WO2022017342A1 - Procédé et appareil de transmission de liaison montante, et dispositf - Google Patents

Procédé et appareil de transmission de liaison montante, et dispositf Download PDF

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Publication number
WO2022017342A1
WO2022017342A1 PCT/CN2021/107230 CN2021107230W WO2022017342A1 WO 2022017342 A1 WO2022017342 A1 WO 2022017342A1 CN 2021107230 W CN2021107230 W CN 2021107230W WO 2022017342 A1 WO2022017342 A1 WO 2022017342A1
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Prior art keywords
uplink
uplink control
uplink shared
shared channel
control channel
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English (en)
Chinese (zh)
Inventor
陈晓航
潘学明
李娜
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference

Definitions

  • the present application belongs to the field of communication technologies, and in particular relates to an uplink transmission method, apparatus and device.
  • the uplink shared channel of the terminal device eg, physical uplink shared channel (PUSCH)
  • PUSCH physical uplink shared channel
  • the UL skipping function will allow the user to ignore the base station's scheduling and not perform uplink transmission.
  • the MAC layer when the UL skipping function is enabled on the uplink shared channel of the terminal device, if the time domain resources of the uplink control channel (eg, physical uplink control channel (PUCCH)) and the dynamic scheduling The time domain resources of the uplink shared channel have resource conflicts. Since there may be no data to be sent on the PUSCH, the MAC layer generates PDUs based on whether there is data, and cannot generate PDUs based on whether there is UCI to be multiplexed.
  • the uplink control channel eg, physical uplink control channel (PUCCH)
  • PUCCH physical uplink control channel
  • the purpose of the embodiments of the present application is to provide an uplink transmission method, apparatus, and device, so that the MAC layer can generate PDUs based on whether there is UCI to be multiplexed.
  • an uplink transmission method is provided, which is applied to a terminal device.
  • the method includes: in the case where the above-mentioned terminal device enables the uplink transmission skip function, if the time domain resources of at least one uplink shared channel are different from at least one The time domain resources of the uplink control channel overlap, and the MAC layer generates a MAC PDU according to any one of the following processing methods: If the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the above-mentioned time domain resources of the uplink control channel, then generate a MAC PDU. MAC PDU; according to the multiplexing information notified to the MAC layer by the physical layer, a MAC PDU is generated; wherein, the at least one uplink control channel carries at least one uplink control information.
  • an uplink transmission apparatus includes: an execution module configured to, in the case that the uplink transmission skip function is enabled on the above-mentioned terminal equipment, if the time domain resources of at least one uplink shared channel are different from the time domain resources of at least one uplink shared channel The time domain resources of the uplink control channel overlap, and the MAC layer generates a MAC PDU according to any one of the following processing methods: If the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the above-mentioned time domain resources of the uplink control channel, then generate a MAC PDU. MAC PDU; according to the multiplexing information notified to the MAC layer by the physical layer, a MAC PDU is generated; wherein, the at least one uplink control channel carries at least one uplink control information.
  • a terminal device in a third aspect, includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, the program or instruction being executed by the processor When executed, the steps of the method as described in the first aspect are implemented.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a fifth aspect provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a network-side device program or instruction, implementing the method described in the first aspect. method described.
  • a program product is provided, the program product is stored in a non-volatile storage medium, the program product is configured to be executed by at least one processor to implement the method of the first aspect above.
  • the MAC layer when the terminal device enables the uplink transmission skip function, if the time domain resources of at least one uplink shared channel overlap with the time domain resources of at least one uplink control channel, the MAC layer can follow the Any one of the following processing methods is used to generate a MAC PDU: Method 1, if the MAC layer knows that the time domain resources of the above-mentioned uplink shared channel overlap with the time domain resources of the above-mentioned uplink control channel, then generate a MAC PDU; Method 2, according to the physical layer notification to The multiplexing information of the MAC layer generates a MAC PDU; wherein, the at least one uplink control channel carries at least one uplink control information.
  • the MAC PDU can be generated through the MAC layer, so that the terminal device can support the uplink control information carried on the uplink control channel even in the absence of data transmission. It is multiplexed onto the uplink shared channel with the uplink transmission skip function enabled, so that the network side device can accurately determine the resources of the uplink control channel multiplexing without blind detection of two hypotheses, which reduces the blind detection on the network side.
  • the complexity of the system improves the energy efficiency of system communication.
  • FIG. 1 is a system architecture diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a method flowchart of an uplink transmission method provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of an uplink transmission apparatus provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present application.
  • the main scenarios of 5G include enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable and low latency communications (URLLC), These scenarios require high reliability, low latency, large bandwidth, and wide coverage for mobile communication systems.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low latency communications
  • the UE can support different services, for example, the UE supports not only the URLLC service with low latency and high reliability, but also the eMBB service with large capacity and high speed.
