Terminal, wireless communication method, base station and system

Abstract

The invention provides a terminal, a wireless communication method, a base station and a system. A terminal according to one embodiment of the present disclosure is provided with: a reception unit that receives a first DCI, which is first downlink control information for scheduling a first PUSCH, which is a first uplink shared channel, and receives a second DCI for scheduling a second PUSCH; and a control unit that performs control for simultaneously transmitting the first PUSCH and the second PUSCH using a first panel and a second panel on the basis of the first DCI and the second DCI.

Description

[0001] This application is a divisional application of the invention patent application with national application number 202080098158.0, international application date March 6, 2020, date of entry into the Chinese national phase September 6, 2022, and invention name “Terminal, wireless communication method and base station”. Technical Field

[0002] The present disclosure relates to a terminal, a wireless communication method, a base station, and a system in a next generation mobile communication system. Background Art

[0003] In the Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) is standardized for the purpose of further high-speed data rate, low latency, etc. (Non-Patent Document 1). In addition, LTE-Advanced (3GPP Rel. 10-14) is standardized for the purpose of further increasing the capacity and sophistication of LTE (Release (Rel.) 8, 9 of the Third Generation Partnership Project (3GPP)).

[0004] Successor systems of LTE (for example, also known as the fifth generation mobile communication system (5G), 5G+(plus), the sixth generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.) are also being studied.

[0005] In the existing LTE system (e.g., 3GPP Rel.8-14), the user terminal (User Equipment (UE)) uses at least one of the UL data channel (e.g., Physical Uplink Shared Channel (PUSCH)) and the UL control channel (e.g., Physical Uplink Control Channel (PUCCH)) to send uplink control information (Uplink Control Information (UCI)).

[0006] Prior art literature

[0007] Non-patent literature

[0008] Non-patent document 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall Description; Stage 2 (Release 8)”, April 2010 Summary of the invention

[0009] Problems to be solved by the invention

[0010] In future wireless communication systems (e.g., NR), research is underway to determine a DL receive beam (spatial domain receive filter) and a UL transmit beam (spatial domain transmit filter) based on information notified from a base station. In addition, research is underway to determine to use multiple UE panels (panels, antenna panels) for DL ​​reception and UL transmission by the UE.

[0011] However, it is not clear how the UE activates / deactivates multiple panels. If multiple panels cannot be used properly, the increase in power consumption, the reduction in beam gain, etc. may degrade system performance.

[0012] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, a base station, and a system that appropriately use a plurality of panels.

[0013] Solutions to Solve Problems

[0014] A terminal according to one embodiment of the present disclosure includes: a receiving unit that receives information about an association between any one of a plurality of panels and a specific signal; and a control unit that activates or deactivates one of the plurality of panels based on the information.

[0015] Effects of the Invention

[0016] According to one aspect of the present disclosure, a plurality of panels can be appropriately used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1A as well as Figure 1B This is a diagram showing an example of RRC IE set by the panel.

[0018] FIG. 2A to FIG. 2C This is a diagram showing another example of RRC IE set by the panel.

[0019] Figure 3A as well as Figure 3B This is a diagram showing an example of MAC CE for activation / deactivation of a panel.

[0020] Figure 4A as well as Figure 4B This is a diagram showing another example of a MAC CE for activation / deactivation of a panel.

[0021] Figure 5 This is a diagram showing an example of activation / deactivation of a panel based on deactivation criterion 1.

[0022] Figure 6 This is a diagram showing an example of activation / deactivation of a panel based on deactivation criterion 3.

[0023] Figure 7 This is a diagram showing an example of activation / deactivation of a panel based on activation criteria 1.

[0024] Figure 8 This is a diagram showing another example of activation / deactivation of a panel based on activation criteria 1.

[0025] Fig. 9 This is a diagram showing an example of activation / deactivation of a panel based on activation criterion 3.

[0026] Fig.10 is a diagram showing an example of UE operation using a deactivated panel.

[0027] Fig.11A as well as Fig. 11B This is a diagram showing an example of deactivation method 1-1.

[0028] Fig.12 This is a diagram showing an example of deactivation method 1-2.

[0029] Fig.13A And 13B is a diagram showing another example of deactivation method 1-2.

[0030] Fig.14 This is a diagram showing an example of deactivation method 2-1.

[0031] Fig.15A as well as Fig. 15B This is a diagram showing another example of the deactivation method 2-1.

[0032] Fig.16 This is a diagram showing an example of deactivation method 2-2.

[0033] Fig.17 This is a diagram showing another example of the deactivation method 2-2.

[0034] Fig.18This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0035] Fig.19 This is a diagram showing an example of the structure of a base station involved in one embodiment.

[0036] Fig. 20 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0037] Fig.21 This is a diagram showing an example of the hardware configuration of a base station and a user terminal involved in one embodiment. DETAILED DESCRIPTION

[0038] (TCI, spatial relationship, QCL)

[0039] In NR, research is being conducted on: based on the Transmission Configuration Indication state (TCI state), the reception processing (for example, at least one of reception, demapping, demodulation, and decoding) and the transmission processing (for example, at least one of transmission, mapping, precoding, modulation, and coding) of at least one of the signal and the channel (expressed as signal / channel) in the UE are controlled.

[0040] The TCI state may also represent an element of a signal / channel applied to a downlink. The element equivalent to the TCI state applied to a signal / channel applied to an uplink may also be expressed as a spatial relation.

[0041] The TCI state refers to information related to Quasi-Co-Location (QCL) of signals / channels, and may also be referred to as spatial reception parameters, spatial relationship information, etc. The TCI state may be set for each channel or each signal in the UE.

[0042] In addition, in the present disclosure, the TCI state of DL can also be replaced with the spatial relationship of UL, the TCI state of UL, etc.

[0043] QCL is an indicator that indicates the statistical properties of a signal / channel. For example, when a certain signal / channel is in a QCL relationship with other signals / channels, it can also mean that at least one of the Doppler shift, Doppler spread, average delay, delay spread, and spatial parameter (e.g., spatial Rx parameter) can be assumed to be the same among these different multiple signals / channels (at least one of these is QCL).

[0044] In addition, the spatial reception parameter may also correspond to a reception beam of the UE (eg, a reception analog beam), and the beam may also be determined based on the spatial QCL. The QCL (or at least one element of the QCL) in the present disclosure may also be replaced by sQCL (spatial QCL).

[0045] It is also possible to specify multiple types (QCL types) of QCL. For example, it is also possible to set four QCL types AD that can assume the same parameters (or parameter sets) but are different. The parameters (which may also be referred to as QCL parameters) are represented below:

[0046] QCL Type A (QCL-A): Doppler shift, Doppler spread, average delay, and delay spread,

[0047] QCL type B (QCL-B): Doppler shift and Doppler spread,

[0048] QCL Type C (QCL-C): Doppler shift and average delay,

[0049] QCL type D (QCL-D): spatial reception parameters.

[0050] The UE assumes that a certain Control Resource Set (CORESET), channel or reference signal has a specific QCL (e.g., QCL type D) relationship with other CORESETs, channels or reference signals, which can also be called QCL assumption.

[0051] The UE may also determine at least one of the transmit beam (Tx beam) and receive beam (Rx beam) of the signal / channel based on the TCI status or QCL assumption of the signal / channel.

[0052] The TCI state may be, for example, information related to QCL between the channel being the object (in other words, the reference signal (RS) used for the channel) and other signals (for example, other RS). The TCI state may also be set (indicated) by high-layer signaling, physical layer signaling, or a combination of these.

[0053] In the present disclosure, the high-layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0054] MAC signaling may also use, for example, MAC Control Element (MAC CE), MAC Protocol Data Unit (MAC Protocol Data Unit (PDU)), etc. Broadcast information may also be, for example, Master Information Block (MIB), System Information Block (SIB), minimum system information (Remaining Minimum System Information (RMSI)), Other System Information (Other System Information (OSI)), etc.

[0055] The physical layer signaling may be, for example, downlink control information (Downlink Control Information (DCI))).

[0056] The channel for which the TCI state or spatial relationship is set (specified) may be, for example, at least one of a downlink shared channel (Physical Downlink Shared Channel (PDSCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), and an uplink control channel (Physical Uplink Control Channel (PUCCH)).

[0057] In addition, the RS that is in a QCL relationship with the channel may be, for example, at least one of a synchronization signal block (SynchronizationSignal Block (SSB)), a channel state information reference signal (CSI-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a tracking CSI-RS (also called a tracking reference signal (TRS)), and a QCL detection reference signal (also called QRS).

[0058] The SSB is a signal block including at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)), a secondary synchronization signal (Secondary Synchronization Signal (SSS)), and a broadcast channel (Physical Broadcast Channel (PBCH)). The SSB may also be referred to as an SS / PBCH block.

[0059] The UE may also receive setting information of a list of information elements containing TCI states through higher-layer signaling (e.g., PDSCH-Config, tci-StatesToAddModList).

[0060] The information element of the TCI state set by high-level signaling ("TCI-state IE" of RRC) may also include a TCI state ID, one or more QCL information ("QCL-Info"). The QCL information may also include at least one of information related to the RS that forms a QCL relationship (RS relationship information) and information indicating the QCL type (QCL type information). The RS relationship information may also include information such as the index of the RS (for example, SSB index, non-zero power CSI-RS (Non-Zero-Power (NZP) CSI-RS) resource ID (Identifier)), the index of the cell where the RS is located, and the index of the bandwidth part (Bandwidth Part (BWP)) where the RS is located.

[0061] In Rel.15NR, as the TCI state of at least one of PDCCH and PDSCH, both RS of QCL type A and RS of QCL type D, or only RS of QCL type A can be set in UE.

[0062] When TRS is set as RS of QCL type A, TRS is different from the demodulation reference signal (DMRS) of PDCCH or PDSCH, and it is assumed that the same TRS is periodically transmitted for a long time. UE can measure TRS and calculate average delay, delay spread, etc.

[0063] For a UE in which the TCI state of the DMRS of the PDCCH or PDSCH is set as the RS of QCL type A, it can be assumed that the DMRS of the PDCCH or PDSCH is the same as the parameters of QCL type A of the TRS (average delay, delay spread, etc.), so the parameters of type A of the DMRS of the PDCCH or PDSCH (average delay, delay spread, etc.) can be obtained based on the measurement result of the TRS. When the UE performs channel estimation of at least one of the PDCCH and the PDSCH, the measurement result of the TRS can be used to perform channel estimation with higher accuracy.

[0064] A UE to which a QCL type D RS is set can determine a UE reception beam (spatial domain reception filter, UE spatial domain reception filter) using the QCL type D RS.

[0065] The RS of QCL type X in the TCI state may also mean an RS that is in a QCL type X relationship with a certain channel / signal (DMRS), and the RS may also be referred to as a QCL source of QCL type X in the TCI state.

[0066] <TCI status for PDCCH>

[0067] The information related to QCL between the PDCCH (or the DMRS antenna port associated with the PDCCH) and a certain RS may also be referred to as the TCI state for the PDCCH, etc.

[0068] The UE may also determine the TCI state for the UE-specific PDCCH (CORESET) based on higher layer signaling. For example, for the UE, one or more (K) TCI states may be set for each CORESET through RRC signaling.

[0069] The UE may also activate one of the multiple TCI states set by RRC signaling for each CORESET through MAC CE. The MAC CE may also be called TCI State Indication for UE-specific PDCCH MAC CE. The UE may also monitor the CORESET based on the activated TCI state corresponding to the CORESET.

[0070] <TCI status for PDSCH>

[0071] The information related to QCL between PDSCH (or a DMRS antenna port associated with PDSCH) and a certain DL-RS may also be referred to as TCI state for PDSCH, etc.

[0072] The UE may also be notified (set) of M (M≥1) TCI states for PDSCH (QCL information for M PDSCHs) through higher layer signaling. In addition, the number M of TCI states set for the UE may also be limited by at least one of the UE capability and the QCL type.

[0073] The DCI used in the scheduling of the PDSCH may also include a field indicating the TCI state for the PDSCH (for example, it may also be referred to as a TCI field, a TCI state field, etc.). The DCI may also be used in the scheduling of the PDSCH of a cell, for example, it may also be referred to as DL DCI, DL allocation, DCI format 1_0, DCI format 1_1, etc.

[0074] Whether the TCI field is included in the DCI may also be controlled by information notified from the base station to the UE. The information may also be information indicating whether the TCI field exists (present or absent) in the DCI (e.g., TCI presence information, TCI presence information in DCI, high-layer parameter TCI-PresentInDCI). The information may also be set to the UE through high-layer signaling, for example.

[0075] In the case where more than 8 TCI states are set for the UE, less than 8 TCI states may also be activated (or specified) using MAC CE. The MAC CE may also be referred to as TCI States Activation / Deactivation for UE-specific PDSCH MAC CE. The value of the TCI field in the DCI may also represent one of the TCI states activated by the MAC CE.

[0076] When the UE is set to "valid (enabled)" TCI existence information for the CORESET that schedules PDSCH (the CORESET used in the PDCCH transmission that schedules PDSCH), the UE can also assume that the TCI field exists in the DCI format 1_1 of the PDCCH sent on the CORESET.

[0077] When TCI existence information is not set for the CORESET that schedules the PDSCH, or the PDSCH is scheduled through DCI formats 1_0, when the time offset between the reception of DL DCI (DCI that schedules the PDSCH) and the reception of the PDSCH corresponding to the DCI is greater than a threshold, in order to determine the QCL of the PDSCH antenna port, the UE may also assume that the TCI state or QCL assumption for the PDSCH is the same as the TCI state or QCL assumption applied to the CORESET used in the PDCCH transmission that schedules the PDSCH.

[0078] When TCI presence information is set to "valid (enabled)", when the TCI field in the DCI in the component carrier (CC) of the scheduling (PDSCH) indicates the activated TCI state in the scheduled CC or DL ​​BWP, and the PDSCH is scheduled by DCI format 1_1, in order to determine the QCL of the PDSCH antenna port, the UE may also use the TCI according to the value of the TCI field in the PDCCH with DCI and detected. When the time offset between the reception of the DL DCI (scheduling the PDSCH) and the PDSCH corresponding to the DCI (the PDSCH scheduled by the DCI) is greater than a threshold, the UE may also assume that the DM-RS port of the PDSCH of the serving cell is QCL with respect to the RS in the TCI state related to the QCL type parameter given by the indicated TCI state.

