Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure is provided with: a reception unit that receives first downlink control information that schedules a first UL channel associated with a first panel and / or a transmission / reception point (TRP), and second downlink control information that schedules a second UL channel associated with a second panel and / or the TRP; and a control unit that controls transmission of the first UL channel and the second UL channel, at least a part of which is transmitted in the same time domain for the first UL channel and the second UL channel.

Description

Technical Field

[0001] The present disclosure relates to a terminal, a wireless communication method, and a base station in a next-generation mobile communication system. Background Art

[0002] 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)).

[0003] Successor systems of LTE (also known as, for example, 5th generation mobile communication system (5G), 5G+(plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.) are also being studied.

[0004] Prior art literature

[0005] Non-patent literature

[0006] 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

[0007] Problems to be solved by the invention

[0008] In future wireless communication systems, UE will be able to use one of multiple panels (or multiple beams) for uplink (UL) transmission. In addition, after Rel.18, in order to improve the throughput / reliability of UL, research is being conducted on supporting simultaneous UL transmission using multiple panels (e.g., simultaneous multi-panel UL transmission (SiMPUL)) for more than one transmission / reception point (Transmission / Reception Point (TRP)) to improve the throughput / reliability of UL.

[0009] However, how to control UL transmission using multiple panels (eg, simultaneous UL transmission) has not been fully studied. If UL transmission using multiple panels cannot be performed appropriately, there is a concern that system performance may be degraded, such as a decrease in throughput.

[0010] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately control UL transmission even when UL transmission is performed using a plurality of panels.

[0011] Means for solving problems

[0012] A terminal involved in one embodiment of the present disclosure comprises: a receiving unit, which receives first downlink control information of a first UL channel associated with a first panel and at least one transmit receive point (TRP) and second downlink control information of a second UL channel associated with a second panel and at least one TRP; and a control unit, which controls the transmission of the first UL channel and the second UL channel, and at least a portion of the first UL channel and the second UL channel are transmitted in the same time domain.

[0013] Effects of the Invention

[0014] According to one aspect of the present disclosure, even when UL transmission is performed using a plurality of panels, UL transmission can be appropriately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram showing an example of the relationship between the precoder type and the TPMI index.

[0016] Figure 2A , Figure 2B This is a diagram showing an example of UL transmission of a single panel.

[0017] Figure 3A-3C This is a diagram showing an example of methods 1 to 3 of simultaneous UL transmission using multiple panels.

[0018] Figure 4A as well as Figure 4B This is a diagram showing an example of PUSCH transmission according to the first embodiment.

[0019] Figure 5A as well as Figure 5B This is a diagram showing an example of high-level parameter settings according to the second embodiment.

[0020] Fig. 6A as well as Figure 6B This is a diagram showing an example of setting of high-level parameters according to the third embodiment.

[0021] Fig. 7A as well as Figure 7B This is a diagram showing an example of UE action #1 / UE action #2.

[0022] Fig. 8A as well as Figure 8B This is a diagram showing an example of multiple PUSCH transmission involved in the fourth embodiment.

[0023] Fig. 9 It is a diagram showing another example of multiple PUSCH transmission involved in the fourth embodiment.

[0024] Fig.10 This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0025] Fig.11 This is a diagram showing an example of the configuration of a base station according to an embodiment.

[0026] Fig.12 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0027] Fig.13 This is a diagram showing an example of the hardware configuration of a base station and a user terminal according to an embodiment.

[0028] Fig.14 This is a diagram showing an example of a vehicle according to an embodiment. DETAILED DESCRIPTION

[0029] (PUSCH precoder)

[0030] In NR, the UE is studying supporting at least one of codebook-based transmission (Codebook (CB)) and non-codebook-based transmission (Non-Codebook (NCB)).

[0031] For example, research is underway to use at least the measurement reference signal (Sounding Reference Signal (SRS)) resource indicator (SRS Resource Indicator (SRI)) to determine the precoder (precoding matrix) used for sending the uplink shared channel (Physical Uplink Shared Channel (PUSCH)) based on at least one of the CB-based and NCB-based channels.

[0032] In the case of CB-based transmission, the UE may also determine the precoder for PUSCH transmission based on SRI, Transmitted Rank Indicator (TRI), and Transmitted Precoding Matrix Indicator (TPMI). In the case of NCB-based transmission, the UE may also determine the precoder for PUSCH transmission based on SRI.

[0033] SRI, TRI, TPMI, etc. may also be notified to the UE using downlink control information (Downlink Control Information (DCI)). SRI may be specified by the SRS resource indicator field (SRSResource Indicator field (SRI field)) of the DCI, or by the parameter "srs-ResourceIndicator" included in the RRC information element "ConfiguredGrantConfig" of the configured grant PUSCH. TRI and TPMI may also be specified by the precoding information and number of layers field ("Precoding information and number of layers" field) of the DCI.

[0034] The UE may also report UE capability information related to the precoder type, and the base station may set the precoder type based on the UE capability information through high-layer signaling. The UE capability information may also be information about the precoder type used by the UE in PUSCH transmission (which may also be expressed as the RRC parameter "pusch-TransCoherence").

[0035] In the present disclosure, the higher 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.

[0036] MAC signaling may use, for example, MAC Control Element (MAC CE), MAC Protocol Data Unit (MAC Protocol Data Unit (PDU)), etc. Broadcast information may also use, for example, Master Information Block (MIB), System Information Block (SIB), etc.

[0037] The UE may also determine the precoder used in PUSCH transmission based on the information on the precoder type (also expressed as the RRC parameter "codebookSubset") contained in the PUSCH configuration information (the "PUSCH-Config" information element of the RRC signaling) notified by the higher layer signaling. The UE may also be configured with a subset of the PMI specified by the TPMI through the codebookSubset.

[0038] In addition, the precoder type can also be specified by any one of full coherence (full coherent, fully coherent, coherent), partial coherent and noncoherent (noncoherent) or a combination of at least two of them (for example, it can also be expressed as parameters such as "fullyAndPartialAndNonCoherent", "partialAndNonCoherent", etc.).

[0039] Full coherence may also mean that all antenna ports used in transmission are synchronized (which may also be expressed as being able to match phases, applying the same precoder, etc.). Partial coherence may also mean that a portion of the antenna ports used in transmission are synchronized but the portion of ports are not synchronized with other ports. Incoherence may also mean that the antenna ports used in transmission are not synchronized.

[0040] In addition, a UE supporting a fully coherent precoder type may also be considered to support a partially coherent and non-coherent precoder type. A UE supporting a partially coherent precoder type may also be considered to support a non-coherent precoder type.

[0041] The precoder type can also be rewritten as coherence, PUSCH transmission coherence, coherence type, coherence type, codebook type, codebook subset, codebook subset type, etc.

[0042] The UE may determine a precoding matrix corresponding to the TPMI index obtained from the DCI (eg, DCI format 0_1, the same below) sent by the scheduling UL from among a plurality of precoders (which may also be referred to as precoding matrices, codebooks, etc.) sent based on the CB.

[0043] Figure 1 This is a diagram showing an example of the relationship between the precoder type and the TPMI index. Figure 1 This is equivalent to a table of precoding matrix W for single-layer (rank 1) transmission using 4 antenna ports in DFT-s-OFDM (Discrete Fourier Transform spread OFDM, transform precoding is activated).

[0044] exist Figure 1 In the case where the precoder type (codebookSubset) is fullyAndPartialAndNonCoherent, for single-layer transmission, the UE is notified of any TPMI from 0 to 27. In addition, when the precoder type is partialAndNonCoherent, for single-layer transmission, the UE is set to any TPMI from 0 to 11. When the precoder type is nonCoherent, for single-layer transmission, the UE is set to any TPMI from 0 to 3.

[0045] In addition, if Figure 1 As shown, a precoding matrix in which only one of the components of each column is not 0 can also be called a non-coherent codebook. A precoding matrix in which only a certain number (not all) of the components of each column are not 0 can also be called a partially coherent codebook. A precoding matrix in which all the components of each column are not 0 can also be called a fully coherent codebook.

[0046] Non-coherent codebooks and partially coherent codebooks may also be referred to as antenna selection precoders. Fully coherent codebooks may also be referred to as non-antenna selection precoders.

[0047] In addition, in the present disclosure, the partially coherent codebook may also be equivalent to: from the codebook (precoding matrix) corresponding to the TPMI specified by DCI for codebook-based transmission of the UE set with a partially coherent codebook subset (for example, RRC parameter "codebookSubset" = "partialAndNonCoherent"), the codebook corresponding to the TPMI specified by the UE set with a non-coherent codebook subset (for example, RRC parameter "codebookSubset" = "nonCoherent") (that is, if it is a single-layer transmission of 4 antenna ports, it is a codebook from TPMI=4 to TPMI=11) is removed.

[0048] In addition, in the present disclosure, the fully coherent codebook may also be equivalent to: from the codebook (precoding matrix) corresponding to the TPMI specified by DCI for the UE with a fully coherent codebook subset (for example, RRC parameter "codebookSubset" = "fullyAndPartialAndNonCoherent") set for codebook-based transmission, the codebook corresponding to the TPMI specified by the UE with a partially coherent codebook subset (for example, RRC parameter "codebookSubset" = "partialAndNonCoherent") is removed (that is, if it is a single-layer transmission of 4 antenna ports, it is a codebook from TPMI = 12 to TPMI = 27).

[0049] (Spatial relationship between SRS and PUSCH)

[0050] The UE may also receive information (SRS configuration information, for example, parameters in the "SRS-Config" of the RRC control element) used for transmitting a measurement reference signal (for example, a sounding reference signal (SRS)).

[0051] 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).

[0052] One SRS resource set may be associated with a specific number of SRS resources (a specific number of SRS resources may be grouped). Each SRS resource may be identified by an SRS resource indicator (SRI) or an SRS resource ID (Identifier).

