Terminal, wireless communication method, and base station

Abstract

A terminal according to an embodiment of the present disclosure includes a reception unit that receives a first setting that is common among a plurality of operators, and a control unit that controls reception of a physical downlink control channel (PDCCH) corresponding to a specific function on the basis of the first setting. According to an embodiment of the present disclosure, it is possible to appropriately determine and use a shared resource.

Description

Technical Field

[0001] This disclosure relates to terminals, wireless communication methods, and base stations in next-generation mobile communication systems. Background Technology

[0002] In Universal Mobile Telecommunications System (UMTS) networks, Long Term Evolution (LTE) was standardized with the aim of further increasing data rates and reducing latency (Non-Patent Document 1). Furthermore, LTE-Advanced (3GPP Rel. 10-14) was standardized with the aim of further increasing capacity and improving the height of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9).

[0003] The study also explored subsequent systems to LTE (e.g., also known as the 5th generation mobile communication system (5G), 5G+, the 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.).

[0004] Existing technical documents

[0005] Non-patent literature

[0006] Non-patent document 1: 3GPP TS 36.300 V8.12.0 “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2 (Release 8)”, April 2010 Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] Research is underway on future wireless communication systems aimed at maximizing the utilization of frequency bands (existing bands and new high-frequency bands), and enabling multiple operators to share sites / resources.

[0009] However, how to receive common signals across multiple operators when resources are shared has not been adequately studied. Without sufficient research, flexible communication operations for each operator cannot be implemented, raising concerns about hindering improvements in communication quality.

[0010] Therefore, one of the purposes of this disclosure is to provide terminals, wireless communication methods, and base stations that can appropriately determine and utilize shared resources.

[0011] Methods for solving problems

[0012] One aspect of the terminal disclosed herein includes: a receiving unit that receives a first setting common to multiple operators; and a control unit that, based on the first setting, controls the reception of a physical downlink control channel (PDCCH) corresponding to a specific function.

[0013] Invention Effects

[0014] According to one method of this disclosure, shared resources can be appropriately determined and utilized. Attached Figure Description

[0015] Figures 1A-1D This is a diagram illustrating an example of a sharing scenario.

[0016] Figures 2A-2C This is a diagram representing an example of shared resources.

[0017] Figure 3 This is a diagram illustrating an example of PDCCH reception according to Implementation Method 1a.

[0018] Figure 4 This is a diagram illustrating an example of PDCCH reception according to embodiment 2a.

[0019] Figure 5 This is a diagram illustrating an example of the schematic structure of a wireless communication system according to one embodiment.

[0020] Figure 6 This is a diagram illustrating an example of the structure of a base station according to one embodiment.

[0021] Figure 7 This is a diagram illustrating an example of the structure of a user terminal according to one embodiment.

[0022] Figure 8 This is a diagram illustrating an example of the hardware structure of a base station and a user terminal according to one embodiment.

[0023] Figure 9 This is a diagram illustrating an example of a vehicle according to one embodiment. Detailed Implementation

[0024] (Sharing among multiple MNOs)

[0025] Several key requirements are being discussed in preparation for 6G.

[0026] - Ultra wideband communication.

[0027] - For communications that are essential to accomplishing business tasks (mission critical communication).

[0028] - Ultra massive connection.

[0029] - Universal coverage.

[0030] - Intelligent connection.

[0031] - Ubiquitous sensing.

[0032] - New application scenarios.

[0033] In addition to the objectives mentioned above, the following new concepts can also be set as objectives.

[0034] - Scalable (e.g., further guaranteeing future availability).

[0035] - Customizable (e.g., making it easier to run).

[0036] - Sustainable (e.g., reducing costs, making it more robust).

[0037] To reduce base station configuration (deployment) costs, the following factors shared among mobile network operators (MNOs) can also be studied for operation in licensed spectrum.

[0038] - Existing sharing from LTE (equipment sharing). Core network sharing (gateway core network, GWCN, multi-operator core network, MOCN). Different operators share cells, enabling the assignment of different PLMN IDs to different operators.

[0039] - RAN sharing (multi-operator RAN, MORAN). Different operators share base station hardware, enabling different cells to be assigned to different operators.

[0040] - Site sharing. Different operators can share sites, allowing different operators to be provided with different base stations.

[0041] - Spectrum Sharing.

[0042] Figures 1A-1D This is a diagram illustrating an example of a sharing scenario.

[0043] Figure 1A An example of site sharing is shown. For example... Figure 1A As shown, in site sharing, multiple operators share antennas and sites. On the other hand, multiple operators operate independently for the service platform, Home Subscriber Server (HSS) / Home Location Register (HLR), Core Network (CN) Packet Switching (PS), base stations, and cells / frequencies.

[0044] Figure 1B An example of a multi-operator RAN (MORAN) is shown. Figure 3 As shown in B, in MORAN, multiple operators share a portion of the base station (e.g., base station hardware) in addition to antennas and sites. On the other hand, multiple operators operate independently for the service platform, HSS / HLR, CN PS, other parts of the base station (e.g., base station software), and cells / frequency.

[0045] Figure 1C An example of a Multi Operator Core Network (MOCN) is shown. Figure 1CAs shown, in MOCN, multiple operators share base stations and cells / frequency. On the other hand, the service platform, HSS / HLR, and CN PS are independent for each operator.

[0046] Figure 1D An example of a Gateway Core Network (GWCN) is shown. Figure 1D As shown, within a GWCN, multiple operators share CN PS, base stations, and cells / frequency. On the other hand, the service platform, HSS / HLR, are independent for each operator.

[0047] For example, in MOCN / GWCN, since multiple operators share cells, it is desirable to be able to change settings for each operator (e.g., per PLMN ID associated with the Public Land Mobile Network (PLMN)).

[0048] (analyze)

[0049] In the existing 5G NR, the PDCCH settings (PDCCH-ConfigCommon) contained in the System Information Block (SIB1) are used to configure various search spaces (SS) / SS sets.

[0050] For example, searchSpaceSIB1 or searchSpaceZero within the PDCCH configuration (PDCCH-ConfigCommon) is configured to receive the common search space set (Type0-PDCCH CSS set) of the PCell in the master cellgroup, which is used to receive DCIs with CRCs scrambled via SI (System Information) - RNTI (Radio Network Temporary Identifier).

[0051] In addition, for example, the common search space set (Type0A-PDCCH CSS set) of the PCell in the primary cell group is configured to receive DCIs with CRCs scrambled by SI-RNTI via searchSpaceOtherSystemInformation in the PDCCH configuration (PDCCH-ConfigCommon).

[0052] In addition, for example, the ra-SearchSpace within the PDCCH configuration (PDCCH-ConfigCommon) is configured to receive the common search space set (Type1-PDCCH CSS set) of the PCell of the DCI accompanied by CRC scrambled via RA (Random Access)-RNTI, MsgB (Message B)-RNTI, or TC (Temporary Cell)-RNTI.

[0053] In addition, for example, the pagingSearchSpace within the PDCCH configuration (PDCCH-ConfigCommon) is configured to receive the common search space set (Type2-PDCCH CSS set) of the PCell in the primary cell group for receiving DCIs with CRCs scrambled via P (paging)-RNTI.

[0054] Furthermore, as mentioned above, research on how to share base station equipment / resources among multiple operators is still insufficient. For example, regarding shared frequency resources, the scenario where each operator's resources are time-division multiplexed (TDM) should be considered (see [reference]). Figure 2A ), the case of being frequency division multiplexed (FDM) (see Figure 2B ), and the case of being both TDM and FDM (also known as flexible TDM / FDM, see reference). Figure 2C ).

[0055] However, in the case of shared frequency resources, there are concerns about reduced frequency utilization efficiency and network-side energy saving efficiency when control is implemented to make time / frequency resources orthogonal for each operator.

[0056] Furthermore, research is underway on the use of shared frequency resources, not only during initial access but also after RRC connection establishment (e.g., for PDCCH settings) for multiple operators' common signals. However, research on the operation of terminals (User terminals, User Equipment (UE)) / base stations (Networks (NW)) related to such shared signals between multiple operators is still insufficient.

[0057] In cases like this, if research on the use of shared signals among multiple operators is insufficient, there are concerns that shared resources cannot be properly utilized and that improvements in communication quality may be suppressed.

[0058] Therefore, the inventors of this invention conceived of a method for using shared resources based on efficient deployment / flexible frequency utilization through resource sharing.

[0059] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods involved in each embodiment can be applied individually or in combination.

[0060] In this disclosure, "A / B" and "at least one of A and B" may be rewritten as each other. In addition, in this disclosure, "A / B / C" may also mean "at least one of A, B and C".

[0061] In this disclosure, terms such as notification, activation, deactivation, indication (or indication), selection, configuration, update, and determination can be overridden. Similarly, terms such as support, control, ability to control, operation, and ability to operate can also be overridden.

[0062] In this disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher-level parameters, fields, Information Elements (IE), settings, etc., can also be modified interchangeably. In this disclosure, Medium Access Control (MAC) elements (MAC ControlElement (CE)), update commands, activation / deactivation commands, etc., can also be modified interchangeably.

[0063] In this disclosure, higher-level signaling may be, for example, any one or a combination of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc.

[0064] In this disclosure, MAC signaling may also use, for example, a MAC Control Element (MACCE) or a MAC Protocol Data Unit (PDU). Broadcast information may also be, for example, a Master Information Block (MIB), a System Information Block (SIB), Minimum System Information (Remaining Minimum System Information (RMSI)), or Other System Information (OSI).

