Terminal, wireless communication method, and base station

Abstract

A terminal according to an aspect of the present disclosure comprises: a reception unit that receives information related to at least one of association between a plurality of sounding reference signal (SRS) resources and association between a plurality of SRS resource sets; and a control unit that determines, on the basis of said at least one of the association between the plurality of SRS resources and the association between the plurality of SRS resource sets, a plurality of SRS resources to which the same transmission beam, the same spatial domain filter, or the same transmission configuration index (TCI) state is applied.

Description

Terminal, wireless communication method and base station

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

[0002] Long Term Evolution (LTE) has been specified for the Universal Mobile Telecommunications System (UMTS) network with the aim of achieving higher data rates and lower latency (Non-Patent Document 1). Also, LTE-Advanced (3GPP Rel. 10-14) has been specified with the aim of achieving higher capacity and more advanced features than LTE (Third Generation Partnership Project (3GPP (registered trademark)) Release (Rel.) 8, 9).

[0003] Successor systems to LTE (e.g., 5th generation mobile communication system (5G), 5G+ (plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel. 15 or later, etc.) are also being considered.

[0004] 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

[0005] Future wireless communication systems will support scenarios in which a terminal (user terminal, User Equipment (UE)) transmits and receives data to multiple Transmission / Reception Points (TRPs).

[0006] In the case of using multiple TRPs, dense UL deployment is being considered to improve UL transmission performance and minimize cost / interference. As an example, a configuration is envisioned in which TRPs (e.g., UL receiver points) that receive UL transmissions from UEs are densely deployed, and TRPs (e.g., DL transmission points) that transmit DL signals to UEs and TRPs that receive UL signals from UEs are separately provided.

[0007] However, how to perform communication control (e.g., beam management, etc.) in such a case has not been fully studied. For example, how to perform beam management / UL reception beam (UL Rx beam) determination in a TRP (or base station) that receives an UL signal transmitted from a UE becomes an issue.

[0008] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can appropriately control beam management for UL transmission.

[0009] A terminal according to one aspect of the present disclosure includes a receiving unit that receives information regarding at least one of an association between a plurality of Sounding Reference Signal (SRS) resources and an association between a plurality of SRS resource sets, and a control unit that determines, based on at least one of the association between the SRS resources and the association between the SRS resource sets, a plurality of SRS resources to which the same transmit beam, the same spatial domain filter, or the same transmit configuration indicator (TCI) state is to be applied.

[0010] According to one aspect of the present disclosure, beam management for UL transmission can be appropriately controlled.

[0011] FIG. 1 shows an example of an SRS resource set configuration information element. FIG. 2 shows an example of an SRS resource configuration information element. FIG. 3A is a diagram showing an example of an arrangement of general transmission and reception points. FIG. 3B is a diagram showing an example of a high-density UL arrangement. FIG. 4 is a diagram explaining issues related to determining a reception beam (Rx beam) of a base station. FIG. 5 is a diagram showing an example of links / associations between SRS resources / SRS resource sets according to the first embodiment. FIG. 6 is a diagram showing another example of links / associations between SRS resources / SRS resource sets according to the first embodiment. FIG. 7 is a diagram showing another example of links / associations between SRS resources / SRS resource sets according to the first embodiment. FIG. 8 is a diagram showing an example of links / associations between SRS resources according to the second embodiment. FIGS. 9A and 9B are diagrams showing another example of links / associations between SRS resources according to the second embodiment. FIGS. 10A and 10B are diagrams showing another example of links / associations between SRS resources according to the second embodiment. FIG. 11 is a diagram showing another example of links / associations between SRS resources / SRS resource sets. FIG. 12 is a diagram showing an example of SRS resources to which repetition according to the third embodiment is applied. FIGS. 13A and 13B are diagrams showing another example of SRS resources to which repetition according to the third embodiment is applied. FIG. 14 is a diagram showing an example of frequency hopping of SRS resources according to the third embodiment. FIG. 15 is a diagram showing an example of frequency hopping of SRS resources to which repetition according to the third embodiment is applied. FIG. 16 is a diagram showing an example of a transmission beam applied to SRS resources according to the third embodiment. FIG. 17 is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment. FIG. 18 is a diagram showing an example of a configuration of a base station according to an embodiment. FIG. 19 is a diagram showing an example of a configuration of a user terminal according to an embodiment. FIG. 20 is a diagram showing an example of hardware configurations of a base station and a user terminal according to an embodiment. FIG. 21 is a diagram showing an example of a vehicle according to an embodiment.

[0012] (SRS) In NR, the use of the sounding reference signal (SRS) is diverse. NR's SRS is not only used for CSI measurement of the uplink (UL) used in the existing LTE (LTE Rel. 8-14), but also for CSI measurement of the downlink (DL), beam management, etc. It is also used.

[0013] A UE may be configured with one or more SRS resources, which may be identified by an SRS Resource Index (SRI).

[0014] Each SRS resource may have (correspond to) one or more SRS ports, for example, the number of ports per SRS may be 1, 2, 4, etc.

[0015] A UE may be configured with one or more SRS resource sets. One SRS resource set may be associated with a predetermined number of SRS resources. The UE may share higher layer parameters for the SRS resources included in one SRS resource set. Note that the term "resource set" in the present disclosure may be interpreted as a set, a resource group, a group, or the like.

[0016] Information regarding the SRS resource or resource set may be configured in the UE using higher layer signaling, physical layer signaling, or a combination thereof.

[0017] The SRS configuration information element (for example, the RRC information element "SRS-Config") may include an SRS resource set configuration information element (FIG. 1), an SRS resource configuration information element (FIG. 2), and the like.

[0018] The SRS resource set configuration information element (e.g., the RRC parameter "SRS-ResourceSet") may include an SRS resource set ID (Identifier) ​​(SRS-ResourceSetId), a list of SRS resource IDs (SRS-ResourceId) used in the resource set, an SRS resource type (resourceType), and information on SRS usage.

[0019] Here, the SRS resource type may indicate the time domain behavior of the SRS resource configuration, and may indicate any of periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), and aperiodic SRS (A(AP)-SRS). Note that the UE may transmit P-SRS and SP-SRS periodically (or periodically after activation). The UE may transmit A-SRS based on an SRS request in the DCI.

[0020] Furthermore, the use of the SRS ("usage" of the RRC parameter, "SRS-SetUse" of the L1 (Layer-1) parameter) may be, for example, beam management, codebook (CB), non-codebook (NCB), antenna switching, etc. For example, the SRS for codebook or non-codebook use may be used to determine a precoder for codebook-based or non-codebook-based uplink shared channel (Physical Uplink Shared Channel (PUSCH)) transmission based on the SRI.

[0021] The beam management SRS may be assumed to be transmitted at a given time instant only once for each SRS resource set, and multiple SRS resources in the same Bandwidth Part (BWP) that have the same time domain behavior may be transmitted simultaneously if they belong to different SRS resource sets.

[0022] The SRS resource configuration information element (e.g., the RRC parameter "SRS-Resource") may include an SRS resource ID (SRS-ResourceId), the number of SRS ports, the SRS port number, the number of transmission combs, SRS resource mapping (e.g., time and / or frequency resource position, resource offset, resource period, number of repetitions, number of SRS symbols, SRS bandwidth, etc.), hopping-related information, an SRS resource type, a sequence ID, spatial relationship information, etc.

[0023] The value of the transmission comb number (transmissionComb) is {2,4}. The number of SRS ports (nrofSRS-Ports) N ap SRS The value of is {1,2,4}. Antenna port number p i The value of is {1000, 1001, ...}. The number of consecutive OFDM symbols for SRS (nrofSymbols) N symb SRS The value of is {1,2,4}. The offset in symbols, l, counting backward in the time domain from the end of the slot to the start position in the time domain (startPosition). offset is {0,1,...5} and the starting position is l0=N symb slot -1-l offset is given by

[0024] The setting of the number of combs to be transmitted may include a comb offset and a cyclic shift (CS index, CS number).

[0025] comb offset (subcarrier offset) = {0,1,...K TC −1} and CS may be multiplexed using the same number of transmission combs, the same RB, and the same symbol.

[0026] The UE may switch the Bandwidth Part (BWP) for transmitting the SRS for each slot, or may switch the antenna, and may apply at least one of intra-slot hopping and inter-slot hopping to the SRS transmission.

[0027] In the existing SRS, p i Frequency domain starting position k0 for (p_i) p_i is given by the following formula: k0 p_i =k - 0 p_i +Σ b=0 BSRS K TC M SC,b SRS n b

[0028] where k - denotes the variable k with an overline, and may also be called k-bar. - 0 p_i is comb offset K - TC It may be based on K TC is the number of combs sent. M SC,b SRS is the SRS bandwidth m SRS,b n is the number of subcarriers used for SRS transmission within [RB]. b is a constant.

[0029] (UL Dense Deployment (UL-Only TRP)) In order to simultaneously achieve improved UL performance and minimize cost / interference, UL dense deployment, which places UL receiving points, is being considered.

[0030] 3A is a diagram showing an example of a typical arrangement of transmission and reception points. In FIG. 3A, a UE receives a DL signal from a transmission and reception point (TRP) and transmits a UL signal to the TRP. For example, if the UE and the TRP are far apart, the path loss may be large, resulting in a deterioration in communication quality.

