Terminal, wireless communication method, and base station

Abstract

A terminal according to one embodiment of the present disclosure is characterized by comprising: a reception unit that receives first setting information relating to a first downlink (DL) bandwidth portion (BWP), second setting information relating to a first uplink (UL) BWP, third setting information relating to a second DL BWP, and fourth setting information relating to the second UL BWP; and a control unit that determines, on the basis of at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information, setting of a specific channel across at least one of the first DL BWP and the first UL BWP, and at least one of the second DL BWP and the second UL BWP. The second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first UL BWP, and are BWPs which are time division multiplexed with at least one of the first DL BWP and the first UL BWP, and the second DL BWP and the second UL BWP are frequency division multiplexed with each other. According to one mode of the disclosure, the utilization efficiency of resources can be improved.

Description

Technical Field

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

[0002] In the Universal Mobile Telecommunication System (UMTS) network, Long Term Evolution (LTE) has been standardized for the purpose of further high-speed data rates and low latency (Non-Patent Document 1). In addition, LTE-Advanced (3GPP Rel. 10-14) has been standardized for the purpose of further increasing the capacity and sophistication of LTE (Release (Rel.) 8 and 9 of the Third Generation Partnership Project (3GPP (registered trademark))).

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

[0004] Prior art literature

[0005] Non-patent literature

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

[0007] Problems to be solved by the invention

[0008] In future wireless communication systems (eg, NR), the use of sub-band non-overlapping full duplex (SBFD) in communications between terminals (user terminals, User Equipment (UE)) and networks (NW, such as base stations) is being studied.

[0009] However, there is insufficient research on the method of setting / activating / indicating frequency resources (for example, bandwidth part (BWP)) used in each channel / signal when using SBFD. If the research is insufficient, there is a concern that the increase in resource utilization efficiency will be suppressed.

[0010] Therefore, one of the objects of the present disclosure is to provide a terminal, a wireless communication method, and a base station that can improve resource utilization efficiency.

[0011] Means for solving problems

[0012] A terminal involved in one embodiment of the present disclosure is characterized by comprising: a receiving unit that receives first setting information related to a first downlink (DL) bandwidth part (BWP), second setting information related to a first uplink (UL) BWP, third setting information related to a second DL BWP, and fourth setting information related to a second UL BWP; and a control unit that determines the setting of a specific channel across at least one of the first DL BWP and the first UL BWP and at least one of the second DL BWP and the second UL BWP based on at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information, wherein the second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first UL BWP and are BWPs that are time-division multiplexed with at least one of the first DL BWP and the first UL BWP, and the second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

[0013] Effects of the Invention

[0014] According to one aspect of the present disclosure, it is possible to improve resource utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1A as well as Figure 1B This is a diagram showing an example of setting a time slot structure.

[0016] Figure 2It is a diagram showing an example of the structure of SBFD.

[0017] Figure 3A as well as Figure 3B This is a diagram showing an example of setting resources in the time domain and the frequency domain when SBFD is applied.

[0018] Figure 4A as well as Figure 4B These are diagrams showing examples of information related to the frequency for SBFD according to the first embodiment and option 1-A, respectively.

[0019] Figure 5 This is a diagram showing an example of setting of the BWP for SBFD according to the first embodiment.

[0020] Figure 6 This is a diagram showing an example of switching of the BWP according to the second embodiment.

[0021] Figure 7 This is a diagram showing an example of a schematic configuration of a wireless communication system according to an embodiment.

[0022] Figure 8 This is a diagram showing an example of the configuration of a base station according to an embodiment.

[0023] Fig. 9 This is a diagram showing an example of a configuration of a user terminal according to an embodiment.

[0024] Fig.10 This is a diagram showing an example of the hardware configuration of a base station and a user terminal according to an embodiment.

[0025] Fig.11 This is a diagram showing an example of a vehicle according to an embodiment. DETAILED DESCRIPTION

[0026] (sub-band non-overlapping full duplex (SBFD))

[0027] In LTE up to Rel. 14, frequency division duplex (FDD) is mainly put into practical use, and time division duplex (TDD) is also supported.

[0028] On the other hand, in NR from Rel.15 onwards, TDD is mainly studied, while FDD is also supported (for example, migration of LTE bands, etc.).

[0029] In FDD, DL reception and UL transmission can be performed simultaneously, which is preferable from the viewpoint of delay reduction. On the other hand, in FDD, the resource ratio between DL and UL is fixed (for example, 1:1).

[0030] In TDD, the ratio of DL and UL resources can be changed. For example, in a general environment where DL traffic is relatively large, the amount of DL resources can be increased to improve DL throughput.

[0031] On the other hand, if the time ratio of transmission and reception based on TDD up to Rel.16 is considered, the situation where the transmission opportunities of UL signals / channels become fewer relative to the reception opportunities of DL signals / channels is considered. If this is the case, the UE cannot frequently transmit UL signals / channels, and there is a concern about delays in the transmission of important UL signals / channels. In addition, compared with DL reception opportunities, the UL transmission opportunities become fewer, so there is also a concern about signal / channel congestion in the UL transmission opportunities. Furthermore, in TDD, the time resources that can be used to transmit UL signals / channels are limited, so the application of UL coverage enhancement technology based on repeated transmission (also referred to as repetition) is also limited.

[0032] In future wireless communication systems (for example, Rel. 18 and later), introduction of a division duplex method combining TDD and frequency division duplex (FDD) for UL and DL is under study.

[0033] This split duplex method may also be referred to as sub-band non-overlapping full duplex (SBFD).

[0034] SBFD may also mean, for example, a duplexing method that frequency-division multiplexes DL and UL in one component carrier (CC) / band of a TDD band or in multiple CCs (in the same band) (capable of using DL and UL at the same time).

[0035] When this duplexing method is applied to a plurality of CCs, it may also mean that a time resource that can be used for DL ​​in a certain CC can be used for UL in another CC.

[0036] Figure 1A This is a diagram showing an example of TDD settings specified up to Rel.16. Figure 1A In the example shown, TDD slot / symbol configuration is performed for the UE in the bandwidth of one component carrier (CC) (which may also be referred to as a cell or a serving cell).

[0037] Figure 1A In the example shown, the time ratio of DL slot to UL slot is 4: 1. In such a conventional TDD slot / symbol setting, sufficient UL time resources cannot be secured, and there is a concern that UL transmission delay may occur and coverage performance may be degraded.

[0038] Figure 1B FIG. 1 is a diagram showing an example of the structure of SBFD. Figure 1B In the example of , in one component carrier (CC), resources for DL ​​reception and resources for UL transmission overlap in time. According to such a resource structure, UL resources can be secured and the utilization efficiency of resources can be improved.

[0039] For example, Figure 1B As shown in the example, both ends of the frequency domain in one CC are configured as DL, and the UL resources are sandwiched by the DL, so that the generation of cross link interference (CLI) with adjacent carriers can be avoided and mitigated. In addition, a protection area can also be set at the boundary between DL resources and UL resources.

[0040] If the complexity of processing self-interference is considered, it can be considered that only the base station uses DL resources and UL resources at the same time. That is, in the resources where DL and UL overlap in time, it can also be set as a structure in which a certain UE uses DL resources and other UEs use UL resources.

[0041] Figure 2 FIG. 1 is a diagram showing an example of the structure of SBFD. Figure 2 In the example shown, a part of the DL resources in the TDD band is configured as UL resources, and the DL and UL overlap in a part of time.

[0042] exist Figure 2 In the example shown, during the DL-only period, multiple UEs (in Figure 2 Receive DL channel / signal for each of UE#1 and UE#2).

[0043] In addition, during the period when DL and UL overlap in time, a UE (in Figure 2 In the example of UE#1), the DL channel / signal is received, and other UEs ( Figure 2 In the example of UE#2), UL channel / signal is transmitted. During this period, the base station performs simultaneous transmission and reception of DL and UL.

[0044] Further, during the UL-only period, each of the plurality of UEs transmits a UL channel / signal.

[0045] In the existing NR (for example, those specified up to Rel.15 / 16), the DL frequency resources and UL frequency resources in the UE carrier are set as DL bandwidth parts (Bandwidth Part (BWP)) and UL BWP, respectively. In order to switch the DL / UL frequency resources to other DL / UL frequency resources, multiple BWP settings and BWP adaptation mechanisms are required.

[0046] In addition, in the existing NR, the time resource in the TDD carrier used by the UE is set to at least one of DL, UL, and flexible (FL) in the TDD setting.

[0047] The method of setting time domain and frequency domain resources when using SBFD is being studied. Figure 2 UE#1 can minimize the impact on the specification / UE by setting the resources in the period where DL and UL overlap in the time domain in the same way as the existing DL resources (for example, after avoiding the use of part of the UL resources by using frequency domain resource allocation (FDRA)). Figure 3A ).

[0048] In addition, for example, Figure 2 UE#2 can minimize the impact on the specification / UE by setting the resources in the period when DL and UL overlap in the time domain in the same way as the existing UL resources (for example, after avoiding the use of part of the DL resources by using frequency domain resource allocation (FDRA)). Figure 3B ).

[0049] (Switching / deactivating BWP)

[0050] In existing specifications (up to Rel. 17), BWP is switched / deactivated for high data rate / UE power consumption reduction.

[0051] The switching of the BWP is performed for the UE using the DCI. The UE determines the switching of the BWP based on the BWP indicator field included in the DCI.

[0052] Deactivation of the BWP is performed using a deactivation timer.

[0053] In type 1 HARQ-ACK codebook transmission after the DL BWP in the serving cell is changed (switched) or the UL BWP in the PUCCH transmission cell is changed, HARQ-ACK information associated with PDSCH reception in the time slot before the DL / UL BWP is changed is not included in the type 1 HARQ-ACK codebook.

[0054] In type 2 HARQ-ACK codebook transmission after the change of DL BWP in the serving cell or the change of UL BWP in the PUCCH transmission cell, HARQ-ACK information associated with the PDCCH monitoring opportunity in the time slot before the change of DL / UL BWP is not included in the type 2 HARQ-ACK codebook.

[0055] When the BWP is deactivated, the UE clears the DL allocation in the BWP (based on the indication of DCI format 1_0 / 1_1) and the UL grant configured for the type 2 configuration grant (based on the indication of DCI format 0_0 / 0_1).

[0056] (analyze)

[0057] After Rel.18, the SBFD operation in a single or multiple BWP pairs / aggregates in a certain carrier is being studied.

[0058] In the present disclosure, a pair of BWPs, a set of BWPs, a list of BWPs, etc. may also overwrite each other.

[0059] In the present disclosure, a pair / set of a single BWP may also mean a pair / set including one DL BWP (configuration) and one UL BWP (configuration). In addition, in the present disclosure, a pair / set of a single BWP may also mean a pair / set including one or more DL BWP (configuration) and one or more UL BWP (configuration).