[0065] In this disclosure, physical layer signaling may also be, for example, downlink control information (DCI), uplink control information (UCI), etc.

[0066] In this disclosure, a b The expressions a, b, and b appended to the right of a can also be rewritten. In this disclosure, a c The expressions a^c and a with c appended to the right of a can also be rewritten interchangeably. In this disclosure, a b c The expressions a_b^c, a with b appended to the lower right and c appended to the upper right of a, can also be rewritten. In this disclosure, ceil(x), the ceiling function, and the floor function can also be rewritten. In this disclosure, floor(x), the floor function, and the floor function can also be rewritten. In this disclosure, sqrt(x) and the square root (root) can also be rewritten. In this disclosure, x... ~ It can be represented by appending a ~ to x, or read as a tilde (x). In this disclosure, x – It can be represented by adding a hyphen (-) to x, or it can be called an x ​​bar.

[0067] In this disclosure, MNO, operator, PLMN, operator policy, settings per operator, and settings per operator can also be rewritten. In this disclosure, MNO, NW, base station, central unit (CU), distributed unit (DU), radio unit (RU), and TRP can also be rewritten.

[0068] In this disclosure, specific IDs, PLMN IDs, PLMN-related IDs, operator-related IDs, PLMNs, more than one piece of information identified through a PLMN, PLMN sets, and IDs / information / parameters used to identify operators / MNOs can also be rewritten.

[0069] In this disclosure, the system information (SI), a portion of the system information, partial system information, MIB, SIB, SIB used for initial access, SIB1, SIB X (x is an arbitrary number), downlink shared channel carrying system information, and PDSCH carrying system information can also be rewritten.

[0070] (Wireless communication method)

[0071] In this disclosure, for convenience, a cell that shares frequency resources among multiple operators will be referred to as "cell x", but this does not represent a specific name for the cell.

[0072] A UE connected to cell x can also use a specific method to receive a common DL signal (e.g., PDCCH) shared by (multiple) UEs. The UE can also perform operations corresponding to the PDCCH based on it.

[0073] The embodiments described below can also be applied based on the assumption that the UE wants to connect to a certain operator (corresponding cell) / PLMN. In this disclosure, for convenience, the operator / PLMN is referred to as "PLMN#A".

[0074] In this disclosure, "(multiple) inter-operator common" can mean either without distinction of operators or can be used by the UE regardless of the operator.

[0075] Reference signals (e.g., DMRS / CSI-RS / TRS / PTRS) may also be included in the received DL channels / signals.

[0076] The DL channel / signal in this disclosure can also be rewritten as any DL channel / signal (e.g., PDCCH / PDSCH), and the UL channel / signal in this disclosure can also be rewritten as any UL channel / signal (e.g., PUCCH / PUSCH).

[0077] In this disclosure, "(multiple) UE common signals" can also refer to signals common among multiple UEs or signals set based on common resources. In this disclosure, "(multiple) UE common signals" can be based on whether they are common among operators, or it can be unrelated to whether they are common among operators.

[0078] In this disclosure, the terms PLMN-common, PLMN-dedicated, UE-common, and UE-dedicated may also refer to PLMN-common, PLMN-dedicated, UE-common, and UE-dedicated settings, resources, and signals, respectively.

[0079] In this disclosure, PLMN common settings / resources / signals may also mean settings / resources / signals that are independent of PLMN IDs (not associated with PLMN IDs), or settings / resources / signals that are associated with multiple PLMN IDs.

[0080] In this disclosure, PLMN public settings / resources / signals may also refer to settings / resources / signals associated with a PLMN ID.

[0081] In various embodiments of this disclosure, the UE common PDCCH may refer to a UE common PDCCH for a specific function / operation, or it may be a PDCCH for transmitting common (group-common) DCI to multiple UEs.

[0082] This specific function / operation could also be, for example, at least one of SIB reception, PDCCH reception for random access / RACH transmission, paging reception, or group-common PDCCH reception.

[0083] The various embodiments disclosed herein can also be applied to situations where the UE is not connected to cell x and is in a registered state in the NW (e.g., when paging is being received).

[0084] In this disclosure, the term "resource" can be interchanged with "occasion," "time-domain resource," "frequency-domain resource," "time-domain / frequency-domain resource," and "resource in any domain."

[0085] In this disclosure, the UE common PDCCH, UE common settings, UE common PDCCH settings, PDCCH-ConfigCommon, common PDCCH, group-common PDCCH, and common PDCCH for specific functions / operations can also be rewritten to each other.

[0086] The group common PDCCH can also be at least one of the following: PDCCH for notification of TDD setting / slot format, PDCCH for notification of channel occupancy time (COT) duration / available resource block set, PDCCH for notification of search space set group, PDCCH for notification of preemption, PDCCH for notification of UL transmit power control (TPC) command, PDCCH for notification of UL cancellation, PDCCH for notification related to UE power saving / discontinuous reception (DRX) / SCell dormancy, PDCCH for notification of paging early indication, PDCCH for notification related to beam / time resources of network-controlled repeater (NCR), and PDCCH for notification related to discontinuous transmission (DTX) / DRX of cell. Group public PDCCH can also refer to a PDCCH that is received in the public search space.

[0087] The settings for the common PDCCH for cell x and the common PDCCH for non-cell x can be specified / set as different parameters (RRC parameters) or as common parameters. When the settings for the common PDCCH for cell x and the common PDCCH for non-cell x are specified / set as different parameters (RRC parameters), the settings for the common PDCCH for cell x and the common PDCCH for non-cell x can also refer to the common parameters.

[0088] In this disclosure, PDCCH, SS, SS set, public SS set, CORESET, PDCCH occasion, and DCI can also be rewritten.

[0089] According to various embodiments of this disclosure, even in the case of a cell where frequency resources are shared among multiple operators, it is possible to efficiently transmit and receive public PDCCHs within that cell or flexibly on a per-operator basis.

[0090] <First Implementation Method>

[0091] The first implementation relates to UE operation based on UE common settings involved in PDCCH.

[0092] The UE can also use common settings across multiple operators to receive the PDCCH for the UE common settings involved in the PDCCH.

[0093] Implementation Method 1a

[0094] The UE can also receive settings common to multiple operators during initial access (hereinafter, it may also be referred to as the first settings).

[0095] If the first setting is received during initial access, the UE can also apply the first setting to a specific function / operation common PDCCH (see reference). Figure 3 ).

[0096] If the first setting is not received during the initial access, the UE can also determine that the following implementation method 1b or implementation method 1c is being applied.

[0097] The first setting may also be received in at least one of a specific PDCCH / CORESET (e.g., a PDCCH / CORESET (PDCCH0 / CORESET0) for monitoring system information), system information (e.g., SIB1 / other SIB (SIB x)), message 2 PDSCH (RAR), message 4 PDCCH, and message 4 PDSCH.

[0098] The UE can also use multiple DL signals to receive the first setting.

[0099] When a first setting is received using multiple DL signals, the UE can also determine / presume to prioritize the application of the specific setting received.

[0100] This specific reception could be, for example, a later (latest) reception or an earlier (initial) reception. In the case that the specific reception is an earlier (initial) reception, the update period / timer can also be specified / set.

[0101] According to implementation method 1a, the settings in the initial access can be utilized in the reception of the public PDCCH, which can reduce signaling overhead.

[0102] Implementation Method 1b

[0103] The UE can also receive the first settings after completing the initial access.

[0104] After completing the initial access and receiving the first setting, the UE can also apply the first setting to the public PDCCH used for specific functions / operations.

[0105] The UE may also receive the first settings during initial access. In this case, the UE may preferentially apply the first settings received during initial access or the first settings received after initial access is completed.

[0106] The UE can also use multiple DL signals to receive the first setting.

[0107] When a first setting is received using multiple DL signals, the UE can also determine / presume to prioritize the application of the specific setting received.

[0108] This specific reception could be, for example, a later (latest) reception or an earlier (initial) reception. In the case that the specific reception is an earlier (initial) reception, the update period / timer can also be specified / set.

[0109] According to implementation method 1b, the settings after initial access can be utilized in the reception of the public PDCCH, enabling more flexible PDCCH settings.

[0110] Implementation Method 1c

[0111] The UE may also choose not to receive the first setting.

[0112] If the UE does not receive the first setting, the UE can also determine that it will not receive the corresponding UE public PDCCH for a specific function / operation.

[0113] Even if the UE does not receive the first setting, the UE can also receive the corresponding UE public PDCCH based on the PLMN (PLMN#A) specific / UE public settings for specific functions / operations.

[0114] Even if the UE does not receive the first setting, the UE can also receive the UE public PDCCH for a specific function / operation by applying / utilizing the settings related to the public PDCCH for other functions / operations.

[0115] According to implementation method 1c, even if the UE does not receive the first setting related to the common PDCCH for a specific function / operation, the UE operation can still be appropriately specified.

[0116] Implementation Method 1d

[0117] The UE can also be conceived as having specific resources (time / frequency resources) based on the first-defined PDCCH.

[0118] For example, the UE may also envision that the PDCCH based on the first setting is a specific PLMN-specific resource (time / frequency resource). For example, the UE may also envision that the PDCCH based on the first setting can be transmitted in a specific PLMN-specific resource (time / frequency resource).

[0119] For example, the UE connected to / corresponding to PLMN#A can also monitor / receive PDCCH based on the first setting in the resources (time / frequency resources) corresponding to that PLMN (PLMN#A).

[0120] For example, a UE connected to / corresponding to PLMN#A can also monitor / receive PDCCH based on a first setting in resources (time / frequency resources) corresponding to other PLMNs (e.g., PLMN#B).

