WO2023058229A1 - Dispositif de communication et procédé de communication - Google Patents

Dispositif de communication et procédé de communication Download PDF

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Publication number
WO2023058229A1
WO2023058229A1 PCT/JP2021/037371 JP2021037371W WO2023058229A1 WO 2023058229 A1 WO2023058229 A1 WO 2023058229A1 JP 2021037371 W JP2021037371 W JP 2021037371W WO 2023058229 A1 WO2023058229 A1 WO 2023058229A1
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Prior art keywords
communication device
symbols
communication
signal
information
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PCT/JP2021/037371
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English (en)
Japanese (ja)
Inventor
尚哉 芝池
大輔 栗田
浩樹 原田
聡 永田
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株式会社Ｎｔｔドコモ
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Priority to JP2023552661A priority Critical patent/JPWO2023058229A1/ja
Priority to PCT/JP2021/037371 priority patent/WO2023058229A1/fr
Publication of WO2023058229A1 publication Critical patent/WO2023058229A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a communication device and communication method in a wireless communication system.
  • NR New Radio
  • LTE Long Term Evolution
  • Non-Patent Document 2 is considering using a higher frequency band than previous releases (eg, Non-Patent Document 2).
  • a higher frequency band eg., Non-Patent Document 2.
  • applicable numerology including subcarrier spacing, channel bandwidth, etc., physical layer design, possible obstacles in actual wireless communication, etc. are being studied.
  • IAB nodes are communication equipment to support wireless backhaul and relay links that allow flexible and very dense deployment of NR cells without the need to densify the wired transport network.
  • the IAB node includes an MT (Mobile Termination) having terminal functions on the backhaul link and a DU (Distributed Unit) having base station functions on the access link.
  • MT Mobile Termination
  • DU Distributed Unit
  • the IAB node needs to report information on the number of superimposed symbols to the parent node in order to avoid mismatch between MT and DU resources due to propagation delay.
  • the information on the number of guard symbols set as information on the number of symbols superimposed on the MAC-CE corresponds to a large subcarrier spacing supported in high frequency bands, such as from 52.6 GHz to 71 GHz. not, so it needs to be extended.
  • the present invention has been made in view of the above points, and aims to apply a wireless communication system to a high frequency band.
  • a receiving unit that receives a signal of a backhaul link from a first communication device by wireless communication, and a second communication device different from the first communication device, the received backhaul link and the signal received from the first communication device and the second communication based on setting information of the number of symbols for each subcarrier interval including a subcarrier interval larger than a reference value and a controller for assuming the number of symbols to be superimposed with the signal sent to the device.
  • a technique that enables a wireless communication system to be applied to a high frequency band.
  • FIG. 1 is a diagram for explaining a radio communication system according to an embodiment of the present invention
  • FIG. It is a figure which shows the example of the frequency range in embodiment of this invention.
  • 1 is a first diagram for explaining a wireless communication system using an IAB node
  • FIG. 2 is a second diagram for explaining a wireless communication system using IAB nodes
  • FIG. 10 is a first diagram for explaining the number of superimposed symbols in an IAB node
  • FIG. 10 is a second diagram for explaining the number of superimposed symbols in an IAB node
  • FIG. 4 is a first diagram for explaining propagation delays at IAB nodes
  • FIG. 10 is a second diagram for explaining propagation delays at IAB nodes
  • FIG. 10 is a diagram showing an example of conventional setting of the number of guard symbols;
  • FIG. 2 is a diagram showing an example of setting subcarrier intervals for the number of conventional guard symbols;
  • FIG. 10 is a diagram showing an example of setting the number of guard symbols according to Option 1-1 of Example 1;
  • FIG. 10 is a diagram showing an example of setting subcarrier intervals according to Option 1-1 of Example 1;
  • FIG. 10 is a diagram showing an example of setting the number of guard symbols according to Option 1-1′ of Example 1;
  • FIG. 10 is a diagram showing an example of setting subcarrier intervals according to Option 1-2 of Example 1;
  • FIG. 10 is a diagram showing an example of setting subcarrier intervals according to Option 1-3 of Example 1;
  • FIG. 12 is a diagram for explaining setting values of the number of guard symbols according to Option 1 of Example 2;
  • FIG. 10 is a diagram for explaining setting values of the number of guard symbols according to Option 2 of Example 2;
  • FIG. 13 is a diagram for explaining offset values of the number of guard symbols according to Option 2 of Example 2;
  • FIG. 10 is a diagram for explaining setting values of the number of guard symbols according to Option 3 of Example 2; It is a figure which shows an example of functional structure of the communication apparatus in embodiment of this invention. It is a figure which shows an example of the hardware constitutions of the communication apparatus in embodiment of this invention. It is a figure showing an example of composition of vehicles in an embodiment of the invention.
  • existing technology may be used as appropriate.
  • the existing technology is, for example, existing NR or LTE, but is not limited to existing NR or LTE.
  • LTE Long Term Evolution
  • LTE-Advanced and LTE-Advanced and subsequent systems eg, NR
  • SS Synchronization signal
  • PSS Primary SS
  • SSS Secondary SS
  • PBCH Physical broadcast channel
  • PRACH Physical random access channel
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the duplex system may be a TDD (Time Division Duplex) system, an FDD (Frequency Division Duplex) system, or other (for example, Flexible Duplex etc.) method may be used.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • configure of wireless parameters and the like may mean that predetermined values are pre-configured (pre-configured).
  • the wireless parameters notified from may be set.
