Terminal equipment, base station equipment, and communication method

Abstract

To communicate efficiently. [Solution] A terminal device that communicates with a base station device, comprising: an upper layer processing unit that receives a first parameter and a third parameter; and a transmitting unit that transmits L1-RSRP as uplink control information (UCI), wherein the first parameter is a parameter indicating the number M of CSI-RS resources measured in each time instance reported in a certain report setting, The third parameter is a time instant for measuring the L1-RSRP of each of the CSI-RSs. A parameter Y indicating the number of times, wherein the UCI includes at least a first field set, the first field set having Y first fields, each of the Y first fields having a CSI-RS resource index in each of the Y time instances. This indicates the number N of CRI (Critical Risk Intake).

Description

[Technical Field]

[0001] The present invention relates to a terminal device, a base station device, and a communication method. [Background technology]

[0002] LTE (Long The Third Generation Partnership Project (3GPP:3) is called "Term Evolution" or "EUTRA (Evolved Universal Terrestrial Radio Access)". rd This is being considered in the Generation Partnership Project. In LTE, base station equipment is eN odeB (evolved NodeB), and terminal devices may also be called UE (User Equipment). LTE is a cellular communication system in which multiple base station devices are arranged in a cell-like structure to cover different areas. A single base station device may manage one or more serving cells.

[0003] 3GPP is considering a next-generation wireless communication standard (NR: New Radio) to propose to the International Mobile Telecommunication (IMT)-2020 standard for next-generation mobile communication systems, which is being developed by the International Telecommunication Union (ITU) (Non-Patent Literature 1). Within a single technological framework, eMBB (enhanced Mobile Broadband) and mMTC The system is required to meet the requirements of three scenarios: (massive machine type communication), URLLC (Ultra Reliable and Low Latency Communication), and another scenario. [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] "New SID proposal: Study on New Radio Access Technology", RP-160671, NTT DOCOMO, 3GPP TSG RAN Meeting #71, Goteborg, Sweden, 7th - 10th March, 2016. [Overview of the project] [Problems that the invention aims to solve]

[0005] The present invention provides a terminal device, a base station device, and a communication method used in the terminal device or the base station device for efficient communication. [Means for solving the problem]

[0006] (1) A first aspect of this embodiment of the present invention is a terminal device that communicates with a base station device, comprising: an upper layer processing unit that receives a first parameter and a third parameter; a receiving unit that receives M CSI-RSs based on the first parameter; and a unit that measures the L1-RSRP of each of the M CSI-RSs. The system comprises a measurement unit and a transmission unit that transmits L1-RSRP as uplink control information (UCI), wherein the first parameter is a parameter indicating the number M of CSI-RS resources measured in each time instance reported in a certain report setting, and the third parameter is a parameter that indicates the number of time instances Y for measuring the L1-RSRP of each CSI-RS, wherein the UCI includes at least a first field set, and the first field A set consists of Y first fields, each of which represents the number N of CSI-RS resource indices (CRIs) in each of the Y time instances. vinegar.

[0007] (2) A terminal device according to the first embodiment of this present invention, relating to L1-RSRP A second parameter is received to set a threshold, and in each of the time instances, the L1-RSRP associated with the N CSI-RS resource indices is between a first value and a second value, the first value being the maximum measured in the time instance. The L1-RSRP value is obtained by subtracting the threshold value from the first value. This is the value obtained.

[0008] (3) A terminal device according to a first embodiment of this present invention, wherein the UCI is first It consists of a first part and a second part, the first part including at least the first field set.

[0009] (4) A terminal device according to a first embodiment of this present invention, wherein the bit size of the first field is determined based on the value of M.

[0010] (5) A terminal device according to a first embodiment of this present invention, wherein the second part comprises at least the N L1-RSRPs and the N CRIs in the Y time instances. This includes.

[0011] (6) A second aspect of this embodiment of the present invention is a base station device that communicates with a terminal device, comprising: an upper layer processing unit that sets a first parameter and a third parameter; a transmitting unit that transmits M CSI-RSs based on the first parameter; and L1-RSRP as uplink control information (UCI) The system comprises a receiving unit that receives and the first parameter is a parameter that indicates the number M of CSI-RS resources measured in each time instance reported in a certain report setting. The third parameter is a time-based parameter for measuring the L1-RSRP of each of the CSI-RSs. A parameter Y indicating the number of instances, wherein the UCI includes at least a first field set, and the first field set consists of Y first fields, each of which The Y first fields represent the number N of CSI-RS resource indices (CRIs) in each of the Y time instances.

[0012] (7) A third aspect of this embodiment of the present invention is a communication method for a terminal device communicating with a base station device, the method comprising: receiving a first parameter and a third parameter; receiving M CSI-RSs based on the first parameter; measuring the L1-RSRP of each of the M CSI-RSs; transmitting the L1-RSRP as uplink control information (UCI); and the first parameter being a certain report setting The number of CSI-RS resources measured in each time instance reported is M The parameter shown is the third parameter which measures the L1-RSRP of each of the CSI-RSs. A parameter that indicates the number of time instances Y for the UCI, wherein the UCI includes at least a first field set, and the first field set consists of Y first fields. Each of the Y first fields represents the number N of CSI-RS resource indices (CRIs) in each of the Y time instances. [Effects of the Invention]

[0013] According to this invention, terminal devices can communicate efficiently. Furthermore, base station devices can communicate efficiently. [Brief explanation of the drawing]

[0014] [Figure 1] This is a conceptual diagram of a wireless communication system according to one aspect of this embodiment. [Figure 2] This is an example illustrating the relationship between Nslot symb, SCS setting μ, and CP setting according to one aspect of this embodiment. [Figure 3] This is a schematic diagram showing an example of a resource grid in a subframe according to one aspect of this embodiment. [Figure 4] This is a schematic block diagram showing the configuration of a terminal device 1 according to one aspect of this embodiment. [Figure 5] This is a schematic block diagram showing the configuration of a base station device 3 according to one aspect of this embodiment. [Figure 6] This figure shows an example of an AI / ML functional framework for an NR air interface using terminal equipment and base station equipment according to this embodiment. [Figure 7] This figure shows an example of the downlink beam prediction process performed by the base station device 3 according to this embodiment. [Figure 8] This figure shows an example of the downlink beam prediction process performed by the terminal device 1 according to this embodiment. [Figure 9] This figure shows an example of a method for notifying information related to L1-RSRP measured in terminal device 1 according to this embodiment. [Figure 10] This diagram shows an example of how terminal device 1 according to this embodiment notifies L1-RSRP. [Figure 11] This figure shows an example of how terminal device 1 according to this embodiment notifies L1-RSRP using differential RSRP. [Figure 12] This figure shows an example of a method for notifying information related to L1-RSRP that is predicted in the terminal device 1 according to this embodiment. [Modes for carrying out the invention]

[0015] Embodiments of the present invention will be described below.

[0016] "A, and / or B" may be a term that includes "A", "B", or "A and B".

[0017] Figure 1 is a conceptual diagram of a wireless communication system according to one embodiment of this model. In Figure 1, the wireless communication system comprises terminal devices 1A to 1C and a base station device 3. Hereinafter, terminal devices 1A to 1C may also be referred to as terminal device 1. The base station device 3 comprises a communication device, a node, NB (NodeB), eNB, gNB, and network device (core network, gateway). The way may include some or all of the access points. Terminal device 1 may also be referred to as UE (User Equipment). The eNB is a node that provides EUTRA user plane and control plane protocol termination to one or more terminal devices 1, and in particular via the NG (Next Generation) interface, the fifth generation core An eNB connected to the network (5GC) is referred to as an ng-eNB. A gNB is a node that provides NR user plane and control plane protocol termination to one or more terminal devices and is connected to 5GC via the NG interface.

[0018] The base station device 3 may constitute either or both of an MCG (Master Cell Group) and an SCG (Secondary Cell Group). The MCG is a group of serving cells comprising at least a PCell (Primary Cell). The SCG is at least A CG is a group of serving cells that includes a PSCell (Primary Secondary Cell). A PCell may be a serving cell given based on the initial connection. An MCG may consist of one or more SCells (Secondary Cells). An SCG may consist of one or more SCells. PCells and PSCells may also be referred to as SpCells (Special Cells). The process of using one SpCell and one or more SCells to form one CG (Cell Group) and communicate is called carrier aggregation.

[0019] The MCG may consist of one or more serving cells on EUTRA. The SCG may also consist of one or more serving cells on NR. Furthermore, the MCG may consist of one or more serving cells on NR. Furthermore, the SCG may also consist of one or more serving cells on EUTRA. Additionally, both the MCG and SCG may consist of one or more serving cells on either EUTRA or NR. Here, "on EUTRA" refers to EUTRA RAT (Radio Access Technology). It may also mean that the NR was applied. Furthermore, "on NR" may also mean that the NR RAT was applied.

[0020] Furthermore, the MCG may be composed of the first base station equipment. Also, the SCG may be composed of the second base station equipment. In other words, the PCell may be composed of the first base station equipment. The PSCell may be composed of the second base station equipment. The first base station equipment and the second base station equipment may each be the same as base station equipment 3.

[0021] The following explains the frame structure.

[0022] In a wireless communication system according to one aspect of this embodiment, at least OFDM (Orthogonal Frequency Division Multiplex) is used. The OFDM symbol is used when OFDM is It is a unit of the inter-domain. An OFDM symbol contains at least one or more subcarriers. OFDM symbols are converted to time-continuous signals in baseband signal generation. At least CP-OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplex) is used in the downlink. In linking, CP-OFDM or DFT-s-OFDM (Discrete Fourier) Any of Transform - spread - Orthogonal Frequency Division Multiplex) may be used DFT - s - OFDM may be given by applying transform precoding to CP - OFDM.

[0023] The sub - carrier spacing (SCS) may be given by the sub - carrier spacing Δf = 2 μ ·15 kHz. For example, the SCS setting μ may be set to any of 0, 1, 2, 3, 4, and / or 5. For a certain BWP (BandWidth Part), the SCS setting μ may be given by a parameter of the upper layer. That is, regardless of the downlink and / or uplink, the value of μ may be set for each BWP (for each downlink BWP, for each uplink BWP).

[0024] In the wireless communication system according to one aspect of the present embodiment, the time unit T is used for expressing the length in the time domain c The time unit T c is such that T c = 1 / (Δf max ·N f ). Δf max may be the maximum value of the SCS supported in the wireless communication system according to one aspect of the present embodiment. Δf max is such that Δf max = 480 kHz. N f is such that N f = 4096. The constant κ is κ = Δf max ·N f / (Δf ref N f,ref ) = 64. Δf ref may be 15 kHz. N f,ref may be 2048.

[0025] The constant κ is the reference SCS and T cThe value may represent the relationship between the two. The constant κ may be used for the length of the subframe. The number of slots included in the subframe may be given, at least based on the constant κ. Δf ref This is a reference SCS, and N f,ref This is the value corresponding to the reference SCS.

[0026] Signal transmission on the downlink and / or uplink consists of a 10ms frame. Each frame contains 10 subframes, each 1ms long. The frame length may be given regardless of SCSΔf; that is, the frame configuration may be given regardless of the value of μ. The subframe length may also be given regardless of SCSΔf; that is, the subframe configuration may be given regardless of μ.

[0027] For a given SCS setting μ, the number of slots and index in one subframe A slot number n may be given. For example, slot number n μ s In the subframe, the range is from 0 to N subframe,μ slot The values ​​may be given in ascending order within the range of -1. For the SCS setting μ, the number of slots and their indices in a single frame may be given. Also, the slot number n may be given. μ s,f The number ranges from 0 to N in the frame. frame,μ slot The values ​​may be given in ascending order within the range of -1. Consecutive N slot symb Each OFDM symbol may be contained within a single slot. slot symb is and / or CP(Cyclic The CP setting may be given based on at least some or all of the Prefix setting. The parameters may be given based on at least the tier parameters. The CP settings may be given based on at least dedicated RRC signaling. The slot number may also be called the slot index.

[0028] Figure 2 shows an N according to one aspect of this embodiment. slot symb This is an example showing the relationship between the SCS setting μ (also called the subcarrier spacing setting u) and the CP setting. Figure 2A shows... For example, if the SCS setting μ is 2 and the CP setting is normal CP (NCP), then N slot symb =14, N frame,μ slot =40, N subframe,μ slot = 4. Also, in Figure 2B, for example, if the SCS setting μ is 2 and the CP setting is extended CP (ECP), then N slot symb =12, N frame,μ slot =40, N subframe,μ slot = 4

[0029] The physical resources according to this embodiment will be described below.

[0030] An antenna port is defined by the fact that the channels through which symbols are transmitted in one antenna port can be inferred from the channels through which other symbols are transmitted in the same antenna port. If the large-scale property of a channel through which symbols are transmitted in one antenna port can be inferred from the channels through which symbols are transmitted in another antenna port, the two antenna ports may be referred to as QCL (Quasi Co-Located). The large-scale property may include at least the long-interval properties of the channel. The large-scale property may include some or all of the following: delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters. It may include at least the following. The first antenna port and the second antenna port being QCL with respect to beam parameters means that the receiving beam assumed by the receiver for the first antenna port and the receiving beam assumed by the receiver for the second antenna port are the same. The first antenna port and the second antenna port being QCL with respect to beam parameters means that the transmitting beam assumed by the receiver for the first antenna port and the transmitting beam assumed by the receiver for the second antenna port are the same. Terminal device 1 may assume that the two antenna ports are QCL if the large-scale characteristics of the channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at the other antenna port. The two antenna ports being QCL may mean that it is assumed that the two antenna ports are QCL.

