WO2020261402A1 - Terminal et procédé de communication sans fil - Google Patents

Terminal et procédé de communication sans fil Download PDF

Info

Publication number
WO2020261402A1
WO2020261402A1 PCT/JP2019/025259 JP2019025259W WO2020261402A1 WO 2020261402 A1 WO2020261402 A1 WO 2020261402A1 JP 2019025259 W JP2019025259 W JP 2019025259W WO 2020261402 A1 WO2020261402 A1 WO 2020261402A1
Authority
WO
WIPO (PCT)
Prior art keywords
ptrs
pucch
transmission
resource
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2019/025259
Other languages
English (en)
Japanese (ja)
Inventor
翔平 吉岡
祐輝 松村
浩樹 原田
聡 永田
リフェ ワン
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
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to PCT/JP2019/025259 priority Critical patent/WO2020261402A1/fr
Priority to CN201980097837.3A priority patent/CN114009119B/zh
Publication of WO2020261402A1 publication Critical patent/WO2020261402A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present disclosure relates to terminals and wireless communication methods in next-generation mobile communication systems.
  • LTE Long Term Evolution
  • 3GPP Rel.10-14 LTE-Advanced (3GPP Rel.10-14) has been specified for the purpose of further increasing the capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).
  • a successor system to LTE for example, 5th generation mobile communication system (5G), 5G + (plus), New Radio (NR), 3GPP Rel.15 or later, etc.) is also being considered.
  • 5G 5th generation mobile communication system
  • 5G + plus
  • NR New Radio
  • 3GPP Rel.15 or later, etc. is also being considered.
  • FR frequency range
  • FR4 frequency range higher than a predetermined frequency (for example, 52.6 GHz) is used. It is being considered to use it.
  • FR4 there is a concern that the phase noise will increase.
  • phase noise becomes a problem when using a higher modulation order, so the above-mentioned PTRS has been used when the modulation method is 16Quadrature Amplitude Modulation (QAM), 64QAM, 256QAM, or the like. ..
  • phase noise is large as described above. Therefore, in order to suppress the deterioration of performance, it is required to make some correction for the phase noise of the channel or signal to which the lower modulation order is applied, for example, the uplink control channel.
  • the study on how to perform phase correction for the uplink control channel has not yet progressed. Unless this method is clearly specified, the reception quality of the uplink control channel may deteriorate in a high frequency band such as FR4, and an increase in communication throughput may be suppressed.
  • one of the purposes of the present disclosure is to provide a terminal and a wireless communication method capable of appropriately performing communication even in an environment where a large phase noise is expected.
  • the terminal is the control unit that determines the uplink control channel resource in consideration of the phase tracking reference signal (Phase Tracking Reference Signal (PTRS)) for the uplink control channel. It is characterized by having a transmission unit that transmits uplink control information using an uplink control channel resource.
  • phase tracking reference signal Phase Tracking Reference Signal
  • communication can be appropriately performed even in an environment where a large phase noise is expected.
  • FIG. 1 is a diagram showing an example of FR.
  • FIG. 2 is a diagram showing an outline of the features of the PUCCH format defined by Rel-15 NR.
  • FIG. 3 is a diagram showing an example of a parameter that does not consider the PUCCH PTRS and a parameter that considers the PUCCH PTRS.
  • FIG. 4 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 5 is a diagram showing an example of the configuration of the base station according to the embodiment.
  • FIG. 6 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • FIG. 7 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • FR frequency range
  • FIG. 1 is a diagram showing an example of FR.
  • FR4 is, for example, 52.6 GHz to 114.25 GHz.
  • the frequency range of the existing Rel-15 NR is 410 MHz-7.152 GHz for FR1 and 24.25 GHz-52.6 GHz for FR2.
  • FR4 may be called FRx (x is an arbitrary character string).
  • CP-OFDM and DFT-S-OFDM having a wider subcarrier interval than Rel-15NR are used. It is conceivable to use it.
  • the DL channel (for example, PDCCH, etc.) is designed based on the OFDM waveform, but in the frequency band higher than 52.6 GHz, it is assumed that a channel design based on a single carrier is considered.
  • the base station may transmit a Phase Tracking Reference Signal (PTRS) on the downlink.
  • PTRS Phase Tracking Reference Signal
  • the base station may map and transmit PTRS continuously or discontinuously in the time direction in a predetermined number (for example, one) of subcarriers.
  • the PTRS transmitted by the base station may be called DL PTRS.
  • the UE may also transmit PTRS over the uplink.
  • the UE may map and transmit PTRS continuously or discontinuously in the time direction in a predetermined number (for example, one) of subcarriers.
  • the PTRS transmitted by the UE may be called UL PTRS.
  • PTRS may be read as at least one of DL PTRS and UL PTRS.
  • the base station or UE may determine the phase noise based on the received PTRS and correct the phase error of the received signal (for example, PUSCH, PDSCH).
  • the UE may set PTRS setting information (PTRS-DownlinkConfig for DL, PTRS-UplinkConfig for UL) using upper layer signaling.
  • the PTRS setting information may be included in the setting information (DMRS-DownlinkConfig, DMRS-UplinkConfig) of the PDSCH or PUSCH demodulation reference signal (DMRS: Demodulation Reference Signal).
  • the upper layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.
  • RRC Radio Resource Control
  • MAC Medium Access Control
  • MAC CE MAC Control Element
  • PDU MAC Protocol Data Unit
  • the broadcast information includes, for example, a master information block (Master Information Block (MIB)), a system information block (System Information Block (SIB)), a minimum system information (Remaining Minimum System Information (RMSI)), and other system information ( Other System Information (OSI)) may be used.
  • MIB Master Information Block
  • SIB System Information Block
  • RMSI Minimum System Information
  • OSI Other System Information
  • the PTRS configuration information may include information used to determine the time density of the PTRS (eg, the "timeDensity" field of the RRC parameter).
  • the information may be referred to as time density information.
  • the time density information may indicate, for example, a threshold value related to the time density described later (for example, at least one of ptrs-MCS 1 , ptrs-MCS 2 , ptrs-MCS 3 , and ptrs-MCS 4 ).
  • the PTRS configuration information may include information used to determine the frequency density of the PTRS (eg, the "frequency Density" field of the RRC parameter).
  • the information may be referred to as frequency density information.
  • the frequency density information may indicate, for example, a threshold value related to the frequency density described later (for example, at least one of N RB0 and N RB1 ).
  • the PTRS setting information For the PTRS setting information, different values may be set for DL PTRS and UL PTRS. Further, the PTRS setting information may be set in the UE for each BWP (Bandwidth Part) in the cell, or may be set in common for the BWP (cell-specific).
  • BWP Bandwidth Part
  • the UE may assume that the PTRS does not exist (is not included in the transmitted or received signal) when the PTRS setting information is not set (notified) (for example, before the RRC connection).
  • the UE has at least one of the PTRS patterns (time density and frequency density) based on the detected downlink control information (DCI: Downlink Control Information). ) May be determined.
  • DCI Downlink Control Information
  • the RNTI Radio Network Temporary Identifier
  • CRC Cyclic Redundancy Check
  • the RNTI Radio Network Temporary Identifier
  • C-RNTI Cell-RNTI
  • CS-RNTI Configured Scheduling RNTI
  • MCS scheduled MCS
  • scheduled bandwidth scheduled by the DCI.
  • the PTRS pattern may be determined based on bandwidth).
  • the UE determines the MCS index ( IMCS ) based on the DCI's Modulation and Coding Scheme (MCS) field, and determines the time density L PT-RS of PTRS based on the I MCS and the above-mentioned time density threshold. You may.
  • IMCS MCS index
  • MCS Modulation and Coding Scheme
  • the correspondence between the MCS index and the time density of PTRS is not limited to this.
  • the number of thresholds may be less than or greater than four.
  • the PTRS symbol arrangement interval may be indicated.
  • the UE determines the number of resource blocks to be scheduled based on the frequency-domain resource allocation field of DCI the (N RB), based on a threshold concerning the N RB and above frequency density, the frequency density K PTRS the PTRS You may decide.
  • the correspondence between the scheduled bandwidth and the frequency density of the PTRS is not limited to this.
