GSM EDGE Radio Access Network
  • MTC Machine Type Communication
  • the communications 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.
  • the terminal device 110 may transmit uplink data to the network device 120 via an uplink data channel transmission.
  • the uplink data channel transmission may be a physical uplink shared channel (PUSCH) transmission.
  • PUSCH physical uplink shared channel
  • the terminal device 110 may transmit uplink control information (UCI) , e.g., HARQ feedback information to the network device 120 via an uplink control channel transmission.
  • UCI uplink control information
  • the uplink control channel transmission may be a PUCCH transmission.
  • PUCCH Physical Uplink Control Channel
  • the network device 120 may support a plurality of services have different priorities for the terminal device 110, for example, eMBB with a lower priority and URLLC with a higher priority. Accordingly, the terminal device 110 may perform respective uplink data and/or control channel transmissions for the different services.
  • the uplink control channel transmissions may carry HARQ feedbacks for different services and the HARQ feedbacks may have different priorities corresponding to different services.
  • the network device 120 may provide a plurality of serving cells (not shown herein) for the terminal device 110, for example, a primary cell (Pcell) , a primary secondary cell (PScell) , a secondary cell (Scell) , a special cell (sPCell) or the like.
  • Each of the serving cells may correspond to a CC.
  • the terminal device 110 may perform transmission with the network device 120 via a CC.
  • the terminal device 110 may perform transmission with the network device 120 via multiple CCs, for example, in case of CA.
  • a cell group is provided by the network device 120 to the terminal device 110. At least one cell within the cell group is configured with UL carrier for PUCCH transmission for HARQ-ACK of PDSCH receptions on all cells in the cell group.
  • PUCCH transmission for HARQ feedback may be performed on a cell with early available UL symbols within the at least one cell, then the low HARQ-ACK feedback latency can be achieved.
  • the switching of PUCCH cell within the cell group may be called as PUCCH carrier switching.
  • the PUCCH carrier switching may be performed based on a RRC configuration. That is, when a set of cells are configured for PUCCH transmission for the terminal device 110, the terminal device 110 firstly determines the slot or sub-slot for PUCCH transmission based on HARQ-ACK timing value with a reference numerology, and the reference numerology may be associated with the largest subcarrier space, the numerology of Pcell, or configured by RRC. Then the terminal device 110 determines a cell from the set of cells for PUCCH transmission within the slot or sub-slot for HARQ-ACK based on a RRC configured PUCCH cell timing pattern for mapping between slot or sub-slot index and PUCCH cell index.
  • a RRC configuration That is, when a set of cells are configured for PUCCH transmission for the terminal device 110, the terminal device 110 firstly determines the slot or sub-slot for PUCCH transmission based on HARQ-ACK timing value with a reference numerology, and the reference numerology may be associated with the largest subcarrier space,
  • Embodiments of the present disclosure provide a solution for repetitions of the PUCCH transmission. The detailed description will be made with reference to FIGs. 2-11 below.
  • FIG. 2 illustrates a flow chart illustrating a process 200 of communication for PUCCH repetitions according to embodiments of the present disclosure. For the purpose of discussion, the process 200 will be described with reference to FIG. 1. The process 200 may involve the terminal device 110 and the network device 120 as illustrated in FIG. 1.
  • the network device 120 transmits 201 a data transmission to the terminal device 110.
  • the data transmission may be a PDSCH. It is to be understood that any other suitable DL data transmissions are also feasible.
  • the terminal device 110 Upon receipt of the data transmission from the network device 120, the terminal device 110 determines 202 a set of target cells and a set of target slots on the set of target cells based on the number of repetitions configured for a transmission of a HARQ feedback for the data transmission and a RRC configuration.
  • the RRC configuration indicates that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology.
  • the RRC configuration indicates that a PUCCH carrier switching based on a semi-static configuration is configured or enabled.
  • the RRC configuration may be in a form of a RRC configured PUCCH cell timing pattern of applicable PUCCH cells.
  • the RRC configuration may also adopt any other suitable forms, and the present disclosure does not limit this aspect.
  • the RRC configuration will be described by taking the RRC configured PUCCH cell timing pattern of applicable PUCCH cells as an example.
  • FIG. 3 illustrates a schematic diagram illustrating an example scenario 300 of PUCCH repetitions according to embodiments of the present disclosure.
  • a slot of the first scheduled HARQ transmission for the PDSCH transmission 320 is slot #1.
  • the PUCCH cell within slot #1 for HARQ-ACK for the PDSCH transmission 320 is CC #0.
  • the first scheduled HARQ transmission 321 (also referred to as a first repetition herein) is determined to be performed on CC #0 in slot #1.
  • next available slot on CC #0 is slot #2
  • the second scheduled HARQ transmission 322 (also referred to as a second repetition herein) is determined to be performed on CC #0 in slot #2.
  • next two available slots on CC #0 are slots #5 and #6. If PUCCH carrier switching is enabled, the next two available slots may be slots #3 and #4 on CC #1. Thus, it is unclear whether third and fourth repetitions are transmitted in slots #5 and #6 on CC #0 or in slots #3 and #4 on CC #1. So whether inter-PUCCH repetition carrier switching is operated or not needs to be studied, and then a unique PUCCH repetition pattern for HARQ-ACK can be determined.
  • embodiments of the present disclosure provide solutions for determining a set of target cells and a set of target slots on the set of target cells for PUCCH repetitions. These solutions will be described in connection with Embodiments 1 to 5.
  • the inter-PUCCH repetition carrier switching is not supported, and all the PUCCH repetitions of a HARQ transmission are transmitted on one PUCCH cell.
  • the set of target cells may comprise one target cell (i.e., one PUCCH cell) .
  • the terminal device 110 may receive DCI indicating a first slot for the HARQ transmission, determine a first cell associated with the first slot based on the RRC configured PUCCH cell timing pattern of applicable PUCCH cells, and determine the first cell as the target cell for the PUCCH repetitions.
  • the terminal device 110 may determine the set of target slots by determining the first number of the earliest available slots on the target cell starting from the first slot.
  • An available slot refers to a slot having enough UL symbols or flexible symbols for PUCCH transmission.
  • each PUCCH repetition has the same start symbol, length or PUCCH format.
  • the granularity of the first number of the earliest available slots may be based on a numerology or sub-carrier spacing (SCS) of the target cell.
  • the granularity of the slots may be based on a reference numerology for the RRC configuration.
  • the reference numerology may be preconfigured.
  • the reference numerology may be associated with the PUCCH cell timing pattern.
  • FIG. 4 illustrates a schematic diagram 400 illustrating an example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the same numerology (for example, SCS of 30KHz) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 410 with a reference numerology or SCS of 30KHz.
  • the HARQ transmission is on slot #1 based on the reference numerology.
  • the terminal device 110 may determine the cell CC#0 as the target cell for all the repetitions.
  • the 4 earliest available slots on CC #0 (i.e., slot #1, slot #2, slot #5 and slot #6 on CC#0) from slot #1 may be determined as the set of target slots.
  • the first repetition 421, the second repetition 422, the third repetition 423 and the fourth repetition 424 are to be transmitted respectively in slot #1, slot #2, slot #5 and slot #6 on CC#0.