[0031] For the SCS setting μ and carrier set, N size,μ grid,x N RB sc Individual subcarriers and N subframe,μ symb A resource grid is given, defined by N OFDM symbols. size,μ grid,x This may indicate the number of resource blocks given for the SCS configuration μ for carrier x. size,μ grid,x This may indicate the carrier bandwidth. size,μ grid,x This may correspond to the value of the CarrierBandwidth parameter in the higher layer. Carrier x may represent either a downlink carrier or an uplink carrier. That is, x may be either "DL" or "UL". RB sc is one resource block The number of subcarriers included in the buck may also be indicated. RB scThis may be 12. At least one resource grid may be provided for each antenna port p, and / or for each SCS setting μ, and / or for each transmission direction setting. The transmission direction includes at least the downlink (DL) and uplink (UL). Hereinafter, a set of parameters including at least some or all of the antenna port p, SCS setting μ, and transmission direction settings may also be referred to as the first radio parameter set. In other words, one resource grid may be provided for each first radio parameter set. Note that a radio parameter set may be one or more sets containing one or more radio parameters (physical layer parameters or upper layer parameters).

[0032] In a downlink, the carriers included in the serving cell are called downlink carriers (or downlink component carriers). In an uplink, the carriers included in the serving cell are called uplink carriers (uplink component carriers). Downlink component carriers and uplink component carriers may be collectively referred to as component carriers (or carriers).

[0033] The serving cell type may be PCell, PSCell, or SCell. PCell is a cell ID (physical layer cell ID, physical cell ID) obtained from the SSB (Synchronization signal / Physical broadcast channel block) during the initial connection. A serving cell may be identified at least on the basis of its ID. An SCell may be a serving cell used in carrier aggregation. An SCell may be a serving cell provided at least on the basis of dedicated RRC signaling. Also, an SSB may be rephrased as an SS / PBCH (Synchronization Signal / Physical Broadcast Channel) block.

[0034] For each first radio parameter set, each element in the resource grid provided may be referred to as a resource element (RE). The resource element may be indexed by the frequency domain index k sc and the time domain index l sym For a certain first radio parameter set, the resource element is indexed by the frequency domain index k sc and the time domain index l sym The resource element indexed by the frequency domain index k sc and the time domain index l sym may also be referred to as the resource element (k sc , l sym ). The frequency domain index k sc is any value from 0 to N μ RB N RB sc -1. N μ RB may be the number of resource blocks provided for the SCS setting μ. N μ RB may be N size,μ grid,x . N RB sc is the number of subcarriers included in the resource block, and N RB sc = 12. The frequency domain index k sc may correspond to the subcarrier index k sc . The time domain index l sym may correspond to the OFDM symbol index l sym . One or more resource elements may correspond to a physical resource and a complex value (complex value modulation symbol). For each of the one or more resource elements corresponding to a physical resource and / or a complex value, one or more information bits (information bits for control information, transport blocks, and upper layer parameters) may be mapped.

[0035] FIG. 3 is a schematic diagram showing an example of a resource grid in a subframe according to an aspect of the present embodiment. In the resource grid of FIG. 3, the horizontal axis is the index l of the time domain sym and the vertical axis is the index k of the frequency domain sc . In one subframe, the frequency domain of the resource grid is N μ RB N RB sc sub-carriers. In one subframe, the time domain of the resource grid may include 14·2 μ OFDM symbols. One resource block is composed of N RB sc sub-carriers. The time domain of the resource block may correspond to 1 OFDM symbol. The time domain of the resource block may correspond to 14 OFDM symbols. The time domain of the resource block may correspond to one or more slots. The time domain of the resource block may correspond to one subframe.

[0036] Terminal device 1 may be instructed to transmit and receive using only a subset of the resource grid. A subset of the resource grid is also called a BWP, and a BWP may be given based on at least some or all of the parameters of the higher layer and / or DCI. A BWP may also be called a CBP (Carrier Bandwidth Part). Terminal device 1 is not required to transmit and receive using the entire set of resource grid. Terminal device 1 may be instructed to transmit and receive using some of the frequency resources within the resource grid. A single BWP may consist of multiple resource blocks in the frequency domain. A single BWP may consist of multiple consecutive resource blocks in the frequency domain. A BWP set for a downlink carrier may also be called a downlink BWP. A BWP set for an uplink carrier may also be called an uplink BWP. A BWP may be a subset of the carrier bandwidth (a subset of the frequency domain in the carrier).

[0037] One or more downlink BWPs may be set for each serving cell. One or more uplink BWPs may be set for each serving cell.

[0038] Of the one or more downlink BWPs set for a serving cell, one downlink BWP may be set as the active downlink BWP. A downlink BWP switch may be used to deactivate one active downlink BWP and activate the other inactive downlink BWPs. Downlink BWP switching may be controlled by a BWP instruction field included in the downlink control information. Downlink BWP switching may also be controlled based on higher-layer parameters.

[0039] In an active downlink BWP, DL-SCH may be received. In an active downlink BWP, PDCCH may be monitored. In an active downlink BWP, PDSCH may be received.

[0040] DL-SCH does not need to be received in an inactive downlink BWP. PDCCH does not need to be monitored in an inactive downlink BWP. CSI does not need to be reported for an inactive downlink BWP.

[0041] Of the one or more downlink BWPs set for a serving cell, two or more downlink BWPs do not need to be set as active downlink BWPs.

[0042] Of the one or more uplink BWPs configured for a serving cell, one uplink BWP may be set as the active uplink BWP. The uplink BWP switch is used to deactivate the active uplink BWP and activate the other inactive uplink BWPs. Uplink BWP switching may be controlled by a BWP instruction field included in the downlink control information. Uplink BWP switching may also be controlled based on higher-layer parameters.

[0043] In an active uplink BWP, UL-SCH may be transmitted. A PUCCH may be transmitted on the uplink BWP. A PRACH may be transmitted on the active uplink BWP. An SRS may be transmitted on the active uplink BWP.

[0044] In an inactive uplink BWP, UL-SCH does not need to be transmitted. In an inactive uplink BWP, PUCCH does not need to be transmitted. In an inactive uplink BWP, PRACH does not need to be transmitted. In an inactive uplink BWP, SRS does not need to be transmitted.

[0045] Of the one or more uplink BWPs configured for a serving cell, two or more uplink BWPs do not need to be configured as active uplink BWPs. In other words, for a serving cell that contains uplink BWPs, at least one active uplink BWP is sufficient.

[0046] The parameters of the upper layer are the parameters included in the signal of the upper layer. The signal of the upper layer may be RRC (Radio Resource Control) signaling or MAC CE (Medium Access Control Control Element). Here, the signal of the upper layer is RR The signal may be from the C layer or the MAC layer. The upper layer signal may be from a layer higher than the physical layer. The upper layer parameters provided by the RRC layer signal may be notified from the base station device 3 to the terminal device 1 and set. The upper layer parameters provided by the RRC layer signal may be called RRC parameters or RRC information elements (IE).

[0047] The upper layer signals may be common RRC signaling. Common RRC signaling may have at least some or all of the following features C1 to C3. C1) Mapped to BCCH logical channels or CCCH logical channels C2) Includes at least one ReconfigurationWithSync information element C3) Mapped to PBCH

[0048] The ReconfigurationWithSync information element may include information indicating settings commonly used in the serving cell. These commonly used settings may include at least the PRACH setting. The PRACH setting may indicate at least one or more random access preamble indices. The PRACH setting may also indicate at least the PRACH time / frequency resource.

[0049] Common RRC signaling may include at least common RRC parameters. Common RRC parameters are cell-specific parameters used commonly within a serving cell. A meter is also acceptable.

[0050] The higher-layer signals may use dedicated RRC signaling. The dedicated RRC signaling may have at least some or all of the following features D1 to D2. D1) Mapped to DCCH logical channel D2) ReconfigurationWithSync does not include information elements.

[0051] For example, MIB (Master Information Block) and SIB (System Information Block) Block) may be included in the common RRC signaling. Also, higher-layer messages that are mapped to the DCCH logical channel and contain at least a ReconfigurationWithSync information element may be included in the common RRC signaling. Also, D Higher-level messages mapped to the CCH logical channel and not containing the ReconfigurationWithSync information element may be included in dedicated RRC signaling. Note that MIB and SIB may be collectively referred to as system information.

[0052] Furthermore, a top-level parameter that includes one or more top-level parameters may be referred to as an information element (IE). Also, one or more top-level parameters, and / or a top-level parameter and / or IE that includes one or more IEs, may be referred to as a message (top-level message, RRC message), an information block (IB), or system information.

[0053] The SIB may at least indicate the SSB time index. The SIB may at least include information related to the PRACH resource. The SIB may at least include information related to the initial connection setup.

[0054] The ReconfigurationWithSync information element may include at least information related to the PRACH resource. The ReconfigurationWithSync information element may also include at least information related to the initial connection setup.

[0055] Dedicated RRC signaling may include at least dedicated RRC parameters. Dedicated RRC parameters are parameters used exclusively for terminal device 1 (UE-specific). This is also acceptable. Dedicated RRC signaling may include at least common RRC parameters.

[0056] Common RRC parameters and dedicated RRC parameters may also be referred to as higher-level parameters.

[0057] The following describes various aspects of this embodiment of physical channels and physical signals.

[0058] An uplink physical channel may correspond to a set of resource elements that carry information generated in the upper layer. An uplink physical channel is a physical channel used in the uplink carrier. In a wireless communication system according to one aspect of this embodiment, at least some or all of the following uplink physical channels are used. ·PUCCH (Physical Uplink Control CHannel) ·PUSCH (Physical Uplink Shared CHannel) ·PRACH(Physical Random Access CHannel)

[0059] PUCCH may be used to transmit uplink control information (UCI). Uplink control information includes some or all of the HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement) information corresponding to channel status information (CSI), scheduling requests (SR), and transport blocks (TB). Note that TB is MAC It may also be called a PDU (Medium Access Control Protocol Data Unit), DL-SCH (Downlink-Shared Channel), or PDSCH (Physical Downlink Shared Channel).

[0060] A PUCCH may contain multiple uplink control information of one or more types. The multiplexed PUCCH may be transmitted. That is, a PUCCH may contain multiple HARQ-ACKs, multiple CSIs, multiple SRs, HARQ-ACKs and CSIs, HARQ-ACKs and SRs, or other types of UCIs.

[0061] HARQ-ACK information may include at least HARQ-ACK bits corresponding to TB. HARQ-ACK bits are ACK (acknowledgement) or corresponding to TB. A NACK (negative-acknowledgement) may be displayed. An ACK indicates that the decoding of the TB was successful. The value may indicate that the decoding of the TB has been completed. The NACK may indicate that the decoding of the TB has not been completed successfully. The HARQ-ACK information may include at least one HARQ-ACK codebook containing one or more HARQ-ACK bits. The HARQ-ACK bits corresponding to one or more TBs may correspond to a PDSCH containing the one or more TBs.

[0062] The HARQ-ACK bit may indicate an ACK or NACK corresponding to one CBG (Code Block Group) contained in the TB. The HARQ-ACK may also be referred to as HARQ feedback, HARQ information, or HARQ control information.

[0063] The SR may be used to request PUSCH resources for an initial transmission. The SR may also be used to request UL-SCH resources for a new transmission. The SR bit may be used to indicate either a positive SR or a negative SR. When the SR bit indicates a positive SR, this may also be referred to as "a positive SR is transmitted." A positive SR may indicate that terminal device 1 is requesting PUSCH resources for an initial transmission. A positive SR may indicate that the SR is triggered by a higher layer. A positive SR may be transmitted if the higher layer instructs it to transmit an SR. When the SR bit indicates a negative SR, this may also be referred to as "a negative SR is transmitted." A negative SR may indicate that terminal device 1 is not requesting PUSCH resources for an initial transmission. A negative SR may indicate that the SR is not triggered by a higher layer. A negative SR may be transmitted if the higher layer does not instruct it to transmit an SR.

[0064] The SR bit may be used to indicate either a positive SR or a negative SR for one or more SR configurations. Each of these SR configurations may correspond to one or more logical channels. A positive SR for an SR configuration may correspond to one or all of the one or more logical channels corresponding to that SR configuration. A negative SR may not correspond to any particular SR configuration. The indication of a negative SR may mean that a negative SR is indicated for all SR configurations.

[0065] The SR setting may also be an SR-ID (Scheduling Request ID). The SR-ID is: This may be given by parameters in the higher layers.

[0066] The CSI may include at least some of the Channel Quality Index (CQI), Precoder Matrix Index (PMI), and Rank Index (RI). The CQI is an index related to channel quality (e.g., propagation strength), the PMI is an index indicating the precoder, and the RI is an index indicating the transmit rank (or transmit layer number).

[0067] The CSI may be given based at least on receiving a physical signal (e.g., CSI-RS) used for channel measurement. The CSI may include a value selected by terminal device 1. The CSI may be selected by terminal device 1 based at least on receiving a physical signal used for channel measurement. Channel measurement may include interference measurement. The CSI-RS may be set based on the CSI-RS setting or based on the SSB setting.

[0068] A CSI report is a report of CSI. A CSI report may include CSI Part 1 and / or CSI Part 2. CSI Part 1 may consist of at least wideband channel quality information (wideband CQI), wideband precoder matrix index (wideband PMI), and some or all of the RI. The number of bits of CSI Part 1 multiplexed to PUCCH is C The RI value may be a predetermined value regardless of the RI value of the SI report. The number of bits of CSI Part 2 multiplexed into PUCCH may be given based on the RI value of the CSI report. The rank index of the CSI report may be the value of the rank index used to calculate the CSI report. The RI of the CSI information may be the value indicated by the RI field included in the CSI report.

