Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure is provided with: a receiving unit that receives a synchronization signal block (SSB); and a control unit that, when an uplink (UL) signal in a specific time domain overlaps with the SSB corresponding to an additional physical cell ID (PCI) set for beam measurement or reporting, performs control so as not to transmit the UL signal in at least a portion of the specific time domain. According to one embodiment of the present disclosure, beam reporting (CSI reporting) can be appropriately performed.

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 a Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) has been standardized for the purpose of further high-speed data rates, low latency, etc. (Non-Patent Document 1). In addition, for the purpose of further large capacity and high performance of LTE (Third Generation Partnership Project (3GPP (registered trademark)) Release (Rel.) 8, 9), LTE-Advanced (3GPP Rel. 10-14) has been standardized.

[0003] Research is also being conducted on subsequent systems of LTE (for example, also referred to as the 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 and later, etc.).

[0004] Prior Art Documents

[0005] Non-Patent Documents

[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 a wireless communication system, research is being conducted on one or more cells / Transmission / Reception Points (TRPs) (Multi-TRP (MTRP)) for downlink (DL) transmission to a terminal (user terminal, User Equipment (UE)).

[0009] In the case of applying multi-TRP, the serving cell may be switched to a cell (additional cell) with a different Physical Cell ID (PCI) from the serving cell by signaling of at least one of layer 1 and layer 2 (layer1 / layer2 inter-cell mobility).

[0010] However, in the case of inter-cell mobility in multi-TRP, if the conflict between the SSB corresponding to the additional cell (additional PCI) and the UL signal is not appropriately considered, beam reporting (CSI reporting) may not be appropriately performed. If the L1 beam reporting (CSI reporting) cannot be appropriately performed, there is a concern that problems such as a decrease in communication throughput may occur.

[0011] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station capable of appropriately performing beam reporting (CSI reporting).

[0012] Means for Solving the Problem

[0013] A terminal according to one aspect of the present disclosure is characterized by including: a receiving unit that receives a Synchronization Signal Block (SSB); and a control unit that controls so as not to transmit the UL signal in at least a part of the specific time domain when the UL signal overlaps with the SSB corresponding to an additional Physical Cell ID (PCI) set for beam measurement or reporting in the specific time domain.

[0014] Effect of the Invention

[0015] According to one aspect of the present disclosure, beam reporting (CSI reporting) can be appropriately performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figures 1A - 1D It is a diagram showing a structural example of multi-TRP.

[0017] Figure 2A It is a diagram showing an example of the movement of a UE in Rel.17. Figure 2B It is a diagram showing an example of the movement of a UE in Rel.18.

[0018] Figure 3A and Figure 3B is a diagram showing an example of the first embodiment.

[0019] Figure 4 is a diagram showing an example of the schematic configuration of a wireless communication system according to one embodiment.

[0020] Figure 5 is a diagram showing an example of the configuration of a base station according to one embodiment.

[0021] Figure 6 is a diagram showing an example of the configuration of a user terminal according to one embodiment.

[0022] Figure 7 is a diagram showing an example of the hardware configuration of a base station and a user terminal according to one embodiment.

[0023] Figure 8 is a diagram showing an example of a vehicle according to one embodiment. Detailed Embodiment

[0024] (CSI Report (CSI report or reporting))

[0025] In Rel.15 NR, a terminal (also referred to as a user terminal, User Equipment (UE), etc.) generates (also referred to as determines, calculates, estimates, measures, etc.) channel state information (Channel State Information (CSI)) based on a reference signal (Reference Signal (RS)) (or the resources for the RS), and sends (also referred to as reports, feeds back, etc.) the generated CSI to the network (e.g., a base station). The CSI can be sent to the base station using, for example, an uplink control channel (e.g., Physical Uplink Control Channel (PUCCH)) or an uplink shared channel (e.g., Physical Uplink Shared Channel (PUSCH)).

[0026] The RS used in the generation of CSI may also be at least one of, for example, Channel State Information Reference Signal (CSI-RS), Synchronization Signal / Physical Broadcast Channel (SS / PBCH) block, Synchronization Signal (SS), DeModulation Reference Signal (DMRS), etc.

[0027] CSI-RS may also include at least one of Non Zero Power (NZP) CSI-RS and CSI-Interference Management (CSI-IM). The SS / PBCH block is a block that includes SS and PBCH (and the corresponding DMRS), and may also be referred to as an SS block (SSB), etc. In addition, SS may also include at least one of Primary Synchronization Signal (PSS) and Secondary Synchronization Signal (SSS).

[0028] In addition, the CSI may also include at least one of a Channel Quality Indicator (CQI), a Precoding Matrix Indicator (PMI), a CSI-RS Resource Indicator (CRI), an SS / PBCH Block Resource Indicator (SSBRI), a Layer Indicator (LI), a Rank Indicator (RI), an L1-RSRP (Layer 1 Reference Signal Received Power), an L1-RSRQ (Reference Signal Received Quality), an L1-SINR (Signal to Interference plus Noise Ratio), an L1-SNR (Signal to Noise Ratio), etc.

[0029] The UE may also receive information related to CSI reporting (report configuration information) and control CSI reporting based on the report configuration information. The report configuration information may also be, for example, the "CSI-ReportConfig" of an Information Element (IE) of Radio Resource Control (RRC). In addition, in the present disclosure, the RRC IE may also be rewritten in combination with RRC parameters, high-layer parameters, etc.

[0030] The report configuration information (e.g., the "CSI-ReportConfig" of the RRC IE) may also include at least one of the following, for example.

[0031] · Information related to the type of CSI reporting (report type information, e.g., the "reportConfigType" of the RRC IE)

[0032] · Information related to one or more quantities of CSI to be reported (one or more CSI parameters) (report quantity information, e.g., the "reportQuantity" of the RRC IE)

[0033] · Information related to the resource for RS used in the generation of this quantity (this CSI parameter) (resource information, e.g., "CSI-ResourceConfigId" of the RRC IE)

[0034] · Information related to the frequency domain that is the object of the CSI report (frequency domain information, e.g., "reportFreqConfiguration" of the RRC IE)

[0035] For example, the report type information can also represent (indicate) a periodic CSI (Periodic CSI (P-CSI)) report, an aperiodic CSI (Aperiodic CSI (A-CSI)) report, or a semi-persistent CSI (Semi-Persistent CSI (SP-CSI)) report.

[0036] In addition, the reported quantity information can also specify a combination of at least one of the above CSI parameters (e.g., CRI, RI, PMI, CQI, LI, L1-RSRP, etc.).

[0037] In addition, the resource information can also be the ID of the resource for RS. The resource for RS can also include, for example, a CSI-RS resource with non-zero power or an SSB, and a CSI-IM resource (e.g., a CSI-RS resource with zero power).

[0038] In addition, the frequency domain information can also represent the frequency granularity of the CSI report. The frequency granularity can also include, for example, wideband and subbands. The wideband is the entire CSI reporting band. The wideband can be, for example, the entire of a certain carrier (Component Carrier (CC), cell, serving cell), or the entire bandwidth part (Bandwidth part (BWP)) within a certain carrier. The wideband can also be alternatively referred to as the CSI reporting band, the entire CSI reporting band, etc.

[0039] In addition, a subband is a part within the wideband and can be composed of one or more resource blocks (Resource Block (RB) or Physical Resource Block (PRB)). The size of the subband can also be determined according to the size of the BWP (number of PRBs).

[0040] The frequency domain information may also indicate which of the wideband or subbands the PMI is to be reported for (the frequency domain information may also include, for example, the "pmi-FormatIndicator" of the RRC IE for the decision for either wideband PMI reporting or subband PMI reporting). The UE may also determine the frequency granularity of the CSI report (i.e., either wideband PMI reporting or subband PMI reporting) based on at least one of the above reporting quantity information and the frequency domain information.

[0041] In the case where wideband PMI reporting is configured (determined), one wideband PMI may also be reported for the entire CSI reporting band. On the other hand, in the case where subband PMI reporting is configured, it may also be that a single wideband indication is reported for the entire CSI reporting band. 1 and one subband indication (one subband indication) for each of more than one subband within the entire CSI report is reported. 2 (For example, the subband indication for each subband).

[0042] The UE uses the received RS to perform channel estimation and estimates the channel matrix H. The UE feeds back an index (PMI) determined based on the estimated channel matrix.

[0043] The PMI may also indicate a precoder matrix (which may also be abbreviated as a precoder) that the UE believes is suitable for downlink (downlink (DL)) transmission to the UE. Each value of the PMI may correspond to a precoder matrix. The set of values of the PMI may correspond to a set of different precoder matrices referred to as a precoder codebook (which may also be abbreviated as a codebook).

[0044] In the space domain, the CSI report may also include more than one type of CSI. For example, the CSI may include at least one of a first type (type 1 CSI) used in the selection of a single beam and a second type (type 2 CSI) used in the selection of multiple beams. A single beam may also be referred to as a single layer, and multiple beams may also be referred to as multiple beams. In addition, for type 1 CSI, multi-user multiple input multiple output (multiple input multiple output (MIMO)) may not be assumed, and for type 2 CSI, multi-user MIMO may be assumed.