[0079] In the case where the UE is set with a single time slot PDSCH, the indicated TCI state may also be based on the activated TCI state in the time slot with the scheduled PDSCH. In the case where the UE is set with multiple time slot PDSCHs, the indicated TCI state may also be based on the activated TCI state in the initial time slot with the scheduled PDSCH, and the UE may also expect that the TCI state indicated in the time slot with the scheduled PDSCH is the same. In the case where the UE is set with a CORESET associated with a search space set for cross-carrier scheduling, the UE sets the TCI existence information to "valid" for the CORESET, and in the case where at least one of the TCI states set for the service cell scheduled by the search space set includes QCL type D, the UE may also assume that the time offset between the detected PDCCH and the PDSCH corresponding to the PDCCH is greater than the threshold.

[0080] In RRC connected mode, in both the case where the TCI information in the DCI (high-layer parameter TCI-PresentInDCI) is set to "valid (enabled)" and the case where the TCI information in the DCI is not set, when the time offset between the reception of the DL DCI (DCI that schedules the PDSCH) and the corresponding PDSCH (the PDSCH scheduled by the DCI) is less than a threshold, the UE may also assume that the DM-RS port of the PDSCH of the serving cell is QCL with the following RS, which is an RS related to the QCL parameter used in the QCL indication of the PDCCH of the CORESET associated with the monitored search space, and the CORESET has the smallest (lowest) CORESET-ID in the latest (latest) time slot monitored by the UE in one or more CORESETs within the activated BWP of the serving cell. This RS may also be referred to as the default TCI state of the PDSCH or the default QCL assumption of the PDSCH.

[0081] The time offset between the reception of the DL DCI and the reception of the PDSCH corresponding to the DCI may also be referred to as a scheduling offset.

[0082] In addition, the above-mentioned threshold may also be referred to as time duration for QCL, "timeDurationForQCL", "threshold (Threshold)", "threshold for offset between a DCI indicating a TCIstate and a PDSCH scheduled by the DCI" (Threshold for offset between a DCI indicating a TCIstate and a PDSCH scheduled by the DCI)", "Threshold-Sched-Offset", scheduling offset threshold, scheduling offset threshold, etc.

[0083] The QCL time length may also be based on UE capabilities, for example, based on the delay required for decoding of the PDCCH and beam switching. The QCL time length may also be the minimum time required by the UE for PDCCH reception and application of spatial QCL information received in the DCI for PDSCH processing. The QCL time length may be represented by the number of symbols per subcarrier interval or by time (e.g., μs). The information on the QCL time length may be reported from the UE to the base station as UE capability information or may be set to the UE from the base station using high-layer signaling.

[0084] For example, the UE may also assume that the DMRS port of the PDSCH is QCL with the following DL-RS, which is based on the DL-RS of the TCI state activated for the CORESET corresponding to the minimum CORESET-ID. The latest time slot may also be the time slot for receiving the DCI scheduling the PDSCH.

[0085] In addition, CORESET-ID may be an ID (an ID for identifying CORESET, control resource set Id (controlResourceSetId)) set by the RRC information element "ControlResourceSet".

[0086] When a CORESET is not set in a CC, the default TCI state may be an activated TCI state that is applicable in the PDSCH within the activated DL BWP of the CC and has the lowest ID.

[0087] After Rel.16, when the PDSCH and the PDCCH that schedules it are in different component carriers (CC) (cross-carrier scheduling), when the delay from PDCCH to PDSCH (PDCCH-to-PDSCHdelay) is shorter than the time length for QCL, or when there is no TCI state in the DCI used for the scheduling, the UE can also obtain the QCL assumption for the scheduled PDSCH that can be applied in the PDSCH within the activated BWP of the scheduled cell and from the activated TCI state with the lowest ID.

[0088] <Spatial relationship for PUCCH>

[0089] The UE may also be configured with parameters (PUCCH configuration information, PUCCH-Config) used in PUCCH transmission through higher layer signaling (e.g., Radio Resource Control (RRC) signaling). The PUCCH configuration information may also be configured for each partial bandwidth (e.g., uplink bandwidth part (Bandwidth Part (BWP))) within a carrier (also referred to as a cell, component carrier (CC)).

[0090] The PUCCH configuration information may also include a list of PUCCH resource set information (eg, PUCCH-ResourceSet) and a list of PUCCH spatial relationship information (eg, PUCCH-SpatialRelationInfo).

[0091] The PUCCH resource set information may also include a list (eg, resourceList) of PUCCH resource indices (IDs, eg, PUCCH-ResourceId).

[0092] In addition, when the UE does not have dedicated PUCCH resource setting information (e.g., dedicated PUCCH resource configuration) provided through PUCCH resource set information in the PUCCH setting information (before establishing RRC), the UE may also determine the PUCCH resource set based on parameters (e.g., pucch-ResourceCommon) in system information (e.g., System Information Block Type 1 (SIB1)) or minimum system information (Remaining Minimum System Information (RMSI)). The PUCCH resource set may also include 16 PUCCH resources.

[0093] On the other hand, when the UE has the above-mentioned dedicated PUCCH resource setting information (UE-dedicated uplink control channel structure, dedicated PUCCH resource structure) (after establishing RRC), the UE can also determine the PUCCH resource set according to the number of UCI information bits.

[0094] The UE may also determine the number of CCEs (N) in the control resource set (CORESET) for receiving the PDCCH carrying the DCI based on the value of a field (e.g., a PUCCH resource indicator field) in the downlink control information (downlink control information (DCI)) (e.g., DCI format 1_0 or 1_1 used in the scheduling of the PDSCH) and the number of CCEs (N) in the control resource set (CORESET) for receiving the PDCCH carrying the DCI. CCE ), the index of the first (initial) CCE received by the PDCCH (n CCE，0 ) to determine at least one of the PUCCH resource sets (for example, a PUCCH resource set determined by a cell or UE individually) a PUCCH resource (index) within the above-mentioned PUCCH resource set.

[0095] The PUCCH spatial relationship information (eg, "PUCCH-spatialRelationInfo" of the RRC information element) may also indicate multiple candidate beams (spatial domain filters) for PUCCH transmission. The PUCCH spatial relationship information may also indicate the spatial association between RS (reference signal) and PUCCH.

[0096] The list of PUCCH spatial relationship information may also include several elements (PUCCH spatial relationship information IE (Information Element)). Each PUCCH spatial relationship information may also include, for example, at least one of the information related to the index of the PUCCH spatial relationship information (ID, for example, pucch-SpatialRelationInfoId), the index of the serving cell (ID, for example, servingCellId), and the RS (reference RS) with which the PUCCH becomes spatially related.

[0097] For example, the information related to the RS may also be an SSB index, a CSI-RS index (e.g., an NZP-CSI-RS resource structure ID), or an SRS resource ID and an ID of a BWP. The SSB index, the CSI-RS index, and the SRS resource ID may also be associated with at least one of the beam, resource, and port selected by measuring the corresponding RS.

[0098] When more than one spatial relation information related to the PUCCH is set, the UE may perform control based on the PUCCH spatial relation Activation / Deactivation MAC CE so that one PUCCH spatial relation information becomes active for one PUCCH resource at a certain time.

[0099] The PUCCH spatial relationship activation / deactivation MAC CE of Rel-15 NR is expressed by a total of three octets (8 bits×3=24 bits) of octets (Octet, Oct) 1-3.

[0100] The MAC CE may also include information such as the serving cell ID ("Serving Cell ID" field) of the application object, the BWP ID ("BWP ID" field), and the PUCCH resource ID ("PUCCH Resource ID" field).

[0101] In addition, the MAC CE contains "S i ”(i=0-7) field. i When the field indicates 1, the UE activates the spatial relationship information of the spatial relationship information ID#i. i When the field indicates 0, the UE deactivates the spatial relationship information of the spatial relationship information ID#i.

[0102] The UE may also activate the PUCCH relationship information specified by the MAC CE 3 ms after sending an affirmative response (ACK) to the MAC CE for activating the PUCCH spatial relationship information.

[0103] <Spatial relationship between SRS and PUSCH>

[0104] The UE may also receive information (SRS configuration information, for example, parameters in the "SRS-Config" of the RRC control element) used in transmitting a measurement reference signal (for example, a sounding reference signal (SRS)).

[0105] Specifically, the UE may also receive at least one of information related to one or more SRS resource sets (SRS resource set information, for example, "SRS-ResourceSet" of the RRC control element) and information related to one or more SRS resources (SRS resource information, for example, "SRS-Resource" of the RRC control element).

[0106] One SRS resource set may also be associated with a number of SRS resources (a number of SRS resources may also be grouped). Each SRS resource may also be identified by an SRS resource identifier (SRS Resource Indicator (SRI)) or an SRS resource ID (Identifier).

[0107] The SRS resource set information may also include an SRS resource set ID (SRS-ResourceSetId), a list of SRS resource IDs (SRS-ResourceId) used in the resource set, an SRS resource type, and information on the usage of the SRS.

[0108] Here, the SRS resource type may also represent any one of periodic SRS (Periodic SRS (P-SRS)), semi-persistent SRS (Semi-Persistent SRS (SP-SRS)), and aperiodic SRS (Aperiodic SRS (A-SRS, AP-SRS)). In addition, the UE may also periodically (or periodically after activation) send P-SRS and SP-SRS, and send A-SRS based on the SRS request of the DCI.

[0109] In addition, the usage (RRC parameter "usage", L1 (Layer-1) parameter "SRS-SetUse") may be, for example, beam management (beamManagement), codebook-based transmission (codebook: CB), non-codebook-based transmission (nonCodebook: NCB), antenna switching (antennaSwitching), etc. The SRS for codebook-based transmission or non-codebook-based transmission may also be used in the determination of the precoder for codebook-based or non-codebook-based PUSCH transmission based on SRI.

[0110] For example, the UE may determine the precoder for PUSCH transmission based on SRI, Transmitted Rank Indicator (TRI) and Transmitted Precoding Matrix Indicator (TPMI) in case of codebook-based transmission. The UE may determine the precoder for PUSCH transmission based on SRI in case of non-codebook-based transmission.

[0111] SRS resource information may also include SRS resource ID (SRS-ResourceId), SRS port number, SRS port number, sending comb, SRS resource mapping (for example, time and / or frequency resource location, resource offset, resource period, number of repetitions, number of SRS code elements, SRS bandwidth, etc.), jump association information, SRS resource type, sequence ID, SRS spatial relationship information, etc.

[0112] The spatial relationship information of SRS (e.g., "spatialRelationInfo" of RRC information element) may also indicate the spatial relationship information between a reference signal and SRS. The reference signal may also be at least one of a synchronization signal / broadcast channel (Synchronization Signal / Physical Broadcast Channel: SS / PBCH) block, a channel state information reference signal (CSI-RS), and an SRS (e.g., other SRS). The SS / PBCH block may also be referred to as a synchronization signal block (SSB).

[0113] The spatial relationship information of SRS may also include at least one of an SSB index, a CSI-RS resource ID, and an SRS resource ID as an index of the reference signal.

[0114] In addition, in the present disclosure, SSB index, SSB resource ID and SSBRI (SSB resource identifier (SSB Resource Indicator)) can also be replaced with each other. In addition, CSI-RS index, CSI-RS resource ID and CRI (CSI-RS resource identifier (CSI-RS Resource Indicator)) can also be replaced with each other. In addition, SRS index, SRS resource ID and SRI can also be replaced with each other.

[0115] The spatial relationship information of SRS may also include a serving cell index, a BWP index (BWP ID), etc. corresponding to the above-mentioned reference signal.

[0116] In NR, the transmission of uplink signals can also be controlled based on the presence or absence of beam correlation (Beam Correspondence (BC)). BC can also refer to the ability of a node (e.g., a base station or UE) to determine the beam (transmit beam, Tx beam) used in signal transmission based on the beam (receive beam, Rx beam) used in signal reception.

[0117] In addition, BC can also be called transmit / receive beam correlation (Tx / Rx beamcorrespondence), beam reciprocity (beam reciprocity), beam calibration (beam calibration), calibrated / non-calibrated (Calibrated / Non-calibrated), reciprocity calibrated / non-calibrated (reciprocity calibrated / non-calibrated), correspondence, consistency, etc.

[0118] For example, in the absence of BC, the UE may also send uplink signals (e.g., PUSCH, PUCCH, SRS, etc.) based on the measurement results of more than one SRS (or SRS resources) using the same beam (spatial domain transmit filter) as the SRS (or SRS resources) indicated from the base station.

[0119] On the other hand, in the case of BC, the UE may also send uplink signals (e.g., PUSCH, PUCCH, SRS, etc.) using a beam (spatial domain receive filter) that is the same as or corresponds to the beam (spatial domain receive filter) used in the reception of SSB or CSI-RS (or CSI-RS resources).

[0120] In the case where spatial relationship information related to SSB or CSI-RS and SRS is set for a certain SRS resource (for example, with BC), the UE may also use the same spatial domain filter (spatial domain transmit filter) as the spatial domain filter (spatial domain receive filter) used for receiving the SSB or CSI-RS to transmit the SRS resource. In this case, the UE may also assume that the UE receive beam of the SSB or CSI-RS is the same as the UE transmit beam of the SRS.

[0121] In the case where spatial relationship information related to other SRS (reference SRS) and the SRS (target SRS) is set for a certain SRS (target SRS) resource (for example, in the case where there is no BC), the UE may also use the same spatial domain filter (spatial domain transmit filter) as the spatial domain filter (spatial domain transmit filter) used for transmitting the reference SRS to transmit the target SRS resource. That is, in this case, the UE may also assume that the UE transmit beam of the reference SRS is the same as the UE transmit beam of the target SRS.

[0122] The UE may also determine the spatial relationship of the PUSCH scheduled by the DCI based on the value of a field (e.g., SRS resource identifier (SRI) field) in the DCI (e.g., DCI format 0_1). Specifically, the UE may also use the spatial relationship information of the SRS resources determined based on the value of the field (e.g., SRI) in the PUSCH transmission (e.g., "spatialRelationInfo" of the RRC information element).

[0123] In the case of codebook-based transmission for PUSCH, the UE may also be configured with two SRS resources through RRC, and one of the two SRS resources may be indicated through DCI (a one-bit field). In the case of non-codebook-based transmission for PUSCH, the UE may also be configured with four SRS resources through RRC, and one of the four SRS resources may be indicated through DCI (a two-bit field). In order to use a spatial relationship other than the two or four spatial relationships configured through RRC, RRC reconfiguration is required.

