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WO2023111616A1 - Appareil et procédé de communication sans fil - Google Patents

Appareil et procédé de communication sans fil Download PDF

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Publication number
WO2023111616A1
WO2023111616A1 PCT/IB2021/000933 IB2021000933W WO2023111616A1 WO 2023111616 A1 WO2023111616 A1 WO 2023111616A1 IB 2021000933 W IB2021000933 W IB 2021000933W WO 2023111616 A1 WO2023111616 A1 WO 2023111616A1
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WO
WIPO (PCT)
Prior art keywords
resource
pdsch
harq
location
process type
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IB2021/000933
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English (en)
Inventor
Hao Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orope France SARL
Original Assignee
Orope France SARL
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 Orope France SARL filed Critical Orope France SARL
Priority to PCT/IB2021/000933 priority Critical patent/WO2023111616A1/fr
Publication of WO2023111616A1 publication Critical patent/WO2023111616A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes

Definitions

  • the present disclosure relates to the field of communication systems, and more particularly, to an apparatus and a method of wireless communication, which can provide a good communication performance and/or high reliability.
  • Non-terrestrial networks refer to networks, or segments of networks, using a spaceborne vehicle or an airborne vehicle for transmission.
  • Spaceborne vehicles include satellites including low earth orbiting (LEO) satellites, medium earth orbiting (MEO) satellites, geostationary earth orbiting (GEO) satellites, and highly elliptical orbiting (HEO) satellites.
  • Airborne vehicles include high altitude platforms (HAPs) encompassing unmanned aircraft systems (UAS) including lighter than air (LTA) unmanned aerial systems (UAS) and heavier than air (HTA) UAS, all operating in altitudes typically between 8 and 50 km, quasi-stationary.
  • HAPs high altitude platforms
  • UAS unmanned aircraft systems
  • LTA lighter than air
  • UAS unmanned aerial systems
  • HTA heavier than air
  • Pipeline processing on a user equipment (UE) side has been designed for long time.
  • Multiple hybrid automatic repeat request (HARQ) process numbers are used, therefore, multiple physical downlink shared channels (PDSCHs)/ physical uplink shared channels (PUSCHs) can be scheduled for different HARQ process numbers, to increase a throughput.
  • PDSCHs physical downlink shared channels
  • PUSCHs physical uplink shared channels
  • An object of the present disclosure is to propose an apparatus (such as a user equipment (UE) and/or a base station) and a method of wireless communication, which can provide a method to clarify whether a pipeline processing flow can be still maintained while an out of order scheduling is allowed, provide a good communication performance, and/or provide high reliability.
  • UE user equipment
  • base station a base station
  • a method of wireless communication by a user equipment comprises being configured, by a base station, with a reception of a first physical downlink shared channel (PDSCH) and a reception of a second PDSCH, wherein the first PDSCH is associated with a first hybrid automatic repeat request (HARQ) process type, the second PDSCH is associated with a second HARQ process type, and at least one of the first HARQ process type and the second HARQ process type includes a HARQ feedback disabled type, and being configured, by the base station, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • HARQ hybrid automatic repeat request
  • the first PDSCH is scheduled by a first downlink control information (DCI)
  • the second PDSCH is scheduled by a second DCI.
  • DCI downlink control information
  • the first DCI indicates the first resource for HARQ-acknowledgment (HARQ- ACK) feedback
  • the second DCI indicates the second resource for HARQ-ACK feedback
  • the second PDSCH starts later than the first PDSCH.
  • the first HARQ process type comprises a HARQ feedback enabled type
  • the second HARQ process type comprises the HARQ feedback disabled type
  • the location of the second resource is before the first resource, overlapped with the first resource, or after the first resource in time domain.
  • the first HARQ process type comprises the HARQ feedback disabled type
  • the second HARQ process type comprises a HARQ feedback enabled type
  • an end of the second resource is not before a start of the first resource in time domain.
  • the location of the first resource is before the location of the second resource in the time domain.
  • the location of the first resource is overlapped with the location of the second resource in the time domain.