[0031] Figure 3B is a diagram showing an example of a high-density UL deployment. In addition to the TRP (DL transmission point) shown in Figure 3A, a UL reception point is provided as shown in Figure 3B. In Figure 3B, a UE receives a DL signal from a DL transmission point (TRP / Central TRP / DL TRP) corresponding to a first cell (e.g., a macro cell) and transmits a UL signal to a UL reception point (e.g., a reception point with a smaller path loss / received power). However, the UE can also perform UL transmission to the DL transmission point.

[0032] The UL reception point may be configured without a DL transmission unit (e.g., a power amplifier), which can reduce costs. Furthermore, eliminating the need for DL ​​transmission from the UL reception point facilitates the management of the placement of UL reception points. The UE can receive DL signals from the DL transmission point, but for UL, in order to receive UL signals from the UE, it is possible to select a UL reception point with a smaller path loss / a UL reception point with greater received power from the UE.

[0033] Thus, in Rel. 19 and later, it is expected to support scenarios in which the DL TRP and the UL TRP are asymmetric (e.g., asymmetric DL single TRP / UL multi-TRP (asymmetric DL sTRP / UL mTRP)). The asymmetric DL single TRP / UL multi-TRP scenario may also be called the UL dense TRP (UL dense TRP) / UL only TRP scenario.

[0034] In asymmetric DL single-TRP / UL multi-TRP scenarios, intra-band intra-cell non-co-located mTRP scenarios may be envisaged without modifying existing cell definitions / defining new cells (e.g., UL-only cells), in which case a unified TCI framework for multi-TRP targeting a given frequency range (e.g., FR1 / FR2) may be envisaged.

[0035] (Analysis) In asymmetric DL single TRP / UL multi-TRP deployment scenarios, cases are assumed in which no DL reference signal is transmitted from the UL TRP.

[0036] As a beam management in the UL TRP, a base station may measure a reference signal (e.g., beam management SRS) transmitted from a UE. The base station may determine an appropriate / optimal UL transmission beam (UL Tx beam) from the UE by measuring the reference signal (e.g., beam management SRS) from the UE.

[0037] On the other hand, it is also important for the base station to determine the appropriate / optimal UL receiving beam (UL Rx beam). However, in existing systems (e.g., Rel. 18 and earlier), how the base station determines the appropriate / optimal UL Rx beam has not been fully considered. For example, Rel. 15 supports the UE transmitting multiple SRSs (or SRS resources) and the base station indicating a specific spatial relationship (e.g., SRS resources) based on measurements of the transmitted SRSs (see Figure 4). However, it is not clear which Rx beam the base station should use to measure the SRS resources.

[0038] If the UL Rx beam is not determined / selected properly, degradation of communication quality may occur.

[0039] Therefore, the inventors have studied beam management in the UL (for example, transmission control of SRS resources for selecting / determining an UL Rx beam) and have come up with an idea for one aspect of this embodiment.

[0040] Hereinafter, embodiments according to the present disclosure will be described in detail with reference to the drawings. Wireless communication methods according to the embodiments may be applied independently or in combination.

[0041] This embodiment is not limited to an asymmetric DL single TRP / UL multi-TRP scenario (or an UL high-density scenario / UL-only TRP scenario). This embodiment may be applied to a case where UL beam sweeping is required for beam management. For example, this embodiment may be applied to SRS-based beam management in a TRP that transmits a DL signal (e.g., a TRP (base station) that supports both DL Tx and UL Rx).

[0042] Furthermore, the present embodiment may be applied only to an SRS for which a specific purpose is set, or may be applied to an SRS for all purposes regardless of the purpose. The specific purpose may be, for example, beam management.

[0043] (Interpretation, etc.) In the present disclosure, "A / B" and "at least one of A and B" may be interchangeable. Also, in the present disclosure, "A / B / C" may mean "at least one of A, B, and C."

[0044] In the present disclosure, terms such as notify, activate, deactivate, indicate (or indicate), select, configure, update, and determine may be read interchangeably. In the present disclosure, terms such as support, control, controllable, operate, and operate may be read interchangeably.

[0045] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher layer parameters, fields, information elements (IEs), settings, etc. may be interchangeable. In the present disclosure, Medium Access Control (MAC) control elements (CEs), update commands, activation / deactivation commands, etc. may be interchangeable.

[0046] In the present disclosure, the higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, other messages (e.g., messages from the core network such as positioning protocol (e.g., NR Positioning Protocol A (NRPPa) / LTE Positioning Protocol (LPP)) messages), or a combination thereof.

[0047] In the present disclosure, MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. Broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0048] In the present disclosure, physical layer signaling may be, for example, Downlink Control Information (DCI), Uplink Control Information (UCI), and the like.

[0049] In the present disclosure, the terms index, identifier (ID), indicator, resource ID, etc. may be interchangeable. In the present disclosure, the terms sequence, list, set, group, cluster, subset, etc. may be interchangeable.

[0050] In the present disclosure, the terms panel, UE panel, panel group, beam, beam group, precoder, Uplink (UL) transmitting entity, Transmission / Reception Point (TRP), base station, Spatial Relation Information (SRI), spatial relation, SRS Resource Indicator (SRI), Control Resource Set (CORESET), Physical Downlink Shared Channel (PDSCH), Codeword (CW), Transport Block (TB), Reference Signal (RS), antenna port (e.g., Demodulation Reference Signal (DMRS) port), antenna port group (e.g., DMRS port group), group (e.g., spatial relation group, Code Division Multiplexing (CDM) group, reference signal group, CORESET group, Physical Uplink Control Channel (PUCCH) group, PUCCH resource group), resource (e.g., reference signal resource, SRS resource), resource set (e.g., reference signal resource set), CORESET pool, downlink Transmission Configuration Indication state (TCI state) (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, Quasi-Co-Location (QCL), QCL assumption, etc. may be read as interchangeable.

[0051] In the present disclosure, the terms single TRP, channel / signal using single TRP, channel using one TCI state / spatial relationship, multi-TRP not enabled by RRC / DCI, multiple TCI states / spatial relationships not enabled by RRC / DCI, a CORESETPoolIndex value of 1 not set for any CORESET, and no code point in the TCI field mapped to two TCI states may be read interchangeably.

[0052] In the present disclosure, multi-TRP, channel / signal using multi-TRP, channel using multiple TCI states / spatial relationships, multi-TRP enabled by RRC / DCI, multiple TCI states / spatial relationships enabled by RRC / DCI, and at least one of multi-TRP based on a single DCI and multi-TRP based on multiple DCI may be read interchangeably.

[0053] In the present disclosure, the terms TRP, base station, gNB, and network (NW) may be interchangeable. In the present disclosure, the terms TRP, RS group, antenna port group, and control resource set (CORESET) group may be interchangeable.

[0054] The UL reception point may be connected to a TRP (e.g., a base station) or a core network via wired or wireless. The UL reception point may be treated as a network (NW) or a base station. The UL reception point may be capable of transmitting downlink (DL) signals and may be applied to base stations forming a macrocell. For example, the UL reception point may not transmit downlink data but may transmit control signals / channels.

[0055] In the present disclosure, UL high density deployment, distributed TRP mode, separated location mode of transmitting / receiving points, distributed transmitting / receiving mode, separated TRP mode, TRP type 1, TRP type 2, TRP type A, and TRP type B may be read interchangeably.

[0056] In the present disclosure, the terms TRP, base station, UL receiving point, UL TRP, UL only TRP, and micro BS may be interchangeable. An UL receiving point may perform only UL reception, or may perform DL transmission if certain conditions are met.

[0057] In the present disclosure, the terms TRP, base station, DL transmission point, DL TRP, DL only TRP, macro BS, and central TRP may be interchangeable. A DL transmission point may only perform DL transmission, or may perform UL reception if certain conditions are met.

[0058] In the present disclosure, the SRS may be at least one of aperiodic (A)-SRS, periodic (P)-SRS, and semi-persistent (SP)-SRS.

[0059] In the present disclosure, the terms cell and cell ID may be interchangeable. In the present disclosure, the terms TRP and TRP ID may be interchangeable.

[0060] Each embodiment of the present disclosure may be premised on either Scenario 1 (UL high density deployment) or Scenario 2 (HetNet) above.

[0061] The number of TRPs in each embodiment of the present disclosure may be two or more (e.g., two or four). The number of TRPs may increase the number of fields or bits in the fields in the DCI related to the indication per TRP. The TRP of the present disclosure may be a TRP for UL (SRS) transmission.

[0062] (Wireless Communication Method) <First Embodiment> In the first embodiment, a case will be described in which a UE transmits different SRS resources using the same beam (or spatial domain filter / TCI state) in different SRS resource sets. In this case, the base station may perform receive beam sweeping (Rx beam sweeping) on ​​the different SRS resources (e.g., multiple SRS resources to which the same UE transmit beam is applied).

[0063] A network (e.g., a base station / TRP) may configure information about SRS resource sets / SRS resources to a UE using RRC / MAC CE. For example, one or more SRS resource sets and SRS resources associated with each SRS resource set may be configured to a UE.

[0064] FIG. 5 illustrates a case where a first SRS resource set #1 and a second SRS resource set #2 are configured in a UE, the first SRS resource set includes SRS resources #1 to #4, and the second SRS resource set includes SRS resources #5 to #8.

