WO2022186522A1 - Procédé et dispositif de gestion de faisceau de réception à base de dai dans un système de communication - Google Patents

Procédé et dispositif de gestion de faisceau de réception à base de dai dans un système de communication Download PDF

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Publication number
WO2022186522A1
WO2022186522A1 PCT/KR2022/002326 KR2022002326W WO2022186522A1 WO 2022186522 A1 WO2022186522 A1 WO 2022186522A1 KR 2022002326 W KR2022002326 W KR 2022002326W WO 2022186522 A1 WO2022186522 A1 WO 2022186522A1
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Prior art keywords
dai
processor
pdcch
received
value
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PCT/KR2022/002326
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English (en)
Korean (ko)
Inventor
윤수하
엔지분룽
박성철
정의창
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삼성전자 주식회사
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Publication of WO2022186522A1 publication Critical patent/WO2022186522A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • 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
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • 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
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • Various embodiments disclosed in this document relate to an apparatus for managing a reception beam for receiving a signal from a base station in a communication system, for example, to a DAI-based reception beam management apparatus.
  • a 5G communication system or a pre-5G communication system is called a system after a 4G network (Beyond 4G Network) communication system or a long term evolution (LTE) system after (Post LTE).
  • the 5G communication system is being considered for implementation in a very high frequency (mmWave) band (eg, such as a 60 gigabyte (60 GHz) band).
  • mmWave very high frequency
  • FD-MIMO Full Dimensional MIMO
  • array antenna analog beam-forming, and large scale antenna technologies are being discussed.
  • cloud radio access network cloud radio access network: cloud RAN
  • ultra-dense network ultra-dense network
  • D2D Device to Device communication
  • wireless backhaul moving network, cooperative communication, Coordinated Multi-Points (CoMP), and interference cancellation Technology development is underway.
  • CoMP Coordinated Multi-Points
  • ACM advanced coding modulation
  • FQAM Hybrid FSK and QAM Modulation
  • SWSC Small Cell Superposition Coding
  • FBMC Fan Bank Multi Carrier
  • NOMA non orthogonal multiple access
  • SCMA sparse code multiple access
  • IoT Internet of Things
  • IoE Internet of Everything
  • M2M Machine Type Communication
  • MTC Machine Type Communication
  • IoT an intelligent IT (Internet Technology) service that collects and analyzes data generated from connected objects and creates new values in human life can be provided.
  • IoT is a field of smart home, smart building, smart city, smart car or connected car, smart grid, health care, smart home appliance, advanced medical service, etc. can be applied to
  • 5G communication technology is implemented by techniques such as beam forming, MIMO, and array antenna.
  • cloud RAN cloud radio access network
  • Various embodiments disclosed in this document may provide an apparatus and method for managing a reception beam based on a downlink assignment index (DAI) received from a communication system.
  • DAI downlink assignment index
  • Various embodiments disclosed in this document provide an apparatus and method for estimating whether a physical downlink control channel (PDCCH) is received by monitoring DAI received through a plurality of cells in a communication system, and managing a reception beam based thereon.
  • PDCCH physical downlink control channel
  • An electronic device includes one or more antennas, a communication circuit, and a processor operatively connected to the communication circuit, wherein the processor is configured to control a downlink control channel of at least one serving cell.
  • the base station Based on the control region configuration, the base station monitors a physical downlink control channel (PDCCH) for a specified time, checks a downlink assignment index (DAI) field included in the received PDCCH as a result of the monitoring, and when a specified event occurs, the It may be configured to adjust at least some reception beams of the one or more antennas for at least a part of at least one serving cell.
  • PDCCH physical downlink control channel
  • DAI downlink assignment index
  • the method of the electronic device includes an operation of monitoring a physical downlink control channel (PDCCH) for a specified time from a base station based on a control region setting of a downlink control channel of at least one serving cell; Checking a downlink assignment index (DAI) field included in the received PDCCH as a result of the monitoring, and when a designated event occurs, at least a portion of the reception beam of the one or more antennas for at least a portion of the at least one serving cell may include an operation to adjust
  • PDCCH physical downlink control channel
  • DAI downlink assignment index
  • DAI downlink assignment index
  • the state of the reception beams for the plurality of cells can be efficiently monitored.
  • a PDCCH reception rate may be increased by managing a reception beam based on DAI received through a plurality of cells in a communication system, and based on this, more efficient data transmission/reception may be performed through a plurality of cells.
  • FIG. 1 is a diagram illustrating a structure of a next-generation mobile communication system according to various embodiments.
  • FIG. 2 is a diagram illustrating a radio protocol structure of a next-generation mobile communication system according to various embodiments of the present disclosure
  • CA carrier aggregation
  • FIG. 4 is a diagram illustrating an example of a cross-carrier scheduling method according to an embodiment of the present disclosure.
  • FIG. 5 is a diagram illustrating an example of setting a control resource set (CORESET) of a downlink control channel in a wireless communication system according to an embodiment of the present disclosure.
  • CORESET control resource set
  • FIG. 6 is a diagram illustrating a method of determining a DAI when scheduling a PDSCH for one cell through one PDCCH according to the present disclosure.
  • FIG. 7 is a block diagram of an electronic device in a network environment, according to various embodiments of the present disclosure.
  • FIG. 8 is a block diagram of an electronic device for supporting legacy network communication and 5G network communication according to various embodiments of the present disclosure
  • FIG. 9 shows an embodiment of the structure of the third antenna module described with reference to FIG. 8 according to various embodiments.
  • FIG. 10 is a flowchart of a DAI-based reception beam management method according to various embodiments.
  • FIG. 11 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • FIG. 12 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • FIG. 13 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • FIG. 14 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • 15 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • each block of the flowchart diagrams and combinations of the flowchart diagrams may be performed by computer program instructions.
  • These computer program instructions may be embodied in a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, such that the instructions performed by the processor of the computer or other programmable data processing equipment are not described in the flowchart block(s). It creates a means to perform functions.
  • These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory.
  • the instructions stored in the flowchart block(s) may also be possible for the instructions stored in the flowchart block(s) to produce an article of manufacture containing instruction means for performing the function described in the flowchart block(s).
  • the computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It may also be possible for instructions to perform the processing equipment to provide steps for performing the functions described in the flowchart block(s).
  • each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative implementations it is also possible for the functions recited in the blocks to occur out of order. For example, two blocks shown one after another may in fact be performed substantially simultaneously, or it may be possible that the blocks are sometimes performed in a reverse order according to a corresponding function.
  • ' ⁇ unit' used in this embodiment means software or hardware components such as FPGA (Field Programmable Gate Array) or ASIC (Application Specific Integrated Circuit), and ' ⁇ unit' performs certain roles do.
  • '-part' is not limited to software or hardware.
  • ' ⁇ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors.
  • ' ⁇ part' refers to components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and programs. Includes procedures, subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.
  • components and ' ⁇ units' may be combined into a smaller number of components and ' ⁇ units' or further separated into additional components and ' ⁇ units'.
  • components and ' ⁇ units' may be implemented to play one or more CPUs in a device or secure multimedia card.
  • ' ⁇ unit' may include one or more processors.
  • the base station is a subject performing resource allocation of the terminal, and may be at least one of a gNode B, an eNode B, a Node B, a base station (BS), a radio access unit, a base station controller, or a node on a network.
  • the terminal may include a user equipment (UE), a mobile station (MS), a cellular phone, a smart phone, a computer, or a multimedia system capable of performing a communication function.
  • UE user equipment
  • MS mobile station
  • a cellular phone a smart phone
  • computer or a multimedia system capable of performing a communication function.
  • the present disclosure describes a technique for a terminal to receive broadcast information from a base station in a wireless communication system.
  • the present disclosure relates to a communication technique that converges a 5th generation (5G) communication system for supporting a higher data rate after the 4th generation (4G) system with an Internet of Things (IoT) technology, and a system thereof.
  • the present disclosure provides intelligent services (eg, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail business, security and safety related services, etc.) based on 5G communication technology and IoT-related technology. ) can be applied to
  • Terms referring to, terms referring to messages, terms referring to components of an apparatus, and the like are exemplified for convenience of description. Accordingly, the present invention is not limited to the terms described below, and other terms having equivalent technical meanings may be used.
  • 3GPP LTE 3rd generation partnership project long term evolution
  • FIG. 1 is a diagram illustrating a structure of a next-generation mobile communication system according to various embodiments.
  • the radio access network of the next-generation mobile communication system is a next-generation base station (new radio node B, hereinafter, NR gNB or NR base station) 110 and a next-generation radio core network (new radio core network, NR CN) 105 .
  • a new radio user equipment (NR UE or terminal) 115 may access an external network through the NR gNB 110 and the NR CN 105 .
  • the NR gNB 110 may correspond to an evolved node B (eNB) of the existing LTE system.
  • the NR gNB is connected to the NR UE 115 through a radio channel, and can provide a more improved service than the existing Node B.
  • all user traffic may be serviced through a shared channel. Accordingly, an apparatus for scheduling by collecting status information such as buffer status, available transmission power status, and channel status of UEs is required, and the NR gNB 110 may be responsible for this.
  • One NR gNB can control multiple cells.
  • a bandwidth greater than or equal to the current maximum bandwidth may be applied to implement ultra-high-speed data transmission compared to current LTE.
  • beamforming technology may be additionally grafted by using orthogonal frequency division multiplexing (OFDM) as a radio access technology.
  • OFDM orthogonal frequency division multiplexing
  • AMC adaptive modulation & coding
  • the NR CN 105 may perform functions such as mobility support, bearer establishment, and QoS establishment.
  • the NR CN is a device in charge of various control functions as well as a mobility management function for the terminal, and may be connected to a plurality of base stations.
  • the next-generation mobile communication system may be interlocked with the existing LTE system, and the NR CN may be connected to the MME 125 through a network interface.
  • the MME may be connected to the existing base station eNB 130 .
  • FIG. 2 is a diagram illustrating a radio protocol structure of a next-generation mobile communication system according to various embodiments.
  • the radio protocol of the next-generation mobile communication system is NR service data adaptation protocol (SDAP) (201, 245) and NR PDCP (Packet Data Convergence Protocol) (205, respectively) in the terminal and the NR base station.
  • SDAP NR service data adaptation protocol
  • NR PDCP Packet Data Convergence Protocol
  • NR RLC Radio Link Control
  • NR MAC Medium Access Control
  • NR PHY NR PHY
  • the main functions of the NR SDAPs 201 and 245 may include at least some of the following functions.
  • the UE uses the header of the SDAP layer device for each PDCP layer device or for each bearer or for each logical channel as a radio resource control (RRC) message or whether to use the function of the SDAP layer device can be set.
