WO2022029948A1 - Terminal, procédé de communication sans fil, et station de base - Google Patents

Terminal, procédé de communication sans fil, et station de base Download PDF

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Publication number
WO2022029948A1
WO2022029948A1 PCT/JP2020/030105 JP2020030105W WO2022029948A1 WO 2022029948 A1 WO2022029948 A1 WO 2022029948A1 JP 2020030105 W JP2020030105 W JP 2020030105W WO 2022029948 A1 WO2022029948 A1 WO 2022029948A1
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Prior art keywords
csi
report
transmission
reporting
setting
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PCT/JP2020/030105
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English (en)
Japanese (ja)
Inventor
祐輝 松村
聡 永田
ジン ワン
ウェイチー スン
ラン チン
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株式会社Ｎｔｔドコモ
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Priority to PCT/JP2020/030105 priority Critical patent/WO2022029948A1/fr
Priority to JP2022541034A priority patent/JPWO2022029948A1/ja
Publication of WO2022029948A1 publication Critical patent/WO2022029948A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • This disclosure relates to terminals, wireless communication methods and base stations in next-generation mobile communication systems.
  • a successor system to LTE for example, 5th generation mobile communication system (5G), 5G + (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 or later, etc.
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • NR New Radio
  • the user terminal (User Equipment (UE)) is a UL data channel (eg, Physical Uplink Shared Channel (PUSCH)) and a UL control channel (eg, Physical Uplink).
  • PUSCH Physical Uplink Shared Channel
  • UCI Uplink Control Information
  • PUCCH Physical Uplink Control Channel
  • one of the purposes of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately reporting the UL beam.
  • the terminal includes a receiving unit that receives settings related to uplink (UL) beam reporting by higher layer signaling, and a control unit that controls UL beam reporting based on the settings.
  • a receiving unit that receives settings related to uplink (UL) beam reporting by higher layer signaling
  • a control unit that controls UL beam reporting based on the settings.
  • the UL beam can be reported appropriately.
  • FIG. 1 shows Rel. It is a figure which shows the CSI report setting in 16.
  • FIG. 2 is a diagram showing an example of a CSI report setting to which a UL beam resource setting is added.
  • FIG. 3 is an example of setting the reporting amount for the UL beam.
  • FIG. 4 is a diagram showing an example of UL beam report setting and DL beam report setting.
  • FIG. 5 is a diagram showing an example of a CSI report including a UL beam report.
  • FIG. 6 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 7 is a diagram showing an example of the configuration of the base station according to the embodiment.
  • FIG. 8 is a diagram showing an example of the configuration of the user terminal according to the embodiment.
  • FIG. 9 is a diagram showing an example of the hardware configuration of the base station and the user terminal according to the embodiment.
  • the terminal also referred to as a user terminal, User Equipment (UE), etc.
  • the terminal has Channel State Information (CSI) based on a reference signal (Reference Signal (RS)) (or a resource for the RS).
  • RS Reference Signal
  • Is generated also referred to as determination, calculation, estimation, measurement, etc.
  • the generated CSI is transmitted (also referred to as reporting, feedback, etc.) to the network (for example, a base station).
  • the CSI may be transmitted to the base station using, for example, an uplink control channel (eg, Physical Uplink Control Channel (PUCCH)) or an uplink shared channel (eg, Physical Uplink Shared Channel (PUSCH)).
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Shared Channel
  • the RS used to generate the CSI is, for example, a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a synchronization signal / broadcast channel (Synchronization Signal / Physical Broadcast Channel (SS / PBCH)) block, and synchronization. It may be at least one of a signal (Synchronization Signal (SS)), a reference signal for demodulation (DeModulation Reference Signal (DMRS)), and the like.
  • CSI-RS Channel State Information Reference Signal
  • SS Synchron Signal
  • DMRS DeModulation Reference Signal
  • CSI-RS may include at least one of Non Zero Power (NZP) CSI-RS and CSI-Interference Management (CSI-IM).
  • the SS / PBCH block is a block containing SS and PBCH (and the corresponding DMRS), and may be referred to as an SS block (SSB) or the like.
  • the SS may include 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 CSI includes a channel quality indicator (Channel Quality Indicator (CQI)), a precoding matrix indicator (Precoding Matrix Indicator (PMI)), a CSI-RS resource indicator (CSI-RS Resource Indicator (CRI)), and SS.
  • CQI Channel Quality Indicator
  • PMI Precoding Matrix Indicator
  • CRI CSI-RS Resource Indicator
  • SS / PBCH block resource indicator (SS / PBCH Block Resource Indicator (SSBRI)), layer indicator (Layer Indicator (LI)), rank indicator (Rank Indicator (RI)), L1-RSRP (reference signal reception in layer 1) Even if it includes at least one such as power (Layer 1 Reference Signal Received Power), L1-RSRQ (Reference Signal Received Quality), L1-SINR (Signal to Interference plus Noise Ratio), L1-SNR (Signal to Noise Ratio), etc. good.