[0121] According to implementation method 1d, resources for monitoring the public PDCCH can be configured independently of the PLMN, making more efficient allocation of public PDCCH resources possible.

[0122] Implementation Method 1e

[0123] The UE can also be conceived as having specific resources (time / frequency resources) based on the first-defined PDCCH.

[0124] For example, the UE may also envision that the PDCCH resources based on the first setting are common resources (time / frequency resources) among multiple operators / PLMNs. For example, the UE may also envision that the PDCCH based on the first setting can be transmitted in common resources (time / frequency resources) among multiple operators / PLMNs.

[0125] For example, a UE connected to or corresponding to PLMN#A can also monitor / receive PDCCH based on a first setting in the resources (time / frequency resources) specifically corresponding to PLMN.

[0126] For example, a UE connected to / corresponding to PLMN#A can also monitor / receive PDCCH based on a first setting in the resources corresponding to that PLMN (PLMN#A) (time / frequency resources) and in the resources (time / frequency resources) shared among multiple operators / PLMNs.

[0127] For example, a UE connected to / corresponding to PLMN#A can also monitor / receive PDCCH based on a first setting in resources corresponding to other PLMNs (e.g., PLMN#B) and in resources common to multiple operators / PLMNs (time / frequency resources).

[0128] For example, the UE connected to / corresponding to PLMN#A can also monitor / receive PDCCH based on the first setting in the resources (time / frequency resources) corresponding to that PLMN (PLMN#A) and the resources (time / frequency resources) corresponding to other PLMNs (e.g., PLMN#B).

[0129] For example, a UE connected to / corresponding to PLMN#A can also monitor / receive PDCCH based on a first setting in the resources corresponding to that PLMN (PLMN#A), the resources corresponding to other PLMNs (e.g., PLMN#B) (time / frequency resources), and the resources (time / frequency resources) shared among multiple operators / PLMNs.

[0130] According to implementation method 1e, resources for monitoring the public PDCCH can be configured independently of the PLMN, making more efficient allocation of public PDCCH resources possible.

[0131] Implementation Method 1x

[0132] In the same resources as the PDCCH based on the first setting, it is also possible not to receive at least one of the PDCCH based on the PLMN-specific / UE-common setting and the PDCCH based on the PLMN-specific / UE-specific setting.

[0133] In the same resources as the PDCCH based on the first setting, the UE may also choose not to receive at least one of the PDCCH based on the PLMN-specific / UE-common setting and the PDCCH based on the PLMN-specific / UE-specific setting (or may skip receiving).

[0134] In the same resources as the PDCCH based on the first setting, the UE may also assume / determine that at least one of the PDCCH based on the PLMN-specific / UE-common setting and the PDCCH based on the PLMN-specific / UE-specific setting has not been transmitted.

[0135] According to implementation method 1x, it is possible to ensure efficient utilization of shared resources in cell x based on the resources of the PDCCH that are set up in common among multiple operators.

[0136] Implementation Method 1f

[0137] For a specific function / operation public PDCCH, if a PDCCH based on a first setting is received, the UE can also determine that it will not receive other PDCCHs using that first setting.

[0138] The other function / operation could be, for example, the transmission or reception of data / control information, or the transmission of DCI scrambled by CRC via C (cell)-RNTI.

[0139] For a specific function / operation public PDCCH, when a PDCCH based on PLMN-specific (e.g., PLMN#A-specific) / UE-general settings is received, the UE can also determine that it will receive other function / operation PDCCHs using that setting.

[0140] According to implementation method 1f, it is possible to ensure efficient utilization of shared resources in cell x based on the resources of the public PDCCH that are set up in a common manner among multiple operators.

[0141] Implementation Method 1g

[0142] For UE common settings for PDCCH, the following situations / states may also occur: monitoring of PDCCH based on the first setting (common PDCCH) (also known as first monitoring) and monitoring of PDCCH based on PLMN specific settings (also known as second monitoring) need to exceed the monitoring capability during a specific period / timing (e.g., (a specific number / a specific length) of time slot / symbol / subframe).

[0143] This specific period / timing can be predefined by specifications, set / instructed to the UE using higher-level signaling (RRC / MACCE) / DCI, or determined based on UE capability information.

[0144] Multiple periods / times can also be specified / set / indicated. A mode / UE capability corresponding to a period / time can also be specified, and the UE can determine the switching between multiple modes.

[0145] In this situation, the UE may also prioritize performing the first surveillance (or the second surveillance). In this situation, the UE may also determine that it will not perform part / all of the second surveillance (or the first surveillance).

[0146] Surveillance capabilities can also be associated with, for example, the size of the DCI transmitted via PDCCH, the number of control channel elements (CCE), and at least one of the PDCCH candidates (number).

[0147] In addition, the UE can also be assumed that the above situation will not occur.

[0148] According to implementation method 1g, even in cases where monitoring of the PDCCH exceeds the monitoring capability during a certain period / time, the UE operation can be appropriately specified.

[0149] Implementation Method 1h

[0150] The UE can also assume / determine that the UE's common settings for the PDCCH, based on the first setting (common PDCCH), are in a QCL relationship with a specific signal.

[0151] The UE can also determine that, for the UE common settings for PDCCH based on the first setting (common PDCCH) and specific signals, the same beam is used for reception operation.

[0152] The specific signal may also be a PLMN-common signal associated with the initial access of cell x (e.g., a specific PDCCH / CORESET (e.g., a PDCCH / CORESET for monitoring system information (PDCCH0 / CORESET0)), system information (e.g., SIB1 / other SIB (SIB x)), message 2 PDSCH (RAR), message 4 PDCCH, and at least one of message 4 PDSCH).

[0153] According to embodiment 1h, by setting the beam / TCI state / QCL assumption for the PDCCH based on the first setting to be the same as the beam / TCI state / QCL assumption for a specific signal, it is possible to reduce the signaling overhead involved in beam indication.

[0154] <Second Implementation Method>

[0155] The second implementation involves UE operation based on PLMN-specific / UE common settings related to PDCCH.

[0156] The UE can also use PLMN-specific ( / UE common) settings (also known as second settings) to receive the PDCCH, based on the UE common settings involved in the PDCCH.

[0157] Implementation Method 2a

[0158] The UE can also receive the public PDCCH based on specific settings other than the second setting.

[0159] The UE may also receive at least one of the first setting and the second setting.

[0160] For a specific function / operation of the public PDCCH, without receiving a second setting, the UE can also apply the first setting of that specific function / operation, or a function / operation different from that specific function / operation, to the reception of the public PDCCH (see reference). Figure 4 ).

[0161] The application of this first setting can also be applied to at least one method described in the first embodiment above.

[0162] According to implementation 2a, the public PDCCH can be properly received even without receiving PLMN-specific ( / UE public) settings associated with the public PDCCH.

[0163] Implementation Method 2b

[0164] The UE can also receive the public PDCCH based on specific settings other than the second setting.

[0165] The UE can also receive at least one of the first setting, the second setting, and the UE-specific setting.

[0166] For a specific function / operation of the public PDCCH, the UE can also apply UE-specific settings to the reception of the public PDCCH without receiving a second setting.

[0167] The UE-specific settings may be, for example, at least one of the settings related to the PDCCH for transmitting and receiving data / control information, and the settings related to the PDCCH for transmitting DCI scrambled by CRC via C-RNTI.

[0168] According to implementation 2b, the public PDCCH can be properly received even without receiving PLMN-specific ( / UE public) settings associated with the public PDCCH.

[0169] Implementation Method 2c

[0170] The UE may also assume / determine that it will preferentially apply either of the above-described implementation methods 2a and 2b.

[0171] In addition, the mode / UE capabilities corresponding to the above-described implementation methods 2a and 2b can also be specified.

[0172] The UE can also determine which of the above implementation methods 2a and 2b to apply based on the settings / instructions for using higher-layer signaling (RRC / MAC CE) / DCI and the corresponding UE capabilities.

[0173] According to implementation method 2c, even without receiving PLMN-specific ( / UE public) settings related to the public PDCCH, it is possible to receive the public PDCCH more flexibly and appropriately.

[0174] Implementation Method 2d

[0175] The UE can also be conceived as having specific resources (time / frequency resources) based on the second-defined PDCCH.

[0176] For example, the UE may also envision that the PDCCH based on the second setting is a specific PLMN-specific resource (time / frequency resource). For example, the UE may also envision that the PDCCH based on the second setting can be transmitted in a specific PLMN-specific resource (time / frequency resource).

[0177] The UE may also assume / determine that it will not receive PDCCH based on the second setting in other PLMN-specific resources (time / frequency resources).

[0178] According to implementation method 2d, it is possible to ensure efficient utilization of shared resources in cell x based on the second set PDCCH resources for each PLMN.

[0179] Implementation Method 2e

[0180] At least some of the information / parameters / settings included in the second setting may also be information / parameters / settings that are common to multiple operators.

[0181] The UE may also assume / determine that at least some of the information / parameters / settings included in the second setting are information / parameters / settings that are common to multiple operators.

[0182] For example, resources common to multiple operators (e.g., frequency resources (e.g., physical resource blocks (PRBs))) can also be configured for the UE. In addition, information / parameters related to PLMN-specific resources (e.g., offsets) can also be configured for the UE.

[0183] At this time, the UE can also receive the common PDCCH based on the resource settings common to multiple operators and the information / parameter settings related to PLMN-specific resources.

