Terminal, wireless communication method, and base station

Abstract

To provide terminals, wireless communication methods, and base stations that improve the efficiency of resource utilization. [Solution] A terminal according to one aspect of the present disclosure includes a receiving unit that receives setting information for frequency division multiplexable resources and information for a reference signal, and a control unit that controls processing related to the reference signal based on at least one of the setting information for the resources, information for the reference signal, and a report of capability information related to the reference signal. According to one aspect of the present disclosure, the utilization efficiency of resources can be increased.

Description

Technical Field

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

Background Art

[0002] In a Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) was specified for the purpose of further high data rates, low latency, etc. (Non-Patent Document 1). Also, for the purpose of further large capacity and sophistication of LTE (Third Generation Partnership Project (3GPP) Release (Rel.) 8, 9), LTE-Advanced (3GPP Rel.10-14) was specified.

[0003] A successor system to LTE (for example, also referred to as 5th generation mobile communication system (5G), 5G+(plus), 6th generation mobile communication system (6G), New Radio (NR), 3GPP Rel.15 and later, etc.) is also under consideration.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

[0005] In future wireless communication systems (e.g., NR), it is anticipated that multiple terminals (user terminals, User Equipment (UEs)) will communicate in extremely high-density and high-traffic environments.

[0006] In this environment, it is anticipated that uplink (UL) resources will be insufficient compared to downlink (DL) resources.

[0007] However, previous NR specifications have not adequately considered methods for increasing uplink resources. If these methods cannot be properly controlled, system performance may deteriorate, such as increased latency and reduced coverage performance.

[0008] Therefore, one of the objectives of this disclosure is to provide a terminal, a wireless communication method, and a base station that improve the efficiency of resource utilization. [Means for solving the problem]

[0009] A terminal according to one aspect of the present disclosure includes a receiving unit that receives setting information for frequency division multiplexable resources and information for a reference signal, and a control unit that controls processing for the reference signal based on at least one of the setting information for the resources, information for the reference signal, and a report of capability information for the reference signal. [Effects of the Invention]

[0010] According to one aspect of this disclosure, the efficiency of resource utilization can be improved. [Brief explanation of the drawing]

[0011] [Figure 1] Figures 1A and 1B show an example of a slot configuration setting. [Figure 2]Figure 2 shows an example of an XDD configuration. [Figure 3] Figures 3A and 3B show examples of setting time-domain and frequency-domain resources for XDD operation. [Figure 4] Figure 4 shows an example of measurement in XDD resources. [Figure 5] Figures 5A and 5B show an example of the configuration of an XDD resource according to the first embodiment. [Figure 6] Figure 6 shows an example of a combination of DL reception and UL transmission that enables simultaneous transmission and reception according to the second embodiment. [Figure 7] Figures 7A and 7B show an example of the configuration of an XDD resource according to the third embodiment. [Figure 8] Figure 8 shows an example of a schematic configuration of a wireless communication system according to one embodiment. [Figure 9] Figure 9 shows an example of the configuration of a base station according to one embodiment. [Figure 10] Figure 10 shows an example of the configuration of a user terminal according to one embodiment. [Figure 11] Figure 11 shows an example of the hardware configuration of a base station and a user terminal according to one embodiment. [Figure 12] Figure 12 shows an example of a vehicle according to one embodiment. [Modes for carrying out the invention]

[0012] (Unlicensed band) In unlicensed bands (e.g., 2.4GHz, 5GHz, 6GHz, etc., also known as the unlicensed spectrum or shared spectrum), it is expected that multiple systems, such as Wi-Fi systems and systems supporting Licensed-Assisted Access (LAA) (LAA systems), will coexist. Therefore, collision avoidance and / or interference control of transmissions between these multiple systems is considered necessary.

[0013] In the LAA of an existing LTE system (e.g., Rel. 13), before transmitting data in an unlicensed band, a data transmitting device performs listening to check for the presence of transmissions from other devices (e.g., base stations, user terminals, Wi-Fi devices, etc.). Such listening may be referred to as Listen Before Talk (LBT), Clear Channel Assessment (CCA), carrier sense, channel sensing, sensing, channel access procedure, shared spectrum channel access procedure, Energy Detection (ED), etc.

[0014] The transmitting device may be, for example, a base station (which may also be referred to as a gNodeB (gNB), network (NW)) in the downlink (DL) and a user terminal (UE) in the uplink (UL). Also, the receiving device that receives data from the transmitting device may be, for example, a user terminal in the DL and a base station (NW) in the UL.

[0015] In the LAA of an existing LTE system, the transmitting device starts data transmission after a predetermined period (e.g., immediately or during a backoff period) after detecting that there is no transmission from other devices (idle state) in LBT.

[0016] The use of unlicensed bands is also being considered in future wireless communication systems (which are also referred to as 5G, 5G+, New Radio (NR), 3GPP Rel. 15 and later, etc.). An NR system using an unlicensed band may be referred to as an NR - Unlicensed (U) system, an NR LAA system, etc.

[0017] Dual Connectivity (DC) between licensed and unlicensed bands, and Stand-Alone (SA) for unlicensed bands may also be included in NR-U.

[0018] In NR-U, nodes (e.g., base stations, UEs) use LBT to confirm that the channel is idle before starting transmission, in order to coexist with other systems or operators.

[0019] In NR-U, a base station (e.g., gNB) or UE acquires a transmission opportunity (TxOP) and transmits when the LBT result is idle. The base station or UE does not transmit when the LBT result is busy (LBT-busy). The duration of the transmission opportunity may also be called the channel occupancy time (COT).

[0020] Note that LBT-idle may be interpreted as LBT success, and LBT-busy may be interpreted as LBT failure.

[0021] (XDD) Up to Rel.14, LTE primarily used Frequency Division Duplex (FDD), but also supported Time Division Duplex (TDD).

[0022] On the other hand, for NR from Rel.15 onwards, TDD was the main focus of consideration, while FDD was also supported at the same time (for example, migration of LTE bands).

[0023] In FDDs, DL reception and UL transmission can be performed simultaneously, which is preferable from the standpoint of reducing latency. On the other hand, in FDDs, the resource ratio of DL to UL is fixed (e.g., 1:1).

[0024] In TDD, it is possible to change the ratio of DL and UL resources. For example, in a typical environment where DL traffic is relatively high, it is possible to increase the amount of DL resources to improve DL throughput.

[0025] On the other hand, considering the transmission-to-reception time ratio using TDD up to Rel.16, there are cases where the opportunities to transmit UL signals / channels are fewer than the opportunities to receive DL signals / channels. In such cases, the UE may not be able to transmit UL signals / channels frequently, raising concerns about delays in the transmission of important UL signals / channels. Furthermore, because the opportunities to transmit UL signals are fewer than the opportunities to receive DL signals, signal / channel congestion during UL transmission is also a concern. In addition, since the time resources available for transmitting UL signals / channels are limited in TDD, the application of UL coverage extension techniques such as repetition transmission is also limited.