  • the report setting information may include at least one of the following, for example.
  • -Information about the type of CSI report (report type information, eg "reportConfigType” in RRC IE)
  • -Information on one or more quantities of CSI to be reported (one or more CSI parameters)
  • CSI quantity information eg, "report Quantity” of RRC IE
  • -Information on RS resources used to generate the amount (the CSI parameter)
  • source information for example, "CSI-ResourceConfigId” of RRC IE.
  • -Information about the frequency domain subject to CSI reporting (frequency domain information, such as "reportFreq Configuration” in RRC IE).
  • the reported amount information may specify at least one combination of the above CSI parameters (for example, CRI, RI, PMI, CQI, LI, L1-RSRP, etc.).
  • the resource information may be the ID of the resource for RS.
  • the RS resource may include, for example, a non-zero power CSI-RS resource or SSB and a CSI-IM resource (for example, a zero power CSI-RS resource).
  • the frequency domain information may indicate the frequency granularity of the CSI report.
  • the frequency particle size may include, for example, wideband and subband.
  • the wide band is the entire CSI reporting band (entire CSI reporting band).
  • the wide band may be, for example, the entire carrier (component carrier (CC), cell, serving cell), or the entire bandwidth part (BWP) within a carrier. There may be.
  • the wide band may be paraphrased as a CSI reporting band, an entire CSI reporting band (entire CSI reporting band), and the like.
  • the sub-band is a part of the wide band, and may be composed of one or more resource blocks (Resource Block (RB) or Physical Resource Block (PRB)).
  • the size of the subband may be determined according to the size of the BWP (number of PRBs).
  • wideband PMI reporting is set (determined)
  • one wideband PMI may be reported for the entire CSI reporting band.
  • subband PMI reporting is configured, a single wideband indication i1 is reported for the entire CSI reporting band and each subband of one or more subbands within the entire CSI reporting.
  • the indication (one subband indication) i 2 (eg, the subband indication of each subband) may be reported.
  • the UE performs channel estimation using the received RS and estimates the channel matrix H.
  • the UE feeds back an index (PMI) determined based on the estimated channel matrix.
  • a CSI report may include one or more types of CSI.
  • the CSI may include at least one of a first type (type 1 CSI) used for single beam selection and a second type (type 2 CSI) used for multi-beam selection.
  • a single beam may be paraphrased as a single layer, and a multi-beam may be paraphrased as a plurality of beams.
  • the type 1 CSI may assume multi-user multiple input multiple outpiut (MIMO), and the type 2 CSI may assume multi-user MIMO.
  • MIMO multi-user multiple input multiple outpiut
  • the above codebook may include a codebook for type 1 CSI (also referred to as a type 1 codebook or the like) and a codebook for type 2 CSI (also referred to as a type 2 codebook or the like).
  • the type 1 CSI may include a type 1 single panel CSI and a type 1 multi-panel CSI, and different codebooks (type 1 single panel codebook, type 1 multi-panel codebook) may be specified.
  • type 1 and type I may be read as each other.
  • type 2 and type II may be read interchangeably.
  • the uplink control information (UCI) type may include at least one of Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), scheduling request (SR), and CSI.
  • HARQ-ACK Hybrid Automatic Repeat reQuest ACKnowledgement
  • SR scheduling request
  • CSI CSI
  • the UCI may be carried by PUCCH or by PUSCH.
  • the UCI can include two CSI parts for subband PMI feedback.
  • CSI Part 1 contains wideband PMI information.
  • CSI Part 2 includes one wideband PMI information and several subband PMI information.
  • CSI Part 1 and CSI Part 2 are separated and coded.
  • the UE is set by the upper layer with N (N ⁇ 1) CSI report setting report settings and M (M ⁇ 1) CSI resource settings resource settings.
  • the CSI report settings include resource settings for channel measurement (resourcesForChannelMeasurement), CSI-IM resource settings for interference (csi-IM-ResourceForInterference), and NZP-CSI-RS settings for interference (nzp-CSI-RS).
  • -ResourceForInterference resource settings for channel measurement
  • csi-IM-ResourceForInterference CSI-IM resource settings for interference
  • nzp-CSI-RS NZP-CSI-RS settings for interference
  • MPE Maximum Permitted Exposure
  • FCC Federal Communication Commission
  • ⁇ Restriction method 1> a limitation using power-management maximum power reduction (P-MPR) is specified.
  • P-MPR power-management maximum power reduction
  • the UE maximum output power P CMAX, f, c is such that the corresponding P UMAX, f, c (measured maximum output power, measured set maximum UE output power) satisfies the following equation (1). , Set.