[0184] For example, the UE can also determine the frequency resources for monitoring the public PDCCH based on the value obtained by adding / subtracting / multiplying / dividing the starting PRB (index) that is notified through the resource settings common to multiple operators and the information / parameters (e.g., PRB offset) related to the PLMN-specific resources.

[0185] Additionally, while this example describes the situation regarding frequency resources, the same principle applies to time resources and time / frequency resources.

[0186] According to implementation method 2e, by setting at least a portion of the information / parameters / settings included in the second setting as information / parameters / settings that are common to multiple operators, it is possible to reduce the signaling overhead for the UE.

[0187] <Variation Example>

[0188] Regarding the various embodiments of this disclosure, different implementation methods can be applied according to each function / operation corresponding to the PDCCH.

[0189] <Supplement>

[0190] [Notification of information to the UE]

[0191] The notification of any information from the Network (NW) (e.g., Base Station (BS)) to the UE in the above-described embodiments (in other words, the reception of any information from the BS in the UE) can also be performed using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PDCCH, PDSCH, reference signals), or combinations thereof.

[0192] In cases where the aforementioned notification is made via MAC CE, the MAC CE can also be identified by including a new Logical Channel ID (LCID) in the MAC subheader, which is not specified in existing standards.

[0193] When the above notification is made through a DCI, it can also be made through specific fields of the DCI, the Radio Network Temporary Identifier (RNTI) used in the scrambling of the Cyclic Redundancy Check (CRC) bits assigned to the DCI, the format of the DCI, etc.

[0194] Furthermore, the notification of any information to the UE in the above embodiments can also be performed periodically, semi-persistently, or non-periodically.

[0195] [Notification from UE]

[0196] The notification of any information from the UE (to the NW) in the above embodiments (in other words, the transmission / reporting of any information in the UE to the BS) can also be performed using physical layer signaling (e.g., UCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PUCCH, PUSCH, PRACH, reference signals), or combinations thereof.

[0197] In cases where the aforementioned notification is made via a MAC CE, the MAC CE can also be identified by including a new LCID, which is not specified in the existing standard, in the MAC subheader.

[0198] If the above notification is sent via UCI, PUCCH or PUSCH can also be used.

[0199] Furthermore, the notification of any information from the UE in the above embodiments can also be performed periodically, semi-persistently, or non-periodically.

[0200] [Regarding the application of each implementation method]

[0201] At least one of the above-described implementation methods can also be applied under certain conditions. These specific conditions can be specified in the standard or notified to the UE / BS using higher-layer signaling / physical layer signaling.

[0202] The specific conditions mentioned above can also represent at least one of the following:

[0203] - Operation is performed in FR3. FR3 can also be all or part of the 7125-24250 MHz range.

[0204] - Operations are performed in FRx. FRx can also be all or part of a range higher than 71 GHz.

[0205] At least one of the above-described implementation methods may also be applied only to UEs that have reported a specific UE capability or UEs that support that specific UE capability.

[0206] This specific UE capability can also represent at least one of the following:

[0207] - Supports specific processing / operation / control / information related to at least one of the above embodiments.

[0208] - Supports connections to cell x.

[0209] - Supports receiving PDCCH based on PLMN public / PLMN specific settings.

[0210] Furthermore, the aforementioned specific UE capabilities can be applied across all frequencies (commonly regardless of frequency), or they can be the capability of each frequency (e.g., one or a combination of cells, bands, band combinations, BWPs, component carriers, etc.), or the capability of each frequency range (e.g., Frequency Range 1 (FR1), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or the capability of each subcarrier spacing (SCS), or the capability of each feature set (FS) or each component carrier feature set (FSPC).

[0211] Furthermore, the aforementioned specific UE capabilities can be either the ability to be applied across all duplex modes (commonly regardless of the duplex mode) or the capability for each duplex mode (e.g., Time Division Duplex (TDD) and Frequency Division Duplex (FDD)).

[0212] Furthermore, the aforementioned specific UE capabilities can be defined either as mandatory functions without UE capability signaling or as mandatory functions with UE capability signaling. Additionally, the aforementioned specific UE capabilities can be defined either as optional functions without UE capability signaling or as optional functions with UE capability signaling.

[0213] Furthermore, at least one of the above embodiments can also be applied when the UE is set / activated / triggered by specific information associated with the above embodiments (or performs the operations of the above embodiments) via higher-layer signaling / physical layer signaling. This specific information can also represent at least one of the following:

[0214] - Information indicating the operation of activating / deactivating the above implementation method.

[0215] - RRC parameters for a specific version (e.g., Rel.18 / 19 / 20 / 21). The RRC parameter can also have a name that appends "r18" / "r19" / "r20" / "r21" to the name of an existing RRC parameter.

[0216] Even if at least one of the above-mentioned specific UE capabilities is not supported, or if the above-mentioned specific information is not set, the UE may, for example, apply the operations of Rel.15 / 16 / 17 / 18 / 19.

[0217] (Postscript)

[0218] With respect to one embodiment of this disclosure, the following invention is noted.

[0219] [Postscript 1]

[0220] A terminal having:

[0221] The receiving unit receives a first setting common to multiple operators; and the control unit controls the reception of the physical downlink control channel (PDCCH) corresponding to a specific function based on the first setting.

[0222] [Postscript 2]

[0223] The terminal as described in Appendix 1, wherein,

[0224] The receiving unit receives the first setting during the initial access process or after the initial access process is completed.

[0225] [Postscript 3]

[0226] The terminal as described in Appendix 1 or Appendix 2, wherein,

[0227] The control unit is envisioned as having PDCCH resources that are specific to a particular operator or shared among multiple operators.

[0228] [Postscript 4]

[0229] The terminal as described in any one of Annexes 1 to 3, wherein,

[0230] Without receiving a carrier-specific second setting, the control unit controls the reception of the PDCCH based on the first setting.

[0231] (Wireless communication system)

[0232] The structure of a wireless communication system according to one embodiment of this disclosure will be described below. In this wireless communication system, communication is performed using any one or a combination of the wireless communication methods according to the above embodiments of this disclosure.

[0233] Figure 5 This is a diagram illustrating an example of the schematic structure of a wireless communication system according to one implementation. The wireless communication system 1 (which may also be referred to simply as System 1) may also be a system that uses Long Term Evolution (LTE) or 5th generation mobile communication system New Radio (5G NR) as standardized by the Third Generation Partnership Project (3GPP).

[0234] Furthermore, the wireless communication system 1 can also support dual connectivity between multiple radio access technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC can also 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.

[0235] In EN-DC, the LTE (E-UTRA) base station (eNB) is the Master Node (MN), and the NR base station (gNB) is the 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.

[0236] Wireless communication system 1 can also support dual connectivity between multiple base stations within the same RAT (e.g., MN and SN are dual connectivity between NR base stations (gNB) (NR-NR Dual Connectivity (NN-DC))).

[0237] The wireless communication system 1 may also include: a base station 11 forming a macro cell C1 with a relatively wide coverage area, and a base station 12 (12a-12c) configured within the macro cell C1 and forming a small cell C2 narrower than the macro cell C1. User terminals 20 may also be located within at least one cell. The configuration and number of each cell and user terminal 20 are not limited to the arrangement shown in the figure. Hereinafter, without distinguishing between base stations 11 and 12, they will be collectively referred to as base station 10.

[0238] User terminal 20 may also connect to at least one of multiple base stations 10. User terminal 20 may also utilize at least one of carrier aggregation (CA) using multiple component carriers (CC) and dual connectivity (DC).

[0239] Each CC can also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). Macro cell C1 can also be included in FR1, and small cell C2 can also be included in FR2. For example, FR1 can also be a frequency band below 6 GHz (sub-6 GHz), and FR2 can also be a frequency band above 24 GHz (above-24 GHz). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to these; for example, FR1 can also be equivalent to a frequency band higher than FR2.

[0240] In addition, in each CC, the user terminal 20 can also use at least one of Time Division Duplex (TDD) and Frequency Division Duplex (FDD) for communication.

[0241] Multiple base stations 10 can also be connected via wired (e.g., fiber optic cable based on the Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, base station 11, which is equivalent to a host station, can also be referred to as an Integrated Access Backhaul (IAB) donor, and base station 12, which is equivalent to a relay station, can also be referred to as an IAB node.

[0242] Base station 10 may also be connected to core network 30 via other base stations 10 or directly. Core network 30 may include at least one of Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.

[0243] The core network 30 may also include, for example, user plane functions (UPF), access and mobility management functions (AMF), session management functions (SMF), unified data management (UDM), application functions (AF), data network (DN), location management functions (LMF), and network functions (NF) such as operation, administration and maintenance (OAM). Alternatively, a single network node may provide multiple functions. Furthermore, communication with external networks (e.g., the Internet) can also be conducted via the DN.

[0244] User terminal 20 can also be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0245] In wireless communication system 1, wireless access methods based on Orthogonal Frequency Division Multiplexing (OFDM) can also be used. For example, in at least one of the downlink (DL) and uplink (UL) links, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), and Single Carrier Frequency Division Multiple Access (SC-FDMA) can also be used.

[0246] Wireless access methods can also be referred to as waveforms. In addition, in wireless communication system 1, other wireless access methods (e.g., other single-carrier transmission methods, other multi-carrier transmission methods) can also be applied in the wireless access methods of UL and DL.

[0247] As a downlink channel, the wireless communication system 1 can also use downlink shared channels (Physical Downlink Shared Channel (PDSCH)), broadcast channels (Physical Broadcast Channel (PBCH)), downlink control channels (Physical Downlink Control Channel (PDCCH)) and so on, which are shared among the user terminals 20.