  • the number of thresholds may be less than or greater than two. It should be noted that the smaller the value of K PT-RS, the higher the density, and for example, the arrangement interval of the subcarriers of PTRS may be indicated.
  • the UE may assume that the L PT-RS is a predetermined value (for example, 1) when the time density information is not set.
  • the UE may assume that the K PT-RS is a predetermined value (for example, 2) when the frequency density information is not set.
  • the predetermined values for L PT-RS and K PT-RS may be predetermined or may be set by higher layer signaling.
  • FIG. 2 is a diagram showing an outline of the features of the PUCCH format defined by Rel-15 NR. An appropriate PF is used according to the number of UCI bits, the channel state, and the like.
  • ⁇ PF1 Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), ⁇ PF2: QPSK, -PF3, 4: QPSK, ⁇ / 2-BPSK ( ⁇ / 2 shift BPSK).
  • BPSK Binary Phase Shift Keying
  • QPSK Quadrature Phase Shift Keying
  • PF2 QPSK
  • -PF3 4: QPSK
  • ⁇ / 2-BPSK ⁇ / 2 shift BPSK
  • the above-mentioned PTRS is used when the modulation method is 16Quadrature Amplitude Modulation (QAM), 64QAM, 256QAM, etc. for PDSCH and PUSCH. Mainly used.
  • QAM 16Quadrature Amplitude Modulation
  • 64QAM 64QAM
  • 256QAM 256QAM
  • phase noise is large as described above. Therefore, in order to suppress the deterioration of performance, it is required to perform some correction for the phase noise of signals having a lower modulation order, that is, signals such as QPSK and ⁇ / 2-BPSK, particularly PUCCH.
  • the present inventors have conceived a signal configuration, a control method, etc. for appropriately performing phase correction for PUCCH.
  • each embodiment can be applied not only to the above FR4 (for example, a predetermined frequency range higher than 52.6 GHz) but also for other FRs (for example, FR1, FR2, FR3, etc.).
  • FRx (x is an arbitrary alphanumeric character) of the present disclosure may be read as an arbitrary FRx.
  • the PF of each embodiment may be at least one of the PFs of Rel-15 NR (for example, PF1-4), or the PF of a newly defined PF (for example, PF of Rel-15 NR) may be extended. , Modified PF). Further, the PUCCH of each embodiment may be read as an arbitrary channel or signal.
  • the first embodiment relates to an additional RS (eg, PTRS) introduced into the PF.
  • the additional RS may be referred to as DMRS, DMRS for phase correction, PTRS for PUCCH, or the like.
  • PTRS for PUCCH.
  • the UE may generate, map and transmit the PUCCH PTRS by the method described below.
  • the UE may derive a sequence of PUCCH PTRS using at least one mechanism of PUSCH PTRS and PDSCH PTRS.
  • the PUCCH PTRS sequence generates at least one of the PUSCH PTRS and the PDSCH PTRS when the transform precoder is valid in the UE (for example, the PUSCH transform precoder is valid).
  • PUSCH / PDSCH may be generated using an formula in which PUSCH is read as PUCCH.
  • the series of PUCCH PTRS may be derived using the same series generation formula as at least one of PUSCH DMRS, PDSCH DMRS, and PUCCH DMRS, or may be assumed to be the same series.
  • the PUCCH PTRS series uses the same series as the PUCCH DMRS instead of the PUSCH DMRS when the transform precoder is not valid in the UE (for example, the PUSCH transform precoder is invalid). May be done.
  • Equation 1 or Equation 2 may be used, for example, to derive a series of PUCCH PTRSs when the PUSCH transform precoder is valid or invalid.
  • N symb slot may be the number of symbols per slot (for example, 14).
  • l (alphabet El) is a slot n s, f PUCCH smallest OFDM symbol number in mu (e.g., PUCCH starting symbol number) may be used.
  • the N ID is an upper layer parameter (for example, nPUCCH-Identity) related to the scramble ID of the DMRS for PUCCH, and an upper layer parameter (for example, nPUSCH-Identity) related to the scramble ID of the DMRS for PUSCH when the transform precoder of PUSCH is enabled.
  • an upper layer parameter related to the scramble ID of the DMRS for PUSCH for example, scramblingID0, scramblingID1
  • the upper layer parameters related to the scramble ID of the DMRS for PDSCH for example, scramblingID0, scramblingID1 when the transform precoder of PUSCH is invalid May be given by one.
  • n SCID may be set by higher layer signaling (eg, higher layer parameter "dmrs-SeqInitialization" for n SCID of DMRS for PUSCH) or by a field of DCI (eg, DMRS initialization field) that schedules PUCCH. It may be specified dynamically.
  • n SCID can take, for example, a value from 0 to a predetermined number (eg, 1).
  • these upper layer parameters may have the same parameter names as PUSCH PTRS, PUSCH DMRS, etc., but PUCCH PTRS parameters may be set separately (for example, scramblingID0, scramblingID1, dmrs-SeqInitialization, etc.). ..
  • the UE may generate a sequence of PTRS for PUCCH based on at least one of the following parameters: And quadrature series (Orthogonal sequence) w i (m ), ⁇ Spreading factor, -PUCCH length (eg, number of symbols), -Amplitude scaling factor ⁇ PUCCH , ⁇ First scrambling ID (scramblingID0), ⁇ Second scrambling ID (scramblingID1), -Slot numbers n s, f ⁇ , in the wireless frame ⁇ Cyclic shift ⁇ , ⁇ Cell ID, -PUCCH mapping type, -DMRS setting for PUSCH of mapping type A (DMRS-UplinkConfig indicated by dmrs-UplinkForPUSCH-MappingTypeA), -DMRS setting for PUSCH of mapping type B (DMRS-UplinkConfig indicated by dmrs-UplinkForPUSCH-MappingTypeB).
  • And quadrature series Orthogonal sequence
  • w i (m )
  • these parameters may be PUCCH PTRS parameters or other signal / channel parameters (for example, PUCCH DMRS parameters, PUSCH DMRS parameters).
  • the reference signal sequence rl (m) may be represented by Equation 3 below.
  • the generator of the pseudo-random series may be initialized by the init of the following formula 4.
  • N ID 0 may be scramblingID 0 included in DMRS-UplinkConfig or scramblingID0 included in PUCCH setting (PUCCH-Config).
  • (k, l) may mean a resource element having a subcarrier index k and a symbol index l (alphabet L) within a resource block.
  • the PUCCH PTRS may be mapped to a specific subcarrier included in all PRBs of the symbol transmitting UCI for the frequency domain.
  • the PUCCH PTRS may be mapped to a specific subcarrier included in some PRBs of symbols transmitting UCI for the frequency domain.
  • N sc RB may be the number of subcarriers per resource block (for example, 12).
  • the index k is the number of resource blocks for the PUCCH transmission when placed with N RB, the index corresponding to a sub-carrier N sc RB N RB subcarriers included in the N RB resource blocks (0 or N It may be sc RB N RB -1 or less).
  • the index k may be an index (0 or more and N sc RB N RB -1 or less) over a plurality of resource blocks as described above.
  • the index k may be an index (0 or more and N sc RB N RB -1 or less) over a plurality of resource blocks as described above.
  • At least one of the RE level offset k ref RE and the RB level offset k ref RB may be applied to the formula for obtaining the subcarrier index k to which the PUCCH PTRS is mapped.
  • the k ref RB may be determined by the upper layer parameters, or by at least one of the RNTI and K PTRS used for scrambling the DCI instructing the PUCCH transmission and the number of RBs of the PUCCH. It may be the same value as in the case of PTRS for PUSCH. Further, the kref RE may be determined by the upper layer parameter, or may be determined by the DMRS port associated with the PUCCH PTRS.
  • Time domain mapping The PUCCH PTRS may be mapped to all symbols transmitting UCI for the time domain.
  • the PUCCH PTRS may be mapped to some symbols that transmit UCI for the time domain.
  • the UE does not have to transmit the PTRS for PUCCH in the area (resource) to which the UCI is mapped (the PTRS for PUCCH may be punctured).
  • the UE may puncture or rate match the UCI (PUCCH) in the area (resource) to which the PTRS is mapped.
  • UCI UCI
  • a shorter sequence length (eg, a sequence with a length less than 12) will be used for PFs that use the base sequence to represent the UCI, such as PF1. May be applied.
  • the PTRS for PUCCH can be appropriately generated, mapped and transmitted, so that the reception quality of PUCCH can be improved.
  • the second embodiment relates to PUCCH resource determination when a PTRS for PUCCH as described in the first embodiment is introduced.
  • the PUCCH resource may be determined without considering the PTRS for PUCCH.
  • the PUCCH resource may be determined in consideration of the PTRS for PUCCH.
  • the UE may exclude resources used for PTRS from NSC, CTRL RB .
  • M may be the average number of REs for PUCCH PTRS in at least one of all symbols including UCI, all PRBs including UCI, all symbols including UCI and all PRBs.
  • M may be predetermined by the specifications, or may be given by a higher layer parameter (for example, a parameter corresponding to an approximate value of the above average RE number).
  • M may have a different value depending on the PF.
  • the UE obtains the N SC, ctrl RB obtained in consideration of the PTRS for PUCCH from the expression for determining the PUCCH resource in Rel-15 NR (for example, N SC, ctrl RB , coding rate r, PUCCH resource amount, etc.).
