WO2024073940A1 - Désactivation de rétroaction de réseau non terrestre par l'intermédiaire d'informations de contrôle de liaison descendante - Google Patents

Désactivation de rétroaction de réseau non terrestre par l'intermédiaire d'informations de contrôle de liaison descendante Download PDF

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WO2024073940A1
WO2024073940A1 PCT/CN2022/138055 CN2022138055W WO2024073940A1 WO 2024073940 A1 WO2024073940 A1 WO 2024073940A1 CN 2022138055 W CN2022138055 W CN 2022138055W WO 2024073940 A1 WO2024073940 A1 WO 2024073940A1
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WIPO (PCT)
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field
harq
harq feedback
mcs
transport blocks
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PCT/CN2022/138055
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English (en)
Inventor
Zhi YAN
Hongmei Liu
Yuantao Zhang
Ruixiang MA
Haiming Wang
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Lenovo (Beijing) Ltd.
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Priority to PCT/CN2022/138055 priority Critical patent/WO2024073940A1/fr
Publication of WO2024073940A1 publication Critical patent/WO2024073940A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Definitions

  • the subject matter disclosed herein generally relates to wireless communications, and more particularly relates to methods and apparatuses for NTN (Non-Terrestrial Network) feedback disabling via downlink control information.
  • NTN Non-Terrestrial Network
  • New Radio NR
  • VLSI Very Large Scale Integration
  • RAM Random Access Memory
  • ROM Read-Only Memory
  • EPROM or Flash Memory Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • LAN Local Area Network
  • WAN Wide Area Network
  • UE User Equipment
  • eNB Evolved Node B
  • gNB Next Generation Node B
  • Uplink UL
  • Downlink DL
  • CPU Central Processing Unit
  • GPU Graphics Processing Unit
  • FPGA Field Programmable Gate Array
  • OFDM Orthogonal Frequency Division Multiplexing
  • RRC Radio Resource Control
  • RX User Entity/Equipment
  • TX Receiver
  • NTN Non-Terrestrial Network
  • the data signals are transmitted in unit of transport block (TB) .
  • One TB is transmitted in one or more subframes with repetition.
  • a feedback (ACK or NACK) of the data signals is transmitted in an uplink feedback channel (e.g., PUCCH or PUSCH) to indicate whether the corresponding data signals are correctly received (i.e., ACK) or not (i.e., NACK) at the UE side.
  • Each downlink data transmission process is associated with a process number.
  • the feedback of the data signal is associated with the process number so that the base unit (e.g., eNB) knows with which TB (or with which subframe) the feedback is associated.
  • the process number may also be referred to as HARQ process number.
  • enabling and disabling of HARQ feedback for downlink transmission can be at least configurable per HARQ process via UE specific RRC signalling.
  • UE can be configured by RRC parameter to enable or disable the HARQ feedback per HARQ process (i.e., per HARQ process number) via bitmap manner.
  • bitmap with 8 bits can indicate HARQ feedback enabling or disabling of the 8 HARQ processes. For example, 0 indicates HARQ feedback disabling and 1 indicates HARQ feedback enabling.
  • HARQ feedback disabling When HARQ feedback disabling is configured for an HARQ process number (or for an HARQ process) , no explicit UL feedback for DL transmission acknowledges a successful transmission of a TB associated with an HARQ process having the HARQ process number. It means that the HARQ process number can be reused for a new DL transmission without waiting for the HARQ feedback. This can avoid HARQ stalling and consequently avoid throughput degradation.
  • retransmission at RLC layer i.e., RLC ARQ
  • ARQ re-transmissions in RLC layer can have high latency, which might be acceptable to IoT services (e.g., eMTC and NBIoT) since IoT services are generally delay tolerant.
  • NR NTN for ensuring the efficiency and reliability of transmission carrying some critical signaling, e.g., RRC configuration, at least one HARQ process with feedback enabling should be kept.
  • RRC Radio Resource Control
  • This invention targets solutions for NTN feedback disabling via downlink control information.
  • a UE comprises a processor; and a transceiver coupled to the processor, wherein the processor is configured to cause the UE to: receive a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and receive the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • control message comprises a second field; the first field further indicates the MCS index or an MCS set; and the second field indicates the resource associated with the HARQ feedback, or a MCS sub-index within the MCS set, or any combination thereof.
  • control message further comprises a second field; and the first field further indicates the MCS index, or the HARQ process number and the NDI; and the second field indicates the resource associated with the HARQ feedback, the HARQ process number and the NDI or the MCS index.
  • the first field includes multiple sub-fields, at least one of the multiple sub-fields indicates whether the HARQ feedback is enabled or disabled; the at least one sub-field is based at least in part on a quantity of transport blocks of the set of transport blocks.
  • the resource associated with the HARQ feedback is based at least in part on the HARQ process number or a subframe number, or both.
  • the processor is further configured to receive a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the HARQ feedback enabled or disabled associated with the set of transport blocks indicated by the first field overrides the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the processor is further configured to receive a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the first field indicates whether HARQ feedback is enabled or disabled by indicating to override or to keep the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method comprises overriding an enabling or a disabling of the HARQ feedback, associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks, based on the RRC message; or maintain the enabling or the disabling of the HARQ feedback associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks.
  • a method at a UE comprises receiving a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and receiving the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • a network entity comprises a processor; and a transceiver coupled to the processor, wherein the processor is configured to cause the network entity to: transmit a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and transmit the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • a method at a network entity comprises transmitting a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and transmitting the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • Figure 1 illustrates NR NTN HARQ feedback disabling indication
  • Figure 2 illustrates the structure of the ‘Scheduling TBs for Unicast’ field
  • Figure 3 is a schematic flow chart diagram illustrating an embodiment of a method
  • Figure 4 is a schematic flow chart diagram illustrating another embodiment of a method.
  • Figure 5 is a schematic block diagram illustrating apparatuses according to one embodiment.
  • embodiments may be embodied as a system, apparatus, method, or program product. Accordingly, embodiments may take the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, resident software, micro-code, etc. ) or an embodiment combining software and hardware aspects that may generally all be referred to herein as a “circuit” , “module” or “system” . Furthermore, embodiments may take the form of a program product embodied in one or more computer readable storage devices storing machine-readable code, computer readable code, and/or program code, referred to hereafter as “code” .