  • RRC radio resource control
  • the terminal reflects the non-access stratum (NAS) quality of service (QoS) reflection setting 1-bit indicator (NAS reflective QoS) of the SDAP header and the access layer (access stratum, AS) QoS reflection As a set 1-bit indicator (AS reflective QoS), it can be instructed so that the UE can update or reconfigure mapping information for uplink and downlink QoS flows and data bearers.
  • the SDAP header may include QoS flow ID information indicating QoS.
  • the QoS information may be used as data processing priority, scheduling information, etc. to support a smooth service.
  • the main functions of the NR PDCPs 205 and 240 may include some of the following functions.
  • the reordering function of the NR PDCP device may refer to a function of reordering PDCP PDUs received from a lower layer in order based on a PDCP sequence number (SN).
  • the reordering function of the NR PDCP device may include a function of delivering data to a higher layer in the rearranged order, and may include a function of directly delivering data without considering the order, It may include a function of recording PDCP PDUs, a function of reporting a status on the lost PDCP PDUs to the transmitting side, and a function of requesting retransmission of the lost PDCP PDUs.
  • the main functions of the NR RLCs 210 and 235 may include some of the following functions.
  • in-sequence delivery of the NR RLC device may refer to a function of sequentially delivering RLC SDUs received from a lower layer to a higher layer.
  • the in-sequence delivery function of the NR RLC device may include a function of reassembling it and delivering it.
  • In-sequence delivery of the NR RLC device may include a function of rearranging the received RLC PDUs based on an RLC sequence number (SN) or a PDCP sequence number (SN), and may be lost by rearranging the order It may include a function of recording the lost RLC PDUs, a function of reporting a status on the lost RLC PDUs to the transmitting side, and a function of requesting retransmission of the lost RLC PDUs. have.
  • the in-sequence delivery function of the NR RLC (210, 235) device may include a function of sequentially delivering only RLC SDUs before the lost RLC SDU to a higher layer when there is a lost RLC SDU.
  • the in-sequence delivery function of the NR RLC device includes a function of sequentially delivering all RLC SDUs received before the timer starts to a higher layer if a predetermined timer expires even if there are lost RLC SDUs. can do.
  • the in-sequence delivery function of the NR RLC device may include a function of sequentially delivering all RLC SDUs received so far to a higher layer if a predetermined timer expires even if there are lost RLC SDUs. .
  • the NR RLC (210, 235) device may process the RLC PDUs in the order in which they are received, regardless of the sequence number (Out of sequence delivery), and deliver it to the NR PDCP (205, 240) device.
  • the NR RLC (210, 235) device When the NR RLC (210, 235) device receives a segment, it receives the segments stored in the buffer or to be received later, reconstructs it into one complete RLC PDU, and then delivers it to the NR PDCP device. have.
  • the NR RLC layer may not include a concatenation function, and may perform a function in the NR MAC layer or may be replaced with a multiplexing function of the NR MAC layer.
  • the out-of-sequence delivery function of the NR RLC device may refer to a function of directly delivering RLC SDUs received from a lower layer to a higher layer regardless of order.
  • the out-of-sequence delivery function of the NR RLC device may include a function of reassembling and delivering when one RLC SDU is originally divided into several RLC SDUs and received.
  • the out of sequence delivery function of the NR RLC device may include a function of storing the RLC SN or PDCP SN of the received RLC PDUs and arranging the order to record the lost RLC PDUs.
  • the NR MACs 215 and 230 may be connected to several NR RLC layer devices configured in one terminal, and the main function of the NR MAC may include some of the following functions.
  • the NR PHY layers 220 and 225 channel-code and modulate the upper layer data, make an OFDM symbol and transmit it to the radio channel, or demodulate the OFDM symbol received through the radio channel, decode the channel, and deliver the operation to the upper layer. can be done
  • CA carrier aggregation
  • a primary cell (PCell) and a secondary cell (SCell) may be configured in the UE as serving cells.
  • PCell is included in PCC (primary component carrier), RRC connection establishment/re-establishment, measurement, mobility procedure, random access procedure and selection, system information acquisition, initial random access, security key change and non-access stratum (NAS) function etc. can be provided.
  • PCC primary component carrier
  • RRC connection establishment/re-establishment measurement, mobility procedure, random access procedure and selection, system information acquisition, initial random access, security key change and non-access stratum (NAS) function etc.
  • the PCell Since the UE performs system information monitoring through the PCell, the PCell is not deactivated, and the PCC in the UL is carried through a physical uplink control channel (PUCCH) for transmitting control information.
  • PUCCH physical uplink control channel
  • only one RRC connection is possible between the UE and the PCell, and PDCCH/PDSCH/PUSCH (physical uplink shared channel)/PUCCH transmission is possible.
  • a spcell of a secondary cell group may be configured and operated as the PCell. The operation for the PCell described below may also be performed by the PSCell.
  • a maximum of 31 SCells can be added, and when additional radio resource provision is required, the SCell can be configured through an RRC message message (eg, dedicated signaling).
  • the RRC message may include a physical cell ID for each cell, and may include a DL carrier frequency (absolute radio frequency channel number: ARFCN).
  • ARFCN absolute radio frequency channel number
  • cross-carrier scheduling may be used to 'schedule the PDSCH or PUSCH for the PCell or PScell through the PDCCH of the SCell.
  • Cross-carrier scheduling may mean allocating at least one (eg, PDCCH) of all L1 control channels or L2 control channels for at least one other CC (component carrier) to one CC.
  • a carrier indicator field may be used to transmit data information of another CC through the PDCCH of one CC.
  • Resources (PDSCH, PUSCH) for data transmission of the CC or resources (PDSCH, PUSCH) for data transmission of another CC may be allocated through control information transmitted through the PDCCH of one CC.
  • a 3-bit CIF is added to the downlink control information (DCI) format by applying the cross-carrier scheduling, and the size of the bit is always fixed, and the size of the DCI format can also be fixed regardless of the location.
  • DCI downlink control information
  • DCI may include resource allocation information and other control information for the user terminal 115 or terminal group.
  • the DCI may include uplink or downlink scheduling information or an uplink transmission (Tx) power control command.
  • FIG. 4 is a diagram illustrating an example of a cross-carrier scheduling method according to an embodiment of the present disclosure.
  • PDSCH or PUSCH for two CCs may be scheduled through the PDCCH 401 of one CC.
  • the PDSCH or PUSCH of each CC may be scheduled using the PDCCHs 421 and 423 of the two CCs.
  • Each CC may be mapped to a CI (carrier indicator) value for CIF application, which may be transmitted from the base station to the terminal through a dedicated RRC signal as a UE-specific configuration.
  • CI carrier indicator
  • Each PDSCH/PUSCH CC may be scheduled from one DL CC. Accordingly, the UE only needs to monitor the PDCCH for the DL CC for each PDSCH/PUSCH CC.
  • the UE may monitor the PDCCH in the DL CC to obtain PUSCH scheduling information in the linked UL carrier.
  • the UE may monitor the PDCCH in the DL CC to obtain PDSCH scheduling information in the linked DL carrier.
  • a method for improving cross-carrier scheduling is required in order to improve the scheduling capacity shortage problem, and for this, a method of scheduling PDSCHs for a plurality of cells through one PDCCH may be considered.
  • the number of cells that can be configured through the PDCCH may be set to a maximum of two, but this is only an example of the present disclosure and the number of cells that can be configured through the PDCCH may be changed.
  • the present disclosure can be applied to dynamic spectrum sharing (DSS) that enables a carrier to switch to an NR communication system while maintaining an existing LTE communication system by allowing LTE and NR to coexist on the same carrier.
  • DSS dynamic spectrum sharing
  • the present disclosure can be applied even when using the NR communication system alone (standalone).
  • FIG. 5 is a diagram illustrating an example of setting a control resource set (CORESET) of a downlink control channel in a wireless communication system according to an embodiment of the present disclosure.
  • CORESET control resource set
  • control region #1 (CORESET #1) 501) in a bandwidth part 510 of the terminal on the frequency axis and one slot 520 on the time axis.
  • #2 (CORESET #2) 502) is set is shown.
  • the control regions 501 and 502 may be set in a specific frequency resource 503 within the entire terminal bandwidth portion 510 on the frequency axis.
  • the control regions 501 and 502 may be set with one or more OFDM symbols on the time axis, which may be defined as a control resource set duration (504).
  • the control region #1 501 is set to a control region length of two symbols
  • the control region #2 502 is set to a control region length of one symbol.
  • the control region in 5G described above can be set by the base station to the terminal through higher layer signaling (eg, system information, master information block (MIB), radio resource control (RRC) signaling).
  • Setting the control region to the terminal means to provide the terminal with information such as a control region identity, a frequency position of the control region, and a symbol length of the control region.
  • the information in Table 1 may be included.
  • the terminal may monitor the PDCCH in the control region configured by the base station, and may transmit/receive data based on the received control information.
  • various types of DCI formats may be provided as shown in Table 2 below for efficient reception of control information of the UE.
  • the base station may use DCI format 1_0, DCI format 1_1, or DCI format 1_2 to allocate (scheduling) the PDSCH for one cell to the terminal.
  • the base station may use DCI format 1_0, DCI format 1_1, or DCI format 1_2 to allocate PDSCHs for a plurality of cells to the terminal.
  • the base station may use DCI of a different format to allocate PDSCHs for a plurality of cells to the terminal.
  • DCI format 1_1 is described as an example in the present disclosure, it is obvious that other DCI formats may be used, and accordingly, some of the following information may be omitted and other information necessary for scheduling a plurality of cells may be included. .
  • the base station may use DCI format 0_0, DCI format 0_1, or DCI format 0_2 to allocate (scheduling) the PUSCH for one cell to the terminal.
  • the base station may use DCI format 0_0, DCI format 0_1, or DCI format 0_2 to allocate PUSCHs for a plurality of cells to the terminal.
  • the base station may use DCI of a different format to allocate PUSCHs for a plurality of cells to the terminal.
  • DCI format 0_1 is described as an example in the present disclosure, it is obvious that other DCI formats may be used, and accordingly, some of the following information may be omitted and other information necessary for scheduling a plurality of cells may be included. .
  • DCI format 1_0 When DCI format 1_0 is transmitted together with CRC scrambled by cell radio network temporary identifier (C-RNTI), configured scheduling RNTI (CS-RNTI), or new-RNTI, it may include at least the following information:
  • C-RNTI cell radio network temporary identifier
  • CS-RNTI configured scheduling RNTI
  • new-RNTI it may include at least the following information:
  • NRBG bits or bits indicates frequency axis resource allocation, and when DCI format 1_0 is monitored in the UE specific search space is the size of the active DL BWP, otherwise is the size of the initial DL BWP.
  • NRBG is the number of resource block groups. For a detailed method, refer to the frequency axis resource allocation.
  • time domain resource assignment (0 ⁇ 4 bits): indicates time domain resource assignment of PDSCH.
  • Modulation and coding scheme indicates the modulation order and coding rate used for PDSCH transmission.