  • the PUCCH resource amount may be obtained by comparing the bit size that can be transmitted by the resource with the total bit size of the UCI (an expression for determining the PUCCH resource amount).
  • UE is the size cyclic redundancy check O ACK for HARQ-ACK information bit size O CRC and (Cyclic Redundancy Check (CRC)) bits, M RB PUCCH number of PRB (M RB PUCCH, for example, the upper layer parameter
  • O CRC Cyclic Redundancy Check
  • M RB PUCCH M RB PUCCH number of PRB
  • the UE determines the minimum number of PRBs M RB, min PUCCH that are less than or equal to the M RB PUCCH and satisfy the following equations 5 and 6. You may.
  • the UE may transmit UCI (HARQ-ACK) using the PUCCH resource of MRB , min PUCCH .
  • Equation 5 (O ACK + O CRC ) ⁇ M RB, min PUCCH ⁇ N SC, ctrl RB ⁇ N symb-UCI ⁇ Q m ⁇ r (Equation 6) if M RB PUCCH > 1, (O ACK + O CRC )> (M RB, min PUCCH -1) ⁇ N SC, ctrl RB ⁇ N symb-UCI ⁇ Q m ⁇ r
  • Q m may be the modulation order of PUCCH (for example, 2, 4, 6, etc.), and r may be the coding rate.
  • N symb-UCI is a parameter indicating the number of UCI symbols.
  • N symb-UCI (also referred to as N symb-UCI PUCCH ) may be a value based on the upper layer parameter "nrof Symbols".
  • the PUCCH resource amount may be determined by using both a parameter that does not consider (ignore) the PUCCH PTRS and a parameter that considers the PUCCH PTRS.
  • CTRL RB may correspond to the number of subcarriers for UCI in a symbol containing PUCCH PTRS
  • N SC, CTRL-PTRS RB may correspond to the number of subcarriers for UCI in a symbol containing PUCCH PTRS. May correspond to.
  • N symb-UCI-PTRS indicating the number of symbols of PTRS for PUCCH.
  • N symb-UCI may correspond to the number of symbols containing PUCCH PTRS in the slot
  • N symb-UCI-PTRS may correspond to the number of symbols containing PUCCH PTRS in the slot. ..
  • FIG. 3 is a diagram showing an example of a parameter that does not consider the PTRS for PUCCH and a parameter that considers the PTRS for PUCCH.
  • This example is an example of PF3, and for the sake of simplicity, it is assumed that there is no DMRS. Although only the time frequency resource of one resource block is shown, a plurality of resource blocks may be used.
  • the mapping of PTRS and UCI is just one example.
  • N SC, CTRL RB * N symb-UCI + N SC, CTRL -PTRS RB * N simb-UCI-PTRS corresponds to the number of REs used for UCI excluding PTRS in one resource block. Therefore, the UE uses N SC, ctrl RB * N symb-UCI of the formula used to determine the PUCCH resource of Rel-15 NR, and (N SC, ctrl RB * N symb-UCI + N SC, ctrl-PTRS RB * N.
  • the amount of PUCCH resources may be calculated based on the formula replaced with simb-UCI-PTRS ).
  • UE has a CRC bit HARQ-ACK information bit size O CRC size O ACK, when transmitting in PUCCH in PUCCH resources including M RB PUCCH number of PRB, the UE is below M RB PUCCH Therefore, the minimum PRB number MRB, min PUCCH that satisfies the following equations 7 and 8 may be determined.
  • the UE may transmit UCI (HARQ-ACK) using the PUCCH resource of MRB , min PUCCH .
  • Equation 7 (O ACK + O CRC ) ⁇ M RB, min PUCCH ⁇ (N SC, ctrl RB * N simb-UCI + N SC, ctrl-PTRS RB * N symb-UCI-PTRS ) ⁇ Q m ⁇ r (Equation 8) if M RB PUCCH > 1, (O ACK + O CRC )> (M RB, min PUCCH -1) ⁇ (N SC, ctrl RB * N simb-UCI + N SC, ctrl-PTRS RB * N symb- UCI-PTRS) ⁇ Q m ⁇ r
  • the UE can appropriately determine the PUCCH resource even when the PTRS for PUCCH is introduced.
  • the third embodiment relates to determining whether or not PTRS for PUCCH as described in the first embodiment is included in PUCCH (whether or not it exists or not).
  • the UE may set the presence or absence of PTRS for PUCCH by higher layer signaling.
  • the presence or absence of PTRS for PUCCH may be set for each UE or each UE group.
  • the presence or absence of PTRS for PUCCH may be set for each PUCCH format.
  • one PUCCH format may be set to include PTRS and another PUCCH format may be set to not include PTRS.
  • the presence or absence of PTRS for PUCCH may be set for each PUCCH resource.
  • the presence or absence of PTRS for PUCCH may be set for each PUCCH resource set.
  • the UE may assume that the presence or absence of PTRS for PUCCH is the same as the presence or absence of PTRS of at least one of PUSCH and PDSCH. That is, the UE may determine the presence or absence of PTRS for PUCCH based on the setting of at least one PTRS of PUSCH and PDSCH.
  • the UE may be assumed to include PTRS for PUCCH in PUCCH even if it is not set by upper layer signaling.
  • a UE corresponding to NR of Rel-16 or later may assume that PUCCH includes PTRS for PUCCH.
  • the presence or absence of PTRS for PUCCH may depend on the presence or absence of at least one PTRS of PDCCH corresponding to the PUCCH, PDSCH corresponding to the PUCCH, and PUSCH (or any PUSCH) corresponding to the PUCCH.
  • the UE may determine the presence or absence of PTRS for PUCCH based on the PDCCH corresponding to the PUCCH (PDCCH receiving the DCI that schedules the PUCCH), the PDCCH corresponding to the PUCCH, and the like (for example,). If PTRS is present in either or both of PDCCH and PDSCH, PUCCH should also include PTRS).
  • the presence or absence of PTRS for PUCCH is determined by the presence or absence of at least one frequency domain (for example, the position of a frequency resource) of the PUCCH, the PDCCH corresponding to the PUCCH, the PDSCH corresponding to the PUCCH, and the PUSCH (or any PUSCH) corresponding to the PUCCH. , The frequency range to which it belongs, etc.). For example, when the PUCCH is transmitted by FR4, it may be assumed that the PUCCH includes the PTRS for the PUCCH.
  • a predetermined cell for example, a primary cell (PCell)
  • a PUCCH secondary cell PUCCH secondary Cell (SCell)
  • the case of a specific subcarrier interval, and the case where a specific subcarrier interval is set in a predetermined cell may be read as each other.
  • the UE transmits PUCCH in any of such predetermined cells.
  • it may be assumed that the PTRS for PUCCH is included.
  • the specific subcarrier interval is a subcarrier interval larger than a predetermined value (for example, 120 kHz), or a subcarrier interval when the parameter ⁇ corresponding to numerology is larger than a predetermined value (for example, 3). You may.
  • FR4 may be divided into a plurality of parts (for example, sub-frequency range or sub-FRs).
  • the above aspect for example, a configuration different from Rel.15, PTRS for PUCCH, etc.
  • a subband exceeding a predetermined frequency for example, 52.6 GHz
  • the above aspect for example, a configuration different from Rel.15, a configuration in which PTRS for PUCCH is included in PUCCH, etc.
  • some subbands exceeding a predetermined frequency for example, 52.6 GHz
  • a configuration similar to that of the existing system for example, Rel.15
  • a configuration in which the PUCCH PTRS is not included in the PUCCH may be applied to the subband.
  • wireless communication system Wireless communication system
  • communication is performed using any one of the wireless communication methods according to each of the above-described embodiments of the present disclosure or a combination thereof.
  • FIG. 4 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • the wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc. specified by Third Generation Partnership Project (3GPP). ..
  • the wireless communication system 1 may support dual connectivity between a plurality of Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)).
  • MR-DC is dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), and dual connectivity between NR and LTE (NR-E).
  • -UTRA Dual Connectivity (NE-DC) may be included.
  • the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)).
  • the NR base station (gNB) is MN
  • the LTE (E-UTRA) base station (eNB) is SN.
  • the wireless communication system 1 has dual connectivity between a plurality of base stations in the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )) May be supported.
  • a plurality of base stations in the same RAT for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) in which both MN and SN are NR base stations (gNB). )
  • NR-NR Dual Connectivity NR-DC
  • gNB NR base stations
  • the wireless communication system 1 includes a base station 11 that forms a macro cell C1 having a relatively wide coverage, and a base station 12 (12a-12c) that is arranged in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. You may prepare.
  • the user terminal 20 may be located in at least one cell. The arrangement, number, and the like of each cell and the user terminal 20 are not limited to the mode shown in the figure.
  • the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.
  • the user terminal 20 may be connected to at least one of the plurality of base stations 10.
  • the user terminal 20 may use at least one of carrier aggregation (Carrier Aggregation (CA)) and dual connectivity (DC) using a plurality of component carriers (Component Carrier (CC)).
  • CA Carrier Aggregation
  • DC dual connectivity
  • CC Component Carrier
  • Each CC may be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)).
  • the macro cell C1 may be included in FR1 and the small cell C2 may be included in FR2.