[0065] The UE transmits different SRS resources using the same beam in the first SRS resource set #1 and the second SRS resource set #2. Here, the UE applies the same transmission beam (Tx beam) to the SRS resource #1 included in the first SRS resource set #1 and the SRS resource #5 included in the second SRS resource set #2.

[0066] The base station may perform measurements (e.g., receive beam sweeping) across SRS resources to which the same UE transmit beam is applied (here, SRS resource #1 and SRS resource #5). For example, the base station may use different receive beams to receive / measure SRS resources to which the same UE transmit beam is applied (here, SRS resource #1 and SRS resource #5). This allows the base station to determine which receive beam (Rx beam) is appropriate for a certain transmit beam (Tx beam).

[0067] A link / association may be defined / established between SRS resources included in different SRS resource sets (or between SRS resource sets). For example, two or more SRS resources in two or more SRS resource sets may be linked by an explicit / implicit method. The UE controls the transmission of the two or more linked SRS resources using the same beam.

[0068] Information regarding linkage (or association) between two or more SRS resources / between SRS resources may be provided / configured to the UE. At least one of Option 1-1 and Option 1-2 below may be applied as the linkage / association between the SRS resources / between SRS resources.

[0069] [Option 1-1] Multiple (e.g., two or more) SRS resource sets may be linked (or associated). The base station may configure / instruct the UE to use RRC / MAC CE / DCI to provide information regarding the link / association between the SRS resource sets.

[0070] The SRS resources included in each linked SRS resource set may be linked. For example, assume that a first SRS resource set #x and a second SRS resource set #y are linked. In this case, the N SRS resources included in the first SRS resource set #x may be linked to the N SRS resources included in the first SRS resource set #x.

[0071] N may be 1 or more than 2. The value of N may be configured / instructed to the UE by the base station by RRC / MAC CE / DCI, may be defined in a specification, or may be determined based on UE capabilities.

[0072] For example, the first SRS resource / second SRS resource... included in the first SRS resource set #x and the first SRS resource / second SRS resource... included in the second SRS resource set #x may be linked (see Fig. 6 ). The first SRS resource may correspond to the SRS resource with the smallest (or largest) index among the SRS resources included in the SRS resource set, and the second SRS resource may correspond to the SRS resource with the second smallest (or largest) index among the SRS resources included in the SRS resource set.

[0073] 6 illustrates an example in which SRS resources #1 to #4 included in a first SRS resource set #1 and SRS resources #5 to #8 included in a second SRS resource set #2 are linked to each other. The UE may control the SRS resources (e.g., SRI resources #1 and #5) included in different SRS resource sets to use the same transmission beam.

[0074] As a link between SRS resource sets, at least one of the following options 1-1A to 1-1C may be applied.

[0075] <<Option 1-1A>> For each SRS resource set, one or more SRS resource sets may be configured as linked SRS resource sets. The base station may configure / instruct the UE to configure / instruct one or more SRS resource sets as linked SRS resource sets for a certain SRS resource set using RRC / MAC CE / DCI.

[0076] <<Option 1-1B>> A new link-related parameter (e.g., link-id) may be provided / configured for each SRS resource set. For example, the base station may provide / configure a link-related parameter (e.g., link-id) for each SRS resource set using RRC / MAC CE / DCI. Multiple SRS resource sets provided / configured with the same link ID may be linked to each other.

[0077] <<Option 1-1C>> As a default, the first X SRS resource sets may be linked, and the second X SRS resource sets may also be linked. The first X SRS resource sets may refer to the X SRS resource sets with the smallest (or largest) indexes among multiple SRS resource sets. The value of X may be defined in the specifications, configured / instructed to the UE by the base station via RRC / MAC CE / DCI, or determined based on UE capabilities. As an example, X may be 2 or 3, or may be 4 or greater.

[0078] The link of the SRS resources included in each of the linked SRS resource sets may be configured / instructed by the base station to the UE by RRC / MAC CE / DCI. In this case, the base station may configure / instruct the UE to associate both the SRS resource sets and the SRS resources.

[0079] [Option 1-2] Multiple (e.g., two or more) SRS resources may be linked (or associated). The base station may configure / instruct the UE to use RRC / MAC CE / DCI to provide information regarding the link / association between the SRS resources.

[0080] For example, the base station configures / instructs the UE to associate SRS resources included in different SRS resource sets (see Fig. 7 ). Fig. 7 illustrates a case where information regarding a link between SRS resources #1 to #4 included in a first SRS resource set #1 and SRS resources #5 to #8 included in a second SRS resource set #2 is configured / instructed.

[0081] In this case, no link (or association) between the SRS resource sets may be established.

[0082] As a link between SRS resources, at least one of the following options 1-2A to 1-2B may be applied.

[0083] <<Option 1-2A>> For each SRS resource, one or more SRS resources may be configured as linked SRS resources. The base station may configure / instruct the UE to configure / instruct one or more SRS resources as linked SRS resources for a certain SRS resource using RRC / MAC CE / DCI.

[0084] <<Option 1-2B>> A new link-related parameter (e.g., link-id) may be provided for each SRS resource. For example, the base station may provide a link-related parameter (e.g., link-id) for each SRS resource using RRC / MAC CE / DCI. Multiple SRS resources provided with the same link ID may be linked to each other.

[0085] In Option 1-1 / Option 1-2, certain restrictions / conditions may be applied to links between SRS resources / links between SRS resource sets.

[0086] A maximum of N SRS resources / SRS resource sets may be linked to each other. In other words, the number of linked SRS resources / SRS resource sets may be less than or equal to N. A UE may be configured to transmit on the same beam for a maximum of N SRS resources. N may be determined based on predetermined parameters (e.g., UE capability, frequency range, etc.).

[0087] The number of SRS resources included in each linked SRS resource set may be configured to be the same. The UE may expect / assume that multiple linked SRS resource sets (e.g., SRS resource sets provided with a link (or the same link ID)) are configured with the same number of SRS resources.

[0088] The same time domain behavior may be configured for linked SRS resource sets / SRS resources. The UE may expect / assume that multiple linked SRS resource sets / SRS resources (e.g., SRS resource sets / SRS resources provided with a link (or the same link ID)) are configured with the same time domain behavior. The time domain behavior indicates the transmission behavior of the SRS in the time domain, and may be at least one of periodic, semi-persistent, and aperiodic.

[0089] The same periodicity may be configured for linked SRS resource sets / SRS resources. The UE may expect / assume that multiple linked SRS resource sets / SRS resources (e.g., SRS resource sets / SRS resources provided with a link (or the same link ID)) are configured with the same periodicity.

[0090] The same number of ports may be configured for linked SRS resources. The UE may expect / assume that multiple linked SRS resources (e.g., SRS resources provided with a link (or the same link ID)) are configured with the same number of ports.

[0091] The same number of OFDM symbols / transmission comb value / SRS bandwidth may be configured for linked SRS resources. The UE may expect / assume that multiple linked SRS resources (e.g., SRS resources provided by a link (or the same link ID)) are configured with the same number of OFDM symbols / transmission comb value / SRS bandwidth.

[0092] Second Embodiment In a second embodiment, a case will be described in which a UE transmits different SRS resources in the same SRS resource set using the same beam (or spatial domain filter / TCI state). In this case, the base station may perform receive beam sweeping (Rx beam sweeping) on ​​different SRS resources in the same SRS resource set (e.g., multiple SRS resources to which the same UE transmit beam is applied).

[0093] 8 shows a case where the same transmit beam (Tx beam) is applied to multiple SRS resources (here, SRS resources #1 to #4) in the same SRS resource set (here, SRS resource set #1). The base station applies different receive beams to SRS resources #1 to #4, respectively, to perform reception / measurement operations (e.g., receive beam sweeping).

[0094] Information regarding a transmission beam to be applied to SRS resources included in a certain SRS resource set (e.g., whether the same transmission beam is applied) may be configured / instructed to the UE from the base station. For example, at least one of the following options 2-1 to 2-3 may be applied.

[0095] [Option 2-1] Predetermined parameters (or predetermined information) regarding transmission beams to be applied to SRS resources may be provided from the base station to the UE. For example, the predetermined parameters may be provided to an SRS resource set by RRC / MAC CE / DCI. When the predetermined parameters are provided / configured for an SRS resource set, the same transmission beam may be applied to at least some of the SRS resources included in the SRS resource set.

[0096] <<Option 2-1A>> When a predetermined parameter is provided / configured for a certain SRS resource set, it may mean that the same beam (e.g., Tx beam) is applied to all SRS resources included in the SRS resource set. For example, when a predetermined parameter is provided / configured for a certain SRS resource set, the UE may control all SRS resources included in the SRS resource set to transmit using the same beam (see FIG. 9A).

[0097] 9A illustrates a case where predetermined parameters are provided / configured for SRS resource set #1, in which the UE controls SRS resources #1 to #4 included in SRS resource set #1 to transmit using the same beam.

[0098] <<Option 2-1B>> When a predetermined parameter is provided / configured for a certain SRS resource set, it may mean that the same beam (e.g., Tx beam) is applied to at least some of the SRS resources included in the SRS resource set. For example, when a predetermined parameter is provided / configured for a certain SRS resource set, the UE may control the SRS resource set to apply the same beam to some of the SRS resources included in the SRS resource set and the same other beam to other SRS resources (see FIG. 9B ).