  • FIG. 5 illustrates a schematic diagram 500 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the different numerologies or SCSs (for example, 60KHz for CC #0 and 30 KHz for CC #1) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 510 with a reference numerology (SCS of 30KHz) .
  • the target slots are determined based on a numerology of the target cell.
  • the HARQ transmission is on slot #1 based on the reference numerology (SCS of 30KHz) .
  • SCS reference numerology
  • the terminal device 110 may determine the cell CC#0 as the target cell for all the repetitions.
  • slot #1 based on the reference numerology corresponds to slot #2 based on SCS of 60KHz on CC #0, and the number of repetitions equal to 4, the 4 earliest available slots on CC #0 (i.e., slot #2, slot #3, slot #4 and slot #6 on CC#0) from slot #2 may be determined as the set of target slots based on the numerology of CC #0 (SCS of 60KHz) .
  • the first repetition 521, the second repetition 522, the third repetition 523 and the fourth repetition 524 are to be transmitted respectively in slot #2, slot #3, slot #4 and slot #6 on CC#0.
  • FIG. 6 illustrates a schematic diagram 600 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the different numerologies or SCSs (for example, 60KHz for CC #0 and 30 KHz for CC #1) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 610 with a reference numerology (SCS of 30KHz) .
  • the target slots are determined based on the reference numerology for the RRC configuration, i.e., 30KHz.
  • the HARQ transmission is on slot #1 based on the reference numerology (SCS of 30KHz) .
  • SCS reference numerology
  • the terminal device 110 may determine the cell CC#0 as the target cell for all the repetitions.
  • slot #1 based on the reference numerology (SCS of 30KHz) corresponds to slot #2 based on SCS of 60KHz on CC #0, and the number of repetitions equal to 4, the 4 earliest available slots on CC #0 (i.e., slot #2, slot #4, slot #6 and slot #8 on CC#0) from slot #2 may be determined as the set of target slots based on the reference numerology (SCS of 30KHz) .
  • the first repetition 621, the second repetition 622, the third repetition 623 and the fourth repetition 624 are to be transmitted respectively in slot #2, slot #4, slot #6 and slot #8 on CC#0.
  • FIGs. 4 to 6 are merely for illustration, and are not intended for limitation of the present disclosure. According to any of these solutions, simple implementation for PUCCH repetition may be carried out, and less specification effort may be required.
  • the inter-PUCCH repetition carrier switching is also not supported, and all the PUCCH repetitions of a HARQ transmission are transmitted on one PUCCH cell.
  • the set of target cells may comprise one target cell (i.e., one PUCCH cell) .
  • the terminal device 110 may only transmit the first M consecutive repetitions on the initial target cell.
  • M ⁇ N_rep, where N_rep denotes the configured or indicated number of repetitions (i.e., the first number) .
  • the terminal device 110 may determine a second number of consecutive available slots on the target cell. If the second number is smaller than the first number, the terminal device 110 may determine the second number of consecutive available slots as the set of target slots. In this way, the terminal device 110 may transmit the second number of repetitions in the set of target slots while cancelling other repetitions than the second number of repetitions in the repetitions.
  • FIG. 7 illustrates a schematic diagram 700 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the same numerology (for example, SCS of 30KHz) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 710 with a reference numerology or SCS of 30KHz.
  • the HARQ transmission is on slot #1 based on the reference numerology.
  • the terminal device 110 may determine the cell CC#0 as the target cell for all the repetitions. It can be seen from FIG.
  • slot #1 and slot #2 on CC#0 may be determined as the set of target slots.
  • the first repetition 721 and the second repetition 722 are transmitted respectively in slot #1 and slot #2 on CC#0, while the third and fourth repetitions are cancelled.
  • FIG. 7 is merely for illustration, and is not intended for limitation of the present disclosure. According to this solution, simple implementation for PUCCH repetition may be carried out, and less specification effort may be required.
  • the inter-PUCCH repetition carrier switching is supported, and all the PUCCH repetitions of a HARQ transmission may be transmitted on one or more PUCCH cells.
  • the set of target cells may comprise one or more target cells.
  • the terminal device 110 may determine the target cell and slot or sub-slot for i-th repetition based on slot or sub-slot n+K1+ (i-1) with a reference numerology ⁇ _ref and the RRC configured PUCCH cell timing pattern.
  • the terminal device 110 may receive DCI indicating a first slot for the HARQ transmission, determine the first number of consecutive slots starting from the first slot based on a reference numerology of the RRC configuration, and determine the set of target cells by determining, based on the RRC configured PUCCH cell timing pattern, a target cell for one of the repetitions within a slot in the first number of consecutive slots. That is, one target cell is determined from the RRC configuration for each slot in the first number of consecutive slots, and then the set of target cells may be determined.
  • the terminal device 110 may determine the first or last available slot from the multiple slots as a target slot in the set of target slots. In some embodiments, if there is only one slot on the target cell, the terminal device 110 may determine the one slot as a target slot in the set of target slots.
  • FIG. 8 illustrates a schematic diagram 800 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the same numerology (for example, SCS of 30KHz) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 810 with a reference numerology or SCS of 30KHz.
  • An example of a slot based PUCCH repetition is shown by 820.
  • the slot based PUCCH repetition means that the granularity of a HARQ feedback for data transmissions is a slot and only a PUCCH repetition can be transmitted within a slot.
  • the HARQ transmission is on slot #1 based on the reference numerology.
  • the 4 consecutive slots i.e., slot #1, slot #2, slot #3 and slot #4 based on SCS of 30KHz
  • the terminal device 110 may determine that cells CC #0, CC#0, CC#1 and CC#1 are associated with the 4 consecutive slots.
  • the cells CC #0 and CC#1 may be determined as the set of target cells, and respective slots on the cells (i.e., slot #1 on CC #0, slot #2 on CC #0, slot #3 on CC #1 and slot #4 on CC #1) may be determined as target slots in the set of target slots.
  • the first repetition 822, the second repetition 823, the third repetition 824 and the fourth repetition 825 are to be transmitted respectively in slot #1 on CC #0, slot #2 on CC #0, slot #3 on CC #1 and slot #4 on CC #1.
  • the sub-slot based PUCCH repetition means that the granularity of a HARQ feedback for data transmissions is a sub-slot and only a PUCCH repetition can be transmitted within a sub-slot.
  • a sub-slot may comprise seven symbols or two symbols. Then a slot may comprise two sub-slots or seven sub-sots.
  • the HARQ transmission is on sub-slot #3.
  • 4 consecutive sub-slots i.e., sub-slot #3 on CC #0, sub-slot #4 on CC #0, sub-slot #5 on CC #1 and sub-slot #6 on CC #1
  • the terminal device 110 may determine that cells CC #0, CC#0, CC#1 and CC#1 are associated with the 4 consecutive sub-slots.
  • the cells CC #0 and CC#1 may be determined as the set of target cells, and respective sub-slots on the cells (i.e., sub-slot #3 on CC #0, sub-slot #4 on CC #0, sub-slot #5 on CC #1 and sub-slot #6 on CC #1) may be determined as target slots in the set of target slots.
  • the first repetition 832, the second repetition 833, the third repetition 834 and the fourth repetition 835 are to be transmitted respectively in sub-slot #3 on CC #0, sub-slot #4 on CC #0, sub-slot #5 on CC #1 and sub-slot #6 on CC #1.
  • FIG. 9 illustrates a schematic diagram 900 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the different numerologies (for example, 60KHz for CC #0 and 30 KHz for CC #1) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 910 with a reference numerology or SCS of 30KHz.