[0124] In addition, the spatial relationship of the SRS resources used in the PUSCH can be set for DL-RS. For example, for SP-SRS, the UE can be set with the spatial relationship of multiple (for example, up to 16) SRS resources through RRC, and one of the multiple SRS resources can be indicated through MAC CE.

[0125] (UE multi-panel)

[0126] Considering UL beam indication based on using a unified transmission configuration indicator (TCI) framework for UL high-speed panel selection to mitigate the UL coverage loss caused by the maximum permitted exposure (MPE), research is underway to facilitate UL beam selection for UEs with multiple panels.

[0127] In order to optimize the power consumption of the UE, it is effective to deactivate the panels that are not used by the UE. In Rel.16, the activation / deactivation of the UE panel depends on the UE implementation and is not recognized by the base station (e.g., gNB) (it is invisible (transparent) from the base station). There is no mechanism to support the effective activation / deactivation of the UE panel and align the activation / deactivation information of the UE panel between the base station and the UE.

[0128] If the UE panel is not properly activated / deactivated, the increase in power consumption, reduction in beam gain, etc. may lead to a decrease in system performance.

[0129] Therefore, the inventors of the present invention have conceived a method for activating / deactivating a UE panel.

[0130] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods according to the embodiments may be applied individually or in combination.

[0131] In the present disclosure, "A / B" and "at least one of A and B" may also be replaced with each other. In the present disclosure, cell, CC, carrier, BWP, and frequency band may also be replaced with each other. In the present disclosure, index, ID, indicator, and resource ID may also be replaced with each other. In the present disclosure, RRC parameters, high-layer parameters, RRC information elements (IEs), and RRC messages may also be replaced with each other.

[0132] In the present disclosure, TCI state, QCL assumption, QCL parameter, spatial domain reception filter, UE spatial domain reception filter, UE reception beam, DL reception beam, DL precoding, DL precoder, DL-RS, RS of QCL type D assumed by TCI state or QCL, RS of QCL type A assumed by TCI state or QCL may also be replaced with each other. In the present disclosure, QCL type X-RS, DL-RS associated with QCL type X, DL-RS with QCL type X, source of DL-RS, SSB, CSI-RS may also be replaced with each other.

[0133] In the present disclosure, spatial relationship, spatial relationship information, spatial relationship assumption, QCL parameters, spatial domain transmit filter, UE spatial domain transmit filter, UE transmit beam, UL transmit beam, UL precoding, UL precoder, RS of spatial relationship, DL-RS, QCL assumption, SRI, SRI-based spatial relationship, and UL TCI can also be replaced with each other.

[0134] In the present disclosure, panels, UE panels, antenna panels, antenna groups, beams, and spatial domain filters may also be interchangeable.

[0135] (Wireless Communication Method)

[0136] The activation / deactivation of the UE panel can be controlled by the base station and notified (instructed, set) to the UE. The activation / deactivation of the UE panel can also be controlled by the UE and notified (reported) to the base station. The activation / deactivation of the UE panel can also be reported by the UE and confirmed (acknowledged) by the base station.

[0137] The UE may also be indicated the activation / deactivation of the UE panel via an association between the UE panel and one or more specific signals (implicit indication).

[0138] In the present disclosure, specific signals, specific types of signals, resources of specific signals, DL reception, DL channel, DL-RS, UL transmission, UL channel, UL-RS may also be replaced with each other. In the present disclosure, DL-RS and CSI-RS may also be replaced with each other. In the present disclosure, DL channel, PDCCH, and PDSCH may also be replaced with each other. In the present disclosure, UL-RS and SRS may also be replaced with each other. In the present disclosure, UL channel, PUCCH, and PUSCH may also be replaced with each other.

[0139] In the present disclosure, activated, active, enabled, and powered on may also be used interchangeably. In the present disclosure, deactivated, inactive, disabled, and powered off may also be used interchangeably.

[0140] <First embodiment>

[0141] The UE may also be instructed / set to activate / deactivate a UE panel. The UE may also receive information related to the activation or deactivation of at least one of a plurality of UE panels. The activation / deactivation of the panel may also follow any one of the following indication methods 1 to 3. By any one of the indication methods 1 to 3, DL reception and UL transmission using the panel may be activated / deactivated separately or jointly.

[0142] 《Instruction Method 1》

[0143] The UE may also be explicitly instructed / configured to activate / deactivate the panel via at least one of RRC signaling and MAC CE.

[0144] The instruction / setting may also comply with at least one of the following instruction methods 1-1 and 1-2.

[0145] [Instruction method 1-1]

[0146] The UE may also be configured to activate / deactivate the panel via RRC signaling.

[0147] A new RRC information element (IE) for activation / deactivation of the panel (eg, PanelConfig) may also be introduced. This information may also be included in an existing RRC IE.

[0148] For example, Figure 1A As shown in FIG. 1 , the panel setting may also include at least one of the ID of the activated panel and the ID of the deactivated panel. Figure 1B As shown, the panel setting may also include a panel ID and a status indicating whether the panel is activated or deactivated.

[0149] The panel ID can also be the RS group / set ID, antenna port (group / set) ID, or other new IDs.

[0150] The instruction method 1-1 may also be in accordance with any of the following instruction methods 1-1a and 1-1b.

[0151] [[Instruction method 1-1a]]

[0152] The activation / deactivation of the panel may also be configured for each CC / BWP via RRC signaling. The indication / configuration may also comply with at least one of the following indication methods 1-1a-1 and 1-1a-2.

[0153] [[[Instruction Method 1-1a-1]]]

[0154] The UE may also be explicitly indicated with the BWP ID / serving cell ID along with the panel ID. Figure 2A As shown in FIG. 1 , the panel setting may also include at least one of information of an activated panel and information of a deactivated panel, and each information may also include a BWP ID, a serving cell ID, and a panel ID. Figure 2B As shown, the panel settings may also include BWP ID, serving cell ID, panel ID and status.

[0155] [[[Instruction Method 1-1a-2]]]

[0156] The UE may also determine the BWP ID / serving cell ID based on the RRC IE containing the activation / deactivation information of the panel. Figure 2C As shown, the panel settings may also be included in the serving cell settings (servingCellConfig). The activation / deactivation of the panel may also be applied to the corresponding serving cell.

[0157] When group based beam reporting (groupBasedBeamReporting) is set, the panel ID may correspond to each group (index) of the group based beam reporting.

[0158] [[Instruction method 1-1b]]

[0159] The activation / deactivation of the panel may also be set for each CC group / BWP group via RRC signaling.

[0160] [Instruction method 1-2]

[0161] The UE may also be instructed to activate / deactivate the panel via the MAC CE. The instruction may also follow any one of the following instruction methods 1-2a and 1-2b.

[0162] [[Instruction method 1-2a]]

[0163] The activation / deactivation of the panel may also be indicated for each CC / BWP via MAC CE. The indication may also follow any one of the following indication methods 1-2a-1 and 1-2a-2.

[0164] [[[Instruction Method 1-2a-1]]]

[0165] For each panel, a bitmap with 1 bit can also be used in the activation / deactivation indication. Figure 3A As shown, MAC CE contains bitmap A i A iUsed to indicate activation / deactivation of panel IDi. i =1 can also indicate activation, A i =0 can also indicate deactivation. i =0 can also indicate activation, A i =1 may also indicate deactivation. The MACCE may also include at least one of a reserved bit (R) field, a serving cell ID field, and a BWP ID field. i The order of the fields can be either descending or ascending order of i.

[0166] [[[Instruction Method 1-2a-2]]]

[0167] The panel ID and 1 bit may also be indicated. 1 bit may also be used in the indication of activation / deactivation of the indicated panel. For example, Figure 3B As shown, the MAC CE includes a panel ID field and a 1-bit field. The 1-bit field may also be referred to as an activation / deactivation (A / D) field or an activation field, etc. The A / D field may also be used in the indication of activation / deactivation of the panel ID. The MAC CE may also further include at least one of a serving cell ID field and a BWP ID field. In the MAC CE, the A / D field may also be located after the panel ID field. The MAC CE of the example in the figure includes an octet (8 bits) panel ID field, but the MAC CE may include multiple panel ID fields (octets) or multiple groups (octets) of panel ID fields and corresponding A / D fields.

[0168] For indication methods 1-2a-1 and 1-2a-2, the number of bits used in the activation / deactivation indication may also depend on the maximum number of panels, and the unused bits may also be reserved bits.

[0169] [[Instruction method 1-2b]]

[0170] Activation / deactivation of the panel may also be indicated per CC group / BWP group via MAC CE.

[0171] The lists up to X may also be set by RRC signaling. Each list may also indicate a CC group / BWP group. Activation / deactivation of the panel may also be applied to the CC / BWP in the list including the indicated CC / BWP.

[0172] A new MAC CE for activation / deactivation of the panel may also be imported. The MAC CE may also include a list ID field for a list of applicable CC / BWPs. The MAC CE may include at least one of a serving cell ID field and a BWP ID field, or may not include at least one of a serving cell ID field and a BWP ID field.

[0173] For example, Figure 4A As shown, the MAC CE may also include a list ID field to replace Figure 3A The serving cell ID field and the BWP ID field.

[0174] For example, Figure 4B As shown, the MAC CE may also include a list ID field to replace Figure 3B The serving cell ID field and the BWP ID field.

[0175] The MAC CE may not include the list ID field. For example, when only one list is configured through RRC signaling, the MAC CE may not include the list ID field.

[0176] 《Instructions 2》

[0177] The UE may also be implicitly instructed / set to activate / deactivate the panel. The UE may also be instructed / set to activate / deactivate the panel via an association between the panel and one or more specific signals.

[0178] In indication method 2, panel-specific specific signals may also be supported.

[0179] Indication method 2 may also follow at least one of the following indication methods 2-1 and 2-2.

[0180] [Instruction method 2-1]

[0181] The UE may also be instructed to activate / deactivate the panel via setting / indication of an association between the panel and a specific signal.

[0182] For example, in the case of supported panel-specific CSI-RS measurements, the association between CSI-RS resources and panels can also be set via RRC signaling. In the case where there are CSI-RS resources associated with a certain panel, the panel can also be activated. In the case where there are no CSI-RS resources associated with a certain panel, the panel can also be deactivated.

[0183] [Instruction method 2-2]

[0184] The UE may also be instructed to activate / deactivate a panel by determining whether a dynamic channel (PDCCH / PDSCH / PUCCH / PUSCH) is scheduled for a certain panel.

[0185] For example, if panel-specific PDCCH reception is supported, the panel may be deactivated if the UE does not detect a PDCCH associated with a panel within a certain duration specified by the specification or set by RRC signaling. Otherwise, the panel may remain activated.

[0186] Alternatively, for example, if panel-specific PDCCH reception is supported, the panel may be deactivated if the UE does not detect a PDCCH associated with the panel in a consecutive number of PDCCH receptions. Otherwise, the panel may remain activated.

[0187] The indication method 2 may also follow at least one of the following indication methods 2a, 2b.

[0188] [Instruction method 2a]

[0189] The UE may also decide to activate / deactivate the panel for each CC / BWP based on the association between the panel and a specific signal.

[0190] The activation / deactivation of the panel determined by indication method 2 may also be applied to the CC / BWP where a specific signal is located.

[0191] [Instruction method 2b]

[0192] The UE may also decide to activate / deactivate the panel for each CC group (more than one CC) / BWP group (more than one BWP) based on the association between the panel and a specific signal.

[0193] The lists up to X may be set by RRC signaling. Each list may indicate a CC group / BWP group. Activation / deactivation of the panel may also be applied to CC / BWP in the list including CC / BWP indicating method 2a.

[0194] 《Instruction Method 3》

[0195] The UE may also support both explicit indication / setting of activation / deactivation of the panel (indication method 1) and implicit indication / setting of activation / deactivation of the panel (indication method 2).

[0196] For example, when activation of a certain panel is determined according to both explicit instructions and implicit instructions, the panel may be activated. When deactivation of a certain panel is determined according to both explicit instructions and implicit instructions, the panel may be deactivated.

[0197] When activation of a certain panel is determined by explicit instruction and deactivation of the panel is determined by implicit instruction, any one of the following instruction methods 3-1, 3-2, and 3-3 may be followed.

[0198] [Instruction method 3-1]

[0199] The panel becomes active.

[0200] [Instruction method 3-2]

[0201] The panel is deactivated.

[0202] [Instruction method 3-3]

[0203] Whether the panel is activated or deactivated depends on whether it is semi-static (indication method 1-1 / 2-1) or dynamic (indication method 1-2 / 2-2).

[0204] In case both the explicit indication and the implicit indication are semi-static indications, activation / deactivation of the panel may also follow the explicit indication.

[0205] In the case where one of the explicit indication and the implicit indication is a dynamic indication, activation / deactivation of the panel may also follow the dynamic indication.

[0206] In the case where both the explicit indication and the implicit indication are dynamic indications, activation / deactivation of the panel may also follow the latest indication.

[0207] In the case where deactivation is determined according to explicit indication and activation is determined according to implicit indication, the operation may be the same as the operation in the case where activation is determined according to explicit indication and deactivation is determined according to implicit indication.

[0208] According to the first embodiment, the UE can also be instructed / set to activate / deactivate the panel appropriately.

[0209] <Second embodiment>

[0210] The activation / deactivation of the UE panel may also follow a criterion. The criterion may also be at least one of the following deactivation criteria, 2.

[0211] Deactivation Benchmark

[0212] The deactivation reference may also be at least one of the following deactivation references 1, 2, and 3.

[0213] [Deactivate benchmark 1]

[0214] The deactivation of the panel is based on the CSI-RS measurement result. The deactivation criterion 1 may also comply with any one of the following deactivation criterions 1-1 and 1-2.

[0215] [[Deactivate Baseline 1-1]]

[0216] If the measurement result (RSRP / SINR) of the best beam in a certain panel is smaller than a threshold within a certain duration, the panel may also be deactivated.

[0217] [[Deactivate benchmark 1-2]]

[0218] If the average measurement result (RSRP / SINR) of the best X beams in a certain panel is smaller than a threshold value within a certain duration, the panel may also be deactivated.