  • code computer readable storage devices storing machine-readable code, computer readable code, and/or program code, referred to hereafter as “code” .
  • the storage devices may be tangible, non-transitory, and/or non-transmission.
  • the storage devices may not embody signals. In a certain embodiment, the storage devices only employ signals for accessing code.
  • modules may be implemented as a hardware circuit comprising custom very-large-scale integration (VLSI) circuits or gate arrays, off-the-shelf semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI very-large-scale integration
  • a module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.
  • Modules may also be implemented in code and/or software for execution by various types of processors.
  • An identified module of code may, for instance, include one or more physical or logical blocks of executable code which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but, may include disparate instructions stored in different locations which, when joined logically together, include the module and achieve the stated purpose for the module.
  • a module of code may contain a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices.
  • operational data may be identified and illustrated herein within modules and may be embodied in any suitable form and organized within any suitable type of data structure. This operational data may be collected as a single data set, or may be distributed over different locations including over different computer readable storage devices.
  • the software portions are stored on one or more computer readable storage devices.
  • the computer readable medium may be a computer readable storage medium.
  • the computer readable storage medium may be a storage device storing code.
  • the storage device may be, for example, but need not necessarily be, an electronic, magnetic, optical, electromagnetic, infrared, holographic, micromechanical, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • a storage device would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, random access memory (RAM) , read-only memory (ROM) , erasable programmable read-only memory (EPROM or Flash Memory) , portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • a computer-readable storage medium may be any tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • Code for carrying out operations for embodiments may include any number of lines and may be written in any combination of one or more programming languages including an object-oriented programming language such as Python, Ruby, Java, Smalltalk, C++, or the like, and conventional procedural programming languages, such as the "C" programming language, or the like, and/or machine languages such as assembly languages.
  • the code may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server.
  • the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN) , or the connection may be made to an external computer (for example, through the Internet using an Internet Service Provider) .
  • LAN local area network
  • WAN wide area network
  • Internet Service Provider an Internet Service Provider
  • the code may also be stored in a storage device that can direct a computer, other programmable data processing apparatus, or other devices, to function in a particular manner, such that the instructions stored in the storage device produce an article of manufacture including instructions which implement the function specified in the schematic flowchart diagrams and/or schematic block diagrams block or blocks.
  • the code may also be loaded onto a computer, other programmable data processing apparatus, or other devices, to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the code executed on the computer or other programmable apparatus provides processes for implementing the functions specified in the flowchart and/or block diagram block or blocks.
  • each block in the schematic flowchart diagrams and/or schematic block diagrams may represent a module, segment, or portion of code, which includes one or more executable instructions of the code for implementing the specified logical function (s) .
  • eMTC CE mode B supports 2 HARQ processes or 4 HARQ processes (if multiple TB scheduling is configured) . It means that, for eMTC, a control message (e.g., a control signal, DCI format 6-1B) can schedule a set of transport blocks, the set of transport blocks can be one transport block for single transport block transmission or up to four (4) transport blocks for multiple transport blocks transmission, where each transport block is associated with a different HARQ process (i.e., a HARQ process with a different HARQ process number) . Each HARQ process may be HARQ feedback enabling by default.
  • a control message e.g., a control signal, DCI format 6-1B
  • each transport block is associated with a different HARQ process (i.e., a HARQ process with a different HARQ process number) .
  • Each HARQ process may be HARQ feedback enabling by default.
  • control message e.g., DCI format 6-1B
  • HARQ hybrid automatic repeat request
  • the indication of whether HARQ feedback is enabled or disabled may apply to HARQ process associated with the single scheduled transport block or all HARQ process (es) associated with the set of transport blocks.
  • this disclosure proposes several embodiments to indicate the HARQ feedback enabling or disabling associated with the scheduled transport blocks without adding a field to the scheduling DCI (e.g., DCI format 6-1B) , nor adding any extra bit to the scheduling DCI.
  • the scheduling DCI e.g., DCI format 6-1B
  • the ‘MCS’ field of DCI format 6-1B has 4 bits, and indicates a MCS index.
  • the candidate MCS indices indicated by the ‘MCS’ field can be from 0 to 9 (i.e., from ‘0000’ to ‘1001’ ) . It means that there are six (6) unused states (e.g., from 10 to 15, i.e., from ‘1010’ to ‘1111’ ) for the ‘MCS’ field.
  • the ‘HARQ process number’ field indicates HARQ process number.
  • the ‘new data indicator’ field indicates new data indicator.
  • the ‘HARQ-ACK resource offset’ field indicates resource associated with the HARQ feedback (e.g., HARQ-ACK resource) for the set of transport blocks. If HARQ feedback disabling is indicated, it is unnecessary to indicate the HARQ-ACK resource for the set of transport blocks.
  • the ‘Scheduling TBs for Unicast’ field has 10 bits.
  • the ‘Scheduling TBs for Unicast’ field is only present for multiple TB scheduling.
  • the HARQ feedback enabling or disabling associated with the scheduled downlink transmission is indicated by a first field (e.g., joint field) having 6 bits.
  • the joint field can be a new field to replace some existing (i.e., legacy) fields of DCI format 6-1B.
  • legacy ‘MCS’ field having 4 bits
  • legacy ‘HARQ-ACK resource offset’ field having 2 bits
  • the joint field can be composed by some existing fields of DCI format 6-1B.
  • the joint field is composed by the legacy ‘MCS’ field (with 4 bits) and legacy ‘HARQ-ACK resource offset’ field (with 2 bits) .
  • the legacy ‘MCS’ field may function as the four most significant bits of the joint field while the legacy ‘HARQ-ACK resource offset’ field function as the two least significant bits of the joint field.
  • the joint field indicates the HARQ feedback enabling or disabling associated with the scheduled downlink transmission in addition to legacy indication (s) .