  • the HARQ transmission is on slot #1 based on the reference numerology.
  • the 4 consecutive slots i.e., slot #1, slot #2, slot #3 and slot #4 based on SCS of 30KHz
  • the terminal device 110 may determine that cells CC #0, CC#1, CC#0 and CC#0 are associated with the 4 consecutive slots.
  • the cells CC #0 and CC#1 may be determined as the set of target cells.
  • slots #2 and #3 on CC #0 correspond to slot #1 on CC #1, and the first slot #2 is determined as a target slot.
  • the last slot #3 may be also determined as a target slot in some embodiments.
  • slot #2 on CC #1 and slots #6 and #8 are also determined as target slots. In this way, the set of target slots may be determined.
  • the first repetition 922, the second repetition 923, the third repetition 924 and the fourth repetition 925 are to be transmitted respectively in slot #2 on CC #0, slot #2 on CC #1, slot #6 on CC #0 and slot #8 on CC #0.
  • FIGs. 8 to 9 are merely for illustration, and are not intended for limitation of the present disclosure.
  • N_rep consecutive slots/sub-slots based on the reference numerology/SCS of the PUCCH cells, then the target cell for each slot/sub-slot of the determined N_rep consecutive slots/sub-slots is determined based on the configured timing pattern.
  • the first/last available slot/sub-slot of the target cell is the target slot/sub-slot used for PUCCH repetition transmission.
  • the latency for communication may be minimized.
  • the inter-PUCCH repetition carrier switching is also supported, and all the PUCCH repetitions of a HARQ transmission may be transmitted on one or more PUCCH cells.
  • the set of target cells may comprise one or more target cells.
  • the terminal device 110 may firstly determine a first cell and a first slot on the first cell for a first repetition in the repetitions. In some embodiments, the terminal device 110 may receive a DCI indicating the first slot for the HARQ transmission, and determine, based on the RRC configuration, the first slot and the first cell associated with the first slot for the first repetition. Of course, any other suitable ways are also feasible for the determination of the first cell and the first slot.
  • the terminal device 110 may determine a second slot that follows the first slot for a second repetition in the repetitions, and determine, based on the RRC configuration, a second cell associated with the second slot for the second repetition. In this way, the set of target cells may be determined. In some embodiments, if multiple slots on a target cell in the set of target cells correspond to one slot based on the reference numerology, the terminal device 110 may determine all the available slots in the multiple slots as target slots in the set of target slots.
  • FIG. 10 illustrates a schematic diagram 1000 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the different numerologies (for example, 60KHz for CC #0 and 30 KHz for CC #1) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 1010 with a reference numerology or SCS of 30KHz.
  • the HARQ transmission is on slot #1 based on K1 with the reference numerology.
  • the terminal device 110 may determine that CC #0 is associated with slot #1.
  • the terminal device 110 may use slot #2 on CC #0 for the first repetition 1022 and slot #3 on CC #0 for the second repetition 1023.
  • the terminal device 110 may determine another available slot on a cell after the slot #3 on CC #0 based on the RRC configured pattern, it can be seen from FIG. 10 that slot #2 on CC #1 is available. As shown in FIG. 10, the terminal device 110 may find slot #2 on CC #1 and use slot #2 on CC #1 for the third repetition 1024.
  • the terminal device 110 may determine another available slot on a cell after the slot #2 on CC #1 based on the RRC configured pattern, it can be seen from FIG. 10 that slot #6 on CC #0 is available. As shown in FIG. 10, the terminal device 110 may find slot #6 on CC #0 and use slot #6 on CC #0 for the fourth repetition 1025.
  • FIG. 11 illustrates a schematic diagram 1100 illustrating another example implementation of PUCCH repetitions according to embodiments of the present disclosure.
  • candidate PUCCH cells have the different numerologies (for example, 60KHz for CC #0 and 30 KHz for CC #1) , the number of repetitions is 4, and the RRC configured PUCCH cell timing pattern for the terminal device 110 is as shown by 1110 with a reference numerology or SCS of 30KHz.
  • the terminal device 110 may determine that CC #0 is associated with slot #2. As slot #2 based on the reference numerology (SCS of 30KHz) corresponds to slot #4 on CC #0 (SCS of 60KHz) , the terminal device 110 may determine whether slot #4 on CC #0 is available. It can be seen from FIG. 11 that slot #4 on CC #0 is unavailable. Then, the terminal device 110 may determine, from other cells, an available slot corresponding to slot #4 on CC #0. As shown in FIG. 11, the terminal device 110 may find slot #2 on CC #1 and use slot #2 on CC #1 for the first repetition 1121.
  • the reference numerology i.e., SCS of 30KHz
  • the terminal device 110 may determine whether a slot (i.e., slot #3 on CC #1) following slot #2 on CC #1 is available. It can be seen from FIG. 11 that slot #3 on CC #1 is unavailable. In this case, the terminal device 110 may determine, from other cells, an available slot corresponding to slot #3 on CC #1. As shown in FIG. 11, the terminal device 110 may find slot #6 and slot #7 on CC #0, and use slot #6 on CC #0 for the second repetition 1122 and use slot #7 on CC #0 for the third repetition 1123.
  • the terminal device 110 may determine whether a slot (i.e., slot #8 on CC #0) following slot #7 on CC #0 is available. It can be seen from FIG. 11 that slot #8 on CC #0 is available. Thus, the terminal device 110 may use slot #8 on CC #0 for the fourth repetition 1124.
  • a slot i.e., slot #8 on CC #0
  • slot #8 on CC #0 is available.
  • the terminal device 110 may use slot #8 on CC #0 for the fourth repetition 1124.
  • FIGs. 10 to 11 are merely for illustration, and are not intended for limitation of the present disclosure.
  • the initial target cell is available for a PUCCH repetition transmission in a slot or sub-slot
  • the PUCCH repetition in the slot or sub-slot is also configured to be switched to another target cell based on PUCCH cell timing pattern.
  • the terminal device 110 may follow the RRC configuration to transmit the PUCCH repetition on the switched cell.
  • - UE determines the slot/sub-slot and target cell for the 1 st PUCCH repetition based on k1 with ⁇ _ref and the RRC configured PUCCH cell timing pattern.
  • the terminal device 110 may receive, from the network device 120, information indicating whether a switching of a cell within the repetitions is enabled (i.e., whether the inter-PUCCH repetition carrier switching is supported) .
  • information indicating whether a switching of a cell within the repetitions is enabled i.e., whether the inter-PUCCH repetition carrier switching is supported.
  • which option in Embodiments 1 to 4 is used for PUCCH repetitions may depend on a configuration from network side.
  • any other suitable forms of the information are also feasible.
  • the terminal device 110 may determine at least one target cell for the repetitions. For example, the terminal device 110 may determine the at least one target cell as described in any of Embodiments 3 and 4.
  • the terminal device 110 may determine one target cell for the repetitions. For example, the terminal device 110 may determine the one target cell as described in any of Embodiments 1 and 2.
  • the terminal device 110 upon determination of the set of target cells and the set of target slots, transmits the repetitions of the HARQ transmission in the set of target slots on the set of target cells.
  • Rel-16 all PUCCH repetitions for HARQ-ACK are transmitted on a cell. That is, the same PUCCH resource is used and each PUCCH repetition has the same start symbol, length and format.
  • a PUCCH carrier switching is enabled in Rel-17, different PUCCH resource configuration may be configured for different PUCCH cells. If the inter-PUCCH repetition carrier switching is applied, PUCCH repetitions of a HARQ-ACK transmission may be transmitted on different cells. In this case, how to determine the PUCCH resource for repetitions on different cells need to be considered.