[0060] In the present disclosure, the numbers of DL BWPs (configuration) and ULBWPs (configuration) included in a single BWP pair / set may be the same or different.

[0061] In the existing specifications (up to Rel. 17), the UE receives DL channels / signals (DL reception) within the activated DLBWP. In addition, the UE transmits UL channels / signals (UL transmission) within the activated UL BWP.

[0062] In SBFD based on a pair / set of single BWPs, resource blocks (RBs) in an activated DL BWP may be included in a subband of the UL in a time domain (e.g., symbol / slot (may also be referred to as SBFD symbol / slot)) in which SBFD is applied / utilized. In other words, not all RBs in an activated DL BWP are necessarily utilized in a SBFD symbol.

[0063] Therefore, unlike the DL / UL BWP in the time domain using SBFD, how to set / instruct the RB for the DL / UL BWP in the time domain using SBFD becomes a problem.

[0064] In addition, similar to the existing specifications, in SBFD based on multiple BWP pairs / sets, when the BWP is deactivated, the UE clears the setting of semi-persistent scheduling (SPS) and sets the setting of grant type 2 (also referred to as set UL grant type 2) is being studied.

[0065] In this case, there is a concern that the UE cannot report HARQ-ACK associated with the PDSCH before the BWP change or HARQ-ACK associated with the PDCCH monitoring opportunity before the BWP change in the time slot after the BWP change. In other words, there is a concern that frequent BWP switching caused by SBFD operation will degrade system performance.

[0066] Furthermore, the UE cannot perform repetition across multiple BWPs. That is, from this point of view, there is also a concern that frequent BWP switching caused by SBFD operation may degrade system performance.

[0067] Therefore, the inventors of the present invention have conceived a method of setting / instructing the BWP involved in the SBFD operation in order to solve the above-mentioned problem.

[0068] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The wireless communication methods according to the embodiments may be applied individually or in combination.

[0069] Hereinafter, the “specific type” in the present disclosure is described based on the premise of ..., but is not limited thereto. The ... in the present disclosure may also mean any one or a combination of ... (that is, ... may also be rewritten as any one or a combination of them).

[0070] In the present disclosure, "A / B" and "at least one of A and B" may be replaced with each other. In addition, in the present disclosure, "A / B / C" may also mean "at least one of A, B, and C".

[0071] In the present disclosure, notification, activation, deactivation, indication (or indication), selection, configuration, update, determination, etc. may also be mutually rephrased. In the present disclosure, support, control, controllable, operation, operable, etc. may also be mutually rephrased.

[0072] In the present disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, high-layer parameters, fields, Information Element (IE), settings, etc. may also be overwritten with each other. In the present disclosure, Medium Access Control (MAC) control elements (MAC Control Element (CE)), update commands, activation / deactivation commands, etc. may also be overwritten with each other.

[0073] In the present disclosure, the higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0074] In the present disclosure, MAC signaling may also use, for example, MAC Control Element (MACCE), MAC Protocol Data Unit (PDU), etc. Broadcast information may also be, for example, Master Information Block (MIB), System Information Block (SIB), minimum system information (Remaining Minimum System Information (RMSI)), Other System Information (Other System Information (OSI)), etc.

[0075] In the present disclosure, the physical layer signaling may be, for example, downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI)), etc.

[0076] In the present disclosure, an index, an identifier (ID), an indicator, a resource ID, etc. may also be overwritten with each other. In the present disclosure, a sequence, a list, a set, a group, a group, a cluster, a subset, etc. may also be overwritten with each other.

[0077] In the present disclosure, DL reception and UL transmission in the same time resource, frequency division multiplexed (FDM) transmission and reception of DL reception resources and UL transmission resources (in a subband), simultaneous transmission and reception operations, simultaneous transmission and reception, full-duplex (FD) communication, SBFD, and SBFD communication may also be overwritten with each other.

[0078] In the present disclosure, non-SBFD, existing (up to Rel. 17), normal, DL reception resources and UL transmission resources (in subbands) that are not frequency division multiplexed (FDM) transmission and reception may be mutually rewritten.

[0079] In the present disclosure, the frequency resources for SBFD (eg, DL / UL BWP) may be included in the frequency domain of the frequency resources for non-SBFD (eg, DL / UL BWP) and may be time division multiplexed (TDM) with the frequency resources for non-SBFD.

[0080] In the present disclosure, DL frequency resources for SBFD (eg, DL BWP) and UL frequency resources for SBFD (eg, UL BWP) may also be frequency division multiplexed (FDM) with each other.

[0081] In the present disclosure, time domain, time resource, time slot, sub-time slot, and codeword may also be mutually replaced. In the present disclosure, frequency domain, frequency resource, resource block (RB), physical resource block (PRB), BWP, DL BWP, UL BWP, CC, band domain, and carrier may also be mutually replaced.

[0082] In the present disclosure, the starting position of the frequency resource, the lowest (or highest) RB / PRB in the frequency resource, and the RB / PRB with the lowest (or highest) index in the frequency resource may also overwrite each other.

[0083] In the present disclosure, the end position of the frequency resource, the highest (or lowest) RB / PRB in the frequency resource, and the RB / PRB with the highest (or lowest) index in the frequency resource may also overwrite each other.

[0084] (Wireless Communication Method)

[0085] <First Embodiment>

[0086] The first embodiment relates to the setting of BWP related to SBFD.

[0087] In the first embodiment, the switching of the BWP may not be used.

[0088] The UE may also receive information related to the frequency for SBFD, and the UE may be configured with a frequency location and a bandwidth for SBFD based on the information.

[0089] For UL / DL BWP, the UE may also be configured with one or more (eg, X) frequency locations and bandwidths for SBFD.

[0090] For example, for UL / DL BWP, the UE may receive setting information related to the frequency position and bandwidth for non-SBFD and setting information related to the frequency position and bandwidth for SBFD.

[0091] Regarding the UL / DL BWP, the UE may determine the UL / DL BWP in the time domain to which SBFD is not applied based on the configuration information related to the frequency position and bandwidth not used for SBFD.

[0092] Regarding the UL / DL BWP, the UE may determine the UL / DL BWP in the time domain to which SBFD is applied based on the setting information related to the frequency position and bandwidth used for SBFD.

[0093] Figure 4A FIG. 4 is a diagram showing an example of information related to the frequency for SBFD according to the first embodiment. Figure 4A In the example shown, information related to the frequency used for SBFD is set using RRC signaling. Figure 4A In the , this information is recorded using the Abstract Syntax Notation One (ASN.1) notation (just one example).

[0094] exist Figure 4A In the example shown, setting information related to the frequency position and bandwidth for non-SBFD (for example, locationAndBandwidth) and setting information related to the frequency position and bandwidth for SBFD (for example, locationAndBandwidth-SBFD) are described. Figure 4A In the example shown, setting information related to the frequency position and bandwidth for non-SBFD (e.g., locationAndBandwidth) and setting information related to the frequency position and bandwidth for SBFD (e.g., locationAndBandwidth-SBFD) are included in the information for setting the (DL / UL) BWP (e.g., BWP).

[0095] The configuration information related to the frequency position and bandwidth for SBFD may also include the number of consecutive / non-consecutive physical resource blocks (PRBs). The configuration information related to the frequency position and bandwidth for non-SBFD may also include the number of consecutive PRBs.

[0096] For UL BWP, the center frequency of the setting related to the frequency position and bandwidth for SBFD and the center frequency of the setting related to the frequency position and bandwidth for non-SBFD may be equal. In other words, the setting related to the frequency position and bandwidth for SBFD and the setting related to the frequency position and bandwidth for non-SBFD may be common in terms of the center frequency.

[0097] For UL BWP, the size of the frequency resource for SBFD and the size of the frequency resource for non-SBFD may also be set separately. For example, the size of the frequency resource for SBFD and the size of the frequency resource for non-SBFD may be different. The size of the frequency resource for SBFD may also be not greater than the size of the frequency resource for non-SBFD.

[0098] For DL ​​BWP, at least one of the center frequency and the specific resource block index set for the frequency position and bandwidth for SBFD and at least one of the center frequency and the specific resource block index set for the frequency position and bandwidth for non-SBFD may be equal. In other words, for the setting related to the frequency position and bandwidth for SBFD and the setting related to the frequency position and bandwidth for non-SBFD, at least one of the center frequency and the specific resource block index may be common.

[0099] The specific resource block index may also be, for example, the lowest / highest resource block index.

[0100] The UE may also receive at most one setting related to the frequency location and bandwidth for SBFD. The setting may also include non-contiguous PRBs.

[0101] Multiple resource indicator values ​​(RIVs) may also be configured for use in frequency location and bandwidth related configurations for SBFD. Each RIV may also represent a subset of consecutive PRBs (Option 1-A).

[0102] Figure 4B FIG. 1 is a diagram showing an example of information related to the frequency for SBFD according to Option 1-A. Figure 4B In the example shown, information related to the frequency used for SBFD is set using RRC signaling. Figure 4B In the example, this information is recorded using ASN.1 notation (just an example).

[0103] exist Figure 4B In the example shown, the setting information related to the frequency position and bandwidth for SBFD (e.g., locationAndBandwidth-SBFD) is expressed using two discontinuous frequency resources (resource blocks). In addition, the setting information related to the frequency position and bandwidth for SBFD (e.g., locationAndBandwidth-SBFD) may also be expressed using three or more discontinuous frequency resources (resource blocks).

[0104] Furthermore, discontinuous resource blocks configured with respect to the frequency position and bandwidth for SBFD may be represented by information indicating the start position / end position of the resource block (option 1-B).

[0105] The UE may also receive multiple frequency location and bandwidth related configurations. The UE may also determine which frequency location and bandwidth related configuration to apply based on at least one of the following options 1-1 and 1-2.

[0106] For example, the UE may determine which configuration related to the frequency position and bandwidth to apply based on the current time slot / symbol (to which the current configuration is applied) (option 1-1).

[0107] For example, when the current time slot / symbol (to which the current setting is applied) is a time slot / symbol for SBFD, the UE may also determine to apply a setting for SBFD from among a plurality of settings related to frequency position and bandwidth. In addition, when the current time slot / symbol (to which the current setting is applied) is a time slot / symbol for non-SBFD, the UE may also determine to apply a setting for non-SBFD from among a plurality of settings related to frequency position and bandwidth.

[0108] For example, the UE may also determine which frequency location and bandwidth-related settings to apply based on instructions from the base station (option 1-2).

[0109] For example, the UE may determine which setting related to the frequency position and bandwidth to apply based on the indication of a specific field included in the DCI / MAC CE.

[0110] The specific field may be a new field defined in or after Rel. 18. When reporting UE capability information related to SBFD and SBFD is configured / applied, the UE may assume / determine that the DCI includes the specific field.

[0111] The specific field may be (a combination of) existing fields (defined up to Rel. 17).