  • an end of the second resource is before a start of the first resource in time domain if the second resource and the first resource are within a same slot or if the end of the second resource is before the start of the first resource by a number of slots, wherein the number is smaller than or equal to a value.
  • the value is pre-defined or pre-configured.
  • the first HARQ process type comprises the HARQ feedback disabled type
  • the second HARQ process type comprises the HARQ feedback disabled type
  • the location of the second resource following a condition with respect to the location of the first resource comprises that there is no restriction of the location of the second resource with respect to the location of the first resource.
  • the location of the second resource is before the first resource, overlapped with the first resource, or after the first resource in time domain.
  • a method of wireless communication by a base station comprises configuring, to a user equipment (UE), a reception of a first physical downlink shared channel (PDSCH) and a reception of a second PDSCH, wherein the first PDSCH is associated with a first hybrid automatic repeat request (HARQ) process type, the second PDSCH is associated with a second HARQ process type, and at least one of the first HARQ process type and the second HARQ process type comprises a HARQ feedback disabled type, and configuring, to the UE, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • HARQ hybrid automatic repeat request
  • the first PDSCH is scheduled by a first downlink control information (DCI)
  • the second PDSCH is scheduled by a second DCI.
  • DCI downlink control information
  • the first DCI indicates the first resource for HARQ-acknowledgment (HARQ-ACK) feedback
  • the second DCI indicates the second resource for HARQ-ACK feedback.
  • the second PDSCH starts later than the first PDSCH.
  • the first HARQ process type comprises a HARQ feedback enabled type
  • the second HARQ process type comprises the HARQ feedback disabled type
  • the location of the second resource is before the first resource, overlapped with the first resource, or after the first resource in time domain.
  • the first HARQ process type comprises the HARQ feedback disabled type
  • the second HARQ process type comprises a HARQ feedback enabled type
  • an end of the second resource is not before a start of the first resource in time domain.
  • the location of the first resource is before the location of the second resource in the time domain.
  • the location of the first resource is overlapped with the location of the second resource in the time domain.
  • an end of the second resource is before a start of the first resource in time domain if the second resource and the first resource are within a same slot or if the end of the second resource is before the start of the first resource by a number of slots, wherein the number is smaller than or equal to a value.
  • the value is pre-defined or pre-configured.
  • the first HARQ process type comprises the HARQ feedback disabled type
  • the second HARQ process type comprises the HARQ feedback disabled type
  • the location of the second resource following a condition with respect to the location of the first resource comprises that there is no restriction of the location of the second resource with respect to the location of the first resource.
  • the location of the second resource is before the first resource, overlapped with the first resource, or after the first resource in time domain.
  • a user equipment comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to perform the above method.
  • a base station comprises a memory, a transceiver, and a processor coupled to the memory and the transceiver.
  • the processor is configured to perform the above method.
  • a non-transitory machine-readable storage medium has stored thereon instructions that, when executed by a computer, cause the computer to perform the above method.
  • a chip includes a processor, configured to call and run a computer program stored in a memory, to cause a device in which the chip is installed to execute the above method.
  • a computer readable storage medium in which a computer program is stored, causes a computer to execute the above method.
  • a computer program product includes a computer program, and the computer program causes a computer to execute the above method.
  • a computer program causes a computer to execute the above method.
  • FIG. 1 A is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB or eNB) of communication in a communication network system (e.g., non-terrestrial network (NTN) or a terrestrial network) according to an embodiment of the present disclosure.
  • UEs user equipments
  • a base station e.g., gNB or eNB
  • NTN non-terrestrial network
  • NTN non-terrestrial network
  • FIG. IB is a block diagram of one or more user equipments (UEs) and a base station (e.g., gNB or eNB) of communication in a non-terrestrial network (NTN) system according to an embodiment of the present disclosure.
  • UEs user equipments
  • NTN non-terrestrial network
  • FIG. 2 is a flowchart illustrating a method of wireless communication performed by a user equipment (UE) according to an embodiment of the present disclosure.