  • - New data indicator (1 bit): indicates whether the PDSCH is initial transmission or retransmission depending on whether toggle.
  • - HARQ process number (4 bits): indicates the HARQ process number used for PDSCH transmission.
  • PUCCH resource indicator As a PUCCH resource indicator, it indicates one of eight resources configured as a higher layer.
  • HARQ feedback timing indicator As a HARQ feedback timing indicator, it indicates one of eight feedback timing offsets set as a higher layer.
  • DCI format 1_1 When DCI format 1_1 is transmitted together with CRC scrambled by cell radio network temporary identifier (C-RNTI), configured scheduling RNTI (CS-RNTI), or new-RNTI, it includes at least the following information:
  • C-RNTI cell radio network temporary identifier
  • CS-RNTI configured scheduling RNTI
  • new-RNTI it includes at least the following information:
  • - Carrier indicator (0 or 3 bits): indicates the CC (or cell) to which the PDSCH allocated by the corresponding DCI is transmitted.
  • - Bandwidth part indicator (0 or 1 or 2 bits): indicates the BWP through which the PDSCH allocated by the corresponding DCI is transmitted.
  • Frequency domain resource assignment (payload is determined according to the frequency axis resource allocation): indicates frequency axis resource allocation, is the size of the active DL BWP. For a detailed method, refer to the frequency axis resource allocation.
  • Time domain resource assignment (0 ⁇ 4 bits): indicates time domain resource assignment according to the above description.
  • - VRB-to-PRB mapping (0 or 1 bit): 0 indicates Non-interleaved, 1 indicates interleaved VRP-to-PRB mapping. It is 0 bit when frequency axis resource allocation is set to resource type 0.
  • Rate matching indicator (0 or 1 or 2 bits): indicates the rate matching pattern.
  • - ZP CSI-RS trigger (0 or 1 or 2 bits): an indicator for triggering aperiodic ZP CSI-RS.
  • Modulation and coding scheme indicates the modulation order and coding rate used for PDSCH transmission.
  • - New data indicator (1 bit): indicates whether the PDSCH is initial transmission or retransmission depending on whether toggle.
  • Modulation and coding scheme indicates the modulation order and coding rate used for PDSCH transmission.
  • - New data indicator (1 bit): indicates whether the PDSCH is initial transmission or retransmission depending on whether toggle.
  • - HARQ process number (4 bits): indicates the HARQ process number used for PDSCH transmission.
  • PUCCH resource indicator As a PUCCH resource indicator, it indicates one of eight resources configured as a higher layer.
  • HARQ feedback timing indicator As a HARQ feedback timing indicator, it indicates one of eight feedback timing offsets set as a higher layer.
  • Antenna port (4 or 5 or 6 bits): indicates DMRS port and CDM group without data.
  • TCI indicator (0 or 3 bits):
  • CBG transmission information (0 or 2 or 4 or 6 or 8 bits): an indicator indicating whether to transmit code block groups in the allocated PDSCH. 0 means that the CBG is not transmitted, and 1 means that it is transmitted.
  • the maximum number of DCIs of different sizes that the UE can receive per slot in the corresponding cell is 4.
  • the maximum number of DCIs of different sizes scrambled with C-RNTIs that the UE can receive per slot in the corresponding cell is 3.
  • information included in the DCI format 1_0 or 1_1 is only an embodiment of the present disclosure, and some information may be omitted or other information may be added. In addition, at least some of the information may be included in a DCI format other than the DCI format 1_0 or 1_1.
  • DAI may be used in combination with a downlink allocation index.
  • FIG. 6 is a diagram illustrating a method of determining a DAI when scheduling a PDSCH for one cell through one PDCCH according to the present disclosure.
  • the DCI or DCI format transmitted through the PDCCH for scheduling the PDSCH may include DAI.
  • DAI counter DAI 610) and total DAI (620), and the value of each DAI means the following.
  • the value of the counter DAI (610) field is ⁇ serving cell, PDCCH monitoring time (occasion) ⁇ in which DCI formats associated with the current serving cell and PDSCH(s) or SPS PDSCH release up to the current PDCCH monitoring time (occasion) exist. - Means the cumulative number of pair(s).
  • a value of the counter downlink assignment indicator (DAI) field in DCI formats denotes the accumulative number of ⁇ serving cell, PDCCH monitoring occasion ⁇ -pair(s) in which PDSCH reception(s) or SPS PDSCH release associated with the DCI formats is present up to the current serving cell and current PDCCH monitoring occasion, first in ascending order of serving cell index and then in ascending order of PDCCH monitoring occasion index m, where 0 ⁇ m ⁇ M).
  • the value of the total DAI (620) field is ⁇ serving cell, PDCCH monitoring time (occasion) ⁇ -pair(s) in which DCI formats associated with PDSCH(s) or SPS PDSCH release up to the current PDCCH monitoring time (occasion) exist. means the total number of And, the value of the total DAI field may be updated at every PDCCH monitoring occasion (occasion) (The value of the total DAI, when present, in a DCI format denotes the total number of ⁇ serving cell, PDCCH monitoring occasion ⁇ -pair (s) in which PDSCH reception(s) or SPS PDSCH release associated with DCI formats is present, up to the current PDCCH monitoring occasion m and is updated from PDCCH monitoring occasion to PDCCH monitoring occasion).
  • four serving cells 601 , 602 , 603 , and 604 may be configured and activated in the UE, and the UE may monitor a PDCCH in each serving cell and receive a PDSCH scheduled through the PDCCH.
  • Values of counter DAI and total DAI included in DCI delivered through PDCCH may be the same as in FIG. 6 .
  • the numbers shown in FIG. 6 are numbers to aid understanding, and the actual size of each DAI field may be determined by setting an upper layer, etc., and the actual transmitted DAI value may be determined through a modulo operation.
  • the size of the DAI field may be determined according to whether specific information is included or activated (or enabled) in the configuration information transmitted through the higher layer.
  • the specific information may be, for example, information indicating whether total DAI is included. Alternatively, information directly indicating the size of the DAI field may be included in the configuration information. Also, the counter DAI value and the total DAI value may be included in the DAI field. Accordingly, when the total DAI value is not included, the DAI field may be the same as the counter DAI value. When the total DAI value is included, the MSB of a specific bit and the LSB of the specific bit of the DAI field are the counter DAI and the total You can direct DAI.
  • the number of bits of DAI is NDAI
  • TD is 2NDAI
  • the value of Y is PDSCH(s) or PDCCH(s) associated with 'SPS PDSCH release' exists ⁇ serving cell, PDCCH monitoring occasion ⁇ -pair(s) )
  • the value of the actually transmitted DAI field may be determined as a value of (Y-1) mod TD + 1.
  • the UE may perform PDCCH monitoring, and may miss some of the PDCCHs (or PDCCH detection failure or PDCCH lost). 6 shows an example in which the PDCCH 630 is missed in the serving cell #2 603.
  • the size of the HARQ-ACK codebook can be determined as 6 according to the total DAI value confirmed through another PDCCH, and the PDCCH including the counter DAI value of 5 was not received.
  • a fifth value of the HARQ-ACK codebook may be set to NACK. Accordingly, the correct HARQ codebook can be determined even when some PDCCHs are not received through the above method.
  • the electronic device 701 communicates with the electronic device 702 through a first network 798 (eg, a short-range wireless communication network) or a second network 799 . It may communicate with at least one of the electronic device 704 and the server 708 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 701 may communicate with the electronic device 704 through the server 708 .
  • a first network 798 eg, a short-range wireless communication network
  • a second network 799 e.g., a second network 799
  • the electronic device 704 and the server 708 eg, a long-distance wireless communication network
  • the electronic device 701 may communicate with the electronic device 704 through the server 708 .
  • the electronic device 701 includes a processor 720 , a memory 730 , an input module 750 , a sound output module 755 , a display module 760 , an audio module 770 , and a sensor module ( 776), interface 777, connection terminal 778, haptic module 779, camera module 780, power management module 788, battery 789, communication module 790, subscriber identification module 796 , or an antenna module 797 .
  • at least one of these components eg, the connection terminal 778
  • some of these components are integrated into one component (eg, display module 760 ). can be
  • the processor 720 executes software (eg, a program 740) to execute at least one other component (eg, a hardware or software component) of the electronic device 701 connected to the processor 720 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or computation, the processor 720 converts commands or data received from other components (eg, the sensor module 776 or the communication module 790 ) to the volatile memory 732 . may store the command or data stored in the volatile memory 732 , and store the result data in the non-volatile memory 734 .
  • software eg, a program 740
  • the processor 720 converts commands or data received from other components (eg, the sensor module 776 or the communication module 790 ) to the volatile memory 732 .
  • the volatile memory 732 may store the command or data stored in the volatile memory 732 , and store the result data in the non-volatile memory 734 .
  • the processor 720 may include a main processor 721 (eg, a central processing unit or an application processor) or a secondary processor 723 (eg, a graphics processing unit, a neural network processing unit (eg, a graphics processing unit) capable of operating independently or together with the main processor 721 (eg, a central processing unit or an application processor). a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor).
  • the electronic device 701 includes a main processor 721 and a sub-processor 723
  • the sub-processor 723 uses less power than the main processor 721 or is set to be specialized for a specified function.
  • the coprocessor 723 may be implemented separately from or as part of the main processor 721 .
  • the coprocessor 723 may, for example, act on behalf of the main processor 721 while the main processor 721 is in an inactive (eg, sleep) state, or when the main processor 721 is active (eg, executing an application). ), together with the main processor 721, at least one of the components of the electronic device 701 (eg, the display module 760, the sensor module 776, or the communication module 790) It is possible to control at least some of the related functions or states.
  • coprocessor 723 eg, image signal processor or communication processor
  • the auxiliary processor 723 may include a hardware structure specialized for processing an artificial intelligence model.
  • Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 701 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 708).
  • the learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited
  • the artificial intelligence model may include a plurality of artificial neural network layers.
  • Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example.
  • the artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.
  • the memory 730 may store various data used by at least one component (eg, the processor 720 or the sensor module 776 ) of the electronic device 701 .
  • the data may include, for example, input data or output data for software (eg, the program 740 ) and instructions related thereto.
  • the memory 730 may include a volatile memory 732 or a non-volatile memory 734 .
  • the program 740 may be stored as software in the memory 730 , and may include, for example, an operating system 742 , middleware 744 , or an application 746 .
  • the input module 750 may receive a command or data to be used by a component (eg, the processor 720 ) of the electronic device 701 from the outside (eg, a user) of the electronic device 701 .
  • the input module 750 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).
  • the sound output module 755 may output a sound signal to the outside of the electronic device 701 .
  • the sound output module 755 may include, for example, a speaker or a receiver.
  • the speaker can be used for general purposes such as multimedia playback or recording playback.
  • the receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from or as part of the speaker.