  • EIRP max is assumed to be the maximum value of the corresponding measured peak equivalent isotropic radiated power (EIRP). It is assumed that P-MPR f and c are values indicating a reduction in the maximum output power permitted for the carrier f of the serving cell c. The P-MPR f, c is introduced into the equation of the UE maximum output power P CMAX, f, c in which the carrier f of the serving cell c is set. This allows the UE to report the maximum output transmit power available to the base station (eg, gNB). This report can be used by the base station to make scheduling decisions.
  • the base station eg, gNB
  • P-MPR f, c to ensure compliance with available electromagnetic energy absorption requirements and address unwanted radiation / self-defense requirements in the case of simultaneous transmissions on multiple RATs for scenarios outside the scope of 3GPP RAN use. It may be used, or it may be used to ensure compliance with the electromagnetic energy absorption requirements available in cases where proximity detection is used to address requirements that require lower maximum output power.
  • UE capability information is introduced to notify the uplink transmission rate that the UE can transmit without the need to apply P-MPR. rice field.
  • the capacity information may be referred to as the maximum uplink duty ratio (maxUplinkDutyCycle-FR2) in Frequency Range 2 (FR2).
  • MaxUplinkDutyCycle-FR2 corresponds to the upper layer parameter.
  • maxUplinkDutyCycle-FR2 may be the upper limit of the UL transmission ratio within a certain evaluation period (for example, 1 second). Rel. At 15 NR, this value is any of n15, n20, n25, n30, n40, n50, n60, n70, n80, n90, n100, and is 15%, 20%, 25%, 30%, 40%, respectively. , 50%, 60%, 70%, 80%, 90%, 100%.
  • maxUplinkDutyCycle-FR2 may be applied to all UE power classes of FR2. Note that maxUplinkDutyCycle-FR2 does not have to specify a default value.
  • the UE will perform P-MPR according to UL scheduling.
  • the restrictions used may be applied. Otherwise, the UE may not apply the P-MPR.
  • MPE requirement electromagnetic power density exposure requirement
  • the question is how to speed up the beam / panel selection based on MPE and how to inform the NW of the selection to avoid blind detection by the network. If beam / panel selection based on MPE is not performed at high speed, system performance may be reduced, such as a decrease in throughput. Also, if the UE voluntarily changes the UL transmit beam and the network does not know the changed UL transmit beam, the network will perform blind detection to determine the UL receive beam, resulting in reduced throughput, etc. There is a risk of performance degradation.
  • the UE reports that the uplink transmit beam does not meet the maximum permissible exposure (MPE) requirement.
  • MPE maximum permissible exposure
  • the UE If the UE is set up for an MPE problem with a report triggered by the UE (eg, by RRC layer signaling) and the UE detects an MPE problem for the indicated UL beam, the UE will experience an MPE problem. May be reported.
  • MPE problems, MPE disorders, failure to meet MPE requirements, and inability to pass MPE requirements may be read interchangeably.
  • MPE safe, MPE conformance, no MPE problem, no MPE failure, meeting MPE requirements, and being able to pass MPE requirements may be read interchangeably.
  • the report of the occurrence of the MPE problem, the report of the MPE problem, the first report, and the request for recovery (solution) of the MPE problem may be read as each other.
  • the UE has an MPE problem if the UL transmit beam or RS specified for UL transmission (eg, PUSCH) does not meet the MPE requirements (if the power parameters for the indicated UL transmit beam do not meet the MPE requirements). May be detected (determined).
  • the UL transmission beam instruction may be an SRS resource indicator (SRI) that indicates a sounding reference signal (SRS) resource for the PUSCH, or spatial relational information for at least one of the PUCCH, the PUSCH, the SRS, and the PRACH.
  • SRI SRS resource indicator
  • SRS sounding reference signal
  • TCI transmission configuration indicator
  • QCL pseudo collocation
  • the MPE requirement may meet at least one of the following: -The P-MPR f, c required in consideration of MPE is larger than the P-MPR threshold. -P CMAX, f, c (maximum output power set in the UE with respect to the carrier f of the serving cell c) calculated in consideration of MPE is smaller than the P CMAX threshold. -The PH value calculated in consideration of MPE (for example, real PH, virtual PH) is smaller than the PH threshold value.
  • At least one of the P-MPR threshold, the PCMAX threshold, and the PH threshold may be predefined or may be set.
  • the UE may determine a UL transmit beam / panel that meets the MPE requirements depending on the detection of the occurrence of the MPE problem.
  • UL transmission beam / panel, MPE conforming beam / panel, MPE safe beam / panel, candidate beam / panel, and new UL transmission beam / panel that meet MPE requirements may be read as each other.
  • MPE conforming beam / panel report, MPE conforming beam / panel list, UL transmission beam / panel change plan may be read interchangeably.
  • the UE may report at least one determined MPE conforming beam / panel and manage the UL beam.