[0045] The above codebook may also include a codebook for type 1 CSI (also referred to as a type 1 codebook, etc.) and a codebook for type 2 CSI (also referred to as a type 2 codebook, etc.). In addition, type 1 CSI may also include type 1 single-panel CSI and type 1 multi-panel CSI, and different codebooks (type 1 single-panel codebook, type 1 multi-panel codebook) may be specified respectively.

[0046] In the present disclosure, type 1 and type I may also be rewritten with each other. In the present disclosure, type 2 and type II may also be rewritten with each other.

[0047] The uplink control information (UCI) type may also include at least one of hybrid automatic repeat request acknowledgement (HARQ-ACK), scheduling request (SR), and CSI. UCI may be carried either through PUCCH or through PUSCH.

[0048] In Rel. 15 NR, UCI can include one CSI part for wideband PMI feedback. When CSI report #n is reported, it includes wideband PMI information.

[0049] In Rel. 15 NR, UCI can include two CSI parts for subband PMI feedback. CSI part 1 includes wideband PMI information. CSI part 2 includes one wideband PMI information and several subband PMI information. CSI part 1 and CSI part 2 are encoded separately.

[0050] In Rel.15 NR, the UE is configured by higher layers with N (N≥1) report configurations for CSI reports and M (M≥1) resource configurations for CSI resources. For example, a CSI report configuration (CSI-ReportConfig) includes resource configurations for channel measurement (resourcesForChannelMeasurement), CSI-IM resources for interference (csi-IM-ResourceForInterference), NZP-CSI-RS resources for interference (nzp-CSI-RS-ResourceForInterference), report quantity (reportQuantity), etc. Each of the resource configurations for channel measurement, CSI-IM resources for interference, and NZP-CSI-RS resources for interference is associated with a CSI resource configuration (CSI-ResourceConfig, CSI-ResourceConfigId). The CSI resource configuration includes a list of CSI-RS resource sets (csi-RS-ResourceSetList, e.g., NZP-CSI-RS resource sets or CSI-IM resource sets).

[0051] In order to enable the preconditions (hypotheses) for further dynamic channel / interference for NCJT for both FR1 and FR2, the evaluation and specification of CSI reports for DL transmission of at least one of multi-TRP and multi-panel are being studied.

[0052] (Multi-TRP)

[0053] In NR, it is being studied that one or more transmission / reception points (Transmission / Reception Point (TRP)) (multi-TRP) use one or more panels (multi-panel) to perform DL transmission to the UE. In addition, it is being studied that the UE performs UL transmission to one or more TRPs.

[0054] In addition, multiple TRPs may correspond to the same cell identifier (cell Identifier (ID)), or may correspond to different cell IDs. This cell ID may be a physical cell ID or a virtual cell ID.

[0055] Figures 1A - 1D It is a diagram showing an example of a multi-TRP scenario. In these examples, it is assumed that each TRP can transmit 4 different beams, but this is not limiting.

[0056] Figure 1AAn example of a case where only one TRP (TRP1 in this example) among multiple TRPs transmits to the UE (which can also be referred to as single mode, single TRP, etc.). In this case, TRP1 transmits both a control signal (PDCCH) and a data signal (PDSCH) to the UE.

[0057] Figure 1B An example of a case where only one TRP (TRP1 in this example) among multiple TRPs transmits a control signal to the UE, and the multiple TRPs transmit data signals (which can also be referred to as single master mode). The UE receives each PDSCH transmitted from the multiple TRPs based on one downlink control information (Downlink Control Information (DCI)).

[0058] Figure 1C An example of a case where each TRP of multiple TRPs transmits a part of the control signal to the UE, and the multiple TRPs transmit data signals (which can also be referred to as master - slave mode). It is also possible that TRP1 transmits part 1 of the control signal (DCI), and TRP2 transmits part 2 of the control signal (DCI). Part 2 of the control signal may also depend on part 1. The UE receives each PDSCH transmitted from the multiple TRPs based on these parts of DCI.

[0059] Figure 1D An example of a case where each TRP of multiple TRPs transmits separate control signals to the UE, and the multiple TRPs transmit data signals (which can also be referred to as multi - master mode). It is also possible that TRP1 transmits the first control signal (DCI), and TRP2 transmits the second control signal (DCI). The UE receives each PDSCH transmitted from the multiple TRPs based on these DCIs.

[0060] In cases such as Figure 1B where one DCI is used to schedule multiple PDSCHs from multiple TRPs (which can also be referred to as multiple PDSCH), this DCI can also be called single DCI (S - DCI, single PDCCH). In addition, in cases such as Figure 1D where multiple DCIs are used to separately schedule multiple PDSCHs from multiple TRPs, these multiple DCIs can also be called multi - DCI (M - DCI, multiple PDCCH).

[0061] Each TRP of multiple TRPs can also separately transmit different transport blocks (Transport Block (TB)) / code words (Code Word (CW)) / different layers. Or, each TRP of multiple TRPs can also transmit the same TB / CW / layer.

[0062] As a method of multi-TRP transmission, Non-Coherent Joint Transmission (NCJT) is being studied. In NCJT, for example, TRP1 modulates and maps the first codeword, performs layer mapping, and uses the first precoding for the first number of layers (e.g., 2 layers) to transmit the first PDSCH. In addition, TRP2 modulates and maps the second codeword, performs layer mapping, and uses the second precoding for the second number of layers (e.g., 2 layers) to transmit the second PDSCH.

[0063] In addition, multiple PDSCHs (multi-PDSCHs) subject to NCJT can also be defined as partially or completely overlapping with respect to at least one of the time domain and the frequency domain. That is, for the first PDSCH from the first TRP and the second PDSCH from the second TRP, at least one of the time and frequency resources can overlap.

[0064] These first PDSCH and second PDSCH can also be considered not to be in a Quasi-Co-Location (QCL) relationship (not quasi-co-located). The reception of the multi-PDSCH can also be rewritten as the simultaneous reception of PDSCHs that are not of a certain QCL type (e.g., QCL type D).

[0065] It is being studied to support the repetition of PDSCHs (transport blocks (TBs) or codewords (CWs)) across multiple TRPs in URLLC for multi-TRP. It is being studied to support repetition methods across multiple TRPs in the frequency domain or layer (space) domain or time domain (URLLC schemes, e.g., Scheme 1, 2a, 2b, 3, 4). In Scheme 1, the multi-PDSCHs from multiple TRPs are subject to space division multiplexing (SDM). In Schemes 2a and 2b, the PDSCHs from multiple TRPs are subject to frequency division multiplexing (FDM). In Scheme 2a, the redundancy version (RV) is the same for multiple TRPs. In Scheme 2b, the RVs for multiple TRPs can be the same or different. In Schemes 3 and 4, the multi-PDSCHs from multiple TRPs are subject to time division multiplexing (TDM). In Scheme 3, the multi-PDSCHs from multiple TRPs are transmitted within one time slot. In Scheme 4, the multi-PDSCHs from multiple TRPs are transmitted in different time slots.

[0066] In such a multi-TRP scenario, more flexible transmission control using a good-quality channel can be performed.

[0067] NCJT using multiple TRPs / panels has the potential to use high rank. To support both ideal and non-ideal backhaul between multiple TRPs, single DCI (single PDCCH, e.g., Figure 1B ) and multi-DCI (multi-PDCCH, e.g., Figure 1D ) can both be supported. For both single DCI and multi-DCI, the maximum number of TRPs can also be 2.

[0068] Regarding the single PDCCH design (mainly for ideal backhaul), an extension of TCI is being studied. Each TCI code point in DCI can also correspond to one or two TCI states. The TCI field size can also be the same as the TCI field size in Rel.15.

[0069] (L1 / L2 inter-cell mobility)

[0070] As described above, it is being studied that the UE performs UL transmission to one or more cells / TRPs. As a process in this case, the following Scenario 1 or Scenario 2 is considered. In addition, in this disclosure, the serving cell can also be rewritten as the TRP within the serving cell. Layer 1 / layer 2 (L1 / L2), DCI / Medium Access Control Control Element (MAC CE) can also be rewritten with each other. In this disclosure, sometimes the PCI different from the physical cell ID (Physical Cell Identity (PCI)) of the current serving cell is abbreviated as "different PCI". The non-serving cell, the cell with a different PCI, and the additional cell can also be rewritten with each other.

[0071] <Scenario 1>

[0072] Scenario 1 corresponds, for example, to the inter-cell mobility of multiple TRPs, but can also be a scenario that does not correspond to the inter-cell mobility of multiple TRPs.

[0073] (1) The UE receives from the serving cell: the setting of the SSB for beam measurement corresponding to the TRP with a PCI different from that of the serving cell, and the setting required to use radio resources for data transmission and reception including the resources with different PCI.

[0074] (2) The UE performs beam measurement on the TRP corresponding to the different PCI and reports the beam measurement result to the serving cell.

[0075] (3) Based on the above report, the Transmission Configuration Indication (TCI) state associated with the TRPs corresponding to different PCIs is activated by L1 / L2 signaling from the serving cell.

[0076] (4) The UE uses the UE-dedicated channels on the TRPs corresponding to different PCIs for transmission and reception.

[0077] (5) The UE needs to always be covered by the serving cell, including the case of multiple TRPs. Similar to the previous system, the UE needs to use the common channels from the serving cell (Broadcast Control Channel (BCCH), Paging Channel (PCH), etc.).

