WO2020121528A1 - Équipement utilisateur et procédé de communication sans fil - Google Patents

Équipement utilisateur et procédé de communication sans fil Download PDF

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Publication number
WO2020121528A1
WO2020121528A1 PCT/JP2018/046168 JP2018046168W WO2020121528A1 WO 2020121528 A1 WO2020121528 A1 WO 2020121528A1 JP 2018046168 W JP2018046168 W JP 2018046168W WO 2020121528 A1 WO2020121528 A1 WO 2020121528A1
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Prior art keywords
srs
srs resource
transmission
panel
information
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PCT/JP2018/046168
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English (en)
Japanese (ja)
Inventor
真哉 岡村
浩樹 原田
祐輝 松村
Original Assignee
株式会社Ｎｔｔドコモ
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.)
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Application filed by 株式会社Ｎｔｔドコモ filed Critical 株式会社Ｎｔｔドコモ
Priority to CN201880100236.9A priority Critical patent/CN113196865A/zh
Priority to PCT/JP2018/046168 priority patent/WO2020121528A1/fr
Publication of WO2020121528A1 publication Critical patent/WO2020121528A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present disclosure relates to a user terminal and a wireless communication method in a next-generation mobile communication system.
  • 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) is also under consideration.
  • 5G 5th generation mobile communication system
  • 5G+(plus) 5th generation mobile communication system
  • NR New Radio
  • 3GPP Rel.15 or later 3th generation mobile communication system
  • Uplink signals include, for example, a random access channel (Physical Random Access Channel (PRACH)), an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), an uplink control channel (Physical Uplink Control Channel (PUCCH)), and a sounding reference signal (Sounding). It may include at least one of Reference Signal (SRS), PUSCH or PUCCH demodulation reference signal (Demodulation Reference Signal (DM-RS)).
  • PRACH Physical Random Access Channel
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • Sounding Sounding reference signal
  • SRS Reference Signal
  • PUSCH Physical Uplink Control Channel
  • DM-RS Demodulation Reference Signal
  • E-UTRA Evolved Universal Terrestrial Radio Access
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • the UE determines the UL transmission beam (or spatial domain filter) based on the information notified from the base station. Also, it is considered that the UE performs UL transmission using a plurality of panels (antenna panel, beam).
  • the UE uses multiple panels in UL transmission. If a plurality of panels cannot be properly used for UL transmission, power consumption may increase, beam gain may decrease, and system performance may deteriorate.
  • an object of the present disclosure is to provide a user terminal and a wireless communication method that appropriately use a plurality of panels.
  • a user terminal includes a receiving unit that receives instruction information regarding at least one of a sounding reference signal (SRS) resource and an SRS resource set, and the SRS resource and the SRS resource based on the instruction information.
  • a control unit that determines a panel corresponding to at least one of the sets.
  • SRS sounding reference signal
  • a plurality of panels can be appropriately used.
  • FIG. 1 is a diagram showing an example of a beam when there is beam correspondence.
  • 2A and 2B are diagrams illustrating an example of the association between the UE panel and the SRS resource according to the first embodiment.
  • 3A to 3C are diagrams illustrating an example of UE capability information indicating association between a UE panel and an SRS resource ID range.
  • FIG. 4 is a diagram showing an example of a UE transmission beam determination method according to Embodiment 2-a.
  • FIG. 5 is a diagram illustrating an example of association of a UE panel and an SRS resource according to the second embodiment.
  • 6A and 6B are diagrams showing examples of values of the SRI field and the SRS resource set instruction field.
  • FIG. 7 is a diagram illustrating an example of a UE transmission beam determination method according to Embodiment 3-a.
  • FIG. 8 is a diagram illustrating an example of the association between the UE panel and the SRS resource according to the third embodiment.
  • FIG. 9 is a diagram illustrating an example of the association between the UE panel and the SRS resource according to the fourth embodiment.
  • 10A and 10B are diagrams illustrating an example of SRS resource selection.
  • FIG. 11 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.
  • FIG. 12 is a diagram illustrating an example of the configuration of the base station according to the embodiment.
  • FIG. 13 is a diagram illustrating an example of the configuration of the user terminal according to the embodiment.
  • FIG. 14 is a diagram illustrating an example of a hardware configuration of the base station and the user terminal according to the embodiment.
  • NR a measurement reference signal
  • SRS Sounding Reference Signal
  • the NR SRS is used not only for UL CSI measurement also used in the existing LTE (LTE Rel. 8-14), but also for DL CSI measurement, beam management and the like.
  • the UE may be configured with one or more SRS resources.
  • the SRS resource may be specified by the SRS resource instruction (SRS Resource Indicator: SRI).
  • Each SRS resource may have one or more SRS ports (may correspond to one or more SRS ports).
  • the number of ports for each SRS may be 1, 2, 4, or the like.
  • SRS resource set may be configured with one or more SRS resource sets (SRS resource set).
  • One SRS resource set may be associated with a predetermined number of SRS resources.
  • the UE may commonly use upper layer parameters for SRS resources included in one SRS resource set.
  • a resource set may be replaced with a resource group, simply a group, or the like.
  • At least one of the information on the SRS resource set and the SRS resource may be set in the UE by using upper layer signaling, physical layer signaling, or a combination thereof.
  • the upper layer signaling may be, for example, any one of RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information, or a combination thereof.
  • MAC CE Control Element
  • MAC PDU Protocol Data Unit
  • the broadcast information includes, for example, a master information block (MIB), a system information block (SIB), a minimum system information (Remaining Minimum System Information: RMSI), and other system information (Other System Information). : OSI) or the like.
  • MIB master information block
  • SIB system information block
  • RMSI Remaining Minimum System Information
  • OSI OSI
  • the physical layer signaling may be, for example, downlink control information (DCI).
  • DCI downlink control information
  • the SRS setting information (eg, “SRS-Config” of RRC parameter (information element)) may include SRS resource set setting information, SRS resource setting information, and the like.
  • SRS resource set setting information (for example, "SRS-ResourceSet” of RRC parameter) is SRS resource set ID (Identifier) (SRS-ResourceSetId), list of SRS resource ID (SRS-ResourceId) used in the resource set, SRS Information on the resource type and the usage of the SRS may be included.
  • SRS resource set ID Identifier
  • SRS-ResourceSetId list of SRS resource ID (SRS-ResourceId) used in the resource set
  • SRS Information on the resource type and the usage of the SRS may be included.
  • the SRS resource types are periodic SRS (Periodic SRS: P-SRS), semi-persistent SRS (Semi-Persistent SRS: SP-SRS), aperiodic CSI (Aperiodic SRS: A-SRS, AP-SPS). ) May be shown.
  • the UE may periodically transmit (or periodically after activation) the P-SRS and SP-SRS, and may transmit the A-SRS based on the DCI SRS request.
  • SRS RRC parameter “usage”, L1 (Layer-1) parameter “SRS-SetUse”
  • L1 (Layer-1) parameter “SRS-SetUse” is, for example, beam management (beamManagement), codebook (codebook: CB), non-codebook (noncodebook). :NCB), antenna switching, etc.
  • the SRS for codebook or non-codebook applications may be used to determine the precoder for codebook-based or non-codebook-based PUSCH transmission based on SRI.
  • the beam management SRS may be assumed that only one SRS resource for each SRS resource set can be transmitted at a given time instant. When a plurality of SRS resources belong to different SRS resource sets, these SRS resources may be transmitted at the same time.
  • the UE determines a precoder for PUSCH transmission based on the SRI, the transmission rank indicator (TRI) and the transmission precoding matrix indicator (TPMI). You may.
  • the UE may determine a precoder for PUSCH transmission based on the SRI for non-codebook based transmission.
  • SRS resource setting information (for example, "SRS-Resource” of RRC parameter) is SRS resource ID (SRS-ResourceId), SRS port number, SRS port number, transmission Comb, SRS resource mapping (for example, time and/or frequency resource). Position, resource offset, resource period, repetition number, SRS symbol number, SRS bandwidth, etc.), hopping related information, SRS resource type, sequence ID, spatial related information, and the like.
  • the UE may transmit SRS in adjacent symbols for the number of SRS symbols among the last 6 symbols in one slot.
  • the number of SRS symbols may be 1, 2, 4 or the like.