[0069] The set of RIs permitted in a CSI report may be some or all of 1 through 8. Alternatively, the set of RIs permitted in a CSI report may be given based at least on the higher-level parameter RankRestriction. If the set of RIs permitted in a CSI report contains only one value, the RI in the CSI report may be that single value.

[0070] Priorities may be assigned to CSI reports. The priority of a CSI report may be based on at least some or all of the settings regarding the time domain behavior (processing) of the CSI report, the type of content of the CSI report, the index of the CSI report, and / or some of the indexes of the serving cells in which the measurement of the CSI report is set.

[0071] The settings for the time-domain behavior (processing) of CSI reports may indicate whether the CSI report is performed aperiodicly, semi-persistently, or quasi-statically.

[0072] The content type of the CSI report may indicate whether or not the CSI report includes Layer 1 RSRP (Reference Signals Received Power).

[0073] Layer 1 refers to the physical layer, which may include the physical layer processing unit, wireless transmission unit, transmission unit, and / or wireless reception unit, reception unit, etc. Layers above Layer 1 include the MAC layer, RRC layer, and upper layer processing unit. For example, Layer 2 may include the MAC layer, RLC layer, PDCP layer, MAC layer processing unit, RLC layer processing unit, and PDCP layer processing unit. Layer 3 may include the RRC layer and RRC layer processing unit.

[0074] PUSCH is used at least to transmit TB (MAC PDU, UL-SCH). USCH may be used to transmit at least some or all of the TB, HARQ-ACK information, CSI, and SR. PUSCH may be used at least to transmit Random Access Message 3 (Message 3 (Msg3)) corresponding to RAR (Msg2) and / or RAR Grant in the Random Access Procedure. Note that TB may correspond to both the uplink and the downlink, respectively. That is, PUSCH may be used to transmit TB for the uplink. PDSCH may be used to transmit TB for the downlink.

[0075] PRACH is used at least to send the random access preamble (random access message 1, message 1 (Msg1)). PRACH is used for the initial connection establishment procedure, handover procedure, connection re-establishment procedure, and initial access procedure. The random access preamble may be used to indicate, at least, some or all, of the synchronization (timing adjustment) for the transmission of PUSCH and the request for resources for PUSCH. The random access preamble may be used to notify the base station device 3 of an index (random access preamble index) provided by the upper layer of terminal device 1.

[0076] The random access preamble may be given by cyclically shifting the Zadoff-Chu sequence corresponding to the physical root sequence index u. The doff-Chu sequence may be generated based on the physical root sequence index u. Multiple random access preambles may be defined in a single serving cell. The random access preamble may be identified at least based on the index of the random access preamble. Different random access preambles corresponding to different indices of the random access preamble may correspond to different combinations of the physical root sequence index u and the cyclic shift. The physical root sequence index u and the cyclic shift may be given at least based on information contained in the system information. The physical root sequence index u may be an index that identifies the sequence contained in the random access preamble. The random access preamble may be identified at least based on the physical root sequence index u.

[0077] In Figure 1, the following uplink physical signals are used in uplink wireless communication. Uplink physical signals do not necessarily have to be used to transmit information output from higher layers, but they are used by the physical layer. ·UL DMRS(UpLink Demodulation Reference Signal) ·SRS(Sounding Reference Signal) ·UL PTRS(UpLink Phase Tracking Reference Signal)

[0078] UL DMRS is related to the transmission of PUSCH and / or PUCCH. DMRS is multiplexed with PUSCH or PUCCH. Base station equipment 3 may use UL DMRS to correct the propagation path of PUSCH or PUCCH. Hereinafter, transmitting PUSCH and the UL DMRS associated with it will be simply referred to as "transmitting PUSCH." Hereinafter, transmitting PUCCH and the UL DMRS associated with it will be simply referred to as "transmitting PUCCH." The UL DMRS associated with PUSCH is also referred to as UL DMRS for PUSCH. The UL DMRS associated with PUCCH is also referred to as UL DMRS for PUCCH.

[0079] The SRS does not have to be associated with the transmission of PUSCH or PUCCH. The base station device 3 may use the SRS to measure the channel status. The SRS may be transmitted at the end of a subframe in an uplink slot, or in a predetermined number of OFDM symbols from the end.

[0080] UL PTRS may be a reference signal used for phase tracking. UL PTRS may be associated with a UL DMRS group that includes at least one antenna port used for one or more UL DMRSs. The association between UL PTRS and a UL DMRS group may mean that some or all of the antenna ports of the UL PTRS and some of the antenna ports included in the UL DMRS group are QCLs. UL DMRS groups may be identified based at least on the antenna port with the smallest index among the UL DMRS included in the UL DMRS group. UL PTRS may be mapped to the antenna port with the smallest index among one or more antenna ports to which a codeword is mapped. UL PTRS may be mapped to the first layer if a codeword is mapped to at least the first and second layers. UL PTRS may not be mapped to the second layer. The index of the antenna port to which UL PTRS is mapped may be given based at least on downlink control information.

[0081] In Figure 1, the following downlink physical channels are used in the downlink wireless communication from base station device 3 to terminal device 1. The downlink physical channels are used by the physical layer to transmit information output from the higher layers. ·PBCH(Physical Broadcast Channel) ·PDCCH (Physical Downlink Control Channel) ·PDSCH(Physical Downlink Shared Channel)

[0082] A PBCH is used to transmit an MIB and / or a PBCH payload. The PBCH payload may include at least information indicating an index related to the SSB transmission timing (SSB occasion). The PBCH payload may include information related to the SSB identifier (index). The PBCH may be transmitted based on a predetermined transmission interval. The PBCH may be transmitted at 80 millisecond (ms) intervals. The PBCH may be transmitted at 160 ms intervals. The contents of the information contained in the PBCH may be updated every 80 ms. Some or all of the information contained in the PBCH may be updated every 160 ms. The PBCH may consist of 288 subcarriers. The PBCH may consist of 2, 3, or 4 OFDM symbols. The MIB may include information related to the SSB identifier (index). The MIB may include information indicating at least part of the slot number, subframe number, and / or radio frame number to which the PBCH is transmitted.

[0083] PDCCH is used at least for transmitting downlink control information (DCI). PDCCH may transmit with at least DCI. PDCCH may transmit with DCI. DCI may also be called DCI format. DCI may indicate at least either a downlink grant or an uplink grant. The DCI format used for scheduling PDSCH may also be called downlink DCI format and / or downlink grant. The DCI format used for scheduling PUSCH may also be called uplink DCI format and / or uplink grant. Downlink grant may also be called downlink assignment or downlink allocation. The uplink DCI format includes part or all of DCI format 0_0 and DCI format 0_1.

[0084] The downlink DCI format includes DCI format 1_0, and parts or all of DCI format 1_1, DCI format 1_2, and DCI format 1_3.

[0085] DCI format 1_1, DCI format 1_2, and DCI format 1_3 may be configured to include a Transmission configuration indication field. The Transmission Configuration Indication field may be 0 bits if the upper-layer parameter tci-PresentInDCI is not enabled. Otherwise, it should be 3 bits. It may be set to "T".

[0086] DCI format 2 may include parameters used for PUSCH or PUCCH transmit power control. DCI format 2 includes some or all of DCI format 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3, DCI format 2_4, DCI format 2_5, DCI format 2_6, DCI format 2_7, DCI format 2_8, and DCI format 2_9.

[0087] DCI format 2_9 may be used to activate or deactivate the cell DTX / DRX settings of one or more serving cells for one or more UEs. I format 2_9 is transmitted with a scrambled CRC by NES-RNTI. Good. DCI Format 2_9 consists of some or all of the following information: • Block number • Cell DTX / DRX indication

[0088] In various embodiments of this model, unless otherwise specified, the number of resource blocks (RBs) indicates the number of resource blocks in the frequency domain. The resource block index is assigned in ascending order, from resource blocks mapped to lower frequency domains to those mapped to higher frequency domains. Furthermore, "resource block" is a general term encompassing both common resource blocks and physical resource blocks.

[0089] A single physical channel may be mapped to a single serving cell. A single physical channel may be mapped to a single CBP configured on a single carrier contained within a single serving cell.

[0090] Terminal device 1 is provided with one or more control resource sets (CORESETs). Terminal device 1 monitors PDCCH in one or more CORESETs.

[0091] CORESET may represent a time-frequency domain to which one or more PDCCHs may be mapped. CORESET may also represent a domain in which terminal device 1 monitors PDCCHs. CORESET may consist of localized resources. CORESET may consist of distributed resources.

[0092] In the frequency domain, the unit of CORESET mapping may be resource blocks (RBs). For example, in the frequency domain, the unit of CORESET mapping may be 6 resource blocks. That is, CORESET's frequency domain mapping may be performed as 6RB × n (where n is 1, 2, ...). In the time domain, the unit of CORESET mapping may be OFDM symbols. For example, in the time domain, the unit of CORESET mapping may be one OFDM symbol.

[0093] The frequency domain of CORESET may be given based on the signals of the upper layers and / or DCI.

[0094] The time domain of CORESET may be given based on the signals of the upper layers and / or DCI.

[0095] A CORESET may be a Common CORESET. A Common CORESET may be a CORESET that is set in common for multiple terminal devices 1. A Common CORESET may be based on at least some or all of the MIB, SIB, common RRC signaling, and cell IDs. For example, the time resources and / or frequency resources of a CORESET set to monitor the PDCCH used for scheduling the SIB may be based on at least the MIB.

[0096] A CORESET may also be a Dedicated CORESET. A dedicated CORESET may be a CORESET configured to be used exclusively for terminal device 1. A dedicated CORESET may be provided at least on the basis of dedicated RRC signaling.

[0097] The set of candidate PDCCHs monitored by terminal device 1 is defined in terms of the search area. This may also be the case. In other words, the set of PDCCH candidates monitored by terminal device 1 may be given by the search area.

[0098] The search region may consist of one or more PDCCH candidates with one or more aggregation levels (AL). The aggregation level of a PDCCH candidate may indicate the number of CCEs that constitute the PDCCH.

[0099] Terminal device 1, in a slot where DRX (Discontinuous reception) is not set. At least one or more search spaces may be monitored. DRX may be provided based at least on parameters of the upper layer. Terminal device 1 may monitor at least one or more search space sets in slots where DRX is not set.

[0100] A search space set may consist of at least one or more search spaces. The type of the search space set is type 0PDCCH common search space. It may be any of the following: Type 0 APDCCH common search region, Type 1 PDCCH common search region, Type 2 PDCCH common search region, Type 3 PDCCH common search region, and / or UE individual PDCCH search region.

[0101] The Type 0 PDCCH Common Search Area, Type 0 APDCCH Common Search Area, Type 1 PDCCH Common Search Area, Type 2 PDCCH Common Search Area, and Type 3 PDCCH Common Search Area may also be referred to as CSS (Common Search Space). UE Individual PDCC The H search area may also be referred to as USS (UE specific Search Space).

[0102] Each of the search area sets may be associated with one control resource set. Each of the search area sets may be contained in at least one control resource set. Each of the search area sets may be given an index of the control resource set associated with that search area set.

[0103] The upper-level parameter SearchSpace sets one or more search areas as a single set. It may be used for one or more searches set up by this SearchSpace. The region may also be called the search region set.

[0104] The Type 0 PDCCH Common Search Area may be used for DCI formats with a CRC (Cyclic Redundancy Check) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier). The setting of the Type 0 PDCCH Common Search Area may be based on at least 4 bits of the LSB (Least Significant Bits) of the upper-layer parameter PDCCH-ConfigSIB1. The upper-layer parameter PDCCH-ConfigSIB1 may be included in the MIB. The setting of the Type 0 PDCCH Common Search Area may be based on at least the upper-layer parameter SearchSpaceZero. The interpretation of the bits of the upper-layer parameter SearchSpaceZero may be the same as the interpretation of the 4 bits of the LSB of the upper-layer parameter PDCCH-ConfigSIB1. The setting of the Type 0 PDCCH Common Search Area may be based on at least the upper-layer parameter SearchSpaceSIB1. The upper-layer parameter SearchSpaceSIB1 may be included in the upper-layer parameter PDCCH-ConfigCommon. PDCCHs detected in the Type 0 PDCCH common search area may be used at least for scheduling PDCCHs transmitted with SIB1. SIB1 is a type of SIB. SIB1 may contain scheduling information for SIBs other than SIB1. Terminal device 1 may receive the upper layer parameter PDCCH-ConfigCommon in EUTRA. Terminal device 1 receives the upper layer parameter PDCCH-ConfigCommon in MCG. It may receive. These common search areas may be referred to as the type 0PDCCHCSS set.

[0105] The Type 0 APDCCH common search area is scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier) ​​CRC (Cyclic Redundancy). It may be used at least for DCI formats with Check) sequences. The setting of the type 0aPDCCH common search area may be given based at least on the upper layer parameter SearchSpaceOtherSystemInformation. The upper layer parameter SearchSpaceOtherSystemInformation may be included in SIB1. The upper layer parameter SearchSpaceOtherSystemInformation may be included in the upper layer parameter PDCCH-ConfigCommon. PDCCHs found in the type 0PDCCH common search area may be used at least for scheduling PDCCHs that are sent containing SIBs other than SIB1. These common search areas may be referred to as the type 0APDCCHCSS set.