[0078] In Scenario 1, when the UE transmits and receives signals with the additional cell / TRP (the TRP corresponding to the PCI of the additional cell), the serving cell (as assumed in the serving cell of the UE) is not changed. The UE can also be set with high-layer parameters associated with the PCI of the non-serving cell from the serving cell. Scenario 1 can also be applied in Rel.17, for example.

[0079] Figure 2A It is a diagram showing an example of the movement of the UE in Rel.17. Assume that the UE moves from the cell with PCI#1 (serving cell) to the cell with PCI#3 (additional cell) (overlapping with the serving cell). In this case, in Rel.17, the serving cell does not switch through L1 / L2. The additional cell is a cell with an additional PCI different from the PCI of the serving cell. The UE can receive / transmit UE-dedicated channels from the additional cell. The UE needs to be within the coverage area of the serving cell to receive UE common channels (e.g., system information / paging / short messages).

[0080] <Scenario 2>

[0081] In Scenario 2, L1 / L2 inter-cell mobility is applied. In L1 / L2 inter-cell mobility, the serving cell can be changed using functions such as beam control without performing RRC reconfiguration. In other words, transmission and reception with the additional cell can be performed without handover. Since there is a period during which data communication cannot be performed due to the need for RRC reconnection, etc. for handover, by applying L1 / L2 inter-cell mobility that does not require handover, data communication can be continued even when the serving cell is changed. Scenario 2 can also be applied in Rel.18, for example. In Scenario 2, for example, the following process is performed.

[0082] (1) For beam measurement / change of serving cell, the UE receives the configuration of SSBs of cells (additional cells) with different PCIs from the serving cell.

[0083] (2) The UE performs beam measurement of cells with different PCIs and reports the measurement results to the serving cell.

[0084] (3) The UE can also receive the configuration of cells with different PCIs (serving cell configuration) through higher layer signaling (e.g., RRC). That is, prior configuration related to serving cell change can also be performed. This configuration can be performed together with the configuration in (1) or separately.

[0085] (4) Based on the above report, the TCI state of cells with different PCIs can also be activated by L1 / L2 signaling according to the change of the serving cell. The activation of the TCI state and the change of the serving cell can also be performed separately.

[0086] (5) The UE changes the serving cell (assumption of serving cell) and starts receiving / transmitting using the UE-specific channels and TCI states that are pre-configured.

[0087] That is, in Scenario 2, the serving cell (assumption of serving cell in the UE) is updated by L1 / L2 signaling. Scenario 2 can also be applied in Rel.18.

[0088] Figure 2B It is a diagram showing an example of the movement of the UE in Rel.18. In Rel.18, the serving cell is switched by L1 / L2. The UE can receive / transmit UE-specific channels / common channels between it and the new serving cell. The UE can also get out of the coverage area of the previous serving cell.

[0089] (Analysis)

[0090] It is being studied that when there is inter-cell mobility in multiple TRPs, in a certain time domain (time slot or symbol), when the PUCCH / PUSCH / PRACH / SRS overlaps with the SSB corresponding to the serving cell (PCI of the serving cell) or the SSB associated with the activated additional PCI, the UE does not transmit the PUCCH / PUSCH / PRACH in that time slot or the SRS in that symbol.

[0091] However, in the case of restricting only the SSB of the serving cell or the "SSB associated with the activated additional PCI", when the SSB set for L1 measurement is not associated with the activated additional PCI, if a conflict occurs, the UE may perform UL transmission without performing L1 measurement based on the SSB. That is, it may not be possible to appropriately perform L1 beam reporting (CSI reporting). Therefore, the inventors of the present invention have conceived of a terminal that can appropriately perform CSI reporting.

[0092] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The wireless communication methods according to the respective embodiments can be applied separately or in combination.

[0093] In the present disclosure, "A / B" and "at least one of A and B" can be rewritten as each other. Further, in the present disclosure, "A / B / C" can also mean "at least one of A, B, and C".

[0094] In the present disclosure, notification, activation, deactivation, indication (or designation (indicate)), selection (select), configuration (configure), update (update), determination (determine), etc. can also be rewritten as each other. In the present disclosure, support, control, capable of controlling, operation, capable of operating, etc. can also be rewritten as each other.

[0095] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, Information Element (IE), settings, etc. can also be rewritten as each other. In the present disclosure, Medium Access Control control element (MAC Control Element (CE)), update command, activation / deactivation command, etc. can also be rewritten as each other.

[0096] In the present disclosure, the higher layer signaling can be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.

[0097] In the present disclosure, MAC signaling may also be, for example, a MAC control element (MACCE), a MAC protocol data unit (PDU), etc. Broadcast information may also be, for example, a master information block (MIB), a system information block (SIB), minimum system information (remaining minimum system information (RMSI)), other system information (OSI), etc.

[0098] In the present disclosure, physical layer signaling may also be, for example, downlink control information (DCI), uplink control information (UCI), etc.

[0099] In the present disclosure, an index, an identifier (ID), an indicator, a resource ID, etc. may also be rewritten with each other. In the present disclosure, a sequence, a list, a set, a group, a cluster, a subset, etc. may also be rewritten with each other.

[0100] In this disclosure, a panel, a UE panel, a panel group, a beam, a beam group, a precoder, an uplink (UL) transmission entity, a transmission / reception point (TRP), a base station, spatial relation information (SRI), a spatial relation, an SRS resource indicator (SRI), a control resource set (CORESET), a physical downlink shared channel (PDSCH), a codeword (CW), a transport block (TB), a reference signal (RS), an antenna port (e.g., a demodulation reference signal (DMRS) port), an antenna port group (e.g., a DMRS port group), a group (e.g., a spatial relation group, a code division multiplexing (CDM) group, a reference signal group, a CORESET group, a physical uplink control channel (PUCCH) group, a PUCCH resource group), a resource (e.g., a reference signal resource, an SRS resource), a resource set (e.g., a reference signal resource set), a CORESET pool, a transmission configuration indication state (TCI state) for the downlink (DL TCI state), a TCI state for the uplink (UL TCI state), a unified TCI state, a common TCI state, quasi-co-location (QCL), QCL assumptions, etc. may also be rewritten with each other.

[0101] In addition, a spatial relation information identifier (ID) (TCI state ID) and spatial relation information (TCI state) may also be rewritten with each other. "Spatial relation information" may also be rewritten with "a set of spatial relation information", "one or more spatial relation information", etc. A TCI state and a TCI may also be rewritten with each other.

[0102] In this disclosure, discard, abort, cancel, truncate, rate match, postpone, not transmit, etc. may also be rewritten with each other.

[0103] In the present disclosure, a cell group, a serving cell group, a master cell group (MCG), and a secondary cell group (SCG) can also be rewritten with each other. L1 / L2, L1 / L2 signaling, and DCI / MAC CE can also be rewritten with each other. The serving cell can also be replaced with the cell that transmits the PDSCH. A candidate cell can also mean a candidate cell that becomes a serving cell through L1 / L2 inter-cell mobility.

[0104] In the present disclosure, a cell, a PCI, a serving cell, a source serving cell, a CC, a BWP, a BWP within a CC, and a band can also be rewritten with each other. In the present disclosure, an additional cell, another cell, a non-serving cell, a cell having a different PCI / additional PCI, a candidate cell, a candidate serving cell, a cell having a PCI different from that of the current serving cell, another serving cell, and a target cell can also be referred to each other. In the present disclosure, an additional PCI and the PCI of an additional cell can also be rewritten with each other. In the present disclosure, handover, change, and update can also be rewritten with each other. The serving cell can also be rewritten as the serving cell before handover or the serving cell after handover.

[0105] In the present disclosure, beam measurement / reporting, L1 beam measurement / reporting, L1 measurement / reporting, and CSI measurement / reporting can also be rewritten with each other. L1 can also represent at least one of L1-RSRP and L1-SINR. RS can also be at least one of CSI-RS and SSB. L1-RSRP and L1-SINR can also be rewritten with each other. SSB, SSB index, and SSBRI can also be rewritten with each other.

[0106] In the present disclosure, "or" and "and" can also be rewritten with each other. In the present disclosure, the description "associated with the physical cell ID of the activated TCI state" can also be omitted.

[0107] The ssb-PositionsInBurst may also refer to a high-layer parameter related to the transmission unit of several aggregated SSBs (which may be called an SS burst, an SS burst set, or simply a burst, etc.). The ServingCellConfigCommon may also refer to the setting information of cell-specific parameters. The DLorJoint-TCIState may also refer to the TCI state of the DL or the joint TCI state. The joint TCI state may also refer to the TCI state that is the same for both UL and DL. The followUnifiedTCIstate may also refer to following the unified TCI state. The unified TCI state may also be the TCI state related to UL and DL when the UL and DL channels are controlled by a common framework. The SSB-MTCAdditionalPCI may also refer to the measurement timing setting of the SSB from the additional PCI.