  • the UE may switch the BWP (Bandwidth Part) that transmits the SRS for each slot, or may switch the antenna. Also, the UE may apply at least one of intra-slot hopping and inter-slot hopping to SRS transmission.
  • BWP Bandwidth Part
  • an IFDMA Interleaved Frequency Division
  • Comb2 an SRS is arranged for each 2RE (Resource Element)
  • Comb4 an SRS is arranged for every 4RE
  • a cyclic shift Cyclic Shift: CS
  • Multiple Access may be applied.
  • the spatial relation information of the SRS (“spatialRelationInfo” of the RRC parameter) may indicate the spatial relation information between the predetermined reference signal (reference reference signal) and the SRS.
  • the predetermined reference signal is a synchronization signal/broadcast channel (Synchronization Signal/Physical Broadcast Channel: SS/PBCH) block, channel state information reference signal (Channel State Information Reference Signal: CSI-RS), and SRS (for example, another SRS). May be at least one of the above.
  • the SS/PBCH block may be referred to as a synchronization signal block (SSB).
  • the SRS spatial-related information may include at least one of an SSB index, a CSI-RS resource ID, and an SRS resource ID as an index of the predetermined reference signal.
  • the SSB index, the SSB resource ID, and the SSB resource indicator (SSB Resource Indicator: SSBRI) may be replaced with each other.
  • the CSI-RS index, CSI-RS resource ID, and CSI-RS resource indicator (CSI-RS Resource Indicator: CRI) may be replaced with each other.
  • the SRS index, the SRS resource ID, and the SRI may be read as each other.
  • the SRS spatial related information may include a serving cell index, a BWP index (BWP ID), etc. corresponding to the predetermined reference signal.
  • BWP ID BWP index
  • the UE uses the same spatial domain filter as the spatial domain filter for receiving the SSB or CSI-RS when the spatial related information regarding the SSB or CSI-RS and the SRS is set for a certain SRS resource.
  • the SRS resource may be transmitted. That is, in this case, the UE may assume that the SSB or CSI-RS UE receive beam and the SRS UE transmit beam are the same.
  • target SRS spatial related information about another SRS (reference SRS) and the SRS (target SRS), the spatial domain filter for transmission of the reference SRS.
  • the target SRS resource may be transmitted using the same spatial domain filter as. That is, in this case, the UE may assume that the UE transmission beam of the reference SRS and the UE transmission beam of the target SRS are the same.
  • the spatial domain filter for transmission of the base station, the downlink spatial domain transmission filter, and the transmission beam of the base station may be replaced with each other.
  • the spatial domain filter for reception of the base station, the uplink spatial domain receive filter, and the reception beam of the base station may be read as each other.
  • the spatial domain filter for transmission of the UE, the uplink spatial domain transmission filter, and the transmission beam of the UE may be read as each other.
  • the spatial domain filter for reception of the UE, the downlink spatial domain receive filter, and the reception beam of the UE may be read as each other.
  • the UE applies the spatial domain filter to UL transmission (for example, SRS transmission) based on the reference DL reference signal (CSI-RS, SSB) or UL reference signal (SRS) set by the spatial related information. Can be determined.
  • CSI-RS reference DL reference signal
  • SSB reference DL reference signal
  • SRS UL reference signal
  • the beam applied to transmission and the beam applied to reception match, it may be called that it has (supports) beam correspondence.
  • the beam applied to the transmission does not match the beam applied to the reception, it may be referred to as having no beam correspondence (not supported).
  • the matching of the beam applied to transmission and the beam applied to reception is not limited to complete matching, but also includes matching within a predetermined allowable range.
  • the beam correspondence is the transmit/receive beam correspondence (Tx/Rx beam correspondance), beam reciprocity (beam reciprocity), beam calibration (beam calibration), calibrated/uncalibrated (Calibrated/Non-calibrated), reciprocity. It may be called calibrated/non-calibrated, relevance, coincidence, or simply correspondence.
  • the base station can determine a beam suitable for transmission/reception with the UE by grasping the DL signal/channel (or beam) having high reception characteristics (for example, reception power) in the UE.
  • the case of having the beam correspondence may be read as the case of the UE reporting that the UE supports the beam correspondence.
  • the base station transmits a plurality of synchronization signal blocks (SSB) or CSI-RS using different DL resources (or DL beams) in the time direction.
  • the UE selects a predetermined SSB or CSI-RS based on reception characteristics (for example, received power) and the like, and selects a UL resource (or UL occasion, UL transmission beam) associated with the predetermined SSB or CSI-RS.
  • the UL signal or the UL channel may be used for transmission.
  • the base station performs reception processing on UL resources associated with each SSB or CSI-RS, and determines a predetermined beam suitable for DL and UL based on the UL resources used for transmission from the UE. .. As described above, when the beam correspondence is provided, the beam to be applied to the UL may be determined based on the beam management of the DL.
  • the beam applied to the DL signal/channel transmission at the base station and the beam applied to the UL signal/channel reception transmitted from the UE do not match (or link).
  • the base station can determine a beam suitable for DL transmission by grasping a DL signal/channel having high reception characteristics (for example, reception power) at the UE by DL beam management.
  • the base station can determine the beam suitable for receiving the UL by grasping the UL signal/channel (or the beam) having high reception characteristics among the UL signals/channels transmitted from the UE by the UL beam management. ..
  • the base station can determine a beam suitable for UL by setting a plurality of SRS resources (or beams) in the UE and measuring the reception quality.
  • UEs or base stations that have beam correspondence may assume that the transmitted and received beams match (or almost match). Note that the beam correspondence may be referred to as beam reciprocity, beam calibration, or simply correspondence.
  • Beam instruction for PUCCH may be set by higher layer signaling (PUCCH-Spatial-relation-info of RRC PUCCH space-related information). For example, when the PUCCH space related information includes one space related information (SpatialRelationInfo) parameter, the UE may apply the set parameter to the PUCCH. When the PUCCH space related information includes more than one space related information parameter, the parameter to be applied to the PUCCH may be determined based on the MAC CE.
  • PUCCH-Spatial-relation-info of RRC PUCCH space-related information For example, when the PUCCH space related information includes one space related information (SpatialRelationInfo) parameter, the UE may apply the set parameter to the PUCCH. When the PUCCH space related information includes more than one space related information parameter, the parameter to be applied to the PUCCH may be determined based on the MAC CE.
  • the beam instruction for PUSCH may be determined based on the SRI (SRS Resource Indicator) field included in DCI (eg, DCI for PUSCH scheduling, DCI format 0_1).
  • SRI SRS Resource Indicator
  • the UE may set an SRS resource set (SRS resource set ID, SRS resource ID list) including at least one SRS resource (SRS resource set ID) by higher layer signaling.
  • the SRI may indicate the position (index) of the SRS resource ID in the set SRS resource set (SRS resource ID list).
  • the UE may recognize the SRS resource based on the SRI.
  • one or two SRS resources can be set by upper layer signaling (SRS-Config).
  • SRS-Config One SRS resource of SRS resources set by DCI (SRI) can be designated.
  • SRS-Config 1 to 4 SRS resources can be set by upper layer signaling (SRS-Config).
  • SRS-Config One to four SRS resources among the SRS resources set by DCI (SRI) can be designated.
  • the base station when it notifies the UE of the spatial domain transmission filter applied to UL transmission (for example, SRS transmission) using the spatial related information, it notifies the UE of the reference reference signal. ..
  • the UE performs UL transmission by applying the same spatial domain filter as the spatial domain filter applied to the reference reference signal.
  • the reference reference signal may be a DL reference signal (eg reference SSB or reference CSI-RS) or a UL reference signal (eg reference SRS).
  • a UE having multiple UE panels may control the power of each UE panel.
  • the NW cannot grasp the correspondence (association) between the UE panel and the SRS resource ID and the panel state (ON/OFF) of the UE, the NW sets the SRS resource ID (transmission beam) regardless of the UE panel. Since there is a possibility that a transmission beam may be set for any UE panel by RRC signaling, there is a case where the UE cannot properly power off (turn off) the panel.
  • the NW does not know the association between the SRS resource and the UE panel, there is beam correspondence (when the reference signal for the UL transmission beam is a DL reference signal (eg, SSB, CSI-RS)) and the beam correspondence is Each UE operation with and without (when the reference signal for the UL transmit beam is a UL reference signal (eg, SRS)) is considered.