[0219] A measurement result smaller than a threshold value can also be identified by any of the following identification methods 1-1 and 1-2.

[0220] [[Identification method 1-1]]

[0221] The UE may also measure the same CSI-RS resource through multiple panels at the same time or at different times, and the UE may also identify whether the measurement result is lower than a threshold.

[0222] [[Identification method 1-2]]

[0223] The UE may also measure the same CSI-RS resource through multiple panels at the same time or at different times. The UE may also report the measurement result, and the base station may also identify whether the measurement result is lower than a threshold.

[0224] exist Figure 5 In the example, the measurement results of RSRP corresponding to the eight beams of panel #1 are 1, 2, 5, 5, 3, 4, 6, 15, and the measurement results of RSRP corresponding to the eight beams of panel #2 are 4, 4, 11, 13, 4, 5, 12, 10.

[0225] When deactivation criteria 1-1 and threshold 15 are used, the measurement result 15 of the best beam of panel #1 is above the threshold, and the measurement result 13 of the best beam of panel #2 is below the threshold. Therefore, panel #1 is activated and panel #2 is deactivated.

[0226] When using deactivation criteria 1-2, threshold 11, and X=2, the average measurement result 10.5 of the best two beams of panel #1 is less than the threshold, and the measurement result 12.5 of the best two beams of panel #2 is above the threshold. Therefore, panel #1 is deactivated and panel #2 is activated.

[0227] [Deactivate benchmark 2]

[0228] The deactivation of the panel is based on the SRS measurement. The deactivation criterion 2 may also follow any one of the following deactivation criterions 2-1 and 2-2.

[0229] [[Deactivation Baseline 2-1]]

[0230] If the measurement result (RSRP / SINR) of the best SRS in a certain panel is smaller than a threshold value within a certain duration, the panel may also be deactivated.

[0231] [[Deactivation Baseline 2-2]]

[0232] In a case where the average measurement result (RSRP / SINR) of the best X SRSs in a panel is smaller than a threshold value within a certain duration, the panel may also be deactivated.

[0233] The case where the measurement result is smaller than the threshold value can also be identified by the following identification method 2-1.

[0234] [[Identification method 2-1]]

[0235] The UE may also send the SRS multiple times (using the same spatial domain filter) through different multiple panels, and the base station may also measure the SRS and identify whether the measurement result is lower than a threshold.

[0236] [Deactivate benchmark 3]

[0237] The deactivation of the panel is based on the performance of PDCCH / PDSCH / PUCCH / PUSCH. Deactivation criterion 3 may also comply with any one of the following deactivation criterion 3-1, 3-2.

[0238] [[Deactivation benchmark 3-1]]

[0239] If the performance of PDCCH / PDSCH / PUCCH / PUSCH in a panel is less than a threshold value within a certain duration, the panel may also be deactivated. For example, the performance may also be a block error rate (BLER).

[0240] [[Deactivate benchmark 3-2]]

[0241] If the performance of PDCCH / PDSCH / PUCCH / PUSCH in one or more panels activated other than a certain panel meets the requirements during a certain duration, the panel may be deactivated. If the performance of PDCCH / PDSCH / PUCCH / PUSCH in multiple panels meets the requirements, the panel to be deactivated may be selected according to at least one of the following selection methods 1 to 4.

[0242] [[Selection Method 1]]

[0243] The panels to be deactivated are randomly selected.

[0244] [[Selection Method 2]]

[0245] The panel within the panel with the lowest RSRP / SINR for the best beam is selected.

[0246] [[Selection Method 3]]

[0247] The panel within the panel with the lowest average RSRP / SINR for the best X beams is selected.

[0248] [[Selection Method 4]]

[0249] The panel with the worst performance of PDCCH / PDSCH / PUCCH / PUSCH is selected.

[0250] The performance being smaller than the threshold or satisfying the requirement can also be identified by any of the following identification methods 3-1 and 3-2.

[0251] [[Identification method 3-1]]

[0252] The UE sends or receives PDCCH / PDSCH / PUCCH / PUSCH through multiple panels at the same time or different times. The UE can identify whether the performance of PDCCH / PDSCH / PUCCH / PUSCH is lower than the threshold, and can also identify whether the performance meets the requirements.

[0253] [[Identification method 3-2]]

[0254] The UE sends or receives PDCCH / PDSCH / PUCCH / PUSCH through multiple panels at the same time or different times. The UE can also report the results of sending or receiving. The base station can identify whether the performance of PDCCH / PDSCH / PUCCH / PUSCH is lower than the threshold, and can also identify whether the performance meets the requirements.

[0255] exist Figure 6In the example, panels #0, #1, and #2 are activated. The UE fails to receive PDSCH #0 using panel #0, succeeds to receive PDSCH #0 using panel #1, and succeeds to receive PDSCH #1 using panel #1.

[0256] When the performance of the PDSCH of panel #0 is lower than the threshold value using the deactivation criterion 3-1, panel #0 is deactivated.

[0257] When deactivation criterion 3-2 is used and the performance of PDSCH of panel #0 does not meet the requirements, and the performance of PDSCH of panel #1 meets the requirements, panel #1 is used and the requirements of PDSCH are guaranteed, so the other panels #0 and #2 are deactivated.

[0258] Activation Benchmark

[0259] The activation criteria may be at least one of the following activation criteria 1, 2, and 3.

[0260] [Activate Baseline 1]

[0261] The activation of the panel is based on the CSI-RS measurement results.

[0262] Under the following assumption 2-1-1, activation criteria 1 may also comply with any one of activation criteria 1-1 and 1-2.

[0263] [[Assumption 2-1-1]]

[0264] The UE does not use the deactivated panel to measure CSI-RS. The base station decides whether a new panel needs to be activated based on the measurement result of the currently activated panel. If the measurement result of the currently activated panel is low, the base station activates the new panel.

[0265] [[Activation Baseline 1-1]]

[0266] Within a certain duration, for one, N or all activated panels, if the measurement result (RSRP / SINR) of the best beam in the panel is smaller than a threshold, a randomly selected new panel may also be activated.

[0267] [[Activation Baseline 1-2]]

[0268] Within a certain duration, for one, N or all activated panels, if the average measurement result (RSRP / SINR) of the best X beams in the panel is smaller than a threshold, a randomly selected new panel may also be activated.

[0269] Under the following assumption 2-1-2, activation criteria 1 may also comply with any one of activation criteria 1-3 to 1-8.

[0270] [[Assumption 2-1-2]]

[0271] The UE uses the deactivated panel to measure CSI-RS. The base station decides to activate the panel if the measurement result of the panel is good (activation benchmarks 1-3, 1-4), or if the measurement result of the panel is better than the measurement result of the currently activated panel (activation benchmarks 1-5, 1-6), or if the measurement result of the currently activated panel is low (activation benchmarks 1-7, 1-8).

[0272] [[Activate Baseline 1-3]]

[0273] The panel may also be activated if the measurement result (RSRP / SINR) of the best beam within the panel is greater than a threshold within a certain duration.

[0274] [[Activate Baseline 1-4]]

[0275] If the average measurement results (RSRP / SINR) of the best X beams in the panel are greater than a threshold value within a certain duration, the panel may also be activated.

[0276] [[Activate Baseline 1-5]]

[0277] A panel may also be activated if the measurement result (RSRP / SINR) of the best beam within the panel is greater than one, N, or all of the activated panels for a certain duration.

[0278] [[Activate Baseline 1-6]]

[0279] If the average measurement results (RSRP / SINR) of the best X beams in a panel are greater than one, N or all activated panels over a certain duration, the panel may also be activated.

[0280] exist Figure 7 In the example, panel #1 is deactivated, and panels #2 and #3 are activated. The RSRP measurement results corresponding to the eight beams of panel #1 are 1, 2, 5, 5, 3, 4, 6, 15, the RSRP measurement results corresponding to the eight beams of panel #2 are 4, 4, 11, 13, 4, 5, 12, 10, and the RSRP measurement results corresponding to the eight beams of panel #3 are 4, 4, 11, 16, 4, 5, 12, 10.

[0281] When using activation criteria 1-3 and a threshold of 11, the measurement result 15 of the best beam of panel #1 is greater than the threshold, so panel #1 is activated.

[0282] Using activation criteria 1-4, a threshold of 11, and X=2, the average measurement result of the best two beams of panel #1, 10.5, is less than the threshold, so panel #1 is not activated.

[0283] Using activation criteria 1-5, N=1, the measurement result 15 of the best beam of panel #1 is greater than the measurement result 13 of the best beam of panel #2 (the measurement result of one panel). Therefore, panel #1 is activated.

[0284] When using activation criteria 1-5 and N=2, the measurement result 15 of the best beam of panel #1 is greater than the measurement result 13 of the best beam of panel #2, and less than the measurement result 16 of the best beam of panel #3. Therefore, the measurement result of panel #1 does not meet the requirement of being greater than the measurement results of both panels, so panel #1 is not activated.

[0285] Using activation criteria 1-6, X=2, N=1, the average measurement of the best two beams of panel #1, 10.5, is less than the average measurement of the best two beams of panel #2, 12.5, and less than the average measurement of the best two beams of panel #3, 14. Therefore, panel #1 is not activated.

[0286] [[Activate Baseline 1-7]]

[0287] If, for one, N or all activated panels within a certain duration, the measurement result (RSRP / SINR) of the best beam in the panel is lower than a threshold, a certain panel can also be activated. If the measurement result of the best beam of a deactivated panel is greater than a threshold, the panel with the highest measurement result among the deactivated panels can also be activated.

[0288] [[Activate Baseline 1-8]]

[0289] If, for one, N or all of the activated panels within a certain duration, the average measurement result (RSRP / SINR) of the best X beams in the panel is lower than a threshold, a certain panel may also be activated. If the average measurement result of the best X beams in the deactivated panel is greater than the threshold, the panel with the highest average measurement result among the deactivated panels may also be activated.

[0290] exist Figure 8In the example, panel #1 is deactivated and panel #2 is activated. The RSRP measurement results corresponding to the eight beams of panel #1 are 1, 2, 5, 5, 3, 4, 6, 15, and the RSRP measurement results corresponding to the eight beams of panel #2 are 4, 4, 11, 13, 4, 5, 12, 10.

[0291] When using activation criteria 1-7 and threshold 14, the measurement result 13 of the best beam of panel #2 is smaller than the threshold. The measurement result 15 of the best beam of panel #1 is greater than the threshold, so panel #1 is activated.

[0292] Using activation criteria 1-8, threshold 14, X = 2, the average measurement of the best two beams of panel #2 is 12.5 less than the threshold. The average measurement of the best two beams of panel #1 is 10.5 less than the threshold, so panel #1 is not activated.

[0293] [Activate Baseline 2]

[0294] The activation of the panels is based on the SRS measurements.

[0295] Under the following assumption 2-2-1, activation criteria 2 may also comply with either activation criteria 2-1 or 2-2.

[0296] [[Assumption 2-2-1]]

[0297] The UE does not use the deactivated panel to send SRS. The base station decides whether a new panel needs to be activated based on the measurement result of the currently activated panel. If the measurement result of the currently activated panel is low, the base station activates the new panel.

[0298] [[Activation Baseline 2-1]]

[0299] Within a certain duration, for one, N, or all activated panels, if the measurement result (RSRP / SINR) of the best SRS in the panel is smaller than a threshold, a randomly selected new panel may also be activated.

[0300] [[Activation Baseline 2-2]]

[0301] Within a certain duration, for one, N or all activated panels, if the average measurement result (RSRP / SINR) of the best X SRSs in the panel is smaller than a threshold, a randomly selected new panel may also be activated.

[0302] Under the following assumption 2-2-2, activation criteria 2 may also comply with any one of activation criteria 2-3 to 2-8.

[0303] [[Assumption 2-2-2]]

[0304] The UE may also be configured to send SRS using a deactivated panel.

[0305] [[Activation Baseline 2-3]]

[0306] If the measurement result (RSRP / SINR) of the best SRS in the panel is greater than a threshold within a certain duration, the panel may also be activated.

[0307] [[Activate Baseline 2-4]]

[0308] In a case where the average measurement result (RSRP / SINR) of the best X SRSs in a panel is greater than a threshold within a certain duration, the panel may also be activated.

[0309] [[Activate Baseline 2-5]]

[0310] If the best SRS measurement result (RSRP / SINR) in a panel is greater than one, N or all activated panels within a certain duration, the panel may also be activated.

[0311] [[Activate Baseline 2-6]]

[0312] If the average measurement results (RSRP / SINR) of the best X SRSs in a panel within a certain duration is greater than that of one, N or all activated panels, the panel may also be activated.

[0313] [[Activate Baseline 2-7]]

[0314] If, for one, N or all activated panels within a certain duration, the measurement result (RSRP / SINR) of the best SRS in the panel is lower than a threshold, a certain panel can also be activated. If the measurement result of the best SRS of a deactivated panel is greater than a threshold, the panel with the highest measurement result among the deactivated panels can also be activated.

[0315] [[Activate Baseline 2-8]]

[0316] If, for one, N or all of the activated panels within a certain duration, the average measurement result (RSRP / SINR) of the best X SRSs in the panel is lower than a threshold, a certain panel may also be activated. If the average measurement result of the best X SRSs in the deactivated panel is greater than the threshold, the panel with the highest average measurement result among the deactivated panels may also be activated.

[0317] [Activate benchmark 3]

[0318] The activation of the panel is based on the performance of PDCCH / PDSCH / PUCCH / PUSCH.

[0319] Under the following assumption 2-3-1, activation criteria 3 may also comply with either activation criteria 3-1 or 3-2.

[0320] [[Assumption 2-3-1]]

[0321] The UE does not use the deactivated panel to receive PDCCH / PDSCH or send PUCCH / PUSCH. The base station decides whether a new panel needs to be activated based on the performance of the currently activated panel.

[0322] [[Activation Baseline 3-1]]

[0323] Within a certain duration, for one, N or all activated panels, if the performance of the best beam within the panel is smaller than a threshold (the error rate (BLER) is larger than a threshold), a randomly selected new panel may also be activated.

[0324] [[Activation Baseline 3-2]]

[0325] If the performance of the currently activated panel PDCCH / PDSCH / PUCCH / PUSCH does not meet the requirements within a certain duration, a randomly selected new panel may also be activated.

[0326] For example, when the performance using the activated panel is the worst and the performance is guaranteed using other activated panels, the new panel is not activated.