  • the display module 760 may visually provide information to the outside (eg, a user) of the electronic device 701 .
  • the display module 760 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device.
  • the display module 760 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.
  • the audio module 770 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 770 acquires a sound through the input module 750 or an external electronic device (eg, a sound output module 755 ) directly or wirelessly connected to the electronic device 701 .
  • the electronic device 702) eg, a speaker or headphones
  • the sensor module 776 detects an operating state (eg, power or temperature) of the electronic device 701 or an external environmental state (eg, a user state), and generates an electrical signal or data value corresponding to the sensed state. can do.
  • the sensor module 776 may include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.
  • the interface 777 may support one or more designated protocols that may be used for the electronic device 701 to directly or wirelessly connect with an external electronic device (eg, the electronic device 702 ).
  • the interface 777 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.
  • HDMI high definition multimedia interface
  • USB universal serial bus
  • SD card interface Secure Digital Card
  • connection terminal 778 may include a connector through which the electronic device 701 can be physically connected to an external electronic device (eg, the electronic device 702 ).
  • the connection terminal 778 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).
  • the haptic module 779 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense.
  • the haptic module 779 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.
  • the camera module 780 may capture still images and moving images. According to one embodiment, the camera module 780 may include one or more lenses, image sensors, image signal processors, or flashes.
  • the power management module 788 may manage power supplied to the electronic device 701 .
  • the power management module 788 may be implemented, for example, as at least a part of a power management integrated circuit (PMIC).
  • PMIC power management integrated circuit
  • the battery 789 may supply power to at least one component of the electronic device 701 .
  • battery 789 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.
  • the communication module 790 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 701 and an external electronic device (eg, the electronic device 702 , the electronic device 704 , or the server 708 ). It can support establishment and communication performance through the established communication channel.
  • the communication module 790 may include one or more communication processors that operate independently of the processor 720 (eg, an application processor) and support direct (eg, wired) communication or wireless communication.
  • the communication module 790 may include a wireless communication module 792 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 794 (eg, : It may include a local area network (LAN) communication module, or a power line communication module).
  • a corresponding communication module among these communication modules is a first network 798 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 799 (eg, a legacy network).
  • the wireless communication module 792 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 796 within a communication network, such as the first network 798 or the second network 799 .
  • the electronic device 701 may be identified or authenticated.
  • the wireless communication module 792 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR).
  • NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)).
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communications
  • URLLC ultra-reliable and low-latency
  • the wireless communication module 792 may support a high frequency band (eg, mmWave band) in order to achieve a high data rate, for example.
  • a high frequency band eg, mmWave band
  • the wireless communication module 792 uses various techniques for securing performance in a high frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna.
  • the wireless communication module 792 may support various requirements specified in the electronic device 701 , an external electronic device (eg, the electronic device 704 ), or a network system (eg, the second network 799 ).
  • the wireless communication module 792 includes a peak data rate (eg, 20 Gbps or more) for realization of eMBB, loss coverage for realization of mMTC (eg, 164 dB or less), or U-plane latency (for URLLC realization) ( Example: Downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) can be supported.
  • a peak data rate eg, 20 Gbps or more
  • mMTC eg, 164 dB or less
  • U-plane latency for URLLC realization
  • the antenna module 797 may transmit or receive a signal or power to the outside (eg, an external electronic device).
  • the antenna module 797 may include an antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern.
  • the antenna module 797 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network such as the first network 798 or the second network 799 is connected from the plurality of antennas by, for example, the communication module 790 . can be selected. A signal or power may be transmitted or received between the communication module 790 and an external electronic device through the selected at least one antenna.
  • other components eg, a radio frequency integrated circuit (RFIC)
  • RFIC radio frequency integrated circuit
  • the antenna module 797 may form a mmWave antenna module.
  • the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.
  • peripheral devices eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)
  • GPIO general purpose input and output
  • SPI serial peripheral interface
  • MIPI mobile industry processor interface
  • the command or data may be transmitted or received between the electronic device 701 and the external electronic device 704 through the server 708 connected to the second network 799 .
  • Each of the external electronic devices 702 and 704 may be the same or a different type of the electronic device 701 .
  • all or a part of operations executed by the electronic device 701 may be executed by one or more external electronic devices 702 , 704 , or 708 .
  • the electronic device 701 may instead of executing the function or service itself.
  • one or more external electronic devices may be requested to perform at least a part of the function or the service.
  • One or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 701 .
  • the electronic device 701 may process the result as it is or additionally and provide it as at least a part of a response to the request.
  • cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used.
  • the electronic device 701 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing.
  • the external electronic device 704 may include an Internet of things (IoT) device.
  • Server 708 may be an intelligent server using machine learning and/or neural networks.
  • the external electronic device 704 or the server 708 may be included in the second network 799 .
  • the electronic device 701 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.
  • the electronic device may have various types of devices.
  • the electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device.
  • a portable communication device eg, a smart phone
  • a computer device e.g., a smart phone
  • a portable multimedia device e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a camera e.g., a portable medical device
  • a wearable device e.g., a smart bracelet
  • a home appliance device e.g., a home appliance
  • first, second, or first or second may simply be used to distinguish an element from other elements in question, and may refer elements to other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is “coupled” or “connected” to another (eg, second) component, with or without the terms “functionally” or “communicatively”. When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.
  • module used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit.
  • a module may be an integrally formed part or a minimum unit or a part of the part that performs one or more functions.
  • the module may be implemented in the form of an application-specific integrated circuit (ASIC).
  • ASIC application-specific integrated circuit
  • Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 736 or external memory 738) readable by a machine (eg, electronic device 701). may be implemented as software (eg, a program 740) including
  • a processor eg, processor 720
  • a device eg, electronic device 701
  • the one or more instructions may include code generated by a compiler or code executable by an interpreter.
  • the device-readable storage medium may be provided in the form of a non-transitory storage medium.
  • 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.
  • a signal eg, electromagnetic wave
  • the method according to various embodiments disclosed in this document may be provided in a computer program product (computer program product).
  • Computer program products may be traded between sellers and buyers as commodities.
  • the computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or through an application store (eg Play StoreTM) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones).
  • a portion of the computer program product may be temporarily stored or temporarily created in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.
  • each component eg, a module or a program of the above-described components may include a singular or a plurality of entities, and some of the plurality of entities may be separately disposed in other components. have.
  • one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added.
  • a plurality of components eg, a module or a program
  • the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. .
  • operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. , or one or more other operations may be added.
  • FIG. 8 is a block diagram 800 of an electronic device (eg, the electronic device 701 of FIG. 7 ) for supporting legacy network communication and 5G network communication, according to various embodiments of the present disclosure.
  • the electronic device 701 includes a first communication processor 812 , a second communication processor 814 , a first radio frequency integrated circuit (RFIC) 822 , a second RFIC 824 , and a third RFIC 826 , a fourth RFIC 828 , a first radio frequency front end (RFFE) 832 , a second RFFE 834 , a first antenna module 842 , a second antenna module 844 , and an antenna (848).
  • the electronic device 701 may further include a processor (eg, the processor 720 of FIG. 7 ) and a memory (eg, the memory 730 of FIG. 7 ).
  • the network eg, the second network 799 of FIG.
  • a first network 892 and a second network 894 may include a first network 892 and a second network 894 .
  • the electronic device 701 may further include at least one component among the components illustrated in FIG. 7
  • the network 799 may further include at least one other network.
  • a first communication processor 812 , a second communication processor 814 , a first RFIC 822 , a second RFIC 824 , a fourth RFIC 828 , a first RFFE 832 , and the second RFFE 834 may form at least a part of a wireless communication module (eg, the wireless communication module 792 of FIG. 7 ).
  • the fourth RFIC 828 may be omitted or may be included as a part of the third RFIC 826 .
  • the first communication processor 812 may support establishment of a communication channel of a band to be used for wireless communication with the first network 892 and legacy network communication through the established communication channel.
  • the first network may be a legacy network including a second generation (5G), 3G, 4G, or long term evolution (LTE) network.
  • the second communication processor 814 establishes a communication channel corresponding to a designated band (eg, about 6 GHz to about 60 GHz) among bands to be used for wireless communication with the second network 894 , and 5G network communication through the established communication channel can support
  • the second network 894 may be a 5G network defined by 3GPP.
  • the first communication processor 812 or the second communication processor 814 may be configured to correspond to another designated band (eg, about 6 GHz or less) among bands to be used for wireless communication with the second network 894 . It is possible to support the establishment of a communication channel, and 5G network communication through the established communication channel.
  • the first communication processor 812 and the second communication processor 814 may be implemented in a single chip or a single package.
  • the first communication processor 812 or the second communication processor 814 may be a processor 720 , a coprocessor (eg, the coprocessor 723 of FIG. 7 ), or a communication module (eg, FIG. 7 ). 7, the communication module 790) and may be formed in a single chip or a single package.
  • the first RFIC 822 when transmitting, transmits a baseband signal generated by the first communication processor 812 to about 700 MHz to about 3 GHz used for the first network 892 (eg, a legacy network). can be converted to a radio frequency (RF) signal of Upon reception, an RF signal is obtained from a first network 892 (eg, a legacy network) via an antenna (eg, a first antenna module 842 ) and via an RFFE (eg, a first RFFE 832 ). It may be preprocessed. The first RFIC 822 may convert the preprocessed RF signal into a baseband signal to be processed by the first communication processor 812 .
  • RF radio frequency
  • the second RFIC 824 when transmitting, transmits the baseband signal generated by the first communication processor 812 or the second communication processor 814 to the second network 894 (eg, a 5G network). It can be converted into an RF signal (hereinafter, 5G Sub6 RF signal) of the Sub6 band (eg, about 6 GHz or less).
  • 5G Sub6 RF signal RF signal
  • a 5G Sub6 RF signal is obtained from a second network 894 (eg, 5G network) via an antenna (eg, second antenna module 844), and RFFE (eg, second RFFE 834) can be pre-processed.
  • the second RFIC 824 may convert the preprocessed 5G Sub6 RF signal into a baseband signal to be processed by a corresponding one of the first communication processor 812 or the second communication processor 814 .
  • the third RFIC 826 transmits the baseband signal generated by the second communication processor 814 to the RF of the 5G Above6 band (eg, about 6 GHz to about 60 GHz) to be used in the second network 894 (eg, 5G network). It can be converted into a signal (hereinafter referred to as 5G Above6 RF signal).
  • a 5G Above6 RF signal may be obtained from a second network 894 (eg, 5G network) via an antenna (eg, antenna 848 ) and pre-processed via a third RFFE 836 .
  • the third RFIC 826 may convert the preprocessed 5G Above6 RF signal into a baseband signal to be processed by the second communication processor 814 .
  • the third RFFE 836 may be formed as part of the third RFIC 826 .
  • the electronic device 701 may include the fourth RFIC 828 separately from or as at least a part of the third RFIC 826 .