  • FR1 may be in a frequency band of 6 GHz or less (sub 6 GHz (sub-6 GHz)), and FR2 may be in a frequency band higher than 24 GHz (above-24 GHz).
  • the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a frequency band higher than FR2.
  • the user terminal 20 may perform communication using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) in each CC.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • the plurality of base stations 10 may be connected by wire (for example, optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (for example, NR communication).
  • wire for example, optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.
  • NR communication for example, when NR communication is used as a backhaul between base stations 11 and 12, the base station 11 corresponding to the upper station is an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to a relay station (relay) is IAB. It may be called a node.
  • IAB Integrated Access Backhaul
  • relay station relay station
  • the base station 10 may be connected to the core network 30 via another base station 10 or directly.
  • the core network 30 may include at least one such as Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.
  • a wireless access method based on Orthogonal Frequency Division Multiplexing may be used.
  • OFDM Orthogonal Frequency Division Multiplexing
  • DL Downlink
  • UL Uplink
  • CP-OFDM Cyclic Prefix OFDM
  • DFT-s-OFDM Discrete Fourier Transform Spread OFDM
  • OFDMA Orthogonal Frequency Division Multiple. Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the wireless access method may be called a waveform.
  • another wireless access system for example, another single carrier transmission system, another multi-carrier transmission system
  • the UL and DL wireless access systems may be used as the UL and DL wireless access systems.
  • downlink shared channels Physical Downlink Shared Channel (PDSCH)
  • broadcast channels Physical Broadcast Channel (PBCH)
  • downlink control channels Physical Downlink Control
  • Channel PDCCH
  • the uplink shared channel Physical Uplink Shared Channel (PUSCH)
  • the uplink control channel Physical Uplink Control Channel (PUCCH)
  • the random access channel shared by each user terminal 20 are used.
  • Physical Random Access Channel (PRACH) Physical Random Access Channel or the like may be used.
  • User data, upper layer control information, System Information Block (SIB), etc. are transmitted by PDSCH.
  • User data, upper layer control information, and the like may be transmitted by the PUSCH.
  • the Master Information Block (MIB) may be transmitted by the PBCH.
  • Lower layer control information may be transmitted by PDCCH.
  • the lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of PDSCH and PUSCH.
  • DCI Downlink Control Information
  • the DCI that schedules PDSCH may be called DL assignment, DL DCI, etc.
  • the DCI that schedules PUSCH may be called UL grant, UL DCI, etc.
  • the PDSCH may be read as DL data
  • the PUSCH may be read as UL data.
  • a control resource set (COntrol REsource SET (CORESET)) and a search space (search space) may be used to detect the PDCCH.
  • CORESET corresponds to a resource that searches for DCI.
  • the search space corresponds to the search area and search method of PDCCH candidates (PDCCH candidates).
  • One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a search space based on the search space settings.
  • One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels.
  • One or more search spaces may be referred to as a search space set.
  • the "search space”, “search space set”, “search space setting”, “search space set setting”, “CORESET”, “CORESET setting”, etc. of the present disclosure may be read as each other.
  • channel state information (Channel State Information (CSI)
  • delivery confirmation information for example, it may be called Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.
  • scheduling request (Scheduling Request ( Uplink Control Information (UCI) including at least one of SR))
  • the PRACH may transmit a random access preamble for establishing a connection with the cell.
  • downlinks, uplinks, etc. may be expressed without “links”. Further, it may be expressed without adding "Physical" at the beginning of various channels.
  • a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), and the like may be transmitted.
  • the DL-RS includes a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), and a demodulation reference signal (DeModulation).
  • CRS Cell-specific Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • DeModulation Demodulation reference signal
  • Reference Signal (DMRS)), positioning reference signal (Positioning Reference Signal (PRS)), phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), and the like may be transmitted.
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be, for example, at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • the signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS / PBCH block, SS Block (SSB) and the like.
  • SS, SSB and the like may also be called a reference signal.
  • a measurement reference signal Sounding Reference Signal (SRS)
  • a demodulation reference signal DMRS
  • UL-RS Uplink Reference Signal
  • UE-specific Reference Signal UE-specific Reference Signal
  • FIG. 5 is a diagram showing an example of the configuration of the base station according to the embodiment.
  • the base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission line interface 140.
  • the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140 may each be provided with one or more.
  • the functional blocks of the feature portion in the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. A part of the processing of each part described below may be omitted.
  • the control unit 110 controls the entire base station 10.
  • the control unit 110 can be composed of a controller, a control circuit, and the like described based on the common recognition in the technical field according to the present disclosure.
  • the control unit 110 may control signal generation, scheduling (for example, resource allocation, mapping) and the like.
  • the control unit 110 may control transmission / reception, measurement, and the like using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140.
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 120.
  • the control unit 110 may perform call processing (setting, release, etc.) of the communication channel, state management of the base station 10, management of radio resources, and the like.
  • the transmission / reception unit 120 may include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123.
  • the baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212.
  • the transmission / reception unit 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like, which are described based on common recognition in the technical fields according to the present disclosure. be able to.
  • the transmission / reception unit 120 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 1211 and an RF unit 122.
  • the receiving unit may be composed of a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.
  • the transmitting / receiving antenna 130 can be composed of an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna.
  • the transmission / reception unit 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 120 may receive the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 120 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 120 processes, for example, Packet Data Convergence Protocol (PDCP) layer processing and Radio Link Control (RLC) layer processing (for example, RLC) for data, control information, etc. acquired from control unit 110.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • HARQ retransmission control HARQ retransmission control
  • the transmission / reception unit 120 performs channel coding (may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (Discrete Fourier Transform (DFT)) for the bit string to be transmitted.
  • the base band signal may be output by performing processing (if necessary), inverse fast Fourier transform (IFFT) processing, precoding, digital-analog transform, and other transmission processing.
  • IFFT inverse fast Fourier transform
  • the transmission / reception unit 120 may perform modulation, filtering, amplification, etc. on the baseband signal to the radio frequency band, and transmit the signal in the radio frequency band via the transmission / reception antenna 130. ..
  • the transmission / reception unit 120 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 130.
  • the transmission / reception unit 120 (reception processing unit 1212) performs analog-digital conversion, fast Fourier transform (FFT) processing, and inverse discrete Fourier transform (IDFT) on the acquired baseband signal. )) Processing (if necessary), filtering, decoding, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing are applied. User data and the like may be acquired.
  • FFT fast Fourier transform
  • IDFT inverse discrete Fourier transform
  • the transmission / reception unit 120 may perform measurement on the received signal.
  • the measuring unit 123 may perform Radio Resource Management (RRM) measurement, Channel State Information (CSI) measurement, or the like based on the received signal.