  • new radio technology new radio, NR
  • NR new radio technology
  • the single-carrier characteristic of the UE will be destroyed, and the difference of the transmit power will cause the deterioration of the channel estimation performance. This situation is usually regarded as a conflict, and a corresponding conflict resolution needs to be designed, merging or discarding some information.
  • the uplink control channel includes: physical uplink control channel (physical uplink control channel, PUCCH).
  • the uplink shared channel includes: physical uplink shared channel (PUSCH).
  • PUSCH physical uplink shared channel
  • the UCI defined by the physical layer is multiplexed on the PUSCH
  • Uplink control information (eg, UCI) is transmitted on an uplink control channel (eg, PUCCH).
  • PUCCH uplink control channel
  • the terminal device is transmitting data on the uplink shared channel (eg, PUSCH)
  • the PUCCH and the PUSCH can be sent at the same time, that is, the UCI is reserved in the PUCCH.
  • this will increase the Cubic Metric; in addition, if the requirement of out-of-band transmission is to be met at a higher transmit power, and the PUSCH and PUCCH are transmitted simultaneously, the interval in the frequency domain is large (PUCCH is generally in transmitted at both ends of the frequency band), which will pose challenges for radio frequency (RF) implementation.
  • RF radio frequency
  • the base station will ensure that the conditions of the UCI multiplexing processing time are met when scheduling the PUSCH, the UCI will be multiplexed with the data on the PUSCH. above, avoid sending PUCCH at the same time.
  • PUCCH group within a PUCCH group (PUCCH group), no matter whether PUCCH and PUSCH are in the same serving cell or in different serving cells, simultaneous transmission of PUCCH and PUSCH is not supported.
  • PUCCH and PUSCH time domain resources overlap including partial time domain resource overlap and all time domain resource overlap
  • the UE will discard or combine according to corresponding rules under the condition that certain time requirements are met.
  • the UE discards the PUSCH and transmits the SR PUCCH. Or the UE multiplexes the uplink control information (uplink control information, UCI) (except SR) carried on the PUCCH into the PUSCH for transmission. For example, if the PUCCH 1 and PUSCH 2 carrying the hybrid automatic repeat request acknowledgement (HARQ-ACK) or the channel state information (CSI) overlap, the UE will ACK/CSI is multiplexed into PUSCH 2 for transmission.
  • uplink control information uplink control information, UCI
  • HARQ-ACK hybrid automatic repeat request acknowledgement
  • CSI channel state information
  • the UE first processes the time-domain resource overlap between multiple PUCCHs (if any), and the result of the processing is one or more PUCCHs with non-time-domain resources overlapping, and then the UE processes the time-domain resources between the PUCCH and the PUSCH.
  • Overlapping if the PUCCH only overlaps with one PUSCH, the UE multiplexes the UCI (excluding the SR) in the PUSCH. If the PUCCH only overlaps with multiple PUSCHs, the UE selects a PUSCH according to the multiplexing rules in the related art. Multiplexing, the first multiplexing rule (that is, instructing the UE to select the PUSCH for multiplexing UCI) is as follows:
  • Rule 1 PUSCH carrying aperiodic channel state information (Aperiodic CSI, A-CSI).
  • Rule 2 The PUSCH with the earliest start slot.
  • the physical layer priority of the PUCCH is determined by the priority of the UCI carried by the PUCCH.
  • the priority of SR is configured through radio resource control (RRC)
  • the priority of periodic CSI and semi-persistent CSI (SP-CSI) is predefined as low priority
  • the priority of HARQ-ACK is determined by its corresponding DCI Indicated or determined according to the configuration of semi-persistent scheduling (SPS).
  • the transmission priority of the PUSCH is indicated by the scheduling downlink control information (DCI) corresponding to the PUSCH, or for the PUSCH with the configuration grant, the priority is configured by the RRC.
  • DCI scheduling downlink control information
  • the UE When the time domain resources of PUCCH and PUCCH overlap or the time domain resources of PUCCH and PUSCH overlap, the UE first processes transmissions with the same priority (the rules are the same as R15), and then processes transmissions with different priorities. When a certain time requirement is met, the UE cancels transmission (or is called discarding) the uplink resources of low priority and transmits uplink resources of high priority.
  • the MAC layer defines the process that the terminal implements uplink transmission skipping (UL skipping) in the protocol TS38.321.
  • the MAC entity will not generate a MAC PDU for the HARQ entity if the following conditions are met:
  • Condition 1 If the MAC entity is configured with the parameter skipUplinkTxDynamic and the value of this parameter is set to true (true), the MAC locates the HARQ entity indicated in the uplink grant (UL grant).
  • the MAC PDU includes zero MAC SDUs.
  • the MAC PDU contains only periodic Buffer Status Reports (BSRs) and no data is available for any Logical Channel Group (LCG), or the MAC PDUs contain only padding BSRs.
  • BSRs Buffer Status Reports
  • the MAC layer when the UL skipping function is enabled on the uplink shared channel of the terminal device, if there is a resource conflict between the time domain resources of the uplink control channel (eg, PUCCH) and the time domain resources of the dynamically scheduled uplink shared channel, Since the PUSCH may not have data to be sent, the MAC layer generates PDUs based on whether there is data or not, and cannot generate PDUs based on whether there is UCI to be multiplexed.