  • FIG. 3 is a flowchart illustrating a method of wireless communication performed by a base station according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram illustrating a communication system including a base station (BS) and a UE according to an embodiment of the present disclosure.
  • BS base station
  • UE UE
  • FIG. 5 is a schematic diagram illustrating that a BS transmits 3 beams to the ground forming 3 footprints according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram illustrating an uplink-downlink timing relation according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram illustrating an example of a HARQ disabling configuration according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram illustrating an example of a HARQ disabling configuration according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram illustrating an example of a HARQ disabling configuration according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram illustrating an example of a HARQ disabling configuration according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic diagram illustrating an example of a HARQ disabling configuration according to an embodiment of the present disclosure.
  • FIG. 12 is a block diagram of a system for wireless communication according to an embodiment of the present disclosure.
  • FIG. 1A illustrates that, in some embodiments, one or more user equipments (UEs) 10 and a base station (e.g., gNB or eNB) 20 for transmission adjustment in a communication network system 30 (e.g., non-terrestrial network (NTN) or terrestrial network) according to an embodiment of the present disclosure are provided.
  • the communication network system 30 includes the one or more UEs 10 and the base station 20.
  • the one or more UEs 10 may include a memory 12, a transceiver 13, and a processor 11 coupled to the memory 12 and the transceiver 13.
  • the base station 20 may include a memory 22, a transceiver 23, and a processor 21 coupled to the memory 22 and the transceiver 23.
  • the processor 11 or 21 may be configured to implement proposed functions, procedures and/or methods described in this description. Layers of radio interface protocol may be implemented in the processor 11 or 21.
  • the memory 12 or 22 is operatively coupled with the processor 11 or 21 and stores a variety of information to operate the processor 11 or 21.
  • the transceiver 13 or 23 is operatively coupled with the processor 11 or 21, and the transceiver 13 or 23 transmits and/or receives a radio signal.
  • the processor 11 or 21 may include application-specific integrated circuit (ASIC), other chipset, logic circuit and/or data processing device.
  • the memory 12 or 22 may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and/or other storage device.
  • the transceiver 13 or 23 may include baseband circuitry to process radio frequency signals.
  • modules e.g., procedures, functions, and so on
  • the modules can be stored in the memory 12 or 22 and executed by the processor 11 or 21.
  • the memory 12 or 22 can be implemented within the processor 11 or 21 or external to the processor 11 or 21 in which case those can be communicatively coupled to the processor 11 or 21 via various means as is known in the art.
  • the communication between the UE 10 and the BS 20 comprises non-terrestrial network (NTN) communication.
  • NTN non-terrestrial network
  • the base station 20 comprises spaceborne platform or airborne platform or high altitude platform station.
  • the base station 20 can communicate with the UE 10 via a spaceborne platform or airborne platform, e.g., NTN satellite 40, as illustrated in FIG. IB.
  • FIG. IB illustrates a system which includes a base station 20 and one or more UEs 10.
  • the system may include more than one base station 20, and each of the base stations 20 may connect to one or more UEs 10.
  • the base station 20 as illustrated in FIG. IB may be a moving base station, e.g., spaceborne vehicle (satellite) or airborne vehicle (drone).
  • the UE 10 can transmit transmissions to the base station 20 and the UE 10 can also receive the transmission from the base station 20.
  • the moving base station can also serve as a relay which relays the received transmission from the UE 10 to a ground base station or vice versa.
  • a satellite 40 may be seen as a relay point which relays the communications between a UE 10 and a base station 20, e.g., gNB/eNB.
  • Spaceborne platform includes satellite 40 and the satellite 40 includes LEO satellite, MEO satellite, and GEO satellite. While the satellite 40 is moving, the LEO satellite and MEO satellite are moving with regard to a given location on earth. However, for GEO satellite, the GEO satellite is relatively static with regard to a given location on earth.
  • Spaceborne platform includes satellite and the satellite includes low earth orbiting (LEO) satellite, medium earth orbiting (MEO) satellite and geostationary earth orbiting (GEO) satellite. While the satellite is moving, the LEO and MEO satellite is moving with regard to a given location on earth. However, for GEO satellite, the GEO satellite is relatively static with regard to a given location on earth.