[0108] The tdd-UL-DL-ConfigurationCommon may also refer to the UL / DL setting (common setting) in cell-specific TDD. The tdd-UL-DL-ConfigurationDedicated may also refer to the dedicated UL / DL setting in TDD. The directionalCollisionHandling-r16 may also refer to the serving cell using directional collision handling between the reference and other cells for half-duplex operation with the same subcarrier spacing (SCS) in time-division multiplexed carrier aggregation (TDD CA). The half-DuplexTDD-CA-SameSCS-r16 may also refer to whether the UE supports directional collision handling between the reference cell and other cells in the half-duplex operation of TDD CA with the same SCS.

[0109] (Wireless communication method)

[0110] <First Embodiment>

[0111] In the first embodiment, in the inter-cell mobility of multiple TRPs, the SSB of the additional PCI set for L1 beam measurement / reporting is additionally considered. That is, for the inter-cell mobility in multiple TRPs, it is also possible that in a specific time domain (time slot or symbol), when the UL signal (PUCCH / PUSCH / PRACH / SRS) overlaps with the SSB corresponding to the serving cell (PCI of the serving cell), or the SSB associated with the activated additional PCI, or the SSB corresponding to the additional PCI set for layer 1 (L1-RSRP / L1-SINR) beam measurement / reporting, the UE controls so as not to transmit the UL signal in at least a part of the above specific time domain (PUCCH / PUSCH / PRACH of the time slot or SRS of the symbol) (for example, Figure 3A , Figure 3B ). In addition, the transmission destination of the UL signal can also be a base station in at least one of the serving cell, the new serving cell, and the additional cell.

[0112] [Embodiment 1.1]

[0113] The symbol of the SS / PBCH block is the symbol having the candidate SS / PBCH block index corresponding to the specific SS / PBCH block index indicated to the UE through ssb-PositionsInBurst in SIB1 and ssb-PositionsInBurst in ServingCellConfigCommon. When the UE is not provided with DLorJoint-TCIState or followUnifiedTCIstate, the specific SS / PBCH block index is indicated through ssb-PositionsInBurst of the physical cell ID with the activated TCI state or the SSB-MTCAdditionalPCI associated with the physical cell ID set for L1 beam measurement / reporting.

[0114] [Embodiment 1.2]

[0115] In the case of operation under a single carrier in an unpaired spectrum, the set of symbols of the time slot for SS / PBCH block reception is indicated to the UE by ssb-PositionsInBurst in SIB1 or ssb-PositionsInBurst in ServingCellConfigCommon. Alternatively, in the case where the UE is not provided with DLorJoint-TCIState or followUnifiedTCIstate, the set of symbols of the time slot for this SS / PBCH block reception is indicated to the UE by ssb-PositionsInBurst in SSB-MTCAdditionalPCI associated with the physical cell ID with an active TCI state or associated with the physical cell ID set for L1 beam measurement / reporting. The UE may also not transmit PUSCH, PUCCH, PRACH in this time slot and may not transmit SRS in the set of symbols of this time slot when the transmission of PUSCH, PUCCH, PRACH overlaps with any symbol of this set of symbols. The UE may also not expect that the set of symbols of this time slot is indicated as uplink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated (when they are provided to the UE).

[0116] It may also be that when the UE is configured under multiple serving cells, for one serving cell among the multiple serving cells, directionalCollisionHandling-r16 = 'enabled' is provided, and it is indicated (reported) that half-DuplexTDD-CA-SameSCS-r16 capability is supported, and when it is not configured to monitor the PDCCH to detect DCI format 2_0, the following processing 1 is performed.

[0117] 《Processing 1》

[0118] The set of symbols of the time slot for receiving the SS / PBCH block in the first cell of multiple serving cells is indicated to the UE through ssb - PositionsInBurst in SIB1 (System Information Block Type 1) or ssb - PositionsInBurst in ServingCellConfigCommon. Alternatively, in the case where DLorJoint - TCIState or followUnifiedTCIstate is not provided to the UE, the set of symbols of the time slot for receiving this SS / PBCH block is indicated to the UE through ssb - PositionsInBurst in SSB - MTCAdditionalPCI associated with the physical cell ID with an active TCI state or associated with the physical cell ID set for L1 beam measurement / reporting. In the case where the transmission of PUSCH, PUCCH, or PRACH overlaps with any symbol of this set of symbols, the UE may also not transmit PUSCH, PUCCH, or PRACH in this time slot and may not transmit SRS in the set of symbols of this time slot in a specific cell.

[0119] For the above - mentioned specific cell, when simultaneous transmission and reception indicated by simultaneousRxTxInterBandCA cannot be performed among multiple serving cells, it is any one of the multiple serving cells, regardless of the ability indicated by simultaneousRxTxInterBandCA, and is any one of the cells corresponding to the same band as the first cell.

[0120] [Embodiment 1.3]

[0121] The UE receives an SS / PBCH block having an SS / PBCH block candidate corresponding to a specific SS / PBCH block index indicated to the UE through ssb-PositionsInBurst within SIB1 or ssb-PositionsInBurst within ServingCellConfigCommon in a symbol set of a specific time slot. For a specific SS / PBCH block index, in the case where DLorJoint-TCIState or followUnifiedTCIstate is not provided to the UE, it can also be indicated through ssb-PositionsInBurst within SSB-MTCAdditionalPCI associated with the physical cell ID of the activated TCI state or associated with the physical cell ID set for L1 beam measurement / reporting. In this case, the UE may also not expect to detect DCI format 2_0 having an SFI index field value representing the symbol set of the specific time slot as uplink.

[0122] <Supplement>

[0123] [Notification of Information to UE]

[0124] Notification of any information from the network (Network (NW)) (e.g., Base Station (BS)) to the UE (in other words, reception of any information from the BS by the UE) in the above-described embodiment can also be performed using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PDCCH, PDSCH, reference signals), or a combination thereof.

[0125] In the case where the above notification is performed through MAC CE, the MAC CE can also be identified by including a new logical channel ID (Logical Channel ID (LCID)) not specified in the existing specification in the MAC sub-header.

[0126] In the case where the above notification is performed through DCI, the above notification can also be performed through a specific field of the DCI, a radio network temporary identifier (Radio Network Temporary Identifier (RNTI)) used in the scrambling of the cyclic redundancy check (Cyclic Redundancy Check (CRC)) bits assigned to the DCI, the format of the DCI, etc.

[0127] In addition, notification of any information to the UE in the above-described embodiment can also be performed periodically, semi-persistently, or aperiodically.

[0128] [Notification of Information from UE]

[0129] The notification of any information from the UE (to the NW) in the above-described embodiments (in other words, the transmission / reporting of any information from the UE to the BS) can also be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PUCCH, PUSCH, PRACH, reference signals), or a combination thereof.

[0130] In the case where the above notification is performed by MAC CE, the MAC CE can also be identified by including a new LCID not specified in the existing specifications in the MAC sub-header.

[0131] In the case where the above notification is performed by UCI, the above notification can also be transmitted using PUCCH or PUSCH.

[0132] Furthermore, the notification of any information from the UE in the above-described embodiments can also be performed periodically, semi-persistently, or aperiodically.

[0133] [Application of Each Embodiment]

[0134] At least one of the above-described embodiments can also be applied to a case that satisfies specific conditions. The specific conditions can be specified in the specifications or can be notified to the UE / BS using higher layer signaling / physical layer signaling.

[0135] At least one of the above-described embodiments can also be applied only to a UE that has reported a specific UE capability (UEcapability) or supports the specific UE capability. The specific UE capability can also indicate that, for SSB conflicts, additional consideration is given to SSBs (with additional PCI) that are set for L1 (L1-RSRP / L1-SINR) beam measurement and reporting.

[0136] The specific UE capability can also indicate support for specific processing / operations / controls / information for at least one of the above-described embodiments.

[0137] In addition, the above-mentioned specific UE capabilities can be capabilities that are applied across the entire frequency (commonly regardless of the frequency), or capabilities for each frequency (e.g., one or a combination of a cell, a band, a band combination, a BWP, a component carrier, etc.), or capabilities for each frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or capabilities for each SubCarrier Spacing (SCS), or capabilities for each Feature Set (FS) or Feature Set Per Component-carrier (FSPC).

[0138] In addition, the above-mentioned specific UE capabilities can be capabilities that are applied across all duplex modes (commonly regardless of the duplex mode), or capabilities for each duplex mode (e.g., Time Division Duplex (TDD), Frequency Division Duplex (FDD)).

[0139] In addition, at least one of the above-mentioned embodiments can also be applied to a case where the UE is set / activated / triggered by high-layer signaling / physical layer signaling with specific information associated with the above-mentioned embodiments (or an operation of implementing the above-mentioned embodiments).

[0140] The UE can also apply operations such as Rel.15 / 16 without supporting at least one of the above-mentioned specific UE capabilities or without being set with the above-mentioned specific information.

[0141] (Wireless communication system)

[0142] Hereinafter, the structure of a wireless communication system according to an embodiment of the present disclosure will be described. In this wireless communication system, any one or a combination of the wireless communication methods according to the above-mentioned embodiments of the present disclosure is used for communication.

[0143] Figure 4This is a diagram showing an example of the schematic structure of a wireless communication system according to an embodiment. The wireless communication system 1 (which may also be simply referred to as system 1) may be a system that realizes communication by using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the 5th generation mobile communication system New Radio (5G NR), and the like.