[0053] 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.

[0054] 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.

[0055] In addition, the purpose (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 the purpose of codebook-based transmission or non-codebook-based transmission may also be used to determine the precoder for codebook-based or non-codebook-based PUSCH transmission according to SRI.

[0056] For example, in the case of codebook-based transmission, the UE may also determine the precoder for PUSCH transmission based on SRI, Transmitted Rank Indicator (TRI) and Transmitted Precoding Matrix Indicator (TPMI). In the case of non-codebook-based transmission, the UE may also determine the precoder for PUSCH transmission based on SRI.

[0057] SRS resource information may also include SRS resource ID (SRS-ResourceId), SRS port number, SRS port sequence 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, series ID, SRS spatial relationship information, etc.

[0058] The spatial relationship information of SRS (for example, "spatialRelationInfo" of RRC information element) can also indicate the spatial relationship information between a specific reference signal and SRS. The specific reference signal can 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 (for example, another SRS). The SS / PBCH block can also be referred to as a synchronization signal block (SSB).

[0059] The spatial relationship information of the SRS may include at least one of an SSB index, a CSI-RS resource ID, and an SRS resource ID as an index of the above-mentioned specific reference signal.

[0060] In addition, in the present disclosure, the SSB index, SSB resource ID, and SSBRI (SSB resource identifier (SSB Resource Indicator)) can also be overwritten with each other. In addition, the CSI-RS index, CSI-RS resource ID, and CRI (CSI-RS resource identifier (CSI-RS Resource Indicator)) can also be overwritten with each other. In addition, the SRS index, SRS resource ID, and SRI can also be overwritten with each other.

[0061] The spatial relationship information of the SRS may also include a serving cell index, a BWP index (BWP ID), etc. corresponding to the above-mentioned specific reference signal.

[0062] In NR, the transmission of uplink signals can also be controlled based on the presence or absence of 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.

[0063] In addition, BC can also be called transmit / receive beam correspondence (Tx / Rx beamcorrespondence), beam reciprocity (beamreciprocity), beam calibration (beam calibration), calibrated / non-calibrated (Calibrated / Non-calibrated), reciprocity calibrated / non-calibrated (reciprocity calibrated / non-calibrated), correspondence, consistency, etc.

[0064] For example, in the absence of BC, the UE may also send uplink signals (e.g., PUSCH, PUCCH, SRS, etc.) using the same beam (spatial domain transmit filter) as the SRS (or SRS resources) indicated from the base station based on the measurement results of one or more SRS (or SRS resources).

[0065] On the other hand, in the presence 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 a specific SSB or CSI-RS (or CSI-RS resource).

[0066] In the case where spatial relationship information related to SSB or CSI-RS and SRS is set for a certain SRS resource (for example, in the case of 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 and the UE transmit beam of the SRS are the same.

[0067] In the case where spatial relationship information related to another SRS (reference SRS) and the SRS (target SRS) is set for a certain SRS (target SRS) resource (for example, in the case of 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 and the UE transmit beam of the target SRS are the same.

[0068] The UE may also determine the spatial relationship of the PUSCH scheduled by the DCI based on the value of a specific field (e.g., SRS resource identifier (SRI) field) in the DCI (e.g., DCI format 0_1). Specifically, the UE may also use the determined spatial relationship information of the SRS resource (e.g., "spatialRelationInfo" of the RRC information element) for PUSCH transmission based on the value of the specific field (e.g., SRI).

[0069] For PUSCH, when codebook-based transmission is used, the UE may be configured with two SRS resources through RRC, and one of the two SRS resources may be indicated through DCI (a 1-bit specific field). For PUSCH, when non-codebook-based transmission is used, the UE may be configured with four SRS resources through RRC, and one of the four SRS resources may be indicated through DCI (a 2-bit specific field). In order to use a spatial relationship other than the two or four spatial relationships configured through RRC, RRC reconfiguration is required.

[0070] In addition, the spatial relationship of the SRS resources used in the PUSCH can be set for the DL-RS. For example, for SP-SRS, the UE can be set with the spatial relationship of multiple (e.g., up to 16) SRS resources through RRC, and one of the multiple SRS resources can be indicated through MAC CE.

[0071] (TPMI and transmission rank)

[0072] In Rel.16, the transmitted precoding matrix indicator (TPMI) and the transmission rank for codebook-based PUSCH transmission are being studied, and are specified by specific fields (e.g., precoding information and layer number fields) included in the downlink control information (e.g., DCI format 0_1). In addition, in the present disclosure, the rank can also be rewritten with the layer.

[0073] The precoder used by the UE in codebook-based PUSCH transmission may be selected from an uplink codebook having the same number of antenna ports as the value set by the higher layer parameter (eg, nrofSRS-Ports) set for the SRS resources.

[0074] The size (number of bits) of this specific field may be variable depending on the number of antenna ports used for PUSCH (for example, the number of ports represented by the above-mentioned nrofSRS-Ports) and several higher-layer parameters.

[0075] When a higher layer parameter (eg, txConfig) configured for the UE is set to non-codebook, the specific field may be 0 bits.

[0076] Furthermore, when a higher-layer parameter (eg, txConfig) configured for a UE for one antenna port is configured as a codebook, the specific field may be 0 bits.

[0077] In addition, for 4 antenna ports, when the higher-level parameters set for the UE (e.g., txConfig) are set as a codebook, this specific field may have a bit length of 2 to 6 bits based on at least one of other higher-level parameters set for the UE and the presence or absence (valid or invalid) of a transform precoder.

[0078] In addition, for 2 antenna ports, when the higher-level parameters set for the UE (e.g., txConfig) are set as a codebook, the specific field may have a bit length of 1 to 4 bits based on at least one of other higher-level parameters set for the UE and the presence or absence (valid or invalid) of a transform precoder.

[0079] The other high-level parameters may also be at least one of a parameter for specifying the full-power transmission mode of the UL (e.g., ul-FullPowerTransmission, ul-FullPowerTransmission-r16), a parameter indicating the maximum value of the UL transmission rank (e.g., maxRank), a parameter indicating a subset of a precoding matrix indicator (PMI) (e.g., codebookSubset), and a parameter for specifying a transform precoder (e.g., transformPrecoder).

[0080] (Single panel delivery)

[0081] The single-panel UL transmission method or the single-panel UL transmission method candidate may also be applied with at least one of the following transmission methods A, B (single-panel UL transmission methods A, B). In addition, in the present disclosure, the panel / UE panel may also be rewritten as a set of UE capability values ​​reported according to each UE capability (e.g., a UE capability value set).

[0082] [Transmission method A: single-panel single TRP UL transmission]

[0083] In Rel.15 and Rel.16, the UE uses a transmission method that transmits UL for one TRP at one time from only one beam and panel ( Figure 2A ).

[0084] [Transmission method B: single-panel multi-TRP UL transmission]

[0085] In Rel.17, a study is being conducted on performing UL transmission from only one beam and panel at one time and performing repeated transmission to multiple TRPs ( Figure 2B ).exist Figure 2B In the example, after the UE sends PUSCH from panel #1 to TRP #1 (switching beams and panels), it sends PUSCH from panel #2 to TRP #2. The two TRPs are connected via an ideal backhaul.

[0086] (Multi-panel sending)

[0087] After Rel.18, in order to improve UL throughput / reliability, research is underway to support simultaneous UL transmission using multiple panels for more than one TRP. In addition, multi-panel UL transmission methods are being studied for specific UL channels (e.g., PUSCH / PUCCH).

[0088] As a multi-panel UL transmission, for example, a maximum of X (for example, X=2) and a maximum of Y (for example, Y=2) panels can also be supported. In multi-panel UL transmission, when supporting UL precoding indication for PUSCH, the codebook of the existing system (for example, before Rel.16) can also be supported for simultaneous transmission of multiple panels. Considering single DCI and multi-TRP operation based on multi-DCI, the number of layers can also be a maximum of x (for example, x=4) in all panels, and the number of codewords (CW) can also be a maximum of y (for example, y=2) in all panels.

[0089] Regarding the multi-panel UL transmission method or the multi-panel UL transmission method candidate, at least one of the following methods 1 to 3 (multi-panel UL transmission methods 1 to 3) is studied. It is also possible to support only one of the transmission methods 1 to 3. It is also possible that multiple methods including at least one of the transmission methods 1 to 3 are supported, and one of the multiple transmission methods is set to the UE.

[0090] [Transmission method 1: coherent multi-panel UL transmission]

[0091] Multiple panels can also be synchronized with each other. All layers are mapped to all panels. Multiple simulated beams are indicated. The SRS Resource Indicator (SRI) field can also be extended. This approach can also use a maximum of 4 layers for UL.

[0092] exist Figure 3A In the example, the UE maps 1 codeword (CW) or 1 transport block (TB) to L layers (PUSCH (1, 2, ..., L)), and sends L layers from each of the 2 panels. Panel #1 and Panel #2 are coherent. Transmission mode 1 can obtain diversity-based gain. The total number of layers in the 2 panels is 2L. When the maximum number of layers is 4, the maximum number of layers in 1 panel is 2.

[0093] [Transmission mode 2: non-coherent multi-panel UL transmission of 1 codeword (CW) or transport block (TB)]

[0094] Multiple panels may also be asynchronous. Different layers may also be mapped to different panels and 1 CW or TB for PUSCH from multiple panels. Layers corresponding to 1 CW or TB may also be mapped to multiple panels. The transmission method may also use a maximum of 4 layers or a maximum of 8 layers for UL. In the case of supporting a maximum of 8 layers, the transmission method may also support 1 CW or TB using a maximum of 8 layers.