  • FIG. 1 shows Rel. It is a figure which shows the CSI report setting in 16.
  • "resourcesForChannelMeasurement” is a parameter related to channel measurement.
  • "cri-RSRP” and “ssb-Index-RSRP” are parameters related to beam management. If “cri-RSRP” is set, the UE reports the CRI and the L1-RSRP corresponding to that CRI. If “ssb-Index-RSRP” is set, the UE reports SSBRI and the L1-RSRP corresponding to that SSBRI.
  • ReportQuantity-r16 sets the DL beam report amount based on L1-SINR.
  • ReportQuantity-r16 includes “cri-SINR-r16” and “ssb-Index-SINR-r16".
  • "cri-SINR-r16” and “ssb-Index-SINR-r16” are parameters related to beam management. If “cri-SINR-r16” is set, the UE reports the CRI and the L1-SINR corresponding to that CRI. When “ssb-Index-SINR-r16” is set, the UE reports the SSBRI and the L1-SINR corresponding to the SSBRI. If “reportQuantity-r16" is present, “reportQuantity” may be ignored.
  • the L1-RSRP / L1-SINR reporting settings for the DL beam are included in the CSI reporting settings.
  • the CSI report (which may also be referred to as the CSI report, CSI feedback, etc.) may be associated with the priority value.
  • the priority value may be defined using the function Pri iCSI (y, k, c, s).
  • the priority may be read as CSI reporting priority, CSI priority, and the like.
  • y is the type of CSI report (A-CSI report, SP-CSI report, or P-CSI report) and the channel for transmitting the CSI report (Physical Uplink Shared Channel (PUSCH)) or uplink.
  • the value may be based on the link control channel (Physical Uplink Control Channel (PUCCH)).
  • y 0 for A-CSI reports transmitted on PUSCH
  • y 1 for SP-CSI reports transmitted on PUSCH
  • y 2 for SP-CSI reports transmitted on PUCCH
  • the Pri iCSI (y, k, c, s) may be obtained by the following equation (2).
  • Pri iCSI (y, k, c, s) 2 ⁇ N cells ⁇ M s ⁇ y + N cells ⁇ M s ⁇ k + M s ⁇ c + s (2)
  • N cells may be the value of the maximum number of serving cells to be set (upper layer parameter maxNrofServingCells ), and Ms may be the value of the maximum number of CSI reporting settings to be set (upper layer parameter maxNrofCSI-ReportConfigurations).
  • the first The CSI report may mean a higher priority than the second CSI report.
  • the present inventors conceived a terminal as a UE having a receiving unit that receives a setting related to uplink (UL) beam reporting by higher layer signaling and a control unit that controls UL beam reporting based on the setting.
  • UL beam reporting can be adequately performed.
  • a / B may be read as "at least one of A and B".
  • beam index in the present disclosure may be interchangeably read.
  • panel index in the present disclosure may be read interchangeably.
  • panel index in the present disclosure may be read interchangeably.
  • panel index may be read interchangeably.
  • the beam index may include a panel index, or the beam index and the panel index may be shown separately.
  • the beam index may be an SSB index, a CSI-RS, or an SRS index.
  • the panel index may be an antenna group index / antenna set index, an RS group index / RS set index, or any other equivalent index. Beam reports transmitted by the UE may support both non-group and group-based reporting.
  • the reports in this disclosure may be made by higher layer signaling.
  • Upper layer signaling is, for example, Radio Resource Control (RRC) signaling, broadcast information (master information block (MIB), system information block (SIB), etc.), Medium Access Control (MAC). Signaling, etc.
  • RRC Radio Resource Control
  • MIB master information block
  • SIB system information block
  • MAC Medium Access Control
  • the notation "rXX” (for example, r17) in the present disclosure indicates the release number of 3GPP (for example, 3GPP Rel.17).
  • the notation "rXX” may be replaced with a notation corresponding to another release number (for example, r18, r19, r20, etc.) or may be omitted.
  • the DL beam report in the present disclosure may include at least one of the DL beam index, L1-RSRP, and L1-SINR.
  • the UL beam report may include a UL beam index, a UL beam transmit power, a value for MPR, and at least one of the reports on the MPE problem described above.
  • the UL beam report setting and the UL beam report setting in this disclosure may be read as each other.
  • the DL beam report setting and the DL beam report setting may be read as each other.
  • the UE receives the CSI reporting setting including the resource setting of the reference signal (for example, SSB / CSI-RS / SRS) used as the UL beam index by the upper layer signaling (RRC), and receives the CSI report based on the CSI reporting setting.
  • Control send. That is, in the first embodiment, the UL beam reporting setting received by the UE includes the resource setting of the reference signal used as the UL beam index. RS settings and resource settings may be read as each other. The UE reports, for example, the index of the selected UL beam using the resource setting.