[0026] In future wireless communication systems (e.g., Rel.17 / 18 and beyond), the introduction of a division duplex method combining TDD and Frequency Division Duplex (FDD) for UL and DL is being considered.

[0027] The division-duplex method may also be called XDD (Cross Division Duplex). XDD may mean a duplex method that frequency-division multiplexes DL and UL (allowing simultaneous use of DL and UL) within one component carrier (CC) of the TDD band, or across multiple CCs. When the duplex method is applied to multiple CCs, it may mean that in the time resources where DL is available in one CC, UL is available in another CC. The multiple CCs may be CCs in the same band.

[0028] Figure 1A shows an example of a TDD configuration as defined up to Rel. 16. In the example shown in Figure 1A, the UE is configured with TDD slots / symbols using the bandwidth of one component carrier (CC) (which may also be called a cell or serving cell).

[0029] In the example shown in Figure 1A, the time ratio of DL slots to UL slots is 4:1. With this conventional TDD slot / symbol setting, sufficient UL time resources cannot be secured, which may lead to UL transmission delays and a decrease in coverage performance.

[0030] Figure 1B shows an example of an XDD configuration. In the example in Figure 1B, the resources used for receiving DL and the resources used for transmitting UL overlap in time within a single component carrier (CC). With such a resource configuration, UL resources can be secured, and the efficiency of resource utilization can be improved.

[0031] For example, as shown in the example in Figure 1B, by configuring DLs at both ends of the frequency domain in a 1CC and sandwiching UL resources between the DLs, it is possible to avoid and mitigate cross-link interference (CLI) with neighboring carriers. In addition, a guard region may be set at the boundary between the DL resources and the UL resources.

[0032] Considering the complexity of handling self-interference, it is conceivable that only base stations use DL and UL resources simultaneously. In other words, for resources where DL and UL overlap in time, one UE may use the DL resource while another UE uses the UL resource.

[0033] Figure 2 shows an example of an XDD configuration. In the example shown in Figure 2, a portion of the DL resources in the TDD band are used as UL resources, resulting in a configuration where DL and UL partially overlap in time.

[0034] In the example shown in Figure 2, during the DL-only period, each of the multiple UEs (UE#1 and UE#2 in Figure 2) receives the DL channel / signal.

[0035] Furthermore, during periods when DL and UL overlap in time, one UE (UE#1 in the example in Figure 2) receives the DL channel / signal, while another UE (UE#2 in the example in Figure 2) transmits the UL channel / signal. During this period, the base station performs simultaneous transmission and reception of DL and UL.

[0036] Furthermore, during UL-only periods, each of the multiple UEs transmits a UL channel / signal.

[0037] In existing NRs (e.g., those defined up to Rel. 15 / 16), DL frequency resources and UL frequency resources in a UE carrier are configured as DL Bandwidth Parts (BWPs) and UL BWPs, respectively. Switching between DL / UL frequency resources requires the configuration of multiple BWPs and a BWP adaptation mechanism.

[0038] Furthermore, in existing NRs, the time resources in the TDD carrier for UE are configured in the TDD settings as at least one of DL, UL, and Flexible (FL).

[0039] Methods for configuring time-domain and frequency-domain resources for XDD operation are being considered. For example, for UE#1 in Figure 2, the impact on the specification / UE can be minimized by configuring the XDD resources (the period during which DL and UL overlap) in the same way as existing DL resources (for example, by avoiding the use of the UL resource portion using frequency-domain resource allocation (FDRA)) (see Figure 3A).

[0040] Furthermore, for example, for UE#2 in Figure 2, the impact on the specification / UE can be minimized by configuring the XDD resources in the same way as existing UL resources (for example, by avoiding the use of the DL resource portion using Frequency Domain Resource Allocation (FDRA)) (see Figure 3B).

[0041] By the way, in the above XDD configuration, it is conceivable that the terminal performs a measurement (which may also be called a measurement operation).

[0042] However, when performing measurement operations in an XDD configuration, resource management problems may arise. For example, if at least one of the resources in the XDD configuration (in particular, a UL resource) is configured / directed to transmit a DL reference signal (e.g., at least one of the Synchronization Signal Block (SSB) and Channel State Information Reference Signal (CSI-RS)) and to measure the received signal strength (e.g., Received Signal Strength Indicator (RSSI)), the UE cannot perform measurement operations and UL transmission operations simultaneously.

[0043] Even in existing specifications (up to Rel.16), it is stipulated that UL transmission does not occur on symbols that are being measured by the UE.

[0044] On the other hand, if at least one of the resources to which the DL reference signal is transmitted and the resources to which the received signal strength is measured is set / instructed to be a DL resource in the XDD configuration, the UE can perform measurement on that DL resource.

[0045] However, in this case, there is concern that measurements on DL resources in an XDD configuration may be affected by UL transmission / power from nearby UEs.

[0046] Figure 4 shows an example of measurement in an XDD resource. In the example shown in Figure 4, an XDD resource is configured for multiple UEs (UE#1 and UE#2) as shown in Figure 2. As shown in Figure 2, in the XDD resource in Figure 4, UE#1 performs DL reception and UE#2 performs UL transmission.

[0047] In the example shown in Figure 4, UE#1 and UE#2 each have different time resources for performing measurement. In such cases, there has been insufficient consideration of how to implement the measurement process.

[0048] Furthermore, in future wireless communication systems (e.g., Rel.18 / 19 and beyond), it is being considered that DL reception and UL transmission will be performed (and supported) within the same time resources at the UE.

[0049] In this disclosure, DL reception and UL transmission in the same time resource, transmission and reception in which DL reception resources and UL transmission resources are frequency-division multiplexed (FDM), simultaneous transmission and reception operation, simultaneous transmission and reception, full duplex (FD) communication, subband non-overlapping full duplex, subband non-overlapping full duplex communication, XDD, XDD communication, XDD operation, time-frequency division multiplexing, time-frequency division multiplexing communication, and time-frequency division multiplexing operation may be interpreted as one another.

[0050] Subband non-overlapping full-duplex communication may be performed using the XDD resources described above.

[0051] In subband non-overlapping full-duplex communication, DL resources may perform at least one of the following: receiving data / control information from any cell, and performing measurement operations targeting multiple cells, including surrounding cells.

[0052] In subband non-overlapping full-duplex communication, a UL resource may perform at least one of the following: transmitting data / control information to any cell, and transmitting a UL reference signal (e.g., for measurement) and a PRACH (e.g., for random access).

[0053] In this type of subband non-overlapping full-duplex communication, the consideration of the signals / channels that a UE can simultaneously transmit and receive is insufficient.