  • FIG. 1 is a diagram for explaining a radio communication system according to an embodiment of the present invention.
  • a radio communication system according to an embodiment of the present invention includes a base station 10 and a terminal 20, as shown in FIG. Although one base station 10 and one terminal 20 are shown in FIG. 1, this is an example and there may be more than one.
  • the base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20.
  • Physical resources of radio signals are defined in the time domain and the frequency domain.
  • the time domain may be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain is defined by the number of subcarriers or resource blocks. good too.
  • a TTI Transmission Time Interval
  • a slot or a TTI may be a subframe.
  • the base station 10 transmits the synchronization signal and system information to the terminal 20.
  • Synchronization signals are, for example, NR-PSS and NR-SSS.
  • the system information is transmitted by, for example, NR-PBCH, and is also called broadcast information.
  • the synchronization signal and system information may be called SSB (SS/PBCH block).
  • the base station 10 transmits control signals or data to the terminal 20 on DL (Downlink) and receives control signals or data from the terminal 20 on UL (Uplink).
  • Both the base station 10 and the terminal 20 can perform beamforming to transmit and receive signals.
  • both the base station 10 and the terminal 20 can apply MIMO (Multiple Input Multiple Output) communication to DL or UL.
  • MIMO Multiple Input Multiple Output
  • both the base station 10 and the terminal 20 may communicate via a secondary cell (SCell: Secondary Cell) and a primary cell (PCell: Primary Cell) by CA (Carrier Aggregation).
  • SCell Secondary Cell
  • PCell Primary Cell
  • CA Carrier Aggregation
  • the terminal 20 may communicate via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell: Primary SCG Cell) of another base station 10 by DC (Dual Connectivity).
  • DC Dual Connectivity
  • the terminal 20 is a communication device with a wireless communication function, such as a smartphone, mobile phone, tablet, wearable terminal, or M2M (Machine-to-Machine) communication module. As shown in FIG. 1 , the terminal 20 receives control signals or data from the base station 10 on the DL and transmits control signals or data to the base station 10 on the UL, thereby performing various functions provided by the wireless communication system. Use communication services. Also, the terminal 20 receives various reference signals transmitted from the base station 10, and measures channel quality based on the reception result of the reference signals. Note that the terminal 20 may be called UE, and the base station 10 may be called gNB.
  • FIG. 2 is a diagram showing an example of frequency ranges in the embodiment of the present invention.
  • FR Frequency range 1 1
  • SCS Sub carrier spacing
  • the bandwidth is from 5 MHz to 100 MHz.
  • FR2-1 is a frequency band from 24.25 GHz to 52.6 GHz
  • SCS uses 60, 120 or 240 kHz with a bandwidth of 50 MHz to 400 MHz.
  • FR2-2 which is a newly operated frequency band, is a frequency band from 52.6 GHz to 71 GHz.
  • up to 64 SSB beams may be supported in licensed and unlicensed bands.
  • 120 kHz SCS applied to SSB and 120 kHz SCS applied to signals and channels related to initial access may be supported.
  • SSB at 480 kHz SCS may be supported in addition to 120 kHz SCS.
  • the SSB may perform initial access to support CORESET (Control Resource Set) #0/Type0-PDCCH contained in the MIB.
  • CORESET Control Resource Set
  • the following restrictions may apply.
  • the entry number of a synchronization raster may be restricted.
  • CORESET#0/Type 0-PDCCH of 480 kHz SCS may be supported.
  • SSB-CORESET multiplexing pattern 1 (SS/PBCH block and CORESET multiplexing pattern 1) may be preferred.
  • CORESET#0/Type 0-PDCCH included in the SSB MIB of 120 kHz SCS, 480 kHz SCS and 960 kHz SCS may be supported.
  • one SCS of CORESET#0/Type0-PDCCH may be supported per SCS of SSB.
  • ⁇ SCS of SSB, CORESET#0/SCS of Type0-PDCCH ⁇ may support ⁇ 120, 120 ⁇ , ⁇ 480, 480 ⁇ , ⁇ 960, 960 ⁇ .
  • SSB-CORESET multiplexing pattern 1 may be preferred.
  • FIG. 3 is a first diagram for explaining a wireless communication system using IAB (Integrated access and backhaul) nodes.
  • IAB nodes are communication equipment to support wireless backhaul and relay links that allow flexible and very dense deployment of NR cells without the need to densify the wired transport network.
  • the IAB node includes an MT (Mobile Termination) having terminal functions on the backhaul link and a DU (Distributed Unit) having base station functions on the access link.
  • MT Mobile Termination
  • DU Distributed Unit
  • IAB nodes operate MT and DU by Time Division Duplex (TDD). IAB nodes are considered to be used in stationary locations.
  • TDD Time Division Duplex
  • FIG. 4 is a second diagram for explaining a wireless communication system using IAB nodes.
  • the parent node 30B is a communication device (first communication device) having a function as a base station for the terminal function of the MT of the IAB node 30A.
  • Parent node 30B is, for example, a donor node.
  • a donor node is a communication device that does not have a parent node, and includes, for example, a CU (Central Unit) and a DU.
  • CU Central Unit
  • the DU of the parent node 30B wirelessly communicates with the MT of the IAB node 30A via the backhaul link, and wirelessly communicates with the terminal 20 via the access link.
  • the child node 30C is a communication device (second communication device) having a function as a terminal for the base station function of the DU of the IAB node 30A.
  • the DU included in the IAB node 30A wirelessly communicates with the MT of the child node 30C via the backhaul link, and wirelessly communicates with the terminal 20 via the access link.