  • LEO low earth orbiting
  • MEO medium earth orbiting
  • GEO geostationary earth orbiting
  • HARQ process numbers are used, therefore, multiple physical downlink shared channels (PDSCHs)/ physical uplink shared channels (PUSCHs) can be scheduled for different HARQ process numbers, to increase a throughput.
  • PDSCHs physical downlink shared channels
  • PUSCHs physical uplink shared channels
  • R15 and R16 it is specified in TS 38.214 section 5 that an out of order scheduling is not allowed to maintain a pipeline processing flow.
  • R17 NTN system a HARQ process can be configured to be absent of providing HARQ-ACK information to a network.
  • the UE does not report HARQ-ACK information of the HARQ process if any PDSCH is scheduled with the HARQ process number. For example, the UE reports HARQ-ACK information of the HARQ process if any PDSCH is scheduled with a HARQ process number 0, 1, or 2, and the UE does not report HARQ-ACK information of the HARQ process if any PDSCH is scheduled with a HARQ process number 3 or 4. In current case, whether the pipeline processing flow can be still maintained while an out of order scheduling is allowed is not clear. In this disclosure, some embodiments provide a method to clarify this issue.
  • the processor 11 is configured, by the base station 20, with a reception of a first physical downlink shared channel (PDSCH) and a reception of a second PDSCH, wherein the first PDSCH is associated with a first hybrid automatic repeat request (HARQ) process type, the second PDSCH is associated with a second HARQ process type, and at least one of the first HARQ process type and the second HARQ process type includes a HARQ feedback disabled type, and the processor 11 is configured, by the base station 20, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • HARQ hybrid automatic repeat request
  • the processor 11 is configured, by the base station 20, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • the processor 21 is configured to configure, to a user equipment (UE), a reception of a first physical downlink shared channel (PDSCH) and a reception of a second PDSCH, wherein the first PDSCH is associated with a first hybrid automatic repeat request (HARQ) process type, the second PDSCH is associated with a second HARQ process type, and at least one of the first HARQ process type and the second HARQ process type comprises a HARQ feedback disabled type, and the processor 21 is configured to configure, to the UE, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • UE user equipment
  • PDSCH physical downlink shared channel
  • HARQ hybrid automatic repeat request
  • the second PDSCH is associated with a second HARQ process type
  • at least one of the first HARQ process type and the second HARQ process type comprises a HARQ feedback disabled type
  • FIG. 2 illustrates a method 200 of wireless communication by a user equipment (UE) according to an embodiment of the present disclosure.
  • the method 200 includes: a block 202, being configured, by a base station, with a reception of a first physical downlink shared channel (PDSCH) and a reception of a second PDSCH, wherein the first PDSCH is associated with a first hybrid automatic repeat request (HARQ) process type, the second PDSCH is associated with a second HARQ process type, and at least one of the first HARQ process type and the second HARQ process type includes a HARQ feedback disabled type, and a block 204, being configured, by the base station, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • a block 202 being configured, by a base station, with a reception of a first physical downlink shared channel (PDSCH) and a reception of a
  • FIG. 3 illustrates a method 300 of wireless communication by a base station according to an embodiment of the present disclosure.
  • the method 300 includes: a block 302, configuring, to a user equipment (UE), a reception of a first physical downlink shared channel (PDSCH) and a reception of a second PDSCH, wherein the first PDSCH is associated with a first hybrid automatic repeat request (HARQ) process type, the second PDSCH is associated with a second HARQ process type, and at least one of the first HARQ process type and the second HARQ process type comprises a HARQ feedback disabled type, and a block 304, configuring, to the UE, a first resource associated with the first PDSCH and a second resource associated with the second PDSCH, wherein a location of the second resource follows a condition with respect to a location of the first resource.
  • HARQ hybrid automatic repeat request
  • the first PDSCH is scheduled by a first downlink control information (DC1), and the second PDSCH is scheduled by a second DC1.