[0248] In addition, as uplink channels, the wireless communication system 1 may also use uplink shared channels (Physical Uplink Shared Channel (PUSCH)), uplink control channels (Physical Uplink Control Channel (PUCCH)), random access channels (Physical Random Access Channel (PRACH)) and so on, which are shared by each user terminal 20.

[0249] User data, high-level control information, and System Information Blocks (SIBs) are transmitted via PDSCH. User data and high-level control information can also be transmitted via PUSCH. Furthermore, Master Information Blocks (MIBs) can be transmitted via PBCH.

[0250] Lower-layer control information can also be transmitted via PDCCH. This lower-layer control information may include, for example, downlink control information (DCI), which includes scheduling information for at least one of PDSCH and PUSCH.

[0251] Additionally, the DCI for scheduling PDSCH can also be called DL allocation, DL DCI, etc., and the DCI for scheduling PUSCH can also be called UL authorization, UL DCI, etc. Furthermore, PDSCH can be rewritten as DL data, and PUSCH can be rewritten as UL data.

[0252] In PDCCH detection, a Control Resource Set (CORESET) and a search space can also be utilized. A CORESET corresponds to the resources used to search for DCIs. The search space corresponds to the search area and search method for PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor CORESETs associated with a specific search space based on search space settings.

[0253] A search space can also correspond to a PDCCH candidate that matches one or more aggregation levels. One or more search spaces can also be referred to as a search space set. In addition, the terms "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" etc. disclosed herein can be rewritten interchangeably.

[0254] Uplink control information (UCI) can also be transmitted via PUCCH, including at least one of the following: Channel State Information (CSI), delivery confirmation information (e.g., also known as Hybrid Automatic Repeat reQuest ACK knowledgement (HARQ-ACK), ACK / NACK, etc.), and Scheduling Request (SR). Random access preambles used for establishing a connection with the cell can also be transmitted via PRACH.

[0255] In addition, in this disclosure, downlink, uplink, etc., may be described without the word "link". Furthermore, various channels may be described without the word "physical".

[0256] In wireless communication system 1, synchronization signals (SS) and downlink reference signals (DL-RS) can also be transmitted. In wireless communication system 1, as DL-RS, cell-specific reference signals (CRS), channel state information reference signals (CSI-RS), demodulation reference signals (DMRS), positioning reference signals (PRS), and phase tracking reference signals (PTRS) can also be transmitted.

[0257] Synchronization signals can be, for example, at least one of the primary synchronization signal (PSS) and the secondary synchronization signal (SSS). A signal block containing SS (PSS, SSS) and PBCH (and DMRS for PBCH) can also be called an SS / PBCH block, SS block (SSB), etc. In addition, SS, SSB, etc. can also be called reference signals.

[0258] Furthermore, in wireless communication system 1, the uplink reference signal (UL-RS) can also transmit measurement reference signals (sounding reference signals (SRS)) and demodulation reference signals (DMRS). Additionally, DMRS can also be referred to as user terminal-specific reference signals (UE-specific reference signals).

[0259] (Base station)

[0260] Figure 6 This diagram illustrates an example of the structure of a base station according to one embodiment. The base station 10 includes a control unit 110, a transmit / receive unit 120, a transmit / receive antenna 130, and a transmission path interface (transmission line interface) 140. Alternatively, the control unit 110, the transmit / receive unit 120, the transmit / receive antenna 130, and the transmission path interface 140 may each be provided in more than one manner.

[0261] Furthermore, while this example primarily illustrates the functional blocks of the characteristic portions of this embodiment, it is also conceivable that the base station 10 may also possess other functional blocks required for wireless communication. Some of the processing of each unit described below may also be omitted.

[0262] The control unit 110 performs overall control of the base station 10. The control unit 110 can be composed of a controller, control circuit, etc., which are described based on common knowledge in the art to which this disclosure pertains.

[0263] The control unit 110 can also control signal generation and scheduling (e.g., resource allocation, mapping). The control unit 110 can also control transmission, reception, and measurement using the transmit / receive unit 120, transmit / receive antenna 130, and transmission path interface 140. The control unit 110 can also generate data, control information, sequences, etc., to be transmitted as signals and forward them to the transmit / receive unit 120. The control unit 110 can also perform call processing (setting, releasing, etc.) of the communication channel, status management of the base station 10, and management of wireless resources.

[0264] The transmitting / receiving unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may also include a transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting / receiving unit 120 may be composed of a transmitter / receiver, RF circuitry, baseband circuitry, filters, phase shifters, measurement circuitry, transmitting / receiving circuitry, etc., as described based on common knowledge in the art to which this disclosure pertains.

[0265] The transmitting and receiving unit 120 can be configured as a single integrated transmitting and receiving unit, or it can be composed of a transmitting unit and a receiving unit. The transmitting unit can also be composed of a transmitting processing unit 1211 and an RF unit 122. The receiving unit can also be composed of a receiving processing unit 1212, an RF unit 122, and a measurement unit 123.

[0266] The transmitting and receiving antenna 130 can be constructed from an antenna, such as an array antenna, as described based on common knowledge in the art to which this disclosure pertains.

[0267] The transmitting / receiving unit 120 can also transmit the aforementioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 120 can also receive the aforementioned uplink channel, uplink reference signal, etc.

[0268] The transmitting and receiving unit 120 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc., to form at least one of the transmitting beam and the receiving beam.

[0269] The transmitting and receiving unit 120 (transmitting processing unit 1211) may, for example, perform processing at the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer (e.g., RLC retransmission control), and Medium Access Control (MAC) layer (e.g., HARQ retransmission control) on the data and control information obtained from the control unit 110, and generate a bit string to be transmitted.

[0270] The transmitting and receiving unit 120 (transmitting processing unit 1211) can also perform transmission processing such as channel coding (which may also include error correction coding), modulation, mapping, filter processing, Discrete Fourier Transform (DFT) processing (as needed), Inverse Fast Fourier Transform (IFFT) processing, precoding, and digital-to-analog conversion on the bit string to be transmitted, and output the baseband signal.

[0271] For baseband signals, the transmitting and receiving unit 120 (RF unit 122) can also perform modulation, filtering, amplification, etc., to the wireless frequency band, and transmit the wireless frequency band signals through the transmitting and receiving antenna 130.

[0272] On the other hand, the transmitting and receiving unit 120 (RF unit 122) can also amplify, filter, demodulate baseband signals, etc., for signals in the wireless frequency band that are received by the transmitting and receiving antenna 130.

[0273] For the acquired baseband signal, the transmitting and receiving unit 120 (receiving and processing unit 1212) can also perform receiving and processing such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to acquire user data.

[0274] The transmitting / receiving unit 120 (measurement unit 123) can also perform measurements related to the received signal. For example, the measurement unit 123 can also perform radio resource management (RRM) measurements, channel state information (CSI) measurements, etc., based on the received signal. The measurement unit 123 can also 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 can also be output to the control unit 110.

[0275] The transmission path interface 140 can also transmit and receive signals (backhaul signaling) between the device included in the core network 30 (e.g., the network node providing the NF), other base stations 10, etc., and can also acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0276] In addition, the transmitting unit and receiving unit of the base station 10 in this disclosure may also be composed of at least one of the transmitting and receiving unit 120, the transmitting and receiving antenna 130 and the transmission path interface 140.

[0277] The transmitting and receiving unit 120 may also transmit a first setting common to multiple operators. The control unit 110 may also use the first setting to instruct the reception of the physical downlink control channel (PDCCH) corresponding to a specific function (first embodiment).

[0278] (User terminal)

[0279] Figure 7 This diagram illustrates an example of the structure of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. Alternatively, more than one of each of the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be included.

[0280] Furthermore, while this example primarily illustrates the functional blocks of the characteristic portions of this embodiment, it is also conceivable that the user terminal 20 may also possess other functional blocks required for wireless communication. Some of the processing of each unit described below may also be omitted.

[0281] The control unit 210 performs overall control of the user terminal 20. The control unit 210 can be composed of a controller, control circuit, etc., which are described based on common knowledge in the art to which this disclosure pertains.

[0282] The control unit 210 can also control signal generation, mapping, etc. The control unit 210 can also control transmission, reception, measurement, etc., using the transmission / reception unit 220 and the transmission / reception antenna 230. The control unit 210 can also generate data, control information, sequences, etc., to be transmitted as signals and forward them to the transmission / reception unit 220.

[0283] The transmitting / receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting / receiving unit 220 may be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common knowledge in the art to which this disclosure pertains.

[0284] The transmitting and receiving unit 220 can be configured as a single integrated transmitting and receiving unit, or it can be composed of a transmitting unit and a receiving unit. The transmitting unit can also be composed of a transmitting processing unit 2211 and an RF unit 222. The receiving unit can also be composed of a receiving processing unit 2212, an RF unit 222, and a measurement unit 223.

[0285] The transmitting and receiving antenna 230 can be constructed from an antenna, such as an array antenna, as described based on common knowledge in the art to which this disclosure pertains.

[0286] The transmitting / receiving unit 220 can also receive the downlink channel, synchronization signal, downlink reference signal, etc., mentioned above. The transmitting / receiving unit 220 can also transmit the uplink channel, uplink reference signal, etc., mentioned above.

[0287] The transmitting and receiving unit 220 may also use digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), etc., to form at least one of the transmitting beam and the receiving beam.

[0288] The transmitting and receiving unit 220 (transmitting processing unit 2211) may, for example, perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control) on the data and control information obtained from the control unit 210, and generate the bit string to be transmitted.