  • FIG. 5 is a first diagram for explaining the number of superimposed symbols in an IAB node.
  • the downlink signal received by the MT of the IAB node 30A from the parent node 30B and the uplink signal transmitted by the DU of the IAB node 30A to the child node 30C are overlapped by several symbols due to propagation delay.
  • FIG. 6 is a second diagram for explaining the number of superimposed symbols in an IAB node.
  • the downlink signal received by the MT of the IAB node 30A from the parent node 30B and the uplink signal transmitted by the DU of the IAB node 30A to the child node 30C are different from each other by a propagation delay. symbol is superimposed.
  • the IAB node 30A needs to report information on the number of superimposed symbols to the parent node 30B.
  • guard symbols the number of symbols not used for MT (hereinafter referred to as guard symbols) and the number of guard symbols is provided to the MT by guard symbols MAC-CE.
  • FIG. 7 is a first diagram for explaining propagation delays at IAB nodes.
  • IAB node 30A In order to adjust the downlink transmission timing (T0) between parent node 30B and IAB node 30A, IAB node 30A needs to know the time of propagation delay (T propagation ) between parent node 30B and IAB node A. There is
  • FIG. 8 is a second diagram for explaining the propagation delay at the IAB node.
  • T propagation is calculated by (TA-Tg)/2.
  • TA is the timing gap between the uplink transmission timing and the downlink reception timing at the IAB node 30A.
  • Tg is the gap between downlink transmission and uplink reception at the parent node 30B to avoid overlap.
  • T TA and T ⁇ (Tg/2) are reported from parent node 30B to IAB node 30A.
  • the parent node 30B notifies the IAB node 30A of numerical information that is the basis of the calculation of T propagation .
  • FIG. 9 is a diagram showing an example of conventional setting of the number of guard symbols. Specifically, FIG. 9 shows an example of guard symbol MAC-CE for setting the number of guard symbols, which has already been considered in NR.
  • the card symbol MAC-CE consists of 4 octets (8 bits).
  • the first octet consists of a 1-bit item 'R', a 5-bit item 'ServingCellID', and a 2-bit item 'SCS'.
  • Item “R” is a reserved bit.
  • the value of the item “R” is set to 0 as a fixed value.
  • the value of the item “ServingCellID” is the ID of the serving cell to which MAC-CE is applied.
  • the value of the item “SCS” is the subcarrier interval used as a reference for guard intervals (intervals corresponding to the number of guard symbols). Possible values and contents of the item “SCS" will be described later.
  • the three octets from the second octet to the fourth octet consist of eight 3-bit items "NmbGS*".
  • * is a value from 1 to 8.
  • the value of each item "NmbGS*" is the number of guard symbols.
  • the number of guard symbols can range from 0 to 4. Values from 5 to 7 are reserved values and cannot be taken.
  • FIG. 10 is a diagram showing an example of conventional setting of subcarrier intervals for the number of guard symbols. Specifically, FIG. 10 shows possible values of the item “SCS” in the guard symbol MAC-CE described above and the contents of each value. For example, when the value of the item “SCS” is "11", it indicates that the subcarrier spacing is 120 kHz.
  • the conventional guard symbol MAC-CE does not have a subcarrier spacing of greater than 120 kHz, which corresponds to the high frequency band of FR2-2. Also, in the case of the high frequency band of FR2-2, it is assumed that the number of guard symbols larger than 4 needs to be set.
  • the present embodiment shows a method of making the guard symbol MAC-CE correspond to the high frequency band of FR2-2. Specifically, as Example 1, a method of making guard symbols MAC-CE correspond to subcarrier intervals greater than 120 kHz will be shown. Also, as a second embodiment, a method for enabling setting of a larger number of guard symbols than the conventional one will be shown.
  • 52.6 GHz is an example of a reference value indicating the high frequency band of FR2-2. This embodiment may be applied to a high frequency band of 71 GHz or higher. Also, 120 kHz is an example of a reference value indicating a large subcarrier spacing. This embodiment may be applied for subcarrier spacing greater than 960 kHz.
  • Example 1 In this embodiment, a method is shown in which guard symbols MAC-CE are made to correspond to subcarrier spacings greater than 120 kHz.
  • the reserved bit term contained in the first octet of the guard symbol MAC-CE may be used together with the existing subcarrier spacing term to specify the subcarrier spacing.
  • FIG. 11 is a diagram showing an example of setting the number of guard symbols according to option 1-1 of the first embodiment.
  • the 1-bit item "SCSext" is an extended item for setting subcarrier intervals.
  • the setting of the subcarrier interval uses a 3-bit value in which the 1-bit item "SCSext" is the value of the first bit and the 2-bit item “SCS" is the value of the second and third bits.
  • FIG. 12 is a diagram showing an example of setting subcarrier intervals according to option 1-1 of the first embodiment.
  • the subcarrier spacing for each 3-bit value described above is shown. For example, when the value of the item "SCSext" is 1 and the value of the item “SCS” is "01", it indicates that the subcarrier spacing is 480 kHz corresponding to the 3-bit value "101" indicating the subcarrier spacing. ing.
  • the 3-bit value "111” may be reserved and cannot be used. Note that a 3-bit value “111” may be used, and the subcarrier spacing may be 1920 kHz, for example.
  • the value of the item "SCSext" is the most significant bit of the value indicating the subcarrier interval. It may be the least significant bit of the value indicating the subcarrier interval.
  • Option 1-1 may be applied to an existing guard symbol MAC-CE or to a new MAC-CE.