  • the measuring unit 123 has received power (for example, Reference Signal Received Power (RSRP)) and reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)).
  • RSRP Reference Signal Received Power
  • RSSQ Reference Signal Received Quality
  • SINR Signal to Noise Ratio
  • Signal strength for example, Received Signal Strength Indicator (RSSI)
  • propagation path information for example, CSI
  • the measurement result may be output to the control unit 110.
  • the transmission line interface 140 transmits and receives signals (backhaul signaling) to and from devices included in the core network 30, other base stations 10, and the like, and provides user data (user plane data) and control plane for the user terminal 20. Data or the like may be acquired or transmitted.
  • the transmitting unit and the receiving unit of the base station 10 in the present disclosure may be composed of at least one of the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission line interface 140.
  • control unit 110 may receive a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)) for the uplink control channel (PUCCH) from the user terminal 20.
  • PTRS Phase Tracking Reference Signal
  • the control unit 110 may reduce (correct) the phase noise of the PUCCH based on the PTRS.
  • FIG. 6 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • the user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230.
  • the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may each be provided with one or more.
  • this example mainly shows the functional blocks of the feature portion in the present embodiment, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. A part of the processing of each part described below may be omitted.
  • the control unit 210 controls the entire user terminal 20.
  • the control unit 210 can be composed of a controller, a control circuit, and the like described based on the common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the control unit 210 may control transmission / reception, measurement, and the like using the transmission / reception unit 220 and the transmission / reception antenna 230.
  • the control unit 210 may generate data to be transmitted as a signal, control information, a sequence, and the like, and transfer the data to the transmission / reception unit 220.
  • the transmission / reception unit 220 may include a baseband unit 221 and an RF unit 222, and a measurement unit 223.
  • the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
  • the transmission / reception unit 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, and the like, which are described based on the common recognition in the technical field according to the present disclosure.
  • the transmission / reception unit 220 may be configured as an integrated transmission / reception unit, or may be composed of a transmission unit and a reception unit.
  • the transmission unit may be composed of a transmission processing unit 2211 and an RF unit 222.
  • the receiving unit may be composed of a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.
  • the transmitting / receiving antenna 230 can be composed of an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna.
  • the transmission / reception unit 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transmission / reception unit 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmission / reception unit 220 may form at least one of a transmission beam and a reception beam by using digital beamforming (for example, precoding), analog beamforming (for example, phase rotation), and the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission / reception unit 220 processes, for example, PDCP layer processing, RLC layer processing (for example, RLC retransmission control), and MAC layer processing (for example, for data, control information, etc. acquired from the control unit 210). , HARQ retransmission control), etc., to generate a bit string to be transmitted.
  • the transmission / reception unit 220 (transmission processing unit 2211) performs channel coding (may include error correction coding), modulation, mapping, filtering processing, DFT processing (if necessary), and IFFT processing for the bit string to be transmitted. , Precoding, digital-to-analog conversion, and other transmission processing may be performed to output the baseband signal.
  • Whether or not to apply the DFT process may be based on the transform precoding setting.
  • the transmission / reception unit 220 transmission processing unit 2211 described above for transmitting a channel (for example, PUSCH) using the DFT-s-OFDM waveform when the transform precoding is enabled.
  • the DFT process may be performed as the transmission process, and if not, the DFT process may not be performed as the transmission process.
  • the transmission / reception unit 220 may perform modulation, filtering, amplification, etc. to the radio frequency band on the baseband signal, and transmit the signal in the radio frequency band via the transmission / reception antenna 230. ..
  • the transmission / reception unit 220 may perform amplification, filtering, demodulation to a baseband signal, or the like on the signal in the radio frequency band received by the transmission / reception antenna 230.
  • the transmission / reception unit 220 (reception processing unit 2212) performs analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering processing, demapping, demodulation, and decoding (error correction) for the acquired baseband signal. Decoding may be included), MAC layer processing, RLC layer processing, PDCP layer processing, and other reception processing may be applied to acquire user data and the like.
  • the transmission / reception unit 220 may perform measurement on the received signal.
  • the measuring unit 223 may perform RRM measurement, CSI measurement, or the like based on the received signal.
  • the measuring unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), propagation path information (for example, CSI), and the like.
  • the measurement result may be output to the control unit 210.
  • the transmitter and receiver of the user terminal 20 in the present disclosure may be composed of at least one of the transmitter / receiver 220 and the transmitter / receiver antenna 230.
  • the control unit 210 may determine the uplink control channel resource (PUCCH resource) in consideration of the phase tracking reference signal (Phase Tracking Reference Signal (PTRS)) for the uplink control channel (PUCCH). ..
  • the determination of the PUCCH resource may include the determination of the start position of the PUCCH resource, or may include the determination of the amount of the PUCCH resource (for example, the number of resource blocks used for UCI transmission).
  • the control unit 210 may determine the PUCCH resource without considering the PTRS.
  • the transmission / reception unit 220 may transmit uplink control information (UCI) using the determined uplink control channel resource.
  • UCI uplink control information
  • the transmission / reception unit 220 may transmit the PTRS.
  • the control unit 210 may determine the uplink control channel resource based on the number of resource elements used for mapping uplink control information, excluding the PTRS.
  • the number of the resource elements, as described above for the second embodiment, N SC, ctrl RB * N symb-UCI + N SC, may be obtained by ctrl-PTRS RB * N symb- UCI-PTRS.
  • each functional block is realized by using one physically or logically connected device, or directly or indirectly (for example, two or more physically or logically separated devices). , Wired, wireless, etc.) and may be realized using these plurality of devices.
  • the functional block may be realized by combining the software with the one device or the plurality of devices.
  • the functions include judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, selection, establishment, comparison, assumption, expectation, and deemed. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (constituent unit) for functioning transmission may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the method of realizing each of them is not particularly limited.
  • the base station, user terminal, and the like in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure.
  • FIG. 7 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • the base station 10 and the user terminal 20 described above 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 hardware configuration of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured not to include some of the devices.
  • processor 1001 may be a plurality of processors. Further, the processing may be executed by one processor, or the processing may be executed simultaneously, sequentially, or by using other methods by two or more processors.
  • the processor 1001 may be mounted by one or more chips.
  • the processor 1001 For each function of the base station 10 and the user terminal 20, for example, by loading predetermined software (program) on hardware such as the processor 1001 and the memory 1002, the processor 1001 performs an operation and communicates via the communication device 1004. It is realized by controlling at least one of reading and writing of data in the memory 1002 and the storage 1003.