  • legacy indication s
  • the joint field replaces the legacy ‘MCS’ field (with 4 bits) and the legacy ‘HARQ-ACK resource offset’ field (with 2 bits) (or alternatively, the legacy ‘MCS’ field (with 4 bits) and the legacy ‘HARQ-ACK resource offset’ field (with 2 bits) compose the joint field)
  • the joint field indicates, in addition to the MCS index and the HARQ-ACK resource, the HARQ feedback enabling or disabling associated with the scheduled downlink transmission.
  • the legacy ‘HARQ-ACK resource offset’ field indicates the HARQ-ACK resource by 4 candidate values (e.g., ‘00’ , ‘01’ , ‘10’ and ‘11’ ) .
  • the legacy ‘MCS’ field (with 4 bits) indicates the MCS index from 0 to 9 (i.e., from ‘0000’ to ‘1001’ ) . Possible values 10 to 15 (i.e., from ‘1010’ to ‘1111’ ) of the ‘MCS’ field are unused states.
  • Table 2 illustrates an example of the joint field according to the first embodiment.
  • the HARQ feedback is indicated as enabling; the MCS index is from 0 to 9 (i.e., being equal to the joint field value) , and the HARQ-ACK resource is indicated as ‘00’ .
  • the HARQ feedback is indicated as enabling; the MCS index is from 0 to 9 (i.e., being equal to the joint field value minus 10) , and the HARQ-ACK resource is indicated as ‘01’ .
  • the HARQ feedback is indicated as enabling; the MCS index is from 0 to 9 (i.e., being equal to the joint field value minus 20) , and the HARQ-ACK resource is indicated as ‘10’ .
  • the HARQ feedback is indicated as enabling; the MCS index is from 0 to 9 (i.e., being equal to the joint field value minus 30) , and the HARQ-ACK resource is indicated as ‘11’ .
  • the HARQ feedback is indicated as disabling; the MCS index is from 0 to 9 (i.e., being equal to the joint field value minus 40) , and the HARQ-ACK resource value is reserved (indicated as “X” in Table 2) . It means that, when the HARQ feedback is disabled, it is unnecessary to indicate the HARQ-ACK resource.
  • UE receives a control message (e.g., DCI format 6-1B) , the control message includes a joint field indicating at least the HARQ feedback enabling or disabling associated with the scheduled downlink transmission, where the HARQ feedback enabling or disabling is based on the value of the joint field.
  • a control message e.g., DCI format 6-1B
  • the joint field indicates, in addition to the HARQ feedback enabling or disabling associated with the scheduled downlink transmission, at least one of other indications (e.g., MCS index, and HARQ-ACK resource) , while if the joint field values are from 0 to 39, HARQ feedback enabling is indicated; and if the joint field values are from 40 to 49, HARQ feedback disabling is indicated.
  • other indications e.g., MCS index, and HARQ-ACK resource
  • values 0 to 39 of the joint field indicate three indications (i.e., HARQ feedback enabling or disabling associated with the scheduled downlink transmission, MCS index, and HARQ-ACK resource) ; while values 40 to 49 of the joint field indicate two indications (i.e., HARQ feedback enabling or disabling associated with the scheduled downlink transmission, and MCS index) .
  • UE receives a control message (e.g., DCI format 6-1B) , the control message includes two (2) fields (e.g., a first field (e.g., a first joint field) and a second field (e.g., a second joint field) ) , where the first joint field indicates, in addition to the HARQ feedback enabling or disabling associated with the scheduled downlink transmission, MCS index or a MCS set index, and the second joint field indicates the HARQ-ACK resource or a MCS sub-index of the MCS set having the MCS set index.
  • a control message e.g., DCI format 6-1B
  • the control message includes two (2) fields (e.g., a first field (e.g., a first joint field) and a second field (e.g., a second joint field) )
  • the first joint field indicates, in addition to the HARQ feedback enabling or disabling associated with the scheduled downlink transmission, MCS index or a MCS set index
  • the first joint field e.g., by reusing legacy ‘MCS’ field
  • the first join field indicates HARQ feedback enabling of the HARQ process associated with the scheduled downlink transmission, and further indicates the MCS index.
  • the second joint field e.g., legacy ‘HARQ-ACK resource offset’ field
  • the first joint field indicates ‘1010 to ‘1100’ (i.e., from 10 to 12)
  • the first joint field indicates HARQ feedback disabling of the HARQ process associated with the scheduled downlink transmission and further indicates a MCS set index (e.g., MCS set 0, MCS set 1 and MCS set 2) (i.e., selects a MCS set) .
  • the second joint field e.g., by reusing legacy ‘HARQ-ACK resource offset’ field indicates a MCS sub-index within the selected MCS set (e.g., MCS sub-index 0, MCS sub-index 1, MCS sub-index 2, MCS sub-index 3) .
  • MCS set index 1
  • UE receives a control message (e.g., DCI format 6-1B) , the control message includes two (2) fields (e.g., a first field (e.g., a first joint field) and a second field (e.g., a second joint field) ) , where the first joint field indicates, in addition to the HARQ feedback enabling or disabling associated with the scheduled downlink transmission, the MCS index, or the HARQ process number and new data indicator, and the second joint field indicates the HARQ-ACK resource, the HARQ process number and the new data indicator, or the MCS index.
  • the third embodiment applies to eMTC CE Mode B with one TB scheduling.
  • the first joint field e.g., by reusing legacy ‘MCS’ field
  • the first joint field indicates ‘0000’ to ‘1001’ (i.e., from 0 to 9)
  • the first joint field indicates HARQ feedback enabling associated with the scheduled downlink transmission, and further indicates the MCS index.
  • the second joint field e.g., by reusing a combination of legacy ‘HARQ-ACK resource offset’ field, legacy ‘HARQ process number’ field and legacy ‘NDI’ field
  • the second joint field indicates the HARQ-ACK resource, the HARQ process number and the new data indicator.
  • the second joint field can be regarded as being composed by 3 sub-fields (e.g., a sub-field by reusing legacy ‘HARQ-ACK resource offset’ field with 2 bits, a sub-field by reusing legacy ‘HARQ process number’ field with 1 bit, and a sub-field by reusing legacy ‘NDI’ field with 1 bit) , where, the sub-field by reusing the legacy ‘HARQ-ACK resource offset’ field indicates the HARQ-ACK resource, the sub-field by reusing the legacy ‘HARQ process number’ field indicates the HARQ process number, and the sub-field by reusing the legacy ‘NDI’ field indicates the new data indicator.