  • the fourth RFIC 828 converts the baseband signal generated by the second communication processor 814 into an RF signal (hereinafter, IF signal) of an intermediate frequency band (eg, about 9 GHz to about 11 GHz). After conversion, the IF signal may be transmitted to the third RFIC 826 .
  • the third RFIC 826 may convert the IF signal into a 5G Above6 RF signal.
  • a 5G Above6 RF signal may be received from a second network 894 (eg, 5G network) via an antenna (eg, antenna 848 ) and converted to an IF signal by a third RFIC 826 .
  • the fourth RFIC 828 may convert the IF signal into a baseband signal for processing by the second communication processor 814 .
  • the first RFIC 822 and the second RFIC 824 may be implemented as a single chip or at least a part of a single package.
  • the first RFFE 832 and the second RFFE 834 may be implemented as at least a part of a single chip or a single package.
  • at least one antenna module of the first antenna module 842 or the second antenna module 844 may be omitted or may be combined with another antenna module to process RF signals of a plurality of corresponding bands.
  • the third RFIC 826 and the antenna 848 may be disposed on the same substrate to form the third antenna module 846 .
  • the wireless communication module 792 or the processor 720 may be disposed on the first substrate (eg, main PCB).
  • the third RFIC 826 is located in a partial area (eg, bottom) of the second substrate (eg, sub PCB) separate from the first substrate, and the antenna 848 is located in another partial region (eg, top). is disposed, the third antenna module 846 may be formed.
  • the electronic device 701 may improve the quality or speed of communication with the second network 894 (eg, a 5G network).
  • the second network 894 eg, a 5G network
  • the antenna 848 may be formed as an antenna array including a plurality of antenna elements that can be used for beamforming.
  • the third RFIC 826 may include a plurality of phase shifters 838 corresponding to the plurality of antenna elements, for example, as a part of the third RFFE 836 .
  • each of the plurality of phase shifters 838 may transform the phase of a 5G Above6 RF signal to be transmitted to the outside of the electronic device 701 (eg, a base station of a 5G network) through a corresponding antenna element. .
  • each of the plurality of phase converters 838 may convert the phase of the 5G Above6 RF signal received from the outside through a corresponding antenna element into the same or substantially the same phase. This enables transmission or reception through beamforming between the electronic device 701 and the outside.
  • the second network 894 may be operated independently from the first network 892 (eg, legacy network) (eg, Stand-Alone (SA)) or connected and operated (eg: Non-Stand Alone (NSA)).
  • the 5G network may have only an access network (eg, 5G radio access network (RAN) or next generation RAN (NG RAN)), and may not have a core network (eg, next generation core (NGC)).
  • the electronic device 701 may access an external network (eg, the Internet) under the control of a core network (eg, evolved packed core (EPC)) of the legacy network.
  • EPC evolved packed core
  • Protocol information for communication with a legacy network eg, LTE protocol information
  • protocol information for communication with a 5G network eg, New Radio (NR) protocol information
  • other components eg, processor 720 , the first communication processor 812 , or the second communication processor 814 .
  • FIG. 9 shows, for example, one embodiment of the structure of the third antenna module 846 described with reference to FIG. 8 .
  • 9A is a perspective view of the third antenna module 846 viewed from one side
  • FIG. 9B is a perspective view of the third antenna module 846 viewed from the other side
  • 9(c) is a cross-sectional view taken along X-X' of the third antenna module 846. As shown in FIG.
  • the third antenna module 846 includes a printed circuit board 910 , an antenna array 930 , a radio frequency integrate circuit (RFIC) 952 , or a power manage integrate circuit (PMIC). ) (954).
  • the third antenna module 846 may further include a shielding member 990 .
  • at least one of the above-mentioned components may be omitted, or at least two of the above-mentioned components may be integrally formed.
  • the printed circuit board 910 may include a plurality of conductive layers and a plurality of non-conductive layers alternately stacked with the conductive layers.
  • the printed circuit board 910 may provide an electrical connection between the printed circuit board 910 and/or various electronic components disposed outside by using wires and conductive vias formed in the conductive layer.
  • Antenna array 930 may include a plurality of antenna elements 932 , 934 , 936 , or 938 disposed to form a directional beam.
  • the antenna elements 932 , 934 , 936 , or 938 may be formed on the first surface of the printed circuit board 910 as shown.
  • the antenna array 930 may be formed inside the printed circuit board 910 .
  • the antenna array 930 may include a plurality of antenna arrays (eg, a dipole antenna array and/or a patch antenna array) of the same or different shape or type.
  • the RFIC 952 (eg, 826 of FIG. 8 ) may be disposed in another area of the printed circuit board 910 (eg, a second side opposite the first side) that is spaced apart from the antenna array. have.
  • the RFIC is configured to process a signal of a selected frequency band, which is transmitted/received through the antenna array 930 .
  • the RFIC 952 may convert a baseband signal obtained from a communication processor (not shown) into an RF signal of a designated band during transmission.
  • the RFIC 952 may convert an RF signal received through the antenna array 930 into a baseband signal and transmit it to a communication processor.
  • the RFIC 952 at the time of transmission, an IF signal (eg, about 9 GHz to about 11 GHz) obtained from an intermediate frequency integrate circuit (IFIC) (eg, 828 of FIG. 8 ) in a selected band can be up-converted to an RF signal of The RFIC 952 may, upon reception, down-convert an RF signal obtained through the antenna array 930, convert it into an IF signal, and transmit it to the IFIC.
  • IFIC intermediate frequency integrate circuit
  • the PMIC 954 may be disposed in another partial area (eg, the second surface) of the printed circuit board 910 that is spaced apart from the antenna array 930 .
  • the PMIC may receive a voltage from a main PCB (not shown) to provide power required for various components (eg, the RFIC 952 ) on the antenna module.
  • a shielding member 990 may be disposed on a portion (eg, the second side) of the printed circuit board 910 to electromagnetically shield at least one of the RFIC 952 or the PMIC 954 .
  • the shielding member 990 may include a shield can.
  • the third antenna module 846 may be electrically connected to another printed circuit board (eg, a main circuit board) through a module interface.
  • the module interface may include a connection member, for example, a coaxial cable connector, a board to board connector, an interposer, or a flexible printed circuit board (FPCB).
  • the RFIC 952 and/or the PMIC 954 of the antenna module may be electrically connected to the printed circuit board through the connecting member.
  • An electronic device (eg, the user terminal 115 of FIG. 1 or the electronic device 701 of FIGS. 7 or 8 ) according to various embodiments of the present disclosure includes one or more antennas (eg, the first antenna module 842 of FIG. 8 ). , second antenna module 844 and/or third antenna module 846), communication circuitry (eg, communication module 790 of FIG. 7 ), and a processor operatively connected with the communication circuit (eg, communication module 790 of FIG.
  • a processor 720 wherein the processor monitors a physical downlink control channel (PDCCH) for a specified time from a base station based on a control region configuration of a downlink control channel of at least one serving cell, and receives the monitoring result It can be configured to check a downlink assignment index (DAI) field included in the PDCCH and adjust at least some reception beams of the one or more antennas for at least some of the at least one serving cell when a designated event occurs.
  • DAI downlink assignment index
  • the designated event may include at least one of an event in which the number of missing PDCCHs exceeds a threshold value during the designated time period or an event in which the PDCCH continuously disappears.
  • the threshold value may be set based on a condition including at least one of a received signal strength, a received beam width, a service type, or a characteristic of an application being executed.
  • the DAI field includes a counter DAI value and a total DAI value
  • the processor sets values of the DAI field including the same total DAI value included in each of the DCIs received during the specified time. , it may be configured to check the existence of the DAI field values based on the counter DAI values.
  • the processor increments the counter DAI value by one for the DAI fields including the same total DAI value for the specified time until it becomes the same as the total DAI value, and the corresponding DAI field It can be set to check that all values are present.
  • the processor adjusts the reception beam for at least one of the two or more Scells when the specified event occurs can be set to
  • the processor when the at least one serving cell includes two or more secondary cells (Scells), the processor is configured to: the DAI field of the DCI received for the specified time in a control region of each of the two or more Scells It may be configured to determine whether the specified event occurs for each of the two or more Scells based on information included in the , and separately adjust the reception beam for an Scell in which the specified event occurs among the two or more Scells. .
  • the processor may be configured to adjust the reception beam based on the previously performed RS measurement (reference signal measurement).
  • the processor may be configured to re-perform the RS measurement and perform the reception beam adjustment based thereon.
  • the DAI field includes a counter DAI value and a total DAI value
  • the processor updates at least the total DAI value among information included in the DAI field, and includes it in the updated DAI field. Based on the received information, it may be configured to check the DAI field included in the PDCCH received through the adjusted reception beam.
  • DAI downlink assignment index
  • the processor eg, the processor 720 of FIG. 7 or 8 of the electronic device (eg, the user terminal 115 of FIG. 1 , the electronic device 701 of FIG. 7 or 8 ) is connected to the network ( Example: at least one antenna (eg, FIG. 8 ) to receive a signal from the base station ( gNB 110 or eNB 130 ) of FIG. 1 or FIG. 2 , or the second network 799 of FIG. 7 or FIG. 8 . of the first antenna module 842 , the second antenna module 844 , and/or the third antenna module 846 ) may adjust the reception beam.
  • the network Example: at least one antenna (eg, FIG. 8 ) to receive a signal from the base station ( gNB 110 or eNB 130 ) of FIG. 1 or FIG. 2 , or the second network 799 of FIG. 7 or FIG. 8 . of the first antenna module 842 , the second antenna module 844 , and/or the third antenna module 846 ) may adjust the reception beam.
  • the electronic device 701 may set a Pcell and/or at least one Scell according to carrier aggregation (CA) in a wireless communication system.
  • the processor 720 performs a downlink (DCI) from the base station 110 through a control resource set (CORESET) of a downlink control channel of a serving cell including a PCell and/or at least one Scell according to whether cross-carrier scheduling is set. control information) or a PDCCH including a DCI format may be received.
  • DCI downlink
  • CORESET control resource set
  • control information or a PDCCH including a DCI format
  • the processor 720 may receive a control resource set (CORESET) configuration of a downlink control channel of at least one serving cell from the base station in operation 1001. According to an embodiment, In operation 1003 , the processor 720 may monitor the PDCCH for a specified time based on the received control region (CORESET) setting of the downlink control channel.
  • CORESET control resource set
  • the processor 720 may check the DAI field included in the detected PDCCH according to the PDCCH monitoring result.
  • the processor 720 checks the PDCCH scheduling information received through the control region of the downlink control channel of the PCell and/or at least one Scell by checking the DAI field value included in the DCI format of the received PDCCH.
  • the DAI field may include two fields including a counter DAI value and a total DAI value.