  • predetermined software program
  • the processor 1001 operates, for example, an operating system to control the entire computer.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, registers, and the like.
  • CPU central processing unit
  • control unit 110 210
  • transmission / reception unit 120 220
  • the like may be realized by the processor 1001.
  • the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and executes various processes according to these.
  • a program program code
  • the control unit 110 may be realized by a control program stored in the memory 1002 and operating in the processor 1001, and may be realized in the same manner for other functional blocks.
  • the memory 1002 is a computer-readable recording medium, for example, at least a Read Only Memory (ROM), an Erasable Programmable ROM (EPROM), an Electrically EPROM (EEPROM), a Random Access Memory (RAM), or any other suitable storage medium. It may be composed of one.
  • the memory 1002 may be referred to as 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, or the like that can be executed to implement the wireless communication method according to the embodiment of the present disclosure.
  • the storage 1003 is a computer-readable recording medium, for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disc (Compact Disc ROM (CD-ROM)), a digital versatile disk, etc.). At least one of Blu-ray® disks, removable disks, hard disk drives, smart cards, flash memory devices (eg cards, sticks, key drives), magnetic stripes, databases, servers, and other suitable storage media. It may be composed of.
  • the storage 1003 may be referred to as an auxiliary storage device.
  • the communication device 1004 is hardware (transmission / reception device) for communicating 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, for example, a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)). It may be configured to include.
  • the transmission / reception unit 120 (220), the transmission / reception antenna 130 (230), and the like described above may be realized by the communication device 1004.
  • the transmission / reception unit 120 (220) may be physically or logically separated from the transmission unit 120a (220a) and the reception unit 120b (220b).
  • the input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives an input from the outside.
  • the output device 1006 is an output device (for example, a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that outputs to the outside.
  • the input device 1005 and the output device 1006 may have an integrated configuration (for example, a touch panel).
  • each device such as the processor 1001 and the memory 1002 is connected by the bus 1007 for communicating information.
  • the bus 1007 may be configured by using a single bus, or may be configured by using a different bus for each device.
  • the base station 10 and the user terminal 20 include a microprocessor, a digital signal processor (Digital Signal Processor (DSP)), an Application Specific Integrated Circuit (ASIC), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), and the like. It may be configured to include hardware, and a part or all of each functional block may be realized by using the hardware. For example, processor 1001 may be implemented using at least one of these hardware.
  • DSP Digital Signal Processor
  • ASIC Application Specific Integrated Circuit
  • PLD Programmable Logic Device
  • FPGA Field Programmable Gate Array
  • the wireless frame may be composed of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) constituting the wireless frame may be referred to as a subframe.
  • the subframe may be composed of one or more slots in the time domain.
  • the subframe may have a fixed time length (eg, 1 ms) that is independent of numerology.
  • the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel.
  • Numerology includes, for example, subcarrier spacing (SubCarrier Spacing (SCS)), bandwidth, symbol length, cyclic prefix length, transmission time interval (Transmission Time Interval (TTI)), number of symbols per TTI, and wireless frame configuration.
  • SCS subcarrier Spacing
  • TTI Transmission Time Interval
  • a specific filtering process performed by the transmitter / receiver in the frequency domain, a specific windowing process performed by the transmitter / receiver in the time domain, and the like may be indicated.
  • the slot may be composed of one or more symbols in the time domain (Orthogonal Frequency Division Multiple Access (OFDMA) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.). Further, the slot may be a time unit based on numerology.
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • the slot may include a plurality of mini slots. Each minislot may consist of one or more symbols in the time domain. Further, the mini slot may be called a sub slot. A minislot may consist of a smaller number of symbols than the slot.
  • a PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as a PDSCH (PUSCH) mapping type A.
  • the PDSCH (or PUSCH) transmitted using the minislot may be referred to as PDSCH (PUSCH) mapping type B.
  • the wireless frame, subframe, slot, mini slot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may have different names corresponding to each.
  • the time units such as frames, subframes, slots, mini slots, and symbols in the present disclosure may be read as each other.
  • one subframe may be called TTI
  • a plurality of consecutive subframes may be called TTI
  • one slot or one minislot may be called TTI. That is, 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. It may be.
  • the unit representing TTI may be called a slot, a mini slot, or the like instead of a subframe.
  • TTI refers to, for example, the minimum time unit of scheduling in wireless communication.
  • the base station schedules each user terminal to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) in TTI units.
  • the definition of TTI is not limited to this.
  • 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 or link adaptation.
  • the time interval for example, the number of symbols
  • the transport block, code block, code word, etc. may be shorter than the TTI.
  • one or more TTIs may be the minimum time unit for scheduling. Further, the number of slots (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 referred to as a normal TTI (TTI in 3GPP Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, or the like.
  • TTIs shorter than normal TTIs may be referred to as shortened TTIs, short TTIs, partial TTIs (partial or fractional TTIs), shortened subframes, short subframes, minislots, subslots, slots, and the like.
  • the long TTI (for example, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and the short TTI (for example, shortened TTI, etc.) is less than the TTI length of the long TTI and 1 ms. It may be read as a TTI having the above TTI length.
  • 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 in the frequency domain.
  • the number of subcarriers contained in the RB may be the same regardless of the numerology, and may be, for example, 12.
  • the number of subcarriers contained 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 1 slot, 1 mini slot, 1 subframe or 1 TTI.
  • Each 1TTI, 1 subframe, etc. may be composed of one or a plurality of resource blocks.
  • one or more RBs are a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, and an RB. It may be called a pair or the like.
  • PRB Physical RB
  • SCG sub-carrier Group
  • REG resource element group
  • PRB pair an RB. It may be called a pair or the like.
  • the resource block may be composed of one or a plurality of resource elements (Resource Element (RE)).
  • RE Resource Element
  • 1RE may be a radio resource area of 1 subcarrier and 1 symbol.
  • Bandwidth Part (which may also be called partial bandwidth) represents a subset of consecutive common resource blocks (RBs) for a neurology in a carrier. May be good.
  • the common RB may be specified by the index of the RB with respect to the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • the BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP UL BWP
  • BWP for DL DL BWP
  • One or more BWPs may be set in one carrier for the UE.
  • At least one of the configured BWPs may be active, and the UE may not expect to send or receive a given signal / channel outside the active BWP.
  • “cell”, “carrier” and the like in this disclosure may be read as “BWP”.
  • the above-mentioned structures such as wireless frames, subframes, slots, mini slots, and symbols are merely examples.
  • the number of subframes contained in a wireless frame the number of slots per subframe or wireless frame, the number of minislots contained within a slot, the number of symbols and RBs contained in a slot or minislot, included in the RB.
  • the number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be changed in various ways.