  • 3 sub-fields e.g., a sub-field by reusing legacy ‘HARQ-ACK resource offset’ field with 2 bits, a sub-field by reusing legacy ‘HARQ process number’ field with 1 bit, and a sub-field by reusing legacy ‘NDI’ field with 1 bit
  • the first joint field indicates ‘1010 to ‘1101’ (i.e., from 10 to 13)
  • the first joint field indicates HARQ feedback disabling associated with the scheduled downlink transmission, and further indicates the HARQ process number and the new data indicator. It means that the four states ‘1010 to ‘1101’ are used to indicate the HARQ process number and the new data indicator. If HARQ feedback disabling is indicated, it is unnecessary to indicate the HARQ-ACK resource.
  • the second joint field (e.g., by reusing a combination of the legacy ‘HARQ-ACK resource offset’ field, the legacy ‘HARQ process number’ field and the legacy ‘NDI’ field) (with a total of 4 bits) indicates the MCS index, e.g., from 0 to 9.
  • the legacy ‘HARQ process number’ field functions as the most significant bit (MSB) of the second joint field
  • the legacy ‘NDI’ field functions as the second bit of the second joint field
  • the legacy ‘HARQ-ACK resource offset’ field functions as the two least significant bits (LSBs) of the second joint field.
  • a fourth embodiment relates to eMTC CE Mode B with multiple TB scheduling by DCI format 6-1B.
  • the ‘Scheduling TBs for Unicast’ field is present in DCI format 6-1B.
  • the ‘Scheduling TBs for Unicast’ field includes sub-fields of ‘MCS’ , ‘HARQ’ (i.e., ‘HARQ1’ , ‘HARQ2 Index’ and ‘HARQ3’ ) and ‘NDI’ (s) (i.e., ‘N1’ , N2’ , ‘N3’ and ‘N4’ ) .
  • Figure 2 illustrates the structure of the ‘Scheduling TBs for Unicast’ field. It can be seen from Figure 2 that the meaning of each of the ten (10) bits of the ‘Scheduling TBs for Unicast’ field is different for different numbers of the set of transport blocks (i.e., for different HARQs) .
  • bits 1, 2 and 3 are always ‘0’ ; bits 4, 5, 6 and 7 are ‘MCS’ sub-field indicating the MCS index (from 0 to 9, i.e., from ‘0000’ to ‘1001’ ) ; bits 8 and 9 ( ‘HARQ1’ ) indicate which one of the four HARQ processes is the one HARQ process; and bit 10 is the sub-field ‘NDI’ (i.e., ‘N1’ ) for the one HARQ process.
  • bits 1 For two scheduled TBs associated with two HARQ processes (indicated as ‘2 HARQs’ in Figure 2) , bit 1 is always ‘0’ ; bits 2, 3, 4 and 5 are ‘MCS’ sub-field ( ‘MCS+3’ in Figure 2) indicating the MCS index plus 3 (from 3 to 12, i.e., from ‘0011’ to ‘1100’ ) ; bits 6, 7 and 8 ( ‘HARQ2 Index’ ) indicate which two of the four HARQ processes are the two HARQ processes; and bits 9 and 10 are the sub-field ‘NDI’s (e.g., bit 9 is the sub-field ‘NDI’ , i.e., ‘N1’ , for a first HARQ process of the two HARQ processes; and bit 10 is the sub-field ‘NDI’ , i.e., ‘N2’ , for a second HARQ process of the two HARQ processes) .
  • bits 9 and 10 are the sub-field ‘NDI’s (e
  • bits 1, 2, 3, 4 and 5 are ‘MCS’ sub-field ( ‘MCS+15’ in Figure 2) indicating the MCS index plus 15 (from 15 to 24, i.e., from ‘01111’ to ‘11000’ ) ; bits 6 and 7 ( ‘HARQ3’ ) indicate which three of the four HARQ processes are the three HARQ processes; and bits 8, 9 and 10 are the sub-field ‘NDI’ (e.g., bit 8 is the sub-field ‘NDI’ , i.e., ‘N1’ , for a first HARQ process of the three HARQ processes; bit 9 is the sub-field ‘NDI’ , i.e., ‘N2’ , for a second HARQ process of the three HARQ processes; and bit 10 is the sub-field ‘NDI’ , i.e., ‘N3’ , for a third HARQ process
  • bits 1, 2, 3, 4, 5 and 6 are ‘MCS’ ( ‘MCS+52’ in Figure 2) sub-field indicating the MCS index plus 52 (from 52 to 61, i.e., from ‘110100’ to ‘111101’ ) ; bits 7, 8, 9 and 10 are the sub-field ‘NDI’ (e.g., bit 7 is the sub-field ‘NDI’ , i.e., ‘N1’ , for a first HARQ process of the four HARQ processes; bit 8 is the sub-field ‘NDI’ , i.e., ‘N2’ , for a second HARQ process of the four HARQ processes; bit 9 is the sub-field ‘NDI’ , i.e., ‘N3’ , for a third HARQ process of the four HARQ processes; and bit 10 is the sub-field ‘NDI’ , i.e., ‘NDI’ , ‘N1’ , for a first HARQ process of the four HARQ processes; bit
  • the structure of the sub-fields is determined by the number of scheduled TBs (from 1 to 4) .
  • ‘0001010’ and ‘0001011’ are two unused states between 1 HARQ and 2 HARQs. So, these two unused states can be used for indicating HARQ feedback disabling associated with the scheduled downlink transmission (i.e., associated with the one scheduled TB) .
  • Whether the combination of these unused states (2 states) and the legacy ‘HARQ-ACK resource offset’ field (with 2 bits) indicates one MCS index from the first 8 MCS indices or from the last 8 MCS indices may depend on HARQ process number or subframe number.
  • bits 1 to 7 of the ‘Scheduling TBs for Unicast’ field are from ‘0000000’ to ‘0001011’ .