[0106] The Type 1 PDCCH common search region is a CRC sequence scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) ​​and / or by TC-RNTI (Temporary Common-Radio Network Temporary Identifier). It may be used for the DCI format with a scrambled CRC sequence. RA-RNTI may be provided based on at least the time / frequency resources of the random access preamble transmitted by terminal device 1. TC-RNTI may be provided by a PDSCH (also referred to as Random Access Message 2, Message 2 (Msg2), or Random Access Response (RAR)) scheduled by the DCI format with a CRC sequence scrambled by RA-RNTI. The Type 1 PDCCH common search area may be provided based on at least the upper layer parameter ra-SearchSpace. The upper layer parameter ra-SearchSpace may be included in SIB1. The upper layer parameter ra-SearchSpace may be included in the upper layer parameter PDCCH-ConfigCommon. These common search areas may be referred to as the Type 1 PDCCHCSS set.

[0107] The Type 2PDCCH common search area may be used for the DCI format with a CRC sequence scrambled by P-RNTI (Paging-Radio Network Temporary Identifier). P-RNTI may be used at least for transmitting the DCI format containing information notifying of SIB changes. The Type 2PDCCH common search area may be provided at least based on the upper layer parameter PagingSearchSpace. Upper layer The parameter PagingSearchSpace may be included in SIB1. The parameter PagingSearchSpace of the higher layer may be included in the parameter PDCCH-ConfigCommon of the higher layer. These common search areas may be referred to as the type 2PDCCHCSS set.

[0108] The Type 3 PDCCH common search region is for the DCI format with a CRC sequence scrambled by C-RNTI (Cell-Radio Network Temporary Identifier). It may be used. C-RNTI may be provided based at least on PDSCH (Random Access Message 4, Message 4 (Msg4), or Contention Resolution) scheduled in DCI format with a CRC sequence scrambled by TC-RNTI. The Type 3 PDCCH common search area may be a set of search areas provided when the upper-level parameter SearchSpaceType is set to common. These common search areas may be referred to as the Type 3 PDCCH CSS set.

[0109] The UE-specific PDCCH search regions may be used for the DCI format with a CRC sequence scrambled by C-RNTI. These UE-specific search regions may be referred to as PDCCHUSS sets.

[0110] If a C-RNTI is provided to terminal device 1, the Type 0 PDCCH common search area, the Type 0 APDCCH common search area, the Type 1 PDCCH common search area, and / or the Type 2 PDCCH common search area may be used for the DCI format with the CRC sequence scrambled with the C-RNTI.

[0111] When C-RNTI is provided to terminal device 1, the search area set provided based on at least one of the upper layer parameters PDCCH-ConfigSIB1, SearchSpaceZero, SearchSpaceSIB1, SearchSpaceOtherSystemInformation, ra-SearchSpace, PagingSearchSpace, or SearchSpace may be used for the DCI format with the CRC sequence scrambled by C-RNTI.

[0112] A common coreset may include at least one or both of CSS and USS. A dedicated coreset may include at least one or both of CSS and USS.

[0113] The physical resources in the search area are composed of Control Channel Elements (CCEs). A CCE is composed of six Resource Element Groups (REGs). A REG may consist of one OFDM symbol in one Physical Resource Block (PRB). In other words, a REG may consist of 12 Resource Elements (REs). A PRB may also simply be called a Resource Block (RB).

[0114] PDSCH may be used at least to transmit TB. It may also be used at least to transmit Random Access Message 2 (RAR, Msg2). Furthermore, PDSCH may be used at least to transmit system information, including parameters used for initial access.

[0115] In Figure 1, the following downlink physical signals are used in downlink wireless communication. Downlink physical signals do not necessarily have to be used to transmit information output from higher layers, but they are used by the physical layer. ·Synchronization signal ·DL DMRS(DownLink DeModulation Reference Signal) ·CSI-RS(Channel State Information-Reference Signal) ·DL PTRS(DownLink Phase Tracking Reference Signal) ·TRS(Tracking Reference Signal)

[0116] The synchronization signal is used by terminal device 1 to synchronize the downlink in the frequency domain and / or time domain. The synchronization signal includes PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal).

[0117] An SSB (SS / PBCH block) consists of at least some or all of a PSS, SSS, and PBCH. The antenna ports of some or all of the PSS, SSS, and PBCH included in the SS block may be identical. Some or all of the PSS, SSS, and PBCH contained within the SSB may be mapped to consecutive OFDM symbols. The CP settings for some or all of the PSS, SSS, and PBCH contained within the SSB may be the same. The same value may be applied to the SCS setting μ for some or all of the PSS, SSS, and PBCH contained within the SSB.

[0118] DL DMRS is associated with the transmission of PBCH, PDCCH, and / or PDSCH. DL DMRS is multiplexed to PBCH, PDCCH, and / or PDSCH. Terminal device 1 may use the PBCH, PDCCH, or DL ​​DMRS corresponding to the PBCH, PDCCH, or PDSCH to perform propagation path correction for the PBCH, PDCCH, or PDSCH. Hereinafter, when a PBCH and its associated DL DMRS are transmitted together, it may be referred to as a PBCH being transmitted. When a PDCCH and its associated DL DMRS are transmitted together, it may simply be referred to as a PDCCH being transmitted. When a PDSCH and its associated DL DMRS are transmitted together, it may simply be referred to as a PDSCH being transmitted. DL DMRS associated with a PBCH may also be referred to as a DL DMRS for PBCH. DL DMRS associated with a PDSCH may also be referred to as a DL DMRS for PDSCH. DL DMRS associated with PDCCH may also be referred to as DL DMRS associated with PDCCH.

[0119] DL DMRS may be a reference signal individually configured on terminal device 1. The DL DMRS sequence may be given based on at least parameters individually configured on terminal device 1. The DL DMRS sequence may be given based on at least UE-specific values ​​(e.g., C-RNTI). DL DMRS may be transmitted separately for PDCCH and / or PDSCH.

[0120] CSI-RS may be a signal used at least to calculate CSI. CSI-RS may also be used to measure RSRP (Reference Signal Received Power) and RSRQ (Reference Signal Received Quality). The CSI-RS pattern assumed by terminal device 1 may be given at least by higher-level parameters.

[0121] PTRS may be a signal used at least for phase noise compensation. The PTRS pattern assumed by terminal device 1 may be given at least based on higher layer parameters and / or DCI.

[0122] A DL PTRS may be associated with a DL DMRS group that includes at least one antenna port used by a DL DMRS. The association between a DL PTRS and a DL DMRS group may be such that at least some or all of the antenna ports of the DL PTRS and the antenna ports included in the DL DMRS group are QCLs. A DL DMRS group may be identified based at least on the antenna port with the smallest index among the DL DMRS included in the DL DMRS group.

[0123] The TRS may be a signal used at least for time and / or frequency synchronization. The TRS pattern assumed by the terminal device may be given at least based on higher-layer parameters and / or DCI.

[0124] Downlink physical channels and downlink physical signals may also be referred to as downlink signals. Uplink physical channels and uplink physical signals may also be referred to as uplink signals. Downlink signals and uplink signals may be collectively referred to as physical signals or signals. Downlink physical channels and uplink physical channels may be collectively referred to as physical channels. It may also be called a channel. In a downlink, the physical signal may include some or all of SSB, PDCCH (CORESET), PDSCH, DL DMRS, CSI-RS, DL PTRS, and TRS. In an uplink, the physical signal may include some or all of PRACH, PUCCH, PUSCH, UL DMRS, UL PTRS, and SRS. The physical signal may also be a signal other than those described above. In other words, the physical signal may include one or more types of physical channels and / or physical signals, or one or more physical channels and / or physical signals.

[0125] BCH (Broadcast Channel), UL-SCH (Uplink-Shared Channel), and DL-SCH (Downlink-Shared Channel) are transport channels. Media access The channels used in the control (MAC) layer may also be called transport channels. The unit of transport channels used in the MAC layer may also be called TB or MAC PDU. In the MAC layer, HARQ control is performed for each TB. TB is the unit of data that the MAC layer delivers to the physical layer. In the physical layer, TB is a codeword. It is mapped to a code word, and modulation processing is performed for each code word.

[0126] The base station device 3 and the terminal device 1 exchange (send and receive) higher layer signals at the higher layer. For example, the base station device 3 and the terminal device 1 may send and receive RRC signaling (RRC messages, RRC information, RRC parameters, RRC information elements) at the Radio Resource Control (RRC) layer. Also, the base station device 3 and the terminal device 1 may send and receive MAC CE (Control Element) at the MAC layer. Here, RRC signal The ring, and / or MAC CE, is also referred to as higher layer signaling.

[0127] PUSCH and PDSCH may be used at least to transmit RRC signaling and / or MAC CE. Here, the RRC signaling transmitted by PDSCH from base station 3 may be a common signaling to multiple terminal devices 1 within a serving cell. A common signaling to multiple terminal devices 1 within a serving cell may also be called a common RRC signaling. The RRC signaling transmitted by PDSCH from base station 3 may be a dedicated signaling (also called dedicated signaling or UE specific signaling) to a particular terminal device 1. A dedicated signaling to a terminal device 1 may also be called a dedicated RRC signaling. Upper layer parameters specific to a serving cell may be transmitted using a common signaling to multiple terminal devices 1 within a serving cell, or using a dedicated signaling to a particular terminal device 1. Upper layer parameters specific to a UE may be transmitted using a dedicated signaling to a particular terminal device 1.

[0128] BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), Furthermore, DCCH (Dedicated Control Channel) is a logical channel. For example, BCCH is a higher-layer channel used to transmit MIBs. CCCH (Common Control Channel) is a higher-layer channel used to transmit common information among multiple terminal devices 1. Here, CCCH may be used, for example, for terminal devices 1 that are not connected via RRC. DCCH (Dedicated Control Channel) is a higher-layer channel used to transmit dedicated control information to terminal devices 1. Here, DCCH may be used, for example, for terminal devices 1 that are connected via RRC.

[0129] BCCH in the logical channel may be mapped to BCH, DL-SCH, or UL-SCH in the transport channel. CC in the logical channel CH may be mapped to DL-SCH or UL-SCH in the transport channel. DCCH in the logical channel may be mapped to DL-SCH or UL-SCH in the transport channel.

[0130] UL-SCH in the transport channel may be mapped to PUSCH in the physical channel. DL-SCH in the transport channel may be mapped to PDSCH in the physical channel. BCH in the transport channel may be mapped to PBCH in the physical channel.

[0131] The following describes an example of the configuration of a terminal device 1 according to one aspect of this embodiment.

[0132] Figure 4 is a schematic block diagram showing the configuration of a terminal device 1 according to one aspect of this embodiment. As shown in the figure, the terminal device 1 is composed of a wireless transceiver unit 10 and a higher layer processing unit 14. The wireless transceiver unit 10 includes an antenna unit 11, an RF (Radio Frequency) unit 12, and The upper layer processing unit 14 comprises at least a part or all of the baseband section 13. The upper layer processing unit 14 comprises at least a part or all of the media access control layer processing unit 15 and the wireless resource control layer processing unit 16. The wireless transceiver 10 may also be referred to as the transmitting unit, receiving unit, physical layer processing unit, and / or lower layer processing unit.

[0133] The upper layer processing unit 14 outputs the uplink data (TB, UL-SCH) generated by user operations, etc., to the wireless transceiver unit 10. The upper layer processing unit 14 performs processing at the MAC layer, Packet Data Integration Protocol (PDCP) layer, Wireless Link Control (RLC) layer, and RRC layer.

[0134] The media access control layer processing unit 15, which is part of the upper layer processing unit 14, performs MAC layer processing.

[0135] The wireless resource control layer processing unit 16, located within the upper layer processing unit 14, performs RRC layer processing. The wireless resource control layer processing unit 16 manages various setting information / parameters of its own device. The wireless resource control layer processing unit 16 sets various setting information / parameters based on the upper layer signals received from the base station device 3. That is, the wireless resource control layer processing unit 16 sets various setting information / parameters based on information indicating the various setting information / parameters received from the base station device 3. These parameters may be upper layer parameters and / or information elements.

[0136] The wireless transceiver unit 10 performs physical layer processing such as modulation, demodulation, encoding, and decoding. The wireless transceiver unit 10 separates, demodulates, and decodes the received physical signal and outputs the decoded information to the upper layer processing unit 14. These processes may also be called reception processing. The wireless transceiver unit 10 generates a physical signal (uplink signal) by modulating, encoding, and generating a baseband signal (conversion to a time-continuous signal) the data and transmits it to the base station device 3. These processes may also be called transmission processing.

[0137] The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal (down-converts) by quadrature demodulation and removes unwanted frequency components. The RF unit 12 outputs the processed analog signal to the baseband unit.

[0138] The baseband section 13 converts the analog signal input from the RF section 12 into a digital signal. The baseband section 13 removes the portion corresponding to CP from the converted digital signal, and performs a Fast Fourier Transform (FFT) on the signal from which CP has been removed to extract the signal in the frequency domain.

[0139] The baseband unit 13 performs an inverse fast Fourier transform (IFFT) on the data to generate OFDM symbols, adds a CP to the generated OFDM symbols to generate a baseband digital signal, and converts the baseband digital signal into an analog signal. The baseband unit 13 outputs the converted analog signal to the RF unit 12.