[0289] The transmitting and receiving unit 220 (transmitting processing unit 2211) can also perform channel coding (which may include error correction coding), modulation, mapping, filter processing, DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be transmitted, and output the baseband signal.

[0290] Furthermore, whether or not to apply DFT processing can be based on the transform precoding settings. For a certain channel (e.g., PUSCH), if transform precoding is activated, the transmit / receive unit 220 (transmit processing unit 2211) can perform DFT processing as described above in order to transmit the channel using the DFT-s-OFDM waveform. If not, the transmit / receive unit 220 (transmit processing unit 2211) can perform the above transmission processing without performing DFT processing.

[0291] The transmitting and receiving unit 220 (RF unit 222) can also perform modulation, filtering, amplification, etc. on the baseband signal to the wireless frequency band, and transmit the wireless frequency band signal through the transmitting and receiving antenna 230.

[0292] On the other hand, the transmitting and receiving unit 220 (RF unit 222) can also amplify, filter, demodulate, etc., the signals of the wireless frequency band received by the transmitting and receiving antenna 230.

[0293] The transmitting and receiving unit 220 (receiving and processing unit 2212) can also perform receiving and processing on the acquired baseband signal, such as analog-to-digital conversion, FFT processing, IDFT processing (as needed), filter processing, demapping, demodulation, decoding (which may also include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, to obtain user data.

[0294] The transmitting / receiving unit 220 (measurement unit 223) can also perform measurements related to the received signal. For example, the measurement unit 223 can also perform RRM measurements, CSI measurements, etc., based on the received signal. The measurement unit 223 can also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results can also be output to the control unit 210.

[0295] Additionally, the measurement unit 223 can also derive channel measurements for CSI calculation based on channel measurement resources. Channel measurement resources can be, for example, non-zero power (NZP) CSI-RS resources. Furthermore, the measurement unit 223 can also derive interference measurements for CSI calculation based on interference measurement resources. Interference measurement resources can be at least one of NZP CSI-RS resources for interference measurement, CSI-Interference Measurement (IM) resources, etc. Additionally, CSI-IM can also be referred to as CSI-Interference Management (IM), and can be interchanged with zero power (ZP) CSI-RS. Furthermore, in this disclosure, CSI-RS, NZPCSI-RS, ZP CSI-RS, CSI-IM, CSI-SSB, etc., can also be interchanged.

[0296] Alternatively, the transmitting and receiving units of the user terminal 20 in this disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230.

[0297] The transmitting and receiving unit 220 can also receive a first setting common to multiple operators. The control unit 210 can also control the reception of the physical downlink control channel (PDCCH) corresponding to a specific function based on the first setting (first embodiment).

[0298] The sending and receiving unit 220 may also receive the first setting during the initial access process or after the initial access process is completed (first embodiment).

[0299] The control unit 210 can also be conceived as having PDCCH resources that are specific to a particular operator or are common resources among multiple operators (first embodiment).

[0300] Without receiving a second operator-specific setting, the control unit 210 can also control the reception of the PDCCH based on the first setting (second embodiment).

[0301] (Hardware structure)

[0302] Furthermore, the block diagrams used in the description of the above embodiments illustrate functional units. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Moreover, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented using a single device that is physically or logically combined, or it can be implemented by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. A functional block can also be implemented by combining the aforementioned single device or multiple devices with software.

[0303] Here, the functions include judgment, decision, determination, calculation, calculation, processing, export, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, regard as, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, a functional block (structural unit) that implements the sending function can also be called a transmitting unit, transmitter, etc. As described above, the implementation method is not particularly limited.

[0304] For example, in one embodiment of this disclosure, the base station, user terminal, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 8 This diagram illustrates an example of the hardware structure of a base station and a user terminal according to one embodiment. The base station 10 and the user terminal 20 described above can also be physically configured as a computer device including a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0305] Furthermore, in this disclosure, terms such as apparatus, circuit, device, section, and unit can be interchanged. The hardware structure of base station 10 and user terminal 20 can be configured to include one or more of the apparatuses shown in the figures, or it can be configured not to include any of the apparatuses.

[0306] For example, only one processor 1001 is shown, but there can be multiple processors. Furthermore, processing can be performed by one processor, or simultaneously, sequentially, or by two or more processors using other methods. Additionally, processor 1001 can be implemented using more than one chip.

[0307] The functions of the base station 10 and the user terminal 20 are implemented, for example, by reading specific software (programs) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of reading out and writing data in the memory 1002 and the storage device 1003.

[0308] The processor 1001, for example, enables the operating system to operate and control the computer as a whole. The processor 1001 may also be configured as a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic devices, registers, etc. For example, at least some of the control unit 110 (210), the transmit / receive unit 120 (220), etc. described above may also be implemented by the processor 1001.

[0309] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one of the storage 1003 and the communication device 1004 into the memory 1002, and performs various processes accordingly. As a program, a program that causes the computer to perform at least a portion of the operations described in the above embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001; similar implementations can be made for other functional blocks.

[0310] The memory 1002 may also be a computer-readable recording medium, such as being composed of at least one of read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), random access memory (RAM), or other suitable storage media. The memory 1002 may also be referred to as a register, cache, main memory (main storage device), etc. The memory 1002 is capable of storing executable programs (program code), software modules, etc., for implementing the wireless communication method according to one embodiment of this disclosure.

[0311] Storage device 1003 may also be a computer-readable recording medium, such as at least one of a flexible disc, floppy disk, optical disk (e.g., compact disc ROM, CD-ROM), digital multifunction disk, Blu-ray disc, removable disk, hard disk drive, smart card, flash memory device (e.g., card, stick, key drive), stripe, database, server, or other suitable storage medium. Storage device 1003 may also be referred to as an auxiliary storage device.

[0312] The communication device 1004 is hardware (transmitting and receiving device) used for communication between computers via at least one of a wired network and a wireless network. It is also referred to as a network device, network controller, network interface card (NIC), communication module, etc. To implement at least one of, for example, Frequency Division Duplex (FDD) and Time Division Duplex (TDD), the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the aforementioned transmitting and receiving unit 120 (220) and transmitting and receiving antenna 130 (230) can also be implemented by the communication device 1004. The transmitting and receiving unit 120 (220) can also be implemented by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0313] Input device 1005 is an input device that receives input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, light-emitting diode (LED) lamp, etc.). Alternatively, input device 1005 and output device 1006 can also be an integrated structure (e.g., a touch panel).

[0314] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 can be configured as a single bus or as different buses between the devices.

[0315] Furthermore, the base station 10 and the user terminal 20 can also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), and a field-programmable gate array (FPGA), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0316] (Variation example)

[0317] Furthermore, the terms described in this disclosure, as well as those necessary for understanding this disclosure, can be replaced with terms that have the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) can be interchanged. Additionally, a signal can also be a message. A reference signal can also be abbreviated as RS, and may be referred to as pilot, pilot signal, etc., depending on the applied standard. Furthermore, a component carrier (CC) can also be referred to as cell, frequency carrier, carrier frequency, etc.

[0318] A radio frame can also be composed of one or more periods (frames) in the time domain. Each of these periods (frames) that constitutes a radio frame can also be called a subframe. Furthermore, a subframe can also be composed of one or more time slots in the time domain. A subframe can also be a fixed time length (e.g., 1 ms) independent of the parameter set (numerology).

[0319] Here, the parameter set can also refer to communication parameters applied in at least one of the transmission and reception of a signal or channel. For example, the parameter set can also represent at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transmitter and receiver in the frequency domain, and specific windowing processing performed by the transmitter and receiver in the time domain.

[0320] In the time domain, a time slot can also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.). In addition, a time slot can also be a time unit based on a set of parameters.

[0321] A time slot can also contain multiple mini-time slots. Each mini-time slot can also consist of one or more symbols in the time domain. Furthermore, a mini-time slot can also be called a sub-time slot. A mini-time slot can also consist of fewer symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-time slot can also be called PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using mini-time slots can also be called PDSCH (PUSCH) mapping type B.

[0322] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can also use their respective other names. Furthermore, the time units such as frames, subframes, time slots, mini-time slots, and symbols in this disclosure can be interchanged.

[0323] For example, a subframe can also be called a TTI, multiple consecutive subframes can also be called a TTI, and a time slot or a mini-time slot can also be called a TTI. That is to say, at least one of the subframe and TTI can be a subframe in the existing LTE (1ms), a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. In addition, the unit representing TTI may not be called a subframe, but a time slot, mini-time slot, etc.

[0324] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules radio resources (frequency bandwidth, transmit power, etc., available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0325] TTI can also be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., and can also be a unit of processing such as scheduling and link adaptation. In addition, when a TTI is given, the actual time interval (e.g., the number of symbols) mapped to transmission blocks, code blocks, codewords, etc. can be shorter than the TTI.

[0326] Additionally, where a time slot or a mini-time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini-time slot) can also serve as the minimum time unit for scheduling. Furthermore, the number of time slots (mini-time slots) constituting the minimum time unit of the schedule can also be controlled.

[0327] A TTI with a duration of 1 ms can also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI can also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub-time slot, a time slot, etc.

[0328] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can also be rewritten as a TTI with a duration of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can also be rewritten as a TTI with a duration of less than a long TTI but more than 1 ms.

[0329] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can also contain one or more consecutive subcarriers. The number of subcarriers in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers in an RB can also be determined based on the parameter set.