  • the first DC1 indicates the first resource for HARQ-acknowledgment (HARQ-ACK) feedback
  • the second DC1 indicates the second resource for HARQ-ACK feedback.
  • the second PDSCH starts later than the first PDSCH.
  • the first HARQ process type comprises a HARQ feedback enabled type
  • the second HARQ process type comprises the HARQ feedback disabled type.
  • the location of the second resource is before the first resource, overlapped with the first resource, or after the first resource in time domain.
  • the first HARQ process type comprises the HARQ feedback disabled type
  • the second HARQ process type comprises a HARQ feedback enabled type.
  • an end of the second resource is not before a start of the first resource in time domain.
  • the location of the first resource is before the location of the second resource in the time domain.
  • the location of the first resource is overlapped with the location of the second resource in the time domain.
  • an end of the second resource is before a start of the first resource in time domain if the second resource and the first resource are within a same slot or if the end of the second resource is before the start of the first resource by a number of slots, wherein the number is smaller than or equal to a value.
  • the value is pre-defined or pre-configured.
  • the first HARQ process type comprises the HARQ feedback disabled type
  • the second HARQ process type comprises the HARQ feedback disabled type.
  • the location of the second resource following a condition with respect to the location of the first resource comprises that there is no restriction of the location of the second resource with respect to the location of the first resource.
  • the location of the second resource is before the first resource, overlapped with the first resource, or after the first resource in time domain.
  • FIG. 4 illustrates a communication system including a base station (BS) and a UE according to another embodiment of the present disclosure.
  • the communication system may include more than one base station, and each of the base stations may connect to one or more UEs.
  • the base station illustrated in FIG. 1A may be a moving base station, e.g., spaceborne vehicle (satellite) or airborne vehicle (drone).
  • the UE can transmit transmissions to the base station and the UE can also receive the transmission from the base station.
  • the moving base station can also serve as a relay which relays the received transmission from the UE to a ground base station or vice versa.
  • Spaceborne platform includes satellite and the satellite includes LEO satellite, MEO satellite and GEO satellite. While the satellite is moving, the LEO and MEO satellite is moving with regards to a given location on earth. However, for GEO satellite, the GEO satellite is relatively static with regards to a given location on earth.
  • a moving base station or satellite e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground. Due to long distance between the UE and the base station on satellite, the beamformed transmission is needed to extend the coverage.
  • UE user equipment
  • a base station is integrated in a satellite or a drone, and the base station transmits one or more beams to the ground forming one or more coverage areas called footprint.
  • the BS transmits three beams (beam 1 , beam 2 and beam3) to form three footprints (footprint 1 , 2 and 3), respectively.
  • 3 beams are transmitted at 3 different frequencies.
  • the bit position is associated with a beam.
  • a moving base station e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground.
  • UE user equipment
  • each beam may be transmitted at dedicated frequencies so that the beams for footprint 1, 2 and 3 are non-overlapped in a frequency domain.
  • the advantage of having different frequencies corresponding to different beams is that the inter-beam interference can be minimized.
  • a moving base station e.g., in particular for LEO satellite or drone, communicates with a user equipment (UE) on the ground.
  • a round trip time (RTT) between the BS and the UE is time varying.
  • the RTT variation is related to a distance variation between the BS and the UE.
  • the RTT variation rate is proportional to a BS motion velocity.
  • the BS will adjust an uplink transmission timing and/or frequency for the UE.
  • a method for uplink synchronization adjustment is provided, and the uplink synchronization adjustment comprises at least one of the followings: a transmission timing adjustment or a transmission frequency adjustment.
  • the transmission timing adjustment further comprises a timing advance (TA) adjustment.
  • TA timing advance
  • FIG. 6 illustrates an uplink-downlink timing relation according to an embodiment of the present disclosure.
  • T f refers to a radio frame duration. refers to subcarrier spacing.
  • n f refers to a system frame number (SFN). refers to a basic time unit for NR.
  • T sf refers to a subframe duration.