  • the terminal device 110 may determine at least one resource with a start symbol, a length and a format for the repetitions, and transmit the repetitions on the at least one resource. This will be detailed in connection with Embodiments 6-9.
  • all PUCCH repetitions use the same PUCCH resource determined based on a target cell for one of the PUCCH repetitions if the determined target cells for the PUCCH repetitions have the same SCS.
  • the terminal device 110 may receive, from the network device 120, an indicator indicating a resource in a first resource set, the first resource set being configured for a target cell for a repetition (also referred to as a first repetition herein for convenience) in the repetitions, and determine the resource for each of the repetitions.
  • the indicator may be a PUCCH resource indicator (PRI) . It is to be understood that the indicator may adopt any other suitable forms. Further, it is to be understood that the above first repetition may be any repetition in the repetitions, and accordingly, the first resource set may be a resource set configured for any target cell in the determined set of target cells.
  • PRI PUCCH resource indicator
  • FIG. 12 illustrates a schematic diagram 1200 illustrating an example determination of resources for PUCCH repetitions according to embodiments of the present disclosure.
  • the first repetition 1212, the second repetition 1213, the third repetition 1214 and the fourth repetition 1215 are determined to be transmitted respectively in slot #1 on CC #0, slot #2 on CC #0, slot #3 on CC #1 and slot #4 on CC #1.
  • DCI 1210 may comprise a PRI indicating a PUCCH resource in a resource set configured for CC #0.
  • the PRI may indicate a PUCCH resource in a resource set configured for any target cell.
  • the terminal device 110 determines the PUCCH resource for repetitions in each target cell based on the same configured or indicated PUCCH resource ID from different PUCCH resource sets of corresponding PUCCH cells.
  • the terminal device 110 may receive, from the network device 120, an indicator indicating a first resource in a first resource set, the first resource set being configured for a target cell (also referred to as a first target cell herein for convenience) in the set of target cells.
  • the terminal device 110 may determine the first resource for one or more repetitions on the first target cell.
  • the terminal device 110 may determine, based on the indicator, a second resource from a second resource set, the second resource set being configured for another target cell (also referred to as a second target cell herein for convenience) in the set of target cells.
  • the second resource is used for one or more repetitions on the second target cell.
  • the indicator may be a PRI. It is to be understood that the indicator may adopt any other suitable forms. For illustration, an example will be described still with reference to FIG. 12.
  • DCI 1210 may comprise a PRI indicating a PUCCH resource in a resource set configured for CC #0.
  • PRI [001] .
  • the second PUCCH resource in the resource set is indicated as a resource for repetitions on CC #0 (i.e., the first repetition 1212 and the second repetition 1213) .
  • the terminal device 110 may determine the second PUCCH resource in another resource set configured for CC #1 as a resource for repetitions on CC #1 (i.e., the third repetition 1214 and the fourth repetition 1215) .
  • the field of DCI is extended to indicate x PRI values for PUCCH resource determination for PUCCH repetitions on x target cells, especially for dynamic granted (DG) HARQ feedback.
  • DG dynamic granted
  • the terminal device 110 may receive, from the network device 120, an indicator comprising a set of fields indicating respective resources in resource sets configured for the set of target cells, and determine, based on the set of fields, the respective resources for respective repetitions on the set of target cells.
  • the terminal device 110 may receive, from the network device 120, an indicator comprising a first field indicating a first resource in a first resource set configured for a first target cell in the set of target cells and second field indicating a second resource in a second resource set configured for a second target cell in the set of target cells. In this way, the terminal device 110 may determine the first resource for respective repetitions on the first target cell, and determine the second resource for respective repetitions on the second target cell.
  • the indicator may be a PRI. It is to be understood that the indicator may adopt any other suitable forms. For illustration, an example will be described still with reference to FIG. 12.
  • the terminal device may determine the PUCCH resource for repetitions in each target cell based on one PRI value and offset values configured by RRC.
  • the terminal device 110 may receive, from the network device 120, an indicator indicating a first resource in a first resource set, the first resource set being configured for a first target cell in the set of target cells, and determine the first resource for one or more repetitions on the first target cell. Based on the indicator and an offset value, the terminal device 110 may determine a second resource from a second resource set for one or more repetitions on a second target cell in the set of target cells, the second resource set being configured for the second target cell.
  • the offset value is in a set of offset values configured for the terminal device and the offset value corresponds to the second target cell.
  • the set of offset values may be RRC configured for the set of target cells.
  • the indicator may be a PRI. It is to be understood that the indicator may adopt any other suitable forms. For illustration, an example will be described still with reference to FIG. 12.
  • the terminal device 110 may determine the third PUCCH resource in another resource set configured for CC #1 as a resource for repetitions on CC #1 (i.e., the second repetition 1214 and the fourth repetition 1215) .
  • embodiments of the present disclosure provide methods of communication implemented at a terminal device and a network device. These methods will be described below with reference to FIGs. 13 to 14.
  • FIG. 13 illustrates an example method 1300 of communication implemented at a terminal device in accordance with some embodiments of the present disclosure.
  • the method 1300 may be performed at the terminal device 110 as shown in FIG. 1.
  • the method 1300 will be described with reference to FIG. 1. It is to be understood that the method 1300 may include additional blocks not shown and/or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard.
  • the terminal device 110 receives a data transmission from the network device 120.
  • the terminal device 110 determines, based on the number of repetitions configured for a HARQ transmission for the data transmission and a RRC configuration indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology, a set of target cells and a set of target slots on the set of target cells for the repetitions of the HARQ transmission.
  • the set of target slots may be a set of sub-slots.
  • the terminal device 110 transmits the repetitions to the network device 120 in the set of target slots on the set of target cells.
  • the terminal device 110 may determine the target cell by receiving a DCI indicating a first slot for the HARQ transmission; determining, from the RRC configuration, a first cell associated with the first slot; and determining the first cell as the target cell for the repetitions.
  • the terminal device 110 may determine the set of target slots by determining the first number of the earliest available slots on the target cell starting from the first slot based on one of the following: a numerology of the target cell, and the reference numerology for the RRC configuration.
  • the terminal device 110 may determine a second number of consecutive available slots on the target cell; and in accordance with a determination that the second number is smaller than the first number, determine the second number of consecutive available slots as the set of target slots. In these embodiments, the terminal device 110 may transmit the repetitions by transmitting the second number of repetitions in the set of target slots; and cancelling other repetitions than the second number of repetitions in the repetitions.