[0095] exist Figure 3B In the example, the UE maps 1CW or 1TB to k layers (PUSCH (1, 2, ..., k)) and Lk layers (PUSCH (k+1, k+2, ..., L)), sends k layers from panel #1, and sends Lk layers from panel #2. Transmission method 2 can obtain gains based on multiplexing and diversity. The total number of layers in 2 panels is L.

[0096] [Transmission method 3: Non-coherent multi-panel UL transmission of 2 CW or TB]

[0097] Multiple panels may also be asynchronous. Different layers are mapped to different panels and 2 CWs or TBs for PUSCH from multiple panels. Layers corresponding to 1 CW or TB may also be mapped to 1 panel. Layers corresponding to multiple CWs or TBs may also be mapped to different panels. The transmission method may also use a maximum of 4 layers or a maximum of 8 layers for UL. In the case of supporting a maximum of 8 layers, the transmission method may also support a maximum of 4 layers for each CW or TB.

[0098] exist Figure 3C In the example, the UE maps CW#1 or TB#1 of 2CWs or 2TBs to k layers (PUSCH(1, 2, ..., k)), maps CW#2 or TB#2 to Lk layers (PUSCH(k+1, k+2, ..., L)), sends k layers from panel #1, and sends Lk layers from panel #2. Transmission mode 3 can obtain gain based on multiplexing and diversity. The total number of layers in 2 panels is L.

[0099] In each of the above-mentioned transmission modes, the base station may also use ULTCI or panel ID to set or indicate panel-specific transmission for UL transmission. ULTCI (UL TCI state) may also be based on signaling similar to the DL beam indication supported in Rel.15. The panel ID may also be implicitly or explicitly applied to the transmission of at least one of the target RS resources or target RS resource sets, PUCCH, SRS, and PRACH. In the case where the panel ID is explicitly notified, the panel ID may also be set in at least one of the target RS, target channel, reference RS, (for example, DLRS resource setting or spatial relationship information).

[0100] In one or more of the above-mentioned transmission methods / modes, multi-panel UL transmission (for example, simultaneous multi-panel UL transmission (SiMPUL)) for scheduling PUSCH based on one DCI (single DCI) / scheduling PUSCH based on multiple DCIs (multi-DCI) is being studied.

[0101] However, in the case of supporting at least one of simultaneous multi-panel UL transmission based on a single DCI (case #1) and simultaneous multi-panel UL transmission based on multiple DCIs (case #2), how to control UL transmission becomes a problem.

[0102] For example, in simultaneous multi-panel UL transmission based on multiple DCIs, how to control the time / frequency resources of the PUSCH of each panel (or corresponding to each panel) becomes a problem.

[0103] Alternatively, in each case, how to control the setting of the codebook for each CW / panel / TRP / PUSCH / TB (e.g., codebook subset setting (e.g., codebook subset configuration)) becomes a problem. Alternatively, in each case, how to control the setting of the UL transmit power for each CW / panel / TRP / PUSCH / TB (e.g., UL full power setting (e.g., UL full power configuration)) becomes a problem.

[0104] Alternatively, in each situation, how to control the rank constraint of the UL for each CW / panel / TRP / PUSCH / TB (eg, UL rank constriction) becomes an issue.

[0105] Alternatively, in simultaneous multi-panel UL transmission based on multiple DCIs, how to control the transmission / scheduling order / whether or not to support time domain overlap of the PUSCH corresponding to each panel becomes a problem.

[0106] Therefore, the inventors of the present invention studied UL transmission control to solve at least one of the above-mentioned problems and conceived of the present embodiment.

[0107] 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.

[0108] In the present disclosure, “A / B” may also mean “at least one of A and B”. In the present disclosure, “A / B / C” may also mean “at least one of A, B, and C”.

[0109] In the present disclosure, cell, serving cell, CC, carrier, BWP, DLBWP, UL BWP, activated DLBWP, activated ULBWP, and band may also be mutually overwritten. In the present disclosure, index, ID, indicator, and resource ID may also be mutually overwritten. In the present disclosure, support, control, controllable, action, and actionable may also be mutually overwritten.

[0110] In the present disclosure, configure, activate, update, indicate, enable, specify, and select may be overwritten with each other.

[0111] 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. In the present disclosure, RRC, RRC signaling, RRC parameters, high layers, high-layer parameters, RRC information elements (IEs), and RRC messages may also be rewritten mutually.

[0112] 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.

[0113] In the present disclosure, MAC CE and activation / deactivation commands may also overwrite each other.

[0114] In the present disclosure, panel, beam, spatial domain filter, spatial setting, TCI state, UL TCI state, unified TCI state, unified beam, common TCI state, common beam, TCI assumption, QCL assumption, QCL parameter, spatial domain reception filter, UE spatial domain reception filter, UE reception beam, DL beam, DL reception beam, DL precoding, DL precoder, DL-RS, RS of QCL type D assumed by TCI state / QCL, RS of QCL type A assumed by TCI state / QCL, spatial relationship, spatial domain transmission filter, UE spatial domain transmission filter, UE transmission beam, UL beam, UL transmission beam, UL precoding, UL precoder, PL-RS can also be rewritten mutually. 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, SRS can also be rewritten mutually.

[0115] In the present disclosure, the panel, uplink (UL) transmission entity, TRP, spatial relationship, control resource set (CORESET), PDSCH, codeword, base station, antenna port of a certain signal (e.g., demodulation reference signal (DMRS)) port), antenna port group of a certain signal (e.g., DMRS port group), group for multiplexing (e.g., code division multiplexing (CDM)) group, reference signal group, CORESET group), CORESET pool, CORESET subset, CW, redundancy version (RV), layer (MIMO layer, transmission layer, spatial layer) can also be rewritten with each other. In addition, the panel identifier (Identifier (ID)) and the panel can also be rewritten with each other. In the present disclosure, the TRP ID, TRP association ID, CORESET pool index, the position of one of the two TCI states corresponding to one code point of a field within the DCI (ordinal number, the first TCI state or the second TCI state), and the TRP can also be rewritten with each other.

[0116] In the present disclosure, panels, UE panels, RS port groups, DMRS port groups, SRS port groups, RS resource groups, DMRS resource groups, SRS resource groups, beam groups, TCI state groups, spatial relationship groups, SRS resource indicator (SRI) groups, antenna port groups, antenna groups, and CORESET groups may also be rewritten mutually.

[0117] The panel may also be associated with at least one of panel ID, UL TCI status, UL beam, L beam, DL RS resources, and spatial relationship information.

[0118] In the present disclosure, multiple TRPs, multiple TRP systems, multiple TRP transmissions, multiple PDSCHs, channels using multiple TRPs, channels using multiple TCI states / spatial relationships, multiple TRPs activated through RRC / DCI, multiple TCI states / spatial relationships activated through RRC / DCI, multiple TRPs based on a single DCI, and at least one of multiple TRPs based on multiple DCIs may also be overwritten with each other. In the present disclosure, multiple TRPs based on multiple DCIs, a CORESET pool index (CORESETPoolIndex) value is set for CORESET, and may also be overwritten with each other. In the present disclosure, multiple TRPs based on a single DCI, at least one code point of the TCI field is mapped to two TCI states, and may also be overwritten with each other.

[0119] In the present disclosure, a single TRP, a single DCI, a single PDCCH, multiple TRPs based on a single DCI, a single TRP system, a single TRP transmission, a single PDSCH, a channel using a single TRP, a channel using one TCI state / spatial relationship, multiple TRPs not activated through RRC / DCI, multiple TCI states / spatial relationships not activated through RRC / DCI, a CORESET pool index (CORESETPoolIndex) value is not set for any CORESET and any code point of the TCI field is not mapped to two TCI states, two TCI states on at least one TCI code point are activated, and can also be overwritten with each other.

[0120] In the present disclosure, "switch", "determine", and "select" may also be rewritten as one another.

[0121] (Wireless Communication Method)

[0122] The UE may also be configured to perform simultaneous UL transmission of multiple beams / multi-panels (hereinafter, also simply referred to as multi-panels). This configuration may also be performed using high-layer signaling (eg, RRC signaling / MAC CE) / physical layer signaling (eg, DCI).

[0123] This setting may be a setting related to simultaneous UL transmission of multiple panels, or a setting related to simultaneous UL transmission of multiple panels across multiple (multiple types) UL channels / signals.

[0124] The UE may also report capability information related to simultaneous UL transmission of multiple panels to the network (NW, eg, base station).

[0125] The UE capability information may be capability information of simultaneous UL transmission of multiple panels, or capability information of simultaneous UL transmission of multiple panels across multiple (multiple types) UL channels / signals.

[0126] The UE may also report capability information related to simultaneous UL transmission of multiple panels to the NW and be configured for simultaneous UL transmission of multiple panels.

[0127] The NW may also send information related to the above-mentioned UL channel / signal conflict handling to the UE. This information may also be sent using high-layer signaling / physical layer signaling.

[0128] In the following, the case where the number of panels is 2 is mainly described, but the number of panels may be more than 2. Each embodiment of the present disclosure can also be appropriately applied to transmission based on 3 or more panels.

[0129] In addition, in the present disclosure, the base station may also receive at least one of the multiple UL channels / signals simultaneously transmitted by the UE. In addition, the simultaneous transmission of multiple UL channels / signals may also mean supporting / allowing at least a portion of each UL channel / signal to overlap in the time domain.

[0130] <First embodiment>

[0131] In the first embodiment, resource allocation in simultaneous multi-panel UL transmission (eg, SiMPUL) based on multiple DCIs is described. In the following description, PUSCH transmission is cited as an example of UL transmission, but it can also be applied to other UL channels / UL signals.

[0132] The application of simultaneous multi-panel UL transmission based on multiple DCIs (e.g., SiMPUL) can also be configured for the UE from the network (e.g., base station). For example, the base station configures simultaneous multi-panel UL transmission based on multiple DCIs for the UE using higher layer parameters (e.g., RRC parameters).