  • option 1-1 designation of a larger subcarrier spacing is integrated in addition to the existing subcarrier spacing. That is, it does not affect the operation of existing IAB nodes.
  • Option 1-1 item "SCSext" and the existing item “SCS” may be concatenated.
  • FIG. 13 is a diagram showing an example of setting the number of guard symbols according to option 1-1' of the first embodiment.
  • the first octet of the guard symbol MAC-CE related to Option 1-1′ is composed of a 5-bit item “SerivingCellID” and a 3-bit item “SCS”.
  • ⁇ Option 1-2> It may be possible to set candidates for the subcarrier spacing.
  • the item of guard symbol MAC-CE may be the conventionally studied one shown in FIG.
  • the setting of the subcarrier spacing may be changed from the conventional example shown in FIG.
  • FIG. 14 is a diagram showing an example of setting subcarrier intervals according to option 1-2 of the first embodiment.
  • the exact subcarrier spacing corresponding to SCS_0 through SCS_3 can be set by at least one of the following.
  • RRC 2. MAC-CE (which can be the same as or different from the guard symbol MAC-CE) 3.
  • DCI 4. terminal capability signaling
  • terminal capability signaling may indicate support for subcarrier spacing for terminal operation.
  • Option 1-2 may be applied to the existing guard symbol MAC-CE or may be applied to the new MAC-CE.
  • designation of a larger subcarrier interval is integrated in addition to the existing subcarrier interval without changing the conventional MAC-CE items.
  • a MAC-CE for larger subcarrier spacing than conventional may be added.
  • guard symbol MAC-CE item may be the conventionally studied one shown in FIG.
  • setting of the subcarrier spacing may be changed from the conventional example shown in FIG.
  • FIG. 15 is a diagram showing an example of setting subcarrier intervals according to option 1-3 of the first embodiment. Specifically, FIG. 15 shows possible values of the item “SCS” in the guard symbol MAC-CE described above and the contents of each value. For example, when the value of the item “SCS” is "11", it indicates that the subcarrier spacing is 960 kHz. That is, a larger subcarrier spacing corresponds to the same value as the conventional setting of FIG.
  • FIG. 15 shows settings where the subcarrier interval is from 120 kHz to 960 kHz, others are possible.
  • the subcarrier interval may be set from 240 kHz to 1920 kHz, the subcarrier interval may be set to be selected from 120 kHz, 480 kHz and 960 kHz, and the item "SCS" value "11" may be reserved.
  • the subcarrier spacing may be specified by a specification method including a larger value.
  • guard symbols MAC-CE can be made to correspond to subcarrier intervals greater than 120 kHz.
  • Example 2 In this embodiment, a method for enabling setting of a larger number of guard symbols than the conventional one will be described.
  • FIG. 16 is a diagram for explaining setting values for the number of guard symbols according to option 1 of the second embodiment.
  • the values "101", “110” and “111" of the item "NmbGS*" indicate guard symbol numbers 5, 6 and 7, respectively.
  • more symbols can be set as guard symbols. This is suitable for operation with larger subcarrier spacing.
  • FIG. 17 is a diagram for explaining setting values for the number of guard symbols according to option 2 of the second embodiment.
  • the number of guard symbols corresponding to each set value is a value including x.
  • x is the offset value of the number of guard symbols. That is, the value obtained by adding the offset value to the conventional number of guard symbols is the new number of guard symbols.
  • FIG. 18 is a diagram for explaining the offset value of the number of guard symbols according to option 2 of the second embodiment.
  • the offset value may be defined in the specification. In this case, the offset value may be defined for each subcarrier interval or for each frequency band.
  • the offset value may be set by RRC.
  • the offset value may be specified by MAC-CE.
  • An offset value may be specified by DCI.
  • ⁇ Option 2-2> A reserved value may be released.
  • the offset value may be defined in combination with the definition of the number of guard symbols in option 1 shown in FIG. For example, when the NmbGS* value is "111", the number of guard symbols may be "7+x".
  • the number of guard symbols that can be set can be adjusted according to the operation.
  • FIG. 19 is a diagram for explaining setting values for the number of guard symbols according to option 3 of the second embodiment.
  • the values '000' to '100' of the item 'NmbGS*' indicate 5 to 9 guard symbols.
  • Option 3-1-1 The cases where the new definition of Option 3 is used may be set by RRC, MAC-CE or DCI.
  • a special condition may be the cases where the new definition of Option 3 is used.
  • the new definition may be used only for the FR2-2 frequency band.
  • the new definition may be used only for subcarrier intervals of at least one of 480 kHz and 960 kHz.
  • the offset value may be defined in combination with the definition of the number of guard symbols in option 1 shown in FIG. For example, when the NmbGS* value is "111", the number of guard symbols may be "12".
  • the method according to the present embodiment may be limited to a specific frequency band (eg, FR2-2), and a specific subcarrier spacing (at least one of 480 kHz and 960 kHz). You may do so.
  • a specific frequency band eg, FR2-2
  • a specific subcarrier spacing at least one of 480 kHz and 960 kHz. You may do so.
  • the method according to the present embodiment may be limited to terminals (or IAB nodes having terminal capabilities) that have transmitted specific terminal capability signaling. For example, it may be limited to terminals (or IAB nodes with terminal capabilities) that report support for operation in the 52.6-71 GHz frequency band. Also, it may be limited to terminals (or IAB nodes having terminal functions) that have reported support for subcarrier spacing of at least one of 480 kHz and 960 kHz.
  • the communication device includes functionality to perform the embodiments described above. However, each communication device may include only the functionality suggested by any of the embodiments.
  • FIG. 20 is a diagram showing an example of the functional configuration of a communication device.
  • the communication device has a transmitter 110 , a receiver 120 , a setter 130 and a controller 140 .
  • the functional configuration shown in FIG. 20 is merely an example. As long as the operation according to the embodiment of the present invention can be executed, the functional division and the names of the functional units may be arbitrary.
  • the transmitting unit 110 and the receiving unit 120 may be called a communication unit.
  • the transmission unit 110 includes a function of generating a signal to be transmitted to another communication device and wirelessly transmitting the signal.
  • the receiving unit 120 includes a function of receiving various signals transmitted from other communication devices and acquiring, for example, higher layer information from the received signals.
  • the transmission unit 110 has a function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL/UL control signals, DL data, etc. to other communication devices.
  • the transmission unit 110 transmits the setting information and the like described in the embodiment.
  • the transmitting unit 110 transmits HARQ-ACK, and the receiving unit 120 receives the setting information and the like described in the embodiment.
  • the setting unit 130 stores preset setting information and various setting information to be transmitted to other communication devices in a storage device, and reads them from the storage device as necessary. Also, the setting unit 130 stores various setting information received from another communication device by the receiving unit 120 in the storage device, and reads the information from the storage device as necessary. The setting unit 230 also stores preset setting information.
  • the control unit 140 controls the entire communication device including control related to signal transmission/reception. It should be noted that the functional unit related to signal transmission in control unit 140 may be included in transmitting unit 110 , and the functional unit related to signal reception in control unit 140 may be included in receiving unit 120 . Also, the transmitting unit 110 and the receiving unit 120 may be called a transmitter and a receiver, respectively.
  • the communication device of this embodiment may be configured as a communication device shown in each section below. Also, the following communication methods may be implemented.
  • (Section 1) a receiving unit that receives a backhaul link signal from the first communication device by wireless communication; A transmitting unit that transmits the received backhaul link signal to a second communication device different from the first communication device; Between the signal received from the first communication device and the signal to be transmitted to the second communication device, based on setting information of the number of symbols for each subcarrier interval including subcarrier intervals larger than a reference value a controller that assumes the number of symbols to be superimposed in Communication device. (Section 2) The setting information includes information for setting the number of symbols for each subcarrier interval that is equal to or less than the reference value, and information for setting the number of symbols for each subcarrier interval that is larger than the reference value.
  • a communication device according to claim 1.
  • the setting information includes settings of a number larger than the number of symbols corresponding to subcarrier intervals equal to or less than the reference value, 3.
  • the setting information includes setting a number obtained by adding an offset value according to the subcarrier interval or frequency band to the number of symbols corresponding to the subcarrier interval equal to or less than the reference value, A communication device according to claim 3.
  • (Section 5) wirelessly receiving a backhaul link signal from a first communication device; transmitting the received backhaul link signal to a second communication device different from the first communication device; Between the signal received from the first communication device and the signal to be transmitted to the second communication device, based on setting information of the number of symbols for each subcarrier interval including subcarrier intervals larger than a reference value assuming the number of symbols superimposed in A communication method performed by a communication device.
  • any of the above configurations provides a technology that enables a wireless communication system to be applied to high frequency bands.
  • the second term it is possible to use both information for setting the number of symbols for each subcarrier interval that is equal to or less than the reference value and information for setting the number of symbols for each subcarrier interval that is larger than the reference value.
  • the third term it is possible to realize setting of a number larger than the number of symbols corresponding to subcarrier intervals equal to or less than the reference value.
  • the fourth term it is possible to set a number larger than the number of symbols corresponding to the subcarrier spacing equal to or smaller than the reference value, by using the offset value according to the subcarrier spacing or the frequency band.
  • each functional block may be implemented using one device that is physically or logically coupled, or directly or indirectly using two or more devices that are physically or logically separated (e.g. , wired, wireless, etc.) and may be implemented using these multiple devices.
  • a functional block may be implemented by combining software in the one device or the plurality of devices.
  • Functions include judging, determining, determining, calculating, calculating, processing, deriving, investigating, searching, checking, receiving, transmitting, outputting, accessing, resolving, selecting, choosing, establishing, comparing, assuming, expecting, assuming, Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc. can't
  • a functional block (component) that performs transmission is called a transmitting unit or transmitter.
  • the implementation method is not particularly limited.
  • a communication device may function as a computer that performs processing of the wireless communication method of the present disclosure.
  • 21 is a diagram illustrating an example of a hardware configuration of a communication device according to an embodiment of the present disclosure; FIG.
  • the communication device described above may be physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.
  • the term "apparatus” can be read as a circuit, device, unit, or the like.
  • the hardware configuration of the communication device may be configured to include one or more of each device shown in the figure, or may be configured without some of the devices.
  • Each function of the communication device is performed by causing the processor 1001 to perform calculations, controlling communication by the communication device 1004, and controlling communication by the communication device 1004 by loading predetermined software (programs) onto hardware such as the processor 1001 and the storage device 1002. It is realized by controlling at least one of data reading and writing in 1002 and auxiliary storage device 1003 .
  • the processor 1001 for example, operates an operating system and controls the entire computer.
  • the processor 1001 may be configured with a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like.
  • CPU central processing unit
  • the control unit 140 , the control unit 240 and the like described above may be implemented by the processor 1001 .
  • the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and executes various processes according to them.
  • programs program codes
  • software modules software modules
  • data etc.
  • the control unit 140 of the communication device shown in FIG. 20 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001.
  • FIG. 10 Although it has been explained that the above-described various processes are executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001.
  • FIG. Processor 1001 may be implemented by one or more chips. Note that the program may be transmitted from a network via an electric communication line.
  • the storage device 1002 is a computer-readable recording medium, for example, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. may be configured.
  • the storage device 1002 may also be called a register, cache, main memory (main storage device), or the like.
  • the storage device 1002 can store executable programs (program code), software modules, etc. for implementing a communication method according to an embodiment of the present disclosure.
  • the auxiliary storage device 1003 is a computer-readable recording medium, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu -ray disk), smart card, flash memory (eg, card, stick, key drive), floppy disk, magnetic strip, and/or the like.
  • the storage medium described above may be, for example, a database, server, or other suitable medium including at least one of storage device 1002 and secondary storage device 1003 .
  • the communication device 1004 is hardware (transmitting/receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 includes a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to realize at least one of, for example, frequency division duplex (FDD) and time division duplex (TDD).
  • FDD frequency division duplex
  • TDD time division duplex
  • the transceiver may be physically or logically separate implementations for the transmitter and receiver.
  • the input device 1005 is an input device (for example, keyboard, mouse, microphone, switch, button, sensor, etc.) that receives input from the outside.
  • the output device 1006 is an output device (for example, display, speaker, LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • Each device such as the processor 1001 and the storage device 1002 is connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using different buses between devices.
  • the communication device includes hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array).
  • DSP digital signal processor
  • ASIC Application Specific Integrated Circuit
  • PLD Physical Location Deposition
  • FPGA Field Programmable Gate Array
  • a part or all of each functional block may be implemented by the hardware.
  • processor 1001 may be implemented using at least one of these pieces of hardware.
  • a vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, and various sensors 2021-2029. , an information service unit 2012 and a communication module 2013 .
  • Each aspect/embodiment described in the present disclosure may be applied to a communication device mounted on vehicle 2001, and may be applied to communication module 2013, for example.
  • the driving unit 2002 is configured by, for example, an engine, a motor, or a hybrid of the engine and the motor.
  • the steering unit 2003 includes at least a steering wheel (also referred to as steering wheel), and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.
  • the electronic control unit 2010 is composed of a microprocessor 2031 , a memory (ROM, RAM) 2032 and a communication port (IO port) 2033 . Signals from various sensors 2021 to 2029 provided in the vehicle 2001 are input to the electronic control unit 2010 .
  • the electronic control unit 2010 may also be called an ECU (Electronic Control Unit).
  • the signals from the various sensors 2021 to 2029 include the current signal from the current sensor 2021 that senses the current of the motor, the rotation speed signal of the front and rear wheels acquired by the rotation speed sensor 2022, and the front wheel acquired by the air pressure sensor 2023. and rear wheel air pressure signal, vehicle speed signal obtained by vehicle speed sensor 2024, acceleration signal obtained by acceleration sensor 2025, accelerator pedal depression amount signal obtained by accelerator pedal sensor 2029, brake pedal sensor 2026 obtained by There are a brake pedal depression amount signal, a shift lever operation signal acquired by the shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. acquired by the object detection sensor 2028, and the like.
  • the information service unit 2012 includes various devices such as car navigation systems, audio systems, speakers, televisions, and radios for providing various types of information such as driving information, traffic information, and entertainment information, and one or more devices for controlling these devices. ECU.
  • the information service unit 2012 uses information acquired from an external device via the communication module 2013 or the like to provide passengers of the vehicle 2001 with various multimedia information and multimedia services.
  • Driving support system unit 2030 includes millimeter wave radar, LiDAR (Light Detection and Ranging), camera, positioning locator (e.g., GNSS, etc.), map information (e.g., high-definition (HD) map, automatic driving vehicle (AV) map, etc. ), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, AI processors, etc., to prevent accidents and reduce the driver's driving load. and one or more ECUs for controlling these devices.
  • the driving support system unit 2030 transmits and receives various information via the communication module 2013, and realizes a driving support function or an automatic driving function.
  • the communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via communication ports.
  • the communication module 2013 communicates with the vehicle 2001 through the communication port 2033, the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axle 2009, the electronic Data is transmitted and received between the microprocessor 2031 and memory (ROM, RAM) 2032 in the control unit 2010 and the sensors 2021-29.
  • the communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from an external device via wireless communication.
  • Communication module 2013 may be internal or external to electronic control unit 2010 .
  • the external device may be, for example, a base station, a mobile station, or the like.
  • the communication module 2013 transmits the current signal from the current sensor input to the electronic control unit 2010 to an external device via wireless communication.
  • the communication module 2013 receives the rotation speed signal of the front and rear wheels obtained by the rotation speed sensor 2022, the air pressure signal of the front and rear wheels obtained by the air pressure sensor 2023, and the vehicle speed sensor. 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, and a shift lever.
  • a shift lever operation signal obtained by the sensor 2027 and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 2028 are also transmitted to an external device via wireless communication.
  • the communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from external devices, and displays it on the information service unit 2012 provided in the vehicle 2001 .
  • Communication module 2013 also stores various information received from external devices in memory 2032 available to microprocessor 2031 .
  • the microprocessor 2031 controls the drive unit 2002, the steering unit 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, and the axle 2009 provided in the vehicle 2001.
  • sensors 2021 to 2029 and the like may be controlled.
  • the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
  • the processing order may be changed as long as there is no contradiction.
  • the base station 10 and the terminal 20 have been described using functional block diagrams for convenience of explanation of processing, such devices may be implemented in hardware, software, or a combination thereof.
  • the software operated by the processor of the base station 10 according to the embodiment of the present invention and the software operated by the processor of the terminal 20 according to the embodiment of the present invention are stored in random access memory (RAM), flash memory, read-only memory, respectively. (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server, or any other appropriate storage medium.
  • notification of information is not limited to the aspects/embodiments described in the present disclosure, and may be performed using other methods.
  • notification of information includes physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, It may be implemented by broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or a combination thereof.
  • RRC signaling may also be called an RRC message, for example, RRC It may be a connection setup (RRC Connection Setup) message, an RRC connection reconfiguration message, or the like.
  • Each aspect/embodiment described in the present disclosure includes LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system) system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer, a decimal number)), FRA (Future Radio Access), NR (new Radio), New radio access ( NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802 .16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), and other suitable systems, and any extensions, modifications, creations, and provisions based on these systems. It may be applied to
  • a specific operation performed by the base station 10 in this specification may be performed by its upper node in some cases.
  • various operations performed for communication with terminal 20 may be performed by base station 10 and other network nodes other than base station 10 (eg, but not limited to MME or S-GW).
  • base station 10 e.g, but not limited to MME or S-GW
  • the other network node may be a combination of a plurality of other network nodes (for example, MME and S-GW).
  • Information, signals, etc. described in the present disclosure may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may be input and output via multiple network nodes.
  • Input/output information may be stored in a specific location (for example, memory) or managed using a management table. Input/output information and the like can be overwritten, updated, or appended. The output information and the like may be deleted. The entered information and the like may be transmitted to another device.
  • the determination in the present disclosure may be performed by a value represented by 1 bit (0 or 1), may be performed by a boolean value (Boolean: true or false), or may be performed by comparing numerical values (e.g. , comparison with a predetermined value).
  • Software whether referred to as software, firmware, middleware, microcode, hardware description language or otherwise, includes instructions, instruction sets, code, code segments, program code, programs, subprograms, and software modules. , applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, functions, and the like.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • the software uses at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) to website, Wired and/or wireless technologies are included within the definition of transmission medium when sent from a server or other remote source.
  • wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may refer to voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. may be represented by a combination of
  • the channel and/or symbols may be signaling.
  • a signal may also be a message.
  • a component carrier may also be called a carrier frequency, a cell, a frequency carrier, or the like.
  • system and “network” used in this disclosure are used interchangeably.
  • information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values from a predetermined value, or may be expressed using other corresponding information.
  • radio resources may be indexed.
  • base station BS
  • radio base station base station
  • base station fixed station
  • NodeB nodeB
  • eNodeB eNodeB
  • gNodeB gNodeB
  • a base station can accommodate one or more (eg, three) cells.
  • the overall coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being associated with a base station subsystem (e.g., an indoor small base station (RRH:
  • RRH indoor small base station
  • the term "cell” or “sector” refers to part or all of the coverage area of at least one of the base stations and base station subsystems serving communication services in this coverage.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is defined by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless It may also be called a terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term.
  • At least one of the base station and mobile station may be called a transmitting device, a receiving device, a communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, or the like.
  • the mobile object may be a vehicle (e.g., car, airplane, etc.), an unmanned mobile object (e.g., drone, self-driving car, etc.), or a robot (manned or unmanned ).
  • at least one of the base station and the mobile station includes devices that do not necessarily move during communication operations.
  • at least one of the base station and mobile station may be an IoT (Internet of Things) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read as a user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of terminals 20 (for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.)
  • the terminal 20 may have the functions of the base station 10 described above.
  • words such as "up” and “down” may be replaced with words corresponding to inter-terminal communication (for example, "side”).
  • uplink channels, downlink channels, etc. may be read as side channels.
  • user terminals in the present disclosure may be read as base stations.
  • the base station may have the functions that the above-described user terminal has.
  • determining and “determining” used in this disclosure may encompass a wide variety of actions.
  • “Judgement” and “determination” are, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (eg, lookup in a table, database, or other data structure), ascertaining as “judged” or “determined”, and the like.
  • "judgment” and “determination” are used for receiving (e.g., receiving information), transmitting (e.g., transmitting information), input, output, access (accessing) (for example, accessing data in memory) may include deeming that a "judgment” or “decision” has been made.
  • judgment and “decision” are considered to be “judgment” and “decision” by resolving, selecting, choosing, establishing, comparing, etc. can contain.
  • judgment and “decision” may include considering that some action is “judgment” and “decision”.
  • judgment (decision) may be read as “assuming”, “expecting”, “considering”, or the like.
  • connection means any direct or indirect connection or coupling between two or more elements, It can include the presence of one or more intermediate elements between two elements being “connected” or “coupled.” Couplings or connections between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as "access”.
  • two elements are defined using at least one of one or more wires, cables, and printed electrical connections and, as some non-limiting and non-exhaustive examples, in the radio frequency domain. , electromagnetic energy having wavelengths in the microwave and optical (both visible and invisible) regions, and the like.
  • the reference signal can also be abbreviated as RS (Reference Signal), and may also be called Pilot depending on the applicable standard.
  • RS Reference Signal
  • any reference to elements using the "first,” “second,” etc. designations used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, reference to a first and second element does not imply that only two elements can be employed or that the first element must precede the second element in any way.