  • one TB is scheduled. If the bits 1 to 7 are from ‘0000000’ to ‘0001001’ , HARQ feedback enabling is indicated and bits 4 to 7 further indicate the MCS index, and if the bits 1 to 7 are from ‘0001010’ to ‘0001011’ , HARQ feedback disabling is indicated while the MCS index is indicated by the combination of ‘0001010’ or ‘0001011’ (for bits 1 to 7) and the ‘HARQ-ACK resource offset’ field.
  • ‘HARQ Index2’ For two scheduled TBs, three bits (i.e., bits 6, 7 and 8) ( ‘HARQ Index2’ ) indicate which two of the four HARQ processes are associated with the two scheduled TBs. Since only 6 states of the three bits (e.g., from ‘000’ to ‘101’ ) are enough to indicate which two of the four HARQ processes are associated with the two scheduled TBs, there are two (2) unused states (e.g., ‘110’ and ‘111’ ) in the ‘HARQ2 Index’ sub-field. So, these two unused states of ‘HARQ2 Index’ sub-field can be used for indicating HARQ feedback disabling associated with the scheduled downlink transmission (i.e., associated with the two scheduled TBs) .
  • a combination of these unused states (2 states) of the ‘HARQ2 Index’ sub-field and the ‘HARQ-ACK resource offset’ field can indicate which two of the four HARQ processes are associated with the two scheduled TBs, along with the HARQ feedback disabling.
  • the two unused states and the two bits of the ‘HARQ-ACK resource offset’ field can provide 8 states that are enough to indicate 6 candidate values to indicate which two of the four HARQ processes are associated with the two scheduled TBs.
  • bits 1 to 5 of the ‘Scheduling TBs for Unicast’ field are from ‘00011’ to ‘01100’
  • bits 6 to 8 of the ‘Scheduling TBs for Unicast’ field are from ‘000’ to ‘101’
  • HARQ feedback enabling is indicated and the bits 6 to 8 further indicate which two of the four HARQ processes are associated with the two scheduled TBs
  • HARQ feedback disabling is indicated while which two of the four HARQ processes are associated with the two scheduled TBs is indicated by the combination of ‘110’ or ‘111’ (for bits 6 to 8) and the ‘HARQ-ACK resource offset’ field.
  • ‘01101’ and ‘01110’ are unused states between 2 HARQs and 3 HARQs, while ‘11001’ (for bits 1 to 5) is unused state between 3 HARQs and 4 HARQs. So, two of the three unused states (e.g., ‘01110’ and 11001’ ) can be used for indicating HARQ feedback disabling associated with the scheduled down transmission (i.e., associated with the three scheduled TBs) .
  • MCS index 2 states
  • bits 1 to 5 of the ‘Scheduling TBs for Unicast’ field are from ‘01110’ to ‘11001’
  • three TBs are scheduled. If the bits 1 to 5 are from ‘01111’ to ‘11000’ , HARQ feedback enabling is indicated and bits 1 to 5 further indicate the MCS index plus 15, and if the bits 1 to 5 are ‘01110’ or ‘11001’ , HARQ feedback disabling is indicated while the MCS index is indicated by the combination of ‘01110 or ‘11001’ (for bits 1 to 5) and the ‘HARQ-ACK resource offset’ field.
  • ‘111110 and ‘111111’ are two unused states after 4 HARQs. So, these two unused states can be used for indicating HARQ feedback disabling associated with the scheduled down transmission (i.e., associated with the four scheduled TBs) .
  • bits 1 to 6 of the ‘Scheduling TBs for Unicast’ field are from ‘110100 to ‘111111’ , four TBs are scheduled. If the bits 1 to 6 are from ‘110100’ to ‘111101’ , HARQ feedback enabling is indicated and bits 1 to 6 further indicate the MCS index plus 52, and if the bits 1 to 6 are from ‘111110’ to ‘111111’ , HARQ feedback disabling is indicated while the MCS index is indicated by the combination of ‘111110’ or ‘111111’ (for bits 1 to 6) and the ‘HARQ-ACK resource offset’ field.
  • the unused states in the ‘Scheduling TBs for Unicast’ field can be referred to as flag of the ‘Scheduling TBs for Unicast’ field to indicate the HARQ feedback disabling for a particular transmission.
  • a fifth embodiment relates to a scenario of FDD and one configured serving cell.
  • the UE uses a PUCCH resource for transmission of the HARQ-ACK feedback, where the PUCCH resource is determined by for example if MPDCCH-PRB-set is configured for distributed transmission.
  • ⁇ ARO is determined from the ‘HARQ-ACK resource offset’ field in the DCI format of the corresponding MPDCCH as shown in Table 6.
  • n ECCE, q is the number of the first ECCE (i.e., lowest ECCE index used to construct the MPDCCH) in the last detected MPDCCH used for transmission of the corresponding DCI assignment in MPDCCH-PRB-set.
  • MPDCCH-PRB-set is configured by the higher layer parameter.
  • eMTC CE Mode B it has been proposed to use one state of ‘HARQ-ACK resource offset’ field in DCI format 6-1B to indicate the HARQ feedback disabling. If a predetermined one state is used, scheduling restriction will be made to some PUCCH resource (s) .
  • the (one) state of the ‘HARQ-ACK resource offset’ field to indicate the HARQ feedback disabling is determined by HARQ process number and/or subframe number.
  • the state (or value) of the ‘HARQ-ACK resource offset’ field to indicate the HARQ feedback disabling is 0, and for HARQ processes 2 and 3, the state (or value) of the ‘HARQ-ACK resource offset’ field to indicate the HARQ feedback disabling is 1.
  • the one state of the ‘HARQ-ACK resource offset’ field to indicate the HARQ feedback disabling is subframe number %4.
  • the HARQ process number and subframe number%4 are further added to the equation to determine the PUCCH resource.
  • UE is configured with an RRC message (e.g., HARQ feedback enabling/disabling message) with bitmap manner, where the RRC message indicates the HARQ feedback enabling or disabling for each HARQ process, and the UE further receives a control message that indicates to override or to keep the HARQ feedback enabling or disabling indicated by the RRC message for the downlink transmission scheduled by the control message.