  • the value of the counter DAI field is ⁇ serving cell in which DCI formats associated with the current serving cell and PDSCH(s) or semi-persistent scheduling (SPS) PDSCH release up to the current PDCCH monitoring point (occasion) exist.
  • PDCCH monitoring time (occasion) ⁇ - may mean the cumulative number of pair(s). In this case, it may be counted first in the order of the serving cell index, and then may be counted in the order of the PDCCH monitoring occasion index.
  • a value of the counter downlink assignment indicator (DAI) field in DCI formats denotes the accumulative number of ⁇ serving cell, PDCCH monitoring occasion ⁇ -pair(s) in which PDSCH reception(s) or SPS PDSCH release associated with the DCI formats is present up to the current serving cell and current PDCCH monitoring occasion, first in ascending order of serving cell index and then in ascending order of PDCCH monitoring occasion index).
  • DCI counter downlink assignment indicator
  • the value of the total DAI field is ⁇ serving cell, PDCCH monitoring time (occasion) ⁇ -pair in which DCI formats associated with PDSCH(s) or SPS PDSCH release up to the current PDCCH monitoring time (occasion) exist means the total number of (s).
  • the value of the total DAI field may be updated at every PDCCH monitoring occasion (occasion) (The value of the total DAI, when present, in a DCI format denotes the total number of ⁇ serving cell, PDCCH monitoring occasion ⁇ -pair(s) ) in which PDSCH reception(s) or SPS PDSCH release associated with DCI formats is present, up to the current PDCCH monitoring occasion m and is updated from PDCCH monitoring occasion to PDCCH monitoring occasion).
  • the processor 720 may monitor the PDCCH for a 'designated time' or a 'designated unit time'.
  • the processor 720 is configured to perform the DAI field included in the DCI format received through at least one downlink control channel of the Pcell and/or at least one Scell for a 'designated time' or a 'designated unit time'. It is possible to monitor the PDCCH by checking the value, and accordingly, it is possible to check the missing PDCCH for a 'designated time' or a 'designated unit time'.
  • the processor 720 detects the DAI field from the DCI format of the PDCCH received through at least one downlink control channel of the Pcell or the at least one Scell, and counters the total DAI value among the values of the DAI field. Through the DAI value, the total number of serving cells in which the DCI format allocated to the electronic device 701 exists during the corresponding monitoring time and the cumulative number of serving cells in which the DCI format exists until the current serving cell or the current PDCCH monitoring time is confirmed. can
  • each serving cell It is possible to detect the received DAI field through PDCCH monitoring and check the field value.
  • the 'designated time' or 'designated unit time' may be set based on at least a part of information such as a service type, signal strength, and operating frequency band used by the terminal.
  • the processor 720 checks the DAI field from the PDCCH received during the 'designated time' or 'designated unit time', and sets the counter DAI value one by one for the DAI field including the same total DAI value. It can be checked whether the DAI field including each of the counter DAI values incremented by one exists until the counter DAI value becomes equal to the total DAI value.
  • the processor 720 is configured to include the total number of received DAI fields including the same total DAI value and the DAI field including the same total DAI value received during the 'designated time' or 'designated unit time'. By checking the counter DAI value of , if a missing DAI field exists, the counter DAI value included in the corresponding DAI field can be estimated, and accordingly, it can be confirmed that the PDCCH including the corresponding DAI field is missing.
  • the processor 720 checks the counter DAI value and/or the total DAI value included in the DAI field first received from the Pcell for a 'designated time' or a 'designated unit time' for the corresponding time. You can check the total number of DAI fields to be received during the period. According to an embodiment, the processor 720 checks each DAI field having the same total DAI value received from at least one Scell during the 'designated time' or 'designated unit time', and the included counter DAI values are sequentially It is possible to check whether there is a missing DAI field up to the total DAI value.
  • the processor 720 checks the missing DAI field, and determines that the PDCCH including the missing DAI field is missing due to PDCCH detection failure or PDCCH lost.
  • the processor 720 may determine whether a specified event has occurred.
  • the designated event may include a case in which the number of PDCCH disappearances exceeds a designated threshold.
  • the designated event may include a case in which two or more PDCCHs disappear consecutively (eg, a counter DAI value of the DAI field is consecutively).
  • the designated event may include a case in which the PDCCH continuously disappears (eg, the counter DAI value of the missing DAI field is consecutively) by more than a designated threshold value.
  • the designated event may include a case in which more than a predefined number of PDCCHs disappear for a predetermined time.
  • the specified threshold value may be set under various conditions such as Rx signal strength, Rx beam width, operating frequency band, service type, and characteristics of an application running in the electronic device 701 . can be determined based on For example, the specified threshold may be determined in proportion to the total DAI value.
  • the processor 720 may determine whether an event has occurred at a specified time point (eg, a time point at which a 'designated time' or a 'designated unit time' of operation 1003 for PDCCH monitoring ends).
  • a specified time point eg, a time point at which a 'designated time' or a 'designated unit time' of operation 1003 for PDCCH monitoring ends.
  • the processor 720 may adjust a reception beam of at least a portion of at least one antenna of the electronic device 701 with respect to at least some of the serving cells in operation 1009 . .
  • the processor 720 receives a reception beam of at least one antenna (eg, the first antenna module 842, the second antenna module 844, and/or the third antenna module 846 of FIG. 8). Can be adjusted.
  • a reception beam of at least one antenna eg, the first antenna module 842, the second antenna module 844, and/or the third antenna module 846 of FIG. 8.
  • the processor 720 is configured for at least one antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ). can change the receive beam of , to another receive beam.
  • at least one antenna eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 .
  • the processor 720 may adjust a reception beam for at least one of a Pcell and/or at least one Scell configured in the electronic device 701 .
  • the processor 720 may adjust the reception beam for both the Pcell and at least one Scell.
  • the processor 720 may adjust the reception beam for at least one selected from the Pcell and the at least one Scell. For example, when a cell in which a PDCCH is missing is identified among the Pcell and at least one Scell, the processor 720 may adjust the reception beam for the corresponding serving cell.
  • the processor 720 may adjust the reception beam by re-performing RS measurement (reference signal measurement) and newly determining the best reception beam based thereon. For example, when the PDCCHs of all serving cells disappear in the same slot, the processor 720 may re-perform RS measurement (reference signal measurement) and determine a new best reception beam based on this.
  • RS measurement reference signal measurement
  • the processor 720 may adjust the reception beam to another reception beam based on the previously performed RS measurement. For example, when the PDCCH of some serving cells disappears in the same slot, the processor 720 may change the reception beam to the next best reception beam determined through the previous RS measurement.
  • the RS measurement is, for example, a synchronization signal block (SSB) or a channel state information reference singal (CSI-RS) reference signal, for example, reference signal received power (L1-RSRP) or L1-SINR. (signal-to-interference plus noise ratio) or other signal strength/quality measurements.
  • SSB synchronization signal block
  • CSI-RS channel state information reference singal
  • L1-RSRP reference signal received power
  • L1-SINR signal received power
  • signal-to-interference plus noise ratio signal strength/quality measurements.
  • the processor 720 may monitor the PDCCH received through the next slot by using the received beam adjusted according to the reception beam adjustment.
  • the processor 720 monitors 1003 the PDCCH for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, and checks the value of the DAI field ( 1005), it is possible to perform an operation of checking whether a specified event has occurred (1007).
  • the processor 720 monitors the received PDCCH for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, updates the DAI field value, and updates the updated Based on the DAI field value, the occurrence of the event may be confirmed by checking the DAI field included in the received PDCCH.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, and a total DAI value and/or a counter DAI value Whether the missing PDCCH exists can be checked by updating , and checking the value of the DAI field received through the PDCCH based on the updated DAI field value.
  • the updating of the DAI value mentioned in the embodiments disclosed in this document may mean updating of a variable used by the processor 702 for processing the DAI value included in the DCI received from the base station.
  • FIG. 11 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • a processor of an electronic device (eg, the user terminal 115 of FIG. 1 , the electronic device 701 of FIG. 7 or 8 ) (eg, the processor of FIG. 7 or 8 ) 720)) is configured to receive at least one signal from a network (eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 ).
  • a network eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 ).
  • a reception beam of an antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ) may be adjusted.
  • the Pcell 1101 and the Scell 1102 may be configured according to carrier aggregation (CA) in a wireless communication system.
  • the processor 720 performs downlink control information (DCI) from the base station 110 through a control resource set (CORESET) of a downlink control channel of the Pcell 1101 and/or the Scell 1102 according to whether cross-carrier scheduling is set.
  • DCI downlink control information
  • CORESET control resource set
  • Pcell is a frequency band below 6 GHz (below 6-GHz) and Scell may be configured in a frequency band above 6 GHz (above 6-GHz), but is not limited thereto, and each serving cell is 6 GHz It may be variously configured as above or below.
  • Pcell uses subcarrier spacing of 30 kHz spacing in frequency bands below 6 GHz
  • Scell uses subcarrier spacing of 60 kHz in frequency bands above 6 GHz.
  • two slots may be received in the Scell while one slot is received in the Pcell.
  • the processor 720 may configure the DAI field included in the DCI format received through the control region of the downlink control channel of at least one of the Pcell 1101 and the Scell 1102 configured in the electronic device 701 .
  • PDCCH scheduling information received through the control region of the downlink control channel of the PCell and Scell can be checked by checking the values 1110 and 1120 of .
  • the processor 720 checks the counter DAI value and/or the total DAI value included in the DAI field received from the Pcell 1101 for a 'designated time' or a 'designated unit time' and receives it during the corresponding time.
  • the total number of DCI or DAI fields to be used can be checked.
  • the processor 720 checks the DAI field having the same total DAI value received from the Pcell 1101 or the Scell 1102 for a 'designated time' or a 'designated unit time', respectively, and includes It can be checked whether a missing DAI field exists until the counter DAI value sequentially reaches the total DAI value.
  • the processor 720 may estimate the missing DAI field based on other DAI field values received during the 'designated time' or 'designated unit time', and the PDCCH including the missing DAI field is detected. It may be determined as missing due to failure or loss (PDCCH detection failure or PDCCH lost).
  • the DAI field may include two fields including a counter DAI value 1110 and a total DAI value 1120 .
  • the processor 720 may monitor the PDCCH for a 'designated time' or a 'designated unit time'.
  • the processor 720 may, for example, monitor the PDCCH during the time that one slot of the Pcell 1101 is received.
  • the processor 720 monitors the received PDCCH, for example, during a time when the second slot 1104 of the Pcell 1101 is received, and the DAI field value (3,4) through the Pcell 1101 It is possible to receive a PDCCH including The processor 720 detects the DAI field value, and can confirm that the total DAI value 1120 is 4 and the counter DAI value 1110 is 3, and accordingly, during the time the corresponding second slot 1104 is received, the same total It can be seen that a DAI field indicating 4, which has a DAI value and the counter DAI value is increased by 1 from 3, and (4,4) in this example will be received through the PDCCH of the Scell.