[0099] 9B illustrates a case where predetermined parameters are provided / configured for SRS resource set #1. In this case, the UE controls transmission so that the same beam (e.g., Tx beam #1) is applied to SRS resources #1 and #2 included in SRS resource set #1, and the same beam (e.g., Tx beam #2) is applied to SRS resources #3 and #4 included in SRS resource set #1.

[0100] Some SRS resources to which the same beam is applied may be defined in the specifications or may be configured / instructed to the UE by the base station via RRC / MAC CE / DCI.

[0101] For example, in an SRS resource set for which predetermined parameters are provided / configured, the same beam (e.g., Tx beam #1) may be applied to the first X SRS resources, and another same beam (e.g., Tx beam #2) may be applied to the second X SRS resources.

[0102] The first X SRS resources may refer to the X SRS resources with the smallest (or largest) indexes among the multiple SRS resources included in the SRS resource set. The value of X may be defined in the specifications, configured / instructed to the UE by the base station via RRC / MAC CE / DCI, or determined based on the UE capabilities.

[0103] [Option 2-2] A predetermined parameter (or predetermined information) regarding a transmission beam to be applied to an SRS resource may be provided from the base station to the UE. For example, the predetermined parameter may be provided for an SRS resource set by RRC / MAC CE / DCI. When the predetermined parameter is provided / configured for an SRS resource set, it may be determined based on the value of the predetermined parameter whether the same beam or different beams are applied to the SRS resources in the SRS resource set.

[0104] When the predetermined parameter is set to a first value, the UE controls transmission by applying the same beam (e.g., Tx beam) to at least some (or all) of the SRS resources included in the SRS resource set, whereas when the predetermined parameter is set to a second value, the UE controls transmission by applying different beams (e.g., Tx beams) to at least some (or all) of the SRS resources included in the SRS resource set.

[0105] The first value may be, for example, 0 (or 1) or state X. The second value may be, for example, 1 (or 0) or state Y.

[0106] The base station may apply two steps to complete beam management. In step 1, the base station may configure the UE to use different beams for the SRS resource set. Step 1 allows the base station to identify the optimal transmit beam (Tx beam) for the UE. In step 2, the base station may configure the UE to use the same beam for the SRS resource set. Step 2 allows the base station to identify the optimal receive beam (Rx beam) for the base station.

[0107] [Option 2-3] Two or more SRS resources may be linked. The UE may control two or more linked / associated SRS resources (or two or more SRS resources to which a link is provided) to transmit using the same beam (see Figs. 10A and 10B).

[0108] 10A shows a case where all SRS resources included in SRS resource set #1 (here, SRS resources #1 to #4) are linked / associated. The UE controls SRS resources #1 to #4 so that they are transmitted using the same beam (Tx beam).

[0109] 10B shows a case where some SRS resources (here, SRS resources #1 and #3) included in SRS resource set #1 are linked / associated. The UE controls SRS resources #1 and #3 so that they are transmitted using the same beam (Tx beam).

[0110] The link / association of two or more SRS resources may be defined in a specification or may be configured / instructed by the base station to the UE by RRC / MAC CE / DCI.

[0111] As a link between SRS resources, at least one of the following options 2-3A to 2-3B may be applied.

[0112] <<Option 2-3A>> For each SRS resource, one or more SRS resources may be configured as linked SRS resources. The base station may configure / instruct the UE to configure / instruct one or more SRS resources as linked SRS resources for a certain SRS resource using RRC / MAC CE / DCI.

[0113] <<Option 2-3B>> A new link-related parameter (e.g., link-id) may be provided for each SRS resource. For example, the base station may provide a link-related parameter (e.g., link-id) for each SRS resource using RRC / MAC CE / DCI. Multiple SRS resources provided with the same link ID may be linked to each other.

[0114] <Variations> In the first embodiment, a link / association is established between a plurality of SRS resources each included in a different SRS resource set, and in the second embodiment, a link / association is established between a plurality of SRS resources included in one SRS resource set, but this is not limiting.

[0115] In the first embodiment / second embodiment, links / associations may be established between multiple SRS resources included in a certain SRS resource set, and further links / associations may be established between the multiple SRS resources and one or more SRS resources included in another SRS resource set (see FIG. 11).

[0116] 11 illustrates a case where SRS resources #1 and #2 included in the first SRS resource set #1 and SRS resources #5 and #6 included in the second SRS resource set #2 are linked / associated. The UE may control the SRS resources #1 and #2 included in the first SRS resource set #1 and the SRS resources #5 and #6 included in the second SRS resource set #2 so that the same beam (Tx beam) is applied to transmission.

[0117] This allows flexible configuration of SRS resources to which links / associations are set.

[0118] Although the above description illustrates a case where different SRS resource sets include different SRS resource IDs, this is not limiting. Different SRS resource sets may include SRS resources with the same ID. In this case, SRS resources with the same ID in different SRS resource sets may be linked / associated. The UE may control the SRS resources to transmit by applying the same transmission beam to the same SRS resource ID (or the same SRS resource ID transmitted in different transmission periods).

[0119] The UE may determine transmit beams (e.g., the same / common spatial domain filter / TCI state) to apply to multiple SRS resources (e.g., linked / associated SRS resources) based on information instructed by the base station via RRC / MAC CE / DCI. In this case, for multiple linked SRS resources, only the transmit beam (or spatial domain filter / TCI state) corresponding to one SRS resource may be configured / instructed to the UE. The UE may also apply the transmit beam (or spatial domain filter / TCI state) corresponding to a certain SRS resource to other linked / associated SRS resources. This makes it possible to reduce the notification of configuration / instruction information for the transmit beams (or spatial domain filters / TCI states) of SRS resources.

[0120] Third Embodiment In a third embodiment, a case will be described in which the same beam (for example, Tx beam) is used to repeat (for example, repetition) SRS resources.

[0121] The UE may transmit different repetitions of the SRS resource using the same beam, and the base station may perform receive beam sweeping (Rx beam sweeping) across the repetitions to which the same UE transmit beam is applied.

[0122] Parameters / information regarding the repetition setting of SRS resources (e.g., repetition setting parameters / setting information) may be configured / instructed to the UE by the base station via RRC / MAC CE / DCI. The repetition setting parameters / setting information may indicate at least one of enabling (or activating) / disabling (or deactivating) the repetition and the number of repetitions (e.g., the repetition number). The repetition setting parameters / setting information may be provided for each SRS resource / each SRS resource set.

[0123] Each repetition of the SRS resource may be transmitted over the same number of OFDM symbols, or over the same number of subcarriers, or over the same number of OFDM symbols and the same number of subcarriers.

[0124] As the repetition of SRS resources, at least one of the following options 3-1 to 3-3 may be applied.

[0125] [Option 3-1] M repetitions may be transmitted in M ​​consecutive UL slots, each repetition may be transmitted in a different slot, and each repetition of the SRS resource may be transmitted in the same OFDM symbol and the same set of subcarriers of the slot (see Figure 12).

[0126] 12 shows an example in which M (here, M=4) repetitions of SRS resources are transmitted in M ​​consecutive UL slots, respectively, where each repetition of SRS resources is transmitted using the same symbols (here, a predetermined number of symbols in the latter half of the slot) and the same subcarriers in each slot.

[0127] The UE may control the transmission by applying the same beam (Tx beam) for each repetition of the SRS resource, and the base station may perform reception / measurement (e.g., receive beam sweeping) on ​​the repetition of the SRS resource transmitted from the UE.

[0128] [Option 3-2] The M repetitions may be transmitted in N×M consecutive upstream OFDM symbols, possibly spanning multiple slots (see FIG. 13A), where N corresponds to the number of OFDM symbols in each repetition.

[0129] Figure 13A shows a case where repetitions of SRS resources (here, repetition #1 and repetition #2) are transmitted in N x M (here, N = 7, M = 2) consecutive uplink OFDM symbols spanning multiple slots (here, 2 slots).

[0130] [Option 3-3] The M repetitions may be transmitted with a gap of a predetermined number (e.g., X) of OFDM symbols between each repetition (see FIG. 13B). The gap is not limited to X and may be a variable value equal to or greater than X. In the present disclosure, the term "gap" may be interpreted as an offset.

[0131] 13B shows a case where a gap of X OFDM symbols (here, X=2) is provided between M repetitions. The gap may be defined in the specification, may be configured / instructed to the UE by the base station via RRC / MAC CE / DCI, or may be determined based on UE capabilities.

[0132] [Application of Frequency Hopping] The repeated transmission (or the number of repetitions (M)) of the SRS resource in Option 3-1 to Option 3-3 may be applied independently of the repetition factor (R) applied in frequency hopping of the SRS.

[0133] When Nx OFDM symbols are configured for the SRS resource and a repetition factor R is configured for the SRS resource, the full hopping bandwidth has a size equal to a subband spanning a predetermined set (e.g., an Nx / R set) of R OFDM symbols (see FIG. 14 ). That is, the SRS to which frequency hopping is applied (or the full hopping bandwidth of the SRS) may be sounded with a size equal to a subband spanning a predetermined set (e.g., an Nx / R set) of R OFDM symbols.