[0054] For example, there is insufficient consideration as to whether the functions required of the UE are the same or different when it comes to whether it can simultaneously perform DL reception and UL transmission operations for measurement, and whether it can simultaneously transmit and receive data with the serving cell. Furthermore, there is insufficient consideration as to whether the functions required of the UE are the same or different when it comes to whether it can simultaneously transmit UL reference signals / random access channels for measurement, which utilize a beam different from the data, and perform DL reception operations, and whether it can simultaneously transmit and receive data with the serving cell.

[0055] Furthermore, it is being considered that the bands in which the XDD configuration is used (TDD bands) will include the frequency bands of the unlicensed band (which may also be called the unlicensed band, unlicensed TDD band, NR-Unlicensed(U) system, or shared spectrum).

[0056] However, methods for utilizing XDD in unlicensed frequency bands have not been sufficiently considered.

[0057] For example, when using XDD in an unlicensed frequency band, the following problems may occur if the UE starts UL transmission in a certain band (frequency resource) while the base station is performing DL transmission: Interference will occur if the UL transmission is initiated without performing LBT. • The received power of the DL channel / signal affects the bandwidth used for LBT, including the XDD resources, causing LBT for UL transmission to fail. Setting guard periods (time resources) and guard subcarriers (frequency resources) to avoid the above interference / LBT failures suppresses the efficiency of resource utilization.

[0058] If these considerations are insufficient, it may not be possible to adequately improve resource utilization efficiency, potentially leading to a decrease in system performance.

[0059] Therefore, the inventors of this invention conceived a method to solve the above problem.

[0060] The embodiments of this disclosure will be described in detail below with reference to the drawings. Each wireless communication method according to the embodiments may be applied individually or in combination.

[0061] In the following disclosure, “specific types” are described with the understanding that… are…, but are not limited to…. In this disclosure, … may mean any of … or any combination thereof (i.e., … may be interpreted as any of … or any combination thereof).

[0062] In this disclosure, "A / B" and "at least one of A and B" may be interpreted as mutually exclusive. In this disclosure, "A / B / C" may mean "at least one of A, B, and C".

[0063] In this disclosure, terms such as activate, deactivate, indicate, select, configure, update, and determine may be interpreted interchangeably. In this disclosure, terms such as support, control, controllable, operate, and operable may be interpreted interchangeably.

[0064] In this disclosure, Radio Resource Control (RRC), RRC parameters, RRC messages, higher-layer parameters, information elements (IE), settings, etc., may be interpreted interchangeably. In this disclosure, Medium Access Control elements (MAC Control Element (CE)), update commands, activation / deactivation commands, etc., may be interpreted interchangeably.

[0065] In this disclosure, the upper-layer signaling may be, for example, Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, or a combination thereof.

[0066] In this disclosure, MAC signaling may include, for example, MAC Control Elements (MAC CEs) and MAC Protocol Data Units (PDUs). Broadcast information may include, for example, Master Information Blocks (MIBs), System Information Blocks (SIBs), Remaining Minimum System Information (RMSIs), and Other System Information (OSIs).

[0067] In this disclosure, physical layer signaling may include, for example, Downlink Control Information (DCI) and Uplink Control Information (UCI).

[0068] In this disclosure, terms such as index, identifier (ID), indicator, and resource ID may be interpreted interchangeably. In this disclosure, terms such as sequence, list, set, group, cluster, and subset may be interpreted interchangeably.

[0069] In this disclosure, channel, signal, reference signal, and channel / signal may be interpreted interchangeably. Also, in this disclosure, DL channel / signal reception, DL reception, and DL transmission may be interpreted interchangeably. Also, in this disclosure, UL channel / signal transmission, UL transmission, and UL reception may be interpreted interchangeably.

[0070] In this disclosure, the terms "support," "supported," "control," "controllable," "operate," and "operable" may be interpreted as interchangeable.

[0071] In this disclosure, "assume / expect that it is not A" may be interpreted as "do not assume / expect that it is A".

[0072] (Wireless communication method) XDD resources may be configured / instructed to the UE using at least one of the following: upper layer signaling (RRC signaling / MAC CE) and physical layer signaling (DCI).

[0073] The higher-layer signaling may be a specific RRC parameter / MAC CE field. This specific RRC parameter / MAC CE field may be a parameter in the XDD configuration or a parameter in the TDD configuration.

[0074] In this disclosure, XDD resources may mean resources in which DL resources and UL resources overlap in time (FDM). Such overlap of DL resources and UL resources may mean that all DL resources and UL resources overlap, or that only some DL resources and UL resources overlap.

[0075] In each embodiment of this disclosure, measurement may mean at least one of the following: Radio Resource Management (RRM) measurement, CLI measurement, System Frame Number (SFN) and Frame Timing Difference measurement, Received Power / Received Quality (e.g., L1-RSRP / SINR) measurement, Channel Status Information (CSI) measurement, or Positioning measurement.

[0076] <First Embodiment> In the first embodiment, the measurement operation in the XDD resource will be described.

[0077] The UE may assume / expect that XDD resources will not be set for certain time resources related to the DL reference signal (e.g., a DL reference signal for measurement). Alternatively, the UE may not assume / expect that XDD resources will be set for certain time resources related to the DL reference signal (e.g., a DL reference signal for measurement).

[0078] The specific time resource associated with the DL reference signal may be, for example, at least one of the time resource to which the DL reference signal is mapped (e.g., a symbol), a specific number (e.g., 1) of time resources (e.g., symbols) that are temporally before or after the time resource to which the DL reference signal is mapped, and a time resource (e.g., a slot) that contains the DL reference signal.

[0079] The DL reference signal may be at least one of the following: SSB, CSI-RS, CSI-RS for mobility, RSSI measurement resource, and PRS.

[0080] For example, the time resources of a DL reference signal may be set by a higher-layer parameter / DCI. In this case, the UE may assume that no XDD resources are set for the set DL reference signal time resources (or a specific number of time resources that are temporally before / after that time resource, or the slots that contain that time resource).

[0081] Furthermore, the UE may assume / expect that XDD resources will be configured in specific time resources related to the DL reference signal.

[0082] In this case, the UE does not have to perform measurement (or report measurement based on DL reference signals) that overlap with the XDD resource in the time domain. Furthermore, the UE does not have to receive the DL reference signal. Also, the UE may ignore settings / instructions regarding the reception of DL reference signals.

[0083] The time resources / XDD resources of the DL reference signal may be set separately by the upper layer parameters / DCI. If a portion of the time resources of the DL reference signal overlap with the XDD resources, the UE does not have to perform measurement (or report measurement based on the DL reference signal). Alternatively, the UE may perform measurement (or report measurement based on the partial resources of the DL reference signal that do not overlap with the XDD resources.