  • the CSI report setting ID (CSI-ResourceConfigId) shown in FIG. 1 includes the SSB / CSI-RS setting, but may further include the SRS resource setting.
  • FIG. 2 is a diagram showing an example of a CSI report setting to which a UL beam resource setting is added.
  • the CSI reporting setting may include the UL beam resource setting (resourceForULbeam-r17) for UL beam reporting as the resource setting.
  • the UL beam resource setting (resourceForULbeam-r17) includes the SSB / CSI-RS / SRS resource setting and is used for UL beam reporting.
  • the CSI reporting settings may include reporting settings for the DL beam (eg, L1-RSRP / L1-SINR reporting settings).
  • the CSI reporting settings including the UL beam resource settings (resourceForULbeam-r17) for UL beam reporting, shown in FIG. 2, are applied.
  • the UL beam resource setting (resourceForULbeam-r17) is different from the aspect 1-2 in that the resource setting of SRS is included and the resource setting of SSB / CSI-RS is not included.
  • the UE may apply the setting included in "resourcesForChannelMeasurement" as the resource setting of SSB / CSI-RS. Otherwise (when applying SRS as a UL beam report), the UE may apply the SRS resource settings in the UL Beam Resource Settings (resourceForULbeam-r17).
  • the reported beam index may be an SRS index.
  • the base station may set one or more SSB / CSI-RS / SRS resources.
  • the UE selects up to N RSs out of the RSs configured for UL beam reporting.
  • N may be specified in the specifications or may be set by the network. That is, the number of reported RSs for UL beam reporting is set in the same manner as the number of reported RSs for DL beam reporting (nrofReportedRS).
  • the resources of the UL beam index can be appropriately set.
  • the UE may receive UL beam reporting settings and DL beam reports related to such reporting.
  • the UL beam reporting settings may be settings for reporting on MPE requirements.
  • the DL beam report may be, for example, a report of L1-RSRP / L1-SINR.
  • the UL beam report setting and the DL beam report setting may be separated.
  • the UE may receive a first information element including the UL beam reporting setting and a second CSI information element including the DL beam reporting setting, which is different from the first information element, by higher layer signaling. ..
  • the information element is, for example, a CSI reporting setting.
  • FIG. 3 is an example of setting the reporting amount for the UL beam.
  • the report quantity (reportQuantity-r17) for the UL beam may be set as an RRC parameter.
  • the report quantity (reportQuantity-r17) may be included in the CSI reporting settings or may be included in other settings.
  • “reportQuantity-r17” includes "sri-MPR-r17", “cri-MPR-r17”, “ssb-Index-MPR-r17” which are reporting settings for MPR.
  • the UE reports the SRI indicating the beam index and the MPR corresponding to the SRI.
  • the UE reports the CRI indicating the beam index and the MPR corresponding to the CRI.
  • the UE reports the SSBRI indicating the beam index and the MPR corresponding to the SSBRI.
  • the settings shown in FIG. 3 may be transmitted for UL beam only by higher layer signaling (RRC). If this field (reportQuantity-r17) is present, the UE may ignore the "reportQuantity" and "reportQuantity-r16" in the CSI-ReportConfig. In that case, UL beam measurement / report and DL beam measurement / report may be set for different CSI reports.
  • RRC higher layer signaling
  • the UE may receive the DL beam reporting settings (joint beam measurement / reporting settings for UL and DL) as well as the UL beam reporting settings.
  • the UE may receive one information element, including both UL beam reporting settings and DL beam reporting settings, via higher layer signaling.
  • the information element is, for example, a CSI reporting setting.
  • FIG. 4 is a diagram showing an example of UL beam reporting setting and DL beam reporting setting.
  • UL report amount (reportQuantity-UL-r17) and DL report amount (reportQuantity-DL-r17) are added as RRC parameters.
  • the DL report amount (reportQuantity-DL-r17) may be present only if the UL report amount (reportQuantity-UL-r17) is present.
  • the settings shown in FIG. 4 may be included in the CSI report setting (CSI-ReportConfig) or may be included in other settings. If UL reporting volume (reportQuantity-UL-r17) is present (if set), the UE may ignore the "reportQuantity” and "reportQuantity-r16" in the CSI reporting settings (CSI-ReportConfig).
  • the DL report amount (reportQuantity-DL-r17) may or may not exist.
  • the number of UL beams reported may be the same as the number of DL beams.
  • the RRC parameter "nrofReportedRS” may be applied to both DL and UL beam reporting.
  • a UL beam number different from the DL beam number may be set.
  • the RRC parameter "nrofReportedRS-UL" indicating the number of UL beams may be set.
  • aspect 2-2 in addition to the joint reporting of the DL beam and the UL beam, the reporting of only the UL beam may be supported.
  • Aspect 1-2 is applied as the setting of the beam index, and the resource setting of SSB / CSI-RS / SRS in Aspect 1-2 may be set to the DL beam report or the UL beam report in the CSI report.