  • the terminal device 110 may determine the first number of consecutive available slots from the second number of consecutive available slots as the set of target slots. In these embodiments, the terminal device 110 may transmit the first number of repetitions in the set of target slots.
  • the terminal device 110 may determine the set of target cells by: receiving DCI indicating a first slot for the HARQ transmission; determining, based on the reference numerology of the RRC configuration and the number of repetitions, the first number of consecutive slots starting from the first slot; and determining the set of target cells by determining, based on the RRC configuration, a target cell for one of the repetitions within a slot in the first number of consecutive slots.
  • the terminal device 110 may determine the first or last available slot from the multiple slots as a target slot in the set of target slots. In this way, the set of target slots may be determined.
  • the terminal device 110 may determine the set of target cells by: determining a first cell and a first slot on the first cell for a first repetition in the repetitions; determining a second slot that follows the first slot for a second repetition in the repetitions; and determining, based on the RRC configuration, a second cell associated with the second slot for the second repetition.
  • the terminal device 110 may determine the first cell and the first slot by: receiving DCI indicating the first slot for the HARQ transmission; and determining, based on the RRC configuration, the first slot and the first cell associated with the first slot for the first repetition.
  • the terminal device may determine the set of target slots by: in accordance with a determination that multiple slots on a target cell in the set of target cells correspond to one slot based on the reference numerology, determining all the available slots in the multiple slots as target slots in the set of target slots.
  • the terminal device 110 may transmit the repetitions by: determining at least one resource with a start symbol, a length and a format for the repetitions; and transmitting the repetitions on the at least one resource.
  • the terminal device 110 may determine the at least one resource by: receiving, from the network device 120, an indicator indicating a resource in a first resource set, the first resource set being configured for a target cell for a first repetition in the repetitions; and determining the resource for each of the repetitions.
  • the terminal device 110 may determine the at least one resource by: receiving, from the network device, an indicator indicating a first resource in a first resource set, the first resource set being configured for a first target cell in the set of target cells; determining the first resource for one or more repetitions on the first target cell; and determining, based on the indicator, a second resource from a second resource set for one or more repetitions on a second target cell in the set of target cells, the second resource set being configured for the second target cell.
  • the terminal device 110 may determine the at least one resource by: receiving, from the network device, an indicator comprising a set of fields, the set of fields indicating respective resources in resource sets configured for the set of target cells; and determining, based on the set of fields, the respective resources for respective repetitions on the set of target cells.
  • the terminal device 110 may determine the at least one resource by: receiving, from the network device, an indicator indicating a first resource in a first resource set, the first resource set being configured for a first target cell in the set of target cells; determining the first resource for one or more repetitions on the first target cell; and determining, based on the indicator and an offset value, a second resource from a second resource set for one or more repetitions on a second target cell in the set of target cells, the second resource set being configured for the second target cell, the offset value being in a set of offset values configured for the terminal device and corresponding to the second target cell.
  • the terminal device 110 may further receive, from the network device 120, information indicating whether a switching of a cell within the repetitions is enabled. In accordance with a determination that the switching is enabled, the terminal device 110 may determine at least one target cell for the repetitions. In accordance with a determination that the switching is disabled, the terminal device 110 may determine a target cell for the repetitions.
  • FIG. 14 illustrates an example method 1400 of communication implemented at a network device in accordance with some embodiments of the present disclosure.
  • the method 1400 may be performed at the network device 120 as shown in FIG. 1.
  • the method 1400 will be described with reference to FIG. 1. It is to be understood that the method 1400 may include additional blocks not shown and/or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard.
  • the network device 120 transmits a data transmission to the terminal device 110.
  • the network device 120 determines, based on the number of repetitions configured for a HARQ transmission for the data transmission and a RR) configuration indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology, a set of target cells and a set of target slots on the set of target cells for the repetitions of the HARQ transmission.
  • the network device 120 receives, from the terminal device 110, the repetitions of the HARQ transmission in the set of target slots on the set of target cells.
  • the set of target slots may be a set of sub-slots.
  • the network device 120 may determine the target cell by: determining, from the RRC configuration, a first cell associated with a first slot for the HARQ transmission indicated to the terminal device; and determining the first cell as the target cell for the repetitions.
  • the network device 120 may determine the set of target slots by: determining the first number of the earliest available slots on the target cell starting from the first slot based on one of the following: a numerology of the target cell, and the reference numerology for the RRC configuration.
  • the network device 120 may determine the set of target slots by: determining a second number of consecutive available slots on the target cell; and in accordance with a determination that the second number is smaller than the first number, determining the second number of consecutive available slots as the set of target slots. In these embodiments, the network device 120 may receive the repetitions by receiving the second number of repetitions in the set of target slots.
  • the network device 120 may determine the first number of consecutive available slots from the second number of consecutive available slots as the set of target slots. In these embodiments, the network device 120 may receive the first number of repetitions in the set of target slots.
  • the network device 120 may determine, based on the reference numerology of the RRC configuration and the number of repetitions, the first number of consecutive slots starting from a first slot for the HARQ transmission indicated to the terminal device; and determine the set of target cells by determining, based on the RRC configuration, a target cell for one of the repetitions within a slot in the first number of consecutive slots.
  • the network device 120 may determine the set of target slots by: in accordance with a determination that multiple slots on the target cell correspond to one slot based on the reference numerology, determining the first or last available slot from the multiple slots as a target slot in the set of target slots.
  • the network device 120 may determine the set of target cells by determining a first cell and a first slot on the first cell for a first repetition in the repetitions; determining a second slot that follows the first slot for a second repetition in the repetitions; and determining, based on the RRC configuration, a second cell associated with the second slot for the second repetition.
  • the network device 120 may determine the set of target slots by: in accordance with a determination that multiple slots on a target cell in the set of target cells correspond to one slot based on the reference numerology, determining all the available slots in the multiple slots as target slots in the set of target slots.