[0084] Furthermore, the UE may report UE Capability Information regarding measurement in the XDD resource. This UE Capability Information may be defined by whether or not the UE is capable of performing measurement in the XDD resource.

[0085] If the UE reports the relevant UE capability information (e.g., information indicating that measurement is possible in the XDD resource), it may assume / expect that the XDD resource will be configured in the specific time resource associated with the DL reference signal.

[0086] The specific time resource associated with the DL reference signal may be, for example, at least one of the time resource to which the DL reference signal is mapped (e.g., a symbol), a specific number (e.g., 1) of time resources (e.g., symbols) that are temporally before or after the time resource to which the DL reference signal is mapped, and a time resource (e.g., a slot) that contains the DL reference signal.

[0087] The DL reference signal may be at least one of the following: SSB, CSI-RS, CSI-RS for mobility, RSSI measurement resource, and PRS.

[0088] Furthermore, the UE may determine whether to ignore XDD resource settings that overlap with DL reference signals based on specific upper-layer signaling. The UE may also determine to ignore XDD resource settings that overlap with DL reference signals if it receives specific upper-layer parameters.

[0089] Furthermore, the UE capability information may be specified for a specific frequency range (e.g., FR2), or it may be specified separately for each frequency range (e.g., FR1 / FR2 (FR2-1 / FR2-2)).

[0090] Figures 5A and 5B show examples of XDD resource settings according to the first embodiment. In the example shown in Figure 5A, XDD resources are not set for the symbol to which the DL reference signal is mapped. In the example shown in Figure 5A, XDD resources can be set for resources other than the symbol to which the DL reference signal is mapped.

[0091] In the example shown in Figure 5B, the XDD resource is not configured in the slot to which the DL reference signal is mapped. In the example shown in Figure 5B, the XDD resource can be configured in resources other than the slot to which the DL reference signal is mapped.

[0092] According to the first embodiment described above, even when using XDD resources, it becomes possible to perform measurement operations appropriately.

[0093] <Second Embodiment> In the second embodiment, UE capability information relating to subband non-overlapping full duplex will be described.

[0094] The UE may report UE capability information regarding subband non-overlapping full-duplex to the network (e.g., base stations).

[0095] The UE capability information may be defined by whether or not it supports subband non-overlapping full-duplex.

[0096] Subband non-overlapping full-duplex may be performed on the XDD resource.

[0097] The UE / base station may conform to at least one of the following embodiments 2-1 to 2-3.

[0098] Embodiment 2-1 Regarding UE capability information for subband non-overlapping full duplex, combinations of DL reception and UL transmission that can be simultaneously transmitted and received may be specified.

[0099] The DL reception may include the reception of a DL for measurement (a DL reference signal for measurement).

[0100] If a UE reports UE capability information regarding subband non-overlapping full-duplex, it may perform DL reception and UL transmission simultaneously for predefined DL reception and UL transmission combinations.

[0101] Embodiment 2-2 Regarding UE capability information (first capability information) for subband non-overlapping full duplex, combinations of DL reception and UL transmission that can be simultaneously transmitted and received may be specified.

[0102] The DL reception does not necessarily include the reception of a DL for measurement (a DL reference signal for measurement). In other words, the first capability information does not need to indicate that DL reception for measurement and UL transmission can be performed simultaneously.

[0103] If a UE reports UE capability information regarding subband non-overlapping full-duplex, it may perform DL reception and UL transmission simultaneously for predefined DL reception and UL transmission combinations.

[0104] In Embodiment 2-2, separate from the first capability information, UE capability information (second capability information) relating to subband non-overlapping full duplex may be defined. This second capability information may indicate that DL reception, including DL reception for measurement, and UL transmission can be performed simultaneously.

[0105] Embodiment 2-3 The UE may report whether or not it supports predefined DL reception and UL transmission combinations in its UE capability information regarding subband non-overlapping full duplex.

[0106] For example, a UE may report which of the predefined DL reception and UL transmission combinations it supports as part of its UE capability information for subband non-overlapping full duplex. In other words, UE capability information for subband non-overlapping full duplex may be defined by which of the predefined DL reception and UL transmission combinations it supports.

[0107] For example, a combination of DL reception and UL transmission may include a combination that includes the reception of a DL reference signal for measurement. Also, for example, a combination of DL reception and UL transmission may include a combination that includes the transmission of a UL reference signal (which may include PRACH) for measurement.

[0108] For example, capability information regarding whether or not simultaneous transmission and reception of combinations including the reception of a DL reference signal for measurement is supported, and capability information regarding whether or not simultaneous transmission and reception of combinations including the transmission of a UL reference signal for measurement (which may include PRACH), may be defined as separate capability information or as common capability information.

[0109] Figure 6 shows an example of a combination of DL reception and UL transmission that enables simultaneous transmission and reception according to the second embodiment.

[0110] In the above-described embodiment 2-1, the UE reporting UE capability information for subband non-overlapping full duplex may support all combinations specified in the specification.

[0111] In the above-described embodiment 2-2, the UE reporting UE capability information (e.g., first capability information) for subband non-overlapping full duplex may support all combinations defined in the specification that do not include the reception / transmission of the DL / UL reference signal for measurement.

[0112] In the embodiments 2-3 described above, the UE reporting UE capability information (e.g., first capability information) regarding subband non-overlapping full duplex may support a specific combination from all combinations defined in the specification.

[0113] In the example shown in Figure 6, DL reception is defined as DL data reception, DL control reception, measurement DL reference signal reception, and non-measurement DL reference signal reception, and UL transmission is defined as UL data transmission, UL control transmission, measurement UL reference signal transmission, and non-measurement UL reference signal transmission.

[0114] In this disclosure, DL data reception may be interpreted as DL data, PDSCH, and a signal transmitted using PDSCH.

[0115] In this disclosure, DL control reception may be interpreted as DL control information, PDCCH, CORESET, search space set, DCI, and signals transmitted using PDCCH.

[0116] In this disclosure, the reception of a measurement DL reference signal may be interpreted as a measurement DL reference signal, a synchronization signal, a synchronization signal block, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a CSI-RS for mobility, a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), a tracking reference signal (TRS), and at least one of the RSSI measurement resources.

[0117] In this disclosure, non-measurement DL reference signal reception may be interpreted as at least one of the non-measurement DL reference signal, synchronization signal, synchronization signal block, CRS, CSI-RS, CSI-RS for mobility, DMRS, PRS, PTRS, and TRS.

[0118] In this disclosure, UL data transmission may be interpreted as UL data, PUSCH, and signals transmitted using PUSCH.

[0119] In this disclosure, UL control transmission may be interpreted as UL control information, PUCCH, signals transmitted using PUCCH, and UCI.

[0120] In this disclosure, the measurement UL reference signal transmission may be interpreted as at least one of the measurement UL reference signal, the measurement reference signal (SRS), PRS, the demodulation reference signal (DMRS), PRACH, the random access channel, and PUSCH for the random access response.