  • the uplink control channel eg, PUCCH
  • the terminal device may choose not to generate the PUSCH, so that the uplink control information (such as, UCI) is transmitted on the PUCCH, and the PUSCH can also be selected to be generated, so that the uplink control information is multiplexed and transmitted on the PUSCH.
  • the uplink control information such as, UCI
  • the resources multiplexed by the UCI cannot be determined on the network side, and the network side cannot receive the UCI accurately.
  • the network side equipment needs to perform blind detection on each carrier based on the two assumptions of whether the uplink control information is multiplexed in the PUSCH of the carrier, which will increase the complexity of the network side blind detection, which is a problem for the network side. cause a greater burden.
  • the embodiments of the present application provide an uplink transmission method, apparatus, and device.
  • the terminal device enables the uplink transmission skip function
  • the time domain resources of at least one uplink shared channel are different from the time domain resources of at least one uplink transmission
  • the time domain resources of the control channel overlap, and the MAC layer can generate a MAC PDU according to any one of the following processing methods: Mode 1, if the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the above-mentioned time domain resources of the uplink control channel , then the MAC PDU is generated; in mode 2, the MAC PDU is generated according to the multiplexing information notified to the MAC layer by the physical layer; wherein, at least one uplink control information is carried on the at least one uplink control channel.
  • the MAC PDU can be generated through the MAC layer, so that the terminal device can support the uplink control information carried on the uplink control channel even in the absence of data transmission. It is multiplexed onto the uplink shared channel with the uplink transmission skip function enabled, so that the network side device can accurately determine the resources of the uplink control channel multiplexing without blind detection of two hypotheses, which reduces the blind detection on the network side.
  • the complexity of the system improves the energy efficiency of system communication.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
  • the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • An uplink transmission method provided by an embodiment of the present application can be applied to a terminal device, in other words, the uplink transmission method can be executed by software or hardware installed in the terminal device.
  • the data transmission method provided in this embodiment of the present application may include the following step 201.
  • Step 201 In the case where the terminal device enables the uplink transmission skip function, if the time domain resources of at least one uplink shared channel overlap with the time domain resources of at least one uplink control channel, the MAC layer is processed according to any one of the following: mode to generate a MAC PDU.
  • the first processing method when the terminal device enables the uplink transmission skip function, if the time domain resources of at least one uplink shared channel overlap with the time domain resources of at least one uplink control channel, and if the MAC layer knows the above When the time domain resources of at least one uplink shared channel overlap with the time domain resources of the at least one uplink control channel, a MAC PDU is generated at the MAC layer.
  • the second processing method The MAC layer (or Layer 2, Layer 2) generates MAC PDUs according to the multiplexing information notified to the MAC layer by the physical layer (or Layer 1, Layer 1).
  • the at least one uplink control channel carries at least one uplink control information.
  • the at least one uplink shared channel is located on one or more carriers.
  • the overlapping of the time domain resources of the at least one uplink shared channel and the time domain resources of the at least one uplink control channel means that there is a time conflict between the at least one uplink shared channel and the at least one uplink control channel.
  • the above-mentioned time domain resource may be one or more time slots/subslots/symbols/subframes.
  • the fact that the terminal device enables the uplink transmission skip function can be considered as the terminal device enables the uplink transmission skip function of the uplink shared channel.
  • uplink control information such as UCI
  • the above multiplexing information may be used to indicate that the time domain resources of the at least one uplink shared channel overlap with the time domain resources of the at least one uplink control channel.
  • the foregoing multiplexing information may also be used to indicate a target uplink shared channel.
  • the at least one uplink shared channel is an uplink shared channel used to carry the uplink control information of the at least one uplink control channel.
  • the MAC layer may not need the physical layer to notify that there is currently a conflict between the uplink control channel and the above-mentioned shared channel, and the MAC layer only needs to directly generate the MAC PDU according to the multiplexing information notified by the physical layer.
  • the foregoing multiplexing information is used to indicate at least one of the following:
  • the target uplink control channel used to carry the uplink control information of the at least one uplink control channel
  • the target uplink shared channel used to carry the uplink control information of the at least one uplink control channel
  • the target uplink shared channel may be one or multiple, and the target uplink control channel may be one or multiple, which is not limited in the embodiment of the present application.
  • the above multiplexing information may be notified by the physical layer to the MAC layer when the terminal device receives a scheduling grant (downlink scheduling grant or uplink scheduling grant).
  • the scheduling grant is a downlink scheduling grant
  • the downlink scheduling grant is DCI for scheduling part or all of the uplink control channels in the at least one uplink control channel.
  • the downlink scheduling grant is the latest (latest) DCI for scheduling the above-mentioned one or more PUCCHs carrying UCI.