[0112] Figure 5FIG. 1 is a diagram showing an example of setting of the BWP for SBFD according to the first embodiment. Figure 5 In the illustrated example, a UL / DL BWP for SBFD (UL / DL BWP#1) and a UL / DL BWP for non-SBFD (UL / DL BWP#2) are configured for the UE.

[0113] The setting of the UL / DL BWP (UL / DL BWP#1) for non-SBFD and the setting of the UL / DL BWP (UL / DL BWP#2) for SBFD may be performed based on the setting information related to the frequency position and bandwidth for non-SBFD (e.g., locationAndBandwidth) and the setting information related to the frequency position and bandwidth for SBFD (e.g., locationAndBandwidth-SBFD), respectively.

[0114] In addition, Figure 5 In the example shown, the time domain resources for SBFD and the time domain resources for non-SBFD are recorded consecutively, but a gap may be set between the time domain resources for SBFD and the time domain resources for non-SBFD. Figure 5 In the example shown, the DL resources and UL resources for SBFD are described consecutively, but a gap may be set between the DL resources and UL resources for SBFD.

[0115] The gap may be pre-defined in the specification or may be set to the UE using higher layer signaling.

[0116] In addition, Figure 5 In the example shown, a configuration is shown in which the UL resource for SBFD is sandwiched between the DL resource for SBFD, but the present invention is not limited to this example. For example, the DL resource for SBFD may be sandwiched between the UL resource for SBFD.

[0117] According to the first embodiment described above, it is possible to appropriately set the BWP related to the SBFD without switching the BWP.

[0118] <Second Embodiment>

[0119] The second embodiment relates to the setting of BWP related to SBFD.

[0120] In the second embodiment, switching of BWP may also be used.

[0121] For example, the second DL / UL BWP may be activated and thus the first DL / UL BWP may be deactivated.

[0122] The UE may receive configuration information related to the DL / UL BWP for non-SBFD and configuration information related to the DL / UL BWP for SBFD.

[0123] The UE may also be instructed to change / switch the configured BWP using DCI / MAC CE.

[0124] Hereinafter, in the present embodiment, the first DL / UL BWP may be a BWP not for SBFD, and the second DL / UL BWP may be a BWP for SBFD.

[0125] Hereinafter, in the present embodiment, the first DL / UL BWP may be a BWP for SBFD, and the second DL / UL BWP may be a BWP for non-SBFD.

[0126] BWP for non-SBFD and BWP for SBFD can also be switched

[0127] Figure 6 FIG. 1 is a diagram showing an example of switching of the BWP according to the second embodiment. Figure 6 In the example shown, the UE switches from activated DL BWP#1 (UL BWP#1) as a BWP for non-SBFD to DL BWP#2 and UL BWP#2 as BWPs for SBFD. Next, the UE switches from activated DL BWP#2 and UL BWP#2 as BWPs for SBFD to ULBWP#1 (DL BWP#1).

[0128] In the present disclosure, switching from a non-SBFD BWP to a SBFD BWP, deactivation of a non-SBFD BWP, and activation of a SBFD BWP may be overwritten.

[0129] In the present disclosure, switching from the BWP for SBFD to the BWP for non-SBFD, deactivation of the BWP for SBFD, and activation of the BWP for non-SBFD may be overwritten.

[0130] The UE may also determine the transmission / reception / setting of a specific channel / signal before and after switching / changing across DL / UL BWP.

[0131] 《Implementation Method 2-1》

[0132] In Embodiment 2-1, UE operation related to switching of BWP is described.

[0133] When the BWP is switched, the UE may stop (suspend) specific settings in the first BWP.

[0134] The configuration may be, for example, at least one of a configured DL allocation and a configured UL grant. The UL grant may be, for example, a configuration related to a configuration grant of a specific type (eg, type 1 / 2).

[0135] For example, stopping (temporarily stopping (suspending)) a ​​specific setting may also be controlled by using a specific timer. For example, when stopping a specific setting, the UE may start the specific timer and resume application of the specific setting after the specific timer expires.

[0136] For example, stopping (temporarily stopping (suspending)) a ​​specific configuration may be controlled using a specific instruction. For example, when stopping a specific configuration, the UE may restart application of the specific configuration based on the specific instruction.

[0137] In the case where the first BWP is switched to the first BWP again after being deactivated (the first BWP is reactivated), the UE may not reactivate the settings in the first BWP before the first BWP is deactivated.

[0138] In the case where the first BWP is switched to the first BWP again after being deactivated (the first BWP is reactivated), the UE may also reactivate the settings in the first BWP before the first BWP is deactivated.

[0139] Regarding the transmission / reporting of HARQ-ACK information in the time domain after the BWP is changed / switched, the UE may include, in the codebook of the HARQ-ACK information (HARQ-ACK codebook), HARQ-ACK information associated with PDSCH reception before the BWP is changed / switched.

[0140] For generation of the HARQ-ACK codebook of the first type (eg, type 1), the time slot of the PDSCH before the change / switching of the BWP may also be included in (a set of) time slots for setting candidate PDSCH opportunities.

[0141] The generation of the HARQ-ACK codebook of the second type (eg, type 2) may also include the DCI format in the PDCCH monitoring opportunity before the BWP change / switching.

[0142] Regarding the repetition of a specific channel (for example, PDSCH / PDCCH / PUSCH / PUCCH) started before the change / switching of the BWP, the UE may also transmit / receive the repetition of the channel after the change / switching of the BWP.

[0143] Before and after the BWP is changed / switched, the number of repetitions may continue to be counted. Also, before and after the BWP is changed / switched, the number of repetitions may be reset.

[0144] The frequency domain allocation for repeated use in the second BWP may also be the same as (common to) the frequency domain allocation for repeated use in the first BWP. For example, for the frequency domain allocation for repeated use in the second BWP, the UE may also follow the frequency domain allocation for repeated use in the first BWP.

[0145] The repetitive resources for a specific channel may include resources other than the physical resource blocks (PRBs) configured in the second BWP. In other words, the repetitive resources for a specific channel may be allocated to resources other than the second configured physical resource blocks (PRBs).

[0146] In this case, the UE may determine or assume that the repetition is not transmitted or received. For the repetition in resources other than the second configured physical resource block (PRB), the UE may or may not count the number of repetitions.

[0147] In this case, the UE may also assume / determine that the repetition is rate-matched within the PRB set for the second BWP.

[0148] Additional conditions related to the first BWP and the second BWP may be defined / applied. The UE may determine / assume that additional conditions related to the first BWP and the second BWP are applied.

[0149] For example, the first BWP and the second BWP may be BWPs that are related to each other.

[0150] This association may be pre-defined in the specification, or may be notified to the UE using system information (eg, system information block (SIB)), or may be set to the UE using RRC signaling, or may be indicated to the UE using DCI / MAC CE, or at least one of these may be combined.

[0151] 《Implementation Method 2-2》

[0152] In Embodiment 2-2, a method for determining the non-SBFD DL / UL BWP and the SBFD DL / UL BWP in the serving cell is described.

[0153] The UE may determine at least one of the DL / UL BWP for non-SBFD and the DL / UL BWP for SBFD based on at least one of the following options 2-2-1 and 2-2-2.

[0154] [Option 2-2-1]

[0155] The UE may also receive settings related to SBFD and settings related to non-SBFD.

[0156] The UE may also determine the frequency / time resources related to SBFD based on the settings related to SBFD. The UE may also determine the frequency / time resources related to non-SBFD based on the settings related to non-SBFD.

[0157] For example, a RRC information element related to BWP (eg, BWP) may also include a parameter indicating whether the BWP is for SBFD or non-SBFD use.

[0158] For example, for a UE, a maximum of X (for example, X=4, X may be less than 4, or X may be greater than 4) SBFD DL / UL BWPs may be configured using RRC signaling. In this case, a maximum of Y (for example, Y is greater than 1) non-SBFD DL / UL BWPs may be configured for the UE.

[0159] For example, for the UE, a maximum of X (for example, X=4, X may be less than 4, or X may be greater than 4) non-SBFD DL / UL BWPs may be configured using RRC signaling. In this case, a maximum of Y (for example, Y is greater than 1) SBFD DL / UL BWPs may be configured for the UE.

[0160] [Option 2-2-2]

[0161] The UE may also be implicitly configured for at least one of SBFD and non-SBFD.

[0162] The UE may also determine whether the DL / UL BWP is for SBFD based on the DL / UL BWP settings.

[0163] For example, the UE may determine, for each configured DL / UL BWP (for each DL / UL BWP configuration), whether the DL / UL BWP is the DL / UL BWP for SBFD.

[0164] For example, when the configured DL / UL BWP includes discontinuous PRBs, the UE may determine that the DL / UL BWP is a DL / UL BWP for SBFD.

[0165] For example, when the configured DL / UL BWP does not include discontinuous PRBs, the UE may determine that the DL / UL BWP is a DL / UL BWP not for SBFD.

[0166] For example, when the sum (union) of the resources (PRB) of the configured DL / UL BWP and the resources (PRB) of other DL / UL BWP for SBFD is equal to the resources (PRB) of a specific DL / UL BWP for SBFD, the UE may also determine that the resources (PRB) of the configured DL / UL BWP are the resources (PRB) of the DL / UL BWP for SBFD.

[0167] According to the second embodiment described above, when switching of the BWP is performed, the setting of the BWP related to the SBFD can be appropriately performed.

[0168] <Third Embodiment>

[0169] The third embodiment relates to a BWP being activated for a UE.

[0170] It is also possible to allow multiple DL / UL BWPs to be activated (simultaneously). It is also possible to allow multiple BWPs to be activated in a certain time instance.

[0171] The UE may also support multiple DL / UL BWPs being activated. Multiple DL / UL BWPs may also be activated for the UE. In other words, the UE may also support multiple BWPs being activated in a certain time instance.

[0172] For example, for the UE, a first BWP (eg, a DL / UL BWP not for SBFD) and a second BWP (eg, a DL / UL BWP for SBFD) may be activated.

[0173] According to the third embodiment, it is possible to support BWP based on operations related to SBFD without frequent activation / deactivation / switching of BWP.

[0174] 《Implementation Method 3-1》

[0175] The DL / UL BWP for SBFD and the DL / UL BWP for non-SBFD may also be associated.

[0176] This association may be pre-specified in the specification, or may be set / indicated / notified to the UE using RRC / MAC CE / DCI / SIB.

[0177] Interrelated BWPs may also meet certain conditions.

[0178] For example, with respect to the position in the frequency domain, the DL BWP for SBFD may also have a start / end / center position common with the associated DL BWP for non-SBFD.

[0179] For example, the bandwidth (size) of the SBFD DL BWP may be different from the bandwidth (size) of the associated non-SBFD DL BWP. For example, the bandwidth (size) of the SBFD DL BWP may be smaller than the bandwidth (size) of the associated non-SBFD DL BWP.