[0121] In this disclosure, non-measurement UL reference signal transmission may be interpreted as at least one of SRS, PRS, DMRS, PRACH, random access channel, and PUSCH for random access response.

[0122] The example shown in Figure 6 demonstrates that the symbol "〇" is supported, while the symbol "×" is not.

[0123] In the example shown in Figure 6, simultaneous transmission and reception of arbitrary DL reception and UL transmission are supported for Embodiment 2-1 described above.

[0124] In the example shown in Figure 6, the above-described embodiment 2-2 supports simultaneous transmission and reception of combinations other than those including the reception of a measurement DL reference signal and transmission of a measurement UL reference signal.

[0125] As described in Embodiment 2-3 above, any combination among those shown in Figure 6 may or may not be supported.

[0126] For example, even if a UE reports UE capability information, it does not have to support a combination that includes receiving a measurement DL reference signal. Also, for example, even if a UE reports UE capability information, it does not have to support a combination that includes transmitting a measurement UL reference signal.

[0127] The UE may report UE capability information regarding whether transmission and reception are possible in the serving cell during the measurement gap. This capability information may be included in the UE capability information for subband non-overlapping full duplex described above, or it may be defined as separate capability information from the UE capability information for subband non-overlapping full duplex.

[0128] According to the second embodiment described above, even when using subband non-overlapping full duplex, the measurement operation can be appropriately controlled.

[0129] <Third Embodiment> The third embodiment describes the operation of XDD using the unlicensed band (shared spectrum).

[0130] The UE may receive information to configure / instruct the use of unlicensed bands.

[0131] The third embodiment is further subdivided into embodiments 3-1 and 3-2, which are described below. The UE may follow at least one of the methods described in embodiment 3-1 or 3-2.

[0132] Embodiment 3-1 In the unlicensed TDD band, the XDD resource does not need to be configured. In other words, the unlicensed TDD band does not need to be used in the XDD resource.

[0133] The UE may assume that the unlicensed TDD band is not used in the XDD resources.

[0134] XDD resources do not need to be configured in the unlicensed TDD band. In this case, the UE may receive information regarding the execution of LBT (sensing) in the unlicensed TDD band. This information may be information instructing to perform LBT or information instructing not to perform LBT.

[0135] An XDD resource may be configured in the unlicensed TDD band. In this case, the UE may decide not to perform LBT (sensing) and any UL transmissions in the unlicensed TDD band.

[0136] Embodiment 3-2 In an unlicensed TDD band, an XDD resource may be configured.

[0137] The UE may follow at least one of the embodiments 3-2-1 to 3-2-3 described below.

[0138] [Embodiment 3-2-1] For XDD resources in the unlicensed TDD band, FDM of DL / UL resources may be performed using the bandwidth of a specific frequency resource.

[0139] For XDD resources in the unlicensed TDD band, specific resources may be defined as the frequency resource width for DL ​​resources / UL resources (see Figure 7A).

[0140] UE may assume / expect / determine that certain resources will be used as the frequency resource width for DL ​​resources / UL resources for XDD resources in the unlicensed TDD band.

[0141] The specific resource in question may be the bandwidth (e.g., 20 MHz) on which LBT (sensing) is performed. The specific resource in question may also be called a resource block set (RB set).

[0142] [Embodiment 3-2-2] In addition to the above embodiment 3-2-1, guard bands may be set at the boundaries between DL resources and UL resources in the XDD resource (see Figure 7B).

[0143] The bandwidth of the frequency resource of the guard band may be specified in advance, or it may be communicated to the UE via upper-layer signaling.

[0144] In this disclosure, the terms guard band, guard frequency, guard subcarrier, and frequency resource (band / subcarrier) for which no resource is set may be interpreted interchangeably.

[0145] [Embodiment 3-2-3] For XDD resources in the unlicensed TDD band, FDM of DL / UL resources may be performed using the bandwidth of a specific frequency resource.

[0146] For XDD resources in the unlicensed TDD band, specific resources may be defined as the frequency resource width for DL ​​resources / UL resources.

[0147] UE may assume / expect / determine that certain resources will be used as the frequency resource width for DL ​​resources / UL resources for XDD resources in the unlicensed TDD band.

[0148] The specific resource may have a bandwidth smaller than the bandwidth in which LBT (sensing) is performed (e.g., 20 MHz bandwidth). The specific resource may also have a bandwidth smaller than the resource block set (RB set). In other words, DL resources and DL resources may be FDM within the bandwidth in which LBT (sensing) is performed (e.g., 20 MHz bandwidth).

[0149] At least one of the embodiments 3-1 and 3-2 described above may be applied in common to a first unlicensed band (e.g., an unlicensed band in the 60 GHz band) and a second unlicensed band (e.g., an unlicensed band in the 5 / 6 GHz band).

[0150] At least one of the embodiments 3-1 and 3-2 described above may be applied separately to a first unlicensed band (e.g., an unlicensed band in the 60 GHz band) and a second unlicensed band (e.g., an unlicensed band in the 5 / 6 GHz band).

[0151] For example, in the first unlicensed band, setting up an XDD resource may be permitted in the case of channel access without LBT (sensing).

[0152] Furthermore, either embodiment 3-1 or 3-2 may be applied depending on whether the UE supports simultaneous transmission and reception (for example, whether or not it reports UE capability information regarding subband non-overlapping full duplex). For example, if the UE supports simultaneous transmission and reception, embodiment 3-2 may be applied.

[0153] According to the third embodiment described above, it is possible to prevent the occurrence of inappropriate interference in the unlicensed band due to XDD operation.

[0154] (Wireless communication system) The configuration of a wireless communication system according to one embodiment of this disclosure will be described below. In this wireless communication system, communication is performed using any or a combination thereof of the wireless communication methods according to the above embodiments of this disclosure.

[0155] Figure 8 shows an example of a schematic configuration of a wireless communication system according to one embodiment. The wireless communication system 1 may be a system that realizes communication using Long Term Evolution (LTE), 5th generation mobile communication system New Radio (5G NR), etc., as specified by the Third Generation Partnership Project (3GPP).

[0156] Furthermore, the wireless communication system 1 may support dual connectivity between multiple Radio Access Technologies (RATs) (Multi-RAT Dual Connectivity (MR-DC)). MR-DC may include dual connectivity between LTE (Evolved Universal Terrestrial Radio Access (E-UTRA)) and NR (E-UTRA-NR Dual Connectivity (EN-DC)), dual connectivity between NR and LTE (NR-E-UTRA Dual Connectivity (NE-DC)), and so on.

[0157] In EN-DC, the LTE (E-UTRA) base station (eNB) is the Master Node (MN), and the NR base station (gNB) is the Secondary Node (SN). In NE-DC, the NR base station (gNB) is the MN, and the LTE (E-UTRA) base station (eNB) is the SN.