  • a DL reference signal eg, SSB, CSI-RS
  • the UE uses the same beam as the receive beam for UL transmission.
  • the UE reports to the NW the reference signal index (CSI-RS resource index, SSB index) corresponding to the beam of some UE panels to the beam not reported in the beam report.
  • the power of the corresponding panel can be turned off.
  • the gNB performs transmit beam sweeping using the beams B21 to B24, and the UE performs receive beam sweeping using the beams b1 to b4.
  • the beam B22 of 1 is determined as the DL transmission beam
  • the beam b2 of the UE is determined as the DL reception beam.
  • the gNB also uses the determined beam B22 as a UL receive beam and the UE also uses the determined beam b2 as a UL transmit beam.
  • the UE performs UL transmission beam sweeping using the transmission beam associated with the SRS resource ID (SRS-ResourceId), and the NW measures the UL transmission beam and selects the beam.
  • the NW cannot set the SRS resource (UL transmission beam) for each UE panel without knowing the association between the SRS resource ID and the UE panel.
  • the UE it is not preferable for the UE to turn off the power of the UE panel when there is no beam correspondence and the NW does not know the association between the SRS resource and the UE panel.
  • the base station sets the SRS resource of the UE panel, the base station needs to perform processing such as transmitting an instruction to turn on the power of the UE panel, Problems such as increased load and increased delay occur.
  • the UE may power off the remaining UE panels by performing transmit beam sweeping using some UE panels, but it may not be possible to use an appropriate beam and the gain may be reduced. is there.
  • the power consumption may increase, the beam gain may decrease, and the system performance may deteriorate.
  • the inventors of the present invention have come up with a method of appropriately using a plurality of UE panels.
  • the UE panel may be read as a panel, an antenna panel, an antenna array, an antenna matrix, an antenna port group, an antenna element group, and the like.
  • the ID may be read as an index, a number, or the like.
  • the following describes a case where there is no beam correspondence (SRS is set as a reference signal corresponding to the beam) and the UE performs UL transmission using a multi-panel.
  • SRS is set as a reference signal corresponding to the beam
  • the UE reports information indicating the association between the SRS resource (for example, SRS resource ID) and the UE panel (for example, UE panel ID) to the NW.
  • SRS resource for example, SRS resource ID
  • UE panel for example, UE panel ID
  • the UE may use at least one of the following Embodiments 1-a to 1-c.
  • the UE reports information indicating the association between the SRS resource and the UE panel as UE capability information.
  • the information indicating the association between the SRS resource and the UE panel may be information on the range of the SRS resource ID corresponding to each of the plurality of UE panels.
  • FIG. 2A is a diagram showing an example of a multi-panel in the UE.
  • the UE has panels #0-#3.
  • FIG. 2B is a diagram showing an example of the relationship between the SRS resource ID and the UE panel ID.
  • SRS resources #N 0F_SRS to #N 0L_SRS are associated with panel #0.
  • SRS resources #N 1F_SRS to #N 1L_SRS are associated with panel #1.
  • SRS resources #N 2F_SRS to #N 2L_SRS are associated with panel #2.
  • SRS resources #N 3F_SRS to #N 3L_SRS are associated with panel #3.
  • the number of SRS resources (transmission beam candidates) associated with each UE panel may be different.
  • At least one of the maximum number of SRS resources, the maximum number of SRS resource sets, and the maximum number of SRS resources in the SRS resource set is UE capability information (eg, first capability information, Multiple-Input Multiple-Output (MIMO) parameter , MIMO-ParametersPerBand) may be reported by the UE or may be specified in the specification.
  • UE capability information eg, first capability information, Multiple-Input Multiple-Output (MIMO) parameter , MIMO-ParametersPerBand
  • the NW may set the SRS resource for the UE by higher layer signaling (for example, SRS-Config) based on at least one of the UE capability information and the specification.
  • the UE configured with the SRS resource may report the information indicating the association between the SRS resource and the UE panel as the UE capability information (for example, the second capability information).
  • a continuous SRS resource ID may be associated with each UE panel.
  • the UE may report one of the following information 1 to 3 as UE capability information.
  • the UE may report, for each UE panel ID, the range of SRS resource IDs associated with the UE panel as UE capability information.
  • the range of the SRS resource ID may be represented by the minimum SRS resource ID (lower limit) of the range and the maximum SRS resource ID (upper limit) of the range.
  • the range of the SRS resource ID may be represented by the minimum SRS resource ID in the range and the number of SRS resources in the range.
  • the range of SRS resource IDs associated with one UE panel ID and the range of SRS resource IDs associated with another UE panel ID may not be consecutive. There may be UE panels that do not allocate SRS resources.
  • the UE is a UE panel for each UE panel ID.
  • the upper limit or the lower limit of the range of the SRS resource ID associated with the UE may be reported as the UE capability information.
  • the UE may report, for each UE panel ID, the minimum SRS resource ID (lower limit) in the range of SRS resource IDs associated with the UE panel, as UE capability information.
  • the UE may report, for each UE panel ID, the maximum SRS resource ID (upper limit) in the range of SRS resource IDs associated with the UE panel, as UE capability information.
  • the UE may report the number of UE panels as UE capability information in addition to the information 1 or the information 2 described above. There may be UE panels that are not assigned SRS resources (not associated with SRS resources). For example, in the example of FIG. 3C, when the UE panel #3 is not used, the UE capability information does not include the entry having the UE panel ID of 3, and thus the NW does not allocate the SRS resource to the UE panel #3. May be recognized.
  • the UE reports that it supports association between the SRS resource (SRS resource ID) and the UE panel (UE panel ID) as UE capability information.
  • the NW which has received that the UE supports the report of the association of the SRS resource and the UE panel (a plurality of UE panels), issues the trigger (request) for reporting the information indicating the association of the SRS resource and the UE panel. It may be transmitted to the UE.
  • the UE that has received the trigger may report the information indicating the association of the SRS resource and the UE panel in the same manner as in Embodiment 1-a.
  • the UE supports at least one of a maximum number of SRS resources, a maximum number of SRS resource sets, a maximum number of SRS resources in the SRS resource set, and a report of the association of the SRS resource and the UE panel, UE capability information including may be reported.
  • the trigger for reporting the information indicating the association between the SRS resource and the UE panel may be upper layer signaling (for example, SRS-Config) indicating the setting of the SRS resource, or may be included in the upper layer signaling.
  • the UE does not have a plurality of UE panels (multi-panel) (when the UE has only one UE panel or when the UE does not have a UE panel), the UE has a multi-panel.
  • Information indicating that the UE does not have may be reported using UE capability information or the like.
  • the UE After reporting the information indicating the association of the SRS resource and the UE panel, the UE uses an upper layer signaling to provide an SRS resource set including a plurality of SRS resources for use in codebook-based UL transmission or non-codebook-based UL transmission. It may be set.
  • one DCI containing multiple SRIs may be received.
  • the plurality of SRS resources indicated by the DCI may respectively correspond to the plurality of UE panels.
  • the UE can perform UL transmission using a plurality of transmission beams respectively corresponding to a plurality of UE panels, and the gain by the beam can be increased.
  • the SRS resource set is associated with the UE panel.
  • the UE may recognize the UE panel ID based on the SRS resource set ID. For example, the UE may replace the SRS resource set ID (for example, SRS-ResourceSetId) with the UE panel ID.
  • the UE may use at least one of the following Embodiments 2-a and 2-b.
  • the UE may be instructed by the DCI of the SRS resource set ID and the corresponding SRS resource ID in the SRS resource set.
  • the UE reports UE capability information (eg, MIMO parameters, MIMO-ParametersPerBand) after initial access.
  • UE capability information eg, MIMO parameters, MIMO-ParametersPerBand
  • BeamCorrespondence the presence/absence of beam correspondence support
  • the NW may grasp the number of UE panels based on the maximum number of SRS resource sets. For example, the NW may recognize the maximum number of SRS resource sets as the number of UE panels.
  • the UE sets SRS parameters (for example, SRS-Config) by higher layer signaling.
  • the SRS parameter may include at least one SRS resource set ID.
  • the SRS resource set ID may be a UE panel ID.
  • Each SRS resource set may include at least one SRS resource ID (SRS resource ID list).
  • the UE may trigger SP-SRS by the MAC CE in S30.
  • SP Semi-Persisitent
  • AP Aperiodic
  • the UE may be triggered by the DCI for AP-SRS in S30.