  • the network device 120 may further determine at least one resource with a start symbol, a length and a format for the repetitions, and indicate the at least one resource to the terminal device 110. In some embodiments, the network device 120 may indicate the at least one resource by transmitting an indicator indicating a resource in a first resource set, the first resource set being configured for a target cell for a first repetition in the repetitions.
  • the network device 120 may indicate the at least one resource by transmitting an indicator indicating a first resource in a first resource set configured for a first target cell in the set of target cells, for determination of a second resource from a second resource set based on the indicator, the second resource set being configured for a second target cell in the set of target cells.
  • the network device 120 may indicate the at least one resource by transmitting an indicator comprising a set of fields, the set of fields indicating respective resources in resource sets configured for the set of target cells.
  • the network device 120 may indicate the at least one resource by transmitting an indicator indicating a first resource in a first resource set configured for a first target cell in the set of target cells, for determination of a second resource from a second resource set based on the first resource and an offset value, the second resource set being configured for a second target cell in the set of target cells, the offset value being in a set of offset values configured for the terminal device and corresponding to the second target cell.
  • the network device 120 may further transmit, to the terminal device 110, information indicating whether a switching of a cell within the repetitions is enabled.
  • FIG. 15 is a simplified block diagram of a device 1500 that is suitable for implementing embodiments of the present disclosure.
  • the device 1500 can be considered as a further example implementation of the terminal device 110 or the network device 120 as shown in FIG. 1. Accordingly, the device 1500 can be implemented at or as at least a part of the terminal device 110 or the network device 120.
  • the device 1500 includes a processor 1510, a memory 1520 coupled to the processor 1510, a suitable transmitter (TX) and receiver (RX) 1540 coupled to the processor 1510, and a communication interface coupled to the TX/RX 1540.
  • the memory 1510 stores at least a part of a program 1530.
  • the TX/RX 1540 is for bidirectional communications.
  • the TX/RX 1540 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this application may have several ones.
  • the communication interface may represent any interface that is necessary for communication with other network elements, such as X2/Xn interface for bidirectional communications between eNBs/gNBs, S1/NG interface for communication between a Mobility Management Entity (MME) /Access and Mobility Management Function (AMF) /SGW/UPF and the eNB/gNB, Un interface for communication between the eNB/gNB and a relay node (RN) , or Uu interface for communication between the eNB/gNB and a terminal device.
  • MME Mobility Management Entity
  • AMF Access and Mobility Management Function
  • RN relay node
  • Uu interface for communication between the eNB/gNB and a terminal device.
  • the program 1530 is assumed to include program instructions that, when executed by the associated processor 1510, enable the device 1500 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to FIGs. 1 to 14.
  • the embodiments herein may be implemented by computer software executable by the processor 1510 of the device 1500, or by hardware, or by a combination of software and hardware.
  • the processor 1510 may be configured to implement various embodiments of the present disclosure.
  • a combination of the processor 1510 and memory 1520 may form processing means 1550 adapted to implement various embodiments of the present disclosure.
  • the memory 1520 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 1520 is shown in the device 1500, there may be several physically distinct memory modules in the device 1500.
  • the processor 1510 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 1500 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.
  • a terminal device comprises circuitry configured to: receive, at a terminal device, a data transmission from a network device; determine, based on the number of repetitions configured for a HARQ transmission for the data transmission and a RRC configuration indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology, a set of target cells and a set of target slots on the set of target cells for the repetitions of the HARQ transmission; and transmit, to the network device, the repetitions of the HARQ transmission in the set of target slots on the set of target cells.
  • the set of target slots is a set of sub-slots.
  • the circuitry may be configured to determine the target cell by: receiving DCI indicating a first slot for the HARQ transmission; determining, from the RRC configuration, a first cell associated with the first slot; and determining the first cell as the target cell for the repetitions.
  • the circuitry may be configured to determine the set of target slots by: determining the first number of the earliest available slots on the target cell starting from the first slot based on one of the following: a numerology of the target cell, and the reference numerology for the RRC configuration.
  • the circuitry may be configured to determine the set of target slots by: determining a second number of consecutive available slots on the target cell; and in accordance with a determination that the second number is smaller than the first number, determining the second number of consecutive available slots as the set of target slots.
  • the circuitry may be configured to transmit the repetitions by: transmitting the second number of repetitions in the set of target slots; and cancelling other repetitions than the second number of repetitions in the repetitions.
  • the circuitry may be further configured to determine the set of target slots by: in accordance with a determination that the second number is equal to or larger than the first number, determining the first number of consecutive available slots from the second number of consecutive available slots as the set of target slots.
  • the circuitry may be configured to transmit the repetitions by: transmitting the first number of repetitions in the set of target slots.
  • the circuitry may be configured to determine the set of target cells by: receiving DCI indicating a first slot for the HARQ transmission; determining, based on the reference numerology of the RRC configuration and the number of repetitions, the first number of consecutive slots starting from the first slot; and determining the set of target cells by determining, based on the RRC configuration, a target cell for one of the repetitions within a slot in the first number of consecutive slots.
  • the circuitry may be configured to determine the set of target slots by: in accordance with a determination that multiple slots on the target cell correspond to one slot based on the reference numerology, determining the first or last available slot from the multiple slots as a target slot in the set of target slots.
  • the circuitry may be configured to determine the set of target cells by: determining a first cell and a first slot on the first cell for a first repetition in the repetitions; determining a second slot that follows the first slot for a second repetition in the repetitions; and determining, based on the RRC configuration, a second cell associated with the second slot for the second repetition.
  • the circuitry may be configured to determine the first cell and the first slot by: receiving DCI indicating the first slot for the HARQ transmission; and determining, based on the RRC configuration, the first slot and the first cell associated with the first slot for the first repetition.
  • the circuitry may be configured to determine the set of target slots by: in accordance with a determination that multiple slots on a target cell in the set of target cells correspond to one slot based on the reference numerology, determining all the available slots in the multiple slots as target slots in the set of target slots.