[0134] 14 shows an example of frequency hopping of an SRS when Nx (here, Nx=8) OFDM symbols and a repetition factor R (here, R=2) are set for the SRS resource. Here, the case where the SRS is frequency hopped and transmitted in 4 (Nx / R) sets of symbols, each set consisting of 2 (R) symbols, is shown.

[0135] When the number of repetitions (M) of the SRS resource is applied independently of the repetition factor (R), each of the M repetitions may be transmitted over Ns OFDM symbols. When the repetition factor R is set, the full hopping bandwidth of each repetition may consist of subbands of equal size across an Nx / R set of R OFDM symbols (see FIG. 15). That is, the SRS of each repetition (or the full hopping bandwidth of the SRS) may be sounded with a size equal to the subbands across an Nx / R set of R OFDM symbols.

[0136] 15 shows an example of frequency hopping of SRS when Nx (here, Nx=8) OFDM symbols and a repetition factor R (here, R=2) are set in each repetition of M (here, M=2) SRS resources. Here, the case where the SRS is frequency hopped and transmitted in 4 (Nx / R) sets of symbols, each set consisting of 2 (R) symbols, is shown.

[0137] [Variations] The UE may control the same transmit beam (Tx beam) for a certain duration for the same SRS resource (e.g., the same SRS resource ID), which may be SRS resources included in the same SRS resource set ID.

[0138] The predetermined period may be defined in advance in a specification, may be set / instructed to the UE by the base station through RRC / MAC CE / DCI, may be determined based on UE capabilities, or may not be set / instructed (no limit on the predetermined period).

[0139] The predetermined operation of applying the same transmission beam to the same SRS resource ID in a predetermined period may be applied only to some (or specific) SRSs, or may be applied to all SRSs. The certain (or specific) SRSs may be determined based on the transmission type. For example, the predetermined operation may be applied only to periodic SRSs (P-SRSs). The predetermined operation may also be applied to all SRSs regardless of the transmission type (including periodic SRSs, semi-persistent SRSs, and aperiodic SRSs).

[0140] 16 shows an example of applying the same transmission beam to the same SRS resource ID during a predetermined period. When SRS resource set #1 includes multiple SRS resources #1 to #4, the UE may control the SRS resources with the same ID to apply the same transmission beam (Tx beam) during a predetermined period.

[0141] The base station may perform Rx beam sweeping (e.g., reception / measurement using different Rx beams) on different time occasions of receiving the same SRS resource ID during a predetermined period.

[0142] <Supplementary Information> [Notification of Information to UE] In the above-described embodiments, any information may be notified to the UE (from a network (NW) (e.g., a base station (BS))) (in other words, reception of any information from the BS by the UE) using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal / channel (e.g., PDCCH, PDSCH, reference signal), or a combination thereof.

[0143] When the notification is performed by a MAC CE, the MAC CE may be identified by including a new Logical Channel ID (LCID) in the MAC subheader, which is not defined in existing standards.

[0144] When the notification is made by DCI, the notification may be made by a specific field of the DCI, a Radio Network Temporary Identifier (RNTI) used to scramble Cyclic Redundancy Check (CRC) bits assigned to the DCI, the format of the DCI, etc.

[0145] Furthermore, notification of any information to the UE in the above embodiments may be performed periodically, semi-persistently, or aperiodically.

[0146] [Notification of Information from UE] In the above-described embodiments, notification of any information from the UE (to the NW) (in other words, transmission / report of any information from the UE to the BS) may be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MAC CE), a specific signal / channel (e.g., PUCCH, PUSCH, PRACH, reference signal), or a combination thereof.

[0147] When the notification is performed by a MAC CE, the MAC CE may be identified by including a new LCID, which is not defined in existing standards, in the MAC subheader.

[0148] If the notification is made by UCI, the notification may be transmitted using PUCCH or PUSCH.

[0149] Furthermore, any information in the above-described embodiments may be notified from the UE periodically, semi-persistently, or aperiodically.

[0150] [Application of Each Embodiment] At least one of the above-described embodiments may be applied when a specific condition is met. The specific condition may be defined in a standard or may be notified to a UE / BS using higher layer signaling / physical layer signaling.

[0151] At least one of the above-described embodiments may be applied only to UEs that have reported or support a specific UE capability. Note that "supporting" and "whether to support" may be interpreted as interchangeable.

[0152] The specific UE capability may indicate at least one of the following: - Supporting specific processing / operation / control / information for at least one of the above embodiments; - Supporting linking / association between SRS resource sets; - Supporting linking / association between SRS resources included in different SRS resource sets; - Supporting linking / association between SRS resources included in the same SRS resource set; - Supporting transmission using the same transmit beam (Tx beam) on SRS resources included in different SRS resource sets; - Supporting transmission using the same transmit beam (Tx beam) on SRS resources included in the same SRS resource set; - Supporting application of the same transmit beam (Tx beam) to repeated SRS resources.

[0153] Furthermore, the above-mentioned specific UE capability may be a capability that is applied across all frequencies (commonly regardless of frequency), or may be a capability for each frequency (e.g., one or a combination of a cell, a band, a band combination, a BWP, a component carrier, etc.), or may be a capability for each frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or may be a capability for each subcarrier spacing (SubCarrier Spacing (SCS)), or may be a capability for each Feature Set (FS) or Feature Set Per Component-carrier (FSPC).

[0154] Furthermore, the specific UE capability may be a capability that is applied to all duplexing methods (commonly regardless of the duplexing method), or may be a capability for each duplexing method (e.g., Time Division Duplex (TDD) or Frequency Division Duplex (FDD)).

[0155] Furthermore, at least one of the above-described embodiments may be applied when the UE configures / activates / triggers specific information related to the above-described embodiment (or performs the operations of the above-described embodiment) through higher layer signaling / physical layer signaling. For example, the specific information may be any RRC parameter for a specific release (e.g., Rel. 18 / 19), etc.

[0156] If the UE does not support at least one of the specific UE capabilities or is not configured with the specific information, the UE may apply, for example, the behavior of Rel. 15 / 16 / 17.

[0157] (Supplementary Notes) The following inventions are supplementary notes regarding one embodiment of the present disclosure. [Supplementary Note 1] A terminal comprising: a receiving unit that receives group-common Downlink Control Information (DCI) having an instruction regarding Sounding Reference Signal (SRS) transmission power control; and a control unit that executes SRS transmission power control independently for each Transmission / Reception Point (TRP) of the SRS destination based on the instruction. [Supplementary Note 2] The terminal according to Supplementary Note 1, wherein the group-common DCI includes, as the instruction, a Transmission Power Control (TPC) command for each TRP or each TRP group, and at least one of p0 and α. [Supplementary Note 3] The terminal according to Supplementary Note 1 or Supplementary Note 2, wherein the group-common DCI includes, as the instruction, a TPC command for each Component Carrier (CC) and each TRP. [Supplementary Note 4] The terminal according to any one of Supplementary Notes 1 to 3, wherein the group-common DCI includes both an SRS request and a TPC command.

[0158] (Supplementary Notes) The following inventions are further supplemented with respect to one embodiment of the present disclosure. [Supplementary Note 1] A terminal comprising: a receiver that receives information regarding at least one of an association between a plurality of Sounding Reference Signal (SRS) resources and an association between a plurality of SRS resource sets; and a controller that determines, based on at least one of the association between the SRS resources and the association between the SRS resource sets, to which the same transmit beam, the same spatial domain filter, or the same transmit configuration indicator (TCI) state is to be applied. [Supplementary Note 2] The terminal according to Supplementary Note 1, wherein the controller applies the same transmit beam, the same spatial domain filter, or the same TCI state to at least one of a plurality of SRS resources included in the same SRS resource set and a plurality of SRS resources included in different SRS resource sets. [Supplementary Note 3] The terminal according to Supplementary Note 1 or Supplementary Note 2, wherein the controller applies the same transmit beam, the same spatial domain filter, or the same TCI state to SRS resources to which repeated transmission is applied. [Supplementary Note 4] The terminal according to any one of Supplementary Note 1 to Supplementary Note 3, wherein, when repetition is applied to the SRS resource, frequency hopping is applied in units of SRS resources that are repeatedly transmitted.

[0159] (Wireless Communication System) The configuration of a wireless communication system according to an embodiment of the present disclosure will be described below. In this wireless communication system, communication is performed using any one of the wireless communication methods according to the above embodiments of the present disclosure or a combination thereof.

[0160] 17 is a diagram illustrating an example of a schematic configuration of a wireless communication system according to an embodiment. The wireless communication system 1 (which may be simply referred to as system 1) may be a system that realizes communication using Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) specified by the Third Generation Partnership Project (3GPP).

[0161] The wireless communication system 1 may also support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). 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)), etc.

[0162] In EN-DC, the LTE (E-UTRA) base station (eNB) is the master node (Master Node (MN)), and the NR base station (gNB) is the secondary node (Secondary Node (SN)). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0163] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity in which both the MN and SN are NR base stations (gNBs) (NR-NR Dual Connectivity (NN-DC))).

[0164] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with a relatively wide coverage, and base stations 12 (12a-12c) that are located within the macrocell C1 and form small cells C2 that are smaller than the macrocell C1. A user terminal 20 may be located within at least one of the cells. The locations and numbers of the cells and user terminals 20 are not limited to the embodiment shown in the figure. Hereinafter, when there is no need to distinguish between the base stations 11 and 12, they will be collectively referred to as base station 10.