[0144] In addition, the wireless communication system 1 may also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple Radio Access Technologies (RATs). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and the like.

[0145] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the Master Node (MN), and the base station (gNB) of NR is the 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.

[0146] The wireless communication system 1 may also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity where both the MN and the SN are base stations (gNBs) of NR (NR-NR Dual Connectivity (NN-DC))).

[0147] The wireless communication system 1 may also include a base station 11 that forms a macro cell C1 with a relatively wide coverage area, and a base station 12 (12a - 12c) that is disposed within 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 within at least one cell. The configuration, quantity, etc. of each cell and the user terminal 20 are not limited to the manner shown in the figure. Hereinafter, without distinguishing between the base stations 11 and 12, they are collectively referred to as the base station 10.

[0148] The user terminal 20 may also be connected to at least one of the multiple base stations 10. The user terminal 20 may also utilize at least one of carrier aggregation (CA) and dual connectivity (DC) that uses multiple component carriers (CCs).

[0149] Each CC may also be included in at least one of a first frequency band (Frequency Range 1 (FR1)) and a second frequency band (Frequency Range 2 (FR2)). The 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 of 6 GHz or less (sub - 6 GHz), and FR2 may be a frequency band higher than 24 GHz (above - 24 GHz). Additionally, the frequency bands, definitions, etc. of FR1 and FR2 are not limited thereto. For example, FR1 may correspond to a frequency band higher than FR2.

[0150] Furthermore, the user terminal 20 may also communicate using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0151] The multiple base stations 10 may also be connected by wire (e.g., optical fiber based on the Common Public Radio Interface (CPRI), X2 interface, etc.) or wirelessly (e.g., NR communication). For example, when NR communication is used as a backhaul between the base stations 11 and 12, the base station 11, which is equivalent to the upper station, may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12, which is equivalent to a relay station (relay), may also be referred to as an IAB node.

[0152] The base station 10 can also be connected to the core network 30 via other base stations 10 or directly. For example, the core network 30 can also include at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), etc.

[0153] For example, the core network 30 can also include network functions (NFs) such as a User Plane Function (UPF), an Access and Mobility management Function (AMF), a Session Management Function (SMF), a Unified Data Management (UDM), an Application Function (AF), a Data Network (DN), a Location Management Function (LMF), and an Operation, Administration and Maintenance (Management) (OAM). Additionally, multiple functions can be provided by one network node. Furthermore, communication with an external network (e.g., the Internet) can be performed via the DN.

[0154] The user terminal 20 can also be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.

[0155] In the wireless communication system 1, a wireless access method based on Orthogonal Frequency Division Multiplexing (OFDM) can also be utilized. 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. can also be used.

[0156] The wireless access method can also be referred to as a waveform. Additionally, in the wireless communication system 1, other wireless access methods (e.g., other single-carrier transmission methods, other multi-carrier transmission methods) can also be used in the wireless access methods of the UL and the DL.

[0157] In the wireless communication system 1, as the downlink channel, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)), a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc., which are shared among the respective user terminals 20, can also be used.

[0158] Furthermore, in the wireless communication system 1, as the uplink channel, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc., which are shared among the respective user terminals 20, can also be used.

[0159] User data, high-layer control information, system information blocks (System Information Block (SIB)), etc. are transmitted through PDSCH. User data, high-layer control information, etc. can also be transmitted through PUSCH. In addition, the Master Information Block (MIB) can also be transmitted through PBCH.

[0160] Low-layer control information can also be transmitted through PDCCH. The low-layer control information can also include, for example, downlink control information (Downlink Control Information (DCI)), and the downlink control information includes scheduling information for at least one of PDSCH and PUSCH.

[0161] In addition, the DCI that schedules PDSCH can also be referred to as DL allocation, DL DCI, etc., and the DCI that schedules PUSCH can also be referred to as UL grant, UL DCI, etc. In addition, PDSCH can also be rewritten as DL data, and PUSCH can also be rewritten as UL data.

[0162] In the detection of PDCCH, the Control Resource Set (CORESET) and the search space can also be utilized. CORESET corresponds to the resource for searching DCI. The search space corresponds to the search area and search method for PDCCH candidates. One CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a certain search space based on the search space setting.

[0163] One search space can also correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces can 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", etc. in the present disclosure can also be rewritten with each other.

[0164] Through the PUCCH, it is also possible to transmit uplink control information (Uplink Control Information (UCI)) including at least one of channel state information (Channel State Information (CSI)), delivery confirmation information (e.g., which can also be referred to as Hybrid Automatic Repeat Request ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (Scheduling Request (SR)). Through the PRACH, it is also possible to transmit a random access preamble for establishing a connection with a cell.

[0165] In addition, in the present disclosure, the downlink, uplink, etc. can also be expressed without "link". Furthermore, it can also be expressed that "Physical" is not included at the beginning of various channels.

[0166] In the wireless communication system 1, it is also possible to transmit a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. In the wireless communication system 1, as the DL-RS, it is also possible to transmit 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.

[0167] The synchronization signal can, for example, also be at least one of a primary synchronization signal (Primary Synchronization Signal (PSS)) and a secondary synchronization signal (Secondary Synchronization Signal (SSS)). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) can also be referred to as an SS / PBCH block, an SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. can also be referred to as reference signals.

[0168] In addition, in the wireless communication system 1, as the uplink reference signal (UL-RS), it is also possible to transmit a reference signal for measurement (sounding reference signal (SRS)), a demodulation reference signal (DMRS), etc. In addition, the DMRS can also be referred to as a user terminal specific reference signal (UE-specific Reference Signal).

[0169] (Base station)

[0170] Figure 5 FIG. is an example showing the structure of a base station according to an embodiment. The base station 10 includes a control unit 110, a transmission / reception unit 120, a transmission / reception antenna 130, and a transmission path interface (transmission line interface) 140. In addition, one or more of the control unit 110, the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140 may be provided respectively.

[0171] In addition, in this example, the functional blocks of the characteristic parts in the present embodiment are mainly shown, and it can also be assumed that the base station 10 further has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.

[0172] The control unit 110 implements overall control of the base station 10. The control unit 110 can be constituted by a controller, a control circuit, etc. described based on the common knowledge in the technical field related to the present disclosure.

[0173] The control unit 110 may also control the generation, scheduling (e.g., resource allocation, mapping), etc. of signals. The control unit 110 may also control transmission / reception, measurement, etc. using the transmission / reception unit 120, the transmission / reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, a sequence, etc. to be transmitted as signals, and forward them to the transmission / reception unit 120. The control unit 110 may also perform call processing (setting, releasing, etc.) of communication channels, state management of the base station 10, management of radio resources, etc.

[0174] The transmission and reception unit 120 may also include a baseband unit 121, a Radio Frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may also include a transmission processing unit 1211 and a reception processing unit 1212. The transmission and reception unit 120 can be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measurement circuit, a transmission and reception circuit, etc., which are described based on the common knowledge in the technical field related to the present disclosure.

[0175] The transmission and reception unit 120 may be configured as an integrated transmission and reception unit, or may be composed of a transmission unit and a reception unit. The transmission unit may also be composed of a transmission processing unit 1211 and an RF unit 122. The reception unit may also be composed of a reception processing unit 1212, an RF unit 122, and a measurement unit 123.

[0176] The transmission and reception antenna 130 can be composed of an antenna described based on the common knowledge in the technical field related to the present disclosure, such as an array antenna.

[0177] The transmission and reception unit 120 may also transmit the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmission and reception unit 120 may also receive the above-mentioned uplink channels, uplink reference signals, etc.

[0178] The transmission and reception unit 120 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc. to form at least one of a transmission beam and a reception beam.

[0179] The transmission and reception unit 120 (transmission processing unit 1211) may also perform processing of the Packet Data Convergence Protocol (PDCP) layer, processing of the Radio Link Control (RLC) layer (e.g., RLC retransmission control), processing of the Medium Access Control (MAC) layer (e.g., HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0180] The transmission / reception unit 120 (transmission processing unit 1211) can also perform transmission processing such as channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering), Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, digital-to-analog conversion, etc. on the bit string to be transmitted, and output a baseband signal.

[0181] The transmission / reception unit 120 (RF unit 122) can also perform modulation to the radio frequency band, filter processing, amplification, etc. on the baseband signal, and transmit the radio frequency band signal via the transmission / reception antenna 130.

[0182] On the other hand, the transmission / reception unit 120 (RF unit 122) can also perform amplification, filter processing, demodulation to the baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 130.

[0183] The transmission / reception unit 120 (reception processing unit 1212) can also perform reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. on the obtained baseband signal, and obtain user data, etc.

[0184] The transmitting and receiving unit 120 (measurement unit 123) may also perform measurements related to the received signal. For example, the measurement unit 123 may also perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may also perform measurements on received power (e.g., Reference Signal Received Power (RSRP)), received quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0185] The transmission path interface 140 may also transmit and receive signals (backhaul signaling) between the device included in the core network 30 (e.g., the network node providing the NF), other base stations 10, etc., and may also acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0186] In addition, the transmitting unit and the receiving unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmitting and receiving unit 120, the transmitting and receiving antenna 130, and the transmission path interface 140.

[0187] In addition, the transmitting and receiving unit 120 may also transmit a Synchronization Signal Block (SSB).