  • the above-mentioned scheduling grant is an uplink scheduling grant
  • the above-mentioned uplink scheduling grant is a DCI for scheduling part or all of the above-mentioned at least one uplink shared channel, or the above-mentioned
  • the uplink shared channel scheduled by the uplink scheduling grant overlaps with the at least one uplink control channel in one time unit.
  • the above-mentioned uplink scheduling grant is the DCI for scheduling part or all of the above-mentioned at least one uplink shared channel
  • the above-mentioned uplink scheduling grant is the DCI for scheduling the PUSCH on the PCell.
  • the above-mentioned time unit may be: a subframe, a time slot, a sub-slot (sub-slot), a symbol, and the like.
  • the terminal device when the terminal device receives the end time slot or symbol of the DCI of the scheduling grant, the physical layer notifies the MAC layer; or, the terminal device receives X time units after the end time slot or symbol of the DCI of the scheduling grant. , notified by the physical layer to the MAC layer.
  • the above-mentioned X is a predefined or network configuration or is related to the capability of the UE, and further, X may be the processing time of the downlink control channel (PDCCH).
  • PDCH downlink control channel
  • the process of generating the MAC PDU by the terminal device in the foregoing step 201 may further include the following step 201a:
  • Step 201a Generate a MAC PDU and transmit the MAC PDU on the target uplink shared channel.
  • the above-mentioned target uplink shared channel is: among the at least one uplink shared channel, an uplink shared channel used to carry the uplink control information of the at least one uplink control channel.
  • a MAC padding PDU (MAC padding PDU) is generated.
  • the terminal device has no data, specifically, there is no data in the logical channel group (Logical channel group) corresponding to the PUSCH.
  • the MAC layer when the MAC layer generates a MAC PDU for the at least one PUSCH according to the multiplexing information, when there is no UL-SCH on any PUSCH, the MAC generates a MAC padding PDU.
  • the MAC layer when the MAC layer generates the MAC PDU according to the multiplexing information, if there is no UL-SCH or no data on the target PUSCH, the MAC layer generates the MAC padding PDU.
  • the uplink transmission method provided by the embodiment of the present application may further include the following step A1:
  • Step A1 On the target carrier, the above-mentioned uplink transmission skip function is prohibited from being enabled.
  • the above-mentioned target carrier is: the carrier where the uplink shared channel overlaps with the time domain resource of the uplink control channel.
  • the UE when at least one PUCCH and PUSCH overlap in time, the UE disables the PUSCH UL skipping function. Further, on the carrier where the PUSCH conflicting with the PUCCH is located, the PUSCH UL skipping function is prohibited from being enabled.
  • the uplink transmission method provided by the embodiment of the present application may further include the following step B1 or step B2 or step B3:
  • Step B1 When the at least one uplink control channel includes multiple uplink control channels, the physical layer or the MAC layer determines the target uplink control channel from the multiple uplink control channels according to the first multiplexing rule.
  • Step B2 When the at least one uplink shared channel includes multiple uplink shared channels, the physical layer or the MAC layer determines the target uplink shared channel from the plurality of uplink shared channels according to the second multiplexing rule.
  • Step B3 In the case that the at least one uplink shared channel includes multiple uplink shared channels, and the time domain resources of the target uplink control channel overlap with the time domain resources of the multiple uplink shared channels, the physical layer or the MAC layer is based on the first step.
  • the two multiplexing rules and the above-mentioned target uplink control channel determine the above-mentioned target uplink shared channel from the above-mentioned multiple uplink shared channels.
  • the above-mentioned first multiplexing rule may be a PUCCH multiplexing rule of UCI on PUCCH.
  • the multiplexing rule of HARQ-ACK on PUCCH and the multiplexing rule of Scheduling request (SR) on PUCCH are shown in Table 1 below:
  • PF0 in the above table is PUCCH Format 1
  • PF1 in the above table is PUCCH Format 1
  • PF2/3/4 in the above table is PUCCH Format 2/3/4.
  • SR and CSI are transmitted on the PUCCH of CSI, [log2(K+1)] bits are preset before the periodic/semi-static CSI information bits, and indicate the corresponding SR status in the SR resource Id in ascending order (active or inactive).
  • HARQ-ACK/SR/CSI If HARQ-ACK is feedback to PDSCH without PDCCH scheduling, HARQ-ACK or HARQ-ACK+SR will be multiplexed on CSI PUCCH for transmission.
  • the PUCCH is a PUCCH determined in multiple resource sets configured by RRC based on HARQ-ACK, CSI and SR bits.
  • the target uplink shared channel is determined based on at least one of the following: of:
  • the physical layer notifies the MAC layer to multiplex the uplink control information on the target uplink shared channel
  • the physical layer notifies the MAC layer whether each of the multiple uplink shared channels multiplexes the uplink control information.
  • the PHY layer needs to determine the target PUSCH carrying the UCI according to the second multiplexing rule.