[0330] Furthermore, an RB can contain one or more symbols in the time domain, and can also be a time slot, a mini-time slot, a subframe, or the length of a TTI. A TTI, a subframe, etc., can also be composed of one or more resource blocks.

[0331] In addition, one or more RBs can also be referred to as Physical Resource Blocks (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0332] In addition, a resource block can also consist of one or more resource elements (REs). For example, an RE can also be a radio resource area consisting of a subcarrier and a symbol.

[0333] The Bandwidth Part (BWP) (also referred to as partial bandwidth, etc.) can also represent a subset of consecutive common resource blocks (RBs) used for a certain parameter set in a certain carrier. Here, common RBs can also be determined by the index of RBs based on the common reference point of the carrier. PRBs can also be defined in a BWP and appended with numbers within that BWP.

[0334] A BWP can also include a UL BWP (the BWP used by UL) and a DL BWP (the BWP used by DL). For a UE, one or more BWPs can also be set within a single carrier.

[0335] At least one of the configured BWPs can be active, and the UE may not intend to transmit or receive specific signals / channels outside of the active BWPs. Furthermore, the terms "cell," "carrier," etc., in this disclosure can be rewritten as "BWP."

[0336] Furthermore, the structures described above, such as radio frames, subframes, time slots, mini-time slots, and symbols, are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, and the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be varied in many ways.

[0337] Furthermore, the information, parameters, etc., described in this disclosure can be represented by absolute values, relative values ​​with respect to a specific value, or other corresponding information. For example, wireless resources can also be indicated by a specific index.

[0338] In this disclosure, the names used for parameters, etc., are not limiting names in any respect. Furthermore, the mathematical expressions, etc., using these parameters may differ from those explicitly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name; therefore, the various names assigned to these various channels and information elements are not limiting names in any respect.

[0339] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be mentioned throughout the above description, can also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0340] Furthermore, information, signals, etc., can be output in at least one of the following directions: from higher level (upper layer) to lower level (lower layer), and from lower layer to higher level. Information, signals, etc., can also be input and output via multiple network nodes.

[0341] Input and output information, signals, etc., can be stored in a specific location (e.g., memory) or managed using management tables. Input and output information, signals, etc., can be overwritten, updated, or appended. Output information, signals, etc., can also be deleted. Input information, signals, etc., can also be sent to other devices.

[0342] The notification of information is not limited to the methods / implementations described in this disclosure, and may also be carried out by other methods. For example, the notification of information in this disclosure may also be implemented by physical layer signaling (e.g., downlink control information (DCI), uplink control information (UCI), etc.), higher layer signaling (e.g., radio resource control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB) etc.), medium access control (MAC) signaling), other signals, or combinations thereof.

[0343] In addition, physical layer signaling can also be referred to as Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signals), etc. Furthermore, RRC signaling can also be referred to as RRC messages, such as RRC connection setup messages, RRC connection reconfiguration messages, etc. Additionally, MAC signaling can also be notified using, for example, the MAC control element (CE).

[0344] Furthermore, notification of specific information (e.g., a notification of “is X”) is not limited to explicit notification, but can also be implicit (e.g., by not providing that specific information, or by providing other information).

[0345] The determination can be made by a value represented by a single bit (0 or 1), by a true or false value (boolean), or by a numerical comparison (e.g., a comparison with a specific value).

[0346] Whether it is called software, firmware, middleware, microcode, hardware description language, or any other name, software should be broadly interpreted as instructions, instruction sets, code, code segments, program code, program, subprogram, software module, application, software application, software package, routine, subroutine, object, executable file, execution thread, process, function, etc.

[0347] Furthermore, software, instructions, and information can also be sent and received via a transmission medium. For example, when software is sent from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0348] The terms “system” and “network” as used in this disclosure are interchangeable. “Network” may also mean devices included in a network (e.g., base stations).

[0349] In this disclosure, the terms “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 amplitude”, “beam angle”, “antenna”, “antenna element”, “panel”, “UE panel”, “transmitting entity”, and “receiving entity” are used interchangeably.

[0350] Furthermore, in this disclosure, the antenna port and the antenna port used for any signal / channel (e.g., the DeModulation Reference Signal (DMRS) port) can be mutually modified. In this disclosure, the resources and the resources used for any signal / channel (e.g., reference signal resources, SRS resources, etc.) can also be mutually modified. Additionally, resources may also include time / frequency / symbol / space / power resources. Moreover, the spatial domain transmission filter may include at least one of a spatial domain transmission filter and a spatial domain reception filter.

[0351] The aforementioned groups may include, for example, at least one of the following: spatial relation group, code division multiplexing (CDM) group, reference signal (RS) group, control resource set (CORESET) group, PUCCH group, antenna port group (e.g., DMRS port group), layer group, resource group, beam group, antenna group, panel group, etc.

[0352] Furthermore, in this disclosure, beam, SRS Resource Indicator (SRI), CORESET, CORESET Pool, PDSCH, PUSCH, Codeword (CW), Transport Block (TB), RS, etc., can also be rewritten to each other.

[0353] Furthermore, in this disclosure, the TCI state, downlink TCI state (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, and joint TCI state can also be rewritten to each other.

[0354] Furthermore, in this disclosure, terms such as "QCL", "QCL concept", "QCL relationship", "QCL type information", "QCL property (QCLproperty / properties)", "specific QCL type (e.g., type A, type D) property", and "specific QCL type (e.g., type A, type D)" can be rewritten interchangeably.

[0355] In this disclosure, indexes, identifiers (IDs), indicators, indications, resource IDs, etc., can be interchanged. Sequences, lists, sets, groups, clusters, subsets, etc., can also be interchanged.

[0356] Furthermore, the spatial relationship information identifier (ID) (TCI state ID) and the spatial relationship information (TCI state) can be interchanged. "Spatial relationship information (TCI state)" and "a set of spatial relationship information (TCI states)," or "one or more spatial relationship information," can also be interchanged. TCI state and TCI can also be interchanged. Spatial relationship information and spatial relationship can also be interchanged.

[0357] In this disclosure, the terms "Base Station (BS)", "Wireless Base Station", "Fixed Station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "Access Point", "Transmission Point (TP)", "Reception Point (RP)", "Transmission / Reception Point (TRP)", "Panel", "Cell", "Sector", "Cell Group", "Carrier", and "Component Carrier" are used interchangeably. There are also instances where terms such as macro cell, small cell, femtocell, and picocell are used to refer to base stations.

[0358] 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 divided into multiple smaller areas, each of which can also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​the base station providing communication services within that coverage area, as well as at least one of the base station subsystems.

[0359] In this disclosure, the information sent by the base station to the terminal and the control / operation instructed by the base station to the terminal based on that information can also be rewritten.

[0360] In this disclosure, the terms “Mobile Station (MS)”, “user terminal”, “user equipment (UE)”, and “terminal” are used interchangeably.

[0361] There are also instances where mobile stations are referred to as subscriber stations, mobile units, subscriber units, wireless units, remote units, mobile devices, wireless devices, wireless communication devices, remote devices, mobile subscriber stations, access terminals, mobile terminals, wireless terminals, remote terminals, handsets, user agents, mobile clients, clients, or several other appropriate terms.

[0362] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a wireless communication device, etc. Additionally, at least one of the base station and the mobile station can also be a device mounted on a moving object, the moving object itself, etc.

[0363] The term "mobile body" refers to a movable object whose speed is arbitrary, including situations where the body is stationary. Examples of such mobile bodies include vehicles, transport vehicles, automobiles, autonomous two-wheelers, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trailers, rickshaws, ships (bottles and other watercraft), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quadcopters, balloons, and objects carried on them, but are not limited to these. Furthermore, the mobile body can also be a mobile body that moves autonomously based on operational commands.

[0364] The mobile entity can be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile entity moving in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (humanized or unmanned). Additionally, at least one of the base station and the mobile station may include a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may also be an IoT (Internet of Things) device such as a sensor.

[0365] Figure 9 This figure illustrates an example of a vehicle according to one embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a gear shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a gear shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0366] The drive unit 41 is comprised of at least one of an engine, a motor, or a combination of an engine and a motor. The steering unit 42 is configured to include at least a steering wheel (also called a handlebar) and to steer at least one of the front wheel 46 and the rear wheel 47 based on the operation of the steering wheel operated by the user.

[0367] The electronic control unit 49 consists of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (e.g., an input / output (IO) port) 63). Signals from various sensors 50-58 present in the vehicle are input into the electronic control unit 49. The electronic control unit 49 can also be referred to as an electronic control unit (ECU).

[0368] The signals from various sensors 50-58 include current signals from current sensor 50 that senses the current of the motor, speed signals from the front wheel 46 / rear wheel 47 obtained by speed sensor 51, air pressure signals from the front wheel 46 / rear wheel 47 obtained by air pressure sensor 52, vehicle speed signals obtained by vehicle speed sensor 53, acceleration signals obtained by acceleration sensor 54, accelerator pedal 43 depress amount signals obtained by accelerator pedal sensor 55, brake pedal 44 depress amount signals obtained by brake pedal sensor 56, shift lever 45 operation signals obtained by shift lever sensor 57, and detection signals obtained by object detection sensor 58 for detecting obstacles, vehicles, pedestrians, etc.