  • the processor 720 monitors the PDCCH for a time when the second slot 1104 is received, and checks the value of the received DAI field until the time when the reception of the second slot 1104 is completed (4, If the DAI field having a value of 4) is not received, it may be determined that the PDCCH 1130 including the corresponding DAI field (4,4) is missing (1150).
  • the processor 720 may check the occurrence of a designated event upon detecting that the PDCCH 1130 is missing ( 1150 ). For example, when at least one PDCCH 1130 is missing, it may be set as a designated event.
  • the processor 720 is configured for at least one antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ). can change the receive beam of , to another receive beam.
  • at least one antenna eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 .
  • the processor 720 changes the reception beam 1105 to another reception beam 1107 for the Pcell 1101 and/or the Scell 1102 set in the electronic device 701 to change the reception beam. Can be adjusted.
  • the processor 720 may adjust the reception beam for both the Pcell and at least one Scell.
  • the processor 720 re-performs the RS measurement (reference signal measurement) and adjusts the reception beam by newly determining the best reception beam based on this or based on the previously performed RS measurement.
  • the reception beam can be adjusted to another reception beam.
  • the processor 720 may change the reception beam to a reception beam next to the best reception beam determined through a previous RS measurement.
  • the processor 720 may monitor the PDCCH received through the next slot using the received beam 1107 adjusted according to the reception beam adjustment.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the value of , and monitor the reception of the PDCCH.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH Among the values of counter DAI, the counter DAI value is maintained as it is, but the total DAI value is updated to 7, for example, and PDCCH reception can be monitored.
  • FIG. 12 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • a processor eg, the processor of FIG. 7 or FIG. 8 of an electronic device (eg, the user terminal 115 of FIG. 1 , or the electronic device 701 of FIG. 7 or 8 ) 720)
  • a network eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 ).
  • a reception beam of an antenna eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ) may be adjusted.
  • a Pcell 1201 and a plurality of Scells are set according to carrier aggregation (CA) in a wireless communication system.
  • the processor 720 receives DCI from the base station 110 through a control resource set (CORESET) of the downlink control channel of the Pcell 1201 and/or the Scell 1202 and/or 1203 according to whether cross-carrier scheduling is set.
  • a PDCCH including a (downlink control information) format may be received.
  • Pcell may be configured in a band below 6 GHz (below 6-GHz) and Scell may be configured in a band above 6 GHz (above 6-GHz), but is not limited thereto. It may be variously configured as follows. For example, among the three carriers, Pcell uses subcarrier spacing of 30 kHz spacing in frequency bands below 6 GHz, and Scell uses subcarrier spacing of 60 kHz in frequency bands above 6 GHz. In the case of using , two slots may be received in the Scell while one slot is received in the Pcell.
  • the processor 720 is included in the DCI format received through the control region of the downlink control channel of at least one cell among the Pcell 1201 and the Scell 1202 and 1203 configured in the electronic device 701.
  • PDCCH scheduling information received through the control regions of the downlink control channels of the Pcells 1201 and 1202 and 1203 can be checked.
  • the processor 720 checks the counter DAI value and/or the total DAI value included in the DAI field received from the Pcell 1201 for a 'designated time' or a 'designated unit time' and receives it during the corresponding time.
  • the total number of DCI or DAI fields to be used can be checked.
  • the processor 720 checks the DAI field having the same total DAI value received from the Pcell 1201 or the Scell 1202 or 1203 during the 'designated time' or 'designated unit time', respectively, It can be checked whether a missing DAI field exists until the included counter DAI value sequentially reaches the total DAI value.
  • the processor 720 may estimate the missing DAI field value based on other DAI field values received during the 'designated time' or 'designated unit time', and the PDCCH including the missing DAI field is It may be determined as missing due to detection failure or loss (PDCCH detection failure or PDCCH lost).
  • the DAI field may include two fields including a counter DAI value 1210 and a total DAI value 1220 .
  • the processor 720 may monitor the PDCCH for a 'designated time' or a 'designated unit time'.
  • the processor 720 may, for example, monitor the PDCCH during a time during which one slot of the Pcell 1201 is received.
  • the processor 720 monitors the received PDCCH, for example, during a time when the second slot 1204 of the Pcell 1201 is received, and detects the DAI field from the PDCCH received through the Pcell 1201 . can do.
  • the processor 720 detects the value of the DAI field, and can confirm that the total DAI value 1220 is 7 and the counter DAI value 1210 is 5. Accordingly, during the time the corresponding second slot 1204 is received, the same total A DAI field containing (6,7) and (7,7) as field values in this example having a DAI value and counter DAI values of 6 and 7 increased by 1 from 5 is Scell 71 (1202) and/or It can be seen that it will be received through the PDCCH of the Scell 72 (1203).
  • the processor 720 monitors the PDCCH for a time when the second slot 1204 of the Pcell is received, and checks the value of the DAI field received until the time when the reception of the second slot 1204 is completed ( If a DAI field having a value of 6,7 and/or a DAI field having a value of (7,7) is not received, the PDCCH including the corresponding DAI field (6,7) and/or (7,7) ( 1230) and/or it may be determined that the PDCCH 1240 is missing (1250).
  • the processor 720 may check the occurrence of a designated event upon detecting that the PDCCH 1230 is missing ( 1250 ). For example, if two PDCCHs 1230 and 1240 are missing, it is determined that the designated event has occurred because more than half of the DAIs that should be received during the 'designated time' or 'designated unit time' meet the condition that more than half of the DAIs are not received can do.
  • the processor 720 is configured for at least one antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ). can change the receive beam to another receive beam.
  • the processor 720 sets the previous receive beam 1205 for the Pcell 1201 and/or the Scell 1202 and 1203 configured in the electronic device 701 . and 1206 may be changed to other receive beams 1207 and 1208 to adjust the receive beam. For example, when it is determined that a PDCCH received through a plurality of Scells is missing, reception beams for all of the plurality of Scells may be adjusted at once.
  • the processor 720 re-performs the RS measurement (reference signal measurement) and adjusts the reception beam by newly determining the best reception beam based on this or based on the previously performed RS measurement.
  • the reception beam can be adjusted to another reception beam.
  • the processor 720 may change the reception beam to a reception beam next to the best reception beam determined through a previous RS measurement.
  • the processor 720 may monitor the PDCCH received through the next slot by using the received beam 1207 or 1208 adjusted according to the reception beam adjustment.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the value of , and monitor the reception of the PDCCH.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the total DAI value and the counter DAI value among the values of , and monitor PDCCH reception.
  • FIG. 13 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • a processor eg, the processor of FIG. 7 or 8 of an electronic device (eg, the user terminal 115 of FIG. 1 , or the electronic device 701 of FIG. 7 or 8 ) 720)
  • a network eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 .
  • a reception beam of an antenna eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ) may be adjusted.
  • a Pcell 1301 and a plurality of Scells are set according to carrier aggregation (CA) in a wireless communication system.
  • the processor 720 receives DCI from the base station 110 through the control region (control resource set, CORESET) of the downlink control channel of the Pcell 1301 and/or the Scell 1302 and/or 1303 according to whether cross-carrier scheduling is set.
  • a PDCCH including a (downlink control information) format may be received.
  • Pcell may be configured in a band below 6 GHz (below 6-GHz) and Scell may be configured in a band above 6 GHz (above 6-GHz), but is not limited thereto. It may be variously configured as follows. For example, among the three carriers, Pcell uses subcarrier spacing of 30 kHz spacing in frequency bands below 6 GHz, and Scell uses subcarrier spacing of 60 kHz in frequency bands above 6 GHz. In the case of using , two slots may be received in the Scell while one slot is received in the Pcell.
  • the processor 720 is included in the DCI format received through the control region of the downlink control channel of at least one of the Pcell 1301 and the Scell 1302 and 1303 configured in the electronic device 701. By checking the values 1310 and 1320 of the DAI field, the PDCCH scheduling information received through the control region of the downlink control channel of the Pcell 1301 and the Scell 1302 and 1303 can be checked.
  • the processor 720 checks the counter DAI value and/or the total DAI value included in the DAI field first received from the Pcell 1301 during the 'designated time' or 'designated unit time' for the corresponding time. You can check the total number of DAI fields to be received.
  • the processor 720 checks the DAI field having the same total DAI value received from the Pcell 1301 or the Scell 1302 or 1303 during the 'designated time' or 'designated unit time', respectively, It can be checked whether a missing DAI field exists until the included counter DAI value sequentially reaches the total DAI value.
  • the processor 720 may estimate the missing DAI field value based on other DAI field values received during the 'designated time' or 'designated unit time', and the PDCCH including the missing DAI field is It may be determined as missing due to detection failure or loss (PDCCH detection failure or PDCCH lost).
  • the DAI field may include two fields including a counter DAI value 1310 and a total DAI value 1320 .
  • the processor 720 may monitor the PDCCH for a 'designated time' or a 'designated unit time'.
  • the processor 720 may, for example, monitor the PDCCH during a time when one slot of the Pcell 1301 is received.
  • the processor 720 monitors the received PDCCH, for example, during the time the second slot 1304 of the Pcell 1301 is received, and detects the DAI field from the PDCCH received through the Pcell 1301 . can do.
  • the processor 720 detects the DAI field value and determines that the total DAI value 1320 is 7 and the counter DAI value 1310 is 5. Accordingly, during the time the corresponding second slot 1304 is received, the same total A DAI field containing (6,7) and (7,7) as field values in this example having a DAI value and counter DAI values of 6 and 7 increased by 1 from 5 is Scell 71 (1302) and/or It can be seen that it will be received through the PDCCH of Scell 72 (1303).
  • the processor 720 monitors the PDCCH for a time when the second slot 1304 of the Pcell is received, and checks the value of the DAI field received until the time when the reception of the second slot 1304 is completed ( If a DAI field having a value of 6,7 and/or a DAI field having a value of (7,7) is not received, the PDCCH including the corresponding DAI field (6,7) and/or (7,7) ( 1330) and/or it may be determined that the PDCCH 1340 is missing.
  • the processor 720 may confirm ( 1350 ) that the PDCCH 1330 including the DAI field values (6, 7) is missing, and accordingly, may confirm the occurrence of a designated event. For example, if the criticality of the running application is high, the threshold value can be set low, and it is determined that the specified event has occurred due to the condition that DCI above the threshold (eg, one or more) among all DCIs is not received. can Or vice versa.
  • the processor 720 is configured for at least one antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ). can change the receive beam to another receive beam.
  • the processor 720 sets the previous receive beam 1305 for the Pcell 1301 and/or the Scell 1302 and 1303 configured in the electronic device 701 . and 1306 may be changed to other receive beams 1307 and 1308 to adjust the receive beam.
  • the processor 720 re-performs the RS measurement (reference signal measurement) and adjusts the reception beam by newly determining the best reception beam based on this or based on the previously performed RS measurement.