  • the specific multiplexing methods include: multiplexing mode 1: the target PUSCH is the PUSCH with the earliest start time among the multiple PUSCHs on the carrier; multiplexing mode 2: the target PUSCH is the triggering aperiodic among multiple PUSCHs on the carrier PUSCH for CSI reporting (Aperiodic-CSI, A-CSI).
  • the above-mentioned target uplink shared channel satisfies at least one of the following:
  • the above-mentioned first carrier is a carrier whose number satisfies a predetermined condition (for example, the number is the smallest) among the above-mentioned multiple carriers;
  • the above-mentioned second carrier is an uplink scheduled carrier among the above-mentioned multiple carriers and whose number satisfies the above-mentioned predetermined condition;
  • the above-mentioned third carrier is a carrier for which aperiodic CSI reporting is triggered and whose number satisfies the above-mentioned predetermined condition among the above-mentioned multiple carriers.
  • the PHY layer needs to determine the target PUSCH carrying the UCI and the carrier where the target PUSCH is located according to the second multiplexing rule.
  • the multiplexing methods include: multiplexing mode 1: the target PUSCH is the PUSCH with the earliest start time among the multiple PUSCHs on the carrier with the smallest number; multiplexing mode 2: the target PUSCH is the multiple PUSCHs on the carrier with the smallest number The PUSCH that triggers aperiodic CSI reporting (Aperiodic-CSI, A-CSI) in the PUSCH; Multiplexing Mode 3: The target PUSCH is the PUSCH of the carrier with the smallest number that is scheduled by dynamic UL among multiple carriers; Multiplexing Mode 4: The target PUSCH is the PUSCH of the carrier with the lowest number that triggers aperiodic CSI reporting among multiple carriers.
  • the MAC layer or the physical layer will determine the target uplink shared channel according to the second multiplexing rule.
  • the MAC layer when the PHY layer notifies the MAC layer that the target PUCCH collides with the above at least one PUSCH, the MAC layer will determine the target PUSCH carrying the UCI according to the above-mentioned multiplexing rules of the target PUCCH and UCI on PUSCH.
  • the embodiment of the present application may further include the following step C1:
  • Step C1 The MAC layer determines a target uplink shared channel from the at least one uplink shared channel according to the second multiplexing rule.
  • the MAC layer determines the target PUCCH carrying these one or more UCIs according to the second multiplexing rule (that is, the PUCCH multiplexing rule of UCI on PUSCH), if the above When the target PUCCH collides with at least one PUSCH, the MAC layer determines the target PUSCH bearing the UCI according to the target PUCCH and the second multiplexing rule.
  • the second multiplexing rule that is, the PUCCH multiplexing rule of UCI on PUSCH
  • the MAC layer determines the target PUSCH used to carry the UCI and where the target PUSCH is located according to the second multiplexing rule. carrier.
  • the MAC layer determines, according to the first multiplexing rule (that is, the PUCCH multiplexing rule of UCI on PUCCH), the target PUCCH that carries these one or more UCIs. .
  • the MAC layer if the MAC layer knows that one or more PUCCHs carrying UCI are in conflict with at least one PUSCH on one or more carriers, and when there is no UL-SCH on the target PUSCH, the MAC generates a MAC padding PDU.
  • the uplink transmission method provided by the embodiment of the present application is explained below by taking the uplink shared channel as the PUSCH and the uplink control channel as the PUCCH as an example, and using three examples.
  • the UE can determine the transmission of UCI according to the following steps:
  • Step 11 Decode DL grant and/or UL grant.
  • Step 12 If there are multiple PUCCHs, the PHY layer determines the resources of the target PUCCH bearing UCI according to the multiplexing rule of UCI on PUCCH.
  • Step 13 If the target PUCCH resource collides with at least one PUSCH on the above-mentioned one or more carriers, the PHY layer determines the target PUSCH resource for carrying UCI according to the UCI on PUSCH multiplexing priority in at least one PUSCH .
  • Step 14 The PHY layer notifies the MAC layer of the UCI multiplexing information (that is, the content in step 13), and the MAC generates a MAC PDU according to the UCI multiplexing information.
  • Step 15 If there is no UL-SCH, the MAC layer generates a padding PDU.
  • Step 16 Perform UCI mapping on the target PUSCH.
  • Step 17 Perform (padding) data mapping on the target PUSCH.
  • Step 16 may be executed first and then step 17 (that is, the UCI mapping is performed first, and the data mapping is performed later), or the execution may be performed first.
  • step 17 Execute 16 again (that is, perform data mapping first, and then perform UCI mapping).
  • the UE determines the transmission of UCI according to the following steps:
  • Step 21 Decode DL grant and/or UL grant.
  • Step 22 If there are multiple PUCCHs, the PHY layer determines the resource of the target PUCCH bearing UCI according to the multiplexing rule of UCI on PUCCH.
  • Step 23 The PHY layer notifies the MAC layer of the UCI multiplexing information (that is, the content in step 12), and the MAC layer generates a MAC PDU according to the UCI multiplexing information.