[0133] In this case, the UE may also assume that a maximum of 2 PUSCHs associated with multiple (e.g., 2) TRPs / panels are scheduled. Each PUSCH may also correspond to a maximum of X (e.g., X=1) CWs. Each PUSCH may also be scheduled separately via multiple DCIs (e.g., indicated by transmission parameters). For example, in the case where 2 PUSCHs (e.g., PUSCH#1 and PUSCH#2) are transmitted using multiple panels, PUSCH#1 may be scheduled via DCI#1 and PUSCH#2 may be scheduled via DCI#2.

[0134] The association between TRP / panel and PUSCH can also be determined based on at least one of an association set between TRP / panel and PUSCH, an association set between TRP / panel and TCI of PUSCH, an association set between the spatial relationship between TRP / panel and PUSCH, an association set between DCI used in scheduling of TRP / panel and PUSCH, and an association set between CORESET used for scheduling of TRP / panel and PUSCH.

[0135] The TRP / Panel ID may also be represented by at least one of a CORESET pool index, a panel ID, an antenna group ID of the UE, an RS group ID, and a UE capability set ID.

[0136] Multiple (e.g., 2) PUSCHs (e.g., PUSCH#1 and PUSCH#2) transmitted using multiple panels may also be transmitted in an overlapping manner in the time domain (or, time domain). In this case, PUSCH#1 and PUSCH#2 may also be scheduled / transmitted / mapped in a manner that they are entirely overlapped in the time domain (see Figure 4A Alternatively, PUSCH#1 and PUSCH#2 may be scheduled / transmitted / mapped in a manner that at least a portion of them overlap in the time domain (see Figure 4B ).

[0137] exist Figure 4A In FIG. 1 , it is shown that DCI#1 for scheduling PUSCH#1 and DCI#2 for scheduling PUSCH#2 correspond to different CORESET pool indexes. Figure 4B , it is shown that DCI#1 for scheduling PUSCH#1 and DCI#2 for scheduling PUSCH#2 have the same pair index. The pair index can also be defined / set based on multiple DCIs. For example, the same pair index can also be defined / set for a combination of DCIs corresponding to multiple panels / TRPs (for example, a combination of DCI#1 corresponding to panel#1 / TRP#1 and DCI#2 corresponding to panel#2 / TRP#2). In addition, the relationship between DCI#1 and DCI#2 is not limited to this.

[0138] As frequency domain (or, frequency domain) allocation of a plurality of PUSCHs (for example, PUSCH#1 and PUSCH#2) overlapping in the time domain, at least one of the following options 1-1 to 1-3 may be applied.

[0139] [Option 1-1]

[0140] Supports non-overlapping, partial-overlapping, and full-overlapping.

[0141] [Option 1-2]

[0142] Only some of the scenarios of non-overlapping, partial-overlapping, and full-overlapping are supported. The supported scenarios may be defined in the specification or may be set from the base station to the UE using higher layer parameters.

[0143] [Options 1-3]

[0144] In option 1-1 or option 1-2, it is also possible to configure that in the case of non-overlapping in the frequency domain, the gap between two frequency domain resource allocations (for example, the gap / offset between PUSCH#1 and PUSCH#2) satisfies a specific condition / specific range. For example, the gap between two frequency domain resource allocations may also be limited to be smaller than X subcarriers / X resource blocks (RBs) / X physical resource blocks (PRBs). X may be defined in the specification (for example, defined as a fixed value) or may be set from the base station to the UE using a high-layer parameter or the like.

[0145] In addition, UE capabilities may be imported / supported for each of the options.

[0146] In Option 1-1 to Option 1-3, a specific condition may be applied to a plurality of (eg, 2) PUSCHs (eg, PUSCH#1 and PUSCH#2). The specific condition may be a setting of a demodulation reference signal (eg, DMRS).

[0147] For example, it may be configured such that, for a plurality of (e.g., 2) PUSCHs (e.g., PUSCH#1 and PUSCH#2), at least one of the DMRS configurations becomes the same (or is commonly configured). The DMRS configuration includes: at least one of a DMRS configuration type (e.g., DMRS configuration type), a mapping time (e.g., mapping time), a mapping type (e.g., mapping type), a number of additional DMRSs (e.g., the number of additional DMRSs), a single-symbol DMRS or a dual-symbol DMRS.

[0148] Alternatively, the DMRS symbol index may be the same (or commonly set) for a plurality of (for example, two) PUSCHs (for example, PUSCH #1 and PUSCH #2).

[0149] Alternatively, the CDM groups of DMRS may be different for a plurality of (for example, two) PUSCHs (for example, PUSCH#1 and PUSCH#2), or the CDM groups may be the same (or commonly set).

[0150] <Second embodiment>

[0151] In the second embodiment, codebook setting / UL power control in simultaneous multi-panel UL transmission (eg, SiMPUL) is described. In the following description, PUSCH transmission is taken as an example of UL transmission, but it can also be applied to other UL channels / UL signals.

[0152] 《Based on single DCI》

[0153] When simultaneous multi-panel UL transmission based on a single DCI (e.g., SiMPUL) is configured, at least one of the following options 2A-1 and 2A-2 may also be applied to codebook configuration (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission).

[0154] The application of simultaneous multi-panel UL transmission based on a single DCI (e.g., SiMPUL) can also be set to the UE from the network (e.g., base station). For example, the base station sets simultaneous multi-panel UL transmission based on a single DCI to the UE using high-layer parameters (e.g., RRC parameters). When the CORESET pool index is not set (or when only one value is set as the CORESET pool index), the UE can also determine that it is based on a single DCI.

[0155] [Option 2A-1]

[0156] For simultaneous multi-panel UL transmission (e.g., multiple PUSCHs) based on a single DCI, codebook configuration (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) may also be configured in the same manner as in an existing system (e.g., prior to Rel.16). For example, for simultaneous multi-panel UL transmission (e.g., multiple PUSCHs) based on a single DCI, codebook configuration (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) may also be configured in common through higher layer signaling (refer to Figure 5A ).

[0157] The UE may also apply high-level parameters associated with the codebook setting to multiple PUSCHs in common, regardless of the TRP / panel associated with each PUSCH. For example, through high-level signaling, a codebook subset setting (e.g., codebookSubset) for a specific DCI format (e.g., DCI format 0_1 / 0_2) may also be applied in common to multiple PUSCHs. More specifically, through a codebook subset (e.g., codebookSubset) included in a PUSCH setting (e.g., PUSCH-Config), fully coherent, partially coherent, or non-coherent ({fullyAndPartialAndNonCoherent, partialAndNonCoherent, nonCoherent}) may also be set for multiple PUSCHs.

[0158] The UE may also apply higher layer parameters associated with UL full power transmission to multiple PUSCHs in common, regardless of the TRP / panel associated with each PUSCH. For example, through higher layer signaling, the full power transmission mode (e.g., ul-FullPowerTransmission) may also be applied in common to multiple PUSCHs. More specifically, through the full power transmission mode (e.g., ul-FullPowerTransmission) included in the PUSCH setting (e.g., PUSCH-Config), full power, full power mode 1, full power mode 2 ({fullpower, fullpowerMode1, fullpowerMode2}) may also be set for multiple PUSCHs.

[0159] [Option 2A-2]

[0160] For simultaneous multi-panel UL transmission (e.g., multiple PUSCHs) based on a single DCI, the codebook setting (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) can also be set specifically / separately. That is, for multiple PUSCHs associated with each TRP / panel, respectively, the codebook setting (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) can also be supported to be set differently.

[0161] For example, it may also be that the first high-level parameter corresponding to the codebook setting / UL full power transmission is set to PUSCH#1 associated with the first TRP / panel, and the second high-level parameter corresponding to the codebook setting / UL full power transmission is set to PUSCH#2 associated with the second TRP / panel (reference Figure 5B ). Alternatively, the first high-level parameter may be a high-level parameter corresponding to the codebook setting / UL full power transmission supported in an existing system (eg, before Rel. 16), and the second high-level parameter may be a new high-level parameter.

[0162] Through the codebook subset (e.g., codebookSubset) included in the PUSCH setting (e.g., PUSCH-Config), fully coherent, partially coherent, or non-coherent ({fullyAndPartialAndNonCoherent, partialAndNonCoherent, nonCoherent}) can also be set separately for multiple PUSCHs. Alternatively, through the full power transmission mode (e.g., ul-FullPowerTransmission) included in the PUSCH setting (e.g., PUSCH-Config), full power, full power mode 1, full power mode 2 ({fullpower, fullpowerMode1, fullpowerMode2}) can also be set separately for multiple PUSCHs.

[0163] In addition, Figure 5B , a case where the first high-level parameter and the second high-level parameter are included in the same PUSCH configuration (eg, PUSCH-Config) is shown, but they may also be included in different PUSCH configurations.

[0164] Even when simultaneous multi-panel UL transmission based on a single DCI is set, the UE may apply different settings based on whether simultaneous multi-panel UL transmission is applied. For example, when simultaneous multi-panel UL transmission is not performed, a specific high-layer parameter is applied to PUSCH transmission, and when simultaneous multi-panel UL transmission is performed, multiple high-layer parameters are applied to multiple PUSCH transmissions respectively.

[0165] 《Based on Multiple DCI》

[0166] When simultaneous multi-panel UL transmission based on multiple DCI (e.g., SiMPUL) is configured, at least one of the following options 2B-1 and 2B-2 may also be applied for codebook configuration (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission).

[0167] The application of simultaneous multi-panel UL transmission based on multiple DCI (e.g., SiMPUL) can also be set to the UE from the network (e.g., base station). For example, the base station sets simultaneous multi-panel UL transmission based on multiple DCI to the UE using high-layer parameters (e.g., RRC parameters). When the CORESET pool index is set, the UE can also determine that it is based on multiple DCI.