[0327] exist Fig. 9 In the example, panels #0 and #1 are activated, and panel #2 is deactivated. The UE fails to receive PDSCH #0 using panel #0, fails again to receive PDSCH #0 using panel #0, and succeeds to receive PDSCH #1 using panel #1.

[0328] When the activation criteria 3-1, N=1, and the performance of the PDSCH of panel #0 is lower than the threshold, panel #2 is deactivated.

[0329] When the activation criterion 3-2 is used, the performance of the PDSCH of panel #0 does not satisfy the requirements, and the performance of the PDSCH of panel #1 satisfies the requirements, panel #2 is not activated.

[0330] According to the second embodiment, by following the reference, the UE can appropriately perform activation / deactivation of the UE panel.

[0331] <Third embodiment>

[0332] The UE may also support the transmission or reception of a specific signal using a deactivated panel. It may also be specified whether the UE supports DL reception and UL transmission using a deactivated UE panel. For example, Fig.10 As shown, the assumption 3-1 and any one of the operations 1-1, 1-2, 2-1, and 2-2 may be used, or the assumption 3-2 and any one of the operations 3-1 to 3-4 may be used.

[0333] [Assumption 3-1]

[0334] It is also possible to perform activation / deactivation of a panel for DL ​​reception and activation / deactivation of a panel for UL transmission separately.

[0335] Under assumption 3-1, for a panel deactivated for DL ​​reception, any one of operations 1-1 and 1-2 may also be supported.

[0336] [[Operation 1-1]]

[0337] The UE may also not support CSI-RS reception using a deactivated panel and PDCCH / PDSCH reception using a deactivated panel.

[0338] [[Operation 1-2]]

[0339] The UE may also support CSI-RS reception using a deactivated panel but not support PDCCH / PDSCH reception using a deactivated panel.

[0340] Under assumption 3-1, for a panel that is deactivated for UL reception, any one of operations 2-1 and 2-2 may also be supported.

[0341] [[Operation 2-1]]

[0342] The UE may also not support SRS transmission using a deactivated panel and PUCCH / PUSCH transmission using a deactivated panel.

[0343] [[Operation 2-2]]

[0344] The UE may also support SRS transmission using a deactivated panel but not support PUCCH / PUSCH transmission using a deactivated panel.

[0345] [Assumption 3-2]

[0346] The activation / deactivation of the panel for DL ​​reception and the activation / deactivation of the panel for UL transmission may also be performed jointly.

[0347] Under assumption 3-2, any one of operations 3-1 to 3-4 can also be supported.

[0348] [[Operation 3-1]]

[0349] The UE may also not support CSI-RS reception using a deactivated panel, PDCCH / PDSCH reception using a deactivated panel, SRS transmission using a deactivated panel, and PUCCH / PUSCH transmission using a deactivated panel.

[0350] [[Operation 3-2]]

[0351] The UE may also support CSI-RS reception using a deactivated panel, but does not support PDCCH / PDSCH reception using a deactivated panel, SRS transmission using a deactivated panel, or PUCCH / PUSCH transmission using a deactivated panel.

[0352] [[Operation 3-3]]

[0353] The UE may also support SRS transmission using a deactivated panel, but does not support CSI-RS reception using a deactivated panel, PDCCH / PDSCH reception using a deactivated panel, or PUCCH / PUSCH transmission using a deactivated panel.

[0354] [[Operation 3-4]]

[0355] The UE may also support CSI-RS reception using a deactivated panel and SRS transmission using a deactivated panel, but not support PDCCH / PDSCH reception using a deactivated panel and PUCCH / PUSCH transmission using a deactivated panel.

[0356] According to the third embodiment, the UE can properly perform operations on the deactivated panel.

[0357] <Fourth embodiment>

[0358] The UE may also be implicitly instructed to activate a UE panel. The UE may also receive information about an association between any one of the multiple panels and a specific signal. The UE may also activate one of the multiple panels based on the information. The implicit instruction may also follow at least one of the following activation methods 1 and 2.

[0359] 《Activation Method 1》

[0360] The UE may also be instructed to activate a certain panel via an association between the panel and a specific signal that is set / indicated through RRC signaling / MAC CE.

[0361] Activation method 1 may also be at least one of the following activation methods 1-1 to 1-7.

[0362] [Activation method 1-1]

[0363] The activation of a certain panel may also be indicated via an association between the panel and CSI-RS resources that is set / indicated through RRC signaling / MAC CE.

[0364] Here, the following assumptions can also be used.

[0365] 〔assumed〕

[0366] The association between a panel and a CSI-RS resource is set / indicated by at least one of RRC signaling and MAC CE. The panel may also be associated with at least one of a CSI report configuration (CSI-reportConfig), a CSI resource configuration (CSI-ResourceConfig), a CSI-RS resource set (CSI-RS-resourceSet), a CSI-RS resource (CSI-RS-resource), and a TCI state (TCI-state).

[0367] Activation method 1-1 may also be at least one of the following activation methods 1-1-1 to 1-1-3.

[0368] [[Activation method 1-1-1]]

[0369] In case a panel is associated with a CSI-RS resource, the panel is activated.

[0370] [[Activation method 1-1-2]]

[0371] In the case where a certain panel is associated with a CSI-RS resource, the panel is activated. The CSI-RS resource is associated with an activated CSI-RS resource set.

[0372] Activation method 1-1-2 may also be used for at least one of semi-persistent (SP)-CSI-RS and aperiodic (AP)-CSI-RS. For SP-CSI-RS resources, the activated CSI-RS resource set may also be an SP-CSI-RS resource set activated by MAC CE. For AP-CSI-RS, the activated CSI-RS resource set may also be an AP-CSI-RS resource set triggered by DCI.

[0373] [[Activation method 1-1-3]]

[0374] In the case where a certain panel is associated with a CSI-RS resource, the panel is activated. The CSI-RS resource is associated with an activated CSI report.

[0375] For periodic (P)-CSI-RS resources, the activated CSI report can be either a P-CSI report, an SP-CSI report activated by MAC CE, or an AP-CSI report triggered by DCI. For SP-CSI-RS resources, the activated CSI report can be either an SP-CSI report activated by MAC CE, or an AP-CSI report triggered by DCI. For AP-CSI-RS resources, the activated CSI report can also be an AP-CSI report triggered by DCI.

[0376] [Activation method 1-2]

[0377] The activation of a certain panel may also be indicated via an association between the panel and the PDCCH that is set / indicated through RRC signaling / MAC CE.

[0378] Here, the following assumptions can also be used.

[0379] 〔assumed〕

[0380] The association between a certain panel and PDCCH is set / indicated by at least one of RRC signaling and MAC CE. The panel may also be associated with at least one of CORESET and TCI state.

[0381] In the case where the association between a certain panel and CORESET is set / indicated through at least one of RRC signaling and MAC CE, the panel may also be activated.

[0382] The association between a panel and CORESET is set / indicated through at least one of RRC signaling and MAC CE and may also be at least one of the following: the panel is directly associated with the CORESET, the panel is associated with one of several TCI states set for the CORESET in the RRC signaling, and the panel is associated with the activated TCI state in the MAC CE for the CORESET.

[0383] [Activation Method 1-3]

[0384] The activation of a certain panel may also be indicated via an association between the panel and the PDSCH that is set / indicated through RRC signaling / MAC CE.

[0385] Here, the following assumptions can also be used.

[0386] 〔assumed〕

[0387] The association between a certain panel and PDSCH is set / indicated by at least one of RRC signaling and MAC CE. The panel may also be associated with a TCI state.

[0388] In the case where the association between a certain panel and PDSCH is set / indicated through at least one of RRC signaling and MAC CE, the panel may also be activated.

[0389] The association between a panel and PDSCH is set / indicated through at least one of RRC signaling and MAC CE and may also be at least one of the following: the panel is associated with one of several TCI states set in the PDSCH setting (PDSCH-Config) in the RRC signaling and the panel is associated with one of several TCI states activated in the MAC CE for PDSCH.

[0390] [Activation Method 1-4]

[0391] The activation of a panel may also be indicated via an association between the panel and SRS that is set / indicated through RRC signaling / MAC CE.

[0392] Here, the following assumptions can also be used.

[0393] 〔assumed〕

[0394] The association between a panel and an SRS resource is set / indicated through at least one of RRC signaling and MAC CE. The panel may also be associated with at least one of an SRS resource set (SRS-resourceSet), an SRS resource (SRS-resource), and SRS spatial relationship information (SRS-spatialRelationInfo).

[0395] The activation method 1-4 may be at least one of the following activation methods 1-4-1 and 1-4-2.

[0396] [[Activation method 1-4-1]]

[0397] When a panel is associated with an SRS resource, the panel is activated.

[0398] [[Activation method 1-4-2]]

[0399] When a panel is associated with an activated SRS resource, the panel is activated.

[0400] For at least one of SP-SRS and AP-SRS, activation method 1-4-2 may also be used. For SP-SRS resources, the activated SRS resources may also be SP-SRS resources activated by MAC CE. For AP-SRS, the activated SRS resources may also be AP-SRS resources triggered by DCI.

[0401] Activation methods 1-4 can also be applied to one or more SRS usages including beam management (BM), codebook-based transmission (codebook (CB)), non-codebook-based transmission (nonCodebook (NCB)), and antenna switching.

[0402] [Activation Method 1-5]

[0403] The activation of a certain panel may also be indicated via an association between the panel and the PUCCH that is set / indicated through RRC signaling / MAC CE.

[0404] Here, the following assumptions can also be used.

[0405] 〔assumed〕

[0406] The association between a panel and a PUCCH is set / indicated through at least one of RRC signaling and MAC CE. The panel may also be associated with at least one of a PUCCH resource set (PUCCH-ResourceSet), a PUCCH resource (PUCCH-Resource), and PUCCH spatial relationship information (PUCCH-spatialRelationInfo).

[0407] In the case where the association between a certain panel and PUCCH resources is set / indicated through at least one of RRC signaling and MAC CE, the panel may also be activated.

[0408] The association between a panel and a PUCCH resource is set / indicated through at least one of RRC signaling and MAC CE and may also be at least one of the following: the panel is directly associated with the PUCCH resource, the panel is associated with one of several PUCCH spatial relationship information set in the PUCCH setting information (PUCCH-Config), and the panel is associated with PUCCH spatial relationship information activated by the MAC CE for the PUCCH resource.

[0409] [Activation Method 1-6]

[0410] The activation of a panel may also be indicated via an association between a certain panel and PUSCH that is set / indicated through RRC signaling / MAC CE.

[0411] The activation method 1-6 may be at least one of the following activation methods 1-6-1 and 1-6-2.

[0412] [[Activation method 1-6-1]]

[0413] The same mechanism as that of an SRS for which the SRS purpose is at least one of codebook-based transmission and non-codebook-based transmission is used.

[0414] [[Activation method 1-6-2]]

[0415] When the UL TCI state is supported and the association between a panel and PUSCH is set / indicated by at least one of RRC signaling and MAC CE, the panel is activated.

[0416] The association between a panel and PUSCH is set / indicated through at least one of RRC signaling and MAC CE and may also be at least one of the following: the panel is associated with one of several TCI states set for PUSCH in RRC signaling, and the panel is associated with one of several TCI states activated for PUSCH in MAC CE.

[0417] [Activation Method 1-7]

[0418] It is also possible to use a combination of at least two of the activation methods 1-1 to 1-6.

[0419] 《Activation Method 2》

[0420] The activation of a certain panel may also be indicated by whether a channel (PDCCH / PDSCH / PUCCH / PUSCH, dynamic channel / semi-persistent channel) is scheduled on the panel.

[0421] For PDSCH / PUSCH / PUCCH, a mapping between a certain panel and the TCI / QCL / spatial relationship of PDSCH / PUSCH / PUCCH may also be set. DCI may also schedule PDSCH / PUSCH / PUCCH. The UE may also identify which panel is activated for the reception or transmission of the scheduled PDSCH / PUSCH / PUCCH.

[0422] For example, for PDSCH, associations of TCI state #0 and panel #1 and associations of TCI state #1 and panel #2 are set. When DCI schedules PDSCH together with an indication of TCI state #0, the UE interprets (recognizes) that activation of panel #1 is indicated for reception of the PDSCH.

[0423] TCI, QCL, spatial relationship, time resources (symbols, time slots, etc.), and frequency resources (subcarriers, resource blocks, etc.) can also be replaced with each other.

[0424] Activation method 2 may also be at least one of the following activation methods 2-1 to 2-5.

[0425] [Activation method 2-1]

[0426] The activation of a certain panel may also be indicated by whether a dynamic PDCCH is received on the panel.

[0427] Here, the following assumptions can also be used.

[0428] 〔assumed〕

[0429] Panel-specific PDCCH reception is supported. A panel may also be associated with at least one of CORESET and TCI states.

[0430] In the case where deactivation of the panel is applied only to UL transmission, activation method 2-1 may also be used. A panel deactivated for UL transmission may also be used in DL reception.

[0431] In case a PDCCH associated with a certain panel is detected by the UE, the panel may also be activated.

[0432] In case the UE monitors the PDCCH on the CORESET associated with a certain panel, the UE may also activate the corresponding panel.

[0433] A mapping of at least one of the CORESET, the search space, and the TCI state of the CORESET to the panel ID may also be configured. In the case where the UE monitors the PDCCH on the search space / CORESET associated with a certain panel, the UE may also activate the corresponding panel for the monitoring of the PDCCH.

[0434] [Activation method 2-2]

[0435] The activation of a certain panel may also be indicated by whether a dynamic PDSCH is received on the panel.

[0436] Here, the following assumptions can also be used.

[0437] 〔assumed〕

[0438] Support panel specific PDSCH reception. Panels can be associated with TCI states and can also be indicated via DCI.

[0439] In the case where the deactivation of the panel is applied only to UL transmission, activation method 2-2 can also be used. A panel deactivated for UL transmission can also be used in DL reception. In the case of transmission on a panel with activated PDCCH, the PDSCH using the deactivated panel can also be indicated by DCI.

[0440] In the case of a scheduling grant instructing the UE to receive a PDSCH using a certain panel, the panel may be activated. The scheduling grant may be a DCI for scheduling dynamic PDSCH or an activation DCI for semi-persistent scheduling (SPS, DL-SPS).