  • Step 24 If the target PUCCH resource collides with at least one PUSCH on one or more carriers, the MAC layer determines the target PUSCH resource for carrying UCI in at least one PUSCH according to the UCI on PUSCH multiplexing rule.
  • Step 25 The MAC generates a PDU for the target PUSCH, and generates a padding PDU if there is no UL-SCH.
  • Step 26 Perform UCI mapping on the target PUSCH.
  • Step 27 Perform (padding) data mapping on the target PUSCH.
  • Step 26 may be executed first and then step 27 (that is, the UCI mapping is performed first, and then the data mapping is performed), or the execution may be performed first.
  • step 27 and then execute 26 that is, first perform data mapping, and then perform UCI mapping).
  • the UE determines the transmission of UCI according to the following steps:
  • Step 31 Decode DL grant and/or UL grant.
  • Step 32 After step 31, the PHY layer notifies the MAC layer that the one or more PUCCHs carrying the UCI collide with at least one PUSCH on the one or more carriers.
  • Step 33 The MAC generates a MAC PDU for the first PUSCH (set) in conflict according to the UCI multiplexing information.
  • Step 34 If there is no UL-SCH, the MAC generates a padding PDU.
  • Step 35 If there are multiple PUCCHs, the PHY layer determines the resource of the target PUCCH bearing UCI according to the multiplexing rule of UCI on PUCCH.
  • Step 36 If the target PUCCH resource collides with at least one PUSCH on one or more carriers, the PHY layer determines the target PUSCH resource for carrying UCI in at least one PUSCH according to the UCI on PUSCH multiplexing rule.
  • Step 37 If the target PUSCH has UL-SCH, perform UCI and data (data) mapping on the target PUSCH.
  • Step 38 Otherwise, perform UCI and padding data mapping on the target PUSCH.
  • Step 39 If the target PUSCH does not belong to the first PUSCH (set), perform (padding) data mapping on the first PUSCH (set).
  • Step 40 If one PUSCH in the first PUSCH (set) has no data, perform mapping of padding data.
  • the UCI mapping may be performed first, and then the data mapping may be performed, or the data mapping may be performed first, and then the UCI mapping may be performed.
  • the MAC address The layer can generate a MAC PDU according to any one of the following processing methods: Method 1, if the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the time domain resources of the above-mentioned uplink control channel, then generate a MAC PDU; Method 2, according to the physical The multiplexing information notified to the MAC layer by the layer to generate a MAC PDU; wherein, at least one uplink control information is carried on the at least one uplink control channel.
  • the MAC PDU can be generated through the MAC layer, so that the terminal device can support the uplink control information carried on the uplink control channel even in the absence of data transmission. It is multiplexed onto the uplink shared channel with the uplink transmission skip function enabled, so that the network side device can accurately determine the resources of the uplink control channel multiplexing without blind detection of two hypotheses, which reduces the blind detection on the network side.
  • the complexity of the system improves the energy efficiency of system communication.
  • the execution body may be an uplink transmission apparatus, or a control module in the uplink transmission apparatus for executing the uplink transmission method.
  • the uplink transmission method performed by the uplink transmission apparatus is taken as an example to describe the apparatus of the uplink transmission method provided by the embodiments of the present application.
  • an uplink transmission apparatus 300 provided by an embodiment of the present application may include: an execution module 301, wherein:
  • the execution module 301 is used for, in the case that the above-mentioned terminal device enables the uplink transmission skip function, if the time domain resources of at least one uplink shared channel overlap with the time domain resources of at least one uplink control channel, then the MAC layer performs the following steps: Any processing method generates a MAC PDU: if the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the time domain resources of the above-mentioned uplink control channel, then generate a MAC PDU; According to the multiplexing information notified to the MAC layer by the physical layer, A MAC PDU is generated; wherein, the at least one uplink control channel carries at least one uplink control information.
  • the multiplexing information is used to indicate that the time domain resources of the at least one uplink shared channel overlap with the time domain resources of the at least one uplink control channel.
  • the at least one uplink shared channel is located on one or more carriers.
  • the above multiplexing information is used to indicate at least one of the following: in the above at least one uplink control channel, the target uplink control channel used to carry the uplink control information of the above at least one uplink control channel; In the at least one uplink shared channel, the target uplink shared channel used to carry the uplink control information of the at least one uplink control channel; the at least one uplink shared channel; and the at least one uplink control channel.
  • the above-mentioned execution module 301 is further configured to: in the case that the above-mentioned at least one uplink control channel includes multiple uplink control channels, at the physical layer or the MAC layer according to the first multiplexing rule, The target uplink control channel is determined from the plurality of uplink control channels; or, in the case that the at least one uplink shared channel includes a plurality of uplink shared channels, the physical layer or the MAC layer, according to the second multiplexing rule, selects the target uplink control channel from the above-mentioned at least one uplink shared channel.