[0140] The RF unit 12 uses a low-pass filter to remove unwanted frequency components from the analog signal input from the baseband unit 13, upconverts the analog signal to the carrier frequency, and transmits it via the antenna unit 11. The RF unit 12 also amplifies the power. The RF unit 12 may also have a function to control the transmission power. The RF unit 12 is also referred to as the transmission power control unit.

[0141] The following describes an example of the configuration of a base station device 3 according to one aspect of this embodiment.

[0142] Figure 5 is a schematic block diagram showing the configuration of a base station device 3 according to one aspect of this embodiment. As shown in the figure, the base station device 3 is composed of a wireless transceiver unit 30 and a higher layer processing unit 34. The wireless transceiver unit 30 is composed of an antenna unit 31, an RF unit 32, and a baseband unit 33. The higher layer processing unit 34 is composed of a media access control layer processing unit 35 and a wireless resource control layer processing unit 36. The wireless transceiver unit 30 is also referred to as the transmitting unit, receiving unit, or physical layer processing unit.

[0143] The upper layer processing unit 34 performs processing for the MAC layer, PDCP layer, RLC layer, and RRC layer.

[0144] The media access control layer processing unit 35, which is part of the upper layer processing unit 34, performs MAC layer processing.

[0145] The wireless resource control layer processing unit 36, located in the upper layer processing unit 34, performs RRC layer processing. The wireless resource control layer processing unit 36 ​​generates or acquires downlink data (TB, DL-SCH), system information, RRC messages, MAC CE, etc., which are placed on the PDSCH, from the upper layer node and outputs them to the wireless transceiver unit 30. The wireless resource control layer processing unit 36 ​​also manages various setting information / parameters for each terminal device 1. The wireless resource control layer processing unit 36 ​​may set various setting information / parameters for each terminal device 1 via signals from the upper layer. In other words, the wireless resource control layer processing unit 36 ​​transmits / announces information indicating various setting information / parameters.

[0146] The basic functions of the wireless transceiver 30 are the same as those of the wireless transceiver 10, so a detailed explanation is omitted. The wireless transceiver 30 transmits the physical signals it generates to the terminal device 1 (i.e., performs the transmission process). The wireless transceiver 30 also performs the reception process for the physical signals it receives.

[0147] The media access control layer processing units 15 and / or 35 may be referred to as MAC entities.

[0148] Each of the parts designated by reference numerals 10 to 16 in the terminal device 1 may be configured as a circuit. Each of the parts designated by reference numerals 30 to 36 in the base station device 3 may be configured as a circuit. Some or all of the parts designated by reference numerals 10 to 16 in the terminal device 1 may be configured as a memory and a processor connected to the memory. Some or all of the parts designated by reference numerals 30 to 36 in the base station device 3 may be configured as a memory and a processor connected to the memory. Various aspects (operations, processes) according to this embodiment may be implemented (performed) in the memory and the processor connected to the memory included in the terminal device 1 and / or the base station device 3.

[0149] In carrier aggregation (CA), two or more component carrier carriers (CCs) are aggregated. The UE, depending on its capabilities, can simultaneously receive data on one or more CCs. A UE with one timing advance capability for a CA may receive and / or transmit simultaneously on multiple CCs corresponding to multiple serving cells (multiple serving cells grouped into one TAG) that share the same timing advance. A UE with multiple timing advance capabilities for a CA may receive and / or transmit simultaneously on multiple CCs corresponding to multiple serving cells (multiple serving cells grouped into multiple TAGs) that have different timing advances. A UE that does not support CA may receive and / or transmit simultaneously on multiple CCs (serving cells). NG-RAN ensures that each TAG contains at least one serving cell. A UE that does not support CA will receive on one CC and transmit on one serving cell (one It may be sent on a single CC corresponding to only one serving cell within the TAG.

[0150] If a CA is configured, the UE has only one RRC connection to the network. During RC connection establishment / re-establishment / handover, one serving cell is NAS mobility Provide information and, in the case of RRC connection re-establishment / handover, one serving cell secure Provides a metric input. This cell is called the Primary Cell (PCell). UE capability According to the documentation, Secondary Cells (SCells) may be configured to form a set of PCells and serving cells. The set of serving cells configured for a UE consists of one PCell and one or more SCells. Reconfiguration, addition, and deletion of SCells are performed by the RRC. In the case of Intra-NR handover and reconnection from RRC_INACTIVE, the network may also add, delete, retain, or reconfigure SCells for use in the target PCell. When adding a new SCell, dedicated RRC signaling is used to transmit all system information required by the SCell. That is, during connected mode, the UE does not need to directly obtain broadcast system information from the SCell.

[0151] RRC supports the states RRC_IDLE, RRC_INACTIVE, and RRC_CONNECTED. You may do so.

[0152] SSB can be classified into Always-on SSB and On-demand SSB. In Always-on SSB, SSB may be transmitted periodically from the base station equipment. In On-demand SSB, SSB transmission is made upon request. If this occurs, the base station equipment may transmit SSB. Always-on SSB and On-demand SSB are They can be referred to as SSB without distinction.

[0153] In on-demand SSB, SSB transmission requests use UE WUS (uplink wake-up signal). It may be used, or cell on / off indication via backhaul may be used, or Scell ​​activation / deactivation signaling may be used. The method for SSB transmission requests may be called the triggering method. SSB transmission in On-demand SSB The request may be called an SSB transmission request, an SS / PBCH block request, an SSB trigger, or an On-demand SSB trigger. On-demand SSB may be an operation in SCell.

[0154] An SSB transmission (SSB burst) triggered by an On-demand SSB in SCell may behave as follows: The UE receives On-demand SSBs periodically from a first timing... The UE may assume that On-demand SSB is transmitted periodically from a first timing until the gNB turns off On-demand SSB transmission. On-demand SSB is transmitted between the first timing and the second timing, and after the second timing... It can be assumed that no On-demand SSB will be sent from here on. The UE will then... On-demand SSB is sent N times, and after N On-demand SSBs have been sent, On-demand SSB is It may be assumed that it will not be transmitted. The UE transmits On-demand SSB periodically between the first timing and the second timing, and then transmits On-demand SSB at other transmission cycles after the second timing. It may be assumed that SSB will be transmitted. Note that an SSB transmission (SSB burst) may contain one or more SS / PBCH blocks.

[0155] In a cell that supports On-demand SSB in SCell, Always-on SSB is not transmitted. It is permissible. In cells that support On-demand SSB in SCell, Always-on SSB may be transmitted periodically.

[0156] In this embodiment, the wireless transceiver 10 may include a wireless receiver, a wireless transmitter, and a processing unit. For example, the wireless receiver may perform signal reception processing, and the wireless transmitter may perform signal transmission processing. For example, the processing unit may perform information judgment and setting, and the processing unit may include processing in the upper layer processing unit 14.

[0157] In this embodiment, an Artificial Intelligence (AI) / Machine Learning (ML) model and / or AI / ML functionality may be applied. The AI / ML model outputs based on a set of inputs. A data-driven algorithm that applies AI / ML techniques to generate a set of forces. good.

[0158] AI / ML models and / or AI / ML functions are implemented on the terminal device side or the network side. Yes, that's fine. Network-side models are AI / ML models where inference is performed entirely within the network. It is acceptable for it to be a UE-side model. The UE-side model is an AI / ML model in which inference is performed entirely within the UE. stomach.

[0159] Figure 6 shows an example of an AI / ML functional framework for an NR air interface using terminal and base station equipment.

[0160] As shown in Figure 6, AI / ML functional framework for NR air interface The unit includes a Data Collection unit 601 and a Model Training unit 602. It includes a series of core functions, including the Management unit 603, the Inference unit 604, and the model storage unit 605. The functions in the data acquisition unit 601 may be called the data collection function. Functions in the model training unit 602 The function in the management unit 603 may be called the management function. The function in the inference unit 604 may be called the inference function. The function in the model storage unit 605 This can be called a model storage function.

[0161] The data collection unit 601 may have the function of providing input data to the model training unit 602, the management unit 603, and the inference unit 604. Specifically, the data collection unit 601 may provide training data to the model training unit 602. In other words, training data refers to the data necessary as input for the AI / ML model training unit 602. The data collection unit 601 may provide monitoring data to the management unit 603. In other words, monitoring data refers to the input data necessary for managing the AI / ML model and AI / ML functions. The data collection unit 601 may provide inference data to the inference unit 604. In other words, inference data refers to the data necessary for managing the AI / ML model and AI / ML functions. This refers to the data required as input.

[0162] The model training unit 602 is a function that performs training, validation, and testing of AI / ML models, and may generate model performance metrics that can be used as part of the model testing procedure. The model training unit 602 is responsible for preparing the data based on the training data provided by the data acquisition function. It may also be responsible for this. If there is a model storage unit 605, the AI / ML model that has undergone training, validation, and testing may be provided to the model storage function. Furthermore, updated versions of the AI / ML model may also be provided to the model storage function. It may be provided to the storage unit 605.

[0163] Management Unit 603 is responsible for the operation of AI / ML models and AI / ML functions (e.g., selection, deactivation, This function may oversee switching, fallback, and monitoring (e.g., performance). This function may also be responsible for making decisions to ensure appropriate inference operations based on the data received from the data acquisition unit 601 and the inference unit 604.

[0164] The inference unit 604 may be a function that takes data provided by the data acquisition unit 601 (i.e., inference data) as input and provides output from a process that applies an AI / ML model or AI / ML function. The inference unit 604 may also be responsible for preparing the data (e.g., preprocessing, cleaning, formatting, or transforming the data) based on the inference data provided by the data acquisition unit 601, as needed.

[0165] The model storage unit 605 contains trained or updated models that can be used to perform inference. It may be a function responsible for saving the created model.

[0166] In this embodiment, the functional framework shown in Figure 6 provides a general functional architecture that can be applied to both AI / ML models and AI / ML functions.

[0167] AI / ML models or AI / ML functions need to be developed, deployed, and managed throughout their entire lifecycle. This can be either lifecycle management (LCM) based on AI / ML models or LCM based on AI / ML functions.

[0168] AI / ML models may be identified by a model ID. The model ID may be a unique ID for the AI / ML model. The model ID may be a logical ID. A logical AI / ML model is a model... The ID identifies and points to the assigned model. The logical AI / ML model may be mapped to the physical AI / ML model by the implementation. In other words, the physical AI / ML model points to the actual implementation of the logical AI / ML model.

[0169] In an AI / ML model-based LCM, models are identified by a network, and the network and / or UE may activate, deactivate, select, or switch individual AI / ML models via model IDs. In this embodiment, the AI / ML model-based LCM may be referred to as a model-ID based LCM.

[0170] AI / ML functionality refers to functions defined within AI / ML-enabled functions, which are functions that utilize AI / ML. The UE may have one AI / ML model for one function, or it may have multiple AI / ML models for one function.

[0171] In AI / ML capability-based LCM, the UE may use UE capability signaling to indicate its supported capabilities to the network. This may indicate capabilities applicable for model inference. Upon receiving UE capability signaling, the network will signal AI / ML capabilities through signaling such as RRC signals, MAC CE, DCI, etc. You may indicate activation, deactivation, fallback, and / or switching. The precise AI / ML models supporting specific functions may not be identified within the network. That's fine.

[0172] In this embodiment, terminal device 1 and / or base station device 3 are spatial domain downlink AI / ML models and / or AI / ML functions may be applied to beam management, such as spatial domain downlink beam prediction and / or temporal downlink beam prediction.

[0173] Set A may be a set of beams consisting of multiple DL Tx beams. Terminal device 1 uses an AI / ML model / function to select one or more DL TX beams from the beams in Set A. Predictions may be made. One or more predicted DL TX beams can be used in AI / ML models and / or This may be a model output of a function. Also, set A may be a resource set consisting of one or more reference signal (CSI-RS or SSB) resource sets. Set B This may be a set of beams measured as input to an AI / ML model. The beams of set A and set B may be within the same frequency range.

[0174] The spatial domain downlink beam prediction may be the spatial domain downlink beam prediction of set A based on the measurement results of the beam of set B. AI / ML model training and inference are performed on the network. It may be done on the client side or on the UE side.

[0175] In spatial domain downlink beam prediction, sets A and B may be different, and set B may be a subset of set A. The AI / ML model input is L1-RSRP based on set B. Measurement only is acceptable. The AI / ML model input may be an L1-RSRP measurement based on set B and assistance information. The AI / ML model input may be a CIR based on set B. The AI / ML model input may be an L1-RSRP measurement based on set B and corresponding DL Tx and / or Rx beam IDs.

[0176] Temporal downlink beam prediction is based on past measurements of the beam in set B. This may be a temporal downlink beam prediction for A. AI / ML model training and inference may be performed on the network side or on the UE side.

[0177] In temporal downlink beam prediction, sets A and B may be different. Set B may be a subset of set A. Sets A and B may be the same. The AI / ML model input may be the measurement results of K (where K is 1 or more) of the most recent measurement instances. Here, K The measurement results for the most recent measurement instance may use L1-RSRP measurement based on set B. Alternatively, the measurement results for the K most recent measurement instances may use L1-RSRP measurement based on set B and assistance information. The measurement results for the K most recent measurement instances may use set B L1-RSRP measurements based on the corresponding DL Tx and / or Rx beam IDs may also be used.

[0178] Spatial domain downlink beam prediction aims to provide good spatial domain downlink beam performance while reducing the overhead of measurement and reference signals. Spatial domain downlink transmit beam prediction involves predicting one or more optimal beams from the beams of set A based on the measurement results of the beams of set B. In other words, set B is one or more beams from which measurements are performed as model input to an AI / ML model and / or function. It consists of downlink beams. Set A consists of numerous downlink beams. From among them, one or more downlink beams are selected for the AI / ML model and / or function. This is expected to be a Dell output.