[0441] [Activation method 2-3]

[0442] The activation of a certain panel may also be indicated by whether the dynamic PUCCH on the panel is scheduled.

[0443] Here, the following assumptions can also be used.

[0444] 〔assumed〕

[0445] Panel-specific PUCCH transmission is supported. A panel may also be associated with at least one of a PUCCH resource set, a PUCCH resource, and PUCCH spatial relation information.

[0446] When the UE is configured / instructed to transmit PUCCH on a certain panel, the panel may also be activated. PUCCH transmission may be semi-persistent PUCCH transmission or dynamic PUCCH transmission.

[0447] In the present disclosure, semi-persistent PUCCH transmission is a PUCCH that is scheduled semi-persistently, for example, it may also be a PUCCH transmission that carries SP-CSI on the PUCCH. In the present disclosure, dynamic PUCCH transmission is a PUCCH that is scheduled dynamically, for example, it may also be a PUCCH transmission that carries at least one of HARQ-ACK and A-CSI on the PUCCH.

[0448] [Activation Method 2-4]

[0449] The activation of a certain panel may also be indicated by whether a dynamic PUSCH on the panel is scheduled.

[0450] Here, the following assumptions can also be used.

[0451] 〔assumed〕

[0452] Supports panel-specific PUSCH transmission. A panel can be associated with at least one of the UL TCI state and SRS, and can also be indicated through DCI.

[0453] The panel may also be activated when the UE receives a scheduling grant indicating the transmission of a PUSCH on a panel. The scheduling grant may be a DCI for scheduling dynamic PUSCH, an RRC configuration of a type 1 configuration grant (configured grant (CG)), or an activation DCI of a type 2 configuration grant.

[0454] [Activation Method 2-5]

[0455] It is also possible to use a combination of at least two of the activation methods 2-1 to 2-4.

[0456] According to the fourth embodiment, the UE can appropriately activate the panel.

[0457] <Fifth embodiment>

[0458] The UE may also be implicitly instructed to deactivate a UE panel. The UE may also receive information about an association between any one of the multiple panels and a specific signal. The UE may also deactivate one of the multiple panels based on the information. The implicit instruction may also follow at least one of the following deactivation methods 1 and 2.

[0459] 《Deactivation Method 1》

[0460] The UE may also be instructed to deactivate the panel via an association between the panel and a specific signal that is set / indicated through at least one of RRC signaling and MAC CE.

[0461] Deactivation method 1 may also be at least one of the following deactivation methods 1-1 and 1-2.

[0462] [Deactivation method 1-1]

[0463] A panel may also be deactivated in the event that no association between the panel and a particular signal is set / indicated.

[0464] The deactivation method 1-1 may also be at least one of the following deactivation methods 1-1-1 and 1-1-2.

[0465] [[Deactivation Method 1-1-1]]

[0466] In the case where the association between a certain panel and a specific signal is not set / indicated through at least one of RRC signaling and MAC CE, the panel may also be deactivated.

[0467] exist Fig.11A In the example of , panels #0 and #1 are activated. In this state, the UE receives information indicating CSI-RS resource #0 associated with panel #0 and CSI-RS resource #1 associated with panel #0. Here, there is no information about the association between panel #1 and CSI-RS resource in the information indicating the association between the panel and the CSI-RS resource, so the UE deactivates panel #1.

[0468] [[Deactivation Method 1-1-2]]

[0469] For at least one specific signal of CSI-RS and SRS, the panel may also be deactivated if the association between a panel and the activated resources is not set / indicated through at least one of RRC signaling and MAC CE.

[0470] For CSI-RS, the activated resource may also be a CSI-RS resource associated with an activated CSI resource set. For SP-CSI-RS resources, the activated CSI resource set may also be an SP-CSI-RS resource set activated by MAC CE. For AP-CSI-RS resources, the activated CSI resource set may also be an AP-CSI-RS resource set triggered by DCI.

[0471] For at least one of the SP-CSI-RS and the AP-CSI-RS, the deactivation method 1-1-2 may also be used.

[0472] exist Fig. 11B In the example, panels #0 and #1 are activated. In this state, the UE receives information indicating SP-CSI-RS resource #0 associated with panel #0 and SP-CSI-RS resource #1 associated with panel #0, and receives information to activate SP-CSI-RS resource #0 and deactivate SP-CSI-RS resource #1. Here, there is no CSI-RS resource associated with panel #1 among the activated CSI-RS resources, so the UE deactivates panel #1.

[0473] For CSI-RS, the activated resource may also be a CSI-RS resource associated with an activated CSI report. For P-CSI-RS resources, the activated CSI report may be a P-CSI report, an SP-CSI report activated by MAC CE, or an AP-CSI report triggered by DCI. For SP-CSI-RS resources, the activated CSI report may be an SP-CSI report activated by MAC CE, or an AP-CSI report triggered by DCI. For AP-CSI-RS resources, the activated CSI report may also be an AP-CSI report triggered by DCI.

[0474] For SRS, the activated resource may also be an activated SRS resource. For SP-SRS resources, the activated SRS resources may also be SRS resources activated by MAC CE. For AP-SRS resources, the activated SRS resources may also be AP-SRS resources triggered by DCI.

[0475] AP-CSI-RS / AP-SRS is a one shot trigger. Therefore, when AP-CSI-RS / AP-SRS is triggered, the panel associated with AP-CSI-RS / AP-SRS may be activated, and the panel may be deactivated after P-CSI-RS is received / AP-SRS is sent.

[0476] [Deactivation Method 1-2]

[0477] A panel may also be deactivated if no association between the panel and a specific signal has been set / indicated for a certain duration.

[0478] Deactivation method 1-2 may also be at least one of the following deactivation methods 1-2-1 and 1-2-2.

[0479] [[Deactivation method 1-2-1]]

[0480] If the association between a panel and a specific signal is not set / indicated through at least one of RRC signaling and MACCE within a certain duration, the panel may also be deactivated.

[0481] It is also possible to maintain a timer for each panel that is specified by the specification or set by RRC signaling. In the case where the association between a panel and a specific signal is not set, the timer corresponding to the panel can also be started. In the case where the association between the panel and the specific signal is set, the timer corresponding to the panel can also be reset. In the case where the timer corresponding to a panel expires, the panel can also be deactivated.

[0482] exist Fig.12 In the example, panels #0 and #1 are activated. In this state, the UE receives information indicating CSI-RS resource #0 associated with panel #0 and CSI-RS resource #1 associated with panel #0. Here, there is no information about the association between panel #1 and CSI-RS resource in the information indicating the association between the panel and the CSI-RS resource, so the UE starts the timer corresponding to panel #1.

[0483] Thereafter, for measurement, the base station changes panel #0 associated with CSI-RS resource #0 to panel #1. Before the timer expires, the UE receives information indicating CSI-RS resource #0 associated with panel #0 and CSI-RS resource #1 associated with panel #1. Here, the information indicating the association between the panel and the CSI-RS resource includes information related to the association between panel #1 and the CSI-RS resource, so the UE resets the timer corresponding to panel #1.

[0484] Thereafter, in the case where the measurement result is poor, the base station returns panel #1 associated with CSI-RS resource #0 to panel #0. The UE receives information indicating CSI-RS resource #0 associated with panel #0 and CSI-RS resource #1 associated with panel #0. Here, there is no information related to the association between panel #1 and CSI-RS resource in the information indicating the association between the panel and the CSI-RS resource, so the UE starts the timer corresponding to panel #1.

[0485] Thereafter, if the timer expires, the UE deactivates panel #1.

[0486] By using a timer, unnecessary deactivations and activations can be avoided.

[0487] [[Deactivation method 1-2-2]]

[0488] For at least one specific signal of CSI-RS and SRS, if the association between a panel and the activated resources is not set / indicated by at least one of RRC signaling and MAC CE within a certain duration, the panel can also be deactivated.

[0489] Timers specified by the specification or set by RRC signaling may also be maintained for each panel. A timer corresponding to a panel may also be started if the association between the panel and the activated resource is not set. A timer corresponding to the panel may also be reset if the association between the panel and the activated resource is set. A panel may also be deactivated if the timer corresponding to the panel expires.

[0490] For CSI-RS, the activated resource may also be a CSI-RS resource associated with an activated CSI resource set. For SP-CSI-RS resources, the activated CSI resource set may also be an SP-CSI-RS resource set activated by MAC CE. For AP-CSI-RS resources, the activated CSI resource set may also be an AP-CSI-RS resource set triggered by DCI.

[0491] For CSI-RS, the activated resource may also be a CSI-RS resource associated with an activated CSI report. For P-CSI-RS resources, the activated CSI report may be a P-CSI report, an SP-CSI report activated by MAC CE, or an AP-CSI report triggered by DCI. For SP-CSI-RS resources, the activated CSI report may be an SP-CSI report activated by MAC CE, or an AP-CSI report triggered by DCI. For AP-CSI-RS resources, the activated CSI report may also be an AP-CSI report triggered by DCI.

[0492] exist Fig.13A In the example, panels #0 and #1 are activated. In this state, the UE receives information indicating SP-CSI-RS resource #0 associated with panel #0 and SP-CSI-RS resource #1 associated with panel #0, and receives information to activate SP-CSI-RS resource #0 and deactivate SP-CSI-RS resource #1. Here, there is no CSI-RS resource associated with panel #1 among the activated CSI-RS resources, so the UE starts the timer corresponding to panel #1.

[0493] Thereafter, for measurement, the base station changes panel #0 associated with CSI-RS resource #0 to panel #1. Before the timer expires, the UE receives information indicating CSI-RS resource #0 associated with panel #0 and CSI-RS resource #1 associated with panel #1. Here, the information indicating the association between the panel and the CSI-RS resource contains information related to the association between panel #1 and the CSI-RS resource, so the UE resets the timer corresponding to panel #1.

[0494] exist Fig. 13BIn the example, panels #0 and #1 are activated. In this state, the UE receives information indicating the P-CSI-RS resource #0 associated with panel #0 and the AP-CSI-RS resource #1 associated with panel #0, and receives information triggering the AP-CSI-RS resource #1. Here, there is no CSI-RS resource associated with panel #1 among the activated CSI-RS resources, so the UE starts the timer corresponding to panel #1. Here, the UE recognizes the set P-CSI-RS resource as the activated CSI-RS resource, and does not recognize the triggered AP-CSI-RS resource as the activated CSI-RS resource.

[0495] Thereafter, if the timer expires, the UE deactivates panel #1.

[0496] For SRS, the activated resource may also be an activated SRS resource. For SP-SRS resources, the activated SRS resources may also be SRS resources activated by MAC CE. For AP-SRS resources, the activated SRS resources may also be AP-SRS resources triggered by DCI.

[0497] AP-CSI-RS / AP-SRS is a single trigger. Therefore, when AP-CSI-RS / AP-SRS is triggered, the panel associated with AP-CSI-RS / AP-SRS can be activated, and the panel can be deactivated after AP-CSI-RS reception / AP-SRS transmission.

[0498] Deactivation Method 2

[0499] The deactivation of a certain panel may also be indicated by whether a channel (PDCCH / PDSCH / PUCCH / PUSCH, dynamic channel / semi-persistent channel) is scheduled on the panel.

[0500] Deactivation method 2 may also be at least one of the following deactivation methods 2-1 and 2-2.

[0501] [Deactivation method 2-1]

[0502] A panel may also be deactivated if the UE does not detect a PDCCH associated with a panel for a certain duration, or if the UE does not receive a scheduling grant indicating the use of PDSCH / PUSCH of the panel for a certain duration, or if the UE does not receive a setup / activation of semi-persistent PUCCH transmission associated with the panel for a certain duration, or if the UE does not receive an indication of dynamic PUCCH transmission associated with the panel for a certain duration.

[0503] Timers specified by the specification or set by RRC signaling may also be maintained for each panel. The timers may also be started after RRC setting. The timer corresponding to a panel may also be restarted if the UE detects a PDCCH associated with a panel, or if the UE receives a scheduling grant indicating the use of PDSCH / PUSCH for the panel, or if the UE receives setup / activation of semi-persistent PUCCH transmission associated with the panel, or if the UE receives an indication of dynamic PUCCH transmission associated with the panel.

[0504] exist Fig.14 In the example of , the UE starts the timer corresponding to panel #0 according to the RRC setting. Thereafter, if a PDCCH using panel #0 is detected, the UE restarts the timer corresponding to panel #0. Thereafter, if the UE does not detect a PDCCH associated with panel #0 and the timer corresponding to panel #0 expires, panel #0 is deactivated.

[0505] For PDSCH, the scheduling grant can be either the DCI for scheduling dynamic PDSCH or the activation DCI for semi-persistent scheduling (SPS, DL-SPS).

[0506] When the UE receives an activation DCI indicating SPS reception using the PDSCH of a certain panel, the timer corresponding to the panel may also be reset and stopped. When the UE receives a deactivation DCI indicating SPS reception using the panel, the timer corresponding to the panel may also be restarted.

[0507] exist Fig.15A In the example of , the UE starts the timer corresponding to panel #0 according to the RRC setting. Thereafter, if a DCI is received for scheduling a dynamic PDSCH using panel #0, the UE restarts the timer corresponding to panel #0. Thereafter, if the UE does not receive a scheduling grant for the PDSCH using panel #0, the timer corresponding to panel #0 expires, and panel #0 is deactivated.

[0508] exist Fig. 15B In the example of , the UE starts the timer corresponding to panel #0 according to the RRC setting. Thereafter, if activation of SPS using the PDSCH of panel #0 is received, the UE resets and stops the timer corresponding to panel #0. Thereafter, if deactivation of SPS is received, the UE starts the timer corresponding to panel #0. Thereafter, if scheduling permission using the PDSCH of panel #0 is not received and the timer corresponding to panel #0 expires, panel #0 is deactivated.

[0509] For PUSCH, the scheduling grant can be either a DCI for scheduling dynamic PUSCH, an RRC setting for a type 1 configuration grant (CG), or an activation DCI for a type 2 configuration grant.

[0510] When the UE receives a CG sent by PUSCH indicating the use of a certain panel (setting of type 1 CG, activation DCI of type 2 CG), the timer corresponding to the panel can also be reset and stopped. When the UE receives a deactivation of the CG using the panel, the timer corresponding to the panel can also be restarted.

[0511] When the UE receives the setting / activation of semi-persistent PUCCH transmission using a certain panel, the timer corresponding to the panel can also be reset and stopped.