  • a S y ⁇ b refers to number of symbols per slot.
  • yy ⁇ frame ’f t refers to number of slots per subframe for subcarrier spacing configuration i.
  • Each frame is divided into two equally-sized half- frames of five subframes each with half- frame 0 consisting of subframes 0 to 4 and half-frame 1 consisting of subframes 5 to 9. There is one set of frames in the uplink and one set of frames in the downlink on a carrier.
  • T TA refers to timing advance between downlink and uplink.
  • /V refers to timing advance between downlink and uplink.
  • a TA o ff set refers to a fixed offset used to calculate the timing advance.
  • T c refers to a basic time unit for NR.
  • the examples given in this disclosure can be applied for loT device or NB-loT UE in NTN systems, but the method is not exclusively restricted to NTN system nor for loT devices or NB-loT UE.
  • the examples given in this disclosure can be applied for NR systems, LTE systems, or NB-loT systems.
  • a UE can be configured with HARQ disabling configuration.
  • the HARQ disabling is associated with a HARQ process number.
  • a network may configure a first HARQ process number with HARQ disabling and configure a second HARQ process number with HARQ enabling.
  • the network may still allocate a PUCCH resource for the PDSCH, e.g., indicating the PUCCH allocated resource in a DCI scheduling the PDSCH.
  • the UE does not transmit the HARQ-ACK information of the PDSCH reception in the allocated PUCCH resource. If the PDSCH is scheduled with the second HARQ process number, the UE needs to report HARQ-ACK information of the PDSCH reception.
  • some embodiments denote a HARQ process type as HARQ feedback enabled, when a PDSCH is scheduled with the HARQ process and the UE is required to report HARQ-ACK information of the PDSCH reception. While some embodiments further denote a HARQ process type as HARQ feedback disabled, when a PDSCH is scheduled with the HARQ process and the UE is not required to report HARQ-ACK information of the PDSCH reception.
  • a UE receives a first PDSCH, which is scheduled by a first DCI.
  • the first PDSCH is associated with a first HARQ process type, where the first HARQ process type is HARQ feedback enabled.
  • the first DCI indicates a first resource for HARQ-ACK feedback.
  • the UE also receives a second PDSCH, which is scheduled by a second DCI.
  • the second PDSCH is associated with a second HARQ process type, where the second HARQ process type is HARQ feedback disabled.
  • the second DCI indicates a second resource for HARQ-ACK feedback.
  • the second PDSCH starts later than the first PDSCH. Because the UE does not need to report HARQ-ACK information of the second PDSCH, even though the second resource is indicated by the second DCI.
  • the processing time for the first PDSCH is not impacted by the HARQ-ACK feedback of the second PDSCH (because the UE does not report the HARQ-ACK information of the second PDSCH).
  • the second resource is a virtual resource.
  • the location of the second resource can be before the first resource or can be overlapped with the first resource or after the first resource in time domain.
  • the end of the second resource is before the start of the first resource as illustrated in FIG. 7, it is an out of order scheduling of the second PDSCH. In this example, the out of order scheduling is allowed.
  • a UE when a UE receives a first PDSCH, which is scheduled by a first DCI.
  • the first PDSCH is associated with a first HARQ process type, where the first HARQ process type is HARQ feedback enabled.
  • the first DCI indicates a first resource for HARQ-ACK feedback.
  • the UE also receives a second PDSCH, which is scheduled by a second DCI.
  • the second PDSCH is associated with a second HARQ process type, where the second HARQ process type is HARQ feedback disabled.
  • the second DCI indicates a second resource for HARQ-ACK feedback. In this example, the second PDSCH starts later than the first PDSCH.
  • a UE when a UE receives a first PDSCH, which is scheduled by a first DCI.
  • the first PDSCH is associated with a first HARQ process type, where the first HARQ process type is HARQ feedback disabled.
  • the first DCI indicates a first resource for HARQ-ACK feedback.
  • the UE also receives a second PDSCH, which is scheduled by a second DCI.