[0158] The wireless communication system 1 may support dual connectivity between multiple base stations within the same RAT (for example, dual connectivity where both MN and SN are NR base stations (gNB) (NR-NR Dual Connectivity (NN-DC))).

[0159] The wireless communication system 1 may include a base station 11 that forms a macrocell C1 with relatively wide coverage, and base stations 12 (12a-12c) located within the macrocell C1 that form a small cell C2 that is narrower than the macrocell C1. User terminals 20 may be located within at least one cell. The arrangement and number of each cell and user terminal 20 are not limited to the configuration shown in the figure. Hereinafter, when base stations 11 and 12 are not distinguished, they will be collectively referred to as base station 10.

[0160] The user terminal 20 may be connected to at least one of the multiple base stations 10. The user terminal 20 may utilize at least one of Carrier Aggregation (CA) using multiple Component Carriers (CC) and Dual Connectivity (DC).

[0161] Each CC may be included in at least one of the first frequency band (Frequency Range 1 (FR1)) and the second frequency band (Frequency Range 2 (FR2)). A macrocell C1 may be included in FR1, and a small cell C2 may be included in FR2. For example, FR1 may be a frequency band of 6 GHz or less (sub-6 GHz), and FR2 may be a frequency band above 24 GHz (above-24 GHz). Note that the frequency bands and definitions of FR1 and FR2 are not limited to these, and for example, FR1 may fall in a frequency band higher than FR2.

[0162] Furthermore, the user terminal 20 may communicate using at least one of the following methods at each CC: Time Division Duplex (TDD) and Frequency Division Duplex (FDD).

[0163] Multiple base stations 10 may be connected by wire (e.g., optical fiber compliant with Common Public Radio Interface (CPRI), X2 interface, etc.) or wireless (e.g., NR communication). For example, if NR communication is used as a backhaul between base stations 11 and 12, base station 11, which is the upstream station, may be called an Integrated Access Backhaul (IAB) donor, and base station 12, which is the relay station, may be called an IAB node.

[0164] Base station 10 may be connected to the core network 30 via other base stations 10 or directly. The core network 30 may include at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), Next Generation Core (NGC), etc.

[0165] The user terminal 20 may be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0166] In the wireless communication system 1, an orthogonal frequency division multiplexing (OFDM)-based wireless access scheme may be used. For example, Cyclic Prefix OFDM (CP-OFDM), Discrete Fourier Transform Spread OFDM (DFT-s-OFDM), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), etc., may be used in at least one of the downlink (DL) and uplink (UL).

[0167] The wireless access method may also be called a waveform. In wireless communication system 1, other wireless access methods (for example, other single-carrier transmission methods, other multi-carrier transmission methods) may be used for the UL and DL wireless access methods.

[0168] In the wireless communication system 1, a Physical Downlink Shared Channel (PDSCH), a Broadcast Channel (PBCH), or a Physical Downlink Control Channel (PDCCH) may be used as the downlink channel, shared by each user terminal 20.

[0169] Furthermore, in the wireless communication system 1, the uplink channel may include a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH), or the like, all of which are shared by each user terminal 20.

[0170] User data, higher-layer control information, and System Information Blocks (SIBs) are transmitted via PDSCH. User data and higher-layer control information may also be transmitted via PUSCH. Furthermore, Master Information Blocks (MIBs) may be transmitted via PBCH.

[0171] Lower-layer control information may be transmitted by PDCCH. The lower-layer control information may include, for example, Downlink Control Information (DCI) which includes scheduling information for at least one of PDSCH and PUSCH.

[0172] Furthermore, the DCI that schedules PDSCH may be called a DL assignment or DL ​​DCI, and the DCI that schedules PUSCH may be called a UL grant or UL DCI. Furthermore, PDSCH may be interpreted as DL data, and PUSCH may be interpreted as UL data.

[0173] PDCCH detection may utilize a Control Resource Set (CORESET) and a search space. A CORESET corresponds to the resources used to search for DCIs. A search space corresponds to the search area and search method for PDCCH candidates. A single CORESET may be associated with one or more search spaces. The UE may monitor CORESETs associated with a particular search space based on the search space configuration.

[0174] A single search space may correspond to one or more PDCCH candidates corresponding to aggregation levels. One or more search spaces may be referred to as a search space set. In this disclosure, "search space," "search space set," "search space configuration," "search space set configuration," "CORESET," and "CORESET configuration" may be interpreted interchangeably.

[0175] PUCCH may transmit uplink control information (UCI) which includes at least one of the following: channel state information (CSI), delivery acknowledgment (e.g., Hybrid Automatic Repeat reQuest ACKnowledgement (HARQ-ACK), ACK / NACK, etc.), and scheduling request (SR). PRACH may transmit a random access preamble for establishing a connection with the cell.

[0176] In this disclosure, downlinks, uplinks, etc., may be expressed without the prefix "link." Also, the prefix "physical" may be omitted when describing various channels.

[0177] In the wireless communication system 1, a synchronization signal (SS), a downlink reference signal (DL-RS), etc., may be transmitted. In the wireless communication system 1, as DL-RS, a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), a positioning reference signal (PRS), a phase tracking reference signal (PTRS), etc., may be transmitted.

[0178] 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 be called an SS / PBCH block, SS Block (SSB), etc. SS, SSB, etc., may also be called reference signals.

[0179] Furthermore, in the wireless communication system 1, the Uplink Reference Signal (UL-RS) may transmit the Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), etc. The DMRS may also be called the User-Specific Reference Signal (UE-specific Reference Signal).

[0180] (base station) Figure 9 shows an example of the configuration of a base station according to one embodiment. The base station 10 includes a control unit 110, a transceiver unit 120, a transceiver antenna 130, and a transmission line interface 140. Note that one or more of the control unit 110, transceiver unit 120, transceiver antenna 130, and transmission line interface 140 may be provided.

[0181] In this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it may be assumed that the base station 10 also has other functional blocks necessary for wireless communication. Some of the processing of each part described below may be omitted.

[0182] The control unit 110 controls the entire base station 10. The control unit 110 can consist of a controller, control circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0183] The control unit 110 may control signal generation, scheduling (e.g., resource allocation, mapping), etc. The control unit 110 may also control transmission and reception, measurement, etc., using the transceiver unit 120, the transceiver antenna 130, and the transmission path interface 140. The control unit 110 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transceiver unit 120. The control unit 110 may also perform call processing of communication channels (setting, releasing, etc.), status management of the base station 10, management of radio resources, etc.