[0168] [Option 2B-1]

[0169] For simultaneous multi-panel UL transmission (e.g., multiple PUSCHs) based on multiple DCIs, codebook configuration (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) may also be configured in the same manner as in the existing system (e.g., before Rel.16). For example, for simultaneous multi-panel UL transmission (e.g., multiple PUSCHs) based on multiple DCIs, codebook configuration (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) may also be configured in common through higher layer signaling (refer to Figure 5A ).

[0170] The UE may also apply high-level parameters associated with the codebook setting to multiple PUSCHs in common, regardless of the TRP / panel associated with each PUSCH. For example, through high-level signaling, a codebook subset setting (e.g., codebookSubset) for a specific DCI format (e.g., DCI format 0_1 / 0_2) may also be applied in common to multiple PUSCHs. More specifically, through a codebook subset (e.g., codebookSubset) included in a PUSCH setting (e.g., PUSCH-Config), fully coherent, partially coherent, or non-coherent ({fullyAndPartialAndNonCoherent, partialAndNonCoherent, nonCoherent}) may also be set for multiple PUSCHs.

[0171] The UE may also apply higher layer parameters associated with UL full power transmission to multiple PUSCHs in common, regardless of the TRP / panel associated with each PUSCH. For example, through higher layer signaling, the full power transmission mode (e.g., ul-FullPowerTransmission) may also be applied in common to multiple PUSCHs. More specifically, through the full power transmission mode (e.g., ul-FullPowerTransmission) included in the PUSCH setting (e.g., PUSCH-Config), full power, full power mode 1, full power mode 2 ({fullpower, fullpowerMode1, fullpowerMode2}) may also be set for multiple PUSCHs.

[0172] [Option 2B-2]

[0173] For simultaneous multi-panel UL transmission (e.g., multiple PUSCHs) based on multiple DCIs, codebook settings (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) can also be set specifically / separately. That is, for multiple PUSCHs associated with each TRP / panel, codebook settings (e.g., codebook subset configuration) / UL full power transmission (e.g., ul-FullPowerTransmission) can also be set differently.

[0174] For example, it may also be that the first high-level parameter corresponding to the codebook setting / UL full power transmission is set to PUSCH#1 associated with the first TRP / panel, and the second high-level parameter corresponding to the codebook setting / UL full power transmission is set to PUSCH#2 associated with the second TRP / panel (reference Figure 5B ). Alternatively, the first high-level parameter may be a high-level parameter corresponding to the codebook setting / UL full power transmission supported in an existing system (eg, before Rel. 16), and the second high-level parameter may be a new high-level parameter.

[0175] Through the codebook subset (e.g., codebookSubset) included in the PUSCH setting (e.g., PUSCH-Config), fully coherent, partially coherent, or non-coherent ({fullyAndPartialAndNonCoherent, partialAndNonCoherent, nonCoherent}) can also be set separately for multiple PUSCHs. Alternatively, through the full power transmission mode (e.g., ul-FullPowerTransmission) included in the PUSCH setting (e.g., PUSCH-Config), full power, full power mode 1, full power mode 2 ({fullpower, fullpowerMode1, fullpowerMode2}) can also be set separately for multiple PUSCHs.

[0176] In addition, Figure 5B , a case where the first high-level parameter and the second high-level parameter are included in the same PUSCH configuration (eg, PUSCH-Config) is shown, but they may also be included in different PUSCH configurations.

[0177] Alternatively, multiple codebook setting candidates (or entries) / multiple UL full power transmission candidates (or entries) or a set including codebook setting and UL full power transmission may be set through higher layer parameters. In this case, the codebook subset / UL full power transmission applied in each PUSCH may also be indicated through the DCI used in the scheduling of each PUSCH.

[0178] For simultaneous multi-panel UL transmission based on a single DCI / simultaneous multi-panel UL transmission based on multiple DCIs, the UE capability for codebook subset setting / UL full power transmission can also be introduced / supported on a per-panel basis.

[0179] <Third Embodiment>

[0180] In the third embodiment, the setting of the rank (eg, maximum rank) in simultaneous multi-panel UL transmission (eg, SiMPUL) is described. In the following description, PUSCH transmission is taken as an example of UL transmission, but it can also be applied to other UL channels / UL signals.

[0181] 《Based on Multiple DCI》

[0182] When simultaneous multi-panel UL transmission based on multiple DCIs (eg, SiMPUL) is configured, at least one of the following options 3-1 and 3-4 may also be applied for the maximum rank configuration (eg, maxrank configuration).

[0183] The application of simultaneous multi-panel UL transmission based on multiple DCI (e.g., SiMPUL) can also be set to the UE from the network (e.g., base station). For example, the base station uses high-layer parameters (e.g., RRC parameters) to set simultaneous multi-panel UL transmission based on multiple DCI to the UE. When the CORESET pool index is set, the UE can also be determined to be based on multiple DCI. In addition, the maximum rank setting (e.g., maxrank configuration) can also be set by high-layer parameters.

[0184] [Option 3-1]

[0185] For simultaneous multi-panel UL transmission based on multi-DCI (e.g., multiple PUSCHs), the maximum rank (e.g., maxRank / maxRankDCI-0-2-r16) can also be set in the same way as in the existing system (e.g., before Rel.16). For example, for multiple PUSCHs associated with each TRP / panel, the maximum rank (e.g., maxRank / maxRankDCI-0-2-r16) can also be set in common through high-layer signaling (refer to Fig. 6A ).

[0186] When the rank is set for two PUSCHs scheduled by two DCIs, the UE may control the UE operation (for example, how to set the rank) based on the scheduling scenario. The scheduling scenario may include the following scheduling scenarios #3-1 / #3-2.

[0187] Scheduling scenario #3-1: Two scheduled PUSCHs (e.g., PUSCH #1 and PUSCH #2) overlap in the time domain

[0188] Scheduling scenario #3-2: The PUSCH of the scheduled party (e.g., PUSCH#1) and the other PUSCH (e.g., PUSCH#2) do not overlap in the time domain

[0189] In addition, PUSCH#1 and PUSCH#2 are equivalent to PUSCHs corresponding to separate TRP / panels.

[0190] The UE may also determine the relationship between the set rank (e.g., maximum rank) and the rank applied in each PUSCH according to whether two PUSCHs overlap in the time domain. For example, the UE may also apply at least one of the following options 3-1-1 and 3-1-2 according to scheduling scenarios #3-1 / #3-2.

[0191] [[Option 3-1-1]]

[0192] The UE may also understand that the maximum rank set by the higher-layer parameters is the maximum aggregate rank of multiple PUSCHs (for example, temporally different PUSCHs between TRPs / panels).

[0193] That is to say, the case of scheduling scenario #3-2 may also mean that the total rank of 1 PUSCH scheduled cannot exceed the value (maximum rank) set by RRC. In addition, the case of scheduling scenario #3-1 may also mean that the total rank of 2 PUSCHs cannot exceed the value (maximum rank) set by RRC.

[0194] [[Option 3-1-2]]

[0195] The UE may also understand that the maximum rank set by higher-layer parameters is the maximum aggregate rank of each PUSCH (for example, PUSCH of each TRP / panel).

[0196] In this case, only specific values ​​(e.g., 1 or 2) may be candidate values ​​for the rank. For example, the case of scheduling scenario #3-1 may also mean that each PUSCH cannot exceed the value (maximum rank) set by RRC. In addition, the case of scheduling scenario #3-2 may also mean that one PUSCH cannot exceed the value (maximum rank) set by RRC, or cannot exceed a value twice the set value.

[0197] [Option 3-2]

[0198] For simultaneous multi-panel UL transmission based on multi-DCI (e.g., multiple PUSCHs), the maximum rank (e.g., maxRank / maxRankDCI-0-2-r16) can also be set specifically / separately. That is, for multiple PUSCHs associated with each TRP / panel, it can also be supported that the maximum rank (e.g., maxRank / maxRankDCI-0-2-r16) is set separately through high-layer signaling.

[0199] For example, a first high-level parameter corresponding to the maximum rank may be set for PUSCH#1 associated with the first TRP / panel, and a second high-level parameter corresponding to the maximum rank may be set for PUSCH#2 associated with the second TRP / panel. Alternatively, the first high-level parameter may be a high-level parameter corresponding to the maximum rank supported in an existing system (e.g., before Rel.16) (e.g., maxRank / maxRankDCI-0-2-r16), and the second high-level parameter may be a new high-level parameter (e.g., maxRank-secondpanel / maxRankDCI-0-2-secondpanel) (refer to Figure 6B ).

[0200] The UE may also determine the rank to be applied to each PUSCH based on the maximum rank configured for each PUSCH. For example, the UE may also apply at least one of the following options 3-2-1 and 3-2-2.

[0201] [[Option 3-2-1]]

[0202] The UE may also assume that the sum of two values ​​set for each PUSCH (for example, the maximum rank number set for PUSCH#1 and the maximum rank number set for PUSCH#2) does not exceed the UE capability / specific value. The specific value may be 4, for example.

[0203] For each PUSCH, the base station only needs to control to set the maximum rank so that the total value does not exceed a specific value. At this time, the base station may also consider the UE capability related to the maximum rank number reported from the UE and determine the maximum rank corresponding to each PUSCH.

[0204] [[Option 3-2-2]]

[0205] It is also possible to allow / support the sum of two values ​​set for each PUSCH (for example, the maximum rank number set for PUSCH#1 and the maximum rank number set for PUSCH#2) to be set to not exceed the UE capability / specific value. In this case, control can also be performed so that the sum of the ranks of each PUSCH actually scheduled does not exceed the UE capability / specific value.