[0188] It may also be that when the UL signal overlaps with the SSB corresponding to the additional Physical Cell ID (PCI) set for beam measurement or reporting in a specific time domain, the control unit 110 controls so as not to receive the UL signal in at least a part of the specific time domain.

[0189] (User Terminal)

[0190] Figure 6This is a diagram showing an example of the structure of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmission / reception unit 220, and a transmission / reception antenna 230. Additionally, one or more of the control unit 210, the transmission / reception unit 220, and the transmission / reception antenna 230 may be provided respectively.

[0191] Furthermore, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it can also be assumed that the user terminal 20 further has other functional blocks required for wireless communication. A part of the processing of each unit described below may also be omitted.

[0192] The control unit 210 implements the overall control of the user terminal 20. The control unit 210 can be constituted by a controller, a control circuit, etc. that can be explained based on the common knowledge in the technical field related to this disclosure.

[0193] The control unit 210 may also control the generation, mapping, etc. of signals. The control unit 210 may also control the transmission / reception, measurement, etc. using the transmission / reception unit 220 and the transmission / 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 / reception unit 220.

[0194] The transmission / reception unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transmission / reception unit 220 can be constituted by a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transmission / reception circuit, etc. that can be explained based on the common knowledge in the technical field related to this disclosure.

[0195] The transmission / reception unit 220 may be constituted as an integrated transmission / reception unit, or may be constituted by a transmission unit and a reception unit. The transmission unit may be constituted by the transmission processing unit 2211 and the RF unit 222. The reception unit may be constituted by the reception processing unit 2212, the RF unit 222, and the measurement unit 223.

[0196] The transmission / reception antenna 230 can be constituted by an antenna that can be explained based on the common knowledge in the technical field related to this disclosure, such as an array antenna.

[0197] The transmission / reception unit 220 may also receive the above-mentioned downlink channels, synchronization signals, downlink reference signals, etc. The transmission / reception unit 220 may also transmit the above-mentioned uplink channels, uplink reference signals, etc.

[0198] The transmission / reception unit 220 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc. to form at least one of a transmission beam and a reception beam.

[0199] The transmission / reception unit 220 (transmission processing unit 2211) may also perform, for example, PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 210 to generate a bit string to be transmitted.

[0200] The transmission / reception unit 220 (transmission processing unit 2211) may also perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (if necessary), IFFT processing, precoding, digital-to-analog conversion, etc. on the bit string to be transmitted and output a baseband signal.

[0201] In addition, regarding whether to apply DFT processing, it may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is effective (enabled), the transmission / reception unit 220 (transmission processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using the DFT-s-OFDM waveform. In other cases, the transmission / reception unit 220 (transmission processing unit 2211) may not perform DFT processing as the above-mentioned transmission processing.

[0202] The transmission / reception unit 220 (RF unit 222) may also perform modulation to a radio frequency band, filter processing, amplification, etc. on the baseband signal and transmit the radio frequency band signal via the transmission / reception antenna 230.

[0203] On the other hand, the transmission / reception unit 220 (RF unit 222) may also perform amplification, filter processing, demodulation to a baseband signal, etc. on the radio frequency band signal received through the transmission / reception antenna 230.

[0204] The transmission / reception unit 220 (reception processing unit 2212) may also perform reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filter processing, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, etc. on the obtained baseband signal to obtain user data, etc.

[0205] The transmitting and receiving unit 220 (measurement unit 223) may also perform measurements related to the received signal. For example, the measurement unit 223 may also perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may also measure the 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.

[0206] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be constituted by at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230.

[0207] In addition, the transmitting and receiving unit 220 may also receive a synchronization signal block (SSB).

[0208] It may also be that when the uplink (UL) signal overlaps with the SSB corresponding to an additional physical cell ID (PCI) set for beam measurement or reporting in a specific time domain, the control unit 210 controls so as not to transmit the UL signal in at least a part of the specific time domain.

[0209] The specific time domain may also be a time slot, and the UL signal may also be at least one of a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and a physical random access channel (PRACH).

[0210] The specific time domain may also be a symbol, and the UL signal may also be a sounding reference signal (SRS).

[0211] (Hardware Structure)

[0212] In addition, the block diagrams used in the description of the above embodiments show blocks of functional units. 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 may be implemented by a physically or logically combined single device, or may be implemented by directly or indirectly (e.g., by wire, wireless, etc.) connecting two or more physically or logically separated devices. The functional block may also be implemented by combining the above single device or the above multiple devices with software.

[0213] Here, in terms of functions, there are judgment, decision-making, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, solution, selection, establishment, comparison, assumption, expectation, regarded as, broadcasting, notifying, communicating, forwarding, configuration (setting), reconfiguration (re - setting), allocation (allocating, mapping), assignment, etc., but not limited to these. For example, a functional block (structural unit) that implements the transmission function can also be called a transmitting unit, a transmitter, etc. Any one of them is as described above, and its implementation method is not particularly limited.

[0214] For example, a base station, a user terminal, etc. in an embodiment of the present disclosure can also function as a computer that processes the wireless communication method of the present disclosure. Figure 7 FIG. is an example showing the hardware structure of a base station and a user terminal according to an embodiment. The above - mentioned base station 10 and user terminal 20 can physically also be configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, and a bus 1007, etc.

[0215] In addition, in the present disclosure, terms such as device, circuit, equipment, section, unit, etc. can be rewritten with each other. The hardware structure of the base station 10 and the user terminal 20 can be configured to include one or more of each device shown in the figure, or can also be configured not to include some devices.

[0216] For example, only one processor 1001 is shown, but there can also be multiple processors. In addition, the processing can be executed by one processor, or can be executed simultaneously, sequentially, or by other means by two or more processors. In addition, the processor 1001 can also be implemented by one or more chips.

[0217] Regarding each function in the base station 10 and the user terminal 20, for example, by reading a specific software (program) into hardware such as the processor 1001 and the memory 1002, the processor 1001 performs operations and controls communication via the communication device 1004, or realizes it by controlling at least one of reading and writing data in the memory 1002 and the storage 1003.

[0218] The processor 1001 enables, for example, an operating system to operate to control the entire computer. The processor 1001 may also be constituted by a central processing unit (Central Processing Unit (CPU)) including an interface with peripheral devices, a control device, an arithmetic device, registers, and the like. For example, at least a part of the above-described control unit 110 (210), transmission / reception unit 120 (220), and the like may also be implemented by the processor 1001.

[0219] In addition, the processor 1001 reads a program (program code), software module, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and performs various processes based on them. As the program, a program that causes a computer to execute at least a part of the operations described in the above-described embodiments may be used. For example, the control unit 110 (210) may also be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and the same may be applied to other functional blocks.

[0220] The memory 1002 may also be a computer-readable recording medium, and may be constituted by, for example, at least one of a read-only memory (Read Only Memory (ROM)), an erasable programmable read-only memory (Erasable Programmable ROM (EPROM)), an electrically erasable programmable read-only memory (Electrically EPROM (EEPROM)), a random access memory (Random Access Memory (RAM)), and other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), and the like. The memory 1002 can store a program (program code), software module, etc. executable for implementing the wireless communication method according to an embodiment of the present disclosure.

[0221] The storage 1003 may also be a computer-readable recording medium, and may be constituted by, for example, at least one of a flexible disc, a floppy (registered trademark) disc, an optical disc (e.g., a compact disc (Compact Disc ROM (CD-ROM))), a digital versatile disc, a Blu-ray (registered trademark) disc, a removable disc, a hard disk drive, a smart card, a flash device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, and other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0222] The communication device 1004 is hardware (a transmitting and receiving device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. In order to implement at least one of, for example, Frequency Division Duplex (FDD) and 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-described transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. may also be implemented by the communication device 1004. The transmitting and receiving unit 120 (220) may also be physically or logically separated and implemented by a transmitting unit 120a (220a) and a receiving unit 120b (220b).

[0223] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that accepts an input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, a Light Emitting Diode (LED) lamp, etc.) that performs an output to the outside. In addition, the input device 1005 and the output device 1006 may also have an integrated structure (e.g., a touch panel).

[0224] In addition, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be constituted by a single bus or may be constituted by different buses between the respective devices.

[0225] 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), a Field Programmable Gate Array (FPGA), etc., and a part or all of each functional block may also be implemented by this hardware. For example, the processor 1001 may also be implemented using at least one of these hardwares.

[0226] (Modification example)

[0227] In addition, terms described in this disclosure and terms necessary for understanding this disclosure may also be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may also be rewritten with each other. In addition, a signal may also be a message. A reference signal can also be abbreviated as RS and may also be referred to as a pilot, a pilot signal, etc. according to the applied standard. In addition, a component carrier (Component Carrier (CC)) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0228] A radio frame may also be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting the radio 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) independent of the numerology.

[0229] Here, the numerology may also be a communication parameter applied in at least one of transmission and reception of a certain signal or channel. For example, the numerology may also represent at least one of a subcarrier spacing (SubCarrier Spacing (SCS)), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (Transmission Time Interval (TTI)), the number of symbols per TTI, a radio frame structure, a specific filtering process performed by a transmitter-receiver in the frequency domain, a specific windowing process performed by a transmitter-receiver in the time domain, etc.