  • RRC message e.g., HARQ feedback enabling/disabling message
  • the control message can be the control message according to any of the first embodiment, the second embodiment, the third embodiment, the fourth embodiment and the fifth embodiment.
  • a first example of the sixth embodiment is shown in Table 7 by taking the control message according to the second embodiment as the control meassage indicating to override or to keep the HARQ feedback enabling or disabling indicated by the RRC message.
  • the first field indicates a value ranging from 0 to 9 to keep the RRC configuration (i.e., keeping the HARQ feedback enabling indicated by the HARQ feedback enabling/disabling message for the scheduled downlink transmission) , or indicates a value ranging from ‘1010’ to ‘1100’ to override the RRC configuration (i.e., overriding the HARQ feedback enabling indicated by the HARQ feedback enabling/disabling message as HARQ feedback disabling associated with the scheduled downlink transmission) .
  • the first field indicates a value ranging from ‘1010’ to ‘1100’ to keep the RRC configuration (i.e., keeping the HARQ feedback disabling indicated by the HARQ feedback enabling/disabling message for the scheduled downlink transmission) , or indicates a value ranging from 0 to 9 to override the RRC configuration (i.e., overriding the HARQ feedback disabling indicated by the HARQ feedback enabling/disabling message as HARQ feedback enabling associated with the scheduled downlink transmission) .
  • the sixth embodiment also applies to NTN NB-IoT HARQ feedback disabling and enabling with DCI indication.
  • DCI format N1 For NB-IoT, the HARQ feedback enabling or disabling associated with the scheduled downlink transmission shall be indicated in DCI format N1. Some related fields of DCI format N1 are shown in Table 8
  • the ‘MCS’ field of DCI format N1 has 4 bits.
  • the ‘MCS’ field of DCI format N1 indicates a MCS index.
  • the candidate MCS indices indicated by the ‘MCS’ field can be from 0 to 13 (i.e., from ‘0000’ to ‘1101’ ) . It means that there are six (2) unused states (e.g., from 14 to 15, i.e., from ‘1110’ to ‘1111’ ) for the ‘MCS’ field.
  • the ‘HARQ-ACK resource offset’ field of DCI format N1 has 4 bits, and indicates HARQ-ACK resource. If HARQ feedback disabling is indicated, it is unnecessary to indicate the HARQ-ACK resource for the scheduled downlink transmission.
  • the HARQ feedback enabling or disabling associated with the scheduled downlink transmission can be indicated as shown in Table 9.
  • the ‘MCS’ field indicates any of values ranging from ‘0000’ to ‘1101’
  • HARQ feedback enabling associated with the scheduled downlink transmission is indicated. Any of the values ranging from ‘0000’ to ‘1101’ of the ‘MCS’ field also indicates the MCS index.
  • the ‘HARQ-ACK resource’ field (which has 4 bits) indicates a value ranging from ‘0000’ to ‘1111’ , which indicates the HARQ-ACK feedback resource information.
  • the ‘MCS’ field When the ‘MCS’ field indicates value ‘1110’ , HARQ feedback disabling associated with the scheduled downlink transmission is indicated. In this condition, the ‘MCS’ field functions as HARQ feedback disabling indicator. Since HARQ feedback disabling associated with the scheduled downlink transmission is indicated, it is unnecessary to indicate the HARQ-ACK feedback resource information. So, the ‘HARQ-ACK resource’ field can be reused to indicate the MCS index. As shown in Table 9, when the ‘MCS’ field indicates the value ‘1110’ , the ‘HARQ-ACK resource’ field indicates a value of any of ‘0000’ to ‘1101’ functioning as the MCS index.
  • a second example of the sixth embodiment is shown in Table 10 by taking the control message shown in Table 9 as the control message indicating to override or to keep the HARQ feedback enabling or disabling indicated by the RRC message.
  • the ‘MCS’ field indicates a value ranging from ‘0000’ to ‘1101’ to keep the RRC configuration (i.e., keeping the HARQ feedback enabling indicated by the HARQ feedback enabling/disabling message for the scheduled downlink transmission) , or indicates a value ‘1110’ to override the RRC configuration (i.e., overriding the HARQ feedback enabling indicated by the HARQ feedback enabling/disabling message as HARQ feedback disabling associated with the scheduled downlink transmission) .
  • the ‘MCS’ field indicates a value ‘1110’ to keep the RRC configuration (i.e., keeping the HARQ feedback disabling indicated by the HARQ feedback enabling/disabling message for the scheduled downlink transmission) , or indicates a value ranging from ‘0000’ to ‘1101’ to override the RRC configuration (i.e., overriding the HARQ feedback disabling indicated by the HARQ feedback enabling/disabling message as HARQ feedback enabling associated with the scheduled downlink transmission) .
  • the above-described fifth embodiment also applies to NTN NB-IoT HARQ feedback disabling and enabling with DCI indication.
  • a fourth example of the fifth embodiment is described as follows: the ‘HARQ-ACK resource’ field has 4 bits, corresponding to states 0 to 15, where the state 15 can be used for HARQ feedback disabling indication for HARQ process 0 while the state 7 can be used for HARQ feedback disabling indication for HARQ process 1.
  • the control message indicates to override or to keep the HARQ feedback enabling or disabling indicated by the RRC message.
  • the control message indicates the HARQ feedback enabling or disabling associated with the scheduled TB (s) by the control message, where the HARQ feedback enabling or disabling indicated by the control message overrides HARQ feedback enabling or disabling indicated by the RRC message. It means that if the control message indicates the HARQ feedback enabling or disabling, the HARQ feedback enabling or disabling indicated by the RRC message is not considered.
  • the sixth embodiment and the variety of the sixth embodiment can indicate the HARQ feedback enabling or disabling associated with the scheduled one TB with the same result. For example, suppose the scheduled one TB by the control message is associated with HARQ process 0, and HARQ process 0 is indicated as HARQ feedback disabling by the RRC message, the control message according to the sixth embodiment may keep the RRC configuration (i.e., resulting HARQ feedback disabling associated with the scheduled one TB) or override the RRC configuration (i.e., resulting HARQ feedback enabling associated with the scheduled one TB) , while the control message according to the variety of the sixth embodiment may indicate HARQ feedback disabling associated with the scheduled one TB (i.e., resulting HARQ feedback disabling associated with the scheduled one TB) or indicate HARQ feedback enabling associated with the scheduled one TB (i.e., resulting HARQ feedback enabling associated with the scheduled one TB) .