  • the second PDSCH is associated with a second HARQ process type, where the second HARQ process type is HARQ feedback enabled.
  • the second DCI indicates a second resource for HARQ-ACK feedback. In this example, the second PDSCH starts later than the first PDSCH.
  • the UE Since the UE does not need to report HARQ-ACK information of the first PDSCH, even though the first resource is indicated by the second DCI. Since the second PDSCH is received after the first PDSCH and the processing on the second PDSCH depends on how urgent the HARQ-ACK information of the second PDSCH is needed to be reported. In this case, the processing of the first PDSCH is impacted by the second PDSCH, e.g., due to the pipeline processing concept, the processing of the second PDSCH is after the processing of the first PDSCH (because the first PDSCH is received earlier). Moreover, the processing of the first PDSCH may need to be quicker or slower depending on the expected HARQ-ACK feedback time of the second PDSCH.
  • FIG. 11 illustrates an example of a HARQ disabling configuration according to an embodiment of the present disclosure.
  • a UE receives a first PDSCH, which is scheduled by a first DCI.
  • the first PDSCH is associated with a first HARQ process type, where the first HARQ process type is HARQ feedback disabled.
  • the first DCI indicates a first resource for HARQ-ACK feedback.
  • the UE also receives a second PDSCH, which is scheduled by a second DCI.
  • the second PDSCH is associated with a second HARQ process type, where the second HARQ process type is HARQ feedback disabled.
  • the second DCI indicates a second resource for HARQ-ACK feedback. In this example, the second PDSCH starts later than the first PDSCH.
  • the out of order scheduling of the second PDSCH is allowed. It means that there is no restriction of the location of the second resource with respect to the first resource.
  • FIG. 12 is a block diagram of an example system 700 for wireless communication according to an embodiment of the present disclosure. Embodiments described herein may be implemented into the system using any suitably configured hardware and/or software.
  • FIG. 12 illustrates the system 700 including a radio frequency (RF) circuitry 710, a baseband circuitry 720, an application circuitry 730, a memory/storage 740, a display 750, a camera 760, a sensor 770, and an input/output (I/O) interface 780, coupled with each other at least as illustrated.
  • the application circuitry 730 may include a circuitry such as, but not limited to, one or more singlecore or multi-core processors.
  • the processors may include any combination of general-purpose processors and dedicated processors, such as graphics processors, application processors.
  • the processors may be coupled with the memory/storage and configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems running on the system.
  • the baseband circuitry 720 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processors may include a baseband processor.
  • the baseband circuitry may handle various radio control functions that enables communication with one or more radio networks via the RF circuitry.
  • the radio control functions may include, but are not limited to, signal modulation, encoding, decoding, radio frequency shifting, etc.
  • the baseband circuitry may provide for communication compatible with one or more radio technologies.
  • the baseband circuitry may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • Embodiments in which the baseband circuitry is configured to support radio communications of more than one wireless protocol may be referred to as multimode baseband circuitry
  • the baseband circuitry 720 may include circuitry to operate with signals that are not strictly considered as being in a baseband frequency.
  • baseband circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the RF circuitry 710 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • the RF circuitry 710 may include circuitry to operate with signals that are not strictly considered as being in a radio frequency.
  • RF circuitry may include circuitry to operate with signals having an intermediate frequency, which is between a baseband frequency and a radio frequency.
  • the transmitter circuitry, control circuitry, or receiver circuitry discussed above with respect to the user equipment, eNB, or gNB may be embodied in whole or in part in one or more of the RF circuitry, the baseband circuitry, and/or the application circuitry.
  • “circuitry” may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or a memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the electronic device circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • some or all of the constituent components of the baseband circuitry, the application circuitry, and/or the memory/ storage may be implemented together on a system on a chip (SOC).
  • SOC system on a chip
  • the memory/storage 740 may be used to load and store data and/or instructions, for example, for system.
  • the memory/storage for one embodiment may include any combination of suitable volatile memory, such as dynamic random access memory (DRAM)), and/or non-volatile memory, such as flash memory.