  • the circuitry may be configured to transmit the repetitions by:determining at least one resource with a start symbol, a length and a format for the repetitions; and transmitting the repetitions on the at least one resource.
  • the circuitry may be configured to transmit the repetitions by:receiving, from the network device, an indicator indicating a resource in a first resource set, the first resource set being configured for a target cell for a first repetition in the repetitions; and determining the resource for each of the repetitions.
  • the circuitry may be configured to transmit the repetitions by: receiving, from the network device, an indicator indicating a first resource in a first resource set, the first resource set being configured for a first target cell in the set of target cells; determining the first resource for one or more repetitions on the first target cell; and determining, based on the indicator, a second resource from a second resource set for one or more repetitions on a second target cell in the set of target cells, the second resource set being configured for the second target cell.
  • the circuitry may be configured to transmit the repetitions by: receiving, from the network device, an indicator comprising a set of fields, the set of fields indicating respective resources in resource sets configured for the set of target cells; and determining, based on the set of fields, the respective resources for respective repetitions on the set of target cells.
  • the circuitry may be configured to transmit the repetitions by: receiving, from the network device, an indicator indicating a first resource in a first resource set, the first resource set being configured for a first target cell in the set of target cells; determining the first resource for one or more repetitions on the first target cell; and determining, based on the indicator and an offset value, a second resource from a second resource set for one or more repetitions on a second target cell in the set of target cells, the second resource set being configured for the second target cell, the offset value being in a set of offset values configured for the terminal device and corresponding to the second target cell.
  • the circuitry may be further configured to: receive, from the network device, information indicating whether a switching of a cell within the repetitions is enabled; in accordance with a determination that the switching is enabled, determining at least one target cell for the repetitions; and in accordance with a determination that the switching is disabled, determining a target cell for the repetitions.
  • a network device comprises circuitry configured to: transmitting, at a network device, a data transmission to a terminal device; determining, based on the number of repetitions configured for a HARQ transmission for the data transmission and a RRC configuration indicating that cells for HARQ transmissions on different slots are selected from a set of cells with a reference numerology, a set of target cells and a set of target slots on the set of target cells for the repetitions of the HARQ transmission; and receiving, from the terminal device, the repetitions of the HARQ transmission in the set of target slots on the set of target cells.
  • the set of target slots is a set of sub-slots.
  • the circuitry may be configured to determine the target cell by: determining, from the RRC configuration, a first cell associated with a first slot for the HARQ transmission indicated to the terminal device; and determining the first cell as the target cell for the repetitions.
  • the circuitry may be configured to determine the set of target slots by: determining the first number of the earliest available slots on the target cell starting from the first slot based on one of the following: a numerology of the target cell, and the reference numerology for the RRC configuration.
  • the circuitry may be configured to determine the set of target slots by: determining a second number of consecutive available slots on the target cell; and in accordance with a determination that the second number is smaller than the first number, determining the second number of consecutive available slots as the set of target slots.
  • the circuitry may be configured to receive the repetitions by receiving the second number of repetitions in the set of target slots.
  • the circuitry may be further configured to determine the set of target slots by: in accordance with a determination that the second number is equal to or larger than the first number, determining the first number of consecutive available slots from the second number of consecutive available slots as the set of target slots. In these embodiments, the circuitry may be configured to receive the repetitions by receiving the first number of repetitions in the set of target slots.
  • the circuitry may be configured to determine the set of target cells by: determining, based on the reference numerology of the RRC configuration and the number of repetitions, the first number of consecutive slots starting from a first slot for the HARQ transmission indicated to the terminal device; and determining the set of target cells by determining, based on the RRC configuration, a target cell for one of the repetitions within a slot in the first number of consecutive slots.
  • the circuitry may be configured to determine the set of target slots by: in accordance with a determination that multiple slots on the target cell correspond to one slot based on the reference numerology, determining the first or last available slot from the multiple slots as a target slot in the set of target slots.
  • the circuitry may be configured to determine the set of target cells by: determining a first cell and a first slot on the first cell for a first repetition in the repetitions; determining a second slot that follows the first slot for a second repetition in the repetitions; and determining, based on the RRC configuration, a second cell associated with the second slot for the second repetition.
  • the circuitry may be configured to determine the set of target slots by: in accordance with a determination that multiple slots on a target cell in the set of target cells correspond to one slot based on the reference numerology, determining all the available slots in the multiple slots as target slots in the set of target slots.
  • the circuitry may be further configured to: determine at least one resource with a start symbol, a length and a format for the repetitions; and indicate the at least one resource to the terminal device.
  • the circuitry may be configured to indicate the at least one resource by transmitting an indicator indicating a resource in a first resource set, the first resource set being configured for a target cell for a first repetition in the repetitions.
  • the circuitry may be configured to indicate the at least one resource by transmitting an indicator indicating a first resource in a first resource set configured for a first target cell in the set of target cells, for determination of a second resource from a second resource set based on the indicator, the second resource set being configured for a second target cell in the set of target cells.
  • the circuitry may be configured to indicate the at least one resource by transmitting an indicator comprising a set of fields, the set of fields indicating respective resources in resource sets configured for the set of target cells.
  • the circuitry may be configured to indicate the at least one resource by transmitting an indicator indicating a first resource in a first resource set configured for a first target cell in the set of target cells, for determination of a second resource from a second resource set based on the first resource and an offset value, the second resource set being configured for a second target cell in the set of target cells, the offset value being in a set of offset values configured for the terminal device and corresponding to the second target cell.
  • the circuitry may be further configured to transmit, to the terminal device, information indicating whether a switching of a cell within the repetitions is enabled.
  • 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.
  • 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 to 14.
  • 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.