[0512] Deactivation method 2-1 may also be supported for one or more (one or more types) of PDCCH, PDSCH, PUCCH, and PUSCH channels. Timers for multiple channels may be maintained jointly or separately. When the timers for multiple channels are separated, the panel may also be deactivated when one, N, or all of the timers corresponding to multiple channels of a panel expire.

[0513] [Deactivation method 2-2]

[0514] In case the UE is not scheduled on a channel on a panel among a consecutive number of channels (PDCCH / PDSCH / PUCCH / PUSCH, dynamic channels / semi-persistent channels, specific information), the panel may also be deactivated.

[0515] In the detection (reception) of k consecutive specific information, the panel may also be deactivated if the UE does not receive the PDCCH associated with a panel, or if the UE does not receive the scheduling permission indicating the use of PDSCH / PUSCH of the panel, or if the UE does not receive the setting / activation of semi-continuous PUCCH transmission associated with the panel, or if the UE does not receive the indication of dynamic PUCCH transmission associated with the panel.

[0516] The specific information may be a setting / indication for scheduling permission or PUCCH transmission for PDCCH or PDSCH / PUSCH and detected by the UE.

[0517] A counter of the number of specific information may also be maintained for each panel. At least one of an initial value and an ending value of the counter may be specified by the specification or may be set by RRC signaling.

[0518] If specific information not associated with a certain panel is detected by the UE, the value of the counter corresponding to the panel may be increased by 1 or decreased by 1. In the case that specific information associated with the panel is detected by the UE, the counter corresponding to the panel may also be reset. In the case that the counter corresponding to the panel reaches the end value, the panel may also be deactivated.

[0519] exist Fig.16 In the example, the counter value k corresponding to each panel #0, #1 is an initial value of 2 and an end value of 0. If a PDCCH not associated with panel #1 (PDCCH associated with panel #0) is received, the UE reduces the counter value corresponding to panel #1 by 1. If the counter value corresponding to panel #1 reaches the end value 0, the UE deactivates panel #1. If a PDCCH associated with panel #1 is received, the UE resets the counter value corresponding to the panel to the initial value 2.

[0520] For PDSCH, the scheduling grant can be either the DCI for scheduling dynamic PDSCH or the activation DCI for semi-persistent scheduling (SPS, DL-SPS).

[0521] When the UE receives an activation DCI indicating SPS received using the PDSCH of a certain panel, the counter corresponding to the panel may also be reset to an initial value. The value of the counter corresponding to the panel may also remain unchanged until the UE receives a deactivation DCI for SPS using the panel.

[0522] In the case where the UE receives an activation DCI indicating an SPS for PDSCH reception not associated with the panel, the value of the counter corresponding to the panel may be increased by 1, decreased by 1, or may remain unchanged.

[0523] exist Fig.17 In the example, the counter value corresponding to each panel #0 and #1 is an initial value of 2 and an end value of 0. Thereafter, if an activation of an SPS not associated with a certain panel #1 is received (activation of an SPS using panel #0), the UE can either reduce the value of the counter corresponding to panel #1 by 1 (Example 1) or keep it unchanged (Example 2). In this case, the UE can also reset the counter corresponding to panel #0 to the initial value.

[0524] Thereafter, if a DCI for scheduling a dynamic PDSCH using panel #1 is received, the UE may also reset the counter value corresponding to panel #1 to the initial value 2. Thereafter, if a DCI for deactivating the SPS using panel #1 and scheduling a dynamic PDSCH using panel #1 is received, the UE may also reset the counter value corresponding to panel #0 to the initial value 2. In this case, the UE may either reduce the value of the counter corresponding to panel #0 by 1 (Example 1) or keep it unchanged (Example 2).

[0525] For PUSCH, the scheduling grant can be either a DCI for scheduling dynamic PUSCH, an RRC setting for a type 1 configuration grant (CG), or an activation DCI for a type 2 configuration grant.

[0526] When the UE receives a CG sent by PUSCH indicating the use of a certain panel (setting of type 1 CG, activation DCI of type 2 CG), the counter corresponding to the panel may also be reset to the initial value. The value of the counter corresponding to the panel may also remain unchanged until the UE receives the deactivation of the CG using the panel.

[0527] When the UE receives a CG indicating a PUSCH transmission that is not associated with the panel (setting of type 1CG, activation DCI of type 2CG), the value of the counter corresponding to the panel can be increased by 1, decreased by 1, or remain unchanged.

[0528] In the case where the UE receives a setting / activation of semi-persistent PUCCH transmission using a certain panel, the counter corresponding to the panel is reset to the initial value, and the value of the counter may remain unchanged. In the case where the UE receives a setting / activation of semi-persistent PUCCH transmission not associated with the panel, the value of the counter corresponding to the panel may be increased by 1, decreased by 1, or may remain unchanged.

[0529] Deactivation method 2-2 may also be supported for one or more (one or more types) of channels among PDCCH, PDSCH, PUCCH and PUSCH. Counters for multiple channels may be maintained jointly or separately. In the case where the timers for multiple channels are separated, the panel may also be deactivated when one, N or all of the counters corresponding to multiple channels of a panel reach the end value.

[0530] According to the fifth embodiment, the UE can appropriately deactivate the panel.

[0531] (Wireless Communication System)

[0532] Hereinafter, a configuration of a wireless communication system according to an embodiment of the present disclosure will be described. In the wireless communication system, communication is performed using one of the wireless communication methods according to the above-mentioned embodiments of the present disclosure or a combination thereof.

[0533] Fig.18 1 is a diagram showing an example of a schematic structure of a wireless communication system involved in one embodiment. The wireless communication system 1 may also be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the fifth generation mobile communication system New Radio (5G NR), and the like.

[0534] In addition, the wireless communication system 1 can also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple radio access technologies (Radio Access Technology (RAT)). MR-DC can also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA))) and NR (E-UTRA-NR Dual Connectivity (E-UTRA-NR Dual Connectivity (EN-DC))), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity (NE-DC))), etc.

[0535] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the master node (Master Node (MN)), and the base station (gNB) of NR is the secondary node (Secondary Node (SN)). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0536] The wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) where both MN and SN are NR base stations (gNB)).

[0537] The wireless communication system 1 may also include: a base station 11 that forms a macro cell C1 with a relatively wide coverage, and a base station 12 (12a-12c) that is configured in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located in at least one cell. The configuration and number of each cell and the user terminal 20 are not limited to the method shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as the base station 10.

[0538] The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).

[0539] Each CC may also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band below 6 GHz (sub-6 GHz), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to this. For example, FR1 may also correspond to a frequency band higher than FR2.

[0540] Furthermore, in each CC, the user terminal 20 may communicate using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0541] Multiple base stations 10 may also be connected by wire (e.g., optical fiber based on Common Public Radio Interface (CPRI)), X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, the base station 11 equivalent to the upper station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 equivalent to a relay station may also be referred to as an IAB node.

[0542] The base station 10 may also be connected to the core network 30 via other base stations 10 or directly. The core network 30 may also include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0543] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0544] In the wireless communication system 1, a wireless access method based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and the uplink (UL), cyclic prefix OFDM (CP-OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. may be used.

[0545] The radio access scheme may also be referred to as a waveform. In addition, in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be applied to the UL and DL radio access schemes.

[0546] As downlink channels, the wireless communication system 1 may use a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH))), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc.

[0547] In addition, as uplink channels, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20), an uplink control channel (Physical Uplink Control Channel (PUCCH))), a random access channel (Physical Random Access Channel (PRACH)) and the like can also be used in the wireless communication system 1.

[0548] The PDSCH is used to transmit user data, high-layer control information, system information block (SIB), etc. The PUSCH is also used to transmit user data, high-layer control information, etc. In addition, the PBCH is also used to transmit the master information block (MIB).

[0549] The lower layer control information may also be transmitted via the PDCCH. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of the PDSCH and the PUSCH.

[0550] In addition, the DCI that schedules the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI that schedules the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be replaced by DL data, and the PUSCH may also be replaced by UL data.

[0551] In the detection of PDCCH, the control resource set (CORESET) and the search space can also be used. CORESET corresponds to the resources for searching DCI. The search space corresponds to the search area and search method of PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a search space based on the search space setting.

[0552] A search space may also correspond to PDCCH candidates that are consistent with one or more aggregation levels. One or more search spaces may also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" and the like in the present disclosure may also be interchangeable.

[0553] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., may also be called hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (Scheduling Request (SR)) may also be transmitted through PUCCH. Random access preamble code for establishing connection with a cell may also be transmitted through PRACH.

[0554] In the present disclosure, downlink, uplink, etc. may be expressed without the word “link.” In addition, various channels may be expressed without the word “physical” at the beginning.

[0555] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. can also be transmitted. As DL-RS, in the wireless communication system 1, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (Channel State Information Reference Signal (CSI-RS)), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. can also be transmitted.

[0556] The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may also be referred to as SS / PBCH block, SS block (SSB), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0557] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. can also be transmitted. In addition, DMRS can also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0558] (Base Station)

[0559] Fig.19 1 is a diagram showing an example of a structure of a base station involved in one embodiment. The base station 10 includes a control unit 110, a transmitting and receiving unit 120, a transmitting and receiving antenna 130, and a transmission path interface (transmission line interface) 140. In addition, the control unit 110, the transmitting and receiving unit 120, the transmitting and receiving antenna 130, and the transmission path interface 140 may each be provided with more than one.

[0560] In addition, in this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it is also assumed that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0561] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, and the like that are described based on the common knowledge in the technical field to which the present disclosure relates.

[0562] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc. using the transmission and reception unit 120, the transmission and reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, sequences, etc. to be sent as signals, and forward them to the transmission and reception unit 120. The control unit 110 may also perform call processing (setting, release, etc.) of communication channels, state management of the base station 10, management of wireless resources, etc.

[0563] The transmitting and receiving unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measuring unit 123. The baseband unit 121 may also include a transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting and receiving unit 120 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the public knowledge in the technical field involved in the present disclosure.

[0564] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 1211 and an RF unit 122. The receiving unit may also be configured as a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.

[0565] The transmitting / receiving antenna 130 can be constituted by an antenna described based on the common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0566] The transmitting and receiving unit 120 may also transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 120 may also receive the above-mentioned uplink channel, uplink reference signal, etc.

[0567] The transmitting and receiving unit 120 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0568] The sending and receiving unit 120 (sending processing unit 1211), for example, may also perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (for example, RLC retransmission control), Medium Access Control (MAC) layer processing (for example, HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 110, to generate a bit string to be sent.

[0569] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing, discrete Fourier transform (DFT) processing (as needed), inverse fast Fourier transform (IFFT) processing), precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0570] The transmitting and receiving unit 120 (RF unit 122 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 130 .

[0571] On the other hand, the transmitting and receiving unit 120 (RF unit 122 ) may perform amplification, filter processing, demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmitting and receiving antenna 130 .

[0572] For the acquired baseband signal, the transmitting and receiving unit 120 (receiving processing unit 1212) can also apply analog-to-digital conversion, fast Fourier transform (FFT) processing, inverse discrete Fourier transform (IDFT) processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. to obtain user data, etc.

[0573] The transmitting and receiving unit 120 (measuring unit 123) may also implement measurements related to the received signal. For example, the measuring unit 123 may also perform radio resource management (Radio Resource Management (RRM)) measurements, channel state information (CSI) measurements, etc. based on the received signal. The measuring unit 123 may also measure received power (e.g., reference signal received power (Reference Signal Received Power (RSRP))), received quality (e.g., reference signal received quality (Reference Signal Received Quality (RSRQ)), signal to interference plus noise ratio (Signal to Interference plus Noise Ratio (SINR)), signal to noise ratio (Signal to Noise Ratio (SNR))), signal strength (e.g., received signal strength indicator (Received Signal Strength Indicator (RSSI))), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0574] The transmission path interface 140 can also send and receive signals (return signaling) between the devices included in the core network 30, other base stations 10, etc., and can also obtain and transmit user data (user plane data) and control plane data for the user terminal 20.

[0575] In addition, the transmitting unit and the receiving unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmitting and receiving unit 120 , the transmitting and receiving antenna 130 , and the transmission path interface 140 .

[0576] The control unit 110 may also schedule the transmission or reception of a specific signal using one of the multiple panels of the terminal 20. The transmitting and receiving unit 120 may also transmit information related to activation or deactivation of at least one of the multiple panels (eg, at least one of RRC signaling, MAC CE, and DCI).

[0577] The control unit 110 may also decide to activate or deactivate one of the plurality of panels of the terminal. The transmitting and receiving unit 120 may also send information related to the association between any one of the plurality of panels and a specific signal (e.g., at least one of RRC signaling, MAC CE, and DCI) based on the decision.

[0578] (User Terminal)

[0579] Fig. 20 The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. In addition, the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided in one or more pieces.

[0580] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also assumed that the user terminal 20 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0581] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, and the like that are described based on the common knowledge in the technical field to which the present disclosure relates.

[0582] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc. using the transmission and reception unit 220 and the transmission and reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission and reception unit 220.

[0583] The transmitting and receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measuring unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting and receiving unit 220 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the public knowledge in the technical field involved in the present disclosure.

[0584] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be configured as a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0585] The transmitting / receiving antenna 230 can be constituted by an antenna described based on the common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0586] The transmitting and receiving unit 220 may also receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 220 may also transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0587] The transmitting and receiving unit 220 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0588] The sending and receiving unit 220 (sending processing unit 2211), for example, can also perform PDCP layer processing, RLC layer processing (for example, RLC retransmission control), MAC layer processing (for example, HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210 to generate a bit string to be sent.

[0589] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing, DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be sent, and output a baseband signal.

[0590] In addition, whether to apply DFT processing may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is valid (enabled), the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform. Otherwise, the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing without performing DFT processing.

[0591] The transmitting and receiving unit 220 (RF unit 222 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 230 .

[0592] On the other hand, the transmitting and receiving unit 220 (RF unit 222 ) may perform amplification, filter processing, demodulation to a baseband signal, etc. on the signal in the radio frequency band received by the transmitting and receiving antenna 230 .

[0593] The sending and receiving unit 220 (receiving processing unit 2212) can also apply analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to obtain user data, etc.