  • UL beam reporting may be supported in addition to DL beam reporting (eg L1-RSRP or L1-SINR). That is, UL beam reporting may be set only when DL beam reporting is set.
  • DL beam reporting eg L1-RSRP or L1-SINR
  • the number of UL beams reported may be the same as the number of DL beams.
  • the parameter "nrofReportedRS" indicating the number of beams may be applied to both DL beam reporting and UL beam reporting.
  • a parameter different from the parameter indicating the number of DL beams for example, nrofReportedRS-UL may be set for the number of UL beams.
  • UL beam reporting may be set if the CSI reporting setting has a "resourcesForChannelMeasurement" field for the DL RS setting.
  • the UL beam reporting setting in Aspects 2-3 may be the same as the UL reporting amount (reportQuantity-UL-r17) shown in FIGS. 3 and 4.
  • UL beam reporting settings may exist only if DL beam reporting is set. The UL beam reporting setting may be ignored if DL beam reporting is not set.
  • the relationship between the UL beam report setting and the DL beam report setting can be clarified.
  • CSI reporting priorities may be defined in the specification.
  • the priority setting of the CSI report may be defined as in the above equation (2), or another equation may be used.
  • Pri iCSI (y, k, c, s) 3 ⁇ N cells ⁇ M s ⁇ y + N cells ⁇ M s ⁇ k + M s ⁇ c + s (3)
  • the CSI report may or may not include the DL beam report.
  • the CSI report may or may not include the UL beam report.
  • the UE may transmit a CSI report including a UL beam report without including a DL beam report.
  • the CSI report may or may not include the UL beam report.
  • the UE may transmit a CSI report including a UL beam report without including a DL beam report.
  • the DL beam report / UL beam report setting can be appropriately set as the priority setting for the CSI report.
  • Aspect 4-1 describes an example in which the CSI report includes the UL beam report and does not include the DL beam report.
  • the CSI report may first include a field of UL beam index and then a field of values for UL beam transmit power / MPR.
  • the value related to the transmission power / MPR of the UL beam may be a quantized absolute value, or may be a difference value from the value related to the transmission power / MPR of the optimum UL beam.
  • FIG. 5 is a diagram showing an example of a CSI report including a UL beam report.
  • "CRI or SSBRI or SRI # 1", "CRI or SSBRI or SRI # 2", “CRI or SSBRI or SRI # 3", “CRI or SSBRI or SRI # 4" shown in FIG. 5 indicate the UL beam index. .. "POWER / MPR Related value # 1", “POWER / MPR Related value # 2", “POWER / MPR Related value # 3", “POWER / MPR Related value # 4" are UL beams corresponding to each UL beam index. It is a value related to the transmission power / MPR of.
  • the notation in FIG. 5 is an example, and other notations having the same meaning may be used.
  • Aspect 4-2 describes an example of the case where the CSI report includes both the DL beam report and the UL beam report (joint beam report).
  • the UE first maps (places) the DL beam index and L1-RSRP / L1-SINR of the DL beam to the CSI report, and then (in later order within the CSI report) the UL beam index and the transmission power of the UL beam. Map values for / MPR.
  • the UE first maps the UL beam index and the values for the UL beam transmit power / MPR to the CSI report, and then maps the DL beam index and the DL beam L1-RSRP / L1-SINR.
  • the UE first maps the DL beam index and UL beam index to the CSI report, and then the L1-RSRP / L1-SINR and UL beam transmit power / MPR of the DL beam corresponding to the DL beam index and UL beam index. Map the value for. In this case, the UE maps the DL beam index before the UL beam index and the L1-RSRP / L1-SINR of the DL beam before the value for the UL beam transmit power / MPR.
  • the UE first maps the UL beam index and DL beam index to the CSI report, and then maps the values for the DL beam report and the UL beam transmit power / MPR. In this case, the UE maps the UL beam index before the DL beam index and the value for the transmission power / MPR of the UL beam before the L1-RSRP / L1-SINR of the DL beam.
  • the fields related to DL beam report and UL beam report can be appropriately mapped to the CSI report.
  • the UE transmits and transmits UE capability (UE capability information) indicating whether it supports measurement / reporting of the beam index for UL beam selection and measurement / reporting of a value related to the transmission power / MPR of the UE beam.
  • UE capability information indicating whether it supports measurement / reporting of the beam index for UL beam selection and measurement / reporting of a value related to the transmission power / MPR of the UE beam.
  • Settings corresponding to the UE capability may be received from the network.
  • the UE capability may include the number of UL beam indexes.
  • the beam index is, for example, SSB / CSI-RS / SRS.
  • the UE may send the joint index of the DL beam and the UL beam, information about it, and the UE capability indicating whether to support reporting to the network.