Landscapes

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

Abstract

Des modes de réalisation de la présente divulgation concernent des procédés, des dispositifs et des supports lisibles par ordinateur destinés à la communication. Un dispositif terminal reçoit une transmission de données en provenance d'un dispositif de réseau et détermine, en se basant sur le nombre de répétitions configurées pour une transmission HARQ pour la transmission de données et une configuration RRC indiquant que des cellules pour des transmissions HARQ sur différents intervalles sont sélectionnées parmi un ensemble de cellules ayant une numérologie de référence, un ensemble de cellules cibles et un ensemble d'intervalles cibles sur l'ensemble de cellules cibles pour les répétitions de la transmission HARQ. Ensuite, le dispositif terminal transmet, au dispositif de réseau, les répétitions de la transmission HARQ dans l'ensemble d'intervalles cibles sur l'ensemble de cellules cibles. De cette manière, des répétitions pour une transmission HARQ peuvent être mises en œuvre en tenant compte d'une commutation de porteuse PUCCH basée sur une configuration semi-statique.
PCT/CN2021/104282 2021-07-02 2021-07-02 Procédé, dispositif et support de stockage informatique de communication WO2023272723A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/104282 WO2023272723A1 (fr) 2021-07-02 2021-07-02 Procédé, dispositif et support de stockage informatique de communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/104282 WO2023272723A1 (fr) 2021-07-02 2021-07-02 Procédé, dispositif et support de stockage informatique de communication

Publications (1)

Publication Number Publication Date
WO2023272723A1 true WO2023272723A1 (fr) 2023-01-05

Family

ID=84693010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/104282 WO2023272723A1 (fr) 2021-07-02 2021-07-02 Procédé, dispositif et support de stockage informatique de communication

Country Status (1)

Country Link
WO (1) WO2023272723A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110677222A (zh) * 2018-07-03 2020-01-10 电信科学技术研究院有限公司 一种pdsch重复传输的harq反馈方法及装置
CN111093276A (zh) * 2019-11-08 2020-05-01 中兴通讯股份有限公司 一种数据处理方法、通信节点及计算机可读存储介质
US20200366426A1 (en) * 2018-02-13 2020-11-19 Zte Corporation Reliable information transmission method and apparatus
WO2021087856A1 (fr) * 2019-11-07 2021-05-14 Zte Corporation Système et procédé pour des indicateurs de modes de répétition de transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200366426A1 (en) * 2018-02-13 2020-11-19 Zte Corporation Reliable information transmission method and apparatus
CN110677222A (zh) * 2018-07-03 2020-01-10 电信科学技术研究院有限公司 一种pdsch重复传输的harq反馈方法及装置
WO2021087856A1 (fr) * 2019-11-07 2021-05-14 Zte Corporation Système et procédé pour des indicateurs de modes de répétition de transmission
CN111093276A (zh) * 2019-11-08 2020-05-01 中兴通讯股份有限公司 一种数据处理方法、通信节点及计算机可读存储介质

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
LG ELECTRONICS: "Remaining issues on DL/UL scheduling and HARQ", 3GPP DRAFT; R1-1802214 ISSUES ON HARQ PROCESS_FINAL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Athens, Greece; 20180226 - 20180302, 16 February 2018 (2018-02-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051397219 *
ZTE CORPORATION: "Discussion on enhanced PUSCH repetition type A", 3GPP DRAFT; R1-2104330, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210510 - 20210527, 12 May 2021 (2021-05-12), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052010765 *
ZTE, SANECHIPS: "DL/UL scheduling and HARQ timing management", 3GPP DRAFT; R1-1720368 SCHEDULING AND HARQ TIMING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, USA; 20171127 - 20171201, 18 November 2017 (2017-11-18), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051369940 *

Similar Documents

Publication Publication Date Title
WO2021007862A1 (fr) Rapport de rétroaction harq dans une transmission de liaison latérale
WO2022021426A1 (fr) Procédé, dispositif et support de stockage informatique de communication
US10616051B2 (en) Methods and apparatuses for reference signal configuration
WO2021174458A1 (fr) Procédé, dispositif et support de stockage informatique destinés à la communication
WO2021189320A1 (fr) Procédé, dispositif et support de stockage informatique de communication
AU2019451382B2 (en) Report of HARQ feedback in sidelink transmission
WO2020073283A1 (fr) Procédé, dispositif et support lisible par ordinateur destinés à une transmission d'informations de commande de liaison montante
WO2022217606A1 (fr) Procédés de communication, dispositif terminal, dispositif réseau et supports lisibles par ordinateur
WO2022141647A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2023272723A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2021127840A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2020220229A1 (fr) Rétroaction harq dans une transmission de liaison latérale
WO2022151065A1 (fr) Procédé, dispositif et support d'enregistrement informatique de communication
WO2022095037A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2022205451A1 (fr) Procédé, dispositif et support lisible par ordinateur pour la communication
US20240146468A1 (en) Method, device and computer storage medium of communication
WO2022261942A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2022193252A1 (fr) Procédés de communication, dispositif terminal, dispositif de réseau et support lisible par ordinateur
WO2023279346A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2023000147A1 (fr) Procédé, dispositif et support de stockage informatique de communication
WO2022205066A1 (fr) Procédés, dispositifs et supports de stockage informatiques de communication
WO2022087850A1 (fr) Procédé, dispositif et support lisible par ordinateur destinés à la communication
WO2023056629A1 (fr) Procédé, dispositif et support de stockage informatique de communication
US20230079128A1 (en) Methods, devices and computer storage media of communication
WO2023272741A1 (fr) Procédé, dispositif et support de stockage informatique de communication

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21947670

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE