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WO2020026354A1 - Terminal utilisateur - Google Patents

Terminal utilisateur Download PDF

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Publication number
WO2020026354A1
WO2020026354A1 PCT/JP2018/028731 JP2018028731W WO2020026354A1 WO 2020026354 A1 WO2020026354 A1 WO 2020026354A1 JP 2018028731 W JP2018028731 W JP 2018028731W WO 2020026354 A1 WO2020026354 A1 WO 2020026354A1
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WO
WIPO (PCT)
Prior art keywords
transmission
information
unit
carrier
user terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
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PCT/JP2018/028731
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English (en)
Japanese (ja)
Inventor
和晃 武田
貴之 五十川
大樹 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
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NTT Docomo Inc
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Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to PCT/JP2018/028731 priority Critical patent/WO2020026354A1/fr
Publication of WO2020026354A1 publication Critical patent/WO2020026354A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • H04W72/12—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

  • the present invention relates to a user terminal in a next-generation mobile communication system.
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • Non-Patent Document 1 LTE-A (LTE Advanced, Rel. 10 to 14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (LTE @ Rel. 8, 9).
  • LTE Long Term Evolution
  • MTC Machine Type Communication
  • NB-IoT Narrow Band Internet of Things
  • IoT Internet of Things
  • a maximum bandwidth for example, 1.4 MHz that is narrower than a maximum bandwidth (for example, 20 MHz) per LTE cell (also referred to as a serving cell, a component carrier (CC: Component @ Carrier), a carrier, or the like) is used.
  • Uplink UL: Uplink
  • DL Downlink
  • the MTC is also called an LTE-M (LTE-MTC), an extended MTC (eMTC: enhanced @ MTC), a low-cost MTC (LC-MTC: Low-Cost-MTC), or the like.
  • NB-IoT for example, UL or DL communication is performed with a bandwidth (for example, 200 kHz) smaller than the maximum bandwidth of MTC as the maximum bandwidth.
  • the NB-IoT is also called narrow-band LTE (NB-LTE: Narrow Band LTE), narrow-band cellular IoT (NB Cell IoT: Narrow Band Cellular Internet of Thing), clean slate, and the like.
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • DCI Downlink Control Information
  • L1 signaling UL grant (UL grant), dynamic grant (dynamic) grant
  • UL transmission is dynamically scheduled.
  • the periodic UL transmission set by such higher layer signaling includes UL transmission based on a configured grant (configured @ grant), grant-free UL transmission, and semi-persistent UL transmission. Also called.
  • the present invention has been made in view of the above point, and an object of the present invention is to provide a user terminal capable of appropriately controlling a setting grant-based UL transmission in IoT (for example, NB-IoT).
  • IoT for example, NB-IoT
  • the user terminal includes, in a single resource block, information indicating one or more subcarriers allocated to an uplink shared channel in resource unit units determined based on subcarrier intervals. It is characterized by comprising: a receiving unit that receives setting information by higher layer signaling; and a control unit that controls transmission of the uplink shared channel at a predetermined cycle based on the setting information.
  • UL transmission based on a set grant in IoT (for example, NB-IoT) can be appropriately controlled.
  • FIG. 1 is a diagram illustrating an example of the bandwidth of MTC and NB-IoT.
  • FIG. 2 is a diagram showing an example of association between subcarrier intervals and resource units according to the present embodiment.
  • FIG. 3 is a diagram showing an example of frequency resources allocated to UL transmission based on a configuration grant according to the present embodiment.
  • FIGS. 4A and 4B are diagrams illustrating an example of a carrier used for UL transmission based on the set grant according to the present embodiment.
  • FIG. 5 is a diagram illustrating an example of time domain control of UL transmission based on a set grant according to the present embodiment.
  • 6A and 6B are diagrams illustrating an example of a resource for canceling the set grant-based UL transmission according to the present embodiment.
  • FIG. 1 is a diagram illustrating an example of the bandwidth of MTC and NB-IoT.
  • FIG. 2 is a diagram showing an example of association between subcarrier intervals and resource units according to the present embodiment.
  • FIG. 7 is a schematic configuration diagram of the wireless communication system according to the present embodiment.
  • FIG. 8 is a diagram showing an example of the overall configuration of the base station according to the present embodiment.
  • FIG. 9 is a diagram showing an example of a functional configuration of the base station according to the present embodiment.
  • FIG. 10 is a diagram showing an example of the overall configuration of the user terminal according to the present embodiment.
  • FIG. 11 is a diagram illustrating an example of a functional configuration of the user terminal according to the present embodiment.
  • FIG. 12 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the present embodiment.
  • Rel. Communication is performed with a band narrower than the maximum system band (for example, 20 MHz) of LTE before 12 as the maximum bandwidth.
  • the maximum bandwidth per component carrier (CC: Component @ Carrier) (also referred to as a cell, a serving cell, a carrier, a system band, etc.) of LTE before 12 is 20 MHz, whereas the maximum bandwidth of the MTC is, for example,
  • the frequency may be 1.4 MHz, 5 MHz, or the like.
  • the # 1.4 MHz may be configured with 6 resource blocks (physical resource blocks (PRB: Physical @ Resource @ Block)).
  • PRB Physical @ Resource @ Block
  • the band for MTC is also called a narrow band (NB: narrowband), and may be identified by a predetermined index (for example, a narrowband index).
  • MTC is also called enhanced MTC (eMTC: enhanced @ MTC), LTE-MTC (LTE-M), LTE-M1, low-cost MTC (LC-MTC: Low @ Cost-MTC), and the like.
  • the device that performs MTC is at least one of an MTC terminal, UE (User @ Equipment), user terminal (user @ terminal), terminal, device (apparatus), MTC @ UE, BL (Bandwidth @ reduced @ Low @ complexity), and CE (Coverage @ Enhancement).
  • UE BL / CE @ UE
  • BL @ UE BL @ UE
  • UE with extended coverage etc.
  • the MTC terminal candidates (searches) for downlink control channels for example, also referred to as MPDCCH (Machine Type Communication Physical Downlink Control Channel), EPDCCH (Enhanced Physical Downlink Control Channel), simply PDCCH (Physical Downlink Control Channel), etc.).
  • Space is monitored (blind decoding) to detect downlink control information (DCI: Downlink Control Information).
  • DCI Downlink Control Information
  • Each candidate of the MPDCCH is configured by a number of resource units (also referred to as a control channel element (CCE: Control @ Channel @ Element), an extended CCE (ECCE: Enhanced @ CCE), etc.) according to the aggregation level.
  • CCE Control @ Channel @ Element
  • ECCE Extended @ CCE
  • DCI for MTC includes, for example, DCI (UL grant, for example, DCI format 6-0A or 6-0B) used for scheduling of an uplink shared channel (for example, PUSCH: Physical Uplink Shared Channel), and downlink shared channel (for example, The PDSCH may include a DCI (DL assignment, for example, DCI format 6-1A or 6-1B) used for scheduling of Physical Downlink Shared Channel, and a DCI (for example, DCI format 6-2) used for paging or the like.
  • DCI UL grant, for example, DCI format 6-0A or 6-0B
  • the PDSCH may include a DCI (DL assignment, for example, DCI format 6-1A or 6-1B) used for scheduling of Physical Downlink Shared Channel, and a DCI (for example, DCI format 6-2) used for paging or the like.
  • the MTC terminal may control the reception of the PDSCH that is allocated in a predetermined unit (for example, a PRB unit) within a narrow band based on DCI (for example, DCI format 6-1A or 6-1B). Similarly, the MTC terminal controls transmission of a PUSCH allocated in a predetermined unit (for example, a PRB unit or a subcarrier unit) within a narrow band based on DCI (for example, DCI format 6-0A or 6-0B). You may.
  • the MTC terminal receives a synchronization signal (SS: Synchronization Signal) transmitted at 1.4 MHz (6 PRB) from the center frequency of the cell and a broadcast channel (PBCH: Physical Broadcast Channel), and master information transmitted on the PBCH.
  • SS Synchronization Signal
  • PBCH Physical Broadcast Channel
  • a system information block SIB: System @ Information @ Block
  • SIB System @ Information @ Block
  • MIB Master @ Information @ Block
  • SS may include PSS (Primary @ Synchronization @ Signal) and SSS (Secondary @ Synchronization @ Signal).
  • NB-IoT a peak speed lower than MTC is assumed.
  • the peak speed of downlink and uplink of NB-IoT is assumed to be 200 kbps for DL and 144 kbps for UL.
  • communication is performed with a maximum bandwidth of 200 kHz. 200 kHz may be constituted by 1 PRB when the subcarrier interval is 15 kHz.
  • a device that performs NB-IoT is also called an NB-IoT terminal, UE, user terminal, terminal, device, NB-IoT @ UE, or the like.
  • the NB-IoT terminal monitors (blind) a candidate for a downlink control channel for NB-IoT (for example, narrowband PDCCH (NPDCCH: Narrowband Physical Downlink Control Channel) or simply PDCCH or the like). Decoding) to detect DCI.
  • NPDCCH narrowband Physical Downlink Control Channel
  • Each candidate of the NPDCCH is configured by a number of resource units (also referred to as CCE, narrowband CCE (NCCE: Narrowband @ CCE), etc.) according to the aggregation level.
  • the DCI for the NB-IoT is, for example, a DCI (UL grant) used for scheduling an uplink shared channel for the NB-IoT (for example, a narrowband PUSCH (NPUSCH: Narrowband Physical Uplink Shared Channel), simply referred to as PUSCH, etc.).
  • DCI format N0 DCI (DL assignment, for example, a downlink shared channel for NB-IoT (for example, narrowband PDSCH (NPDSCH: Narrowband Physical Downlink Shared Channel), simply referred to as PDSCH, etc.)) , DCI format N1), and DCI used for paging (eg, DCI format N2).
  • the NB-IoT terminal may control the reception of the NPDSCH allocated in a predetermined unit (for example, one or more subcarrier units) within a narrow band based on DCI (for example, DCI format N1). Similarly, the NB-IoT terminal may control transmission of an NPUSCH allocated in a predetermined unit (for example, one or more subcarrier units) within a narrow band based on DCI (for example, DCI format N0).
  • the subcarrier may be called a tone or the like. Transmission of NPDSCH or NPUSCH using a single subcarrier may be referred to as single tone transmission. Transmission of NPDSCH or NPUSCH using a plurality of subcarriers may be referred to as multitone transmission.
  • a synchronization signal (NSS: Narrowband Synchronization Signal) and a broadcast channel (NPBCH: Narrowband Physical Broadcast Channel) for the NB-IoT terminal may be transmitted at 1 PRB (200 kHz or 180 kHz).
  • NSS and NPBCH may be transmitted in a period of 10 subframes, and NSSS may be transmitted in a period of 20 subframes.
  • the NSS may include a primary synchronization signal (NPSS: Narrowband Primary Synchronization Signal) and a secondary synchronization signal (NSSS: Narrowband Secondary Synchronization Signal) for the NB-IoT terminal.
  • the NB-IoT terminal may receive the NSS and the NPBCH, receive the SIB at 1 PRB (200 kHz or 180 kHz) based on the MIB transmitted on the NPBCH, and start a random access procedure based on the SIB.
  • the NB-IoT terminal uses a subcarrier with a predetermined subcarrier interval (for example, 3.75 kHz) to use a PRACH (NPRACH: Narrowband Physical Physical Random Access Channel, NPRACH preamble, etc.) for the NB-IoT terminal. May be transmitted.
  • the MIB for the NB-IoT terminal may be called MIB-NB (Narrowband) or the like.
  • An SIB for an NB-IoT terminal may be called an SIB-NB (Narrowband) or the like.
  • FIG. 1 is a diagram showing an example of the bandwidth of MTC and NB-IoT.
  • a band (system band) per CC is configured at a maximum of 20 MHz.
  • a band (narrow band) for MTC is configured with, for example, a maximum of 1.4 MHz (for example, 6 PRB).
  • the NB-IoT band is configured with a maximum of 200 kHz (for example, 1 PRB).
  • an MTC terminal for example, a UE of category M, M1, or M2
  • the MTC terminal cannot recognize the PDCCH arranged over the entire LTE system band. Therefore, the MTC terminal detects the DCI by monitoring the MPDCCH candidates arranged in the MTC band.
  • the MTC terminal sets the remaining of the predetermined field in a narrow band specified by the most significant bit (MSB: Most Significant Bit) of a predetermined field (for example, a resource block assignment (Resource @ block @ assignment) field) in the DCI.
  • the PUSCH may be transmitted using one or more PRBs (or one or more subcarriers) specified by bits.
  • an NB-IoT terminal detects a DCI by monitoring NPDCCH candidates arranged in an NB-IoT band.
  • the NB-IoT terminal may transmit the NPUSCH using one or more subcarriers specified by a predetermined field (for example, a subcarrier indication field) in the DCI.
  • FIG. 1 shows an example in which the MTC and NB-IoT bands are provided in the LTE system band.
  • the present invention is not limited to this, and any frequency band (for example, a band other than LTE) is provided. You may be.
  • MTC and NB-IoT may be provided in an NR-based system.
  • the PDCCH is arranged in a predetermined number of symbols at the head of a subframe over the entire system band, but is not limited to this.
  • the PDCCH may be arranged in a resource area (for example, a control resource set (CORESET: Control @ Resource @ Set)) including at least a part of a band and a predetermined number of symbols in one CC.
  • CORESET Control @ Resource @ Set
  • a subframe is shown as a scheduling unit in the time direction, but the present invention is not limited to this, and a time unit (for example, a slot, a resource unit, or the like) depending on a subcarrier interval may be used.
  • a time unit for example, a slot, a resource unit, or the like
  • the periodic UL transmission set by such higher layer signaling includes UL transmission based on a configured grant (configured @ grant), grant-free UL transmission, and semi-persistent UL transmission. Also called.
  • technologies related to IoT introduced in LTE are premised on UL transmission dynamically scheduled using DCI (dynamic grant-based UL transmission).
  • the NB-IoT terminal determines which subcarrier is allocated to the PUSCH based on a predetermined field (for example, a subcarrier indication field) in DCI detected by monitoring the NPDCCH. Is assumed.
  • the NB-IoT terminal may not be able to appropriately control the UL transmission without the above-mentioned DCI-based scheduling (also referred to as dynamic grant or dynamic scheduling). Therefore, the present inventors have conceived that the NB-IoT terminal can appropriately control the UL transmission without scheduling by DCI by setting necessary setting information by higher layer signaling.
  • UL transmission based on a set grant is performed in NB-IoT of an LTE-based system (for example, a system defined by TS36.xxx in the 3GPP specification)
  • LTE-based system for example, a system defined by TS36.xxx in the 3GPP specification
  • UL transmission based on a setting grant may be performed in NB-IoT of an NR-based system (for example, a system defined by TS38.xxx in the 3GPP specifications).
  • “setting by upper layer signaling” is also referred to as a base station (BS (Base @ Station)), a transmission / reception point (TRP: Transmission / Reception @ Point), an eNB (eNodeB), a gNB (NR @ NodeB), or the like.
  • BS Base @ Station
  • TRP Transmission / Reception @ Point
  • eNB eNodeB
  • gNB NR @ NodeB
  • UE User @ Equipment
  • MS Mobile @ station
  • the upper layer signaling may be, for example, at least one of the following: RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling (eg, MAC CE (Control Element), MAC PDU (Protocol Data Unit)), Information transmitted by a broadcast channel (for example, PBCH: Physical Broadcast Channel) (for example, a master information block (MIB)); -System information (for example, system information block (SIB: System Information Block), minimum system information (RMSI: Remaining Minimum System Information), other system information (OSI: Other System Information)).
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • MAC CE Control Element
  • MAC PDU Protocol Data Unit
  • Information transmitted by a broadcast channel for example, PBCH: Physical Broadcast Channel
  • MIB master information block
  • SIB System Information Block
  • RMSI Remaining Minimum System Information
  • OSI Other System Information
  • UL transmission based on configuration grant assumes, for example, transmission of an NPUSCH based on configuration information received by higher layer signaling without scheduling by DCI, but is not limited to this. This embodiment can be applied to any UL signal transmitted based on setting information by higher layer signaling without scheduling by DCI.
  • the NB-IoT terminal receives configuration information for configuration grant-based UL transmission by higher layer signaling.
  • the configuration information may include at least one of the following information: (1) Information (SCS information) on subcarrier interval (SCS) for UL transmission based on set grant, (2) Information (resource unit information) on a resource unit for UL transmission based on a setting grant, (3) information (resource allocation information) on resource allocation for UL transmission based on a setting grant; (4) Information on a carrier for UL transmission based on a setting grant (carrier information); (5) Information (repetition information) related to repetition of UL transmission based on the set grant, (6) Information (modulation and coding scheme (MCS: Modulation and Coding Scheme) information) on at least one of modulation and coding of UL transmission based on a setting grant (7) Information on the time domain of UL transmission based on the set grant (time domain information), (8) Information on the type of UL transmission based on the set grant (type information).
  • SCS information Information on subcarrier interval (SCS) for UL transmission based on set grant
  • Information resource unit information
  • resource allocation information
  • the SCS information may indicate, for example, a subcarrier interval (for example, 3.75 kHz or 15 kHz) for UL transmission based on a set grant.
  • a subcarrier interval for example, 3.75 kHz or 15 kHz
  • the symbol length may be longer as the subcarrier interval is smaller.
  • the subcarrier interval is 15 kHz, 12 subcarriers may be included in the maximum bandwidth 1 PRB (200 kHz or 180 kHz) of NB-IoT.
  • the subcarrier interval is 3.75 kHz, 48 subcarriers may be included in the maximum bandwidth 1 PRB (200 kHz or 180 kHz) of NB-IoT.
  • the NB-IoT terminal may determine a subcarrier interval used for UL transmission based on the set grant based on the above-mentioned SCS information.
  • the resource unit information may indicate, for example, a resource unit for UL transmission based on a setting grant.
  • the resource unit information the number of subcarriers constituting one resource unit (N RU sc), the number of slots (N RU slots), may indicate at least one of the number of symbols per slot (N UL symb).
  • the resource unit may be used as a unit for scheduling the UL transmission.
  • FIG. 2 is a diagram showing an example of association between subcarrier intervals and resource units according to the present embodiment.
  • a resource unit may be associated with a subcarrier interval ( ⁇ f).
  • ⁇ f subcarrier interval
  • one resource unit may be configured with one subcarrier and 16 slots.
  • one resource unit may be configured with one subcarrier and 16 slots, three subcarriers and eight slots, six subcarriers and four slots, or twelve subcarriers and two slots.
  • One slot may include seven symbols.
  • the NB-IoT terminal determines, based on the resource unit information, a resource unit (or at least one of the number of subcarriers, the number of slots in the resource unit, and the number of symbols per slot) used for UL transmission based on the set grant. ) May be determined.
  • the resource allocation information may include, for example, at least one of the following information: Information (frequency resource information) indicating frequency resources to be allocated in a predetermined unit (for example, a resource unit (subcarrier) unit or a PRB unit) for UL transmission based on the setting grant; The number of resource units (RUs) allocated to the UL transmission based on the set grant (RU number information); Information indicating the band (1PRB) for NB-IoT (PRB information).
  • Information (frequency resource information) indicating frequency resources to be allocated in a predetermined unit (for example, a resource unit (subcarrier) unit or a PRB unit) for UL transmission based on the setting grant; The number of resource units (RUs) allocated to the UL transmission based on the set grant (RU number information); Information indicating the band (1PRB) for NB-IoT (PRB information).
  • the frequency resource information may indicate, for example, an index of a subcarrier allocated to UL transmission based on a set grant, or may indicate a set of indexes of the subcarrier.
  • FIG. 3 is a diagram showing an example of frequency resources allocated to UL transmission based on a configuration grant according to the present embodiment. Note that the relationship between the predetermined upper layer parameters (for example, subcarrier indication, I SC ) illustrated in FIG. 3 and the allocation of frequency resources (for example, one or more subcarriers) is merely an example, and is not illustrated. It is not limited to what you do.
  • I SC subcarrier indication
  • each of the values “0” to “11” of the predetermined upper layer parameter (I SC ) may be an index of one subcarrier allocated to the UL transmission. Further, the values of the predetermined upper layer parameter “12” to “15” may indicate indices of three consecutive subcarriers allocated to the UL transmission.
  • the values of the predetermined upper layer parameters “12” to “15” may indicate indices of six consecutive subcarriers allocated to the UL transmission.
  • the value “18” of the predetermined upper layer parameter may indicate an index of a continuous subcarrier allocated to the UL transmission.
  • the predetermined upper layer parameter (I SC ) may be at least one of the subcarrier index itself assigned to the NPUSCH and information indicating the set of the subcarriers.
  • the NB-IoT terminal may determine one or more subcarriers to be allocated to the set grant-based UL transmission based on the frequency resource information described above.
  • the above-mentioned RU number information may indicate, for example, the number of RUs allocated to UL transmission based on the set grant.
  • the NB-IoT terminal may determine the size of a transport block used for UL transmission based on the set grant based on the RU number information described above. Further, the NB-IoT terminal may determine the number of slots for performing the UL transmission based on the RU number information described above.
  • the PRB information described above may indicate a band (1 PRB) for NB-IoT.
  • the carrier information may indicate a carrier used for UL transmission based on a set grant.
  • the NB-IoT terminal may support at least one of an anchor carrier and a non-anchor carrier.
  • the anchor carrier (first carrier) is a carrier that is assumed to transmit at least one of NSS, NPBCH, and SIB-NB.
  • the NB-IoT terminal may determine a carrier for detecting NSS as an anchor carrier.
  • a non-anchor carrier is a carrier that is not assumed to transmit at least one of NSS, NPBCH, and SIB-NB, and is also called an additional carrier (additional carrier) or the like.
  • the NB-IoT terminal may determine a non-anchor carrier based on the SIB-NB. Further, one or more non-anchor carriers may be set in the NB-IoT terminal.
  • the NB-IoT terminal may perform a random access procedure on an anchor carrier or a non-anchor carrier specified by the SIB-NB.
  • the above-mentioned carrier information may indicate whether an anchor carrier or a non-anchor carrier is used for UL transmission based on the set grant, or may indicate the carrier itself used for UL transmission based on the set grant.
  • FIGS. 4A and 4B are diagrams illustrating an example of a carrier used for UL transmission based on a set grant according to the present embodiment.
  • FIG. 4A shows an example of an anchor carrier and a non-anchor carrier according to the present embodiment.
  • 4A and 4B are merely examples, and the periods of NPSS, NSSS, and NPBCH and the number of carriers are not limited to those illustrated.
  • one or more non-anchor carriers may be set in the NB-IoT terminal.
  • NPSS, NSSS, and NPBCH may be transmitted on the anchor carrier.
  • the non-anchor carrier for example, NPSS, NSSS, and NPBCH may not be transmitted.
  • the carrier allocated to the set grant-based UL transmission may be any carrier shown in FIG. 4A or may be limited to a non-anchor carrier. At least one of NPSS, NSSS, and NPBCH is allocated to the anchor carrier. Thus, scheduling can be performed more flexibly by restricting carriers allocated to UL transmission based on the set grant to non-anchor carriers.
  • the carrier allocated to the UL transmission based on the set grant may be a dedicated carrier for the UL transmission.
  • the dedicated carrier may be, for example, one of the non-anchor carriers set in the NB-IoT terminal.
  • the user terminal may determine a carrier to be used for UL transmission based on the set grant based on the carrier information, and may control transmission of the NPUSCH on the carrier.
  • Repeat information may include, for example, at least one of the following information: Information indicating the number of repetitions (repetition number) N REP (for example, 1, 2, 4, 8, 16, 32, 64, 128) of the set grant-based UL transmission (repetition number information).
  • the NB-IoT terminal may determine the number of resource units (or number of slots) in which the set grant-based UL transmission (for example, NPUSCH) is repeated based on the number of repetitions N REP indicated by the repetition number information.
  • the MCS information may include, for example, at least one of the following information: Information (for example, MCS index) indicating at least one of the modulation scheme (modulation order) of the set grant-based UL transmission and an index of a transport block size (TBS: Transport Block Size); Information indicating TBS, -Information indicating a coding rate.
  • Information for example, MCS index
  • TBS Transport Block Size
  • the NB-IoT terminal may control demodulation of the NPUSCH allocated as described above based on the modulation scheme indicated by the MCS information. Further, the MTC terminal may control the decoding of the NPUSCH allocated as described above based on at least one of the TBS and the coding rate derived based on the MCS information.
  • Time domain information may include, for example, at least one of the following information: Information (periodicity) indicating a period (periodicity) of UL transmission based on the set grant, Information indicating a time offset with respect to the head of the radio frame for UL transmission based on the set grant (time offset information).
  • FIG. 5 is a diagram illustrating an example of time domain control of UL transmission based on a set grant according to the present embodiment.
  • the NB-IoT terminal receives period information indicating a period of 10 subframes (one radio frame), time offset information indicating 6 subframes, and information on the number of repetitions indicating 4 subframes.
  • period information indicating a period of 10 subframes (one radio frame)
  • time offset information indicating 6 subframes
  • information on the number of repetitions indicating 4 subframes Note that FIG. 5 is merely an example, and the number of repetitions N, the cycle, and the time offset are not limited to those illustrated.
  • the NB-IoT terminal uses the subcarriers allocated as described above in the resource unit determined based on a predetermined time offset from the beginning of the radio frame at a predetermined cycle, and uses the NPUSCH for the NPUSCH. May be sent.
  • Type Information Several types (type 1, type 2, etc.) of the setting grant-based UL transmission are under study.
  • parameters used for configuration grant-based transmission are transmitted using higher layer signaling. It may be set to the NB-IoT terminal.
  • the NB-IoT terminal when the set grant parameter is set by higher layer signaling (for example, when a reconfiguration procedure of RRC is performed), the NB-IoT terminal performs UL transmission based on the set grant parameter for a predetermined period. Keep doing.
  • activation (activation) or deactivation (configuration) of a configuration grant parameter set by higher layer signaling is performed by physical layer signaling (for example, DCI or (A predetermined sequence) or MAC signaling (for example, MAC @ CE).
  • physical layer signaling for example, DCI or (A predetermined sequence)
  • MAC signaling for example, MAC @ CE
  • the DCI used to control the activation or deactivation of the set grant parameter is added with a cyclic redundancy check (CRC: Cyclic Redundancy Check) bit scrambled by a specific radio network temporary identifier (RNTI: Radio Network Temporary Identifier). May be done.
  • CRC Cyclic Redundancy Check
  • RNTI Radio Network Temporary Identifier
  • the specific RNTI may be, for example, a CS-RNTI (Configured @ Scheduling @ RNTI).
  • the predetermined sequence used for control of activation or deactivation of the set grant parameter is, for example, a wake-up signal (WUS: Wake-Up) used for discontinuous reception (DRX) control of an NB-IoT terminal. Signal).
  • WUS Wake-Up
  • DRX discontinuous reception
  • At least a part of the configuration grant parameter may be notified to the NB-IoT terminal by physical layer signaling (eg, DCI).
  • physical layer signaling eg, DCI
  • the NB-IoT terminal may control UL transmission based on the set grant based on the type information described above.
  • the NB-IoT terminal may control (eg, stop) UL transmission using the resource according to a predetermined rule.
  • FIGS. 6A and 6B are diagrams illustrating an example of a resource for canceling the set grant-based UL transmission according to the present embodiment.
  • a time domain resource eg, subframe, slot or resource unit for NPRACH is shown.
  • the NB-IoT terminal controls UL transmission based on the set grant based on the NPRACH resource. You may. For example, in this case, the NB-IoT terminal may give priority to the transmission of the NPRACH and stop UL transmission based on the set grant in the NPRACH resource.
  • FIG. 6B shows a specific subframe set by upper layer parameters.
  • the specific subframe may be, for example, a subframe (prohibit subframe) whose use is restricted by an upper layer parameter (for example, downlinkBitmapNonAnchor).
  • an upper layer parameter for example, downlinkBitmapNonAnchor
  • the prohibited subframe may be indicated by a bitmap having the same number of bits as the number of subframes in one radio frame, or the number of subframes in a plurality of radio frames (for example, 40 subframes in four radio frames). May be indicated by a bitmap having the same number of bits as.
  • the prohibited subframe specified by downlinkBitmapNonAnchor may be a subframe for DL reception of the NB-IoT terminal in a non-anchor carrier.
  • the NB-IoT terminal performs UL transmission based on the set grant based on the prohibited subframe. May be controlled. For example, in this case, the NB-IoT terminal may prioritize the reception of the downlink signal and stop UL transmission based on the set grant in the prohibited subframe.
  • Wireless communication system Wireless communication system
  • the configuration of the wireless communication system according to the present embodiment will be described.
  • the above-described aspects are applied.
  • each aspect may be used independently and may be combined.
  • FIG. 7 is a schematic configuration diagram of the wireless communication system according to the present embodiment.
  • the wireless communication system 1 is an example in which an LTE-based system is adopted in a network domain of a machine communication system, but is not limited thereto.
  • the wireless communication system 1 may adopt an NR-based system of a machine communication system.
  • carrier aggregation (CA) and / or dual connectivity (DC) integrating a plurality of component carriers (CC) can be applied.
  • the LTE system is set to a system band from a minimum of 1.4 MHz to a maximum of 20 MHz for both downlink and uplink, but is not limited to this configuration.
  • the wireless communication system 1 includes SUPER @ 3G, LTE-A (LTE-Advanced), IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), NR (New Radio), and FRA (New Radio). It may be called Future @ Radio @ Access, New-RAT (Radio @ Access @ Technology), IoT, or the like, or a system that realizes these.
  • the wireless communication system 1 includes a base station 10 and a plurality of user terminals 20A, 20B, and 20C wirelessly connected to the base station 10.
  • the base station 10 is connected to the upper station device 30 and is connected to the core network 40 via the upper station device 30.
  • the upper station device 30 includes, for example, an access gateway device, a radio network controller (RNC), a mobility management entity (MME), and the like, but is not limited thereto.
  • RNC radio network controller
  • MME mobility management entity
  • the user terminal 20 can communicate with the base station 10 in the cell 50.
  • the user terminal 20 may be a user terminal (for example, a UE of category 0, 1 or the like) in which the maximum bandwidth usable in one CC is not limited.
  • the user terminal 20 may be a user terminal (for example, a UE of a category M, M1 or M2, or an MTC terminal) in which the maximum bandwidth that can be used in one CC is limited.
  • the user terminal 20 may be a user terminal (UE of category N, N1 or N2, NB-IoT terminal) whose maximum bandwidth is more restricted than the MTC terminal.
  • orthogonal frequency division multiple access Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-DMA
  • Carrier Frequency Division Multiple Access is applied.
  • OFDMA is a multicarrier transmission scheme in which a frequency band is divided into a plurality of narrow frequency bands (subcarriers), and data is mapped to each subcarrier to perform communication.
  • SC-FDMA is a single-carrier transmission scheme that divides the system bandwidth into bands each consisting of one or continuous resource blocks for each terminal, and reduces interference between terminals by using different bands for a plurality of terminals. is there.
  • the uplink and downlink radio access schemes are not limited to these combinations. For example, OFDMA may be used in the uplink.
  • a downlink shared channel (PDSCH: Physical Downlink Shared Channel, NPDSCH: Narrowband PDSCH, PDSCH and NPDSCH is collectively referred to as PDSCH) shared by each user terminal 20 as a downlink channel.
  • a broadcast channel (PBCH: Physical @ Broadcast @ Channel), a downlink L1 / L2 control channel, and the like are used.
  • the PDSCH transmits user data, upper layer control information, and a predetermined SIB (System Information Block).
  • SIB System Information Block
  • MIB Master ⁇ Information ⁇ Block
  • the downlink L1 / L2 control channel includes a downlink control channel (PDCCH: Physical Downlink Control Channel, MPDCCH: MTC PDCCH, NPDCCH: Narrowband PDCCH, PDCCH, MPDCCH, NPDCCH; collectively referred to as PDCCH).
  • Downlink control information including scheduling information (DCI: Downlink Control Information) and the like are transmitted by the PDCCH.
  • an uplink shared channel shared by each user terminal 20 (PUSCH: Physical Uplink Shared Channel, NPUSCH: Narrowband PUSCH, PDSCH and NPUSCH is collectively referred to as PUSCH), uplink An L1 / L2 control channel (PUCCH: Physical Uplink Control Channel), a random access channel (PRACH: Physical Random Access Channel, NPRACH: Narrowband PRACH, and PRACH when collectively referring to PRACH and NPRACH) are used.
  • PUSCH may be called an uplink data channel.
  • PUSCH transmits user data and higher layer control information.
  • downlink radio quality information CQI: Channel ⁇ Quality ⁇ Indicator
  • HARQ-ACK retransmission control information
  • the PRACH transmits a random access preamble for establishing a connection with a cell.
  • the channel for the MTC terminal / NB-IoT terminal may be represented by adding “M” indicating MTC or “NB” indicating NB-IoT, and the PDCCH / MTC terminal / NB-IoT terminal.
  • the EPDCCH, PDSCH, PUCCH, PUSCH may be called M (NB) -PDCCH, M (NB) -PDSCH, M (NB) -PUCCH, M (NB) -PUSCH, etc., respectively.
  • PDCCH, PDSCH, PUCCH, and PUSCH are simply referred to as PDCCH, PDSCH, PUCCH, and PUSCH.
  • a cell-specific reference signal CRS: Cell-specific Reference Signal
  • CSI-RS Channel State Information-Reference Signal
  • DMRS Demodulation Reference Signal
  • PRS Positioning Reference Signal
  • a reference signal for measurement SRS: Sounding Reference Signal
  • DMRS reference signal for demodulation
  • the DMRS may be called a user terminal specific reference signal (UE-specific Reference Signal). Further, the transmitted reference signal is not limited to these.
  • FIG. 8 is a diagram showing an example of the overall configuration of the base station according to the present embodiment.
  • the base station 10 includes at least a plurality of transmitting / receiving antennas 101, an amplifier unit 102, a transmitting / receiving unit 103, a baseband signal processing unit 104, a call processing unit 105, and a transmission line interface 106.
  • the baseband signal processing unit 104 regarding user data, processing of a PDCP (Packet Data Convergence Protocol) layer, division / combination of user data, transmission processing of an RLC layer such as RLC (Radio Link Control) retransmission control, and MAC (Medium Access) Control) Transmission processing such as retransmission control (for example, HARQ (Hybrid Automatic Repeat Repeat request) transmission processing), scheduling, transmission format selection, channel coding, inverse fast Fourier transform (IFFT) processing, and precoding processing Is performed and transferred to each transmitting / receiving unit 103.
  • the downlink control signal is also subjected to transmission processing such as channel coding and inverse fast Fourier transform, and is transferred to each transmitting / receiving section 103.
  • Each transmission / reception section 103 converts the baseband signal pre-coded and output from the baseband signal processing section 104 for each antenna into a radio frequency band, and transmits the radio frequency band.
  • the transmission / reception unit 103 can be configured by a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on common recognition in the technical field according to the present invention. Note that the transmission / reception unit 103 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
  • the radio frequency signal frequency-converted by the transmission / reception unit 103 is amplified by the amplifier unit 102 and transmitted from the transmission / reception antenna 101.
  • the transmission / reception unit 103 can transmit / receive various signals in a bandwidth (for example, 180 kHz or 200 kHz) (also referred to as a narrow band) that is limited by a system bandwidth (for example, 20 MHz).
  • the radio frequency signal received by each transmitting / receiving antenna 101 is amplified by the amplifier unit 102.
  • Each transmitting / receiving section 103 receives the upstream signal amplified by the amplifier section 102.
  • Transmitting / receiving section 103 frequency-converts the received signal into a baseband signal and outputs the baseband signal to baseband signal processing section 104.
  • the baseband signal processing unit 104 performs fast Fourier transform (FFT: Fast Fourier Transform), inverse discrete Fourier transform (IDFT), and error correction on user data included in the input uplink signal. Decoding, reception processing of MAC retransmission control, reception processing of the RLC layer and PDCP layer are performed, and the data is transferred to the upper station apparatus 30 via the transmission path interface 106.
  • the call processing unit 105 performs call processing such as setting and release of a communication channel, state management of the base station 10, and management of radio resources.
  • the transmission path interface 106 transmits and receives signals to and from the higher-level station device 30 via a predetermined interface.
  • the transmission line interface 106 transmits and receives signals (backhaul signaling) to and from another base station 10 via an interface between base stations (for example, an optical fiber compliant with CPRI (Common Public Radio Interface), an X2 interface). Is also good.
  • FIG. 9 is a diagram showing an example of a functional configuration of the base station according to the present embodiment.
  • functional blocks of characteristic portions in the present embodiment are mainly shown, and it may be assumed that base station 10 also has other functional blocks necessary for wireless communication.
  • the baseband signal processing unit 104 includes at least a control unit 301, a transmission signal generation unit 302, a mapping unit 303, a reception signal processing unit 304, and a measurement unit 305.
  • the control unit 301 controls the entire base station 10.
  • the control unit 301 can be configured by a controller, a control circuit, or a control device described based on common recognition in the technical field according to the present invention.
  • the control unit 301 controls, for example, generation of a signal by the transmission signal generation unit 302 and allocation of a signal by the mapping unit 303. Further, the control unit 301 controls a signal reception process by the reception signal processing unit 304 and a signal measurement by the measurement unit 305.
  • the control unit 301 controls resource allocation (scheduling) of system information, PDSCH, and PUSCH. Also, it controls resource allocation for synchronization signals (for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal), NB-SS) and downlink reference signals such as CRS, CSI-RS, and DM-RS.
  • synchronization signals for example, PSS (Primary Synchronization Signal) / SSS (Secondary Synchronization Signal), NB-SS
  • CRS Channel Reference Signal
  • CSI-RS Code Division Multiple Access
  • DM-RS Downlink Reference Signal
  • the control unit 301 controls the transmission signal generation unit 302 and the mapping unit 303 so that various signals are allocated to narrow bands and transmitted to the user terminal 20.
  • the control unit 301 includes, for example, broadcast information (for example, MIB, SIB, MIB-NB, SIB-NB, etc.), a downlink control channel (for example, PDCCH, MPDCCH, NPDCCH, etc.), a downlink shared channel (for example, PDSCH) , NPDSCH, etc.) are transmitted in a narrow band.
  • the narrow band (NB) may be, for example, 6 PRB (1.4 MHz) or 1 PRB (200 kHz or 180 kHz).
  • the control unit 301 controls reception of an uplink shared channel (for example, PUSCH, NPUSCH) in cooperation with at least one of the transmission / reception unit 103, the reception signal processing unit 302, and the measurement unit 305. Further, the control unit 301 controls transmission of a downlink shared channel (for example, PDSCH, NPDSCH) in cooperation with at least one of the transmission signal generation unit 302, the mapping unit 303, and the transmission / reception unit 103. In the downlink shared channel, at least one of downlink data and higher layer control information may be transmitted.
  • an uplink shared channel for example, PUSCH, NPUSCH
  • the control unit 301 controls transmission of a downlink shared channel (for example, PDSCH, NPDSCH) in cooperation with at least one of the transmission signal generation unit 302, the mapping unit 303, and the transmission / reception unit 103.
  • a downlink shared channel for example, PDSCH, NPDSCH
  • at least one of downlink data and higher layer control information may be transmitted.
  • the transmission signal generation unit 302 generates a downlink signal (for example, a downlink control channel, a downlink shared channel, a downlink reference signal, a synchronization signal, a broadcast channel, etc.) based on an instruction from the control unit 301, and sends the downlink signal to the mapping unit 303. Output.
  • the transmission signal generation unit 302 can be configured from a signal generator, a signal generation circuit, or a signal generation device described based on common recognition in the technical field according to the present invention.
  • the transmission signal generation unit 302 generates DCI (also referred to as DL assignment, UL grant, etc.) based on, for example, an instruction from the control unit 301.
  • DCI also referred to as DL assignment, UL grant, etc.
  • the downlink shared channel is subjected to an encoding process and a modulation process according to an encoding rate, a modulation scheme, and the like determined based on channel state information (CSI) from each user terminal 20 and the like.
  • CSI channel state information
  • the mapping unit 303 converts the downlink signal generated by the transmission signal generation unit 302 based on an instruction from the control unit 301 into a predetermined frequency resource (for example, one or more PRBs in a narrow band or one or more PRBs in one PRB). (Subcarrier) and outputs the result to the transmission / reception section 103.
  • the mapping unit 303 can be composed of a mapper, a mapping circuit, or a mapping device described based on common recognition in the technical field according to the present invention.
  • the reception signal processing unit 304 performs reception processing (for example, demapping, demodulation, and decoding) on the reception signal input from the transmission / reception unit 103.
  • the received signal is, for example, an uplink signal transmitted from the user terminal 20 (for example, an uplink control channel, an uplink shared channel, an uplink reference signal, and the like).
  • the reception signal processing unit 304 can be configured from a signal processor, a signal processing circuit, or a signal processing device described based on common recognition in the technical field according to the present invention.
  • the reception signal processing unit 304 outputs the information decoded by the reception processing to the control unit 301. Further, the reception signal processing unit 304 outputs the reception signal and the signal after the reception processing to the measurement unit 305.
  • the measurement unit 305 performs measurement on the received signal.
  • the measurement unit 305 can be configured from a measurement device, a measurement circuit, or a measurement device described based on common recognition in the technical field according to the present invention.
  • the measurement unit 305 may measure the received power of the signal (for example, RSRP (Reference Signal Received Power)), the reception quality (for example, RSRQ (Reference Signal Received Quality)), the channel state, and the like.
  • the measurement result may be output to the control unit 301.
  • the transmitting / receiving section 103 may transmit the setting information on the uplink shared channel by higher layer signaling. Further, the transmission / reception section 103 may transmit information indicating at least one of a resource for a random access channel and a specific subframe by higher layer signaling.
  • control unit 301 may control at least one of generation and transmission of setting information on the uplink shared channel.
  • FIG. 10 is a diagram showing an example of the overall configuration of the user terminal according to the present embodiment. Although a detailed description is omitted here, a normal LTE terminal may operate as an NB-IoT terminal or an MTC terminal. The user terminal may support only half duplex communication (half Duplex), or may support both half duplex communication and full duplex communication (full Duplex).
  • the user terminal 20 includes at least a transmitting / receiving antenna 201, an amplifier unit 202, a transmitting / receiving unit 203, a baseband signal processing unit 204, and an application unit 205. Further, the user terminal 20 may include a plurality of transmission / reception antennas 201, amplifier units 202, transmission / reception units 203, and the like.
  • the radio frequency signal received by the transmitting / receiving antenna 201 is amplified by the amplifier unit 202.
  • the transmission / reception unit 203 receives the downlink signal amplified by the amplifier unit 202.
  • the number of transmission / reception antennas 201 may be one or more.
  • the transmitting / receiving section 203 frequency-converts the received signal into a baseband signal and outputs the baseband signal to the baseband signal processing section 204.
  • the transmission / reception unit 203 can be configured from a transmitter / receiver, a transmission / reception circuit, or a transmission / reception device described based on common recognition in the technical field according to the present invention. Note that the transmission / reception unit 203 may be configured as an integrated transmission / reception unit, or may be configured from a transmission unit and a reception unit.
  • the baseband signal processing unit 204 performs FFT processing, error correction decoding, reception processing for retransmission control, and the like on the input baseband signal.
  • the downlink user data is transferred to the application unit 205.
  • the application unit 205 performs processing related to a layer higher than the physical layer and the MAC layer. In addition, broadcast information among downlink data is also transferred to the application unit 205.
  • uplink user data is input from the application unit 205 to the baseband signal processing unit 204.
  • the baseband signal processing unit 204 performs retransmission control information (HARQ-ACK) transmission processing, channel coding, precoding, discrete Fourier transform (DFT) processing, IFFT processing, and the like. Is forwarded to HARQ-ACK.
  • HARQ-ACK retransmission control information
  • DFT discrete Fourier transform
  • IFFT IFFT processing
  • the transmission / reception unit 203 converts the baseband signal output from the baseband signal processing unit 204 into a radio frequency band and transmits the radio frequency band.
  • the radio frequency signal frequency-converted by the transmission / reception unit 203 is amplified by the amplifier unit 202 and transmitted from the transmission / reception antenna 201.
  • FIG. 11 is a diagram illustrating an example of a functional configuration of the user terminal according to the present embodiment.
  • functional blocks of characteristic portions in the present embodiment are mainly shown, and it is assumed that the user terminal 20 also has other functional blocks necessary for wireless communication.
  • the baseband signal processing unit 204 of the user terminal 20 includes at least a control unit 401, a transmission signal generation unit (generation unit) 402, a mapping unit 403, a reception signal processing unit 404, and a measurement unit 405. I have.
  • the control unit 401 controls the entire user terminal 20.
  • the control unit 401 can be configured by a controller, a control circuit, or a control device that is described based on common recognition in the technical field according to the present invention.
  • the control unit 401 controls, for example, generation of a signal by the transmission signal generation unit 402 and assignment of a signal by the mapping unit 403. Further, the control unit 401 controls a signal reception process by the reception signal processing unit 404 and a signal measurement by the measurement unit 405.
  • the control unit 401 acquires from the reception signal processing unit 404 a downlink signal (for example, a downlink control channel, a downlink shared channel, a downlink reference signal, a synchronization signal, a broadcast channel, etc.) transmitted from the base station 10.
  • the control unit 401 controls generation of uplink control information (UCI) such as retransmission control information (HARQ-ACK, ACK / NACK, ACK) and channel state information (CSI) and uplink data based on the downlink signal.
  • UCI uplink control information
  • HARQ-ACK retransmission control information
  • ACK / NACK ACK
  • CSI channel state information
  • the control unit 401 also controls transmission of an uplink shared channel (for example, PUSCH, NPUSCH) in cooperation with at least one of the transmission / reception unit 203, the transmission signal generation unit 402, and the mapping unit 403.
  • the control unit 401 controls transmission of a downlink shared channel (for example, PDSCH, NPDSCH) in cooperation with at least one of the transmission / reception unit 203, the reception signal processing unit 404, and the measurement unit 405.
  • a downlink shared channel for example, PDSCH, NPDSCH
  • the downlink shared channel at least one of downlink data and higher layer control information may be transmitted.
  • Transmission signal generation section 402 generates an uplink signal (for example, an uplink control channel, an uplink shared channel, an uplink reference signal, etc.) based on an instruction from control section 401, and outputs the generated uplink signal to mapping section 403.
  • the transmission signal generation unit 402 can be configured from a signal generator, a signal generation circuit, or a signal generation device described based on common recognition in the technical field according to the present invention.
  • the transmission signal generation unit 402 generates uplink control information (UCI) and / or uplink data based on, for example, an instruction from the control unit 401. Further, transmission signal generating section 402 generates a PUSCH for transmitting UCI and / or uplink data based on an instruction from control section 401.
  • UCI uplink control information
  • PUSCH PUSCH for transmitting UCI and / or uplink data based on an instruction from control section 401.
  • Mapping section 403 maps the uplink signal generated by transmission signal generation section 402 to a predetermined resource based on an instruction from control section 401, and outputs the result to transmission / reception section 203.
  • the mapping unit 403 can be composed of a mapper, a mapping circuit, or a mapping device described based on common recognition in the technical field according to the present invention.
  • the reception signal processing unit 404 performs reception processing (for example, demapping, demodulation, and decoding) on the reception signal input from the transmission / reception unit 203.
  • the received signal is, for example, a downlink signal (a downlink control signal, a downlink data signal, a downlink reference signal, etc.) transmitted from the base station 10.
  • the reception signal processing unit 404 can be configured from a signal processor, a signal processing circuit, or a signal processing device described based on common recognition in the technical field according to the present invention.
  • the reception signal processing unit 404 outputs the information decoded by the reception processing to the control unit 401.
  • the reception signal processing unit 404 outputs, for example, broadcast information, system information, RRC signaling, DCI, and the like to the control unit 401. Further, the reception signal processing unit 404 outputs the reception signal and the signal after the reception processing to the measurement unit 405.
  • the measuring unit 405 measures the received signal.
  • the measurement unit 405 can be configured from a measurement device, a measurement circuit, or a measurement device described based on common recognition in the technical field according to the present invention.
  • the measurement unit 405 may measure, for example, the received power (for example, RSRP), received quality (for example, RSRQ), channel state, and the like of the received signal.
  • the measurement result may be output to the control unit 401.
  • the transmission / reception section 203 may receive setting information on the uplink shared channel by higher layer signaling. Further, the transmission / reception unit 203 may receive information indicating at least one of a resource for a random access channel and a specific downlink subframe by higher layer signaling.
  • the control unit 401 may control transmission of the uplink shared channel based on setting information on the uplink shared channel.
  • the setting information may include at least one of the above items (1) to (8).
  • the setting information is information (resource allocation information) indicating one or a plurality of subcarriers allocated to an uplink shared channel in a resource unit determined based on a subcarrier interval within a single resource block. May be included.
  • the configuration information may include information (carrier information) indicating a carrier used for transmitting the uplink shared channel.
  • the setting information may include information (SCS information) indicating the subcarrier interval.
  • the setting information may include information (resource unit information) indicating at least one of the number of subcarriers, the number of slots, and the number of symbols per slot constituting the resource unit.
  • the control unit 401 may stop transmission of the uplink shared channel based on the configuration information in at least one of a resource for a random access channel and a specific downlink subframe configured by higher layer signaling.
  • each functional block may be realized using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated from each other). , Wired, wireless, etc.), and may be implemented using these multiple devices.
  • the functional block may be realized by combining one device or the plurality of devices with software.
  • the functions include judgment, determination, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (configuration unit) that causes transmission to function may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the realization method is not particularly limited.
  • a base station, a user terminal, and the like may function as a computer that performs processing of the wireless communication method according to the present disclosure.
  • FIG. 12 is a diagram illustrating an example of a hardware configuration of a base station and a user terminal according to one embodiment.
  • the above-described base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 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, a device, a unit, or the like.
  • the hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of the devices illustrated in the drawing, or may be configured to exclude some of the devices.
  • processor 1001 may be implemented by one or more chips.
  • the functions of the base station 10 and the user terminal 20 are performed, for example, by reading predetermined software (program) on hardware such as the processor 1001 and the memory 1002 so that the processor 1001 performs an arithmetic operation and communicates via the communication device 1004. And controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • predetermined software program
  • the processor 1001 performs an arithmetic operation and communicates via the communication device 1004.
  • the processor 1001 controls the entire computer by operating an operating system, for example.
  • the processor 1001 may be configured by a central processing unit (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like.
  • CPU Central Processing Unit
  • the above-described baseband signal processing unit 104 (204), call processing unit 105, and the like may be realized by the processor 1001.
  • the processor 1001 reads out a program (program code), a software module, data, and the like from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and executes various processes according to these.
  • a program program code
  • a program that causes a computer to execute at least a part of the operation described in the above embodiment is used.
  • the control unit 401 of the user terminal 20 may be implemented by a control program stored in the memory 1002 and operated by the processor 1001, and other functional blocks may be implemented similarly.
  • the memory 1002 is a computer-readable recording medium, for example, at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically EPROM), RAM (Random Access Memory), and other appropriate storage media. It may be constituted by one.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 can store a program (program code), a software module, and the like that can be executed to execute the wireless communication method according to an embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium such as a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (CD-ROM (Compact Disc) ROM, etc.), a digital versatile disc, At least one of a Blu-ray (registered trademark) disk, a removable disk, a hard disk drive, a smart card, a flash memory device (eg, a card, a stick, a key drive), a magnetic stripe, a database, a server, and other suitable storage media. May be configured.
  • the storage 1003 may be called an auxiliary storage device.
  • the communication device 1004 is hardware (transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, 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, and the like, for example, in order to realize at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). May be configured.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the transmission / reception antenna 101 (201), the amplifier unit 102 (202), the transmission / reception unit 103 (203), the transmission path interface 106, and the like may be realized by the communication device 1004.
  • the transmission / reception unit 103 may be mounted physically or logically separated between the transmission unit 103a and the reception unit 103b.
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an external input.
  • the output device 1006 is an output device that performs output to the outside (for example, a display, a speaker, an LED (Light Emitting Diode) lamp, and the like). Note that the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • the devices such as the processor 1001 and the memory 1002 are connected by a bus 1007 for communicating information.
  • the bus 1007 may be configured using a single bus, or may be configured using a different bus for each device.
  • the base station 10 and the user terminal 20 include hardware such as a microprocessor, a digital signal processor (DSP: Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), and an FPGA (Field Programmable Gate Array). It may be configured to include hardware, and some or all of the functional blocks may be realized using the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the channel and the symbol may be a signal (signaling).
  • the signal may be a message.
  • the reference signal may be abbreviated as RS (Reference Signal), and may be referred to as a pilot, a pilot signal, or the like according to an applied standard.
  • a component carrier (CC: Component Carrier) may be called a cell, a frequency carrier, a carrier frequency, or the like.
  • a radio frame may be configured by one or more periods (frames) in the time domain.
  • the one or more respective periods (frames) forming the radio frame may be referred to as a subframe.
  • a subframe may be configured by one or more slots in the time domain.
  • the subframe may be of a fixed length of time (eg, 1 ms) that does not depend on numerology.
  • the new melology may be a communication parameter applied to at least one of transmission and reception of a certain signal or channel.
  • Numerology includes, for example, subcarrier interval (SCS: SubCarrier @ Spacing), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI: Transmission @ Time @ Interval), number of symbols per TTI, radio frame configuration, transmission and reception.
  • SCS SubCarrier @ Spacing
  • TTI Transmission @ Time @ Interval
  • TTI Transmission @ Time @ Interval
  • radio frame configuration transmission and reception.
  • At least one of a specific filtering process performed by the transceiver in the frequency domain and a specific windowing process performed by the transceiver in the time domain may be indicated.
  • the slot may be configured by one or a plurality of symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbol, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbol, etc.) in the time domain. Further, the slot may be a time unit based on numerology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots.
  • Each minislot may be constituted by one or more symbols in the time domain.
  • the mini-slot may be called a sub-slot.
  • a minislot may be made up of a smaller number of symbols than slots.
  • a PDSCH (or PUSCH) transmitted in time units larger than minislots may be referred to as PDSCH (PUSCH) mapping type A.
  • a PDSCH (or PUSCH) transmitted using a minislot may be referred to as a PDSCH (PUSCH) mapping type B.
  • Radio frames, subframes, slots, minislots, and symbols all represent time units when transmitting signals.
  • the radio frame, the subframe, the slot, the minislot, and the symbol may have different names corresponding to each. Note that time units such as frames, subframes, slots, minislots, and symbols in the present disclosure may be interchanged with each other.
  • one subframe may be called a transmission time interval (TTI: Transmission @ Time @ Interval)
  • TTI Transmission @ Time @ Interval
  • TTI Transmission Time interval
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot is called a TTI.
  • You may. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1 to 13 symbols), or a period longer than 1 ms. It may be.
  • the unit representing the TTI may be called a slot, a minislot, or the like instead of a subframe.
  • the TTI refers to, for example, a minimum time unit of scheduling in wireless communication.
  • the base station performs scheduling for allocating radio resources (frequency bandwidth, transmission power, and the like that can be used in each user terminal) to each user terminal in TTI units.
  • radio resources frequency bandwidth, transmission power, and the like that can be used in each user terminal
  • the TTI may be a transmission time unit such as a channel-encoded data packet (transport block), a code block, or a code word, or may be a processing unit such as scheduling and link adaptation. Note that when a TTI is given, a time section (for example, the number of symbols) in which a transport block, a code block, a codeword, and the like are actually mapped may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (mini-slot number) constituting the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be referred to as a normal TTI (TTI in LTE@Rel.8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, and the like.
  • a TTI shorter than the normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • a long TTI (for example, a normal TTI, a subframe, etc.) may be read as a TTI having a time length exceeding 1 ms, and a short TTI (for example, a shortened TTI, etc.) may be replaced with a TTI shorter than the long TTI and 1 ms.
  • the TTI having the above-described TTI length may be replaced with the TTI.
  • a resource block is a resource allocation unit in the time domain and the frequency domain, and may include one or a plurality of continuous subcarriers (subcarriers) in the frequency domain.
  • the number of subcarriers included in the RB may be the same irrespective of the numerology, and may be, for example, 12.
  • the number of subcarriers included in the RB may be determined based on numerology.
  • the RB may include one or more symbols in the time domain, and may have a length of one slot, one minislot, one subframe, or one TTI.
  • One TTI, one subframe, and the like may each be configured by one or a plurality of resource blocks.
  • one or more RBs include a physical resource block (PRB: Physical @ RB), a subcarrier group (SCG: Sub-Carrier @ Group), a resource element group (REG: Resource @ Element @ Group), a PRB pair, an RB pair, and the like. May be called.
  • PRB Physical @ RB
  • SCG Sub-Carrier @ Group
  • REG Resource @ Element @ Group
  • PRB pair an RB pair, and the like. May be called.
  • a resource block may be composed of one or more resource elements (RE: Resource @ Element).
  • RE Resource @ Element
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • a bandwidth part (which may be referred to as a partial bandwidth or the like) may also represent a subset of consecutive common RBs (common @ resource @ blocks) for a certain numerology in a certain carrier. Good.
  • the common RB may be specified by an index of the RB based on the common reference point of the carrier.
  • a PRB may be defined by a BWP and numbered within the BWP.
  • $ BWP may include a BWP for UL (UL @ BWP) and a BWP for DL (DL @ BWP).
  • BWP for a UE, one or more BWPs may be configured in one carrier.
  • At least one of the configured BWPs may be active, and the UE does not have to assume to transmit and receive a given signal / channel outside the active BWP.
  • “cell”, “carrier”, and the like in the present disclosure may be replaced with “BWP”.
  • the structures of the above-described radio frame, subframe, slot, minislot, symbol, and the like are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, included in an RB The configuration of the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP: Cyclic @ Prefix) length, and the like can be variously changed.
  • the information, parameters, and the like described in the present disclosure may be expressed using an absolute value, may be expressed using a relative value from a predetermined value, or may be expressed using another corresponding information. May be represented.
  • a radio resource may be indicated by a predetermined index.
  • Names used for parameters and the like in the present disclosure are not limited in any respect. Further, the formulas and the like using these parameters may be different from those explicitly disclosed in the present disclosure.
  • the various channels (PUCCH (Physical Uplink Control Channel), PDCCH (Physical Downlink Control Channel), etc.) and information elements can be identified by any suitable name, so the various names assigned to these various channels and information elements Is not a limiting name in any way.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that can be referred to throughout the above description are not limited to voltages, currents, electromagnetic waves, magnetic or magnetic particles, optical or photons, or any of these. May be represented by a combination of
  • information, signals, and the like can be output from the upper layer to at least one of the lower layer and the lower layer to the upper layer.
  • Information, signals, etc. may be input / output via a plurality of network nodes.
  • Information and signals input and output may be stored in a specific place (for example, a memory) or may be managed using a management table. Information and signals that are input and output can be overwritten, updated, or added. The output information, signal, and the like may be deleted. The input information, signal, and the like may be transmitted to another device.
  • ⁇ Notification of information is not limited to the aspect / embodiment described in the present disclosure, and may be performed using another method.
  • the information is notified by physical layer signaling (for example, downlink control information (DCI: Downlink Control Information), uplink control information (UCI: Uplink Control Information)), higher layer signaling (for example, RRC (Radio Resource Control) signaling, It may be implemented by broadcast information (master information block (MIB: Master Information Block), system information block (SIB: System Information Block), etc.), MAC (Medium Access Control) signaling), other signals, or a combination thereof.
  • DCI Downlink Control Information
  • UCI Uplink Control Information
  • RRC Radio Resource Control
  • MIB Master Information Block
  • SIB System Information Block
  • MAC Medium Access Control
  • the physical layer signaling may be called L1 / L2 (Layer 1 / Layer 2) control information (L1 / L2 control signal), L1 control information (L1 control signal), or the like.
  • the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC connection setup (RRCConnectionSetup) message, an RRC connection reconfiguration (RRCConnectionReconfiguration) message, or the like.
  • the MAC signaling may be notified using, for example, a MAC control element (MAC @ CE (Control @ Element)).
  • the notification of the predetermined information is not limited to an explicit notification, and is implicit (for example, by not performing the notification of the predetermined information or by another information). May be performed).
  • the determination may be made by a value represented by 1 bit (0 or 1), or may be made by a boolean value represented by true or false. , May be performed by comparing numerical values (for example, comparison with a predetermined value).
  • software, instructions, information, and the like may be transmitted and received via a transmission medium.
  • a transmission medium For example, if 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.), the website, When transmitted from a server or other remote source, at least one of these wired and / or wireless technologies is included within the definition of a transmission medium.
  • system and “network” as used in this disclosure may be used interchangeably.
  • precoding In the present disclosure, “precoding”, “precoder”, “weight (precoding weight)”, “pseudo collocation (QCL: Quasi-Co-Location)”, “TCI state (Transmission Configuration Indication state)”, “spatial relation” (Spatial relation), “spatial domain filter”, “transmission power”, “phase rotation”, “antenna port”, “antenna port group”, “layer”, “number of layers”, “ Terms such as “rank,” “beam,” “beam width,” “beam angle,” “antenna,” “antenna element,” “panel,” etc., may be used interchangeably.
  • base station (BS: Base @ Station)”, “wireless base station”, “fixed station (fixed @ station)”, “NodeB”, “eNodeB (eNB)”, “gNodeB (gNB)”, “gNodeB (gNB)” "Access point (access @ point)”, “transmission point (TP: Transmission @ Point)”, “reception point (RP: Reception @ Point)”, “transmission / reception point (TRP: Transmission / Reception @ Point)”, “panel”, “cell” , “Sector”, “cell group”, “carrier”, “component carrier” and the like may be used interchangeably.
  • a base station may also be referred to as a macro cell, a small cell, a femto cell, a pico cell, or the like.
  • a base station can accommodate one or more (eg, three) cells. If the base station accommodates multiple cells, the entire coverage area of the base station can be partitioned into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (RRH: Communication service can also be provided by Remote Radio ⁇ Head)).
  • a base station subsystem eg, a small indoor base station (RRH: Communication service can also be provided by Remote Radio ⁇ Head).
  • RRH Small indoor base station
  • the term “cell” or “sector” refers to part or all of the coverage area of at least one of a base station and a base station subsystem that provide communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • a mobile station is 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 terminal, remote terminal. , Handset, user agent, mobile client, client or some other suitable terminology.
  • At least one of the base station and the 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 the mobile unit, the mobile unit itself, or the like.
  • the moving object may be a vehicle (for example, a car, an airplane, etc.), an unmanned moving object (for example, a drone, a self-driving car, etc.), or a robot (maned or unmanned). ).
  • at least one of the base station and the mobile station includes a device that does not necessarily move during a communication operation.
  • at least one of the base station and the 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 replaced with a user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (for example, may be called D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.).
  • each aspect / embodiment of the present disclosure may be applied.
  • the configuration may be such that the user terminal 20 has the function of the base station 10 described above.
  • words such as “up” and “down” may be read as words corresponding to communication between terminals (for example, “side”).
  • an uplink channel, a downlink channel, and the like may be replaced with a side channel.
  • a user terminal in the present disclosure may be replaced by a base station.
  • a configuration in which the base station 10 has the function of the user terminal 20 described above may be adopted.
  • the operation performed by the base station may be performed by an upper node (upper node) in some cases.
  • various operations performed for communication with a terminal include a base station, one or more network nodes other than the base station (eg, Obviously, it can be performed by MME (Mobility Management Entity), S-GW (Serving-Gateway) or the like, but not limited thereto, or a combination thereof.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • Each aspect / embodiment described in the present disclosure may be used alone, may be used in combination, or may be used by switching with execution.
  • the order of the processing procedure, sequence, flowchart, and the like of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction.
  • elements of various steps are presented in an exemplary order, and are not limited to the specific order presented.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • LTE-B Long Term Evolution-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile
  • 5G 5th generation mobile communication system
  • FRA FlutureATRadioRAccess
  • New-RAT Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Fluture generation radio access
  • GSM registered trademark
  • CDMA2000 Ultra Mobile Broadband
  • 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)
  • a system using other appropriate wireless communication methods a next-generation system extended based on these, and the like.
  • a plurality of systems may be combined (for example, a combination of LTE or LTE-A and 5G) and applied.
  • any reference to elements using designations such as "first,” “second,” etc., as used in this disclosure, does not generally limit the quantity or order of those elements. These designations may be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, reference to a first and second element does not mean that only two elements can be employed or that the first element must precede the second element in any way.
  • determining means judging, calculating, computing, processing, deriving, investigating, searching (upping, searching, inquiry) ( For example, a search in a table, database, or another data structure), ascertaining, etc., may be regarded as "deciding".
  • determining includes receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), and access ( accessing) (e.g., accessing data in a memory) or the like.
  • judgment (decision) is regarded as “judgment (decision)” of resolving, selecting, selecting, establishing, comparing, etc. Is also good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of any operation.
  • “judgment (decision)” may be read as “assuming”, “expecting”, “considering”, or the like.
  • the “maximum transmission power” described in the present disclosure may mean the maximum value of the transmission power, may mean the nominal maximum transmission power (the nominal UE maximum transmit power), or may refer to the rated maximum transmission power (the rated UE maximum transmit power).
  • connection refers to any direct or indirect connection or coupling between two or more elements. And may include the presence of one or more intermediate elements between two elements “connected” or “coupled” to each other.
  • the coupling or connection between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”.
  • the radio frequency domain, microwave It can be considered to be “connected” or “coupled” together using electromagnetic energy having a wavelength in the region, the light (both visible and invisible) region, and the like.
  • the term “A and B are different” may mean that “A and B are different from each other”.
  • the term may mean that “A and B are different from C”.
  • Terms such as “separate”, “coupled” and the like may be interpreted similarly to "different”.

Landscapes

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

Abstract

Selon un mode de réalisation, la présente invention porte sur un terminal utilisateur caractérisé en ce qu'il comprend : une unité de réception qui utilise une signalisation de couche supérieure pour recevoir des informations de configuration comprenant, dans un seul bloc de ressources, des informations indiquant une ou plusieurs sous-porteuses attribuées à un canal partagé de liaison montante (UL) dans des unités de ressources déterminées sur la base d'un espacement de sous-porteuses ; et une unité de commande qui commande l'émission du canal partagé de liaison montante dans une période prescrite sur la base des informations de configuration. Il est ainsi possible de commander correctement une transmission UL basée sur autorisation configurée dans l'internet des objets (IoT) (par exemple, NB-IoT).
PCT/JP2018/028731 2018-07-31 2018-07-31 Terminal utilisateur Ceased WO2020026354A1 (fr)

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CN115299156A (zh) * 2020-02-17 2022-11-04 株式会社Ntt都科摩 终端、无线通信方法以及基站
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