  • a radio frame may consist of one or more frames in the time domain. Each frame or frames in the time domain may be referred to as a subframe. A subframe may also consist of one or more slots in the time domain. A subframe may be of a fixed length of time (eg, 1 ms) independent of numerology.
  • a numerology may be a communication parameter that applies to the transmission and/or reception of a signal or channel. Numerology, for example, subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
  • SCS subcarrier spacing
  • TTI transmission time interval
  • transceiver It may indicate at least one of certain filtering operations performed in the frequency domain, certain windowing operations performed by the transceiver in the time domain, and/or the like.
  • a slot may consist of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain.
  • a slot may be a unit of time based on numerology.
  • a slot may contain multiple mini-slots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be referred to as a subslot. A minislot may consist of fewer symbols than a slot.
  • PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (or PUSCH) mapping type A.
  • PDSCH (or PUSCH) transmitted using minislots may be referred to as PDSCH (or PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots and symbols all represent time units when transmitting signals. Radio frames, subframes, slots, minislots and symbols may be referred to by other corresponding designations.
  • one subframe may be called a Transmission Time Interval (TTI)
  • TTI Transmission Time Interval
  • TTI Transmission Time Interval
  • TTI Transmission Time Interval
  • one slot or one minislot may be called a TTI.
  • TTI Transmission Time Interval
  • at least one of the subframe and TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (eg, 1-13 symbols), or a period longer than 1 ms may be Note that the unit representing the TTI may be called a slot, mini-slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum scheduling time unit in wireless communication.
  • the base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used by each terminal 20) to each terminal 20 on a TTI basis.
  • radio resources frequency bandwidth, transmission power, etc. that can be used by each terminal 20
  • TTI is not limited to this.
  • a TTI may be a transmission time unit such as a channel-encoded data packet (transport block), code block, or codeword, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, the time interval (for example, the number of symbols) in which transport blocks, code blocks, codewords, etc. are actually mapped may be shorter than the TTI.
  • one or more TTIs may be the minimum scheduling time unit. Also, the number of slots (the number of mini-slots) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, normal subframe, normal subframe, long subframe, slot, or the like.
  • a TTI that is shorter than a normal TTI may be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • the long TTI (e.g., normal TTI, subframe, etc.) may be replaced with a TTI having a time length exceeding 1 ms
  • the short TTI e.g., shortened TTI, etc.
  • a TTI having the above TTI length may be read instead.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain.
  • the number of subcarriers included in the RB may be the same regardless of the numerology, and may be 12, for example.
  • the number of subcarriers included in an RB may be determined based on numerology.
  • the time domain of an RB may include one or more symbols and may be 1 slot, 1 minislot, 1 subframe, or 1 TTI long.
  • One TTI, one subframe, etc. may each consist of one or more resource blocks.
  • One or more RBs are physical resource blocks (PRBs), sub-carrier groups (SCGs), resource element groups (REGs), PRB pairs, RB pairs, etc. may be called.
  • PRBs physical resource blocks
  • SCGs sub-carrier groups
  • REGs resource element groups
  • PRB pairs RB pairs, etc. may be called.
  • a resource block may be composed of one or more resource elements (RE: Resource Element).
  • RE Resource Element
  • 1 RE may be a radio resource region of 1 subcarrier and 1 symbol.
  • a bandwidth part (which may also be called a bandwidth part) may represent a subset of contiguous common resource blocks (RBs) for a certain numerology on a certain carrier.
  • the common RB may be identified by an RB index based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP may include a BWP for UL (UL BWP) and a BWP for DL (DL BWP).
  • UL BWP UL BWP
  • DL BWP DL BWP
  • One or more BWPs may be configured for terminal 20 within one carrier.
  • At least one of the configured BWPs may be active, and the terminal 20 may not expect to transmit or receive a given signal/channel outside the active BWP.
  • “cell”, “carrier”, etc. in the present disclosure may be read as "BWP”.
  • radio frames, subframes, slots, minislots and symbols described above are only examples.
  • the number of subframes contained in a radio frame the number of slots per subframe or radio frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, the number of Configurations such as the number of subcarriers, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.
  • CP cyclic prefix
  • a and B are different may mean “A and B are different from each other.”
  • the term may also mean that "A and B are different from C”.
  • Terms such as “separate,” “coupled,” etc. may also be interpreted in the same manner as “different.”
  • notification of predetermined information is not limited to being performed explicitly, but may be performed implicitly (for example, not notifying the predetermined information). good too.

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Abstract

Ce dispositif de communication comprend : une unité de réception qui reçoit un signal de liaison de raccordement (backhaul) provenant d'un premier dispositif de communication par communication sans fil ; une unité d'émission qui transmet le signal de liaison de raccordement reçu à un second dispositif de communication différent du premier dispositif de communication ; et une unité de commande qui, sur la base d'informations de réglage concernant les nombres respectifs de symboles pour des intervalles entre sous-porteuses y compris des intervalles entre sous-porteuses supérieurs à une valeur spécifiée, présume le nombre de symboles se chevauchant entre le signal reçu du premier dispositif de communication et le signal qui doit être transmis au second dispositif de communication.
PCT/JP2021/037371 2021-10-08 2021-10-08 Dispositif de communication et procédé de communication WO2023058229A1 (fr)

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JPH02256333A (ja) * 1988-12-13 1990-10-17 Shiyoudenriyoku Kosoku Tsushin Kenkyusho:Kk 無線通信システム
JP2011244198A (ja) * 2010-05-18 2011-12-01 Ntt Docomo Inc 無線通信システム
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