  • the target uplink shared channel is determined from a plurality of uplink shared channels; or, the at least one uplink shared channel includes a plurality of uplink shared channels, the time domain resources of the target uplink control channel, and the time domain resources of the plurality of uplink shared channels
  • the physical layer or the MAC layer determines the target uplink shared channel from the plurality of uplink shared channels according to the second multiplexing rule and the target uplink control channel.
  • the above-mentioned multiplexing information is notified to the MAC layer by the physical layer when the above-mentioned terminal device receives the scheduling grant.
  • the above-mentioned scheduling grant is a downlink scheduling grant
  • the above-mentioned downlink scheduling grant is the DCI for scheduling the above-mentioned uplink control channel
  • the above-mentioned scheduling grant is an uplink scheduling grant
  • the above-mentioned uplink The scheduling grant is the DCI for scheduling the uplink shared channel, or the uplink shared channel scheduled by the uplink scheduling grant overlaps with the at least one uplink control channel in one time unit.
  • the above-mentioned execution module 301 is further configured to: prohibit enabling the above-mentioned uplink transmission skip function on the target carrier; wherein, the above-mentioned target carrier is: the time domain with the above-mentioned uplink control channel The carrier where the uplink shared channel with overlapping resources is located.
  • the foregoing execution module 301 is further configured to: if the MAC layer learns that the time domain resources of the at least one uplink shared channel overlap with the time domain resources of the at least one uplink control channel, the MAC layer According to the second multiplexing rule, the target uplink shared channel is determined from the at least one uplink shared channel.
  • the above-mentioned apparatus 300 further includes: a transmission module 302, wherein: the transmission module 302 is configured to transmit the MAC PDU on the target uplink shared channel; wherein, the above-mentioned target
  • the uplink shared channel is: among the at least one uplink shared channel, an uplink shared channel used to carry the uplink control information of the at least one uplink control channel.
  • the MAC address The layer can generate a MAC PDU according to any one of the following processing methods: Method 1, if the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the time domain resources of the above-mentioned uplink control channel, then generate a MAC PDU; Method 2, according to the physical The multiplexing information notified to the MAC layer by the layer to generate a MAC PDU; wherein, at least one uplink control information is carried on the at least one uplink control channel.
  • the MAC PDU can be generated through the MAC layer, so that the terminal device can support the uplink control information carried on the uplink control channel even in the absence of data transmission. It is multiplexed onto the uplink shared channel with the uplink transmission skip function enabled, so that the network side device can accurately determine the resources of the uplink control channel multiplexing without blind detection of two hypotheses, which reduces the blind detection on the network side.
  • the complexity of the system improves the energy efficiency of system communication.
  • the uplink transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the uplink transmission device in the embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the uplink transmission apparatus provided in the embodiments of the present application can implement each process implemented by the foregoing method embodiments, and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • an embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, a program or instruction stored in the memory 402 and executable on the processor 401,
  • a communication device 400 including a processor 401, a memory 402, a program or instruction stored in the memory 402 and executable on the processor 401
  • the communication device 400 is a terminal device
  • the program or instruction is executed by the processor 401, each process of the above-mentioned embodiments of the uplink transmission method can be implemented, and the same technical effect can be achieved.
  • FIG. 5 is a schematic diagram of a hardware structure of a terminal device implementing an embodiment of the present application.
  • the terminal device 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110, etc. part.
  • the terminal device 100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, so as to manage charging, discharging, and power management through the power management system. consumption management and other functions.
  • a power source such as a battery
  • the structure of the terminal device shown in FIG. 5 does not constitute a limitation on the terminal device.
  • the terminal device may include more or less components than those shown in the figure, or combine some components, or arrange different components, which will not be repeated here. .
  • the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 107 includes a touch panel 1071 and other input devices 1072 .
  • the touch panel 1071 is also called a touch screen.
  • the touch panel 1071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 101 receives the downlink data from the network side device, and then processes it to the processor 110; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 109 may be used to store software programs or instructions as well as various data.
  • the memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 109 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 110 may include one or more processing units; optionally, the processor 110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 110 .
  • the processor 110 is configured to, in the case that the above-mentioned terminal device enables the uplink transmission skip function, if the time domain resources of at least one uplink shared channel overlap with the time domain resources of at least one uplink control channel, then at the MAC layer Generate a MAC PDU according to any of the following processing methods: if the MAC layer knows that the time domain resources of the above-mentioned uplink shared channel overlap with the time domain resources of the above-mentioned uplink control channel, then generate a MAC PDU; According to the multiplexing notified to the MAC layer by the physical layer information to generate a MAC PDU; wherein, the at least one uplink control channel carries at least one uplink control information.
  • the multiplexing information is used to indicate that the time domain resources of the at least one uplink shared channel overlap with the time domain resources of the at least one uplink control channel.
  • the at least one uplink shared channel is located on one or more carriers.