[0180] For example, with respect to the position in the frequency domain, the UL BWP for SBFD may also have a start / end / center position that is common with the associated UL BWP for non-SBFD.

[0181] For example, the bandwidth (size) of the UL BWP for SBFD may be different from the bandwidth (size) of the associated UL BWP for non-SBFD. For example, the bandwidth (size) of the UL BWP for SBFD may be smaller than the bandwidth (size) of the associated UL BWP for non-SBFD.

[0182] The following describes UE operations after activation / deactivation of BWP.

[0183] The UE may also follow the method described in at least one of the following options 3-1-1 and 3-1-2.

[0184] [Option 3-1-1]

[0185] Alternatively, once a DL / UL BWP for SBFD / non-SBFD is activated / deactivated, the associated DL / UL BWP for SBFD / non-SBFD is also activated / deactivated.

[0186] When the DL / UL BWP for SBFD / non-SBFD is activated / deactivated, the UE may determine that the associated DL / UL BWP for SBFD / non-SBFD is also activated / deactivated.

[0187] In the case of option 3-1-1, explicit configuration / instruction of activation / deactivation of associated DL / UL BWP for SBFD / non-SBFD is not required, and thus signaling overhead can be reduced.

[0188] [Option 3-1-2]

[0189] When the DL / UL BWP for SBFD / non-SBFD is activated / deactivated, setting / instruction related to activation / deactivation of the associated DL / UL BWP for SBFD / non-SBFD may be required.

[0190] When the DL / UL BWP for SBFD / non-SBFD is activated / deactivated, the UE may also additionally receive an indication / setting related to the activation / deactivation of the associated DL / UL BWP for SBFD / non-SBFD. The UE may also determine the activation / deactivation of the associated DL / UL BWP for SBFD / non-SBFD based on the setting / indication.

[0191] In the case of option 3-1-2, the activation / deactivation setting / instruction of a certain BWP may also be based on the activation / deactivation setting / instruction of other (related) BWPs.

[0192] For example, when a non-SBFD BWP is activated / deactivated, the UE may also assume / expect that the associated SBFD BWP is activated / deactivated (eg, receives an activation command).

[0193] For example, when the BWP for SBFD is activated / deactivated, the UE may also assume / expect that the associated BWP for non-SBFD is activated / deactivated (eg, receives an activation command).

[0194] Implementation Method 3-2

[0195] The UE may also separately (independently) activate / deactivate the DL / UL BWP for non-SBFD and the DL / UL BWP for SBFD.

[0196] For example, when the activated DL / UL BWP for SBFD is deactivated, the UE may also regard that the DL / UL BWP for non-SBFD is still activated.

[0197] For example, when an activated DL / UL BWP not for SBFD is deactivated, the UE may also regard that the DL / UL BWP for SBFD is still activated.

[0198] The method of determining / judging whether it is the BWP for SBFD or the BWP for non-SBFD can also be applied to the above-mentioned embodiment 2-2.

[0199] According to the above third embodiment, it is possible to appropriately judge / set / instruct the BWP to be activated / deactivated.

[0200] <Supplement>

[0201] [Notification of information to UE]

[0202] The notification of arbitrary information (from the network (NW)) (e.g., base station (BS))) to the UE (in other words, the reception of arbitrary information from the BS in the UE) in the above-mentioned embodiments may also be performed using physical layer signaling (e.g., DCI), higher layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PDCCH, PDSCH, reference signals), or a combination thereof.

[0203] When the above notification is performed through MAC CE, the MAC CE may be identified by including a new logical channel ID (Logical Channel ID (LCID)) not specified in the existing standard in a MAC subheader.

[0204] When the above notification is performed through DCI, the above notification may be performed through a specific field of the DCI, a Radio Network Temporary Identifier (RNTI) used in scrambling a cyclic redundancy check (CRC) bit assigned to the DCI, the format of the DCI, etc.

[0205] In addition, the notification of arbitrary information to the UE in the above-mentioned embodiments may be performed periodically, semi-continuously, or aperiodically.

[0206] [Notification of information from UE]

[0207] The notification of arbitrary information from the UE (to the NW) in the above-mentioned implementation manner (in other words, the sending / reporting of arbitrary information from the UE to the BS) may also be performed using physical layer signaling (e.g., UCI), high-layer signaling (e.g., RRC signaling, MAC CE), specific signals / channels (e.g., PUCCH, PUSCH, PRACH, reference signals), or a combination thereof.

[0208] In the case where the above notification is performed through MAC CE, the MAC CE can also be identified by including a new LCID that is not specified in the existing standards in the MAC subheader.

[0209] When the notification is performed through UCI, the notification may be transmitted using PUCCH or PUSCH.

[0210] In addition, the notification of arbitrary information from the UE in the above-mentioned embodiments may be performed periodically, semi-continuously, or aperiodically.

[0211] [About application of each embodiment]

[0212] At least one of the above-mentioned embodiments may also be applied when a specific condition is met. The specific condition may be specified in a standard or may be notified to the UE / BS using a high-layer signaling / physical layer signaling.

[0213] At least one of the above-mentioned implementation modes may also be only for UE applications that report a specific UE capability (UE capability) or support the specific UE capability.

[0214] The specific UE capability may also represent at least one of the following:

[0215] Supporting specific processing / operation / control / information for at least one of the above embodiments (e.g., SBFD / BWP for SBFD),

[0216] Supports multiple frequency positions and bandwidth settings for one DL / UL BWP,

[0217] When the first DL / UL BWP is deactivated by the second DL / UL BWP being activated, it is supported to stop (temporarily suspend) the configured DL allocation and the configured UL grant type 2 (UL grant related to the type 2 configured grant) in the first BWP,

[0218] When the first DL / UL BWP is deactivated by activating the second DL / UL BWP, a report of HARQ-ACK associated with PDSCH reception before the BWP change in the time slot after the BWP change is supported,

[0219] When the first DL / UL BWP is deactivated by activating the second DL / UL BWP, repetition of sending / receiving PDSCH / PUSCH / PDCCH / PUCCH before and after the change of BWP,

[0220] Support multiple BWP pairs / sets (or multiple activated DL / UL BWPs),

[0221] • The number of supported pairs / sets of multiple BWPs (or multiple activated DL / UL BWPs).

[0222] In addition, the above-mentioned specific UE capabilities can be capabilities that are applied across all frequencies (commonly regardless of frequency), or capabilities for each frequency (for example, one or a combination of cells, bands, band combinations, BWPs, component carriers, etc.), or capabilities for each frequency range (for example, frequency range 1 (Frequency Range 1 (FR1)), FR2, FR3, FR4, FR5, FR2-1, FR2-2), or capabilities for each subcarrier spacing (SubCarrier Spacing (SCS)), or capabilities for each feature set (Feature Set (FS)) or each component carrier feature set (Feature Set Per Component-carrier (FSPC)).

[0223] Furthermore, the specific UE capability may be a capability applied across all duplex modes (commonly regardless of the duplex mode) or a capability for each duplex mode (eg, time division duplex (TDD) and frequency division duplex (FDD)).

[0224] In addition, at least one of the above-mentioned embodiments may also be applied when specific information associated with the above-mentioned embodiments (or the operation of the above-mentioned embodiments) is set / activated / triggered by the UE through high-layer signaling / physical layer signaling. For example, the specific information may also be information indicating activation of SBFD, any RRC parameter for a specific version (for example, Rel.18 / 19), etc.

[0225] Even when the UE does not support at least one of the above-mentioned specific UE capabilities or is not configured with the above-mentioned specific information, the UE may apply operations such as Rel.15 / 16.

[0226] (Note)

[0227] The following inventions are added to one embodiment of the present disclosure.

[0228] [Note 1]

[0229] A terminal having:

[0230] a receiving unit that receives first setting information related to a first downlink (DL) bandwidth part (BWP), second setting information related to a first uplink (UL) BWP, third setting information related to a second DL BWP, and fourth setting information related to a second UL BWP; and

[0231] a control unit, based on at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information, determining a setting of a specific channel across at least one of the first DL BWP and the first UL BWP, and at least one of the second DL BWP and the second UL BWP,

[0232] The second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first ULBWP and are time-division multiplexed with at least one of the first DL BWP and the first UL BWP. The second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

[0233] [Note 2]

[0234] A terminal as described in Appendix 1, wherein:

[0235] The control unit temporarily stops setting of a channel in at least one of the first DL BWP and the first UL BWP in at least one of the second DL BWP and the second UL BWP.

[0236] [Note 3]

[0237] A terminal as described in Supplement 1 or Supplement 2, wherein:

[0238] When the specific channel is repeatedly transmitted and set in at least one of the first DL BWP and the first UL BWP, the control unit performs the repeatedly transmitted in at least one of the second DL BWP and the second UL BWP.

[0239] [Note 4]

[0240] A terminal as described in any one of Notes 1 to 3, wherein:

[0241] At least one of the first DL BWP and the first UL BWP and at least one of the second DL BWP and the second UL BWP are allowed to be activated simultaneously.

[0242] (Wireless Communication System)

[0243] Hereinafter, a configuration of a wireless communication system according to an embodiment of the present disclosure will be described. In the wireless communication system, communication is performed using any one of the wireless communication methods according to the above-mentioned embodiments of the present disclosure or a combination thereof.

[0244] Figure 71 is a diagram showing an example of a schematic structure of a wireless communication system according to an embodiment. The wireless communication system 1 (may also be simply referred to as the system 1) may also be a system that implements communication using Long Term Evolution (LTE) standardized by the Third Generation Partnership Project (3GPP), the fifth generation mobile communication system New Radio (5GNR), or the like.

[0245] In addition, the wireless communication system 1 may also support dual connectivity (Multi-RAT Dual Connectivity (MR-DC)) between multiple radio access technologies (Radio Access Technology (RAT)). MR-DC may also include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (E-UTRA-NR Dual Connectivity (EN-DC))), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity (NE-DC))), etc.

[0246] In EN-DC, the base station (eNB) of LTE (E-UTRA) is the master node (Master Node (MN)), and the base station (gNB) of NR is the secondary node (Secondary Node (SN)). In NE-DC, the base station (gNB) of NR is the MN, and the base station (eNB) of LTE (E-UTRA) is the SN.

[0247] The wireless communication system 1 may also support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity (NR-NR Dual Connectivity (NN-DC)) where both MN and SN are NR base stations (gNB)).

[0248] The wireless communication system 1 may also include a base station 11 that forms a macro cell C1 with a relatively wide coverage, and a base station 12 (12a-12c) that is configured in the macro cell C1 and forms a small cell C2 that is narrower than the macro cell C1. The user terminal 20 may also be located in at least one cell. The configuration and number of each cell and user terminal 20 are not limited to the method shown in the figure. Hereinafter, when the base stations 11 and 12 are not distinguished, they are collectively referred to as base stations 10.