  • the UE performs SRS-based transmit beam sweeping based on the SRS parameter.
  • the UE transmits a transmission beam corresponding to each SRS resource in each SRS resource set set by the SRS parameter.
  • the UE is instructed by the DCI to perform an SRS resource set instruction (for example, SRS resource set ID) and an SRS resource instruction (for example, SRI).
  • the DCI may include a plurality of SRS resource set IDs, or may include an SRS resource ID for each SRS resource set ID.
  • the UE determines the SRS resource (SRS resource ID) corresponding to the SRI from the SRS resource set designated by the SRS resource set instruction (SRS resource ID list corresponding to the designated SRS resource set ID) Good.
  • the UE transmits PUCCH or PUSCH using the transmission beam instructed by the SRS resource instruction.
  • FIG. 5 is a diagram showing an example of the association between the SRS resource set and the UE panel.
  • SRS resource sets #0, #1, #2, and #3 correspond to panels #0, #1, #2, and #3, respectively.
  • the SRS resource set #0 includes SRS resources #0 to #15.
  • the SRS resource set #1 includes SRS resources #0 to #3.
  • the SRS resource set #2 includes SRS resources #0 to #7.
  • the SRS resource set #3 includes SRS resources #0 to #31.
  • the number of SRS resources (transmission beam candidates) associated with each UE panel may be different.
  • DCI (for example, DCI for scheduling UL transmission, DCI format 0_1) may include an SRI field and a bit field (SRS resource set instruction field) indicating the SRS resource set ID.
  • SRS resource set instruction field indicating the SRS resource set ID.
  • FIG. 6A shows an example of the value of the SRI field for codebook-based PUSCH transmission.
  • the value of the 1-bit SRI field is the SRS resource set corresponding to the SRS resource set ID indicated by the SRS resource set instruction field (SRS resource ID
  • the position (index) of the SRS resource ID in the (list) may be indicated.
  • FIG. 6B is a diagram showing an example of values of the SRS resource set instruction field.
  • the 2-bit SRS resource set indication field may indicate the SRS resource set ID (UE panel ID).
  • the UE may configure up to one SRS resource set ID by higher layer signaling if the usage (usage, SRS-SetUse) of the SRS resource set is set to codebook or non-codebook. ..
  • the SRS resource set IDs up to the maximum number may be set.
  • a new application for example, multi-codebook
  • codebook-based transmission in which SRS resource set IDs up to the maximum number of SRS resource sets can be set.
  • a new application for example, multi-nonCodebook
  • the information indicating that it has not been performed may be reported using UE capability information or the like.
  • the UE may receive one DCI that includes multiple combinations of SRS resource set indications (eg, SRS resource set ID) and SRS resource indications (eg, SRI).
  • SRS resource set indications eg, SRS resource set ID
  • SRS resource indications eg, SRI
  • the UE can perform UL transmission using a plurality of transmission beams respectively corresponding to a plurality of UE panels, and the gain by the beam can be increased.
  • the second embodiment described above it is possible to allocate (associate) SRS resources (UL transmission beams) up to the maximum number of SRS resources in the SRS resource set to one UE panel.
  • the total number of SRS resources configured over all UE panels may be equal to or less than the maximum number of SRS resource sets ⁇ the maximum number of SRS resources in the SRS resource set and the maximum number of SRS resources or less. Therefore, even if the number of UE panels is large, the number of SRS resources for each UE panel is not reduced.
  • it is not necessary to report the UE capability information twice for example, report the maximum number of SRS resources in the SRS resource set, and then report the information indicating the association between the SRS resource and the UE panel).
  • the UE and the NW associate the SRS resource ID with the UE panel ID by using the relational expression of the SRS resource ID with the UE panel ID.
  • the UE may recognize the UE panel ID from the SRS resource ID (may be implicitly indicated) using the relational expression.
  • the UE may use at least one of the following Embodiments 3-a to 3-c.
  • the UE may report information regarding the number of UE panels as UE capability information.
  • the UE reports UE capability information (eg, MIMO parameters, MIMO-ParametersPerBand) after initial access.
  • UE capability information eg, MIMO parameters, MIMO-ParametersPerBand
  • At least one of the presence/absence of beam correspondence support, the maximum number of SRS resources, the maximum number of SRS resource sets, the maximum number of SRS resources in the SRS resource set, and the number of UE panels may be included in this UE capability information. However, it may be defined by the specifications.
  • the UE sets SRS parameters (for example, SRS-Config) by higher layer signaling.
  • the SRS parameter may include one SRS resource set ID.
  • the SRS resource set may include a plurality of SRS resource IDs (SRS resource ID list).
  • the UE may be triggered by the MAC CE for SP-SRS in S30. If the AP-SRS is set by the SRS parameter, the UE may be triggered by the DCI for the AP-SRS in S30.
  • the UE performs SRS-based transmit beam sweeping based on the SRS parameter.
  • the UE transmits a transmission beam corresponding to each SRS resource in the SRS resource set set by the SRS parameter.
  • the UE is instructed to perform SRI by DCI.
  • the UE determines the SRS resource (SRS resource ID) corresponding to the SRI from the SRS resource set (SRS resource ID list) set by the SRS parameter.
  • the UE transmits PUCCH or PUSCH using the transmission beam corresponding to the instructed SRS resource.
  • the UE may determine the corresponding UE panel ID from the SRS resource ID using the following equation.
  • I p I SRS mod N p (Equation 1)
  • I p is the UE panel ID
  • I SRS is the SRS resource ID
  • N p is the number of UE panels.
  • the UE panel number may be reported by the UE capability information.
  • the number of SRS resources (transmit beam candidates) associated with each UE panel is equal.
  • FIG. 8 is a diagram illustrating an example of the association between the UE panel and the SRS resource.
  • One SRS resource set includes SRS resources #0 to #15.
  • the base station and the UE associate the SRS resource ID and the UE panel ID with Equation 1 above.
  • SRS resources #0, #4, #8, #12 are associated with panel #0.
  • SRS resources #1, #5, #9, #13 are associated with panel #1.
  • SRS resources #2, #6, #10, #14 are associated with panel #2.
  • SRS resources #3, #7, #11, #15 are associated with panel #3.
  • the NW and the UE may read the parameter in the UE capability information as the number of UE panels.
  • the UE and the NW may apply the read UE panel number to the above-mentioned relational expression.
  • the NW and UE may read the maximum number of SRS resource sets as the number of UE panels.
  • the UE may report the number of UE panels as the maximum number of SRS resource sets and the maximum number of SRS resource sets as UE capability information (eg, MIMO parameters, MIMO-ParametersPerBand).
  • the number of UE panels here may be the number of UE panels provided in the UE, or the number of UE panels used in the UE (for example, the number of UE panels that are powered on, the number of UE panels that operate normally). Etc.).
  • the maximum number of SRS resource sets may be maxNumberSRS-ResourceSet in uplinkBeamManagement in UE capability information MIMO-ParametersPerBand.
  • the maximum number of SRS resource sets is the number of UE panels and one SRS resource set is set to the usage (usage) of codebook-based transmission or non-codebook-based transmission, SRS that can be set to the usage of beam management
  • the number of resource sets may be limited to the UE panel number-1.
  • the information indicating that it has not been performed may be reported using UE capability information or the like.
  • the UE may receive one DCI that includes multiple SRS resource indications (eg, SRI).
  • SRS resource indications eg, SRI
  • the plurality of SRS resources indicated by the DCI may respectively correspond to the plurality of UE panels.
  • the UE can perform UL transmission using a plurality of transmission beams respectively corresponding to a plurality of UE panels, and the gain by the beam can be increased.
  • the NW recognizes the association between the SRS resource and the UE panel, so that the SRS resource (UL transmission beam) in some UE panels can be set.
  • the UE can turn off the power of the UE panel to which the SRS resource cannot be assigned, and reduce the power consumption.
  • the NW can grasp ON/OFF of the UE panel.
  • the NW can instruct an appropriate transmission beam for each UE panel.
  • FIG. 9 is a diagram showing an example of the association between the SRS resource and the UE panel.
  • the UE has panels #0-#3. Similar to the first embodiment, the UE is configured with SRS resources #0 to #31 in one SRS resource set. The SRS resources #0 to #7 are associated with the UE panel #0. SRS resources #8 to #15 are associated with the UE panel #1. SRS resources #16 to #23 are associated with the UE panel #2. SRS resources #24 to #31 are associated with the UE panel #3.