[0206] For example, the base station / UE may also set a maximum rank of 4 for PUSCH#1 (e.g., PUSCH#1 corresponding to panel#1) and a maximum rank of 2 for PUSCH#2 (e.g., PUSCH#2 corresponding to panel#2). In addition, when PUSCH#1 and PUSCH#2 overlap in the time domain, the base station / UE may also control so that the actual rank number (the total rank number of PUSCH#1 and PUSCH#2) does not exceed 4.

[0207] [Option 3-3]

[0208] For simultaneous multi-panel UL transmission based on multiple DCIs (e.g., multiple PUSCHs), the allowed rank distribution (e.g., allowed rank distribution) may be directly set for two panels (or the PUSCHs corresponding to each panel).

[0209] For example, for two panels (or, the PUSCH corresponding to each panel), the rank set for each panel can also be selected from a pre-defined specific combination. A specific combination, for example, can also support at least one of (1, 1), (2, 2), (1, 2), (2, 1), (1, 0), (2, 0), (3, 0), and (4, 0). In addition, the panel / PUSCH corresponding to 0 can also mean that it is not scheduled. For example, when (2, 0) is set, it can also mean that PUSCH#2 corresponding to the second panel is not scheduled / set.

[0210] [Option 3-4]

[0211] For simultaneous multi-panel UL transmission based on multiple DCIs (eg, multiple PUSCHs), it may also be set separately for each scheduling scenario. The scheduling scenario may also be the above-mentioned scheduling scenario #3-1 / #3-2.

[0212] For example, a first high-level parameter corresponding to the maximum rank may be set for scheduling scenario #3-2, and a second high-level parameter corresponding to the maximum rank may be set for scheduling scenario #3-1. For example, the first high-level parameter may be a high-level parameter corresponding to the maximum rank supported in an existing system (e.g., before Rel.16) (e.g., maxRank / maxRankDCI-0-2-r16). The second high-level parameter may also be a new high-level parameter (e.g., maxRank-secondpanel / maxRankDCI-0-2-secondpanel).

[0213] As a new high-level parameter set for scheduling scenario #3-1, at least one of the following options 3-4-1 / 3-4-2 may be applied.

[0214] [[Option 3-4-1]]

[0215] A parameter that applies to both panels (e.g., maxrank-twopanels) can also be set. This parameter can also be set to a specific range (e.g., 1 or 2).

[0216] [[Option 3-4-2]]

[0217] The rank allocation for the two panels can also be set. The rank allocation can also support, for example, (1, 1) and (2, 2). Of course, other rank allocations can also be supported.

[0218] 《Based on single DCI》

[0219] When simultaneous multi-panel UL transmission based on a single DCI (e.g., SiMPUL) is configured, at least one of the above options 3-1 and 3-4 may also be applied / reused for the maximum rank configuration (e.g., maxrank configuration).

[0220] The application of simultaneous multi-panel UL transmission based on a single DCI (e.g., SiMPUL) can also be set to the UE from the network (e.g., base station). For example, the base station sets the simultaneous multi-panel UL transmission based on a single DCI to the UE using high-level parameters (e.g., RRC parameters). When the CORESET pool index is not set (or, when only one value is set as the CORESET pool index), the UE can also be determined to be based on a single DCI. In addition, the maximum rank setting (e.g., maxrankconfiguration) can also be set by high-level parameters.

[0221] When at least one of the above options 3-1 and 3-4 is applied / reused for simultaneous multi-panel UL transmission based on a single DCI, "PUSCH" may be replaced with "CW". In addition, in simultaneous multi-panel UL transmission based on a single DCI, only specific scheduling scenarios (e.g., scheduling scenario #3-1) may be supported.

[0222] For simultaneous multi-panel UL transmission based on a single DCI / simultaneous multi-panel UL transmission based on multiple DCIs, the UE capability for the maximum rank can also be imported / supported on a per-panel basis.

[0223] <Changes>

[0224] In the above-mentioned embodiment, when the UE capability corresponding to the codebook / full power / rank is defined for each panel (or UE capability set), the setting of the higher layer parameters may be performed for each panel.

[0225] In the above-mentioned embodiment, when the UE capability corresponding to codebook / full power / rank is defined not in units of panels but in units of UE / BWP / CC / band, higher layer parameters may be set for each panel.

[0226] In the above embodiment, a UE with two panels activated semi-statically is cited as an example for explanation, but the invention is not limited thereto. The two panels for simultaneous multi-panel UL transmission (SiMPUL) may be selected from two or more (or more than two) panels, or the two panels may be selected dynamically. In this case, new high-layer parameters respectively associated with each panel may exist / support, and the corresponding high-layer parameters may be applied based on the scheduled / selected panel.

[0227] Both the UE capabilities related to codebook / full power / rank per panel and the UE capabilities related to codebook / full power / rank per UE / BWP / CC / band domain may also be defined. In this case, the settings (set values) of the higher layer parameters may also be limited based on the UE capabilities of both parties.

[0228] <Fourth embodiment>

[0229] In the fourth embodiment, the transmission timing / scheduling order between multiple PUSCH / DCI in simultaneous multi-panel UL transmission (e.g., SiMPUL) is described. In the following description, PUSCH transmission is cited as an example for UL transmission, but it can also be applied to other UL channels / UL signals.

[0230] In existing systems (e.g., prior to Rel. 16 / 17), specific rules are defined for the transmission timing / scheduling order of multiple PUSCHs. For example, for any HARQ process ID(s) in a scheduled cell (given scheduled cell), the UE does not assume / expect the transmission of a PUSCH that overlaps with another PUSCH in the time domain (UE action #1) (refer to Fig. 7A ).

[0231] For example, Fig. 7A As shown, in a certain cell, PUSCH#1 scheduled by DCI#1 and PUSCH#2 scheduled by DCI#2 are not allowed to overlap in the time domain.

[0232] In addition, when the UE is scheduled to start the first PUSCH transmission starting at symbol j through the PDCCH ending at symbol i, the UE does not assume / expect to be scheduled to send a PUSCH starting before the end of the first PUSCH through the PDCCH ending after symbol i (UE action #2) (refer to Figure 7B ).

[0233] For example, Figure 7B As shown, when the UE is scheduled to send PUSCH#2 starting at codeword j via PDCCH#2 (DCI#2) ending at codeword i, it is not allowed to be scheduled to send PUSCH#1 starting before the end of PUSCH#2 via PDCCH#1 (DCI#1) ending after codeword i.

[0234] In addition, in UE action #2, specific situations may also be removed. The specific situation may also be: a high-level parameter (e.g., PDCCH-Config) containing two different CORESET pool index values ​​in the control resource set (ControlResourceSet) of the activated BWP of the serving cell is set, multiple PDCCHs that schedule two PUSCHs that do not overlap in the time domain, and different control resource sets (ControlResourceSets) with different CORESET pool index values ​​are associated with any two HARQ process IDs in a scheduled cell.

[0235] 《Based on Multiple DCI》

[0236] [UE Action #1]

[0237] When simultaneous multi-panel UL transmission based on multi-DCI (e.g., SiMPUL) is configured, UE action #1 may also be applied to PUSCHs scheduled through the same TRP / panel. In this case, UE action #1 may not be restricted for PUSCHs scheduled through multiple (e.g., 2) TRPs / panels.

[0238] In this case, for any HARQ process ID(s) within a given scheduled cell, the UE does not assume / expect the transmission of a PUSCH associated with the same panel ID (e.g., same new-panel-ID) that overlaps with other PUSCHs in the time domain.

[0239] For example, in a certain cell, it may also be allowed / supported that PUSCH#1 scheduled by PDCCH#1 (or, DCI#1) corresponding to the first TRP / panel and PUSCH#2 scheduled by PDCCH#2 (or, DCI#2) corresponding to the second TRP / panel overlap in the time domain (refer to Fig. 8A ).

[0240] [UE Action #2]

[0241] When simultaneous multi-panel UL transmission based on multi-DCI (e.g., SiMPUL) is configured, UE action #2 may also be applied to PUSCHs scheduled through the same TRP / panel. In this case, UE action #2 may not be restricted for PUSCHs scheduled through multiple (e.g., 2) TRPs / panels.

[0242] In this case, as a specific case to which UE action #2 is not applied, it may also be defined as follows. The specific case may also be a case where a high-level parameter (e.g., PDCCH-Config) containing two different CORESET pool index values ​​in the control resource set (ControlResourceSet) of the activated BWP of the serving cell is set, and multiple PDCCHs that schedule two PUSCHs that do not overlap or overlap in the time domain are associated with different control resource sets (ControlResourceSets) with different CORESET pool index values ​​for any two HARQ process IDs in a scheduled cell. Overlapping may also include at least one of partial overlapping (e.g., partial-overlapping) and full overlapping (e.g., full-overlapping). Alternatively, in a specific case, the case of non-overlapping in the time domain may also be deleted.

[0243] For example, assume that PUSCH#1 is scheduled via PDCCH#1 (or DCI#1) corresponding to the first TRP / panel and PUSCH#2 is scheduled via PDCCH#2 (or DCI#2) corresponding to the second TRP / panel. In this case, when the UE is scheduled to send PUSCH#2 starting at symbol j via PDCCH#2 (DCI#2) ending at symbol i, it may not be allowed / supported to send PUSCH#1 starting before the end of PUSCH#2 via PDCCH#1 (DCI#1) ending after symbol i (refer to Figure 8B ).

[0244] In addition, in simultaneous multi-panel UL transmission based on multiple DCIs, when the association between multiple DCIs is set (for example, when the pair index is defined / set), UE action #1 / UE action #2 may also be configured to be applied to PUSCHs scheduled by PDCCHs (or, DCIs) with different pair indexes. On the other hand, for PUSCHs scheduled by PDCCHs (or, DCIs) with the same pair index, the restrictions of UE action #1 / UE action #2 may not be applied.