[0249] The user terminal 20 may be connected to at least one of the plurality of base stations 10. The user terminal 20 may use at least one of carrier aggregation (CA) using a plurality of component carriers (CC) and dual connectivity (DC).

[0250] Each CC may also be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). The macro cell C1 may also be included in FR1, and the small cell C2 may also be included in FR2. For example, FR1 may be a frequency band below 6 GHz (below 6 GHz (sub-6 GHz)), and FR2 may be a frequency band higher than 24 GHz (above-24 GHz). In addition, the frequency bands and definitions of FR1 and FR2 are not limited to these. For example, FR1 may also correspond to a frequency band higher than FR2.

[0251] Furthermore, the user terminal 20 may perform communication using at least one of time division duplex (TDD) and frequency division duplex (FDD) in each CC.

[0252] Multiple base stations 10 may also be connected by wire (e.g., optical fiber based on Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, when NR communication between base stations 11 and 12 is used as a backhaul, the base station 11 corresponding to the upper station may also be referred to as an Integrated Access Backhaul (IAB) donor, and the base station 12 corresponding to the relay station (relay) may also be referred to as an IAB node.

[0253] The base station 10 may be connected to the core network 30 via other base stations 10 or directly. The core network 30 may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0254] The core network 30 may also include, for example, user plane functions (User Plane Function (UPF)), access and mobility management function (Access and Mobility management Function (AMF)), session management function (Session Management Function (SMF)), unified data management (Unified Data Management (UDM)), application function (Application Function (AF)), data network (Data Network (DN)), location management function (Location Management Function (LMF)), maintenance and operation management (Operation, Administration and Maintenance (Management) (OAM)) and other network functions (Network Functions (NF)). In addition, multiple functions may be provided by one network node. In addition, communication with an external network (e.g., the Internet) may also be carried out via the DN.

[0255] The user terminal 20 may also be a terminal that supports at least one of communication modes such as LTE, LTE-A, and 5G.

[0256] In the wireless communication system 1, a wireless access method based on orthogonal frequency division multiplexing (OFDM) may be used. For example, in at least one of the downlink (DL) and the uplink (UL), cyclic prefix OFDM (CP-OFDM), discrete Fourier transform spread OFDM (DFT-s-OFDM), orthogonal frequency division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), etc. may be used.

[0257] The radio access scheme may also be referred to as a waveform. In addition, in the wireless communication system 1, other radio access schemes (for example, other single-carrier transmission schemes, other multi-carrier transmission schemes) may be used as the radio access schemes for UL and DL.

[0258] In the wireless communication system 1, a downlink shared channel (Physical Downlink Shared Channel (PDSCH)), a broadcast channel (Physical Broadcast Channel (PBCH)), a downlink control channel (Physical Downlink Control Channel (PDCCH)), etc. shared by each user terminal 20 can also be used as a downlink channel.

[0259] In addition, in the wireless communication system 1, an uplink shared channel (Physical Uplink Shared Channel (PUSCH)), an uplink control channel (Physical Uplink Control Channel (PUCCH)), a random access channel (Physical Random Access Channel (PRACH)), etc. shared by each user terminal 20 can also be used as an uplink channel.

[0260] The PDSCH transmits user data, high-layer control information, and system information blocks (SIB). The PUSCH also transmits user data, high-layer control information, and the like. In addition, the PBCH also transmits the master information block (MIB).

[0261] The PDCCH may also transmit lower layer control information. The lower layer control information may include, for example, downlink control information (Downlink Control Information (DCI)) including scheduling information of at least one of the PDSCH and the PUSCH.

[0262] In addition, the DCI for scheduling the PDSCH may also be referred to as DL allocation, DL DCI, etc., and the DCI for scheduling the PUSCH may also be referred to as UL grant, UL DCI, etc. In addition, the PDSCH may also be rewritten as DL data, and the PUSCH may also be rewritten as UL data.

[0263] In the detection of PDCCH, the control resource set (CORESET) and the search space can also be used. CORESET corresponds to the resources for searching DCI. The search space corresponds to the search area and search method of PDCCH candidates. A CORESET can also be associated with one or more search spaces. The UE can also monitor the CORESET associated with a search space based on the search space setting.

[0264] A search space may also correspond to a PDCCH candidate corresponding to one or more aggregation levels. One or more search spaces may also be referred to as a search space set. In addition, the "search space", "search space set", "search space setting", "search space set setting", "CORESET", "CORESET setting" and the like in the present disclosure may also be rewritten mutually.

[0265] Through PUCCH, uplink control information (uplink control information (UCI)) including at least one of channel state information (CSI), delivery confirmation information (e.g., also called hybrid automatic repeat request confirmation (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR) can also be transmitted. Through PRACH, random access preambles for establishing a connection with a cell can also be transmitted.

[0266] In the present disclosure, downlink, uplink, etc. may be expressed without “link.” In addition, various channels may be expressed without “Physical” at the beginning.

[0267] In the wireless communication system 1, a synchronization signal (Synchronization Signal (SS)), a downlink reference signal (Downlink Reference Signal (DL-RS)), etc. may also be transmitted. In the wireless communication system 1, a cell-specific reference signal (Cell-specific Reference Signal (CRS)), a channel state information reference signal (CSI-RS), a demodulation reference signal (DeModulation Reference Signal (DMRS)), a positioning reference signal (Positioning Reference Signal (PRS)), a phase tracking reference signal (Phase Tracking Reference Signal (PTRS)), etc. may also be transmitted as DL-RS.

[0268] The synchronization signal may be, for example, at least one of a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). A signal block including SS (PSS, SSS) and PBCH (and DMRS for PBCH) may also be referred to as SS / PBCH block, SS block (SS Block (SSB)), etc. In addition, SS, SSB, etc. may also be referred to as reference signals.

[0269] In addition, in the wireless communication system 1, as an uplink reference signal (Uplink Reference Signal (UL-RS)), a measurement reference signal (Sounding Reference Signal (SRS)), a demodulation reference signal (DMRS), etc. may also be transmitted. In addition, DMRS may also be called a user terminal specific reference signal (UE-specific Reference Signal).

[0270] (Base Station)

[0271] Figure 8 1 is a diagram showing an example of a structure of a base station involved in one embodiment. The base station 10 includes a control unit 110, a transmitting and receiving unit 120, a transmitting and receiving antenna 130, and a transmission path interface (transmission line interface) 140. In addition, the control unit 110, the transmitting and receiving unit 120, the transmitting and receiving antenna 130, and the transmission path interface 140 may each be provided with more than one.

[0272] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also assumed that the base station 10 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may also be omitted.

[0273] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, a control circuit, and the like that are described based on common knowledge in the technical field to which the present disclosure relates.

[0274] The control unit 110 may also control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc. using the transmission and reception unit 120, the transmission and reception antenna 130, and the transmission path interface 140. The control unit 110 may also generate data, control information, sequences, etc. to be sent as signals, and forward them to the transmission and reception unit 120. The control unit 110 may also perform call processing (setting, release, etc.) of communication channels, state management of the base station 10, management of wireless resources, etc.

[0275] The transmitting and receiving unit 120 may also include a baseband unit 121, a radio frequency (RF) unit 122, and a measuring unit 123. The baseband unit 121 may also include a transmitting processing unit 1211 and a receiving processing unit 1212. The transmitting and receiving unit 120 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter (phase shifter), a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field involved in the present disclosure.

[0276] The transmitting and receiving unit 120 may be configured as an integrated transmitting and receiving unit, or may be configured by a transmitting unit and a receiving unit. The transmitting unit may also be configured by a transmitting processing unit 1211 and an RF unit 122. The receiving unit may also be configured by a receiving processing unit 1212, an RF unit 122, and a measuring unit 123.

[0277] The transmitting / receiving antenna 130 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0278] The transmitting and receiving unit 120 may also transmit the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 120 may also receive the above-mentioned uplink channel, uplink reference signal, etc.

[0279] The transmitting and receiving unit 120 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0280] The sending and receiving unit 120 (sending processing unit 1211), for example, may also perform Packet Data Convergence Protocol (PDCP) layer processing, Radio Link Control (RLC) layer processing (e.g., RLC retransmission control), Medium Access Control (MAC) layer processing (e.g., HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 110, to generate a bit string to be sent.

[0281] The transmitting and receiving unit 120 (transmitting processing unit 1211) may also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing (filtering processing), discrete Fourier transform (DFT) processing (as needed), inverse fast Fourier transform (IFFT) processing), precoding, digital-to-analog conversion and other transmission processing on the bit string to be transmitted, and output a baseband signal.

[0282] The transmitting and receiving unit 120 (RF unit 122 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 130 .

[0283] On the other hand, the transmission and reception unit 120 (RF unit 122 ) may also perform amplification, filter processing, demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmission and reception antenna 130 .

[0284] The transmitting and receiving unit 120 (receiving processing unit 1212) may also apply receiving 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 the acquired baseband signal to obtain user data, etc.

[0285] The transmitting and receiving unit 120 (the measuring unit 123) may also implement measurements related to the received signal. For example, the measuring unit 123 may also perform radio resource management (RRM) measurements, channel state information (CSI) measurements, etc. based on the received signal. The measuring unit 123 may also measure received power (e.g., reference signal received power (RSRP)), received quality (e.g., reference signal received quality (RSRQ), signal to interference plus noise ratio (SINR), signal to noise ratio (SNR)), signal strength (e.g., received signal strength indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 110.

[0286] The transmission path interface 140 can also send and receive signals (return signaling) between devices included in the core network 30 (for example, a network node providing NF), other base stations 10, etc., and can also obtain and transmit user data (user plane data) and control plane data for the user terminal 20.

[0287] In addition, the transmission unit and the reception unit of the base station 10 in the present disclosure may also be constituted by at least one of the transmission and reception unit 120 , the transmission and reception antenna 130 , and the transmission path interface 140 .

[0288] The sending and receiving unit 120 may also send first setting information related to the first downlink (DL) bandwidth part (BWP) (setting information related to the DL BWP for non-SBFD), second setting information related to the first uplink (UL) BWP (setting information related to the UL BWP for non-SBFD), third setting information related to the second DL BWP (setting information related to the DLBWP for SBFD), and fourth setting information related to the second UL BWP (setting information related to the UL BWP for SBFD).

[0289] The control unit 110 may also use at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information to indicate the setting of a specific channel across at least one of the first DL BWP and the first UL BWP, and at least one of the second DL BWP and the second UL BWP.

[0290] The second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first ULBWP and are time-division multiplexed with at least one of the first DL BWP and the first UL BWP. The second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

[0291] (User terminal)

[0292] Fig. 9 2 is a diagram showing an example of a configuration of a user terminal according to an embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. In addition, the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may each be provided with one or more.

[0293] In addition, in this example, the functional blocks of the characteristic parts in this embodiment are mainly shown, and it is also conceivable that the user terminal 20 also has other functional blocks required for wireless communication. Part of the processing of each unit described below may be omitted.