[0369] The information service unit 59 comprises various devices such as a car navigation system, audio system, speakers, display, television, and radio, used to provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The information service unit 59 uses information obtained from external devices via the communication module 60, etc., to provide various information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0370] The information service unit 59 may include input devices that accept input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) or output devices that implement output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0371] The driver assistance system unit 64 comprises various devices used to provide functions for preventing accidents or reducing the driver's workload, such as millimeter-wave radar, light detection and ranging (LiDAR), cameras, positioning devices (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyroscope systems (e.g., Inertial Measurement Unit (IMU)) and Inertial Navigation System (INS)), artificial intelligence (AI) chips, and AI processors, and one or more ECUs that control these devices. Furthermore, the driver assistance system unit 64 sends and receives various information via the communication module 60 to realize driver assistance or autonomous driving functions.

[0372] The communication module 60 can communicate with the microprocessor 61 and the constituent elements of the vehicle 40 via the communication port 63. For example, the communication module 60 sends and receives data (information) between the microprocessor 61 and the memory (ROM, RAM) 62, and various sensors 50-58 in the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, gear shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, electronic control unit 49, and the vehicle 40 via the communication port 63.

[0373] The communication module 60 is controlled by the microprocessor 61 of the electronic control unit 49 and is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information between external devices via wireless communication. The communication module 60 can be located either inside or outside the electronic control unit 49. The external device can be, for example, the aforementioned base station 10, user terminal 20, etc. Furthermore, the communication module 60 can be, for example, at least one of the aforementioned base station 10 and user terminal 20 (or it can function as at least one of the base station 10 and user terminal 20).

[0374] The communication module 60 can also wirelessly transmit to an external device at least one of the signals input to the electronic control unit 49 from the various sensors 50-58, information obtained based on those signals, and information based on input from an external source (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc., can also be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 60 can also contain information based on the aforementioned inputs.

[0375] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) sent from external devices and displays it to the information service unit 59 provided by the vehicle. The information service unit 59 can also be referred to as an information output unit (e.g., outputting information to devices such as displays and speakers based on the PDSCH received by the communication module 60 (or the data / information decoded from the PDSCH)).

[0376] Furthermore, the communication module 60 stores various information received from external devices into a memory 62 that can be utilized by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, gear shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, and various sensors 50-58 of the vehicle 40 based on the information stored in the memory 62.

[0377] Furthermore, the base station in this disclosure can also be rewritten as a user terminal. For example, various methods / implementations of this disclosure can be applied to structures where communication between the base station and the user terminal is rewritten as communication between multiple user terminals (e.g., also referred to as device-to-device (D2D) or vehicle-to-everything (V2X)). In this case, it can also be configured such that the user terminal 20 has the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can also be rewritten as terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can also be rewritten as sidelink channel.

[0378] Similarly, the user terminal in this disclosure can also be rewritten as a base station. In this case, it can also be configured such that the base station 10 has the functions of the user terminal 20 described above.

[0379] In this disclosure, actions are assumed to be performed by the base station, and sometimes, depending on the circumstances, by its upper node. Clearly, in a network containing one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by the base station, one or more network nodes other than the base station (e.g., considering a Mobility Management Entity (MME), a Serving-Gateway (S-GW), etc., but not limited to these), or combinations thereof.

[0380] The various methods / implementations described in this disclosure can be used individually, in combination, or switched as needed during execution. Furthermore, the processing procedures, sequences, flowcharts, etc., of the various methods / implementations described in this disclosure can be rearranged as long as they do not contradict each other. For example, with respect to the method described in this disclosure, the illustrated order is used to indicate various steps, but the order in which they are indicated is not limited.

[0381] The various methods / implementations described in this disclosure can also be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Futuregeneration radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE This includes 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-Wideband (UWB)), Bluetooth (registered trademark), systems utilizing other appropriate wireless communication methods, and next-generation systems extended, modified, established, or specified based on them. Furthermore, multiple systems can be combined (e.g., LTE or LTE-A, combinations with 5G, etc.) for application.

[0382] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise specified. In other words, the word "based on" means both "based on only" and "based on at least".

[0383] Any reference to an element using the designations "first," "second," etc., as used in this disclosure does not comprehensively limit the quantity or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, references to the first and second elements do not imply that only two elements may be used, or that the first element must take precedence over the second element in some form.

[0384] The term "determining" as used in this disclosure can encompass a wide variety of actions. For example, "determining" can also refer to judging, calculating, computing, processing, deriving, investigating, looking up (search, inquiry) (e.g., searching in a table, database, or other data structure), and ascertaining.

[0385] In addition, "judgment (decision)" can also refer to receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, accessing (e.g., accessing data in memory), etc., as situations where "judgment (decision)" is performed.

[0386] Furthermore, "judgment (decision)" can also refer to situations where resolving, selecting, choosing, establishing, or comparing are considered as making a "judgment (decision)". In other words, "judgment (decision)" can also refer to certain actions as situations where a "judgment (decision)" is made. In this disclosure, "judgment (decision)" and the aforementioned operations can also be rewritten interchangeably.

[0387] Furthermore, in this disclosure, "determine / determining" can be interchanged with "assume / assuming," "expect / expecting," and "consider / considering." Additionally, in this disclosure, "not assuming to proceed..." and "assuming not to proceed..." can also be interchanged.

[0388] In this disclosure, "expect" and "be expected" can be rewritten interchangeably. For example, "expect(s)......" ("..." can also be expressed using a that clause, to infinitive, etc.) and "be expected......" can also be rewritten interchangeably. "does not expect......" and "be not expected......" can also be rewritten interchangeably. Furthermore, "An apparatus A is not expected......" and "Apparatus B other than apparatus A does not expect......" can also be rewritten interchangeably (for example, if apparatus A is a UE, apparatus B can also be a base station).

[0389] The term "maximum transmit power" as used in this disclosure can refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0390] As used in this disclosure, the terms “connected,” “coupled,” or all variations thereof, refer to all direct or indirect connections or combinations between two or more elements, and can include cases where there is one or more intermediate elements between two mutually “connected” or “coupled” elements. The connections or combinations between elements can be physical, logical, or a combination thereof. For example, “connected” can also be rewritten as “access.”

[0391] In this disclosure, when two elements are connected, it is possible to use more than one wire, cable, printed electrical connection, etc., and to use electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, light (both visible and invisible) region as several non-limiting and non-inclusive examples, so that they are "connected" or "combined" with each other.

[0392] In this disclosure, the term "A is different from B" can also mean "A and B are different from each other". Additionally, this term can also mean "A and B are different from C respectively". Terms such as "separate" and "combined" can also be interpreted in the same way as "different".

[0393] When the terms "include," "including," and variations thereof are used in this disclosure, these terms, like the term "comprising," mean inclusive. Furthermore, the term "or" as used in this disclosure does not mean XOR.

[0394] In this disclosure, for example, in cases where articles are added through translation, such as a, an, and the in English, the disclosure may also include cases where the noun following these articles is in a plural form.

[0395] In this disclosure, expressions such as "below," "less than," "above," "more," and "equal to" can be rewritten interchangeably. Furthermore, in this disclosure, words meaning "good," "bad," "large," "small," "high," "low," "fast," "slow," "wide," and "narrow," etc., are not limited to the positive, comparative, and superlative degrees, and can be rewritten interchangeably. Additionally, in this disclosure, words meaning "good," "bad," "large," "small," "high," "low," "fast," "slow," "wide," and "narrow," when used as expressions with the prefix "i" (where i is any integer), are not limited to the positive, comparative, and superlative degrees, and can be rewritten interchangeably (for example, "highest" and "i-th highest" can also be rewritten interchangeably).

[0396] In this disclosure, "of", "for", "regarding", "related to", "associated with", etc., can also be rewritten interchangeably.

[0397] In this disclosure, phrases such as "when A, B", "if A, then B", "B upon A", "B in response to A", "based on A", "B during / while A", "before A", "at the same time as / on A", "after A", "since A", and "until A" can be rewritten interchangeably. Furthermore, A and B can be appropriately rewritten as nouns, gerunds, or ordinary sentences depending on the context. Additionally, the time difference between A and B can be approximately 0 (immediately following or immediately preceding). Moreover, a time offset can be applied to the time A occurs. For example, "A" can also be rewritten interchangeably with "before / after the time offset of A". The time offset (e.g., more than one symbol / slot) can be predetermined or determined by the UE based on the information it is notified of.

[0398] In this disclosure, timing, moment, time, time instance, arbitrary time unit (e.g., time slot, sub-time slot, symbol, subframe), period, occasion, resource, etc., can also be rewritten to each other.

[0399] The inventions disclosed herein have been described in detail above. However, it will be apparent to those skilled in the art that the inventions disclosed herein are not limited to the embodiments described herein. The description herein is for illustrative purposes only and is not intended to limit the inventions disclosed herein in any way.

Claims

1. A terminal, comprising: The receiving unit receives a first setting common to multiple operators; and The control unit, based on the first setting, controls the reception of the physical downlink control channel (PDCCH) corresponding to a specific function.

2. The terminal as described in claim 1, wherein, The receiving unit receives the first setting during the initial access process or after the initial access process is completed.

3. The terminal as described in claim 1, wherein, The control unit is envisioned as having PDCCH resources that are specific to a particular operator or shared among multiple operators.

4. The terminal as described in claim 1, wherein, Without receiving a carrier-specific second setting, the control unit controls the reception of the PDCCH based on the first setting.

5. A wireless communication method for a terminal, comprising: The steps for receiving the first configuration common to multiple operators; and Based on the first setting, the steps for controlling the reception of the physical downlink control channel (PDCCH) corresponding to a specific function.

6. A base station, comprising: The transmitting unit transmits a first setting common to multiple operators; and The control unit, using the first setting, instructs the reception of the physical downlink control channel, i.e., the PDCCH, corresponding to a specific function.

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