[0165] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of carrier aggregation (CA) using multiple component carriers (CCs) and dual connectivity (DC).

[0166] Each CC may 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 be included in FR1, and the small cell C2 may 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). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may correspond to a higher frequency band than FR2.

[0167] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0168] The multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with the Common Public Radio Interface (CPRI), an 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 corresponding to the upper station may be called an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) may be called an IAB node.

[0169] The base station 10 may be connected to the core network 30 directly or via another base station 10. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), a Next Generation Core (NGC), and the like.

[0170] The core network 30 may include network functions (Network Functions (NF)) 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 Operation, Administration and Maintenance (Management) (OAM). A single network node may provide multiple functions. Communication with an external network (e.g., the Internet) may also be performed via the DN.

[0171] The user terminal 20 may be a terminal that supports at least one of communication methods such as LTE, LTE-A, and 5G.

[0172] An Orthogonal Frequency Division Multiplexing (OFDM)-based radio access scheme may be used in the wireless communication system 1. For example, 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), or the like may be used in at least one of the downlink (DL) and uplink (UL).

[0173] The radio access scheme may also be called a waveform. Note that in the wireless communication system 1, other radio access schemes (e.g., other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the UL and DL radio access schemes.

[0174] In the wireless communication system 1, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)) shared by each user terminal 20, a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. may be used as the downlink channel.

[0175] Furthermore, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)) shared by each user terminal 20, an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), or the like may be used as an uplink channel.

[0176] The PDSCH transmits user data, higher layer control information, a System Information Block (SIB), etc. The PUSCH may transmit user data, higher layer control information, etc. Furthermore, the PBCH may transmit a Master Information Block (MIB).

[0177] Lower layer control information may be transmitted by the PDCCH. The lower layer control information may include, for example, Downlink Control Information (DCI) including scheduling information for at least one of the PDSCH and the PUSCH.

[0178] Note that the DCI for scheduling the PDSCH may be referred to as a DL assignment, a DL DCI, etc., and the DCI for scheduling the PUSCH may be referred to as a UL grant, a UL DCI, etc. Note that the PDSCH may be replaced with DL data, and the PUSCH may be replaced with UL data.

[0179] A control resource set (CORESET) and a search space may be used to detect the PDCCH. The CORESET corresponds to resources for searching for DCI. The search space corresponds to a search region and a search method for PDCCH candidates. One CORESET may be associated with one or more search spaces. The UE may monitor the CORESET associated with a certain search space based on the search space configuration.

[0180] One search space may correspond to PDCCH candidates corresponding to one or more aggregation levels. One or more search spaces may be referred to as a search space set. Note that the terms "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," "CORESET configuration," and the like in the present disclosure may be read interchangeably.

[0181] The PUCCH may transmit uplink control information (UCI) including at least one of channel state information (CSI), delivery confirmation information (which may be called, for example, Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). The PRACH may transmit a random access preamble for establishing a connection with a cell.

[0182] In the present disclosure, downlink, uplink, etc. may be expressed without adding "link." Also, various channels may be expressed without adding "Physical" to the beginning.

[0183] In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), etc. may be transmitted. In the wireless communication system 1, as the DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc. may be transmitted.

[0184] The synchronization signal may be, for example, at least one of a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS). A signal block including an SS (PSS, SSS) and a PBCH (and a DMRS for the PBCH) may be referred to as an SS / PBCH block, an SS Block (SSB), or the like. Note that the SS, SSB, and the like may also be referred to as a reference signal.

[0185] Furthermore, in the wireless communication system 1, a sounding reference signal (SRS), a demodulation reference signal (DMRS), or the like may be transmitted as an uplink reference signal (UL-RS). Note that the DMRS may also be called a user equipment-specific reference signal (UE-specific reference signal).

[0186] (Base Station) Fig. 18 is a diagram showing an example of the configuration of a base station according to an embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that the base station may include one or more of each of the control unit 110, the transceiver unit 120, the transceiver antenna 130, and the transmission line interface 140.

[0187] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0188] The control unit 110 performs overall control of the base station 10. The control unit 110 can be configured from a controller, a control circuit, and the like that are explained based on common understanding in the technical field to which the present disclosure relates.

[0189] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may control transmission and reception using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140, measurement, etc. The control unit 110 may generate data, control information, sequences, etc. to be transmitted as signals, and transfer them to the transceiver unit 120. The control unit 110 may perform call processing (setting up, releasing, etc.) of communication channels, status management of the base station 10, management of radio resources, etc.

[0190] The transceiver unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transceiver unit 120 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0191] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or may be configured from a transmitting unit and a receiving unit. The transmitting unit may be configured from a transmission processing unit 1211 and an RF unit 122. The receiving unit may be configured from a reception processing unit 1212, the RF unit 122, and a measurement unit 123.

[0192] The transmitting and receiving antenna 130 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0193] The transceiver 120 may transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 120 may receive the above-mentioned uplink channel, uplink reference signal, etc.

[0194] The transceiver 120 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0195] The transmitter / receiver unit 120 (transmission processing unit 1211) may perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on data, control information, etc. obtained from the control unit 110, and generate a bit string to be transmitted.

[0196] The transmitter / receiver unit 120 (transmission processing unit 1211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, Discrete Fourier Transform (DFT) processing (if necessary), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0197] The transceiver unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 130.

[0198] On the other hand, the transceiver unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 130.

[0199] The transceiver 120 (reception processing unit 1212) may apply reception processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, thereby acquiring user data, etc.

[0200] The transceiver 120 (measurement unit 123) may perform measurements on the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc. based on the received signal. The measurement unit 123 may measure 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 be output to the control unit 110.

[0201] The transmission path interface 140 may transmit and receive signals (backhaul signaling) between devices included in the core network 30 (e.g., network nodes that provide NF), other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0202] The transmitting section and receiving section of the base station 10 in the present disclosure may be configured by at least one of the transmitting / receiving section 120, the transmitting / receiving antenna 130, and the transmission path interface 140.

[0203] The transceiver 120 may transmit information regarding at least one of an association between a plurality of Sounding Reference Signal (SRS) resources and an association between a plurality of SRS resource sets.

[0204] The control unit 110 may control the direction of transmission of multiple SRS resources that apply the same transmit beam, the same spatial domain filter, or the same transmit configuration indicator (TCI) state based on information regarding at least one of the association between SRS resources and the association between SRS resource sets.

[0205] (User Terminal) Fig. 19 is a diagram showing an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transceiver unit 220, and a transceiver antenna 230. Note that the user terminal may include one or more of each of the control unit 210, the transceiver unit 220, and the transceiver antenna 230.

[0206] In this example, the functional blocks of the characteristic parts of the present embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each unit described below may be omitted.

[0207] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be configured from a controller, a control circuit, etc., which are described based on common understanding in the technical field to which the present disclosure relates.

[0208] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may control transmission and reception, measurement, etc. using the transceiver unit 220 and the transceiver antenna 230. The control unit 210 may generate data, control information, sequences, etc. to be transmitted as signals and transfer them to the transceiver unit 220.

[0209] The transceiver 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 transceiver unit 220 may be configured with a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measurement circuit, a transceiver circuit, etc., which are described based on common understanding in the technical field related to the present disclosure.

[0210] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or may be composed of a transmitting unit and a receiving unit. The transmitting unit may be composed of a transmission processing unit 2211 and an RF unit 222. The receiving unit may be composed of a reception processing unit 2212, an RF unit 222, and a measurement unit 223.

[0211] The transmitting / receiving antenna 230 can be configured from an antenna described based on common understanding in the technical field to which the present disclosure relates, such as an array antenna.

[0212] The transceiver 220 may receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transceiver 220 may transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0213] The transceiver unit 220 may form at least one of the transmit beam and the receive beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0214] The transceiver unit 220 (transmission processing unit 2211) may perform 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, and generate a bit string to be transmitted.

[0215] The transmitter / receiver unit 220 (transmission processing unit 2211) may perform transmission processing such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output a baseband signal.

[0216] Whether or not to apply DFT processing may be based on the setting of transform precoding. When transform precoding is enabled for a certain channel (e.g., PUSCH), the transceiver unit 220 (transmission processing unit 2211) may perform DFT processing as the transmission processing to transmit the channel using a DFT-s-OFDM waveform, and if not, it may not be necessary to perform DFT processing as the transmission processing.

[0217] The transceiver unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc. on the baseband signal to a radio frequency band, and transmit the radio frequency band signal via the transceiver antenna 230.

[0218] On the other hand, the transceiver unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc. on the radio frequency band signal received by the transceiver antenna 230.

[0219] The transceiver unit 220 (reception processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (which may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal, and acquire user data, etc.