[0245] In addition, UE capabilities related to restrictions on UE actions #1 / #2 (for example, UE capabilities related to out-of-order PUSCH enhancement) may also be introduced / supported.

[0246] In the case where the UE does not have the UE capability related to the restrictions of UE action #1 / #2 (or does not correspond to out-of-order), it is also possible to allow / support scheduling of multiple PUSCHs that do not overlap in the time domain with only two PUSCHs. Furthermore, in this case, it is also possible to control the scheduling order of each PUSCH (for example, the order of scheduling the DCI of a certain PUSCH and other PUSCHs, etc.) to also satisfy UE action #2 (refer to Fig. 9 ).

[0247] <Application of delivery plan>

[0248] The first to fourth embodiments can also be supported for Figure 3A-3C Application of part or all of the transmission modes #1 to #3 shown. Which of the transmission modes #1 to #3 is applied may be defined in the specification or may be set / instructed from the base station to the UE.

[0249] In addition, in the first to fourth embodiments, whether to apply simultaneous multi-panel UL transmission based on a single DCI (SiMPUL) or simultaneous multi-panel UL transmission based on multiple DCIs can be defined in the specification or set / indicated to the UE from the base station.

[0250] Transmission methods #1 to #3 and single-DCI based SiMPUL / multi-DCI based SiMPUL may be appropriately combined and applied.

[0251] For example, transmission mode #1 (or transmission mode #1 and #2) may be applied / configured / supported to SiMPUL based on single DCI. In this case, one MIMO codebook may be applied to two PUSCHs / panels.

[0252] Alternatively, transmission mode #3 (or transmission mode #3 and #2) may be applied / configured / supported to SiMPUL based on multiple DCI. In this case, one MIMO codebook may be applied to two PUSCHs / panels, respectively.

[0253] <UE capability information>

[0254] In the first to fourth embodiments described above, the following UE capabilities (UE capabilities) may be set. In addition, the following UE capabilities may be rewritten as parameters (eg, higher layer parameters) set for the UE from the network (eg, base station).

[0255] UE capability information related to whether simultaneous multi-panel UL transmission based on a single DCI (eg, SiMP UL) is supported may also be defined.

[0256] UE capability information related to whether simultaneous multi-panel UL transmission based on multiple DCI (eg, SiMP UL) is supported may also be defined.

[0257] UE capability information related to whether full overlapping / partial overlapping / non overlapping is supported in time / frequency resources of multiple PUSCHs may also be defined.

[0258] UE capability information related to whether out-of-order support of multiple PUSCHs may also be defined.

[0259] The first to fourth embodiments may be configured so that at least one of the above-mentioned UE capabilities is applied to a UE that supports / reports. Alternatively, the first to fourth embodiments may be configured so that they are applied to a UE that is configured from a network.

[0260] (Wireless Communication System)

[0261] 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 any one of the wireless communication methods according to the above-mentioned embodiments of the present disclosure or a combination thereof.

[0262] Fig.10 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.

[0263] 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.

[0264] 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.

[0265] 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)).

[0266] 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 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 base stations 10.

[0267] 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).

[0268] 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 (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 these. For example, FR1 may also be equivalent to a frequency band higher than FR2.

[0269] Furthermore, in each CC, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD).

[0270] Multiple base stations 10 may also be connected via wired (e.g., optical fiber based on Common Public Radio Interface (CPRI)), X2 interface, etc.) or wireless (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 (relay) may also be referred to as an IAB node.

[0271] 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.

[0272] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0273] 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.

[0274] 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 used as the radio access schemes for UL and DL.

[0275] 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.

[0276] 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.

[0277] User data, high-layer control information, system information block (SIB), etc. are transmitted through PDSCH. User data, high-layer control information, etc. can also be transmitted through PUSCH. In addition, master information block (MIB) can also be transmitted through PBCH.

[0278] 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.

[0279] In addition, the DCI for scheduling the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI for scheduling the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be rewritten as DL data, and the PUSCH may also be rewritten as UL data.

[0280] 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.

[0281] A search space may also correspond to a PDCCH candidate corresponding to 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 rewritten mutually.

[0282] Uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., also known as hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR) can also be transmitted through PUCCH. The random access preamble used to establish a connection with a cell can also be transmitted through PRACH.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] 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).

[0287] (Base Station)

[0288] Fig.11 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.

[0289] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may also be omitted.

[0290] 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 common knowledge in the technical field to which the present disclosure relates.

[0291] 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.

[0292] 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 common knowledge in the technical field involved in the present disclosure.

[0293] 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.

[0294] The transmitting / receiving antenna 130 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0295] 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.

[0296] 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.

[0297] 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 and control information obtained from the control unit 110 to generate a bit string to be sent.

[0298] 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 (filtering processing), discrete Fourier transform (Discrete Fourier Transform (DFT)) processing (as needed), inverse fast Fourier transform (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.

[0299] 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 .

[0300] On the other hand, the transmitting and receiving unit 120 (RF unit 122 ) may also 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 130 .

[0301] The sending 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 to the acquired baseband signal to obtain user data, etc.

[0302] 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.

[0303] The transmission path interface 140 can also send and receive signals (return signaling) between 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.

[0304] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission and reception unit 120 , the transmission and reception antenna 130 , and the transmission path interface 140 .

[0305] In addition, the transmitting and receiving unit 120 may also transmit first downlink control information for scheduling a first UL channel associated with at least one of the first panel and a transmitting and receiving point (TRP) and second downlink control information for scheduling a second UL channel associated with at least one of the second panel and the TRP. The control unit 110 may also control the reception of the first UL channel and the second UL channel. For the first UL channel and the second UL channel, at least a portion may be transmitted in the same time domain.

[0306] In the case of supporting UL transmission using multiple panels including at least a first panel and a second panel, the transmitting and receiving unit 120 may also transmit a first parameter set in common or a second parameter set separately for a first UL channel associated with the first panel and at least one of the transmitting and receiving points (TRPs) and a second UL channel associated with the second panel and at least one of the TRPs. The control unit 110 may also control the scheduling of the first UL channel and the second UL channel through a single downlink control information or a plurality of downlink control information. The transmitting and receiving unit 120 may also receive the first UL channel and the second UL channel to which the first parameter or the second parameter is applied.

[0307] The transmitting and receiving unit 120 may also transmit first downlink control information for scheduling the first UL channel and second downlink control information for scheduling the second UL channel. The control unit 110 may also control at least one of application of a first UE action related to the transmission of the first UL channel and the second UL channel in the time domain and application of a second UE action related to the transmission order of each downlink control information and each UL channel based on whether the panels or transmission reception points (TRPs) respectively corresponding to the first downlink control information and the second downlink control information are the same.

[0308] (User Terminal)

[0309] Fig.12 2 is a diagram showing an example of a configuration of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. In addition, the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may each be provided with one or more.

[0310] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable 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.

[0311] 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 common knowledge in the technical field to which the present disclosure relates.

[0312] 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.

[0313] 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 common knowledge in the technical field involved in the present disclosure.

[0314] 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.

[0315] The transmitting / receiving antenna 230 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0316] 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.

[0317] 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.

[0318] The sending and receiving unit 220 (sending processing unit 2211) 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.

[0319] 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.

[0320] 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.

[0321] 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 .

[0322] 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 .

[0323] 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 obtained baseband signal to obtain user data, etc.

[0324] 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.

[0325] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0326] The transmitting and receiving unit 220 may also receive first downlink control information for scheduling a first UL channel associated with at least one of the first panel and a transmitting and receiving point (TRP) and second downlink control information for scheduling a second UL channel associated with at least one of the second panel and the TRP. The control unit 210 may also control the transmission of the first UL channel and the second UL channel. For the first UL channel and the second UL channel, at least a portion may be transmitted in the same time domain.

[0327] The first UL channel and the second UL channel may also correspond to the same number of codewords (for example, CW=1). Alternatively, at least a portion of the first UL channel and the second UL channel may be transmitted in the same frequency domain. Alternatively, the first UL channel and the second UL channel may also be transmitted in different frequency domains set within a specific gap range.

[0328] In the case of supporting UL transmission using multiple panels including at least a first panel and a second panel, the transmission and reception unit 220 may also receive a first parameter set in common or a second parameter set separately for a first UL channel associated with the first panel and at least one of the transmission and reception points (TRPs) and a second UL channel associated with the second panel and at least one of the TRPs. The control unit 210 may also apply the first parameter or the second parameter to the transmission of the first UL channel and the second UL channel scheduled by a single downlink control information or a plurality of downlink control information.

[0329] The first parameter or the second parameter may also be a parameter related to at least one of the codebook subset setting and the UL full power transmission. Alternatively, the first parameter or the second parameter may also be a parameter related to the maximum rank setting. The control unit 210 may also determine the relationship between the maximum rank setting and the rank applied to the first UL channel and the second UL channel based on whether the first UL channel and the second UL channel overlap in the same time domain.

[0330] The transmitting and receiving unit 220 may also receive first downlink control information for scheduling a first UL channel and second downlink control information for scheduling a second UL channel. The control unit 210 may also control at least one of application of a first UE action related to the first UL channel transmission and the second UL channel transmission in the time domain and application of a second UE action related to the transmission order of each downlink control information and each UL channel based on whether the panels or transmission and reception points (TRPs) respectively corresponding to the first downlink control information and the second downlink control information are the same.

[0331] The control unit 210 may also apply at least one of the first UE action (restriction) and the second UE action (restriction) when the panels or transmission reception points (TRPs) corresponding to the first downlink control information and the second downlink control information are the same. Alternatively, the control unit 210 may not apply at least one of the first UE action (restriction) and the second UE action (restriction) when the panels or transmission reception points (TRPs) corresponding to the first downlink control information and the second downlink control information are different. The control unit 210 may also apply the first UE action (restriction) and the second UE action (restriction) when there is no specific UE capability.