[0184] The transmitting / receiving unit 120 may include a baseband unit 121, a radio frequency (RF) unit 122, and a measurement unit 123. The baseband unit 121 may include a transmission processing unit 1211 and a reception processing unit 1212. The transmitting / receiving unit 120 can be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0185] The transmitting / receiving unit 120 may be configured as an integrated transmitting / receiving unit, or it may be composed of a transmitting unit and a receiving unit. The transmitting unit may consist of a transmitting processing unit 1211 and an RF unit 122. The receiving unit may consist of a receiving processing unit 1212, an RF unit 122 and a measuring unit 123.

[0186] The transmitting and receiving antenna 130 can be composed of an antenna described based on common understanding in the art relating to this disclosure, such as an array antenna.

[0187] The transmitting / receiving unit 120 may transmit the downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 120 may also receive the uplink channel, uplink reference signal, etc.

[0188] The transmitting / receiving unit 120 may form at least one of the transmitting beam and the receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0189] The transmitting / receiving unit 120 (transmission processing unit 1211) may perform processing on data and control information acquired from the control unit 110, for example, at the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer (e.g., RLC retransmission control), the Medium Access Control (MAC) layer (e.g., HARQ retransmission control), etc., to generate a bit sequence to be transmitted.

[0190] The transmitting / receiving unit 120 (transmission processing unit 1211) may perform transmission processing on the bit sequence to be transmitted, such as channel coding (which may include error correction coding), modulation, mapping, filtering, discrete Fourier transform (DFT) processing (if necessary), inverse fast Fourier transform (IFFT) processing, precoding, and digital-to-analog conversion, and output a baseband signal.

[0191] The transmitting / receiving unit 120 (RF unit 122) may perform modulation, filtering, amplification, etc., of the baseband signal to the radio frequency band and transmit the signal in the radio frequency band via the transmitting / receiving antenna 130.

[0192] On the other hand, the transmitting / receiving unit 120 (RF unit 122) may perform amplification, filtering, demodulation to a baseband signal, etc., on the radio frequency band signal received by the transmitting / receiving antenna 130.

[0193] The transmitting / receiving unit 120 (receiving processing unit 1212) may apply reception processing to the acquired baseband signal, such as analog-to-digital conversion, Fast Fourier Transform (FFT) processing, Inverse Discrete Fourier Transform (IDFT) processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing, to acquire user data, etc.

[0194] The transmitting / receiving unit 120 (measurement unit 123) may perform measurements related to the received signal. For example, the measurement unit 123 may perform Radio Resource Management (RRM) measurements, Channel State Information (CSI) measurements, etc., based on the received signal. The measurement unit 123 may also measure received power (e.g., Reference Signal Received Power (RSRP)), reception quality (e.g., Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR), Signal to Noise Ratio (SNR)), signal strength (e.g., Received Signal Strength Indicator (RSSI)), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 110.

[0195] The transmission path interface 140 may send and receive signals (backhaul signaling) with devices included in the core network 30, other base stations 10, etc., and may acquire and transmit user data (user plane data), control plane data, etc. for the user terminal 20.

[0196] In this disclosure, the transmitting and receiving units of the base station 10 may consist of at least one of a transmitting / receiving unit 120, a transmitting / receiving antenna 130, and a transmission path interface 140.

[0197] The transmitting / receiving unit 120 may transmit setting information for a frequency-division multiplexable resource (XDD resource) consisting of a downlink (DL) resource and an uplink (UL) resource, and information regarding the time resource of the DL reference signal for measurement. The control unit 110 may set up a measurement based on the DL reference signal for measurement using at least one of the resource setting information, the time resource information, and a report of capability information regarding the measurement of the DL reference signal for measurement (first embodiment).

[0198] The transmitting / receiving unit 120 may receive capability information indicating whether simultaneous transmission and reception of a specific downlink (DL) signal and a specific uplink (UL) signal is possible. The control unit 110 may control the simultaneous transmission and reception of the specific DL signal and the specific UL signal in a resource (XDD resource) in which the DL resource and the UL resource are frequency division multiplexed (second embodiment).

[0199] The transmitting / receiving unit 120 may transmit first configuration information regarding the use of frequencies to which shared spectrum channel access is applied, and second configuration information for configuring downlink (DL) resources and uplink (UL) resources as frequency division multiplexable resources (XDD resources). The control unit 110 may use the first configuration information and the second configuration information to configure the use of frequency division multiplexable resources at the frequencies to which the shared spectrum channel access is applied (third embodiment).

[0200] (User terminal) Figure 10 shows an example of the configuration of a user terminal according to one embodiment. The user terminal 20 includes a control unit 210, a transmitting / receiving unit 220, and a transmitting / receiving antenna 230. Note that one or more of the control unit 210, the transmitting / receiving unit 220, and the transmitting / receiving antenna 230 may be provided.

[0201] In this example, the functional blocks of the characteristic parts of this embodiment are mainly shown, and it may be assumed that the user terminal 20 also has other functional blocks necessary for wireless communication. Some of the processing of each part described below may be omitted.

[0202] The control unit 210 controls the entire user terminal 20. The control unit 210 can be composed of a controller, control circuit, etc., as described based on common understanding in the technical field related to this disclosure.

[0203] The control unit 210 may control signal generation, mapping, etc. The control unit 210 may also control transmission and reception, measurement, etc., using the transmitting / receiving unit 220 and the transmitting / receiving antenna 230. The control unit 210 may generate data to be transmitted as signals, control information, sequences, etc., and transfer them to the transmitting / receiving unit 220.

[0204] The transmitting / receiving unit 220 may include a baseband unit 221, an RF unit 222, and a measurement unit 223. The baseband unit 221 may include a transmission processing unit 2211 and a reception processing unit 2212. The transmitting / receiving unit 220 can be composed of a transmitter / receiver, RF circuit, baseband circuit, filter, phase shifter, measurement circuit, transmitting / receiving circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0205] The transmitting / receiving unit 220 may be configured as an integrated transmitting / receiving unit, or it may be composed of a transmitting unit and a receiving unit. The transmitting unit may consist of a transmitting processing unit 2211 and an RF unit 222. The receiving unit may consist of a receiving processing unit 2212, an RF unit 222 and a measuring unit 223.

[0206] The transmitting and receiving antenna 230 can be composed of an antenna described based on common understanding in the art relating to this disclosure, such as an array antenna.

[0207] The transmitting / receiving unit 220 may receive the downlink channel, synchronization signal, downlink reference signal, etc. The transmitting / receiving unit 220 may also transmit the uplink channel, uplink reference signal, etc.

[0208] The transmitting / receiving unit 220 may form at least one of the transmitting beam and the receiving beam using digital beamforming (e.g., precoding), analog beamforming (e.g., phase rotation), or the like.

[0209] The transmitting / receiving unit 220 (transmission processing unit 2211) may perform PDCP layer processing, RLC layer processing (e.g., RLC retransmission control), MAC layer processing (e.g., HARQ retransmission control), etc., on data and control information acquired from the control unit 210, etc., to generate a bit sequence to be transmitted.