[0220] The transceiver 220 (measurement unit 223) may perform measurements on the received signal. For example, the measurement unit 223 may perform RRM measurements, CSI measurements, etc. based on the received signal. The measurement unit 223 may measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0221] The measurement unit 223 may derive channel measurements for CSI calculation based on the channel measurement resources. The channel measurement resources may be, for example, non-zero power (NZP) CSI-RS resources. The measurement unit 223 may also derive interference measurements for CSI calculation based on the interference measurement resources. The interference measurement resources may be at least one of an NZP CSI-RS resource for interference measurement, a CSI-Interference Measurement (IM) resource, etc. Note that CSI-IM may be referred to as CSI-Interference Management (IM) or may be interchangeably read as Zero Power (ZP) CSI-RS. Note that in the present disclosure, CSI-RS, NZP CSI-RS, ZP CSI-RS, CSI-IM, CSI-SSB, etc. may be interchangeably read as interchangeable.

[0222] The transmitting unit and receiving unit of the user terminal 20 in the present disclosure may be configured by at least one of the transmitting / receiving unit 220 and the transmitting / receiving antenna 230.

[0223] The transceiver 220 may receive information regarding at least one of an association between a plurality of Sounding Reference Signal (SRS) resources and an association between a plurality of SRS resource sets.

[0224] The control unit 210 may determine multiple SRS resources to which the same transmit beam, the same spatial domain filter, or the same transmit configuration indicator (TCI) state is applied based on at least one of the association between SRS resources and the association between SRS resource sets.

[0225] The control unit 210 may apply the same transmit beam, the same spatial domain filter, or the same TCI state to at least one of multiple SRS resources included in the same SRS resource set and multiple SRS resources included in different SRS resource sets.

[0226] The control unit 210 may apply the same transmission beam, the same spatial domain filter, or the same TCI state to the SRS resource to which repeated transmission is applied.

[0227] When repetition is applied to the SRS resource, frequency hopping may be applied to each SRS resource that is repeatedly transmitted.

[0228] (Hardware Configuration) Note that the block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wires, wirelessly, etc.) and these multiple devices. The functional block may be realized by combining software with the single device or the multiple devices.

[0229] Here, the functions include, but are not limited to, judgment, determination, judgment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, deeming, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission may be called a transmitting unit, transmitter, etc. As described above, the implementation method of each is not particularly limited.

[0230] For example, a base station, a user terminal, etc. according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 20 is a diagram illustrating an example of the hardware configuration of a base station and a user terminal according to an embodiment. The above-described base station 10 and user terminal 20 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0231] In the present disclosure, the terms apparatus, circuit, device, section, unit, etc. may be used interchangeably. The hardware configurations of the base station 10 and the user terminal 20 may be configured to include one or more of the devices shown in the drawings, or may be configured to exclude some of the devices.

[0232] For example, although only one processor 1001 is shown, there may be multiple processors. Furthermore, processing may be performed by one processor, or processing may be performed by two or more processors simultaneously, serially, or in other ways. Furthermore, processor 1001 may be implemented by one or more chips.

[0233] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading specified software (programs) onto hardware such as a processor 1001 and a memory 1002, causing the processor 1001 to perform calculations, control communication via the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0234] The processor 1001, for example, runs an operating system to control the entire computer. The processor 1001 may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, at least a part of the above-mentioned control unit 110 (210), transceiver unit 120 (220), etc. may be realized by the processor 1001.

[0235] The processor 1001 also reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and the other functional blocks may be implemented in a similar manner.

[0236] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EEPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. The memory 1002 may also be referred to as a register, cache, main memory, etc. The memory 1002 may store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

[0237] Storage 1003 is a computer-readable recording medium and may be composed of at least one of, for example, a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disc (e.g., a Compact Disc ROM (CD-ROM)), a digital versatile disc, a Blu-ray disc), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, a stick, a key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be referred to as an auxiliary storage device.

[0238] The communication device 1004 is hardware (transmission / reception device) for communicating 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, or a communication module. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmission / reception unit 120 (220), transmission / reception antenna 130 (230), etc. may be realized by the communication device 1004. The transmission / reception unit 120 (220) may be implemented as a transmission unit 120a (220a) and a reception unit 120b (220b) that are physically or logically separated.

[0239] 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 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 outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0240] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0241] Furthermore, the base station 10 and the user terminal 20 may 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), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized using this hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0242] (Modifications) Note that terms described in the present disclosure and terms necessary for understanding the present disclosure may be replaced with terms having the same or similar meanings. For example, a channel, a symbol, and a signal (signal or signaling) may be interchangeable. A signal may also be a message. A reference signal may be abbreviated as RS, and may also be called a pilot, pilot signal, etc. depending on the applicable standard. A component carrier (CC) may also be called a cell, frequency carrier, carrier frequency, etc.

[0243] A radio frame may be composed of one or more periods (frames) in the time domain. Each of the one or more periods (frames) constituting a radio frame may be called a subframe. Furthermore, a subframe may be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0244] Here, the numerology may be a communication parameter applied to at least one of transmission and reception of a signal or channel, and may indicate at least one of, for example, Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering performed by a transceiver in the frequency domain, and specific windowing performed by a transceiver in the time domain.

[0245] A slot may be composed of one or more symbols (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol) in the time domain. A slot may also be a time unit based on numerology.

[0246] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (PUSCH) mapping type B.

[0247] A radio frame, a subframe, a slot, a minislot, and a symbol all represent time units for transmitting signals. The radio frame, the subframe, the slot, the minislot, and the symbol may be referred to by other names corresponding to the radio frame, the subframe, the slot, the minislot, and the symbol. Note that the time units such as a frame, a subframe, a slot, a minislot, and a symbol in the present disclosure may be interchangeable.

[0248] For example, one subframe may be referred to as a TTI, or multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0249] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of TTI is not limited to this.

[0250] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0251] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0252] A TTI having a time length of 1 ms may be called a regular TTI (TTI in 3GPP Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0253] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

[0254] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0255] In addition, an RB may include one or more symbols in the time domain and may have a length of one slot, one minislot, one subframe, or one TTI, each of which may be composed of one or more resource blocks.

[0256] In addition, one or more RBs may 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.

[0257] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0258] A Bandwidth Part (BWP), which may also be referred to as a partial bandwidth, may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

[0259] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). One or more BWPs may be configured for a UE within one carrier.

[0260] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0261] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc. may be changed in various ways.

[0262] Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values ​​from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by a predetermined index.

[0263] The names used for parameters and the like in this disclosure are not intended to be limiting in any way. Furthermore, the mathematical expressions and the like using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0264] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0265] Furthermore, information, signals, etc. may be output from a higher layer to a lower layer and / or from a lower layer to a higher layer. Information, signals, etc. may be input / output via multiple network nodes.

[0266] Input and output information, signals, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input and output information, signals, etc. may be overwritten, updated, or added. Output information, signals, etc. may be deleted. Input information, signals, etc. may be transmitted to another device.

[0267] The notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information in the present disclosure may be performed by physical layer signaling (e.g., Downlink Control Information (DCI) and Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB) and System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0268] Note that the physical layer signaling may be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. Furthermore, the RRC signaling may be referred to as an RRC message, such as an RRC Connection Setup message or an RRC Connection Reconfiguration message. Furthermore, the MAC signaling may be notified using, for example, a MAC Control Element (CE).

[0269] Furthermore, notification of specified information (e.g., notification that "it is X") is not limited to explicit notification, but may be made implicitly (e.g., by not notifying the specified information or by notifying other information).

[0270] The determination may be made by a value represented by one bit (0 or 1), by a Boolean value represented by true or false, or by a comparison of numerical values ​​(e.g., comparison with a predetermined value).

[0271] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0272] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), these wired and / or wireless technologies are included within the definition of transmission media.

[0273] As used in this disclosure, the terms "system" and "network" may be used interchangeably. A "network" may refer to devices included in the network (e.g., base stations).

[0274] In this disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "layer," "number of layers," "rank," "resource," "resource set," "beam," "beam width," "beam angle," "antenna," "antenna element," "panel," "UE panel," "transmitting entity," "receiving entity," etc. may be used interchangeably.

[0275] In the present disclosure, the term "antenna port" may be interchangeably read as an antenna port for any signal / channel (e.g., a demodulation reference signal (DMRS) port). In the present disclosure, the term "resource" may be interchangeably read as a resource for any signal / channel (e.g., a reference signal resource, an SRS resource, etc.). The resource may include time / frequency / code / space / power resources. Furthermore, the spatial domain transmission filter may include at least one of a spatial domain transmission filter and a spatial domain reception filter.

[0276] The group may include, for example, at least one of a spatial relationship group, a Code Division Multiplexing (CDM) group, a Reference Signal (RS) group, a Control Resource Set (CORESET) group, a PUCCH group, an antenna port group (e.g., a DMRS port group), a layer group, a resource group, a beam group, an antenna group, a panel group, and the like.

[0277] In addition, in the present disclosure, beam, SRS Resource Indicator (SRI), CORESET, CORESET pool, PDSCH, PUSCH, codeword (CW), transport block (TB), RS, etc. may be read as interchangeable terms.

[0278] In addition, in the present disclosure, the terms TCI state, downlink TCI state (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, joint TCI state, etc. may be read interchangeably.

[0279] Furthermore, in the present disclosure, terms such as "QCL," "QCL assumption," "QCL relationship," "QCL type information," "QCL property / properties," "specific QCL type (e.g., Type A, Type D) property," and "specific QCL type (e.g., Type A, Type D)" may be interchangeable.

[0280] In the present disclosure, terms such as index, identifier (ID), indicator, indication, and resource ID may be interchangeable. In the present disclosure, terms such as sequence, list, set, group, cluster, and subset may be interchangeable.