  • the UE performs transmit beam sweeping over SRS resources #0 to #31 of all UE panels. It is assumed that the NW determines that the gain (reception power) of the SRS resources #3 and #8 is high as a result of the measurement of the transmission beam sweeping (SRS).
  • SRS transmission beam sweeping
  • the NW may set SRS resources #3 and #8 in the UE based on this determination result.
  • the UE can power off the UE panels #2 and #3 to which the SRS resource is not assigned.
  • the NW knows the association between the SRS resource and the UE panel as in the first to third embodiments, and the gains of the SRS resources #7 and #8 are close to each other.
  • the NW as shown in FIG. 10B, SRS resource #3. , #7 may be set in the UE. In this case, the UE can power off the UE panels #1, #2, #3 to which the SRS resource is not assigned.
  • the NW selects the SRS resource that optimizes the beam gain and the UE power consumption (the number of UE panels) based on the measurement result corresponding to the SRS resource and the UE panel associated with the SRS resource. You may.
  • the NW knows the association of the SRS resource and the UE panel and sets the SRS resource associated with a smaller number of UE panels, so that the UE can power off more UE panels and consume less power. It can be reduced.
  • wireless communication system Wireless communication system
  • communication is performed using any one or a combination of the wireless communication methods according to the above-described embodiments of the present disclosure.
  • FIG. 11 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 by 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 multiple Radio Access Technologies (RATs).
  • MR-DC is a dual connectivity (E-UTRA-NR Dual Connectivity (EN-DC)) with LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR, and a dual connectivity (NR-E) with NR and LTE.
  • E-UTRA-NR Dual Connectivity EN-DC
  • NR-E dual connectivity
  • NE-DC Dual Connectivity
  • the base station (eNB) of LTE (E-UTRA) is the master node (Master Node (MN)), and the base station (gNB) of NR is the secondary node (Secondary Node (SN)).
  • the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.
  • the wireless communication system 1 has dual connectivity between a plurality of base stations within 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.
  • dual connectivity NR-NR Dual Connectivity (NN-DC)
  • N-DC dual connectivity
  • MN and SN are NR base stations (gNB).
  • the radio communication system 1 includes a base station 11 forming a macro cell C1 having a relatively wide coverage and a base station 12 (12a-12c) arranged in the macro cell C1 and forming a small cell C2 narrower than the macro cell C1. You may prepare.
  • the user terminal 20 may be located in at least one cell. The arrangement and the number of each cell and user terminal 20 are not limited to those 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)) using multiple component carriers (Component Carrier (CC)) and dual connectivity (DC).
  • CA Carrier Aggregation
  • CC Component Carrier
  • DC dual connectivity
  • Each CC may be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the 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 higher frequency band than FR2.
  • the user terminal 20 may communicate with each CC using at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD).
  • 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 the base stations 11 and 12, the base station 11 corresponding to the upper station is the Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) is the 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 of, for example, 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 compatible with at least one of communication methods such as LTE, LTE-A, and 5G.
  • an orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing (OFDM)) based wireless access method may be used.
  • OFDM Orthogonal Frequency Division Multiplexing
  • DL Downlink
  • UL Uplink
  • 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.
  • other wireless access methods such as another single carrier transmission method and another multicarrier transmission method may be used as the UL and DL wireless access methods.
  • downlink shared channels Physical Downlink Shared Channel (PDSCH)
  • broadcast channels Physical Broadcast Channel (PBCH)
  • downlink control channels Physical Downlink Control
  • an uplink shared channel Physical Uplink Shared Channel (PUSCH)
  • an uplink control channel Physical Uplink Control Channel (PUCCH)
  • a random access channel that are shared by each user terminal 20.
  • Physical Random Access Channel (PRACH) Physical Random Access Channel
  • 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 downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of PDSCH and PUSCH, for example.
  • DCI Downlink Control Information
  • the DCI for scheduling PDSCH may be called DL assignment, DL DCI, etc.
  • the DCI for scheduling PUSCH may be called UL grant, UL DCI, etc.
  • PDSCH may be replaced with DL data
  • PUSCH may be replaced with 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 for searching DCI.
  • the search space corresponds to a search area and a search method for PDCCH candidates (PDCCH candidates).
  • a CORESET may be associated with one or more search spaces. The UE may monitor 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. Note that 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 eg, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK/NACK, etc.
  • scheduling request Scheduling Request (Scheduling Request ( (SR)
  • uplink control information Uplink Control Information (UCI)
  • a random access preamble for establishing a connection with a cell may be transmitted by the PRACH.
  • downlink, uplink, etc. may be expressed without adding “link”. Further, it may be expressed without adding "Physical" to the head of each channel.
  • a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. may be transmitted.
  • a cell-specific reference signal Cell-specific Reference Signal (CRS)
  • a channel state information reference signal Channel State Information Reference Signal (CSI-RS)
  • CSI-RS Channel State Information Reference Signal
  • DMRS Demodulation reference signal
  • PRS Positioning Reference Signal
  • PTRS Phase Tracking Reference Signal
  • the synchronization signal may be at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)), for example.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • a signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may be referred to as SS/PBCH block, SS Block (SSB), or the like. Note that SS and SSB may also be referred to as reference signals.
  • the wireless communication system even if the measurement reference signal (Sounding Reference Signal (SRS)), the demodulation reference signal (DMRS), etc. are transmitted as the uplink reference signal (Uplink Reference Signal (UL-RS)). Good.
  • the DMRS may be called a user terminal specific reference signal (UE-specific Reference Signal).
  • FIG. 12 is a diagram illustrating 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. It should be noted that the control unit 110, the transmission/reception unit 120, the transmission/reception antenna 130, and the transmission path interface 140 may each be provided with one or more.
  • the functional blocks of the characteristic part 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 unit described below may be omitted.
  • the control unit 110 controls the entire base station 10.
  • the control unit 110 can be configured by a controller, a control circuit, and the like described based on 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 using the transmission/reception unit 120, the transmission/reception antenna 130, and the transmission path interface 140, measurement, and the like.
  • the control unit 110 may generate data to be transmitted as a signal, control information, a sequence, etc., and transfer the generated 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, radio resource management, 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, etc., which are explained based on common knowledge in the technical field of the present disclosure. be able to.
  • the transmission/reception unit 120 may be configured as an integrated transmission/reception unit, or may be configured by a transmission unit and a reception unit.
  • the transmission unit may include a transmission processing unit 1211 and an RF unit 122.
  • the receiving unit may include a reception processing unit 1212, an RF unit 122, and a measuring unit 123.
  • the transmission/reception antenna 130 can be configured from an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna or the like.
  • the transmitting/receiving unit 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transceiver 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), or the like.
  • digital beamforming for example, precoding
  • analog beamforming for example, phase rotation
  • the transmission/reception unit 120 processes the Packet Data Convergence Protocol (PDCP) layer and the Radio Link Control (RLC) layer (for example, for the data and control information acquired from the control unit 110) (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. may be performed to generate a bit string to be transmitted.
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control
  • the transmission/reception unit 120 (transmission processing unit 1211) performs channel coding (which may include error correction coding), modulation, mapping, filtering, and discrete Fourier transform (Discrete Fourier Transform (DFT)) on the bit string to be transmitted. Processing (if necessary), inverse fast Fourier transform (Inverse Fast Transform (IFFT)) processing, precoding, digital-analog conversion, and other transmission processing may be performed to output the baseband signal.
  • channel coding which may include error correction coding
  • modulation modulation
  • mapping mapping
  • filtering discrete Fourier transform
  • DFT discrete Fourier Transform
  • IFFT inverse fast Fourier transform
  • precoding coding
  • digital-analog conversion digital-analog conversion
  • the transmitter/receiver 120 may modulate the baseband signal into a radio frequency band, perform filter processing, amplify, and the like, and transmit the radio frequency band signal via the transmission/reception antenna 130. ..
  • the transmission/reception unit 120 may perform amplification, filtering, demodulation to a baseband signal, etc., on a 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 (Fast Fourier Transform (FFT)) processing, and inverse discrete Fourier transform (Inverse Discrete Fourier Transform (IDFT) on the acquired baseband signal. )) Applying reception processing such as processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, User data or 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, etc. based on the received signal.