  • the sixth embodiment and the variety of the sixth embodiment will indicate the HARQ feedback enabling or disabling associated with the scheduled two TBs with the different results.
  • control message according to the sixth embodiment may keep the RRC configuration (i.e., resulting HARQ feedback enabling associated with the scheduled first TB, and HARQ feedback disabling associated with the scheduled second TB) or override the RRC configuration (i.e., resulting HARQ feedback disabling associated with the scheduled first TB, and HARQ feedback enabling associated with the scheduled second TB)
  • the control message according to the variety of the sixth embodiment may indicate HARQ feedback enabling associated with the scheduled TBs (i.e., resulting HARQ feedback enabling associated with both the scheduled first TB and the scheduled second TB) or indicate HARQ feedback disabling associated with the scheduled TBs (i.e., resulting HARQ feedback disabling associated with both the scheduled first TB and the scheduled second TB) .
  • Figure 3 is a schematic flow chart diagram illustrating an embodiment of a method 300 according to the present application.
  • the method 300 is performed by an apparatus, such as a remote unit (UE) .
  • the method 300 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 300 may comprise 302 receiving a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and 304 receiving the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • control message comprises a second field; the first field further indicates the MCS index or an MCS set; and the second field indicates the resource associated with the HARQ feedback, or a MCS sub-index within the MCS set, or any combination thereof.
  • control message further comprises a second field; and the first field further indicates the MCS index, or the HARQ process number and the NDI; and the second field indicates the resource associated with the HARQ feedback, the HARQ process number and the NDI or the MCS index.
  • the first field includes multiple sub-fields, at least one of the multiple sub-fields indicates whether the HARQ feedback is enabled or disabled; the at least one sub-field is based at least in part on a quantity of transport blocks of the set of transport blocks.
  • the resource associated with the HARQ feedback is based at least in part on the HARQ process number or a subframe number, or both.
  • the method further comprises receiving a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the HARQ feedback enabled or disabled associated with the set of transport blocks indicated by the first field overrides the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method further comprises receiving a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the first field indicates whether HARQ feedback is enabled or disabled by indicating to override or to keep the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method comprises overriding an enabling or a disabling of the HARQ feedback, associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks, based on the RRC message; or maintain the enabling or the disabling of the HARQ feedback associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks.
  • a UE may determine to keep the HARQ feedback disabled or enabled as indicated in the first field received in the control message. In these examples, the UE may ignore the indication received in the RRC message. Put another way, the UE may refrain from changing the HARQ feedback from enabled (as indicated in the first field of the received control message) to disabled (as indicated in the received RRC message) . Alternatively, the UE may refrain from changing the HARQ feedback from disabled (as indicated in the first field of the received control message) to enabled (as indicated in the received RRC message) .
  • the UE may change (e.g., override, update, modify) the HARQ feedback from disabled to enabled, or from enabled to disabled, based on the RRC message.
  • the UE may switch, based on the RRC message, the HARQ feedback from disabled to enabled.
  • the UE may switch, based on the RRC message, the HARQ feedback from disabled to enabled.
  • the UE may change (e.g., override) the HARQ feedback to be enabled or disabled, which may be different from the indication, received in the control message, via the first field that that HARQ feedback is enabled or disabled.
  • Figure 4 is a schematic flow chart diagram illustrating a further embodiment of a method 400 according to the present application.
  • the method 400 is performed by an apparatus, such as a network entity (e.g., a base unit) .
  • the method 400 may be performed by a processor executing program code, for example, a microcontroller, a microprocessor, a CPU, a GPU, an auxiliary processing unit, a FPGA, or the like.
  • the method 400 may comprise 402 transmitting a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and 404 transmitting the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • control message comprises a second field; the first field further indicates the MCS index or an MCS set; and the second field indicates the resource associated with the HARQ feedback, or a MCS sub-index within the MCS set, or any combination thereof.
  • control message further comprises a second field; and the first field further indicates the MCS index, or the HARQ process number and the NDI; and the second field indicates the resource associated with the HARQ feedback, the HARQ process number and the NDI or the MCS index.
  • the first field includes multiple sub-fields, at least one of the multiple sub-fields indicates whether the HARQ feedback is enabled or disabled; the at least one sub-field is based at least in part on a quantity of transport blocks of the set of transport blocks.
  • the resource associated with the HARQ feedback is based at least in part on the HARQ process number or a subframe number, or both.
  • the method further comprises transmitting a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the HARQ feedback enabled or disabled associated with the set of transport blocks indicated by the first field overrides the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method further comprises transmitting a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the first field indicates whether HARQ feedback is enabled or disabled by indicating to override or to keep the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method comprises overriding an enabling or a disabling of the HARQ feedback, associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks, based on the RRC message; or maintain the enabling or the disabling of the HARQ feedback associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks.
  • Figure 5 is a schematic block diagram illustrating apparatuses according to one embodiment.
  • the UE i.e., the remote unit
  • the UE includes a processor, a memory, and a transceiver.
  • the processor implements a function, a process, and/or a method which are proposed in Figure 3.
  • the UE comprises a processor; and a transceiver coupled to the processor, wherein the processor is configured to cause the UE to: receive a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and receive the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • control message comprises a second field; the first field further indicates the MCS index or an MCS set; and the second field indicates the resource associated with the HARQ feedback, or a MCS sub-index within the MCS set, or any combination thereof.
  • control message further comprises a second field; and the first field further indicates the MCS index, or the HARQ process number and the NDI; and the second field indicates the resource associated with the HARQ feedback, the HARQ process number and the NDI or the MCS index.
  • the first field includes multiple sub-fields, at least one of the multiple sub-fields indicates whether the HARQ feedback is enabled or disabled; the at least one sub-field is based at least in part on a quantity of transport blocks of the set of transport blocks.
  • the resource associated with the HARQ feedback is based at least in part on the HARQ process number or a subframe number, or both.