[0294] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, a control circuit, and the like that are described based on common knowledge in the technical field to which the present disclosure relates.

[0295] The control unit 210 may also control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc. using the transmission and reception unit 220 and the transmission and reception antenna 230. The control unit 210 may also generate data, control information, sequences, etc. to be transmitted as signals, and forward them to the transmission and reception unit 220.

[0296] The transmitting and receiving unit 220 may also include a baseband unit 221, an RF unit 222, and a measuring unit 223. The baseband unit 221 may also include a transmitting processing unit 2211 and a receiving processing unit 2212. The transmitting and receiving unit 220 may be composed of a transmitter / receiver, an RF circuit, a baseband circuit, a filter, a phase shifter, a measuring circuit, a transmitting and receiving circuit, etc., which are described based on the common knowledge in the technical field involved in the present disclosure.

[0297] The transmitting and receiving unit 220 may be configured as an integrated transmitting and receiving unit, or may be configured as a transmitting unit and a receiving unit. The transmitting unit may also be configured as a transmitting processing unit 2211 and an RF unit 222. The receiving unit may also be configured as a receiving processing unit 2212, an RF unit 222, and a measuring unit 223.

[0298] The transmitting / receiving antenna 230 can be constituted by an antenna described based on common knowledge in the technical field involved in the present disclosure, such as an array antenna.

[0299] The transmitting and receiving unit 220 may also receive the above-mentioned downlink channel, synchronization signal, downlink reference signal, etc. The transmitting and receiving unit 220 may also transmit the above-mentioned uplink channel, uplink reference signal, etc.

[0300] The transmitting and receiving unit 220 may also use digital beamforming (eg, precoding), analog beamforming (eg, phase rotation), etc. to form at least one of a transmitting beam and a receiving beam.

[0301] The sending and receiving unit 220 (sending processing unit 2211) may also perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc. on the data, control information, etc. obtained from the control unit 210 to generate a bit string to be sent.

[0302] The transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform channel coding (which may also include error correction coding), modulation, mapping, filter processing, DFT processing (as needed), IFFT processing, precoding, digital-to-analog conversion and other transmission processing on the bit string to be transmitted, and output a baseband signal.

[0303] In addition, whether to apply DFT processing may also be based on the setting of transform precoding. For a certain channel (e.g., PUSCH), when transform precoding is valid (enabled), the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing in order to transmit the channel using a DFT-s-OFDM waveform. Otherwise, the transmitting and receiving unit 220 (transmitting processing unit 2211) may also perform DFT processing as the above-mentioned transmission processing without performing DFT processing.

[0304] The transmitting and receiving unit 220 (RF unit 222 ) may also perform modulation, filter processing, amplification, etc. on the baseband signal to a radio frequency band, and transmit the signal in the radio frequency band via the transmitting and receiving antenna 230 .

[0305] On the other hand, the transmission and reception unit 220 (RF unit 222 ) may perform amplification, filter processing, demodulation into a baseband signal, etc. on the signal in the radio frequency band received by the transmission and reception antenna 230 .

[0306] The sending and receiving unit 220 (receiving processing unit 2212) can also apply receiving processing 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 the obtained baseband signal to obtain user data, etc.

[0307] The transmitting and receiving unit 220 (measuring unit 223) may also perform measurements related to the received signal. For example, the measuring unit 223 may also perform RRM measurement, CSI measurement, etc. based on the received signal. The measuring unit 223 may also measure the received power (e.g., RSRP), the received quality (e.g., RSRQ, SINR, SNR), the signal strength (e.g., RSSI), the propagation path information (e.g., CSI), etc. The measurement results may also be output to the control unit 210.

[0308] In addition, the transmitting unit and the receiving unit of the user terminal 20 in the present disclosure may also be composed of at least one of the transmitting and receiving unit 220 and the transmitting and receiving antenna 230 .

[0309] The transmitting and receiving unit 220 may also receive first setting information related to a first downlink (DL) bandwidth part (BWP), second setting information related to a first uplink (UL) BWP, third setting information related to a second DL BWP, and fourth setting information related to a second UL BWP.

[0310] The control unit 210 may also determine the setting of a specific channel across at least one of the first DL BWP and the first UL BWP, and at least one of the second DL BWP and the second UL BWP based on at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information.

[0311] The second DL BWP and the second UL BWP may also be included in the frequency domain of at least one of the first DL BWP and the first UL BWP and be a BWP time-division multiplexed with at least one of the first DL BWP and the first UL BWP. The second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

[0312] The control unit 210 may temporarily stop setting of a channel in at least one of the first DL BWP and the first UL BWP in at least one of the second DL BWP and the second UL BWP.

[0313] When the specific channel is repeatedly transmitted and set in at least one of the first DL BWP and the first UL BWP, the control unit 210 may perform the repeatedly transmitted in at least one of the second DL BWP and the second UL BWP.

[0314] It is also possible to allow at least one of the first DL BWP and the first UL BWP and at least one of the second DL BWP and the second UL BWP to be activated simultaneously.

[0315] (Hardware structure)

[0316] In addition, the block diagram used in the description of the above-mentioned embodiment shows a block of a functional unit. These functional blocks (structural units) are implemented by any combination of at least one of hardware and software. In addition, the implementation method of each functional block is not particularly limited. That is, each functional block can be implemented by a device that is physically or logically combined, or two or more physically or logically separated devices can be directly or indirectly connected (for example, by wire, wireless, etc.) and implemented by these multiple devices. The functional block can also be implemented by combining the above-mentioned one device or the above-mentioned multiple devices with software.

[0317] Here, the functions include judging, deciding, determining, calculating, calculating, processing, deriving, investigating, searching, confirming, receiving, sending, outputting, accessing, solving, selecting, selecting, establishing, comparing, assuming, expecting, regarding, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, etc., but are not limited to these. For example, a functional block (structural unit) that implements a sending function may also be referred to as a transmitting unit, a transmitter, etc. Any one of them is as described above, and the implementation method is not particularly limited.

[0318] For example, a base station, a user terminal, etc. in one embodiment of the present disclosure may also function as a computer that performs processing of the wireless communication method of the present disclosure. Fig.101001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0319] In addition, in the present disclosure, the terms such as device, circuit, equipment, section, and unit can be interchanged. The hardware configuration of the base station 10 and the user terminal 20 may include one or more of the devices shown in the figure, or may exclude some of the devices.

[0320] For example, only one processor 1001 is shown, but there may be multiple processors. In addition, the processing may be performed by one processor, or may be performed by two or more processors simultaneously, sequentially, or in other ways. In addition, the processor 1001 may also be implemented by one or more chips.

[0321] The functions of the base station 10 and the user terminal 20 are realized, for example, by reading specific software (program) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls communication via the communication device 1004, or controls at least one of the reading and writing of data in the memory 1002 and the storage 1003.

[0322] The processor 1001 controls the entire computer by, for example, operating an operating system. The processor 1001 may also be composed of a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic device, a register, etc. For example, at least a part of the control unit 110 (210), the transmission and reception unit 120 (220), etc. described above may also be implemented by the processor 1001.

[0323] In addition, the processor 1001 reads a program (program code), a software module, data, etc. from at least one of the storage 1003 and the communication device 1004 to the memory 1002, and performs various processes based on them. As a program, a program that causes a computer to perform at least a part of the operations described in the above-mentioned embodiments can be used. For example, the control unit 110 (210) can also be implemented by a control program stored in the memory 1002 and operated in the processor 1001, and the other functional blocks can also be implemented in the same way.

[0324] The memory 1002 may also be a computer-readable recording medium, for example, composed of at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), or other appropriate storage media. The memory 1002 may also be referred to as a register, a cache, a main memory (main storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing the wireless communication method involved in one embodiment of the present disclosure.

[0325] The storage 1003 may also be a computer-readable recording medium, such as a flexible disk, a floppy disk, an optical disk (such as a compact disk (Compact Disc ROM (CD-ROM)), a digital versatile disk, a Blu-ray (Blu-ray) (registered trademark) disk), a removable disk, a hard disk drive, a smart card, a flash memory device (such as a card, a stick, a key drive), a magnetic stripe, a database, a server, or at least one of other appropriate storage media. The storage 1003 may also be referred to as an auxiliary storage device.

[0326] The communication device 1004 is hardware (transmitting and receiving device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as a network device, a network controller, a network card, a communication module, etc. In order to realize at least one of frequency division duplex (Frequency Division Duplex (FDD)) and time division duplex (Time Division Duplex (TDD)), the communication device 1004 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, the above-mentioned transmitting and receiving unit 120 (220), the transmitting and receiving antenna 130 (230), etc. may also be realized by the communication device 1004. The transmitting and receiving unit 120 (220) may also be realized by physically or logically separating the transmitting unit 120a (220a) and the receiving unit 120b (220b).

[0327] The input device 1005 is an input device that receives input from the outside (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.). The output device 1006 is an output device that performs output to the outside (e.g., a display, a speaker, a light emitting diode (LED) lamp, etc.). In addition, the input device 1005 and the output device 1006 may also be an integrated structure (e.g., a touch panel).

[0328] In addition, the processor 1001, the memory 1002 and other devices are connected via a bus 1007 for communicating information. The bus 1007 may be configured as a single bus or may be configured as different buses between the devices.

[0329] In addition, the base station 10 and the user terminal 20 may also be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and the hardware may be used to implement a part or all of each functional block. For example, the processor 1001 may also be implemented using at least one of these hardware.

[0330] (Variation)

[0331] In addition, the terms described in the present disclosure and the terms required for understanding the present disclosure may also be rewritten as terms having the same or similar meanings. For example, channels, code elements, and signals (signals or signaling) may also be rewritten with each other. In addition, a signal may also be a message. A reference signal may also be referred to as RS, and may also be referred to as a pilot, a pilot signal, etc. depending on the applied standard. In addition, a component carrier (CC) may also be referred to as a cell, a frequency carrier, a carrier frequency, etc.

[0332] A radio frame may also be composed of one or more periods (frames) in the time domain. Each period (frame) of the one or more periods (frames) constituting a radio frame may also be referred to as a subframe. Further, a subframe may also be composed of one or more time slots in the time domain. A subframe may also be a fixed time length (e.g., 1 ms) that is not dependent on a parameter set (numerology).

[0333] Here, the parameter set may also be a communication parameter applied in at least one of the transmission and reception of a certain signal or channel. For example, the parameter set may also represent at least one of the subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), the number of symbols per TTI, wireless frame structure, specific filtering processing performed by the transmitter and receiver in the frequency domain, specific windowing processing performed by the transmitter and receiver in the time domain, etc.

[0334] A time slot may also be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. In addition, a time slot may also be a time unit based on a parameter set.