  • the reception beam can be adjusted to another reception beam.
  • the processor 720 may change the reception beam to a reception beam next to the best reception beam determined through a previous RS measurement.
  • the processor 720 may monitor the PDCCH received through the next slot using the received beam 1307 or 1308 adjusted according to the reception beam adjustment.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the value of , and monitor the reception of the PDCCH.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the total DAI value and the counter DAI value among the values of , and monitor PDCCH reception.
  • FIG. 14 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • a processor eg, the processor of FIG. 7 or 8 of an electronic device (eg, the user terminal 115 of FIG. 1 , or the electronic device 701 of FIG. 7 or 8 ) 720)
  • a network eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 .
  • a reception beam of an antenna eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ) may be adjusted.
  • a Pcell 1401 and a plurality of Scells are set according to carrier aggregation (CA) in a wireless communication system.
  • the processor 720 receives DCI from the base station 110 through the control region (control resource set, CORESET) of the downlink control channel of the Pcell 1401 and/or the Scell 1402 and/or 1403 according to whether cross-carrier scheduling is set.
  • a PDCCH including a (downlink control information) format may be received.
  • Pcell may be configured in a band below 6 GHz (below 6-GHz) and Scell may be configured in a band above 6 GHz (above 6-GHz), but is not limited thereto. It may be variously configured as follows. For example, among the three carriers, Pcell uses subcarrier spacing of 30 kHz spacing in frequency bands below 6 GHz, and Scell uses subcarrier spacing of 60 kHz in frequency bands above 6 GHz. In the case of using , two slots may be received in the Scell while one slot is received in the Pcell.
  • the processor 720 is included in the DCI format received through the control region of the downlink control channel of at least one of the Pcell 1401 and the Scell 1402 and 1403 configured in the electronic device 701.
  • the processor 720 By checking the values 1410 and 1420 of the DAI field, the PDCCH scheduling information received through the control regions of the downlink control channels of the Pcells 1401 and 1402 and 1403 can be checked.
  • the processor 720 checks the counter DAI value and/or the total DAI value included in the DAI field first received from the Pcell 1401 for the 'designated time' or 'designated unit time' during the corresponding time. You can check the total number of DAI fields to be received.
  • the processor 720 checks the DAI field having the same total DAI value received from the Pcell 1401 or the Scell 1402 or 1403 during the 'designated time' or 'designated unit time', respectively, It can be checked whether a missing DAI field exists until the included counter DAI value sequentially reaches the total DAI value.
  • the processor 720 may estimate the missing DAI field value based on other DAI field values received during the 'designated time' or 'designated unit time', and the PDCCH including the missing DAI field is It may be determined as missing due to detection failure or loss (PDCCH detection failure or PDCCH lost).
  • the DAI field may include two fields including a counter DAI value 1410 and a total DAI value 1420 .
  • the processor 720 may monitor the PDCCH for a 'designated time' or a 'designated unit time'.
  • the processor 720 may, for example, monitor the PDCCH for a time during which one slot of the Pcell 1401 is received.
  • the processor 720 monitors the received PDCCH, for example, during the time the second slot 1404 of the Pcell 1401 is received, and detects the DAI field from the PDCCH received through the Pcell 1401 . can do.
  • the processor 720 detects the DAI field value, and can confirm that the total DAI value 1410 is 7 and the counter DAI value 1420 is 5.
  • the same total A DAI field containing (6,7) and (7,7) as field values in this example having a DAI value and counter DAI values of 6 and 7 increased by 1 from 5 is Scell 71 (1402) and/or It can be seen that it will be received through the PDCCH of the Scell 72 (1403).
  • the processor 720 monitors the PDCCH during the time that the second slot 1404 of the Pcell is received, and checks the value of the DAI field received until the time when the reception of the second slot 1404 is completed ( It can be determined that the PDCCH 1430 including the DAI field having a value of 6, 7) is missing.
  • the processor 720 may confirm (1450) that the PDCCH 1430 including the DAI field value (6,7) is missing, but unlike the embodiment described with reference to FIG. 13 , a designated event It can be confirmed that this does not occur. For example, if the criticality of the running application is low, the threshold can be set high, and it is determined that the specified event has not occurred due to the condition that DAIs above the threshold (eg, 2 or more) are not received among all DAIs. can judge Or vice versa.
  • the threshold can be set high, and it is determined that the specified event has not occurred due to the condition that DAIs above the threshold (eg, 2 or more) are not received among all DAIs. can judge Or vice versa.
  • the processor 720 is configured for at least one antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ). It is possible to maintain the receive beams of the Pcell 1401 and Scells 1402 and 1403 configured in the electronic device 701 according to an exemplary embodiment. ) may be managed to maintain the same receive beams 1405 and 1406 .
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the value of , and monitor the reception of the PDCCH.
  • the processor 720 monitors the PDCCH received for the next 'designated time' or 'designated unit time' using the received beam adjusted according to the reception beam adjustment, the DAI field received through the PDCCH It is possible to update the total DAI value and the counter DAI value among the values of , and monitor PDCCH reception.
  • 15 is a diagram illustrating a DAI-based reception beam management method according to an embodiment.
  • a processor eg, the processor of FIG. 7 or 8 of an electronic device (eg, the user terminal 115 of FIG. 1 , the electronic device 701 of FIG. 7 or 8 ) 720)) is configured to receive at least one signal from a network (eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 ).
  • a network eg, a base station (gNB 110 or eNB 130 ) of FIG. 1 or 2 , or a second network 799 of FIG. 7 or 8 .
  • a reception beam of an antenna eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ) may be adjusted.
  • a Pcell 1501 and a plurality of Scells are set according to carrier aggregation (CA) in a wireless communication system.
  • the processor 720 receives DCI from the base station 110 through the control resource set (CORESET) of the downlink control channel of the Pcell 1501 and/or the Scell 1502 and/or 1503 according to whether cross-carrier scheduling is set.
  • a PDCCH including a (downlink control information) format may be received.
  • Pcell may be configured in a band below 6 GHz (below 6-GHz) and Scell may be configured in a band above 6 GHz (above 6-GHz), but is not limited thereto. It may be variously configured as follows. For example, among the three carriers, Pcell uses subcarrier spacing of 30 kHz spacing in frequency bands below 6 GHz, and Scell uses subcarrier spacing of 60 kHz in frequency bands above 6 GHz. In the case of using , two slots may be received in the Scell while one slot is received in the Pcell.
  • the processor 720 determines the value of the DAI field included in the DCI format received through the control region of the downlink control channel of the Pcell 1501 and the Scell 1502 and 1503 configured in the electronic device 701 ( By checking 1510 and 1520 , PDCCH scheduling information received through the control region of each of the downlink control channels of the Pcell 1501 and the Scell 1502 and 1503 can be checked.
  • the processor 720 may set the reception beams for receiving the PDCCH of the Scell 71 1502 and the Scell 72 1503 to be the first reception beam 1505 and the second reception beam 1506, respectively. have.
  • the processor 720 may receive the PDCCH of the Scell 71 1502 using the first receive beam 1505 during the first and second slot reception times of the Pcell, and use the second receive beam 1506 for the same time.
  • the PDCCH of Scell 72 1503 may be received.
  • the DAI field may include two fields including a counter DAI value 1510 and a total DAI value 1520 .
  • the processor 720 monitors the received PDCCH, for example, during the time that the second slot 1504 of the Pcell 1501 is received, and detects the DAI field from the PDCCH received through the Pcell 1501 .
  • the total DAI value 1520 is 7 and the counter DAI value 1510 is 5.
  • the counter DAI value is from 5
  • the DAI field including (6,7) and (7,7) as field values is received through the PDCCH of Scell 71 (1501) and/or Scell 72 (1503). know that it will be
  • the processor 720 monitors the PDCCH for a time when the second slot 1504 of the Pcell is received, and checks the value of the received DAI field until the time when the reception of the second slot 1504 is completed ( It can be confirmed that the DAI field having the DAI field value of 6,7) is not received, and accordingly, it is determined that the PDCCH 1530 including the corresponding DAI field (6,7) is missing. can
  • the processor 720 may separately monitor the reception of the PDCCH of the Scell 71 1502 and the Scell 72 1503, respectively.
  • the processor 720 may confirm ( 1550 ) that the PDCCH 1530 is missing from the control region of the Scell 71 1502 .
  • the processor 720 may confirm (1550) that the PDCCH 1530 including the DAI field value (6,7) is missing, and accordingly, an event designated for the Scell 71 (1502) occurs. It can be confirmed that
  • the processor 720 is configured for at least one antenna (eg, the first antenna module 842 , the second antenna module 844 and/or the third antenna module 846 of FIG. 8 ).
  • the first receive beam 1505 for the Scell 71 1502 in which the PDCCH 1530 is missing among the receive beams of may be changed to another third receive beam 1507 .
  • the processor 720 re-performs the RS measurement (reference signal measurement) and adjusts the reception beam by newly determining the best reception beam based on this, or another based on the previously performed RS measurement.
  • the receive beam may be adjusted as the receive beam.
  • the processor 720 may change the reception beam to a reception beam next to the best reception beam determined through a previous RS measurement.
  • the processor 720 may maintain the same second reception beam 1506 without changing the current second reception beam 1506 for the Scell 72 1503 set in the electronic device 701 .
  • the processor 720 may monitor the PDCCH received through the next slot using the received beam 1507 adjusted according to the reception beam adjustment.

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

Abstract

Un dispositif électronique selon divers modes de réalisation décrits dans la présente invention comprend une ou plusieurs antennes, un circuit de communication et un processeur connecté fonctionnellement au circuit de communication, le processeur pouvant être configuré pour : surveiller un canal de commande de liaison descendante physique (PDCCH) pour une durée désignée à partir d'une station de base en fonction de la configuration de zone de commande d'un canal de commande de liaison descendante d'une ou de plusieurs cellules de desserte ; confirmer un champ d'indice d'attribution de liaison descendante (DAI) inclus dans le PDCCH reçu selon le résultat de surveillance ; et ajuster au moins certains faisceaux de réception de la ou des antennes pour au moins une partie de la ou des cellules de desserte, si un évènement désigné se produit.
PCT/KR2022/002326 2021-03-02 2022-02-17 Procédé et dispositif de gestion de faisceau de réception à base de dai dans un système de communication WO2022186522A1 (fr)

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US20180368004A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Qcl indication by ue-beam based tagging
KR102150444B1 (ko) * 2015-07-01 2020-09-01 엘지전자 주식회사 무선 통신 시스템에서 신호의 전송 방법 및 장치
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US20180368004A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Qcl indication by ue-beam based tagging
EP3780847A1 (fr) * 2018-05-25 2021-02-17 Huawei Technologies Co., Ltd. Procédé de communication, dispositif terminal, et dispositif de réseau

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