  • the UE may perform joint reporting of the DL beam index and the UL beam index and the information related thereto.
  • the UE capability may include UL beam index / DL beam index / number of all (DL and UL) beam indexes.
  • the UE may apply the processing of the embodiment / aspect only when the processing of the above embodiment / aspect is reported as the UE capability.
  • the UE may apply the processing of the embodiment / embodiment only when the processing of the embodiment / embodiment is set / activated / instructed by the upper layer signaling.
  • the UE can receive and report the report settings according to the UE capability for the DL beam report / UL beam report.
  • 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. 6 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 (Multi-RAT Dual Connectivity (MR-DC)) between a plurality of Radio Access Technologies (RATs).
  • MR-DC is a dual connectivity (E-UTRA-NR Dual Connectivity (EN-DC)) between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR, and a dual connectivity (NR-E) between NR and LTE.
  • E-UTRA-NR Dual Connectivity Evolved Universal Terrestrial Radio Access (E-UTRA)
  • NR-E dual connectivity
  • NE-DC -UTRA Dual Connectivity
  • 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 base station (gNB) of NR is MN
  • the base station (eNB) of LTE (E-UTRA) 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 macrocell C1 having a relatively wide coverage, and a base station 12 (12a-12c) that is arranged in the macrocell C1 and forms a small cell C2 that is narrower than the macrocell 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 a 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 macrocell 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 FR 2 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 higher-level 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.
  • a downlink shared channel Physical Downlink Shared Channel (PDSCH)
  • a broadcast channel Physical Broadcast Channel (PBCH)
  • a downlink control channel Physical Downlink Control
  • PDSCH Physical Downlink Control
  • 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, or the like, and the DCI that schedules PUSCH may be called UL grant, UL DCI, or the like.
  • the PDSCH may be read as DL data, and 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 for PDCCH detection.
  • CORESET corresponds to a resource for searching 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 for example.
  • Uplink Control Information (UCI) including at least one of SR) may be transmitted.
  • the PRACH may transmit a random access preamble to establish a connection with the cell.
  • downlinks, uplinks, etc. may be expressed without “links”. Further, it may be expressed without adding "Physical" to 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. 7 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 block of the characteristic portion in the present embodiment is 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, status 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 transmitter / receiver 120 includes a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter / receiver circuit, and the like, which are described based on the common recognition in the technical field 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 the 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. Processing (if necessary), inverse Fast Fourier Transform (IFFT) processing, precoding, transmission processing such as digital-analog transformation may be performed, and the baseband signal may be output.
  • channel coding may include error correction coding
  • modulation modulation
  • mapping mapping, filtering
  • DFT discrete Fourier Transform
  • IFFT inverse Fast Fourier Transform
  • precoding coding
  • transmission processing such as digital-analog transformation
  • 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) for 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 measurement 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 / receives signals (backhaul signaling) to / from a device included in the core network 30, another base station 10, etc., and user data (user plane data) for the user terminal 20 and a control plane. Data or the like may be acquired or transmitted.
  • the transmission unit and the reception 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 path interface 140.
  • the transmission / reception unit 120 may transmit settings related to uplink (UL) beam reporting by higher layer signaling.
  • the control unit 110 may control the reception of the UL beam report based on the settings related to the uplink (UL) beam report.
  • FIG. 8 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.
  • the functional block of the feature portion in the present embodiment is mainly shown, 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, 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 transmitter / receiver 220 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmitter / receiver 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 the 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, and the baseband signal may be output.
  • Whether or not to apply the DFT process may be based on the transform precoding setting.
  • the transmission / reception unit 220 transmits the channel using the DFT-s-OFDM waveform.
  • 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. on the baseband signal to the radio frequency band, 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 transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmission / reception unit 220 and the transmission / reception antenna 230.
  • the transmission / reception unit 220 may receive the setting related to the uplink (UL) beam report by the upper layer signaling.
  • the UL beam reporting settings may include resource settings for the reference signal used as the UL beam index.
  • the transmission / reception unit 220 may receive the first information element including the setting regarding the UL beam report and the second information element including the setting regarding the DL beam report.
  • the transmission / reception unit 220 may receive one information element including both the UL beam reporting setting and the DL beam reporting setting.
  • the control unit 210 may control the UL beam report based on the settings related to the uplink (UL) beam report.
  • each functional block is realized using one physically or logically coupled device, or two or more physically or logically separated devices can be directly or indirectly (eg, for example). , 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 (configuration unit) for functioning transmission may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the realization method 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. 9 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 in 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, a register, 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, and is, for example, a flexible disk, a floppy disk (registered trademark) disk, an optical magnetic disk (for example, a compact disc (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, etc.). At least one of Blu-ray® discs), removable discs, optical disc drives, smart cards, flash memory devices (eg cards, sticks, key drives), magnetic stripes, databases, servers and other suitable storage media. May be configured by.