[0179] In this embodiment, the AI / ML model and / or function for spatial domain downlink beam prediction or temporal downlink beam prediction may be a Layer 1 reference signal received power (L1-RSRP) measurement of the beam in set B. Output from the AI / ML model and / or function This represents the optimal and / or best beam of one or more predicted sets A in the AI / ML model. Training and inference may reside on the base station equipment (network) side or the UE side. In this embodiment, unless otherwise specified, it may be L1-RSRP.

[0180] Base station device 3 transmits a reference signal (e.g., CSI-RS or SSB) for a configured resource within one or more resource sets to which base station device 3 applies different spatial domain transmission filters. You may configure one or more resource sets for set B, which may also be used. Terminal device 1 may perform measurement on the configured resources. In other words, a resource set configured for set B of 1 or more may be configured for channel measurement. The above resource sets may also be used. Therefore, "1 or more set for set B" The "resource set above" and "one or more resource sets for channel measurement" may be used alternately.

[0181] In this embodiment, the base station equipment for set B (or channel measurement) One resource set configured by 3 is either a set of CSI-RS resources or an SSB resource set. It may also be a set of resources. In other words, the reference signals for each resource in set B are different. The transmission may be performed by the base station device 3 using a downlink spatial domain transmission filter. The resource set configured in set B is performed by each resource in the resource set. Terminal device 1 may be used to perform channel measurement for the measurement of constant or RSRP.

[0182] The base station device 3 may configure one or more resource sets for set A while the base station device 3 is not transmitting a reference signal (e.g., CSI-RS or SSB) for a resource in which one or more resource sets have been configured.

[0183] In this embodiment, set A and set B may be different, that is, set B is set It does not have to be a subset of A. For example, set B is a downlink wide based on SSB transmission. It may consist of a downlink wide beam. Set A is based on CSI-RS transmission. It may consist of multiple downlink narrow beams. Additionally or alternatively, set B may be a subset of set A. For example, set B may be set It may consist of a part of the downlink beam within A.

[0184] Terminal device 1 performs data acquisition, model training, management, inference, and / or model storage. The following functions may be implemented. For example, the upper layer processing unit 14 may include processing of data acquisition, model training, management, inference, and / or model storage functions. The processing of data collection, model training, management, inference, and / or model storage functions may be performed in the AI / ML processing unit. The AI / ML processing unit handles data collection, model training, management, A processing unit that performs inference and / or model storage functions, and is connected to terminal device 1. It may consist of the upper layer processing unit 14 and / or a part of the physical layer processing unit (wireless transceiver unit 10).

[0185] The base station device 3 performs data acquisition, model training, management, inference, and / or model storage The functions of the upper layer may be implemented. For example, the upper layer processing unit 34 may include processing of data acquisition, model training, management, inference, and / or model storage functions. For example, The processing of data collection, model training, management, inference, and / or model storage functions is Processing may be performed in the AI / ML processing unit. The AI / ML processing unit is a processing unit that performs data acquisition, model training, management, inference, and / or model storage functions, and is a base station device. It may consist of the upper layer processing unit 34 and / or a part of the physical layer processing unit (wireless transceiver unit 30) in 3.

[0186] Figure 7 shows an example of the downlink beam prediction process by base station device 3. Here, AI / ML inference is performed on the base station device or network side. Base station device 3 is downlink AI / ML capabilities and / or models may be applied for link beam prediction. The prediction may be referred to as network-side model inference. Terminal device 1 is required to report L1-RSRP measurements for one, more, or all beams in set B to the base station.

[0187] In S701, the base station device 3 transmits a reference signal to the terminal device 1. In S701, the base station device 3 may transmit a reference signal (SSB or CSI-RS) to the terminal device 1 on each resource configured in one or more resource sets for channel measurement. The ground station device 3 may use different spatial domain transmission filters to transmit the reference signal with different resources. The base station device 3 uses the resources set for set B, downlink Downlink beam sweeping may be performed.

[0188] In S702, the terminal device 1 performs RSRP measurement. For example, the terminal device 1 may execute channel measurement on each resource for L1-RSRP measurement. Yes.

[0189] In S703, the terminal device 1 may transmit a measurement report to the base station device 3. For example, the measurement report may be a measurement report including an L1-RSRP value or a resource indicator corresponding to L1-RSRP. The terminal device 1 needs to report the L1-RSRP measurement values of one, multiple, or all beams within set B to the base station. There is.

[0190] In S704, the base station device 3 may perform beam prediction based on AI-ML. The base station device 3 may use the measurement report notified in S703 as an input for the AI / ML inference function. The base station device 3 may apply an AI / ML model or an AI / ML function to predict one or more optimal downlink beams for the terminal device 1 based on the measurement report (i.e., the top K best transmission beams in set A).

[0191] In S705, the base station device 3 may perform subsequent transmission of signals and / or channels (e.g., CSI-RS, PDCCH, PDSCH) to the terminal device 1 based on the predicted one or more optimal downlink beams. For example, the base station device 3 may select a beam from the predicted one or more optimal beams and execute subsequent transmission with the selected beam.

[0192] FIG. 8 is a diagram showing an example of the process of downlink beam prediction by the terminal device 1. Here, the AI / ML inference is performed on the terminal device side. The terminal device 1 is for downlink beam prediction. An AI / ML function / model may be applied thereto. The prediction may be referred to as UE-side model inference. The terminal device 1 needs to report the L1-RSRP measurement values of one, multiple, or all of the beams in set B to the base station.

[0193] In S801, the base station device 3 transmits a reference signal to the terminal device 1. S801 may be the same process as S701.

[0194] In S802, the terminal device 1 performs RSRP measurement. For example, the terminal device 1 may execute channel measurement on each resource for L1-RSRP measurement as well.

[0195] In S803, the terminal device 1 may perform beam prediction based on AI-ML. The terminal device 1 may use the result of the RSRP measurement measured in S802 as an input for the AI / ML inference function. The terminal device 1 may apply an AI / ML model or an AI / ML function to predict the optimal downlink beam (i.e., the top K best transmission beams in set A).

[0196] In S804, the terminal device 1 may transmit a measurement report to the base station device 3. For example, the measurement report includes an L1-RSRP value and a resource indicator corresponding to the L1-RSRP. The terminal device 1 needs to report the L1-RSRP measurement values of one, multiple, or all of the beams in set B to the base station. Also, the terminal device 1 may transmit the result of the beam prediction based on AI / ML in S803.

[0197] In S805, the base station device 3 may transmit a subsequent signal and / or channel (e.g., CSI-RS, PDCCH, PDSCH) to the terminal device 1 based on one or more optimal downlink beams predicted by the terminal device 1. For example, the base station device 3 may select a beam from the one or more predicted optimal beams and perform the subsequent transmission with the selected beam.

[0198] Figure 9 shows the flow of information related to L1-RSRP measured in the terminal device 1 according to this embodiment. This figure shows an example of a method of knowledge.

[0199] In S901, the upper-layer processing unit 14 of terminal device 1 may receive some or all of the first parameter, the second parameter, and the third parameter. For example, in S901, terminal device 1 may receive the first parameter, the second parameter, and the third parameter. For example, in S901, terminal device 1 may receive the first parameter and the second parameter. For example, in S901, terminal device 1 may receive the first parameter and the third parameter. In S901, if the terminal device does not receive some of the parameters, processing may be performed using values ​​that the terminal device has previously held or values ​​that the terminal device has determined.

[0200] In this embodiment, the number of L1-RSRP measurements in one time instance is defined as M, and the number of CSI-RS resource indices (CRIs) in one time instance is defined as N. A time instance is defined as the time when terminal device 1 measures the L1-RSRP of each CSI-RS. The information can be related to the following: For example, a terminal device with four time instances t1, t2, t3, t4 When measuring L1-RSRP in a given time instance, the number of L1-RSRP measurements in t1 is M1, the number of L1-RSRP measurements in t2 is M2, the number of L1-RSRP measurements in t3 is M3, the number of L1-RSRP measurements in t4 is M4, and the number of L1-RSRP measurements in a given time instance may be denoted as M. For example, when a terminal device measures L1-RSRP in four time instances t1, t2, t3, and t4, the number of CSI-RS resource indices in t1 is N1. Yes, the number of CSI-RS resource indexes in t2 is N2, the number of CSI-RS resource indexes in t3 is N3, the number of CSI-RS resource indexes in t4 is N4, and the number of L1-RSRP measurements in a given time instance may be denoted as N.

[0201] The first parameter may be a parameter indicating the number M of CSI-RS resources measured in each time instance reported in a given report configuration. For example, the first parameter The parameter may include information indicating the location where M CSI-RSs are mapped. M may be the number of beams that the base station device 3 instructs the terminal device 1 to measure. For example, M is the terminal The terminal device 1 may be the number of resources available for channel measurement. For example, M may be the number of resources available for the terminal device. The value 1 may be the number of L1-RSRP measurements when measuring L1-RSRP within the measurement resource set. The measurement resource set is the resource set that terminal device 1 uses for measurement. It may be a set of . The CSI-RS resource may be the resource to which the CSI-RS is mapped. M may be set by the base station device 3. For example, M may be set by the upper layer of the base station device 3. The first parameter may be set in the upper layer.

[0202] The second parameter may be a threshold related to L1-RSRP. For example, the second parameter The meter may be a value indicating a power difference, such as X [dB]. When terminal device 1 measures L1-RSRP and obtains multiple L1-RSRP measurements, the second parameter may be a value indicating the power difference between the measured values ​​other than the maximum L1-RSRP and the maximum L1-RSRP. The second parameter is a base station The second parameter may be set by device 3. The second parameter may be set at a higher layer. For example, the second parameter may be set by the higher layer of base station device 3. This value may be set differently for each time instance.

[0203] The third parameter is the time in which the terminal device measures the L1-RSRP of each CSI-RS. The parameter Y may represent the number of chests. The time instance is determined by the terminal device's CSI-RS. This may be information regarding the time at which each L1-RSRP is measured. The third parameter is time. It can be the number of instances. For example, if the time instances are times t1, t2, t3, and t4, the third parameter can be 4, and Y can be 4. Also, the third parameter is This information may indicate the time at which the terminal device measures the L1-RSRP of each CSI-RS. For example, If the time instance is at times t1, t2, t3, and t4, the third parameter may be t1, t2, t3, and t4, or it may be t1 and t4, which are the start and end times of the time instance. Alternatively, the third parameter may be set by information indicating the time and the number of time instances. For example, if the time instance is at times t1, t2, t3, and t4, the third parameter may be time t1 and the number of time instances, 4. Y may be set by the base station device 3. For example, Y may be set by the upper layer of the base station device 3. Third parameter This can be set at a higher level.

[0204] In S902, the receiving unit of the terminal device 1 receives M CSI-RSs based on the first parameter at each time instance. For example, the receiving unit of the terminal device 1 receives M1, M2, M3, and M4 CSI-RSs at four time instances t1, t2, t3, and t4 based on the first parameter. The terminal device 1 may receive M CSI-RS resources based on the parameter that sets the M CSI-RS resources included in the first parameter.

[0205] In S903, the measuring unit of the terminal device 1 measures the L1-RSRP of each of the M CSI-RSs at each time instance. The measuring unit may be included in the physical layer processing unit. For example, the measuring unit of the terminal device 1 measures the L1-RSRP of each of M1, M2, M3, and M4 CSI-RSs at four time instances t1, t2, t3, and t4, and obtains measurement values of M1, M2, M3, and M4 L1-RSRPs respectively.

[0206] In S904, the transmitting unit of the terminal device 1 transmits uplink control information (UCI) to the base station device 3. The UCI may include at least a first field set. The first field set is Y first fields, and each of the Y first fields may indicate the number N of CSI-RS resource indexes (CRIs) at each of the Y time instances.

[0207] When a second parameter is received by the terminal device 1, in S904, a threshold related to the L1-RSRP may be set. The UCI indicates that the L1-RSRP associated with the N CSI-RS resource indexes at each time instance is included between a first value and a second value. ​​​It is acceptable. For example, UCI, in each time instance, of the M L1-RSRPs This may include N L1-RSRPs between the first and second values, N CSI-RS resource indexes (CRIs) corresponding to the N L1-RSRPs, and the number of CSI-RS resource indexes, N.

[0208] In S904, for example, if Y is set to 4 by the third parameter, the first field set may be a first field indicating the number of CSI-RS resource indices (CRI) in four time instances. When instances t1, t2, t3, and t4 are set, the first fieldset consists of four first fields. The field may consist of a field indicating the number of CSI-RS resource indexes N1 in t1, a field indicating the number of CSI-RS resource indexes N2 in t2, a field indicating the number of CSI-RS resource indexes N3 in t3, and a field indicating the number of CSI-RS resource indexes N4 in t4. In this case, N1, N2, N3, and N4 are N L1-RSRPs that are located between the first and second values ​​of the M L1-RSRPs in each time instance. RSRP may be used. In this case, the first field in time instance t1 may be N1, the first field in time instance t2 may be N2, the first field in time instance t3 may be N3, and the first field in time instance t4 may be N4. Regardless of how the third parameter is set, the value of N in the first field may be set for each time in the time instance.