[0281] Furthermore, the spatial relationship information identifier (ID) (TCI state ID) and the spatial relationship information (TCI state) may be interchangeable. The "spatial relationship information (TCI state)" may be interchangeable with "set of spatial relationship information (TCI state)", "one or more pieces of spatial relationship information", etc. The TCI state and the TCI may be interchangeable. The spatial relationship information and the spatial relationship may be interchangeable.

[0282] 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," etc. may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, picocell, etc.

[0283] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can be provided with communication service by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms "cell" or "sector" refer to part or all of the coverage area of ​​a base station and / or base station subsystem that provides communication service within that coverage.

[0284] In the present disclosure, a base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control / operate based on the information.

[0285] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0286] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0287] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may be a device mounted on a moving object, the moving object itself, etc.

[0288] The mobile body is a movable object that can move at any speed and naturally includes cases where the mobile body is stationary. Examples of the mobile body include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and objects mounted thereon. The mobile body may also be a mobile body that moves autonomously based on an operation command.

[0289] The mobile object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Note that at least one of the base station and the mobile station may also include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0290] 21 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, axles 48, an electronic control unit 49, various sensors (including a current sensor 50, an RPM sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0291] The drive unit 41 is configured with at least one of an engine, a motor, and a hybrid of an engine and a motor, for example. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by a user.

[0292] The electronic control unit 49 is composed of a microprocessor 61, memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals are input to the electronic control unit 49 from various sensors 50-58 provided in the vehicle. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

[0293] The signals from the various sensors 50-58 include a current signal from a current sensor 50 that senses the current of the motor, a rotation speed signal of the front wheels 46 / rear wheels 47 obtained by a rotation speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58.

[0294] The information service unit 59 is composed of various devices, such as a car navigation system, an audio system, speakers, a display, a television, and a radio, for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information acquired from external devices via the communication module 60 or the like to provide various information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0295] The information service unit 59 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0296] The driving assistance system unit 64 includes various devices for providing functions to prevent accidents and reduce the driver's driving burden, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Units (IMUs), Inertial Navigation Systems (INSs)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driving assistance functions or autonomous driving functions.

[0297] The communication module 60 can communicate with the microprocessor 61 and components 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 to and from the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58, which are provided in the vehicle 40.

[0298] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the base station 10 or the user terminal 20 described above. Furthermore, the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 described above (or may function as at least one of the base station 10 and the user terminal 20).

[0299] The communication module 60 may transmit at least one of signals from the above-mentioned various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above-mentioned input.

[0300] The communication module 60 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from an external device and displays it on an information service unit 59 provided in the vehicle. The information service unit 59 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0301] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axles 48, various sensors 50-58, and the like provided in the vehicle 40.

[0302] Furthermore, a base station in the present disclosure may be read as a user terminal. For example, the aspects / embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may be configured to have the functions of the base station 10 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, terms such as an uplink channel and a downlink channel may be read as a sidelink channel.

[0303] Similarly, the user terminal in the present disclosure may be read as a base station, in which case the base station 10 may be configured to have the functions of the user terminal 20 described above.

[0304] In the present disclosure, an operation described as being performed by a base station may be performed by its upper node in some cases. It is apparent that in a network including one or more network nodes having a base station, various operations performed for communication with a terminal may be performed by the base station, one or more network nodes other than the base station (such as, but not limited to, a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc.), or a combination thereof.

[0305] Each aspect / embodiment described in this disclosure may be used alone, in combination, or switched depending on the implementation. Furthermore, the order of the processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0306] Each aspect / embodiment described in the present disclosure may be a technology other than Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or decimal number)), 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 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802. The present invention may be applied to systems that use IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable wireless communication methods, or to next-generation systems that are expanded, modified, created, or defined based on these. Furthermore, the present invention may be applied to a combination of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0307] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0308] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must in some way precede the second element.

[0309] The term "determining" as used in this disclosure may encompass a wide variety of actions. For example, "determining" may be considered to be judging, calculating, computing, processing, deriving, investigating, looking up, search, inquiry (e.g., looking up in a table, database, or another data structure), ascertaining, etc.

[0310] Additionally, "determining" may be considered to be "determining" receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), etc.

[0311] Furthermore, "determination" may be considered to be "determining" resolving, selecting, choosing, establishing, comparing, etc. In other words, "determination" may be considered to be "determining" some kind of action. In the present disclosure, "determination" may be read interchangeably with the above-mentioned actions.

[0312] Furthermore, in this disclosure, "determine / determining" may be interchangeably read as "assume / assuming," "expect / expecting," "consider / considering," etc. Furthermore, in this disclosure, "does not expect to do..." may be interchangeably read as "assumes not to do...."

[0313] In the present disclosure, "expect" may be interchangeably read as "be expected." For example, "expect(s) ..." ("..." may be expressed, for example, as a that clause, a to-infinitive, etc.) may be interchangeably read as "be expected ...." "does not expect ..." may be interchangeably read as "be not expected ...." Furthermore, "An apparatus A is not expected ..." may be interchangeably read as "an apparatus B other than apparatus A does not expect ... from apparatus A" (e.g., if apparatus A is a UE, apparatus B may be a base station).

[0314] The "maximum transmit power" in this disclosure may mean the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0315] As used in this disclosure, the terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access."

[0316] In this disclosure, when two elements are connected, they may be considered to be "connected" or "coupled" to one another using one or more wires, cables, printed electrical connections, etc., as well as using electromagnetic energy having wavelengths in the radio frequency range, microwave range, light (both visible and invisible) range, etc., as some non-limiting and non-exhaustive examples.

[0317] In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0318] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0319] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0320] In the present disclosure, terms such as "less than or equal to," "less than," "greater than," "more than," "equal to," etc. may be interchangeable. Furthermore, in the present disclosure, terms meaning "good," "bad," "big," "small," "high," "low," "fast," "slow," "wide," "narrow," etc. may be interchangeable, not limited to the positive, comparative, and superlative. Furthermore, in the present disclosure, terms meaning "good," "bad," "big," "small," "high," "low," "fast," "slow," "wide," "narrow," etc. may be interchangeable, not limited to the positive, comparative, and superlative, as expressions with "i-th" (i is an arbitrary integer) attached (for example, "highest" may be interchangeable with "i-th highest").

[0321] In this disclosure, the terms "of," "for," "regarding," "related to," "associated with," etc. may be read interchangeably.

[0322] In the present disclosure, terms such as "when A, B," "if A, (then) B," "B upon A," "B in response to A," "B based on A," "B during / while A," "B before A," "B at (the same time as) / on A," "B after A," "B since A," and "B until A" may be interchangeable. Note that A, B, and the like herein may be replaced with appropriate expressions such as nouns, gerunds, and regular sentences, depending on the context. Note that the time difference between A and B may be approximately zero (immediately after or immediately before). A time offset may also be applied to the time at which A occurs. For example, "A" may be interchangeable with "before / after a time offset at which A occurs." The time offset (eg, one or more symbols / slots) may be predefined or may be specified by the UE based on signaled information.

[0323] In the present disclosure, timing, time, duration, time instance, any time unit (e.g., slot, subslot, symbol, subframe), period, occasion, resource, etc. may be read interchangeably.

[0324] Although the invention according to the present disclosure has been described in detail above, it is clear to those skilled in the art that the invention according to the present disclosure is not limited to the embodiments described in the present disclosure. The description of the present disclosure is for illustrative purposes only and does not impose any limiting meaning on the invention according to the present disclosure.

Claims

1. A terminal comprising: a receiving unit that receives information related to at least one of associations between a plurality of Sounding Reference Signal (SRS) resources and associations between a plurality of SRS resource sets; and a control unit that determines a plurality of SRS resources to which the same transmission beam or the same spatial domain filter or the same Transmission Configuration Indicator (TCI) state is applied based on at least one of the associations between the SRS resources and the associations between the SRS resource sets.

2. The terminal according to claim 1, wherein the control unit applies the same transmission beam or the same spatial domain filter or the same TCI state to at least one of a plurality of SRS resources included in the same SRS resource set and a plurality of SRS resources included in different SRS resource sets.

3. The terminal according to claim 1, wherein the control unit applies the same transmission beam or the same spatial domain filter or the same TCI state to an SRS resource to which repeated transmission is applied.

4. The terminal according to claim 1, wherein when repetition is applied to the SRS resource, frequency hopping is applied in units of SRS resources that are repeatedly transmitted.

5. A wireless communication method for a terminal, comprising: receiving information related to at least one of associations between a plurality of Sounding Reference Signal (SRS) resources and associations between a plurality of SRS resource sets; and determining a plurality of SRS resources to which the same transmission beam or the same spatial domain filter or the same Transmission Configuration Indicator (TCI) state is applied based on at least one of the associations between the SRS resources and the associations between the SRS resource sets.

6. A base station comprising: a transmitting unit that transmits information related to at least one of an association between a plurality of Sounding Reference Signal (SRS) resources and an association between a plurality of SRS resource sets; and a control unit that controls transmission instructions for a plurality of SRS resources to apply the same transmission beam or the same spatial domain filter or the same Transmission Configuration Indicator (TCI) state based on the information related to at least one of the association between the SRS resources and the association between the SRS resource sets.

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