[0594] The transmitting and receiving unit 220 (measuring unit 223) may also perform measurements related to the received signal. For example, the measuring unit 223 may also perform RRM measurements, CSI measurements, etc. based on the received signal. The measuring unit 223 may also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0595] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be constituted by at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0596] The transmitting and receiving unit 220 may also receive information related to activation or deactivation of at least one of the multiple panels (eg, at least one of RRC signaling, MAC CE, and DCI). The control unit 210 may also use one of the multiple panels in transmitting or receiving a specific signal based on the information.

[0597] The information may also include at least one of an identifier corresponding to the panel, a serving cell identifier, and a bandwidth part (BWP) identifier.

[0598] The information may also indicate an association between the panel and a particular signal.

[0599] The control unit 210 may also support the transmission or reception of a specific signal using the deactivated panel.

[0600] The transmitting and receiving unit 220 may also receive information related to the association between any one of the multiple panels and a specific signal (eg, at least one of RRC signaling, MAC CE, and DCI). The control unit 210 may also activate or deactivate one of the multiple panels based on the information.

[0601] The information may also associate a control resource set for the specific signal, a transmit setting indication (TCI) status for the specific signal, a resource for the specific signal, a resource set for the specific signal, and a spatial relationship for the specific signal with any one of the multiple panels.

[0602] In case the information indicates an association between the one panel and the specific signal, the control unit 210 may also activate the one panel.

[0603] The control unit 210 may also deactivate the one panel when the information does not indicate an association between the one panel and the specific signal, or when a timer corresponding to the one panel expires, or when a counter corresponding to the one panel reaches an end value.

[0604] (Hardware Structure)

[0605] In addition, the block diagram used in the description of the above-mentioned embodiment shows a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented by a device that is physically or logically combined, or two or more devices that are physically or logically separated can be directly or indirectly (for example, by wired, wireless, etc.) connected and implemented by these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0606] Here, the functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and the implementation method is not particularly limited.

[0607] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig.21 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0608] In addition, in the present disclosure, the terms such as device, circuit, equipment, section, unit, etc. are interchangeable. The hardware structure of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the figure, or may be configured to exclude some of the devices.

[0609] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be performed by one processor, or may be performed by two or more processors simultaneously, sequentially, or in other ways. In addition, the processor 1001 may also be implemented by one or more chips.

[0610] The functions of the base station 10 and the user terminal 20 are realized, for example, by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0611] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), the sending and receiving unit 120 (220), etc. may also be implemented by the processor 1001.

[0612] In addition, the processor 1001 reads the program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes based on them. As a program, a program that enables a computer to perform at least a part of the operations described in the above-mentioned embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and the same can be implemented for other functional blocks.

[0613] The memory 1002 may also be a computer-readable recording medium, for example, composed of at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), and other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0614] The storage 1003 may also be a computer-readable recording medium, such as a flexible disk, a floppy disk, an optical disk (such as a compact disk (Compact Disc ROM (CD-ROM)), etc.), a digital versatile disk, a Blu-ray (registered trademark) disk, a removable disk, a hard disk drive, a smart card, a flash memory device (such as a card, a stick, a key drive), a magnetic stripe, a database, a server, or at least one of other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0615] The communication device 1004 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also called a network device, a network controller, a network card, a communication module, etc. In order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)), the communication device 1004 can also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-mentioned transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. can also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) can also be realized by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0616] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that implements output to the outside (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.). In addition, the input device 1005 and the output device 1006 may also be an integrated structure (e.g., a touch panel).

[0617] In addition, the processor 1001, the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or different buses may be used between the devices.

[0618] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and the hardware may be used to implement a part or all of each functional block. For example, the processor 1001 may also be implemented using at least one of these hardware.

[0619] (Variation Example)

[0620] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be replaced with terms having the same or similar meanings. For example, channels, code elements, and signals (signals or signaling) may also be replaced with each other. In addition, a signal may also be a message. A reference signal may also be referred to as RS, and may also be referred to as a pilot, a pilot signal, etc. depending on the standard applied. In addition, a component carrier (CC) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0621] A wireless frame may also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) constituting a wireless frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) that is not dependent on a parameter set (numerology).

[0622] Here, the parameter set may also refer to a communication parameter applied in at least one of the transmission and reception of a certain signal or channel. For example, the parameter set may also represent at least one of the subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, wireless frame structure, specific filtering processing performed by the transmitter and receiver in the frequency domain, specific windowing processing performed by the transmitter and receiver in the time domain, etc.

[0623] A time slot may also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on a parameter set.

[0624] A time slot may also include multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.

[0625] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by their respective names. In addition, time units such as frames, subframes, time slots, mini-time slots, and symbols in the present disclosure may also be interchangeable.

[0626] For example, a subframe may also be referred to as a TTI, a plurality of consecutive subframes may also be referred to as a TTI, and a time slot or a mini time slot may also be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in the existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. In addition, the unit representing a TTI may also be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0627] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each user terminal to allocate wireless resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in TTI units. In addition, the definition of TTI is not limited to this.

[0628] TTI may also be a transmission time unit for a data packet (transport block), a code block, a code word, etc. that has been channel-coded, and may also be a processing unit for scheduling, link adaptation, etc. In addition, when TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may also be shorter than the TTI.

[0629] In addition, when one time slot or one mini time slot is referred to as TTI, one or more TTIs (i.e., one or more time slots or one or more mini time slots) may also be the minimum time unit of scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of scheduling may also be controlled.

[0630] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0631] In addition, a long TTI (e.g., normal TTI, subframe, etc.) may be replaced by a TTI having a time length exceeding 1 ms, and a short TTI (e.g., shortened TTI, etc.) may be replaced by a TTI having a TTI length shorter than that of the long TTI and longer than 1 ms.

[0632] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may also include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0633] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks, respectively.

[0634] In addition, one or more RBs may also be referred to as a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, an RB pair, etc.

[0635] In addition, a resource block may also be composed of one or more resource elements (RE). For example, one RE may also be a radio resource region of one subcarrier and one symbol.

[0636] A Bandwidth Part (BWP) (also referred to as a partial bandwidth, etc.) may also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a carrier. Here, a common RB may also be identified by an index of the RB relative to a common reference point of the carrier. PRBs may also be defined in a BWP and numbered within the BWP.

[0637] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). For a UE, one or more BWPs may be configured in one carrier.

[0638] At least one of the configured BWPs may be activated, and the UE may not assume that a specific signal / channel is transmitted or received outside the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be replaced with "BWP".

[0639] In addition, the above-mentioned structures such as radio frames, subframes, time slots, mini-time slots and symbols are only examples. For example, the number of subframes included in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

[0640] In addition, the information, parameters, etc. described in the present disclosure may be represented by absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, wireless resources may also be indicated by a specific index.

[0641] In the present disclosure, the names used for parameters, etc. are not limiting in all respects. In addition, the mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in the present disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not limiting in all respects.

[0642] Information, signals, etc. described in the present disclosure may also be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0643] Furthermore, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0644] The input and output information, signals, etc. may be stored in a specific location (e.g., a memory), or may be managed using a management table. The input and output information, signals, etc. may be overwritten, updated, or appended. The output information, signals, etc. may also be deleted. The input information, signals, etc. may also be sent to other devices.

[0645] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information in the present disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI))), high-layer signaling (e.g., Radio Resource Control (RRC)) signaling, broadcast information (Master Information Block (MIB)), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals or a combination thereof.

[0646] In addition, physical layer signaling may also be referred to as layer 1 / layer 2 (Layer 1 / Layer 2 (L1 / L2)) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, such as an RRC connection establishment (RRC Connection Setup) message, an RRC connection reconstruction (RRC Connection Reconfiguration) message, etc. In addition, MAC signaling may also be notified using, for example, a MAC control element (MACControl Element (CE)).

[0647] Furthermore, notification of specific information (eg, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (eg, by not notifying the specific information or by notifying other information).

[0648] The determination can be made by a value represented by a bit (0 or 1), by a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(for example, comparison with a specific value).

[0649] Whether software is called software, firmware, middle-ware, microcode, hardware description language, or other names, it should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, program, sub-program, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.

[0650] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, when software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0651] The terms "system" and "network" used in the present disclosure can be used interchangeably. "Network" may also refer to a device (eg, a base station) included in the network.

[0652] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" can be used interchangeably.

[0653] In the present disclosure, terms such as "Base Station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, micro-micro cell, and micro-micro cell.

[0654] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0655] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” are used interchangeably.

[0656] In some cases, the mobile station is also referred to as a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a hand set, a user agent, a mobile client, a client, or some other appropriate terminology.

[0657] At least one of the base station and the mobile station may also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station may also be a device carried in a mobile body, a mobile body, etc. The mobile body may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile body that moves in an unmanned manner (e.g., a drone, an autonomous driving vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move when performing a communication operation. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.

[0658] In addition, the base station in the present disclosure may also be replaced by a user terminal. For example, the various methods / implementations of the present disclosure may also be applied to a structure in which the communication between a base station and a user terminal is replaced by the communication between multiple user terminals (for example, it may also be referred to as device-to-device (D2D)), vehicle-to-everything (V2X), etc.). In this case, it may also be set as a structure in which the user terminal 20 has the functions possessed by the above-mentioned base station 10. In addition, expressions such as "uplink" and "downlink" may also be replaced by expressions corresponding to communication between terminals (for example, "side"). For example, an uplink channel, a downlink channel, etc. may also be replaced by a side channel.

[0659] Likewise, the user terminal in the present disclosure may be replaced by a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0660] In the present disclosure, the actions are assumed to be performed by the base station, and sometimes by its upper node according to the circumstances. Obviously, in a network including one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (for example, Mobility Management Entity (MME)), Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0661] The various methods / implementations described in this disclosure may be used individually or in combination, and may be used in a switched manner as the method is executed. In addition, the processing procedures, sequences, flow charts, etc. of the various methods / implementations described in this disclosure may be reversed in order as long as they are not contradictory. For example, for the methods described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0662] The various modes / implementations described in the present disclosure may also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG)) (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, and next-generation systems expanded based on them. In addition, multiple systems can also be applied in combination (for example, LTE or LTE-A, combination with 5G, etc.).

[0663] The term “based on” used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the term “based on” means both “based only on” and “based at least on”.

[0664] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Therefore, reference to a first and a second element does not mean that only two elements can be used, or that the first element must take precedence over the second element in some form.

[0665] The term "determining" used in this disclosure may include a variety of actions. For example, "determining" may also refer to situations where judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database or other data structure), ascertaining, etc. are considered to be "determining".

[0666] In addition, "judgment (decision)" may also be a situation where receiving (for example, receiving information), sending (for example, sending information), input (input), output (output), accessing (for example, accessing data in a memory), etc. are regarded as making a "judgment (decision)".

[0667] In addition, "judgment (decision)" can also refer to situations where resolving, selecting, choosing, establishing, comparing, etc. are considered as "judgment (decision)". In other words, "judgment (decision)" can also refer to situations where some actions are considered as "judgment (decision)".

[0668] In addition, “judgment (decision)” can also be replaced by “assuming (assuming)”, “expecting (expecting)”, “considering (considering)” and so on.

[0669] The “maximum transmit power” recorded in the present disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0670] The terms "connected", "coupled", or all their variations used in this disclosure refer to all direct or indirect connections or combinations between two or more elements, and may include the situation where one or more intermediate elements exist between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be physical, logical, or a combination thereof. For example, "connection" may also be replaced by "access".

[0671] In the present disclosure, when two elements are connected, it is possible to consider being "connected" or "combined" to each other using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region, etc. as several non-limiting and non-inclusive examples.

[0672] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other". In addition, the term may also mean "A and B are different from C, respectively". The terms "separate" and "combined" may also be interpreted in the same way as "different".

[0673] When the terms "include", "including", and variations thereof are used in the present disclosure, these terms have an inclusive meaning similar to the term "comprising". Furthermore, the term "or" used in the present disclosure does not have an exclusive OR meaning.

[0674] In the present disclosure, when an article is added by translation like a, an, and the in English, for example, the present disclosure may also include a case where the noun following the article is in plural form.

[0675] The invention involved in the present disclosure has been described in detail above, but it is obvious to those skilled in the art that the invention involved in the present disclosure is not limited to the embodiments described in the present disclosure. The invention involved in the present disclosure can be implemented as a modified and altered method without departing from the gist and scope of the invention determined by the description based on the protection scope of the present invention. Therefore, the description of the present disclosure is for the purpose of illustrative description and does not have any restrictive meaning on the invention involved in the present disclosure.

Claims

1. A terminal, comprising: A receiving unit, receiving first downlink control information (i.e., first DCI) for scheduling a first uplink shared channel (i.e., a first PUSCH), and receiving second DCI for scheduling a second PUSCH; as well as The control unit performs the following control: based on the first DCI and the second DCI, the first panel and the second panel are used to simultaneously send the first PUSCH and the second PUSCH.

2. The terminal according to claim 1, wherein: A first SRS resource set and a second SRS resource set are set in the terminal, The control unit is instructed to use the first DCI to indicate a first SRS resource from the first SRS resource set, and is instructed to use the second DCI to indicate a second SRS resource from the second SRS resource set.

3. A wireless communication method, which is a wireless communication method of a terminal, comprising: The step of receiving first downlink control information (i.e., first DCI) for scheduling a first uplink shared channel (i.e., a first PUSCH), and receiving second DCI for scheduling a second PUSCH; as well as The following control steps are performed: based on the first DCI and the second DCI, the first panel and the second panel are used to simultaneously send the first PUSCH and the second PUSCH.

4. A base station, comprising: A sending unit, controlling the sending of first downlink control information (i.e., first DCI) for scheduling a first uplink shared channel (i.e., a first PUSCH) and the sending of a second DCI for scheduling a second PUSCH; as well as The control unit controls: receiving the first PUSCH and the second PUSCH that are simultaneously transmitted from the terminal using the first panel and the second panel based on the first DCI and the second DCI.

5. A system comprising a terminal and a base station, The terminal comprises: A receiving unit, receiving first downlink control information (i.e., first DCI) for scheduling a first uplink shared channel (i.e., a first PUSCH), and receiving second DCI for scheduling a second PUSCH; as well as The control unit performs the following control: based on the first DCI and the second DCI, using the first panel and the second panel, the first PUSCH and the second PUSCH are sent simultaneously, The base station comprises: The control unit controls the reception of the first PUSCH and the second PUSCH.

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