[0332] (Hardware Structure)

[0333] 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.

[0334] 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 thereof is not particularly limited.

[0335] 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.131001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0336] In addition, in the present disclosure, the terms such as device, circuit, equipment, section, unit, etc. can be interchangeably used. 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.

[0337] 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.

[0338] 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.

[0339] 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.

[0340] 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 causes 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.

[0341] 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), or 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.

[0342] 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)), a digital versatile disk, a Blu-ray (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 suitable storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0343] 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 may 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. may also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) may also be realized by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0344] 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).

[0345] 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 may be configured as different buses between the devices.

[0346] 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.

[0347] (Variation Example)

[0348] 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 rewritten 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.

[0349] 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).

[0350] Here, the parameter set may also be 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 a subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, a wireless frame structure, a specific filter processing performed by a transmitter and receiver in the frequency domain, a specific windowing processing performed by a transmitter and receiver in the time domain, and the like.

[0351] 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.

[0352] 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.

[0353] 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 replaced with each other.

[0354] For example, a subframe may be referred to as a TTI, a plurality of consecutive subframes may be referred to as a TTI, and a time slot or a mini time slot may be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. In addition, the unit representing a TTI may be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0355] 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.

[0356] 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 be shorter than the TTI.

[0357] In addition, when a time slot or a mini time slot is called TTI, one or more TTIs (i.e., one or more time slots or one or more mini time slots) can 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 can also be controlled.

[0358] 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.

[0359] In addition, a long TTI (e.g., normal TTI, subframe, etc.) can also be rewritten as a TTI with a time length exceeding 1 ms, and a short TTI (e.g., shortened TTI, etc.) can also be rewritten as a TTI with a TTI length shorter than that of the long TTI and longer than 1 ms.

[0360] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may 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.

[0361] 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.

[0362] 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.

[0363] In addition, a resource block may be composed of one or more resource elements (RE). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0364] Bandwidth Part (BWP) (also referred to as partial bandwidth, etc.) may also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a carrier. Here, common RBs may also be identified by the index of the RB relative to the common reference point of the carrier. PRBs may also be defined in a BWP and numbered within the BWP.

[0365] 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.

[0366] At least one of the set BWPs may be activated, and the UE may not assume that it will transmit or receive a specific signal / channel other than the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".

[0367] 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.

[0368] 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.

[0369] In the present disclosure, the names used for parameters, etc. are not restrictive in all respects. Furthermore, the mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in the present disclosure. 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 restrictive in all respects.

[0370] Information, signals, etc. described in this 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.

[0371] 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.

[0372] 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.

[0373] 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.

[0374] 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)).

[0375] 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).

[0376] 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).

[0377] 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.

[0378] 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.

[0379] 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.

[0380] 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.

[0381] 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.

[0382] 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.

[0383] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” can be used interchangeably.

[0384] There are also cases where a mobile station is referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand set, user agent, mobile client, client or several other appropriate terms.

[0385] At least one of the base station and the mobile station may also be referred to as a transmission device, a reception device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station may be a device mounted on a moving object, a moving object body, etc.

[0386] The mobile body refers to a movable object, and the moving speed is arbitrary, and of course it also includes the situation where the mobile body stops. The mobile body includes, for example, vehicles, transport vehicles, cars, automatic two-wheeled vehicles, bicycles, networked cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trailers, rickshaws, ships (ships and other watercrafts), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quadcopters, balloons and objects carried by them, and are not limited to these. In addition, the mobile body can also be a mobile body that moves autonomously based on operating instructions.

[0387] The mobile body may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile body that moves unmanned (e.g., a drone, an autonomous 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.

[0388] Fig.14 1 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0389] The driving unit 41 is composed of at least one of an engine, a motor, or a combination of an engine and a motor. The steering unit 42 is composed of at least a steering wheel (also called a steering wheel), and performs steering of at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

[0390] The electronic control unit 49 is composed of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be referred to as an ECU (Electronic Control Unit).

[0391] The signals from the various sensors 50-58 include a current signal from a current sensor 50 for sensing the current of the motor, a speed signal of the front wheels 46 / rear wheels 47 obtained by a speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58, and the like.

[0392] The information service unit 59 is composed of various devices such as a car navigation system, an audio system, a speaker, a display, a television, and a radio for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information obtained from an external device via the communication module 60, etc. to provide various information / services (for example, multimedia information / multimedia services) to the occupants of the vehicle 40.

[0393] The information service unit 59 may include input devices for accepting input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.), and may also include output devices for implementing output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0394] The driving assistance system unit 64 is composed of various devices for providing functions for preventing accidents before they happen or reducing the driver's driving load, such as millimeter wave radar, light detection and ranging (LiDAR), camera, positioning device (for example, Global Navigation Satellite System (GNSS)), map information (for example, high-precision (High Definition (HD))) map, autonomous vehicle (Autonomous Vehicle (AV)) map, etc.), gyroscope system (for example, inertial measurement unit (Inertial Measurement Unit (IMU))), inertial navigation unit (Inertial Navigation System (INS))), artificial intelligence (Artificial Intelligence (AI)) chip, AI processor, and one or more ECUs that control these devices. In addition, the driving assistance system unit 64 sends and receives various information via the communication module 60 and realizes driving assistance function or autonomous driving function.

[0395] The communication module 60 can communicate with the microprocessor 61 and the components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) between the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58 of the vehicle 40 via the communication port 63.

[0396] The communication module 60 can be controlled by the microprocessor 61 of the electronic control unit 49, and is a communication device that can communicate with an external device. For example, various information is sent and received between external devices via wireless communication. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, user terminal 20, etc. In addition, the communication module 60 can also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (it can also function as at least one of the base station 10 and user terminal 20).

[0397] The communication module 60 may also transmit at least one of the signals from the various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may also be referred to as an input unit that receives input. For example, the PUSCH transmitted through the communication module 60 may also include information based on the above input.

[0398] The communication module 60 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) transmitted from an external device, and displays it to the information service unit 59 provided in the vehicle. The information service unit 59 may also be referred to as an output unit for outputting information (for example, outputting information to a display, a speaker, etc. based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0399] In addition, the communication module 60 stores various information received from the external device in the memory 62 that can be used by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the various sensors 50-58, etc., which are provided in the vehicle 40 based on the information stored in the memory 62.

[0400] In addition, the base station in the present disclosure may also be rewritten as 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 rewritten as 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, terms such as "uplink" and "downlink" may also be rewritten as terms corresponding to inter-terminal communication (for example, "sidelink"). For example, uplink channels, downlink channels, etc. may also be rewritten as sidelink channels.

[0401] Likewise, the user terminal in the present disclosure may be rewritten as a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0402] In the present disclosure, operations are assumed to be performed by a base station, and sometimes by its upper node depending on the situation. 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 a 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.

[0403] 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, timings, flow charts, etc. of the various methods / implementations described in this disclosure may be swapped 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.

[0404] 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 (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, modified, created or specified based on them. In addition, multiple systems can also be applied in combination (for example, LTE or LTE-A, combination with 5G, etc.).

[0405] The phrase “based on” used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the phrase “based on” means both “based only on” and “based at least on”.

[0406] 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 the first and second elements 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.

[0407] The term "determining" used in the present disclosure may include a variety of operations. 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".

[0408] 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)".

[0409] In addition, "judgment (decision)" can also be regarded as a situation where resolving, selecting, choosing, establishing, comparing, etc. are regarded as a situation where "judgment (decision)" is performed. That is, "judgment (decision)" can also be regarded as a situation where some actions are regarded as a situation where "judgment (decision)" is performed.

[0410] In addition, "judge (decide)" can also be rewritten as "assuming (assuming)", "expecting (expecting)", "considering (considering)" and so on.

[0411] 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 rewritten as "access".

[0412] 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.

[0413] 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 manner as "different".

[0414] 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.

[0415] 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.

[0416] 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 mode without departing from the gist and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustrative description and does not have any limiting meaning on the invention involved in the present disclosure.

Claims

1. A terminal having: a receiving unit, receiving first downlink control information for scheduling a first UL channel associated with at least one of a first panel and a Transmission Reception Point (TRP) and second downlink control information for scheduling a second UL channel associated with at least one of a second panel and a TRP; and a control unit, configured to control the transmission of the first UL channel and the second UL channel, For the first UL channel and the second UL channel, at least a portion is transmitted in the same time domain.

2. The terminal according to claim 1, wherein: The first UL channel and the second UL channel correspond to the same number of codewords.

3. The terminal according to claim 1 or 2, wherein: For the first UL channel and the second UL channel, at least a portion is transmitted in the same frequency domain.

4. The terminal according to claim 1 or 2, wherein: The first UL channel and the second UL channel are respectively transmitted in different frequency domains set within a specific gap range.

5. A wireless communication method, which is a wireless communication method of a terminal, comprising: A receiving step of receiving first downlink control information for scheduling a first UL channel associated with at least one of a first panel and a Transmission Reception Point (TRP) and second downlink control information for scheduling a second UL channel associated with at least one of a second panel and a TRP; and a control step of controlling the transmission of the first UL channel and the second UL channel, For the first UL channel and the second UL channel, at least a portion is transmitted in the same time domain.

6. A base station, comprising: a transmitting unit, transmitting first downlink control information for scheduling a first UL channel associated with at least one of a first panel and a transmission reception point (TRP) and second downlink control information for scheduling a second UL channel associated with at least one of a second panel and a TRP; and a control unit, controlling reception of the first UL channel and the second UL channel, For the first UL channel and the second UL channel, at least a portion is transmitted in the same time domain.

Images