  • the foregoing multiplexing information is used to indicate at least one of the following:
  • the target uplink control channel used to carry the uplink control information of the at least one uplink control channel
  • the target uplink shared channel used to carry the uplink control information of the at least one uplink control channel
  • the above-mentioned processor 110 is further configured to: in the case that the above-mentioned at least one uplink control channel includes multiple uplink control channels, at the physical layer or the MAC layer according to the first multiplexing rule, The target uplink control channel is determined from the plurality of uplink control channels; or, in the case that the at least one uplink shared channel includes a plurality of uplink shared channels, the physical layer or the MAC layer, according to the second multiplexing rule, selects the target uplink control channel from the above-mentioned at least one uplink shared channel.
  • the target uplink shared channel is determined from a plurality of uplink shared channels; or, the at least one uplink shared channel includes a plurality of uplink shared channels, the time domain resources of the target uplink control channel, and the time domain resources of the plurality of uplink shared channels
  • the physical layer or the MAC layer determines the target uplink shared channel from the plurality of uplink shared channels according to the second multiplexing rule and the target uplink control channel.
  • the above-mentioned multiplexing information is notified to the MAC layer by the physical layer when the above-mentioned terminal device receives the scheduling grant.
  • the above-mentioned scheduling grant is a downlink scheduling grant
  • the above-mentioned downlink scheduling grant is the DCI for scheduling the above-mentioned uplink control channel
  • the above-mentioned scheduling grant is an uplink scheduling grant
  • the above-mentioned uplink The scheduling grant is the DCI for scheduling the uplink shared channel, or the uplink shared channel scheduled by the uplink scheduling grant and the uplink shared channel for carrying the uplink control information overlap in a time unit.
  • the above-mentioned processor 110 is further configured to: prohibit enabling the above-mentioned uplink transmission skip function on the target carrier; wherein, the above-mentioned target carrier is: the time domain with the above-mentioned uplink control channel The carrier where the uplink shared channel with overlapping resources is located.
  • the processor 110 is further configured to: if the MAC layer learns that the time domain resources of the at least one uplink shared channel overlap with the time domain resources of the at least one uplink control channel, the MAC layer According to the second multiplexing rule, the target uplink shared channel is determined from the at least one uplink shared channel.
  • the above-mentioned radio frequency unit 101 is used to transmit the MAC PDU on a target uplink shared channel; wherein, the above-mentioned target uplink shared channel is: the above-mentioned at least one uplink shared channel is used to carry the above-mentioned Uplink shared channel for uplink control information of at least one uplink control channel.
  • the MAC layer In the terminal device provided by the embodiment of the present application, in the case where the uplink transmission skip function is enabled on the terminal device, if the time domain resources of at least one uplink shared channel overlap with the time domain resources of at least one uplink control channel, the MAC layer The MAC PDU can be generated according to any one of the following processing methods: Mode 1, if the MAC layer learns that the time domain resources of the above-mentioned uplink shared channel overlap with the time domain resources of the above-mentioned uplink control channel, then the MAC PDU is generated; Mode 2, according to the physical layer The multiplexing information notified to the MAC layer generates a MAC PDU; wherein, at least one uplink control information is carried on the at least one uplink control channel.
  • the MAC PDU can be generated by the MAC layer, so that the terminal device can support the uplink control information carried on the uplink control channel even in the absence of data transmission. It is multiplexed onto the uplink shared channel with the uplink transmission skip function enabled, so that the network side device can accurately determine the resources of the uplink control channel multiplexing without blind detection of two hypotheses, which reduces the blind detection on the network side.
  • the complexity of the system improves the energy efficiency of system communication.
  • the embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing uplink transmission method embodiment can be achieved, and the same can be achieved. In order to avoid repetition, the technical effect will not be repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running network-side device programs or instructions to implement the above uplink transmission method. In order to avoid repetition, the details are not repeated here.
  • the embodiment of the present application further provides a program product, the program product is stored in a non-volatile storage medium, the program product is configured to be executed by at least one processor to implement each process of the uplink transmission method embodiment, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.
  • a storage medium such as ROM/RAM, magnetic disk, CD-ROM

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Abstract

Sont divulgués dans la présente demande un procédé et un appareil de transmission de liaison montante, et un dispositif. Le procédé fait appel aux étapes suivantes : lorsqu'un dispositif terminal active une fonction de saut de transmission de liaison montante, si une ressource de domaine temporel d'au moins un canal partagé de liaison montante chevauche une ressource de domaine temporel d'au moins un canal de commande de liaison montante, la génération d'une PDU MAC sur une couche MAC selon l'un quelconque des modes de traitement suivants : si la couche MAC apprend que la ressource de domaine temporel du canal partagé de liaison montante chevauche la ressource de domaine temporel du canal de commande de liaison montante, la génération de la PDU MAC; et la génération de la PDU MAC selon des informations de multiplexage notifiées par une couche physique à la couche MAC. L'au moins un canal de commande de liaison montante porte au moins un élément d'informations de commande de liaison montante.
PCT/CN2021/107230 2020-07-20 2021-07-20 Procédé et appareil de transmission de liaison montante, et dispositf Ceased WO2022017342A1 (fr)

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