[0209] The first value may be the maximum value of the M L1-RSRPs measured in S903. The second value may be the first value minus the threshold value included in the second parameter. N may be the number of L1-RSRPs between the first and second values. For example, if the terminal device measures the L1-RSRP of each of the M CSI-RSs, the number of L1-RSRPs between the first and second values ​​may be N. For example, in S903, if M is 4, the terminal device 1 measures 4 L1-RSRPs, and the measured values ​​of the L1-RSRPs are -70 [dBm], -72 [dBm], -75 [dBm], and -78 [dBm]. At this time, the first value is -70 [dBm], which is the maximum value of the four measured values. If the threshold included in parameter 2 is 5 [dB], the second value is obtained by subtracting the threshold value of 5 [dB] from the first value, -70 [dBm], resulting in -75 [dBm]. In this case, in S904, the N L1-RSRPs included in the first and second values ​​are -70 [dBm], -72 [dBm], and -75 [dBm], and N is 3. Note that in this case, -75 [dBm] does not have to be included in the N L1-RSRPs included in the first and second values, and if the value of the first value and the L1-RSRP match, that value may be excluded from the N candidates.

[0210] Thus, in Figure 9, the terminal device measures M L1-RSRPs and the measured L1-RSRPs Send the UCI information on N L1-RSRPs that are within the range of the maximum value to the threshold. That's fine.

[0211] Figure 10 shows an example of how terminal device 1 according to this embodiment notifies L1-RSRP. .

[0212] The N L1-RSRPs included in the UCI may be measured values ​​for the N L1-RSRPs. Terminal device 1 may use Figure 10 to set the Reported value corresponding to each RSRP value as the N L1-RSRPs included in the UCI. For example, if the measured values ​​of three L1-RSRPs are -70[dBm], -72[dBm], and -75[dBm], then using Figure 10, the Reported values ​​would be RSRP_87, RSRP_85, and RSRP_82, and these Reported values ​​may be set as the information for the N L1-RSRPs included in the UCI.

[0213] Figure 11 shows an example of how terminal device 1 according to this embodiment notifies L1-RSRP using differential RSRP.

[0214] The N L1-RSRPs included in the UCI use the maximum value of L1-RSRP and the N-1 power differences between that value and the maximum value. It is also possible to have it, and the maximum value is the power value expressed in dBm, and L1-RSRP other than the maximum value is the maximum L1-RSRP It may be the power difference between the maximum value and the power value expressed in dBm. Here, L1-RSRP values ​​other than the maximum value may be called differential RSRPs. For example, if the measured values ​​of the three L1-RSRPs are -70 [dBm], -72 [dBm], and -75 [dBm], the maximum value of L1-RSRP is -70 [dBm], and the differential RSRPs may be -2 [dB] and -5 [dB]. In this case, the Reported value corresponding to the RSRP value in Figure 10 is used. In this case, the information corresponding to the maximum value of -70 [dBm] may be set in RSRP_87. Also, in this case, Using the reported values ​​corresponding to the 11 difference RSRPs, the information corresponding to the differential RSRPs of -2[dB] and -5[dB] may be set in DIFFRSRP_1 and DIFFRSRP_2.

[0215] The N CRIs corresponding to L1-RSRPs included in the UCI may be indexes of CSI-RS resources corresponding to the N L1-RSRPs.

[0216] The number of CSI-RS resource indexes included in the UCI may be N. The field indicating the number of CSI-RS resource indexes N may be called the first field. A CSI-RS index (CRI) is an index of resource elements mapped to resource elements. Yes, and it may also be called the beam index.

[0217] The UCI may consist of a first part and a second part. The first part shall be at least It may include a first field. The bit size of the first field is based on the value of M. It may be determined that, for example, the bit size of the first field is log2(M). Part 2 may include at least the N L1-RSRPs and the N CRIs in Y time instances. Part 1 may be CSI Part 1. Part 2 may be CSI Part 2.

[0218] The UCI consists of two parts: the first part is the CSI-RS resource. The first part may include a first field containing the number of indexes N, and the second part may include N CRIs and N L1-RSRPs. For example, if the number of time instances Y is 4, the first part The first field included in the first part contains the number N of CSI-RS resource indexes per time instance, and the first part may contain the values ​​of N1, N2, N3, and N4. For example, the N CRIs and N L1-RSRPs included in the second part are N per time instance. The first part contains N CRIs and N L1-RSRPs, the second part contains N1 CRIs and N1 L1-RSRPs, and N2 CRI and N2 L1-RSRPs, N3 CRI and N3 L1-RSRPs, N4 CRI and N4 L1-RSRP may be included.

[0219] The UCI consists of two parts: the first part is the CSI-RS resource. The first part may include the number of indexes N, and the second part may include N CRIs, the maximum value of L1-RSRP and N-1 differential RSRPs. When using RSRP, the maximum value of the L1-RSRP and N-1 differential RSRPs included in the second part include the maximum value of the L1-RSRP and N-1 differential RSRPs for each time instance. Good. For example, the second part has the maximum value in N1 L1-RSRPs and N1-1 differential RSRPs, the maximum value in N2 L1-RSRPs and N2-1 differential RSRPs, and N3 L1-RSRPs. This may include the maximum value in L1 and N3-1 differential RSRPs, and the maximum value in N4 L1-RSRPs and N4-1 differential RSRPs.

[0220] The UCI consists of a first part and a second part, the first part may include the maximum value of L1-RSRP over Y time instances and the CRI corresponding to that maximum value of L1-RSRP. In this case, the first part is a first field containing the number N of CSI-RS resource indexes. This corresponds to the maximum value of L1-RSRP in Y time instances and the maximum value of that L1-RSRP. The second part may include the CRI. Furthermore, the second part may include N-1 differential RSRPs and the CRIs corresponding to the N-1 differential RSRPs. The first part is the maximum value of the L1-RSRP. Information indicating the time instance may be included. For example, the number of time instances Y. If it is 4, the first field is the CSI-RS resource index for each time instance. The first part may include the number of time instances N, the value of N1, the value of N2, the value of N3, the value of N4, the maximum value of L1-RSRP in Y time instances, the CRI corresponding to that maximum value of L1-RSRP, and information indicating the time instance at the maximum value of L1-RSRP. Furthermore, the second part is the differential RSRP excluding the maximum value of L1-RSRP in Y time instances. And it may be a CRI corresponding to that differential RSRP. The maximum value of L1-RSRP may be the L1-RSRP that is the maximum value among N1 L1-RSRPs, N2 L1-RSRPs, N3 L1-RSRPs, and N4 L1-RSRPs. Also, in the second part, the differential RSRP values ​​are set within the second part in the order of time indices t1, t2, t3, and t4. Good. Also, in the second part, the differential RSRP within the same time index The values ​​may be set in the order of CRI.

[0221] Furthermore, if the terminal device does not receive the third parameter in S901, UCI will be displayed in S904. The first part of the UCI may include information about time instances. For example, the information about time instances may be information indicating the time instances in which the L1-RSRP included in the UCI was measured. For example, the information about time instances may be the number of time instances Y, the time of the time instance, and the time instance It may be the start and end times of the time, or it may be time-indicating information and a time instance.

[0222] The upper layer processing unit 34 of the base station device 3 may set some or all of the first, second, and third parameters. The transmitting unit of the base station device 3 may transmit M CSI-RSs based on the first parameter. The receiving unit of the base station device 3 receives from the terminal device 1. The transmitted UCI is received. The base station device 3 may perform temporal downlink beam prediction using the L1-RSRP transmitted from terminal device 1.

[0223] Figure 12 shows the information related to L1-RSRP predicted in the terminal device 1 according to this embodiment. This figure shows an example of a notification method.

[0224] In S1201, the upper layer processing unit 14 of the terminal device 1 processes the fourth parameter and the fifth parameter. The terminal device 1 may receive some or all of the data, the sixth parameter and the seventh parameter. For example, in S1201, the terminal device 1 receives the fourth parameter, the fifth parameter and the sixth parameter The terminal device may receive the data and the seventh parameter. For example, in S1201, the terminal device 1 receives the seventh parameter. You may receive parameter 4, parameter 5, and parameter 6. If the terminal device fails to receive some parameters, it may use values ​​it has previously stored or values ​​it has determined to use for processing.

[0225] In this embodiment, we define K as the number of predicted L1-RSRP values ​​in one time instance, and N as the number of CSI-RS resource indices (CRIs) in one time instance. A time instance may be information indicating the time when terminal device 1 predicts the L1-RSRP for each CSI-RS and the predicted L1-RSRP values ​​are used. For example, when terminal device 1 calculates the predicted L1-RSRP values ​​in time instances t5, t6, and t7, the number of predicted L1-RSRP values ​​in t5 is K5, the number of predicted L1-RSRP values ​​in t6 is K6, the number of predicted L1-RSRP values ​​in t7 is K7, and the number of predicted L1-RSRP values ​​in a given time instance may be referred to as K. For example, when terminal device 1 predicts the L1-RSRP in time instances t5, t6, and t7 When calculating the value, the number of CSI-RS resource indexes in t5 is N5, the number of CSI-RS resource indexes in t6 is N6, the number of CSI-RS resource indexes in t7 is N7, and the number of L1-RSRP measurements in a given time instance may be referred to as N.

[0226] The fourth parameter may be a parameter that configures one or more CSI-RS resources. For example, the fourth parameter may include information indicating the location where one or more CSI-RS resources are mapped. The fourth parameter may be configured at a higher layer.

[0227] The fifth parameter is the number of predicted CSI-RS resources (K) reported in a given report configuration. The parameter may be one that indicates the following. K may be set by the base station device 3. For example, K may be set by the upper layer of the base station device 3. The fifth parameter may be set by the base station device 3. For example, the fifth parameter may be set by the upper layer of the base station device 3.

[0228] The sixth parameter is Y, the number of time instances used to predict the L1-RSRP for each CSI-RS. The parameter may be one that indicates the number of time instances. For example, terminal device 1 predicts the L1-RSRP values ​​in time instances t5, t6, and t7. When calculating, the sixth parameter is 3, and Y may be 3. The 't' parameter may be information indicating the time when the terminal device predicts the L1-RSRP for each CSI-RS and the predicted value of the L1-RSRP is used. For example, when terminal device 1 calculates the predicted value of the L1-RSRP in time instances t5, t6, and t7, the sixth parameter may be t5, t6, and t7, and time i The start and end times of the instance, t5 and t7, may be the same. The sixth parameter may be set with information indicating the time and the number of time instances. For example, if the time instances are times t5, t6, and t7, the sixth parameter may be time t5 and the number of time instances, 3. Y may be set by the base station device 3. For example, Y is set by the base station The sixth parameter may be set by the upper layer of device 3.

[0229] The seventh parameter may be a threshold related to L1-RSRP. For example, the seventh parameter The meter may be a value indicating a power difference, such as X[dB]. When terminal device 1 predicts L1-RSRP and multiple predicted L1-RSRP values ​​are obtained, the seventh parameter may be a value indicating the power difference between the predicted L1-RSRP values ​​other than the maximum value and the maximum value of L1-RSRP. The seventh parameter is a base station. The seventh parameter may be set by device 3. The seventh parameter may be set in a higher layer. For example, the seventh parameter may be set by the higher layer of base station device 3. The seventh parameter may have a different value set for each time instance.

[0230] In S1202, the receiving unit of terminal device 1, in each time instance, The terminal device 1 receives one or more CSI-RS based on the parameters of the fourth parameter. The terminal device 1 may also receive CSI-RS resources based on the parameters that configure one or more CSI-RS resources included in the fourth parameter.

[0231] In S1203, the measurement unit of terminal device 1 performs the following in each time instance: Alternatively, the L1-RSRP of each of the multiple CSI-RSs may be measured. The measurement unit may be included in the physical layer processing unit. For example, if four CSI-RS resources are configured in a given time instance, Terminal device 1 measures the L1-RSRP for each of the four CSI-RS resources and obtains the measured values ​​for the four L1-RSRPs.

[0232] In S1204, terminal device 1 predicts K L1-RSRPs from the measured L1-RSRPs in each time instance. Terminal device 1 may perform temporal downlink beam prediction using the measured L1-RSRPs measured in S1203. Temporal downlink beam prediction may be performed using the measured L1-RSRP values ​​and past L1-RSRP values. The L1-RSRP predicted in S1204 is referred to as the predicted L1-RSRP. good.

[0233] In S1205, the transmitting unit of terminal device 1 transmits uplink control information (UCI) to base station device 3. The UCI may include at least a first field set. A set consists of Y first fields, and each of the Y first fields is each Y The number N of CSI-RS resource indices (CRIs) in each time instance may be expressed.

[0234] If the sixth parameter is received in terminal device 1, a threshold for L1-RSRP may be set in S1205. In each time instance, the UCI includes L1-RSRP associated with N CSI-RS resource indices between the third and fourth values. It is acceptable. For example, UCI has K predicted L1-RSRPs in each time instance. This includes N L1-RSRPs that fall between the third and fourth values, N CSI-RS resource indexes (CRIs) corresponding to the N L1-RSRPs, and the number of CSI-RS resource indexes, N. stomach.

[0235] In S1205, for example, if Y is set to 3 by the seventh parameter, the first function The fieldset is the number of CSI-RS resource indices (CRIs) in three time instances, which may be N5, N6, and N7, respectively. For example, if time instances t5, t6, and t7 are set in the seventh parameter, the first fieldset is the three first fields. It consists of a field and may include the number of CSI-RS resource indexes N5 in t5, the number of CSI-RS resource indexes N6 in t6, and the number of CSI-RS resource indexes N7 in t7. In this case, N5, N6, and N7 may be N L1-RSRPs that fall between the first and second values ​​of K L1-RSRPs in each time instance. In this case, the first field in time instance t5 may be N5, the first field in time instance t6 may be N6, and the first field in time instance t7 may be N7. Regardless of how the seventh parameter is set, the value of N in the first field may be set for each time in the time instance.