[0230] A time slot may also be composed of one or more symbols (orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing (OFDM)) symbols, single carrier frequency division multiple access (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 the numerology.

[0231] A time slot may also include a plurality of 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 a smaller number of 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 PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as PDSCH (PUSCH) mapping type B.

[0232] A radio frame, subframe, time slot, mini-slot, and symbol all represent time units for transmitting signals. A radio frame, subframe, time slot, mini-slot, and symbol may also use their respective other names. Additionally, time units such as frames, subframes, time slots, mini-slots, and symbols in this disclosure can also be rewritten with each other.

[0233] For example, a subframe can also be referred to as a TTI, multiple consecutive subframes can also be referred to as a TTI, a time slot or a mini-slot can also be referred to as a TTI. That is, at least one of a subframe and a TTI can be a subframe (1 ms) in existing LTE, can also be a period shorter than 1 ms (e.g., 1 - 13 symbols), or can also be a period longer than 1 ms. Additionally, the unit representing a TTI may not be referred to as a subframe, but as a time slot, mini-slot, etc.

[0234] Here, a TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) to each user terminal in units of TTI. Additionally, the definition of a TTI is not limited to this.

[0235] A TTI can also be the transmission time unit for data packets (transport blocks), code blocks, codewords, etc. that have undergone channel coding, and can also become the processing unit for scheduling, link adaptation, etc. Additionally, when a TTI is given, the time interval (e.g., the number of symbols) in which a transport block, code block, codeword, etc. is actually mapped can also be shorter than the TTI.

[0236] Additionally, when a time slot or a mini-slot is referred to as a TTI, one or more TTIs (i.e., one or more time slots or one or more mini-slots) can also become the minimum time unit for scheduling. Furthermore, the number of time slots (mini-slot numbers) that make up the minimum time unit of this scheduling can also be controlled.

[0237] A TTI with a time length of 1 ms can also be referred to as a normal TTI (TTI in 3GPP Rel.8 - 12), standard TTI, long TTI, normal subframe, standard subframe, long subframe, time slot, etc. A TTI shorter than a normal TTI can also be referred to as a shortened TTI, short TTI, partial TTI (partial or fractional TTI), shortened subframe, short subframe, mini-slot, sub-time slot, time slot, etc.

[0238] Additionally, a long TTI (e.g., a normal TTI, subframe, etc.) can also be rewritten as a TTI with a time length exceeding 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can also be rewritten as a TTI with a TTI length less than that of the long TTI and 1 ms or more.

[0239] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may also include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, it may also be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0240] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a time 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.

[0241] In addition, one or more RBs may also be referred to as a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0242] In addition, a resource block may also be composed of one or more resource elements (REs). For example, one RE may also be a radio resource area of a subcarrier and a symbol.

[0243] A bandwidth part (BWP) (which may also be referred to as a partial bandwidth, etc.) may also represent a subset of consecutive common RBs (common resource blocks) used for a certain parameter set in a certain carrier. Here, the common RBs may also be determined by the index of the RBs based on the common reference point of the carrier. A PRB may also be defined in a certain BWP and numbered additionally within that BWP.

[0244] An UL BWP (BWP for UL) and a DL BWP (BWP for DL) may also be included in a BWP. For a UE, one or more BWPs may also be set within one carrier.

[0245] At least one of the set BWPs may also be active, and the UE may not assume to transmit and receive specific signals / channels outside the active BWP. In addition, terms such as "cell" and "carrier" in the present disclosure may also be rewritten as "BWP".

[0246] In addition, structures such as the above-mentioned radio frames, sub-frames, time slots, mini time slots, and symbols are merely illustrative. For example, the number of sub-frames included in a radio frame, the number of time slots in each sub-frame or radio frame, the number of mini time slots included in a time slot, the symbols included in a time slot or mini time slot, the number of RBs, the number of sub-carriers included in an RB, and the number of symbols, symbol length, Cyclic Prefix (CP) length, etc. within a TTI can be changed in various ways.

[0247] In addition, the information, parameters, etc. described in this disclosure can be represented by absolute values, relative values with respect to a specific value, or can also be represented by corresponding other information. For example, radio resources can also be indicated by a specific index.

[0248] In this disclosure, the names used for parameters, etc. are not restrictive names in all aspects. Furthermore, mathematical expressions, etc. using these parameters can also be different from those explicitly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name. Therefore, the various names assigned to these various channels and information elements are not restrictive names in all aspects.

[0249] The information, signals, etc. described in this disclosure can also be represented using any one of various different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description can also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0250] In addition, information, signals, etc. can be output in at least one of the following directions: from a higher layer to a lower layer, and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0251] The input and output information, signals, etc. can be stored in a specific location (e.g., a memory), or can be managed using a management table. The input and output information, signals, etc. can be overwritten, updated, or appended. The output information, signals, etc. can also be deleted. The input information, signals, etc. can also be sent to other devices.

[0252] The notification of information is not limited to the manners / embodiments described in the present disclosure, and other methods may also be used. 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))), higher 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.

[0253] In addition, physical layer signaling may also be referred to as 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, and may also be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration (RRC Connection Re - setting (RRCConnection Reconfiguration)) message, etc. In addition, MAC signaling may be notified, for example, using a MAC Control Element (MACControl Element (CE)).

[0254] In addition, the notification of specific information (e.g., the notification of "is X") is not limited to explicit notification, and may also be performed implicitly (e.g., by not performing the notification of the specific information, or by the notification of other information).

[0255] The determination may be made by a value represented by one bit (0 or 1), may also be made by a true - false value (Boolean value) represented by true or false, and may also be made by a numerical comparison (e.g., comparison with a specific value).

[0256] Software, whether referred to as software, firmware, middleware, micro-code, hardware description language, or by any other name, should be broadly construed to mean instructions, instruction sets, code, code segments, program code, programs, sub-programs, software modules, applications, software applications, software packages, routines, sub-routines, objects, executable files, execution threads, procedures, functions, etc.

[0257] In addition, software, instructions, information, etc. can also be sent and received via a transmission medium. For example, in the case of sending software from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included in the definition of the transmission medium.

[0258] Terms such as "system" and "network" used in this disclosure can be used interchangeably. "Network" can also mean a device (e.g., a base station) included in the network.

[0259] In this disclosure, terms such as "precoding", "precoder", "weights (precoding weights)", "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", "panel", etc. can be used interchangeably.

[0260] In the present disclosure, terms such as "Base Station (BS)", "radio 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", "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, femto cell, pico cell, etc.

[0261] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the entire 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 (e.g., a small indoor base station (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides communication services within that coverage range.

[0262] In the present disclosure, the base station sending information to the terminal can also be rewritten as the base station instructing the terminal to perform control / operations based on that information.

[0263] In the present disclosure, terms such as "Mobile Station (MS)", "user terminal", "user device (User Equipment (UE))", "terminal" can be used interchangeably.

[0264] There are also cases where the mobile station is referred to by terms such as subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio 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.

[0265] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station can also be a device mounted in a moving object, the moving object itself, etc.

[0266] The mobile object refers to an object that can move, with an arbitrary moving speed, and of course also includes the case where the mobile object is stationary. The mobile object includes, for example, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, unmanned aerial vehicles, multicopters, quadcopters, hot air balloons, and objects mounted on them. In addition, it is not limited to these. Furthermore, the mobile object can also be a mobile object that autonomously travels based on an operation instruction.

[0267] The mobile object can be either a means of transportation (e.g., vehicles, airplanes, etc.), or a mobile object that moves in an unmanned manner (e.g., drones, autonomous vehicles, etc.), or a robot (humanoid or non-humanoid). In addition, at least one of the base station and the mobile station also includes a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station can also be an Internet of Things (IoT) device such as a sensor.

[0268] Figure 8 FIG. 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 rotational speed sensor 51, a 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.

[0269] The drive unit 41 is constituted by, for example, at least one of an engine, a motor, and a hybrid of an engine and a motor. The steering unit 42 is configured to include at least a steering wheel (also referred to as a handwheel), and steers 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.

[0270] The electronic control unit 49 is composed of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (e.g., an input / output (I / O) port) 63. Signals from various sensors 50 - 58 provided in the vehicle are input into the electronic control unit 49. The electronic control unit 49 may also be referred to as an electronic control unit (ECU).

[0271] As signals from various sensors 50 - 58, there are the following signals, etc.: a current signal from the current sensor 50 that senses the current of the motor, a rotational speed signal of the front wheel 46 / rear wheel 47 obtained by the rotational speed sensor 51, an air pressure signal of the front wheel 46 / rear wheel 47 obtained by the air pressure sensor 52, a vehicle speed signal obtained by the vehicle speed sensor 53, an acceleration signal obtained by the acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by the accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by the brake pedal sensor 56, an operation signal of the shift lever 45 obtained by the shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by the object detection sensor 58.

[0272] The information service unit 59 is composed of various devices for providing (outputting) various information such as driving information, traffic information, and entertainment information like a navigation system, an audio system, a speaker, a display, a television, and a radio, and one or more ECUs that control these devices. The information service unit 59 uses the information obtained from an external device via a communication module 60, etc., to provide various information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0273] The information service unit 59 may include an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, etc.) that accepts input from the outside, or may also include an output device (e.g., a display, a speaker, an LED light, a touch panel, etc.) that performs output to the outside.