  • the processor is further configured to receive a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the HARQ feedback enabled or disabled associated with the set of transport blocks indicated by the first field overrides the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the processor is further configured to receive a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the first field indicates whether HARQ feedback is enabled or disabled by indicating to override or to keep the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method comprises overriding an enabling or a disabling of the HARQ feedback, associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks, based on the RRC message; or maintain the enabling or the disabling of the HARQ feedback associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks.
  • the gNB i.e., network entity, e.g., base unit
  • the gNB includes a processor, a memory, and a transceiver.
  • the processors implement a function, a process, and/or a method which are proposed in Figure 4.
  • the network entity comprises a processor; and a transceiver coupled to the processor, wherein the processor is configured to cause the network entity to: transmit a control message scheduling a set of transport blocks, wherein the set of transport blocks comprise one or more transport blocks, the control message comprising a first field indicating whether hybrid automatic repeat request (HARQ) feedback is enabled or disabled for the set of transport blocks, the first field further indicating a modulation coding scheme (MCS) index, a resource associated with the HARQ feedback, a HARQ process number, a new data indicator (NDI) , or any combination thereof; and transmit the set of transport blocks based at least in part on the received control message.
  • MCS modulation coding scheme
  • control message comprises a second field; the first field further indicates the MCS index or an MCS set; and the second field indicates the resource associated with the HARQ feedback, or a MCS sub-index within the MCS set, or any combination thereof.
  • control message further comprises a second field; and the first field further indicates the MCS index, or the HARQ process number and the NDI; and the second field indicates the resource associated with the HARQ feedback, the HARQ process number and the NDI or the MCS index.
  • the first field includes multiple sub-fields, at least one of the multiple sub-fields indicates whether the HARQ feedback is enabled or disabled; the at least one sub-field is based at least in part on a quantity of transport blocks of the set of transport blocks.
  • the resource associated with the HARQ feedback is based at least in part on the HARQ process number or a subframe number, or both.
  • the processor is further configured to transmit a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the HARQ feedback enabled or disabled associated with the set of transport blocks indicated by the first field overrides the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the processor is further configured to transmit a radio resource control (RRC) message indicating whether the HARQ feedback is enabled or disabled; the first field indicates whether HARQ feedback is enabled or disabled by indicating to override or to keep the HARQ feedback enabled or disabled indicated by the RRC message.
  • RRC radio resource control
  • the method comprises overriding an enabling or a disabling of the HARQ feedback, associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks, based on the RRC message; or maintain the enabling or the disabling of the HARQ feedback associated with the first field indicating whether the HARQ feedback is enabled or disabled for the set of transport blocks.
  • Layers of a radio interface protocol may be implemented by the processors.
  • the memories are connected with the processors to store various pieces of information for driving the processors.
  • the transceivers are connected with the processors to transmit and/or receive a radio signal. Needless to say, the transceiver may be implemented as a transmitter to transmit the radio signal and a receiver to receive the radio signal.
  • the memories may be positioned inside or outside the processors and connected with the processors by various well-known means.
  • each component or feature should be considered as an option unless otherwise expressly stated.
  • Each component or feature may be implemented not to be associated with other components or features.
  • the embodiment may be configured by associating some components and/or features. The order of the operations described in the embodiments may be changed. Some components or features of any embodiment may be included in another embodiment or replaced with the component and the feature corresponding to another embodiment. It is apparent that the claims that are not expressly cited in the claims are combined to form an embodiment or be included in a new claim.
  • the embodiments may be implemented by hardware, firmware, software, or combinations thereof.
  • the exemplary embodiment described herein may be implemented by using one or more application-specific integrated circuits (ASICs) , digital signal processors (DSPs) , digital signal processing devices (DSPDs) , programmable logic devices (PLDs) , field programmable gate arrays (FPGAs) , processors, controllers, micro-controllers, microprocessors, and the like.
  • ASICs application-specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays

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Abstract

Des procédés et des appareils de désactivation de rétroaction de NTN par l'intermédiaire d'informations de contrôle de liaison descendante. Un UE comprend un processeur ; et un émetteur-récepteur couplé au processeur, le processeur étant configuré pour amener l'UE à : recevoir un message de commande planifiant un ensemble de blocs de transport, l'ensemble de blocs de transport comprenant un ou plusieurs blocs de transport, le message de commande comprenant un premier champ indiquant si une rétroaction de demande de répétition automatique hybride (HARQ) est activée ou désactivée pour l'ensemble de blocs de transport, le premier champ indiquant en outre un indice de schéma de codage de modulation (MCS), une ressource associée à la rétroaction HARQ, un numéro de processus HARQ, un nouvel indicateur de données (ND I), ou toute combinaison de ceux-ci ; et recevoir l'ensemble de blocs de transport sur la base, au moins en partie, du message de commande reçu.
PCT/CN2022/138055 2022-12-09 2022-12-09 Désactivation de rétroaction de réseau non terrestre par l'intermédiaire d'informations de contrôle de liaison descendante WO2024073940A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112740594A (zh) * 2018-09-25 2021-04-30 Idac控股公司 用于支持v2x上的harq的方法、设备和系统
CN113259070A (zh) * 2020-02-13 2021-08-13 苹果公司 用于无线通信的harq设计
CN114731234A (zh) * 2019-10-02 2022-07-08 弗劳恩霍夫应用研究促进协会 基于harq进程/实体的上行链路复用
EP4068889A1 (fr) * 2021-03-31 2022-10-05 Nokia Technologies Oy Signalisation efficace de ressources de transmission non préférées

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112740594A (zh) * 2018-09-25 2021-04-30 Idac控股公司 用于支持v2x上的harq的方法、设备和系统
CN114731234A (zh) * 2019-10-02 2022-07-08 弗劳恩霍夫应用研究促进协会 基于harq进程/实体的上行链路复用
CN113259070A (zh) * 2020-02-13 2021-08-13 苹果公司 用于无线通信的harq设计
EP4068889A1 (fr) * 2021-03-31 2022-10-05 Nokia Technologies Oy Signalisation efficace de ressources de transmission non préférées

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