  • DRAM dynamic random access memory
  • flash memory non-volatile memory
  • the I/O interface 780 may include one or more user interfaces designed to enable user interaction with the system and/or peripheral component interfaces designed to enable peripheral component interaction with the system.
  • User interfaces may include, but are not limited to a physical keyboard or keypad, a touchpad, a speaker, a microphone, etc.
  • Peripheral component interfaces may include, but are not limited to, a non-volatile memory port, a universal serial bus (USB) port, an audio jack, and a power supply interface.
  • the sensor 770 may include one or more sensing devices to determine environmental conditions and/or location information related to the system.
  • the sensors may include, but are not limited to, a gyro sensor, an accelerometer, a proximity sensor, an ambient light sensor, and a positioning unit.
  • the positioning unit may also be part of, or interact with, the baseband circuitry and/or RF circuitry to communicate with components of a positioning network, e.g., a global positioning system (GPS) satellite.
  • GPS global positioning system
  • the display 750 may include a display, such as a liquid crystal display and a touch screen display.
  • the system 700 may be a mobile computing device such as, but not limited to, a laptop computing device, a tablet computing device, a netbook, an ultrabook, a smartphone, an AR/VR glasses, etc.
  • system may have more or less components, and/or different architectures.
  • methods described herein may be implemented as a computer program.
  • the computer program may be stored on a storage medium, such as a non-transitory storage medium.
  • the units as separating components for explanation are or are not physically separated.
  • the units for display are or are not physical units, that is, located in one place or distributed on a plurality of network units. Some or all of the units are used according to the purposes of the embodiments.
  • each of the functional units in each of the embodiments can be integrated in one processing unit, physically independent, or integrated in one processing unit with two or more than two units.
  • the software function unit is realized and used and sold as a product, it can be stored in a readable storage medium in a computer.
  • the technical plan proposed by the present disclosure can be essentially or partially realized as the form of a software product.
  • one part of the technical plan beneficial to the conventional technology can be realized as the form of a software product.
  • the software product in the computer is stored in a storage medium, including a plurality of commands for a computational device (such as a personal computer, a server, or a network device) to run all or some of the steps disclosed by the embodiments of the present disclosure.
  • the storage medium includes a USB disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a floppy disk, or other kinds of media capable of storing program codes.

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

Abstract

Un appareil et un procédé de communication sans fil sont décrits. Le procédé par un équipement utilisateur (UE) consiste à configurer, par une station de base, une réception d'un premier canal partagé de liaison descendante physique (PDSCH) et une réception d'un second PDSCH, le premier PDSCH étant associé à un premier type de processus de demande de répétition automatique hybride (HARQ), le second PDSCH étant associé à un second type de processus HARQ, et au moins l'un du premier type de processus HARQ et du second type de processus HARQ comprenant un type désactivé de rétroaction HARQ, et à configurer, par la station de base, une première ressource associée au premier PDSCH et une seconde ressource associée au second PDSCH, un emplacement de la seconde ressource suivant une condition par rapport à un emplacement de la première ressource.
PCT/IB2021/000933 2021-12-13 2021-12-13 Appareil et procédé de communication sans fil Ceased WO2023111616A1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021064681A1 (fr) * 2019-10-04 2021-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Construction de répertoires de codes harq avec activation/désactivation de rétroaction par processus de harq

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021064681A1 (fr) * 2019-10-04 2021-04-08 Telefonaktiebolaget Lm Ericsson (Publ) Construction de répertoires de codes harq avec activation/désactivation de rétroaction par processus de harq

Non-Patent Citations (1)

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Title
SONY: "Discussion on delay-tolerant HARQ for NTN", vol. RAN WG1, no. Chongqing, China; 20191014 - 20191020, 4 October 2019 (2019-10-04), XP051808697, Retrieved from the Internet <URL:https://ftp.3gpp.org/tsg_ran/WG1_RL1/TSGR1_98b/Docs/R1-1910748.zip R1-1910748_7.2.5.4_Discussion on HARQ_final.docx> [retrieved on 20191004] *

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