[0274] The driving assistance system unit 64 is composed of a millimeter-wave radar, a Light Detection and Ranging (LiDAR), a camera, a positioning detector (e.g., a Global Navigation Satellite System (GNSS), etc.), map information (e.g., a High Definition (HD) map, an Autonomous Vehicle (AV) map, etc.), a gyroscope system (e.g., an inertial measurement device (Inertial Measurement Unit (IMU)), an inertial navigation device (Inertial Navigation System (INS)), etc.), an Artificial Intelligence (AI) chip, an AI processor, and various devices for providing functions to prevent accidents in advance or reduce the driver's driving burden, and one or more ECUs for controlling these devices. In addition, the driving assistance system unit 64 transmits and receives various information via the communication module 60 to implement the driving assistance function or the autonomous driving function.

[0275] The communication module 60 can communicate with the microprocessor 61 and the structural elements of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) via the communication port 63 between the driving 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 various sensors 50 - 58 provided in the vehicle 40.

[0276] The communication module 60 can be controlled by the microprocessor 61 of the electronic control unit 49 and is a communication device capable of communicating with an external device. For example, various information is transmitted and received via wireless communication between the communication module 60 and the external device. The communication module 60 can be both inside and outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, the 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 the user terminal 20 (and can also function as at least one of the base station 10 and the user terminal 20).

[0277] The communication module 60 can also transmit at least one of the signals from the various sensors 50-58 input to the electronic control unit 49, the information obtained based on the signals, and the information based on the input from the outside (user) 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. can also be referred to as an input unit that accepts input. For example, the PUSCH transmitted by the communication module 60 can also include the information based on the above input.

[0278] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 59 provided in the vehicle. The information service unit 59 can also be referred to as an output unit that outputs information (for example, outputs information to devices such as a display and a speaker based on the PDSCH received by the communication module 60 (or the data / information decoded from the PDSCH)).

[0279] In addition, the communication module 60 stores various information received from an external device in a memory 62 that can be utilized by the microprocessor 61. Based on the information stored in the memory 62, 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. provided in the vehicle 40.

[0280] In addition, the base station in the present disclosure can also be rewritten as a user terminal. For example, for a structure in which the communication between the base station and the user terminal is replaced by the communication between multiple user terminals (for example, it can also be referred to as Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.), the various aspects / embodiments of the present disclosure can also be applied. In this case, it can also be configured such that the user terminal 20 has the functions of the above-mentioned base station 10. In addition, terms such as "uplink" and "downlink" can also be rewritten as terms corresponding to inter-terminal communication (for example, "sidelink"). For example, the uplink channel, the downlink channel, etc. can also be rewritten as the sidelink channel.

[0281] Similarly, the user terminal in the present disclosure can also be rewritten as a base station. In this case, it can also be configured such that the base station 10 has the functions of the above-mentioned user terminal 20.

[0282] In the present disclosure, an action performed by a base station may sometimes be performed by its upper node according to circumstances. In a network including one or more network nodes having a base station, various operations for communicating with a terminal can obviously be performed by the base station, one or more network nodes other than the base station (for example, considering a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0283] Each mode / embodiment described in the present disclosure can be used alone, in combination, or switched during execution. In addition, the processing procedures, timings, flowcharts, etc. of each mode / embodiment described in the present disclosure can be rearranged as long as they are not contradictory. For example, for the methods described in the present disclosure, elements of various steps are presented in an exemplary order, but are not limited to the specific order presented.

[0284] Each mode / embodiment described in the present disclosure can also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, the fourth generation mobile communication system (4G), the fifth generation mobile communication system (5G), the sixth generation mobile communication system (6G), the xth generation mobile communication system (xG (x is an integer or a decimal, for example)), 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, next-generation systems extended, modified, generated, or defined based on them, etc. In addition, multiple systems can also be combined (for example, a combination of LTE or LTE-A and 5G) and applied.

[0285] The description "based on" used in the present disclosure, unless otherwise specified, does not mean "only based on". In other words, the description "based on" means both "only based on" and "at least based on".

[0286] Any reference to an element using terms such as "first", "second", etc. used in this disclosure does not comprehensively define the quantity or order of these elements. These terms can be used in this disclosure as a convenient way to distinguish between more than two elements. Therefore, the reference to the first and second elements does not mean that only two elements can be adopted, or that the first element must be prior to the second element in a certain form.

[0287] The term "determining" used in this disclosure may involve various operations in some cases. For example, "determining" may also be a case where judging, calculating, computing, processing, deriving, investigating, looking up (searching, inquiring) (such as searching in a table, database, or other data structures), ascertaining, etc. are regarded as performing "determining".

[0288] In addition, "determining" may also be a case where receiving (for example, receiving information), transmitting (for example, transmitting information), input, output, accessing (for example, accessing data in a memory), etc. are regarded as performing "determining".

[0289] In addition, "determining" may also be a case where resolving, selecting, choosing, establishing, comparing, etc. are regarded as performing "determining". That is, "determining" may also be a case where some operations are regarded as performing "determining".

[0290] In addition, "determining" may also be rewritten as "assuming", "expecting", "considering", etc.

[0291] The "maximum transmit power" described in this disclosure may either refer to the maximum value of the transmit power, or the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0292] As used in this disclosure, terms such as "connected" and "coupled", or all of their variations, mean all direct or indirect connections or couplings between two or more elements, and can include the situation where there is one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements can be physical, logical, or a combination of them. For example, "connected" can also be rewritten as "access".

[0293] In this disclosure, when two elements are connected, it is possible to consider being "connected" or "coupled" to each other using one or more wires, cables, printed electrical connections, etc., and as several non-limiting and non-inclusive examples, using electromagnetic energy having wavelengths in the wireless frequency domain, microwave region, optical (both visible and invisible) region, etc. to be "connected" or "coupled" to each other.

[0294] In this disclosure, a term such as "A is different from B" can also mean the meaning of "A and B are different from each other". Additionally, this term can also mean the meaning of "A and B are respectively different from C". Terms such as "separated" and "coupled" can also be interpreted in the same way as "different".

[0295] When using "include", "including", and their variations in this disclosure, these terms, like the term "comprising", are meant in an inclusive sense. Further, the term "or" used in this disclosure does not mean the exclusive or meaning.

[0296] In this disclosure, for example, in the case where articles are added through translation such as a, an, and the in English, this disclosure can also include the case where the nouns following these articles are in the plural form.

[0297] In this disclosure, "below", "less than", "above", "more", "equal to", etc. can also be rewritten with each other. In addition, in this disclosure, words meaning "good", "bad", "big", "small", "high", "low", "early", "slow", "wide", "narrow", etc. are not limited to the positive degree, comparative degree, and superlative degree, and can also be rewritten with each other. In addition, in this disclosure, words meaning "good", "bad", "big", "small", "high", "low", "early", "slow", "wide", "narrow", etc. as expressions with "the i-th" (i is an arbitrary integer) added are not limited to the positive degree, comparative degree, and superlative degree, and can also be rewritten with each other (for example, "the highest" can also be rewritten with "the i-th highest").

[0298] In the present disclosure, terms such as "of", "for", "regarding", "related to", "associated with", etc. may also be rewritten with each other.

[0299] As described above, the invention related to the present disclosure has been described in detail. However, for those skilled in the art, the invention related to the present disclosure is obviously not limited to the embodiments described in the present disclosure. The invention related to the present disclosure can be implemented in the form of amendments and changes 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 illustrative purposes and does not carry any restrictive meaning for the invention related to the present disclosure.

[0300] This application is based on Japanese Patent Application No. 2022-132433 filed on August 23, 2022. The entire content thereof is incorporated herein.

Claims

1. A terminal, comprising: a receiving unit that receives a Synchronization Signal Block (SSB); and a control unit that, when an uplink signal, i.e., a UL signal, overlaps with the SSB corresponding to an additional Physical Cell Identifier (PCI) that is set for beam measurement or reporting in a specific time domain, controls so as not to transmit the UL signal in at least a part of the specific time domain.

2. The terminal according to claim 1, wherein the specific time domain is a time slot, and the UL signal is at least one of a Physical Uplink Control Channel (PUCCH), a Physical Uplink Shared Channel (PUSCH), and a Physical Random Access Channel (PRACH).

3. The terminal according to claim 1, wherein the specific time domain is a symbol, and the UL signal is a Sounding Reference Signal (SRS).

4. A wireless communication method, which is a wireless communication method of a terminal, comprising: a step of receiving a Synchronization Signal Block (SSB); and a step of controlling so as not to transmit the UL signal in at least a part of the specific time domain when an uplink signal, i.e., a UL signal, overlaps with the SSB corresponding to an additional Physical Cell Identifier (PCI) that is set for beam measurement or reporting in a specific time domain.

5. A base station, comprising: a transmitting unit that transmits a Synchronization Signal Block (SSB); and a control unit that, when an uplink signal, i.e., a UL signal, overlaps with the SSB corresponding to an additional Physical Cell Identifier (PCI) that is set for beam measurement or reporting in a specific time domain, controls so as not to receive the UL signal in at least a part of the specific time domain.

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