  • the information, parameters, etc. described in the present disclosure may be expressed using absolute values, relative values from predetermined values, or using other corresponding information. It may be represented. For example, radio resources may be indicated by a given index.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. may be voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any of these. It may be represented by a combination of.
  • information, signals, etc. can be output from the upper layer to the lower layer and from the lower layer to at least one of the upper layers.
  • Information, signals, etc. may be input / output via a plurality of network nodes.
  • the input / output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information, signals, etc. can be overwritten, updated, or added. The output information, signals, etc. may be deleted. The input information, signals, etc. may be transmitted to other devices.
  • the notification of information is not limited to the mode / embodiment described in the present disclosure, and may be performed by using another method.
  • the notification of information in the present disclosure includes physical layer signaling (for example, downlink control information (DCI)), uplink control information (Uplink Control Information (UCI))), and higher layer signaling (for example, Radio Resource Control). (RRC) signaling, broadcast information (master information block (MIB), system information block (SIB), etc.), medium access control (MAC) signaling), other signals or combinations thereof May be carried out by.
  • 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 referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), and the like.
  • the RRC signaling may be called an RRC message, and may be, for example, an RRC connection setup (RRC Connection Setup) message, an RRC connection reconfiguration (RRC Connection Reconfiguration) message, or the like.
  • MAC signaling may be notified using, for example, a MAC control element (MAC Control Element (CE)).
  • CE MAC Control Element
  • the notification of predetermined information is not limited to the explicit notification, but implicitly (for example, by not notifying the predetermined information or another information). May be done (by notification of).
  • the determination may be made by a value represented by 1 bit (0 or 1), or by a boolean value represented by true or false. , May be done by numerical comparison (eg, comparison with a given value).
  • Software is an instruction, instruction set, code, code segment, program code, program, subprogram, software module, whether called software, firmware, middleware, microcode, hardware description language, or another name.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted to mean.
  • software, instructions, information, etc. may be transmitted and received via a transmission medium.
  • a transmission medium For example, a website where software uses at least one of wired technology (coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
  • wired technology coaxial cable, fiber optic cable, twist pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • Network may mean a device (eg, a base station) included in the network.
  • precoding "precoding weight”
  • QCL Quality of Co-Co-Location
  • TCI state Transmission Configuration Indication state
  • space "Spatial relation”, “spatial domain filter”, “transmission power”, “phase rotation”, "antenna port”, “antenna port group”, “layer”, “number of layers”
  • Terms such as “rank”, “resource”, “resource set”, “resource group”, “beam”, “beam width”, “beam angle”, "antenna”, “antenna element", “panel” are compatible.
  • Base station BS
  • radio base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission point (Transmission Point (TP))
  • RP Reception point
  • TRP Transmission / Reception Point
  • Panel , "Cell”, “sector”, “cell group”, “carrier”, “component carrier” and the like
  • Base stations are sometimes referred to by terms such as macrocells, small cells, femtocells, and picocells.
  • the base station can accommodate one or more (for example, three) cells.
  • a base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, each smaller area being a base station subsystem (eg, a small indoor base station (Remote Radio)).
  • Communication services can also be provided by Head (RRH))).
  • RRH Head
  • 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 that provide communication services in this coverage.
  • MS mobile station
  • UE user equipment
  • terminal terminal
  • Mobile stations include subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals. , Handset, user agent, mobile client, client or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, or the like.
  • At least one of the base station and the mobile station may be a device mounted on the mobile body, the mobile body itself, or the like.
  • the moving body may be a vehicle (eg, car, airplane, etc.), an unmanned moving body (eg, drone, self-driving car, etc.), or a robot (manned or unmanned). ) May be.
  • at least one of the base station and the mobile station includes a device that does not necessarily move during communication operation.
  • at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be read by the user terminal.
  • communication between a base station and a user terminal is replaced with communication between a plurality of user terminals (for example, it may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.).
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • Each aspect / embodiment of the present disclosure may be applied to the configuration.
  • the user terminal 20 may have 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”).
  • the uplink, downlink, and the like may be read as side channels.
  • the user terminal in the present disclosure may be read as a base station.
  • the base station 10 may have the functions of the user terminal 20 described above.
  • the operation performed by the base station may be performed by its upper node (upper node) in some cases.
  • various operations performed for communication with a terminal are performed by the base station and one or more network nodes other than the base station (for example,).
  • Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. can be considered, but it is not limited to these), or it is clear that it can be performed by a combination thereof.
  • each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched with execution.
  • the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in the present disclosure may be changed as long as there is no contradiction.
  • the methods described in the present disclosure present elements of various steps using exemplary order, and are not limited to the particular order presented.
  • LTE Long Term Evolution
  • LTE-A LTE-Advanced
  • LTE-B LTE-Beyond
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • Future Radio Access FAA
  • New-Radio Access Technology RAT
  • NR New Radio
  • NX New radio access
  • Future generation radio access FX
  • GSM Global System for Mobile communications
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • a plurality of systems may be applied in combination (for example, a combination of LTE or LTE-A and 5G).
  • references 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 can be used in the present disclosure as a convenient way to distinguish between two or more elements. Thus, references to the first and second elements do not mean that only two elements can be adopted or that the first element must somehow precede the second element.
  • determining may include a wide variety of actions.
  • judgment (decision) means judgment (judging), calculation (calculating), calculation (computing), processing (processing), derivation (deriving), investigation (investigating), search (looking up, search, inquiry) ( For example, searching in a table, database or another data structure), ascertaining, etc. may be considered to be "judgment”.
  • judgment (decision) means receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), access (for example). It may be regarded as “judgment (decision)" of "accessing” (for example, accessing data in memory).
  • judgment (decision) is regarded as “judgment (decision)” of solving, selecting, choosing, establishing, comparing, and the like. May be good. That is, “judgment (decision)” may be regarded as “judgment (decision)” of some action.
  • the "maximum transmission power" described in the present disclosure may mean the maximum value of the transmission power, may mean the nominal UE maximum transmit power, or may mean the rated maximum transmission power (the). It may mean rated UE maximum transmit power).
  • connection are any direct or indirect connection or connection between two or more elements. Means, and can include the presence of one or more intermediate elements between two elements that are “connected” or “joined” to each other.
  • the connection 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 microwaves. It can be considered to be “connected” or “coupled” to each other using frequency, electromagnetic energy having wavelengths in the light (both visible and invisible) regions, and the like.
  • the term "A and B are different” may mean “A and B are different from each other”.
  • the term may mean that "A and B are different from C”.
  • Terms such as “separate” and “combined” may be interpreted in the same way as “different”.