  • the measurement unit 123 receives power (for example, Reference Signal Received Power (RSRP)), reception quality (for example, Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)).
  • Signal strength for example, Received Signal Strength Indicator (RSSI)
  • channel information for example, CSI
  • the measurement result may be output to the control unit 110.
  • the transmission path interface 140 transmits/receives signals (backhaul signaling) to/from devices included in the core network 30, other base stations 10, and the like, 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 transmitting unit and the receiving unit of the base station 10 may be configured by at least one of the transmitting/receiving unit 120 and the transmitting/receiving antenna 130.
  • the transmitter/receiver 120 controls the combination of at least one of broadcast data and multicast data and unicast data according to traffic that occurs aperiodically (eg, aperiodic traffic, error, emergency, etc.). At least one signal of information (for example, PDCCH, PUCCH) and a reference signal (for example, specific RS) may be transmitted. In addition, the transmission/reception unit 120 controls a combination of at least one of broadcast data and multicast data and unicast data according to traffic that occurs aperiodically (for example, aperiodic traffic, error, emergency, etc.). At least one signal of information (for example, PDCCH, PUCCH) and a reference signal (for example, specific RS) may be received.
  • PDCCH Physical Downlink Control Channel
  • FIG. 13 is a diagram illustrating 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 include one or more.
  • the functional blocks of the characteristic part in the present embodiment are mainly shown, and the user terminal 20 may be assumed to also have other functional blocks necessary for wireless communication. A part of the processing of each unit described below may be omitted.
  • the control unit 210 controls the entire user terminal 20.
  • the control unit 210 can be configured by a controller, a control circuit, and the like described based on common recognition in the technical field according to the present disclosure.
  • the control unit 210 may control signal generation, mapping, and the like.
  • the controller 210 may control transmission/reception, measurement, etc. using the transmitter/receiver 220 and the transmitting/receiving antenna 230.
  • the control unit 210 may generate data to be transmitted as a signal, control information, a sequence, etc., and transfer the data to the transmission/reception unit 220.
  • the transmitting/receiving unit 220 may include a baseband unit 221, an RF unit 222, and a measuring unit 223.
  • the baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212.
  • the transmitter/receiver 220 may include 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 common knowledge in the technical field of the present disclosure.
  • the transmission/reception unit 220 may be configured as an integrated transmission/reception unit, or may be configured by a transmission unit and a reception unit.
  • the transmission unit may include a transmission processing unit 2211 and an RF unit 222.
  • the receiving unit may include a reception processing unit 2212, an RF unit 222, and a measuring unit 223.
  • the transmission/reception antenna 230 can be configured by an antenna described based on common recognition in the technical field according to the present disclosure, for example, an array antenna or the like.
  • the transmitter/receiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, and the like.
  • the transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, and the like.
  • the transmitter/receiver 220 may form at least one of a transmission beam and a reception beam by using digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), or the like.
  • digital beamforming eg, precoding
  • analog beamforming eg, phase rotation
  • the transmission/reception unit 220 processes the PDCP layer, the RLC layer (for example, RLC retransmission control), and the MAC layer (for example, for the data and control information acquired from the control unit 210). , HARQ retransmission control) may be performed to generate a bit string to be transmitted.
  • the transmission/reception unit 220 (transmission processing unit 2211) performs channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (if necessary), and IFFT processing on the bit string to be transmitted.
  • the baseband signal may be output by performing transmission processing such as precoding, digital-analog conversion, or the like.
  • the transmission/reception unit 220 transmits the channel using a DFT-s-OFDM waveform when transform precoding is enabled for the channel (for example, PUSCH).
  • the DFT process may be performed as the transmission process, or otherwise, the DFT process may not be performed as the transmission process.
  • the transmission/reception unit 220 may perform modulation, filtering, amplification, etc. on the radio frequency band for the baseband signal, and transmit the radio frequency band signal via the transmission/reception antenna 230. ..
  • the transmission/reception unit 220 may perform amplification, filtering, demodulation to a baseband signal, etc., on the signal in the radio frequency band received by the transmission/reception antenna 230.
  • the transmitting/receiving unit 220 (reception processing unit 2212) performs analog-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, decoding (error correction) on the acquired baseband signal.
  • User data and the like may be acquired by applying reception processing such as MAC layer processing, RLC layer processing, and PDCP layer processing.
  • the transmission/reception unit 220 may measure the received signal.
  • the measurement unit 223 may perform RRM measurement, CSI measurement, etc. based on the received signal.
  • the measurement unit 223 may measure received power (for example, RSRP), reception quality (for example, RSRQ, SINR, SNR), signal strength (for example, RSSI), channel information (for example, CSI), and the like.
  • the measurement result may be output to the control unit 210.
  • the transmission unit and the reception unit of the user terminal 20 may be configured by at least one of the transmission/reception unit 220, the transmission/reception antenna 230, and the transmission path interface 240.
  • the transmitter/receiver 220 may include instruction information (eg, DCI, SRI, SRS resource set) regarding at least one of a sounding reference signal (SRS) resource (eg, SRS resource ID) and an SRS resource set (eg, SRS resource set ID). Instruction) may be received.
  • the control unit 210 may determine a panel (for example, a UE panel or a UE panel ID) corresponding to at least one of the SRS resource and the SRS resource set based on the instruction information.
  • control unit 210 may report capability information (UE capability information) regarding the range of SRS resource IDs corresponding to each of a plurality of panels (multi-panel).
  • the instruction information may indicate an SRS resource (first embodiment).
  • the instruction information may indicate the SRS resource set corresponding to the panel and the SRS resource in the SRS resource set (second embodiment).
  • the control unit 210 may also report capability information regarding the number of panels.
  • the instruction information may indicate the SRS resource.
  • the control unit 210 may determine the panel based on the number of panels and the SRS resource (third embodiment).
  • control unit 210 may report capability information regarding that the user terminal does not have a plurality of panels (Embodiments 1 to 3).
  • each functional block may be realized by using one device physically or logically coupled, or directly or indirectly (for example, two or more devices physically or logically separated). , Wired, wireless, etc.) and may be implemented using these multiple devices.
  • the functional blocks may be realized by combining the one device or the plurality of devices with software.
  • 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 consideration. , Broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc.
  • a functional block (configuration unit) that causes transmission to function may be referred to as a transmitting unit (transmitting unit), a transmitter (transmitter), or the like.
  • the implementation method is not particularly limited.
  • the base station, the user terminal, and the like may function as a computer that performs the process of the wireless communication method of the present disclosure.
  • FIG. 14 is a diagram illustrating an example of a 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 terms such as a device, a circuit, a device, a section, and a unit are interchangeable with each other.
  • the hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or a plurality of each device illustrated in the figure, or may be configured not to include some devices.
  • processor 1001 may be implemented by one or more chips.
  • the processor 1001 For each function in the base station 10 and the user terminal 20, for example, the processor 1001 performs an arithmetic operation by loading predetermined software (program) on hardware such as the processor 1001, the memory 1002, and the communication via the communication device 1004. Is controlled, and at least one of reading and writing of data in the memory 1002 and the storage 1003 is controlled.
  • predetermined software program
  • the processor 1001 operates an operating system to control the entire computer, for example.
  • the processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, and the like.
  • CPU central processing unit
  • the control unit 110 (210) and the transmission/reception unit 120 (220) described above may be realized by the processor 1001.
  • the processor 1001 reads a program (program code), software module, data, and the like 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 implemented by a control program stored in the memory 1002 and operating in the processor 1001, and may be implemented similarly for other functional blocks.
  • the memory 1002 is a computer-readable recording medium, and for example, at least Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), and other appropriate storage media. It may be configured by one.
  • the memory 1002 may be called a register, a cache, a main memory (main storage device), or the like.
  • the memory 1002 may store an executable program (program code), a software module, etc. for implementing the wireless communication method according to an 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 disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray (registered trademark) disk), removable disk, hard disk drive, smart card, flash memory device (eg, card, stick, key drive), magnetic stripe, database, server, and/or other suitable storage medium. May be configured by The storage 1003 may be called an auxiliary storage device.
  • a computer-readable recording medium for example, a flexible disk, a floppy (registered trademark) disk, a magneto-optical disk (for example, a compact disk (Compact Disc ROM (CD-ROM), etc.), a digital versatile disk, Blu-ray (registered trademark) disk), removable disk, hard disk drive, smart card, flash memory device (eg, card, stick, key drive), magnetic stripe, database, server, and/or
  • the communication device 1004 is hardware (transmission/reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, a communication module, or the like.