[0236] The third value may be the maximum value of the predicted L1-RSRP predicted in S1204. The fourth value may be the third value minus the threshold value. N is the third value and the fourth value. This may be the number of predicted L1-RSRPs included in between. For example, terminal device 1 has K predicted L1-RSRPs. If we maintain this, the number of predicted L1-RSRP values ​​between the third value and the fourth value may be N.

[0237] In S1205, the threshold value may be the value shown by the fifth parameter. The fifth parameter may be set by the base station device 3. The fifth parameter may be set at a higher layer. For example, the fifth parameter may be set by the higher layer of the base station device 3. The fifth parameter may also be a value pre-set by the terminal device.

[0238] Thus, in Figure 12, the terminal device predicts K L1-RSRPs and the most predicted L1-RSRPs Send the UCI information on N L1-RSRPs that are within the range of the maximum value to the threshold. That's good too.

[0239] The method for configuring the N L1-RSRPs included in the UCI is the same as for S904, and the RSRPs are as shown in Figure 10. You may use either the notification method or the notification method using differential RSRP as shown in Figure 11.

[0240] The N L1-RSRPs included in the UCI may be N predicted L1-RSRPs. Terminal device 1 may set the Reported value corresponding to each RSRP value using Figure 10 as the N L1-RSRPs included in the UCI. For example, if the three predicted L1-RSRPs are -70[dBm], -72[dBm], and -75[dBm], then using Figure 10, the Reported values ​​would be RSRP_87, RSRP_85, and RSRP_82 respectively. These reported values ​​may be set as information for N L1-RSRPs included in the UCI. .

[0241] The N L1-RSRPs included in the UCI use the maximum value of L1-RSRP and the N-1 power differences between that value and the maximum value. It is also possible to have it, and the maximum value is the power value expressed in dBm, and L1-RSRP other than the maximum value is the maximum L1-RSRP It may be the power difference between the maximum value and the power value expressed in dBm. Here, L1-RSRP values ​​other than the maximum value may be called differential RSRPs. For example, three predicted L1-RSRPs are -70 [dBm], -72 [dBm]. If the value is -75 [dBm], the maximum value of L1-RSRP is -70 [dBm], and the differential RSRP may be -2 [dB] and -5 [dB]. In this case, the information corresponding to the maximum value of -70 [dBm] may be set in RSRP_87 using the Reported value corresponding to the RSRP value in Figure 10. Also, in this case, Figure 11 Using the reported value corresponding to the difference RSRP, the information corresponding to the differential RSRPs of -2[dB] and -5[dB] may be set in DIFFRSRP_1 and DIFFRSRP_2.

[0242] The N CRIs corresponding to L1-RSRPs included in the UCI may be indexes of CSI-RS resources corresponding to the N L1-RSRPs.

[0243] The number of CSI-RS resource indexes included in the UCI may be N. The field indicating the number of CSI-RS resource indexes N may be called the first field. A CSI-RS index (CRI) is an index of resource elements mapped to resource elements. Yes, and it may also be called the beam index.

[0244] The UCI may consist of a first part and a second part. The first part shall be at least It may include a first field. The bit size of the first field is based on the value of K. It may be determined that, for example, the bit size of the first field is log2(K). Part 2 may include at least K L1-RSRPs and K CRIs in Y time instances. Part 1 may be CSI Part 1. Part 2 may be CSI Part 2.

[0245] The UCI consists of two parts: the first part is the CSI-RS resource. The first part may include a first field containing the number of indexes N, and the second part may include N CRIs and N L1-RSRPs. For example, if the number of time instances Y is 3, the first part The first field included in the first part contains the number N of CSI-RS resource indexes for each time instance, and the first part may contain the values ​​of N5, N6, and N7. For example, The N CRIs and N L1-RSRPs included in part 2 are N CRIs and N L1-RSRPs per time instance. The second part may include N5 CRIs and N5 L1-RSRPs, N6 CRIs and N6 L1-RSRPs, and N7 CRIs and N7 L1-RSRPs.

[0246] The UCI consists of two parts: the first part is the CSI-RS resource. The first part may include a first field containing the number of indexes N, and the second part may include N CRIs, the maximum value of L1-RSRP and N-1 differential RSRPs. For example, if differential RSRPs are used in the second part, the maximum value of L1-RSRP and N-1 differential RSRPs included in the second part will be the maximum value of L1-RSRP and N-1 differential RSRPs for each time instance. The second part includes the maximum value in N5 L1-RSRPs and N5-1 differential RSRPs, the maximum value in N6 L1-RSRPs and N6-1 differential RSRPs, and in N7 L1-RSRPs The maximum value and N7-1 differential RSRPs may be included.

[0247] The UCI consists of a first part and a second part, the first part may include the maximum value of L1-RSRP over Y time instances and the CRI corresponding to that maximum value of L1-RSRP. At that time, the first part is a first field containing the number N of CSI-RS resource indexes and The first part may include the maximum value of the L1-RSRP in Y time instances and the CRI corresponding to that maximum L1-RSRP. Furthermore, the second part may include N-1 differential RSRPs and the CRI corresponding to those N-1 differential RSRPs. The first part may include information indicating the time instance at the maximum value of the L1-RSRP. For example, if the number of time instances Y is 3, the first field may include the number of CSI-RS resource indexes N per time instance. The first part includes the values ​​of N5, N6, N7, and Y time instances. The second part may include the maximum value of the L1-RSRP, the CRI corresponding to that maximum value of the L1-RSRP, and information indicating the time instance at the maximum value of the L1-RSRP. Furthermore, the second part includes Y time instances. The differential RSRP may be the differential RSRP obtained by excluding the maximum value of the L1-RSRP in the im-instance, and the CRI corresponding to that differential RSRP. Also, in the second part, the values ​​of the differential RSRP may be set within the second part in the order of time indices t5, t6, and t7. In the second part, the differential RSRP values ​​within the same time index may be set in the order of CRI.

[0248] In addition, if no threshold is set in S1205, terminal device 1 will connect to base station device 3. K L1-RSRPs may be sent to it. In that case, the UCI may include K L1-RSRPs and K CSI-RS resource indexes (CRIs) corresponding to the L1-RSRPs. The UCI consists of the first part The first part may include K L1-RSRPs and K CRIs corresponding to the L1-RSRPs.

[0249] If the terminal device does not receive the seventh parameter in S1201, then in S1205, the first part of the UCI may include information about the time instance. For example, Information regarding the time instance may be information indicating the time instance in which the L1-RSRP included in the UCI was measured. For example, information regarding the time instance may be the number of time instances Y, or the time of the time instance, or the time instance It may be the start and end times of the interval, or it may be time information and a time instance.

[0250] The upper layer processing unit 34 of the base station device 3 may set some or all of the fourth, fifth, sixth, and seventh parameters. The transmitting unit of the base station device 3 may transmit CSI-RS based on the fourth parameter. The receiving unit of the base station device 3 receives the UCI transmitted from the terminal device 1.

[0251] The program that operates on the base station device 3 and terminal device 1 according to the present invention uses a CPU (Central Processing Unit), etc., to realize the functions of the above embodiment according to the present invention. It may also be a control program (a program that makes the computer function). The information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing, and then stored in various ROMs such as Flash ROM (Read Only Memory) and H It is stored on the DD (Hard Disk Drive) and read, modified, and written by the CPU as needed. The filling process is carried out.

[0252] Furthermore, the terminal device 1 and a part of the base station device 3 in the above-described embodiment may be implemented using a computer. In that case, the program for implementing this control function may be recorded on a computer-readable recording medium, and the program recorded on this recording medium may be read by a computer system and executed.

[0253] Furthermore, the term "computer system" as used herein refers to the computer system built into terminal device 1 or base station device 3, and includes hardware such as the OS and peripheral devices. In addition, "computer-readable recording medium" refers to portable media such as flexible disks, magneto-optical disks, ROMs, CD-ROMs, and storage devices such as hard disks built into computer systems.

[0254] Furthermore, "computer-readable recording media" may include those that dynamically hold programs for a short period of time, such as communication lines used when transmitting programs via networks such as the Internet or communication lines such as telephone lines, as well as those that hold programs for a certain period of time, such as volatile memory within a computer system that acts as a server or client in such cases. In addition, the above-mentioned program may be for the purpose of realizing some of the functions described above, or it may be a program that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0255] Furthermore, the base station device 3 in the above-described embodiment can also be realized as an assembly (device group) composed of multiple devices. Each device constituting the device group may have some or all of the functions or functional blocks of the base station device 3 related to the above-described embodiment. The device group only needs to have a complete set of the functions or functional blocks of the base station device 3. Also, the terminal device 1 related to the above-described embodiment can be realized as an assembly. It is also possible to communicate with base station equipment.

[0256] Furthermore, the base station device 3 in the above-described embodiment may be EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or NG-RAN (NextGen RAN, NR RAN). Also, the base station device 3 in the above-described embodiment may be eNodeB It may have some or all of the functions of a higher-level node for a gNB.

[0257] Furthermore, some or all of the terminal device 1 and base station device 3 in the above-described embodiment may be implemented as LSIs, which are typically integrated circuits, or as chipsets. Each functional block of the terminal device 1 and base station device 3 may be individually chipped, or some or all of them may be integrated into a single chip. In addition, the method of implementing the integrated circuit is not limited to LSIs; it may also be implemented using dedicated circuits or general-purpose processors. Moreover, if advances in semiconductor technology lead to the emergence of integrated circuit technologies that can replace LSIs, it is also possible to use integrated circuits based on those technologies.

[0258] Furthermore, although the above-described embodiment mentions a terminal device as an example of a communication device, the present invention is not limited to this and can also be applied to stationary or non-movable electronic devices installed indoors or outdoors, such as terminal devices or communication devices for AV equipment, kitchen equipment, cleaning and washing machines, air conditioning equipment, office equipment, vending machines, and other household appliances.

[0259] Although embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and design changes and the like that do not depart from the gist of the invention are also included. Furthermore, the present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. In addition, configurations in which elements described in each of the above embodiments that produce similar effects are substituted for each other are also included. [Explanation of Symbols]

[0260] 1 (1A, 1B, 1C) Terminal device 3 Base station equipment 10, 30 Wireless Transceiver Unit 11, 31 Antenna section 12, 32 RF section 13, 33 Baseband section 14, 34 Upper Layer Processing Unit 15, 35 Media Access Control Layer Processing Unit 16, 36 Wireless Resource Control Layer Processing Unit 601 Data Acquisition Unit 602 Model Training Department 603 Management Department 604 Reasoning part 605 Model Storage Section

Claims

1. A terminal device that communicates with a base station device, A higher-layer processing unit that receives the first parameter and the third parameter, A receiving unit that receives M CSI-RSs based on the first parameter, A measurement unit for measuring the L1-RSRP of each of the M CSI-RSs, It includes a transmitter that transmits L1-RSRP as uplink control information (UCI), The first parameter is a parameter that indicates the number M of CSI-RS resources measured in each time instance reported in a given report setting, The third parameter is a time instant for measuring the L1-RSRP of each of the CSI-RSs. This is a parameter that indicates the number Y of lances, The UCI includes at least a first field set, The aforementioned first field set consists of Y first fields, Each of the Y first fields represents the number N of CSI-RS resource indices (CRIs) in each of the Y time instances. Terminal device.

2. A second parameter is received to set the threshold for L1-RSRP. In each of the aforementioned time instances, the N CSI-RS resource indexes The linked L1-RSRP is contained between the first and second values. The first value is the maximum L1-RSRP value measured in the time instance. the law of nature, The second value is the value obtained by subtracting the threshold value from the first value. The terminal device according to claim 1.

3. The aforementioned UCI consists of a first part and a second part, The first part includes at least the first field set, The terminal device according to claim 2.

4. The bit size of the first field is determined based on the value of M. The terminal device according to claim 3.

5. The second part includes at least the N L1-RSRPs and the N CRIs in the Y time instances, The terminal device according to claim 3.

6. A base station device that communicates with terminal devices, A higher-level processing unit that sets the first parameter and the third parameter, A transmitting unit that transmits M CSI-RSs based on the first parameter, It includes a receiving unit that receives L1-RSRP as uplink control information (UCI), The first parameter is a parameter that indicates the number M of CSI-RS resources measured in each time instance reported in a given report setting, The third parameter is a time instant for measuring the L1-RSRP of each of the CSI-RSs. This is a parameter that indicates the number Y of lances, The UCI includes at least a first field set, The aforementioned first field set consists of Y first fields, Each of the Y first fields represents the number N of CSI-RS resource indices (CRIs) in each of the Y time instances. Base station equipment.

7. A communication method in a terminal device that communicates with a base station device, The first parameter and the third parameter are received, Based on the first parameter mentioned above, M CSI-RS signals are received. The L1-RSRP of each of the M CSI-RSs is measured. L1-RSRP is transmitted as uplink control information (UCI). The first parameter is a parameter that indicates the number M of CSI-RS resources measured in each time instance reported in a given report setting, The third parameter is a time instant for measuring the L1-RSRP of each of the CSI-RSs. This is a parameter that indicates the number Y of lances, The UCI includes at least a first field set, The aforementioned first field set consists of Y first fields, Each of the Y first fields represents the number N of CSI-RS resource indices (CRIs) in each of the Y time instances. Communication method.

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