Landscapes

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

Abstract

Un terminal appartenant à un mode de réalisation de la présente invention est caractérisé en ce qu'il comprend une unité de commande pour déterminer une ressource de canal de commande de liaison montante, en tenant compte d'un signal de référence de suivi de phase (PTRS) pour des canaux de commande de liaison montante, et une unité de transmission pour transmettre des informations de commande à l'aide de la ressource de canal de commande de liaison montante déterminée. Selon un mode de réalisation de la présente invention, une communication peut être effectuée de manière appropriée même dans un environnement dans lequel un bruit de phase important est anticipé.
PCT/JP2019/025259 2019-06-25 2019-06-25 Terminal et procédé de communication sans fil Ceased WO2020261402A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2019/025259 WO2020261402A1 (fr) 2019-06-25 2019-06-25 Terminal et procédé de communication sans fil
CN201980097837.3A CN114009119B (zh) 2019-06-25 2019-06-25 终端以及无线通信方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/025259 WO2020261402A1 (fr) 2019-06-25 2019-06-25 Terminal et procédé de communication sans fil

Publications (1)

Publication Number Publication Date
WO2020261402A1 true WO2020261402A1 (fr) 2020-12-30

Family

ID=74060822

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/025259 Ceased WO2020261402A1 (fr) 2019-06-25 2019-06-25 Terminal et procédé de communication sans fil

Country Status (2)

Country Link
CN (1) CN114009119B (fr)
WO (1) WO2020261402A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210376978A1 (en) * 2020-06-02 2021-12-02 Qualcomm Incorporated Amplitude-modulated phase tracking reference signals for a multilayer communication link
WO2022213266A1 (fr) 2021-04-06 2022-10-13 Apple Inc. Transmissions simultanées pucch et pusch sur différentes porteuses composantes pour nouvelle radio

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102216251B1 (ko) * 2016-11-04 2021-02-17 엘지전자 주식회사 무선 통신 시스템에서 단말과 기지국 간 물리 상향링크 제어 채널 송수신 방법 및 이를 지원하는 장치
US10972238B2 (en) * 2017-06-09 2021-04-06 Apple Inc. System and method for phase tracking reference signal (PT-RS) multiplexing
EP4550902A3 (fr) * 2017-08-11 2025-05-14 Lenovo (Beijing) Limited Détermination d'une association entre un dmrs et un ptrs
CN109787712B (zh) * 2017-11-15 2022-04-29 中国移动通信有限公司研究院 一种上行控制信息的发送、接收方法、终端及网络设备

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Multiplexing and channel coding (Release 15", 3GPP TS 38.212, 24 June 2019 (2019-06-24), pages 43 - 67 *
HUAWEI ET AL.: "Remaining issues on PTRS", 3GPP TSG RAN WG1 #92, 2 March 2018 (2018-03-02), XP051397423, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsg_ran/WGl_RL1/TSGR1_92/Docs/R1-1801459.zip> [retrieved on 20191218] *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210376978A1 (en) * 2020-06-02 2021-12-02 Qualcomm Incorporated Amplitude-modulated phase tracking reference signals for a multilayer communication link
US12218868B2 (en) * 2020-06-02 2025-02-04 Qualcomm Incorporated Amplitude-modulated phase tracking reference signals for a multilayer communication link
WO2022213266A1 (fr) 2021-04-06 2022-10-13 Apple Inc. Transmissions simultanées pucch et pusch sur différentes porteuses composantes pour nouvelle radio
EP4302443A4 (fr) * 2021-04-06 2024-07-03 Apple Inc. Transmissions simultanées pucch et pusch sur différentes porteuses composantes pour nouvelle radio
US12368556B2 (en) 2021-04-06 2025-07-22 Apple Inc. Simultaneous PUCCH and PUSCH transmissions over different component carriers for new radio

Also Published As

Publication number Publication date
CN114009119B (zh) 2025-08-05
CN114009119A (zh) 2022-02-01

Similar Documents

Publication Publication Date Title
JP7177168B2 (ja) 端末、無線通信方法、基地局及びシステム
WO2021024494A1 (fr) Terminal et procédé de communication sans fil
WO2020166045A1 (fr) Terminal utilisateur et procédé de communication sans fil
US12133213B2 (en) Terminal and radio communication method
WO2020144869A1 (fr) Terminal utilisateur et procédé de communication sans fil
WO2020261389A1 (fr) Terminal et procédé de communication sans fil
WO2020144818A1 (fr) Terminal utilisateur et procédé de communication sans fil
WO2020209281A1 (fr) Terminal utilisateur et procédé de communication sans fil
JPWO2020065977A1 (ja) 端末、無線通信方法及びシステム
WO2021124585A1 (fr) Terminal et procédé de communication sans fil
WO2021002012A1 (fr) Terminal et procédé de communication sans fil
WO2020250399A1 (fr) Terminal et procédé de communication sans fil
WO2020059150A1 (fr) Terminal utilisateur et procédé de communication sans fil
WO2021210108A1 (fr) Terminal, procédé de communication sans fil, et station de base
WO2021002011A1 (fr) Terminal et procédé de communication sans fil
WO2020250400A1 (fr) Terminal et procédé de communication radio
WO2020202517A1 (fr) Terminal utilisateur et procédé de communication sans fil
WO2021124586A1 (fr) Terminal et procédé de communication radio
WO2021215379A1 (fr) Terminal, procédé de communication sans fil, et station de base
WO2020250323A1 (fr) Terminal et procédé de communication sans fil
EP3876432A1 (fr) Équipement utilisateur
US20230069690A1 (en) Terminal, radio communication method, and base station
WO2020144782A1 (fr) Équipement utilisateur et procédé de communication sans fil
WO2021156950A1 (fr) Terminal, procédé de communication sans fil et station de base
WO2021156951A1 (fr) Terminal, procédé de communication sans fil et station de base

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19935682

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19935682

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP

WWG Wipo information: grant in national office

Ref document number: 201980097837.3

Country of ref document: CN