  • the communication device 1004 for example, realizes at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)), a high frequency switch, a duplexer, a filter, a frequency synthesizer, etc. May be included.
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • the transmission/reception unit 120 (220) and the transmission/reception antenna 130 (230) described above may be realized by the communication device 1004.
  • the transmitter/receiver 120 (220) may be physically or logically separated from the transmitter 120a (220a) and the receiver 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 performs output to the outside.
  • the input device 1005 and the output device 1006 may be integrated (for example, a touch panel).
  • Each device such as the processor 1001 and the memory 1002 is connected by a 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 (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 part or all of each functional block may be realized by using the hardware. For example, the 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
  • CMOS complementary metal-oxide-semiconductor
  • CC component carrier
  • a radio frame may be composed of one or more periods (frames) in the time domain.
  • Each of the one or more periods (frames) forming the radio frame may be referred to as a subframe.
  • a 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 certain signal or channel.
  • the 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 radio frame configuration. , At least one of a specific filtering process performed by the transceiver in the frequency domain, a specific windowing process performed by the transceiver in the time domain, and the like.
  • a slot may be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbol, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol, etc.) in the time domain. Further, the slot may be a time unit based on numerology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single Carrier Frequency Division Multiple Access
  • a slot may include multiple minislots. Each minislot may be composed of one or more symbols in the time domain. The minislot may also be called a subslot. Minislots may be composed of fewer symbols than slots.
  • a PDSCH (or PUSCH) transmitted in a time unit larger than a 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.
  • Radio frame, subframe, slot, minislot, and symbol all represent the time unit for transmitting signals. Radio frames, subframes, slots, minislots, and symbols may have different names corresponding to them. It should be noted that time units such as a frame, a subframe, a slot, a minislot, and a symbol in the present disclosure may be replaced with each other.
  • one subframe may be called a TTI
  • a plurality of consecutive subframes may be called a TTI
  • one slot or one minislot may be called a TTI. That is, at least one of the subframe and the 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 the TTI may be called a slot, a minislot, etc. instead of a subframe.
  • TTI means, for example, the minimum time unit of scheduling in wireless communication.
  • the base station performs scheduling to allocate radio resources (frequency bandwidth that can be used in each user terminal, transmission power, etc.) to each user terminal in units of TTI.
  • the definition of TTI is not limited to this.
  • the TTI may be a transmission time unit of a channel-encoded data packet (transport block), code block, codeword, or the like, or may be a processing unit of scheduling, link adaptation, or the like.
  • the time interval for example, the number of symbols
  • the transport block, code block, codeword, etc. may be shorter than the TTI.
  • one slot or one minislot is called a TTI
  • one or more TTIs may be the minimum time unit for scheduling.
  • the number of slots (minislot number) that constitutes the minimum time unit of the scheduling may be controlled.
  • a TTI having a time length of 1 ms may be called a normal TTI (TTI in 3GPP Rel. 8-12), a normal TTI, a long TTI, a normal subframe, a normal subframe, a long subframe, a slot, and the like.
  • the TTI shorter than the normal TTI may be called a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a minislot, a subslot, a slot, and the like.
  • a long TTI (eg, normal TTI, subframe, etc.) may be read as a TTI having a time length of more than 1 ms, and a short TTI (eg, 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 included in the RB may be the same regardless of the numerology, and may be 12, for example.
  • the number of subcarriers included in the RB may be determined based on numerology.
  • the RB may include one or more symbols in the time domain, and may be one slot, one minislot, one subframe, or one TTI in length.
  • One TTI, one subframe, etc. may be configured by one or a plurality of resource blocks.
  • one or more RBs are physical resource blocks (Physical RB (PRB)), subcarrier groups (Sub-Carrier Group (SCG)), resource element groups (Resource Element Group (REG)), PRB pairs, RBs. It may be called a pair or the like.
  • PRB Physical RB
  • SCG Sub-Carrier Group
  • REG Resource Element Group
  • the resource block may be composed of one or more resource elements (Resource Element (RE)).
  • RE resource Element
  • one RE may be a radio resource area of one subcarrier and one symbol.
  • Bandwidth Part (may be called partial bandwidth etc.) represents a subset of continuous common RBs (common resource blocks) for a certain neurology in a certain carrier. Good.
  • the common RB may be specified by the index of the RB based on the common reference point of the carrier.
  • PRBs may be defined in a BWP and numbered within that BWP.
  • BWP may include UL BWP (BWP for UL) and DL BWP (BWP for DL).
  • BWP for UL 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 does not have to assume that it will send and receive predetermined signals/channels outside the active BWP.
  • BWP bitmap
  • the structures of the radio frame, subframe, slot, minislot, symbol, etc. described above are merely examples.
  • the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, and included in RBs The number of subcarriers, the number of symbols in the TTI, the symbol length, the cyclic prefix (CP) length, and other configurations can be variously changed.
  • the information, parameters, etc. described in the present disclosure may be represented by using an absolute value, may be represented by using a relative value from a predetermined value, or by using other corresponding information. May be represented.
  • radio resources may be indicated by a predetermined index.
  • Information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies.
  • data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description include voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any of these. May be represented by a combination of
  • Information and signals can be output from the upper layer to at least one of the lower layer and the lower layer to the upper layer.
  • Information, signals, etc. may be input and 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. Information, signals, etc. that are input and output can be overwritten, updated or added. The output information, signal, etc. may be deleted. The input information, signal, etc. may be transmitted to another device.
  • notification of information is not limited to the aspect/embodiment described in the present disclosure, and may be performed using another method.
  • notification of information in the present disclosure includes physical layer signaling (for example, downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI))), upper layer signaling (for example, Radio Resource Control). (RRC) signaling, broadcast information (master information block (Master Information Block (MIB)), system information block (System Information Block (SIB)), etc.), Medium Access Control (MAC) signaling), other signals or a combination thereof May be implemented 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 called 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.
  • the MAC signaling may be notified using, for example, a MAC control element (MAC Control Element (CE)).
  • CE MAC Control Element
  • the notification of the predetermined information is not limited to the explicit notification, and may be implicitly (for example, by not notifying the predetermined information or another information). May be carried out).
  • the determination may be performed by a value represented by 1 bit (0 or 1), or may be performed by a boolean value represented by true or false. , May be performed by comparison of numerical values (for example, comparison with a predetermined value).
  • software, instructions, information, etc. may be sent and received via a transmission medium.
  • the software uses websites that use at least one of wired technology (coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technology (infrared, microwave, etc.) , Servers, or other remote sources, these wired and/or wireless technologies are included within the definition of transmission media.
  • wired technology coaxial cable, optical fiber cable, twisted 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”, “precoder”, “weight (precoding weight)”, “pseudo-collocation (Quasi-Co-Location (QCL))”, “Transmission Configuration Indication state (TCI 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. Can be used for
  • base station BS
  • wireless base station fixed station
  • NodeB NodeB
  • eNB eNodeB
  • gNB gNodeB
  • Access point "Transmission Point (TP)", “Reception Point (RP)”, “Transmission/Reception Point (TRP)”, “Panel”
  • Cell Cell
  • femto cell small cell
  • pico cell femto cell
  • a base station can accommodate one or more (eg, 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 defined by a base station subsystem (for example, a small indoor base station (Remote Radio Head (RRH))) to provide communication services.
  • a base station subsystem for example, a small indoor base station (Remote Radio Head (RRH))
  • RRH Remote Radio Head
  • the term "cell” or “sector” refers to part or all of the coverage area of a base station and/or a base station subsystem providing communication services in this coverage.
  • MS Mobile Station
  • UE User Equipment
  • a mobile station is a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal. , Handset, user agent, mobile client, client or some other suitable term.
  • At least one of the base station and the mobile station may be called a transmission device, a reception device, a wireless communication device, or the like.
  • 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).
  • At least one of the base station and the mobile station also includes a device that does not necessarily move during a communication operation.
  • at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.
  • IoT Internet of Things
  • the base station in the present disclosure may be replaced by the user terminal.
  • the communication between the base station and the user terminal is replaced with communication between a plurality of user terminals (eg, may be called Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.)