[0335] A time slot may also contain multiple mini-slots. Each mini-slot may also be composed of one or more symbols in the time domain. In addition, a mini-slot may also be referred to as a sub-slot. A mini-slot may also be composed of a smaller number of symbols than a time slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may also be referred to as a PDSCH (PUSCH) mapping type B.

[0336] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols may also be referred to by their respective names. In addition, time units such as frames, subframes, time slots, mini-time slots, and symbols in the present disclosure may also be replaced with each other.

[0337] For example, a subframe may be referred to as a TTI, a plurality of consecutive subframes may be referred to as a TTI, and a time slot or a mini time slot may be referred to as a TTI. That is, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. In addition, the unit representing a TTI may be referred to as a time slot, a mini time slot, etc. instead of a subframe.

[0338] Here, TTI refers to, for example, the minimum time unit for scheduling in wireless communication. For example, in the LTE system, the base station schedules each user terminal to allocate wireless resources (frequency bandwidth, transmission power, etc. that can be used in each user terminal) in TTI units. In addition, the definition of TTI is not limited to this.

[0339] TTI can also be a transmission time unit for a data packet (transport block), code block, code word, etc. that has been channel-coded, and can also be a processing unit for scheduling, link adaptation, etc. In addition, when TTI is given, the time interval (for example, the number of symbols) to which a transport block, code block, code word, etc. is actually mapped can also be shorter than the TTI.

[0340] In addition, when a time slot or a mini time slot is called a TTI, one or more TTIs (i.e., one or more time slots or one or more mini time slots) may also be the minimum time unit of scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of scheduling may also be controlled.

[0341] A TTI having a time length of 1 ms may also be referred to as a normal TTI (TTI in 3GPP Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI may also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub time slot, a time slot, etc.

[0342] In addition, a long TTI (eg, normal TTI, subframe, etc.) may be rewritten as a TTI having a time length exceeding 1 ms, and a short TTI (eg, shortened TTI, etc.) may be rewritten as a TTI having a TTI length shorter than that of a long TTI and longer than 1 ms.

[0343] Resource Block (RB) is a resource allocation unit in the time domain and frequency domain, and may also include one or more consecutive subcarriers (subcarriers) in the frequency domain. The number of subcarriers included in an RB may also be the same regardless of the parameter set, for example, it may be 12. The number of subcarriers included in an RB may also be determined based on the parameter set.

[0344] In addition, an RB may also include one or more symbols in the time domain, and may also be the length of a slot, a mini-slot, a subframe, or a TTI. A TTI, a subframe, etc. may also be composed of one or more resource blocks, respectively.

[0345] In addition, one or more RBs may also be referred to as a physical resource block (Physical RB (PRB)), a sub-carrier group (Sub-Carrier Group (SCG)), a resource element group (Resource Element Group (REG)), a PRB pair, an RB pair, etc.

[0346] In addition, a resource block may be composed of one or more resource elements (RE). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0347] Bandwidth Part (BWP) (also referred to as partial bandwidth, etc.) can also represent a subset of contiguous common RBs (common resource blocks) for a parameter set in a carrier. Here, common RBs can also be identified by the index of the RB based on the common reference point of the carrier. PRBs can also be defined in a BWP and numbered within the BWP.

[0348] The BWP may include a UL BWP (BWP for UL) and a DL BWP (BWP for DL). For a UE, one or more BWPs may be configured in one carrier.

[0349] At least one of the set BWPs may be activated, and the UE may not assume that it will transmit or receive a specific signal / channel other than the activated BWP. In addition, "cell", "carrier", etc. in the present disclosure may also be rewritten as "BWP".

[0350] In addition, the above-mentioned structures such as radio frames, subframes, time slots, mini-time slots and symbols are only examples. For example, the number of subframes included in a radio frame, the number of time slots per subframe or radio frame, the number of mini-time slots included in a time slot, the number of symbols and RBs included in a time slot or mini-time slot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, and the cyclic prefix (CP) length can be changed in various ways.

[0351] In addition, the information, parameters, etc. described in the present disclosure may be represented by absolute values, relative values ​​relative to a specific value, or other corresponding information. For example, wireless resources may also be indicated by a specific index.

[0352] In the present disclosure, the names used for parameters, etc. are not limiting in all respects. Furthermore, the mathematical formulas, etc. using these parameters may be different from those explicitly disclosed in the present disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable names, and therefore, the various names assigned to these various channels and information elements are not limiting in all respects.

[0353] Information, signals, etc. described in the present disclosure may also be represented using any of a variety of different techniques. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be mentioned throughout the above description may also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0354] In addition, information, signals, etc. can be output in at least one of the following directions: from a higher layer (upper layer) to a lower layer (lower layer), and from a lower layer to a higher layer. Information, signals, etc. can also be input and output via multiple network nodes.

[0355] The input and output information, signals, etc. may be stored in a specific location (e.g., a memory), or may be managed using a management table. The input and output information, signals, etc. may be overwritten, updated, or added. The output information, signals, etc. may also be deleted. The input information, signals, etc. may also be sent to other devices.

[0356] The notification of information is not limited to the methods / implementations described in the present disclosure, and may also be performed by other methods. For example, the notification of information in the present disclosure may also be implemented through physical layer signaling (e.g., downlink control information (Downlink Control Information (DCI)), uplink control information (Uplink Control Information (UCI))), high-layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB)), System Information Block (SIB), etc.), Medium Access Control (MAC) signaling), other signals, or a combination thereof.

[0357] In addition, physical layer signaling may also be referred to as layer 1 / layer 2 (Layer 1 / Layer 2 (L1 / L2)) control information (L1 / L2 control signal), L1 control information (L1 control signal), etc. In addition, RRC signaling may also be referred to as an RRC message, such as an RRC connection establishment (RRC Connection Setup) message, an RRC connection reconstruction (RRC Connection Reconfiguration) message, etc. In addition, MAC signaling may also be notified using, for example, a MAC control element (MACControl Element (CE)).

[0358] Furthermore, notification of specific information (eg, notification of “it is X”) is not limited to explicit notification, but may be performed implicitly (eg, by not notifying the specific information or by notifying other information).

[0359] The determination may be made using a value represented by one bit (0 or 1), a true or false value (Boolean value) represented by true or false, or by comparison of numerical values ​​(eg, comparison with a specific value).

[0360] Whether software is called software, firmware, middle-ware, microcode, hardware description language, or other names, it should be broadly interpreted as meaning instructions, instruction sets, code, code segments, program code, program, sub-program, software module, application, software application, software package, routine, sub-routine, object, executable files, execution thread, procedure, function, etc.

[0361] In addition, software, instructions, information, etc. may also be sent and received via a transmission medium. For example, when the software is sent from a website, server, or other remote source using at least one of wired technology (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL), etc.) and wireless technology (infrared, microwave, etc.), at least one of these wired technology and wireless technology is included in the definition of transmission medium.

[0362] The terms "system" and "network" used in the present disclosure can be used interchangeably. "Network" may also refer to a device (eg, a base station) included in the network.

[0363] In the present disclosure, terms such as "precoding", "precoder", "weight (precoding weight)", "Quasi-Co-Location (QCL)", "Transmission Configuration Indication state (TCI state)", "spatial relation", "spatial domain filter", "transmit power", "phase rotation", "antenna port", "antenna port group", "layer", "number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angle", "antenna", "antenna element", and "panel" can be used interchangeably.

[0364] In the present disclosure, terms such as "base station (BS)", "wireless base station", "fixed station", "NodeB", "eNB (eNodeB)", "gNB (gNodeB)", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)")", "panel", "cell", "sector", "cell group", "carrier", and "component carrier" can be used interchangeably. There are also cases where base stations are referred to by terms such as macro cell, small cell, micro cell, and pico cell.

[0365] A base station can accommodate one or more (for example, three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can also provide communication services through a base station subsystem (for example, a small base station for indoor use (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a part or the entirety of the coverage area of ​​at least one of a base station and a base station subsystem that provides communication services within the coverage area.

[0366] In the present disclosure, the base station sending information to the terminal may also be rewritten with the base station instructing the terminal to control / operate based on the information.

[0367] In the present disclosure, terms such as “mobile station (MS)”, “user terminal”, “user device (User Equipment (UE))”, and “terminal” can be used interchangeably.

[0368] A mobile station may also be referred to as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, hand set, user agent, mobile client, client or several other appropriate terms.

[0369] At least one of the base station and the mobile station may also be referred to as a transmission device, a reception device, a wireless communication device, etc. In addition, at least one of the base station and the mobile station may be a device mounted on a moving object, a moving object body, etc.

[0370] The mobile body refers to a movable object, and the moving speed is arbitrary, and of course it also includes the situation where the mobile body stops. The mobile body includes, for example, vehicles, transport vehicles, cars, automatic two-wheeled vehicles (motorcycles), bicycles, connected cars, loading shovels, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trolleys, rickshaws, ships (ships and other watercrafts), airplanes, rockets, artificial satellites, drones, multi-rotor aircraft, quadcopters, balloons and objects carried on them, but are not limited to these. In addition, the mobile body can also be a mobile body that drives autonomously based on operating instructions.

[0371] The mobile object may be a means of transportation (e.g., a vehicle, an airplane, etc.), a mobile object that moves unmanned (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). In addition, at least one of the base station and the mobile station may include a device that does not necessarily move when performing communication operations. For example, at least one of the base station and the mobile station may also be an Internet of Things (IoT) device such as a sensor.

[0372] Fig.11 1 is a diagram showing an example of a vehicle according to an embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a shift lever 45, left and right front wheels 46, left and right rear wheels 47, an axle 48, an electronic control unit 49, various sensors (including a current sensor 50, a rotation speed sensor 51, an air pressure sensor 52, a vehicle speed sensor 53, an acceleration sensor 54, an accelerator pedal sensor 55, a brake pedal sensor 56, a shift lever sensor 57, and an object detection sensor 58), an information service unit 59, and a communication module 60.

[0373] The driving unit 41 is composed of at least one of an engine, a motor, or a combination of an engine and a motor. The steering unit 42 is composed of at least a steering wheel (also called a handlebar), and steers at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

[0374] The electronic control unit 49 is composed of a microprocessor 61, a memory (ROM, RAM) 62, and a communication port (for example, an input / output (IO) port) 63. Signals from various sensors 50-58 provided in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be referred to as an electronic control unit (ECU).

[0375] The signals from the various sensors 50-58 include a current signal from a current sensor 50 for sensing the current of the motor, a rotation speed signal of the front wheels 46 / rear wheels 47 obtained by a rotation speed sensor 51, an air pressure signal of the front wheels 46 / rear wheels 47 obtained by an air pressure sensor 52, a vehicle speed signal obtained by a vehicle speed sensor 53, an acceleration signal obtained by an acceleration sensor 54, a depression amount signal of the accelerator pedal 43 obtained by an accelerator pedal sensor 55, a depression amount signal of the brake pedal 44 obtained by a brake pedal sensor 56, an operation signal of the shift lever 45 obtained by a shift lever sensor 57, a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 58, and the like.