  • 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 has, 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)). May be configured to include.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • 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 by 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 accepts 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 terms described in the present disclosure and the terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings.
  • channels, symbols and signals may be read interchangeably.
  • the signal may be a message.
  • the reference signal may be abbreviated as RS, and may be referred to as a pilot, a pilot signal, or the like depending on the applied standard.
  • the component carrier CC may be referred to as a cell, a frequency carrier, a carrier frequency, or the like.
  • the wireless frame may be configured by one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) constituting the radio 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 does not depend on 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 Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.). 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 composed of one or more symbols in the time domain. Further, the mini slot may be referred to as a sub slot. The minislot may consist of a smaller number of symbols than the slot.
  • the PDSCH (or PUSCH) transmitted in time units larger than the minislot may be referred to as 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, minislot and symbol all represent the time unit when transmitting a signal.
  • the radio frame, subframe, slot, minislot and symbol may use 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. 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.
  • 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.
  • TTI shorter than normal TTI may be referred to as shortened TTI, short TTI, partial TTI (partial or fractional TTI), shortened subframe, short subframe, minislot, subslot, slot and the like.
  • the long TTI (eg, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms
  • the short TTI eg, shortened TTI, etc.
  • TTI having the above TTI length may be read as 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 radio frame the number of slots per subframe or radioframe, 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 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.
  • the radio resource may be indicated by a given index.
  • the information, signals, etc. described in this disclosure may be represented using any of a variety of different techniques.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description are voltages, currents, 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.
  • 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 embodiment / 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 referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an 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 whether referred to as software, firmware, middleware, microcode, hardware description language, or other names, is an instruction, instruction set, code, code segment, program code, program, subprogram, software module.
  • Applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, features, etc. should be broadly interpreted.
  • 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, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.).
  • wired technology coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.
  • wireless technology infrared, microwave, etc.
  • the terms “system” and “network” used in this disclosure may be used interchangeably.
  • the “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
  • wireless base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission point (Transmission Point (TP))
  • Reception point 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 (eg, 3) 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 Remote Radio Head
  • the term "cell” or “sector” refers to a portion or all of the coverage area of at least one of a base station and a base station subsystem that provides 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, a 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.
  • the communication between the base station and the user terminal is replaced with the 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 upstream channel, the downstream channel, and the like may be read as a side channel.
  • 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 a base station, 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 may be switched and used according to the execution. Further, 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. For example, 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
  • SUPER 3G IMT-Advanced
  • 4G 4th generation mobile communication system
  • 5G 5th generation mobile communication system
  • 6G 6th generation mobile communication system
  • xG xG (xG (x is, for example, an integer or a fraction)
  • Future Radio Access FAA
  • RAT New -Radio Access Technology
  • NR New Radio
  • NX New radio access
  • FX Future generation radio access
  • GSM registered trademark
  • CDMA2000 Code Division Multiple Access
  • UMB Ultra Mobile Broadband
  • UMB Ultra Mobile Broadband
  • LTE 802.11 Wi-Fi®
  • LTE 802.16 WiMAX®
  • LTE 802.20 Ultra-WideBand (UWB), Bluetooth®, and other suitable radios.
  • UMB Ultra Mobile Broadband
  • references to elements using designations such as “first” and “second” 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 used in this disclosure 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) includes receiving (for example, receiving information), transmitting (for example, transmitting information), input (input), output (output), and access (for example). It may be regarded as “determining” such as accessing) (for example, accessing data in memory).
  • judgment (decision) is regarded as “judgment (decision)” of solving, selecting, selecting, 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 connections or connections between two or more elements. Means, and can include the presence of one or more intermediate elements between two elements that are “connected” or “bonded” 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 region, 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”.

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

Abstract

Ce terminal est caractérisé par le fait qu'il possède une unité de réception qui, au moyen d'une signalisation de niveau supérieur, reçoit un réglage relatif au rapport de faisceau de liaison montante (UL), et une unité de commande qui commande le rapport de faisceau UL qui est basé sur le réglage susmentionné. Par ce moyen, il est possible d'effectuer de manière appropriée un rapport de faisceau UL.
PCT/JP2020/030105 2020-08-06 2020-08-06 Terminal, procédé de communication sans fil, et station de base WO2022029948A1 (fr)

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Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
APPLE: "Considerations on separate DL and UL beam reporting", 3GPP DRAFT; R1-1812923 CONSIDERATIONS ON SEPARATE DL AND UL BEAM REPORTING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 3 November 2018 (2018-11-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051479172 *
FRAUNHOFER IIS, FRAUNHOFER HHI: "NR beam management supporting multi-gNB measurements for positioning", 3GPP DRAFT; R1-1813583, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 2 November 2018 (2018-11-02), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , pages 1 - 8, XP051479922 *

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