  • D2D Device-to-Device
  • V2X Vehicle-to-Everything
  • the user terminal 20 may have the function of the above-described base station 10.
  • the words such as “up” and “down” may be replaced with the words corresponding to the communication between terminals (for example, “side”).
  • the uplink channel and the downlink channel may be replaced with the side channel.
  • the user terminal in the present disclosure may be replaced by the base station.
  • the base station 10 may have the function of the user terminal 20 described above.
  • the operation performed by the base station may be performed by its upper node in some cases.
  • various operations performed for communication with a terminal include a base station and one or more network nodes other than the base station (for example, Mobility Management Entity (MME), Serving-Gateway (S-GW), etc. are conceivable, but not limited to these) or a combination of these is clear.
  • MME Mobility Management Entity
  • S-GW Serving-Gateway
  • each aspect/embodiment described in the present disclosure may be used alone, in combination, or may be used by switching according to execution. Further, the order of the processing procedures, sequences, flowcharts, and the like 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 this disclosure present elements of the various steps in a sample order, and are not limited to the specific 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
  • FX Future generation radio access
  • GSM Global System for Mobile communications
  • CDMA2000 CDMA2000
  • Ultra Mobile Broadband UMB
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.11 WiMAX (registered trademark)
  • IEEE 802.11 WiMAX (registered trademark)
  • IEEE 802.11 WiMAX (registered trademark)
  • Ultra-WideBand (UWB), Bluetooth (registered trademark), a system using any other suitable wireless communication method, and a next-generation system extended based on these may be applied.
  • a plurality of systems may be combined and applied (for example, a combination of LTE or LTE-A and 5G).
  • the phrase “based on” does not mean “based only on,” unless expressly specified otherwise. In other words, the phrase “based on” means both "based only on” and “based at least on.”
  • any reference to elements using designations such as “first”, “second”, etc. as used in this disclosure does not generally limit the amount or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, reference to first and second elements does not mean that only two elements can be employed or that the first element must precede the second element in any way.
  • determining may encompass a wide variety of actions.
  • judgment means “judging", “calculating”, “computing”, “processing”, “deriving”, “investigating”, “searching” (looking up, search, inquiry) ( For example, it may be considered to be a “decision” for a search in a table, database or another data structure), ascertaining, etc.
  • “decision” means receiving (eg, receiving information), transmitting (eg, transmitting information), input (input), output (output), access (access). Accessing (eg, accessing data in memory), etc., may be considered to be a “decision.”
  • judgment (decision) is considered to be “judgment (decision)” of resolving, selecting, choosing, establishing, establishing, comparing, etc. Good. That is, “determination (decision)” may be regarded as “determination (decision)” of some operation.
  • the “maximum transmission power” described in the present disclosure may mean the maximum value of the transmission power, the nominal maximum transmission power (the nominal UE maximum transmit power), or the rated maximum transmission power (the maximum transmission power). It may mean rated UE maximum transmit power).
  • connection refers to any direct or indirect connection or coupling between two or more elements. And can include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” to each other.
  • the connections or connections between the elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access”.
  • radio frequency domain microwave Regions
  • electromagnetic energy having wavelengths in the light (both visible and invisible) region, etc. can be used to be considered “connected” or “coupled” to each other.
  • 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”.
  • the terms “remove”, “coupled” and the like may be construed as “different” as well.

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Abstract

La présente invention concerne un équipement utilisateur comprenant : une unité de réception qui reçoit des informations d'instruction relatives à au moins une des ressources de signal de référence de sondage (SRS) et des ensembles de ressources SRS; et une unité de commande qui, sur la base des informations d'instruction, détermine un panneau correspondant à au moins une des ressources SRS et des ensembles de ressources SRS. Selon un aspect de la présente invention, une pluralité de panneaux peuvent être utilisés de manière appropriée.
PCT/JP2018/046168 2018-12-14 2018-12-14 Équipement utilisateur et procédé de communication sans fil WO2020121528A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114070519A (zh) * 2020-08-07 2022-02-18 大唐移动通信设备有限公司 信息传输方法、装置及存储介质
WO2022193260A1 (fr) * 2021-03-18 2022-09-22 Oppo广东移动通信有限公司 Procédé de communication sans fil, équipement terminal et dispositif de réseau
WO2023272711A1 (fr) * 2021-07-02 2023-01-05 Qualcomm Incorporated Configuration d'ensemble de ressources de signal de référence de sondage (srs) pour panneaux asymétriques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023123409A1 (fr) * 2021-12-31 2023-07-06 Oppo广东移动通信有限公司 Procédé de communication sans fil, dispositif terminal et dispositif de réseau

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9154267B2 (en) * 2012-07-02 2015-10-06 Intel Corporation Sounding reference signal (SRS) mechanism for intracell device-to-device (D2D) communication
US9847862B2 (en) * 2015-03-14 2017-12-19 Qualcomm Incorporated Reciprocal channel sounding reference signal multiplexing
JP6125596B1 (ja) * 2015-11-05 2017-05-10 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
EP4087155A1 (fr) * 2016-03-25 2022-11-09 Ntt Docomo, Inc. Terminal utilisateur, station de base radio et procédé de communication radio
US10367616B2 (en) * 2016-04-04 2019-07-30 Qualcomm Incorporated Dynamic sounding reference signal scheduling
WO2018043560A1 (fr) * 2016-08-31 2018-03-08 株式会社Ｎｔｔドコモ Terminal d'utilisateur, et procédé de communication sans fil
CN106427870A (zh) * 2016-10-17 2017-02-22 华南农业大学 一种用于汽车前挡风玻璃的安全气囊助力脱离装置
US11160029B2 (en) * 2017-01-04 2021-10-26 Lg Electronics Inc. Controlling uplink power based on downlink path loss and configuration indicated by base station
US10218424B2 (en) * 2017-01-13 2019-02-26 Nokia Technologies Oy Reference signal indications for massive MIMO networks
US10735157B2 (en) * 2017-02-03 2020-08-04 Futurewei Technologies, Inc. UE-assisted SRS resource allocation
KR102287106B1 (ko) * 2017-02-14 2021-08-06 엘지전자 주식회사 Srs 설정 정보를 수신하는 방법 및 이를 위한 단말
CN108540189A (zh) * 2017-03-06 2018-09-14 北京信威通信技术股份有限公司 一种非相干多天线传输方法和装置
US11139871B2 (en) * 2017-03-14 2021-10-05 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Uplink signal transmission method and related device
JP6462751B2 (ja) * 2017-03-30 2019-01-30 株式会社Ｎｔｔドコモ ユーザ端末、無線基地局及び無線通信方法
KR102257816B1 (ko) * 2017-05-01 2021-05-28 엘지전자 주식회사 무선 통신 시스템에서 단말의 사운딩 방법 및 이를 위한 장치
CN110710281B (zh) * 2017-05-04 2022-06-14 Lg 电子株式会社 无线通信系统中发送和接收上行链路的方法及其装置
CN108111280B (zh) * 2017-09-11 2023-07-14 中兴通讯股份有限公司 参考信号配置、信息的发送、信息的接收方法及装置

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
"Discussion on uplink multi-panel and multi-TRP operation", 3GPP TSG RAN WG1 #90 R1-1712541, 12 August 2017 (2017-08-12), XP051315357 *
ERICSSON: "UL MIMO for non-codebook based transmission", 3GPP TSG RAN WG1 #90BIS R1-1718426, 3 October 2017 (2017-10-03), XP051341608 *
ERICSSON: "UL MIMO for non-codebook based transmission", 3GPP TSG-RAN WG1 NR AD HOC #3 R1-1716342, 12 September 2017 (2017-09-12), XP051329931 *
HUAWEI ET AL.: "UL multi-TRP/panel/beam operation in R15", 3GPP TSG RAN WG1 #91 R1-1719818, 17 November 2017 (2017-11-17), XP051369196 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114070519A (zh) * 2020-08-07 2022-02-18 大唐移动通信设备有限公司 信息传输方法、装置及存储介质
WO2022193260A1 (fr) * 2021-03-18 2022-09-22 Oppo广东移动通信有限公司 Procédé de communication sans fil, équipement terminal et dispositif de réseau
WO2023272711A1 (fr) * 2021-07-02 2023-01-05 Qualcomm Incorporated Configuration d'ensemble de ressources de signal de référence de sondage (srs) pour panneaux asymétriques

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