[0376] The information service unit 59 is composed of various devices such as a vehicle navigation system, an audio system, a speaker, a display, a television, and a radio for providing (outputting) various information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 59 uses information obtained from an external device via the communication module 60, etc. to provide various information / services (for example, multimedia information / multimedia services) to the occupants of the vehicle 40.

[0377] The information service unit 59 may include input devices for accepting input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.), and may also include output devices for implementing output to the outside (e.g., display, speaker, LED light, touch panel, etc.).

[0378] The driving assistance system unit 64 is composed of various devices for providing functions for preventing accidents or reducing the driving load of the driver, such as millimeter wave radar, light detection and ranging (LiDAR), camera, positioning device (for example, Global Navigation Satellite System (GNSS)), map information (for example, high-precision (High Definition (HD)) map, autonomous vehicle (AV) map, etc.), gyroscope system (for example, inertial measurement unit (Inertial Measurement Unit (IMU))), inertial navigation unit (Inertial Navigation System (INS)), etc.), artificial intelligence (Artificial Intelligence (AI)) chip, AI processor, and one or more ECUs that control these devices. In addition, the driving assistance system unit 64 sends and receives various information via the communication module 60 and realizes the driving assistance function or the autonomous driving function.

[0379] The communication module 60 can communicate with the microprocessor 61 and the structural elements of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) between the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and the various sensors 50-58 provided in the vehicle 40 via the communication port 63.

[0380] The communication module 60 can be controlled by the microprocessor 61 of the electronic control unit 49, and is a communication device that can communicate with an external device. For example, various information is sent and received with the external device via wireless communication. The communication module 60 can also be located either inside or outside the electronic control unit 49. The external device can also be, for example, the above-mentioned base station 10, user terminal 20, etc. In addition, the communication module 60 can also be, for example, at least one of the above-mentioned base station 10 and user terminal 20 (it can also function as at least one of the base station 10 and user terminal 20).

[0381] The communication module 60 may also transmit at least one of the signals from the various sensors 50-58 input to the electronic control unit 49, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 59 to an external device via wireless communication. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc. may also be referred to as an input unit that receives input. For example, the PUSCH transmitted through the communication module 60 may also include information based on the above input.

[0382] The communication module 60 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) transmitted from an external device, and displays it to the information service unit 59 provided in the vehicle. The information service unit 59 may also be referred to as an output unit for outputting information (for example, outputting information to a display, a speaker, etc. based on the PDSCH received by the communication module 60 (or data / information decoded from the PDSCH)).

[0383] In addition, the communication module 60 stores various information received from the external device in the memory 62 that can be used by the microprocessor 61. The microprocessor 61 can also control the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the various sensors 50-58, etc., which are provided in the vehicle 40, based on the information stored in the memory 62.

[0384] In addition, the base station in the present disclosure may also be rewritten as a user terminal. For example, the various methods / implementations of the present disclosure may also be applied to a structure in which the communication between a base station and a user terminal is rewritten as communication between multiple user terminals (for example, it may also be referred to as device-to-device (D2D)), vehicle-to-everything (V2X), etc.). In this case, it may also be set as a structure in which the user terminal 20 has the functions of the above-mentioned base station 10. In addition, terms such as "uplink" and "downlink" may also be rewritten as terms corresponding to inter-terminal communication (for example, "sidelink"). For example, uplink channels, downlink channels, etc. may also be rewritten as sidelink channels.

[0385] Likewise, the user terminal in the present disclosure may be rewritten as a base station. In this case, the base station 10 may have the functions of the user terminal 20 described above.

[0386] In the present disclosure, operations are assumed to be performed by a base station, and sometimes by its upper node depending on the situation. Obviously, in a network including one or more network nodes having a base station, various operations performed for communication with a terminal can be performed by a base station, one or more network nodes other than the base station (for example, Mobility Management Entity (MME)), Serving-Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0387] The various methods / implementations described in this disclosure may be used individually or in combination, and may be used in a switched manner as the method is executed. In addition, the processing procedures, sequences, flow charts, etc. of the various methods / implementations described in this disclosure may be reversed in order as long as they are not contradictory. For example, for the methods described in this disclosure, the elements of various steps are presented in an illustrative order, but are not limited to the specific order presented.

[0388] The various modes / implementations described in the present disclosure may be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG (x is, for example, an integer or a decimal)), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), systems using other appropriate wireless communication methods, and next-generation systems based on these enhancements, revisions, productions, or regulations. In addition, multiple systems may be combined (for example, LTE or LTE-A, combination with 5G, etc.) for application.

[0389] The phrase “based on” used in the present disclosure does not mean “based only on” unless otherwise specified. In other words, the phrase “based on” means both “based only on” and “based at least on”.

[0390] Any reference to an element using the terms "first", "second", etc. used in this disclosure does not fully define the amount or order of these elements. These terms can be used in this disclosure as a convenient method to distinguish between two or more elements. Therefore, reference to the first and second elements does not mean that only two elements can be used or that the first element must take precedence over the second element in some form.

[0391] The term "determining" used in this disclosure may include a variety of operations. For example, "determining" may also refer to situations where judging, calculating, computing, processing, deriving, investigating, looking up (e.g., searching in a table, database or other data structure), ascertaining, etc. are regarded as performing "determining".

[0392] In addition, “judgment (decision)” may also refer to situations where receiving (e.g., receiving information), transmitting (e.g., sending information), input (input), output (output), accessing (e.g., accessing data in a memory), etc. are regarded as making a “judgment (decision)”.

[0393] In addition, "judgment (decision)" can also be regarded as a situation where resolving, selecting, choosing, establishing, comparing, etc. are regarded as "judgment (decision)". That is, "judgment (decision)" can also be regarded as a situation where some actions are regarded as "judgment (decision)".

[0394] In addition, "judge (decide)" can also be rewritten as "assuming (assuming)", "expecting (expecting)", "considering (considering)" and so on.

[0395] The “maximum transmit power” described in the present disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power (the nominal UE maximum transmit power), or the rated maximum transmit power (the rated UE maximum transmit power).

[0396] The terms "connected", "coupled", or all their variations used in this disclosure refer to all direct or indirect connections or combinations between two or more elements, and may include the situation where one or more intermediate elements exist between two elements that are "connected" or "coupled" to each other. The combination or connection between elements may be physical, logical, or a combination thereof. For example, "connection" may also be rewritten as "access".

[0397] In the present disclosure, when two elements are connected, it is possible to consider being "connected" or "combined" to each other using one or more wires, cables, printed electrical connections, etc., and as several non-limiting and non-inclusive examples, being "connected" or "combined" to each other using electromagnetic energy with a wavelength in the wireless frequency domain, microwave region, light (both visible and invisible) region, etc.

[0398] In the present disclosure, the term "A is different from B" may also mean "A and B are different from each other". In addition, the term may also mean "A and B are different from C, respectively". The terms "separate" and "combined" may also be interpreted in the same manner as "different".

[0399] When the terms “include,” “including,” and variations thereof are used in the present disclosure, these terms have an inclusive meaning, similar to the term “comprising.” Furthermore, the term “or” used in the present disclosure does not have an exclusive OR meaning.

[0400] In the present disclosure, when an article is added by translation like a, an, and the in English, for example, the present disclosure may also include a case where the noun following the article is in plural form.

[0401] In the present disclosure, "below", "less than", "above", "more than", "equal to", etc. can also be rewritten with each other. In addition, in the present disclosure, sentences meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be rewritten with each other without being limited to the original degree, comparative degree and superlative degree. In addition, in the present disclosure, sentences meaning "good", "bad", "big", "small", "high", "low", "early", "late", "wide", "narrow", etc. can also be rewritten with each other as expressions attached with "ith" (i is an arbitrary integer) without being limited to the original degree, comparative degree and superlative degree (for example, "highest" can also be rewritten with "i-th highest").

[0402] In the present disclosure, “of”, “for”, “regarding”, “related to”, “associated with”, etc. may also be replaced by each other.

[0403] The invention involved in the present disclosure has been described in detail above, but it is obvious to those skilled in the art that the invention involved in the present disclosure is not limited to the embodiments described in the present disclosure. The invention involved in the present disclosure can be implemented as a modified and altered mode without departing from the gist and scope of the invention determined based on the description of the claims. Therefore, the description of the present disclosure is for the purpose of illustrative description and does not have any limiting meaning on the invention involved in the present disclosure.

Claims

1. A terminal having: a receiving unit, receiving first setting information related to a first downlink bandwidth part, i.e., a first DL BWP, second setting information related to a first uplink, i.e., a first UL BWP, third setting information related to a second DL BWP, and fourth setting information related to a second UL BWP; and a control unit, based on at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information, determining a setting of a specific channel across at least one of the first DL BWP and the first UL BWP, and at least one of the second DL BWP and the second UL BWP, The second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first UL BWP and are BWPs time-division multiplexed with at least one of the first DL BWP and the first UL BWP, and the second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

2. The terminal according to claim 1, wherein: The control unit temporarily stops setting of a channel in at least one of the first DL BWP and the first UL BWP in at least one of the second DL BWP and the second UL BWP.

3. The terminal according to claim 1, wherein: When the specific channel is repeatedly transmitted and set in at least one of the first DL BWP and the first UL BWP, the control unit performs the repeatedly transmitted in at least one of the second DL BWP and the second UL BWP.

4. The terminal according to claim 1, wherein: At least one of the first DL BWP and the first UL BWP and at least one of the second DL BWP and the second UL BWP are allowed to be activated simultaneously.

5. A wireless communication method, which is a wireless communication method of a terminal, comprising: receiving first setting information related to a first downlink bandwidth part, i.e., a first DL BWP, second setting information related to a first uplink, i.e., a first UL BWP, third setting information related to a second DL BWP, and fourth setting information related to a second UL BWP; and A step of determining a setting of a specific channel across at least one of the first DL BWP and the first UL BWP and at least one of the second DL BWP and the second UL BWP based on at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information, The second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first UL BWP and are BWPs time-division multiplexed with at least one of the first DL BWP and the first UL BWP, and the second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

6. A base station, comprising: a transmitting unit, transmitting first setting information related to a first downlink bandwidth part, i.e., a first DL BWP, second setting information related to a first uplink, i.e., a first UL BWP, third setting information related to a second DL BWP, and fourth setting information related to a second UL BWP; and a control unit, using at least one of the first setting information, the second setting information, the third setting information, and the fourth setting information, to indicate the setting of a specific channel across at least one of the first DL BWP and the first UL BWP, and at least one of the second DL BWP and the second UL BWP, The second DL BWP and the second UL BWP are included in the frequency domain of at least one of the first DL BWP and the first UL BWP and are BWPs time-division multiplexed with at least one of the first DL BWP and the first UL BWP, and the second DL BWP and the second UL BWP are frequency-division multiplexed with each other.

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