[0210] The transmitting / receiving unit 220 (transmission processing unit 2211) may perform transmission processing on the bit sequence to be transmitted, such as channel coding (which may include error correction coding), modulation, mapping, filtering, DFT processing (if necessary), IFFT processing, precoding, and digital-to-analog conversion, and output a baseband signal.

[0211] Whether or not to apply DFT processing may be based on the transform precoding settings. The transmitting / receiving unit 220 (transmission processing unit 2211) may perform DFT processing as part of the transmission process to transmit a channel (for example, PUSCH) using a DFT-s-OFDM waveform if transform precoding is enabled for that channel, or it may not perform DFT processing as part of the transmission process if transform precoding is not enabled for that channel.

[0212] The transmitting / receiving unit 220 (RF unit 222) may perform modulation, filtering, amplification, etc., of the baseband signal to the radio frequency band and transmit the signal in the radio frequency band via the transmitting / receiving antenna 230.

[0213] On the other hand, the transmitting / receiving unit 220 (RF unit 222) may perform amplification, filtering, demodulation to a baseband signal, etc., on the radio frequency band signal received by the transmitting / receiving antenna 230.

[0214] The transmitting / receiving unit 220 (receiving processing unit 2212) may apply reception processing such as analog-to-digital conversion, FFT processing, IDFT processing (if necessary), filtering, demapping, demodulation, decoding (may include error correction decoding), MAC layer processing, RLC layer processing, and PDCP layer processing to the acquired baseband signal to acquire user data, etc.

[0215] The transmitting / receiving unit 220 (measuring unit 223) may perform measurements related to the received signal. For example, the measuring unit 223 may perform RRM measurement, CSI measurement, etc., based on the received signal. The measuring unit 223 may also measure received power (e.g., RSRP), received quality (e.g., RSRQ, SINR, SNR), signal strength (e.g., RSSI), propagation path information (e.g., CSI), etc. The measurement results may be output to the control unit 210.

[0216] In this disclosure, the transmitting and receiving units of the user terminal 20 may consist of at least one of a transmitting / receiving unit 220 and a transmitting / receiving antenna 230.

[0217] The transmitting / receiving unit 220 may receive setting information for a resource (XDD resource) that can be frequency-division multiplexed (XDD) for both downlink (DL) resources and uplink (UL) resources, and information regarding the time resource of the DL reference signal for measurement. The control unit 210 may control the measurement based on the DL reference signal for measurement based on at least one of the resource setting information, the time resource information, and a report of capability information regarding the measurement of the DL reference signal for measurement (first embodiment).

[0218] The control unit 210 may assume that no frequency-division multiplexable resources are set in the DL reference signal resources for measurement (first embodiment).

[0219] The control unit 210 may control the system so as not to perform measurements based on the DL reference signal resource for measurement in the overlapping time domain when the DL reference signal resource for measurement and the frequency division multiplexable resource overlap in the time domain (first embodiment).

[0220] When reporting capability information regarding the measurement of the DL reference signal for measurement, the control unit 210 may assume that the frequency-division multiplexable resources can be set in the time resources of the DL reference signal for measurement (first embodiment).

[0221] The transmitting / receiving unit 220 may transmit capability information indicating whether simultaneous transmission and reception of a specific downlink (DL) signal and a specific uplink (UL) signal is possible. The control unit 210 may control the simultaneous transmission and reception of the specific DL signal and the specific UL signal in a resource (XDD resource) in which the DL resource and the UL resource are frequency division multiplexed (second embodiment).

[0222] The specified DL signal may be any DL signal, and the specified UL signal may be any UL signal (second embodiment).

[0223] The specified DL signal may be a DL signal that does not include a DL reference signal for measurement, and the specified UL signal may be a UL signal that does not include a UL reference signal for measurement (second embodiment).

[0224] The transmitting / receiving unit 220 may transmit other capability information indicating whether the serving cell is capable of receiving the specific DL signal and transmitting the specific UL signal during the measurement gap period (second embodiment).

[0225] The transmitting / receiving unit 220 may receive first configuration information regarding the use of frequencies to which shared spectrum channel access is applied, and second configuration information for configuring downlink (DL) resources and uplink (UL) resources as frequency division multiplexable resources (XDD resources). The control unit 210 may control the use of frequency division multiplexable resources at the frequencies to which shared spectrum channel access is applied based on the first configuration information and the second configuration information (third embodiment).

[0226] The control unit 210 may assume that no frequency-division multiplexable resources are set in the resources (unlicensed TDD band) set by the first setting information (third embodiment).

[0227] The control unit 210 may assume that the frequency division multiplexable resource is set in the resource set by the first setting information. The DL resource and the UL resource may have a common specific bandwidth (third embodiment).

[0228] The control unit 210 may assume that the frequency division multiplexable resource is set in the resource set by the first setting information. The DL resource and the UL resource have a common specific bandwidth, and a guard frequency resource may be set at the boundary between the DL resource and the UL resource (third embodiment).

[0229] (Hardware configuration) The block diagrams used in the description of the above embodiments show functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or it may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wired or wireless connections). A functional block may also be realized by combining the above one device or the above multiple devices with software.

[0230] Here, functions include, but are not limited to, judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission may be called a transmitting unit or transmitter. In all cases, as mentioned above, the method of implementation is not particularly limited.

[0231] For example, a base station, user terminal, etc. in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. Figure 11 is a diagram showing an example of the hardware configuration of a base station and user terminal according to one embodiment. The base station 10 and user terminal 20 described above may be physically configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0232] In this disclosure, terms such as apparatus, circuit, device, section, and unit are interchangeable. 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 it may be configured without some of the devices.

[0233] For example, although only one processor 1001 is shown in the diagram, there may be multiple processors. Furthermore, processing may be performed by one processor, or by two or more processors simultaneously, sequentially, or by other means. Note that processor 1001 may be implemented using one or more chips.

[0234] Each function in the base station 10 and the user terminal 20 is realized, for example, by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, which allows the processor 1001 to perform calculations and control communication via the communication device 1004, or to control at least one of the reading and writing of data in the memory 1002 and storage 1003.

[0235] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may be composed of a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc. For example, at least a part of the control unit 110 (210) and the transmitting / receiving unit 120 (220) described above may be implemented by the processor 1001.

[0236] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes accordingly. The program used is one that causes the computer to execute at least a part of the operations described in the above embodiment. For example, the control unit 110 (210) may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and other functional blocks may be implemented similarly.

[0237] Memory 1002 is a computer-readable recording medium and may consist of at least one of the following: Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically EPROM (EEPROM), Random Access Memory (RAM), or other suitable storage medium. Memory 1002 may also be called a register, cache, or main memory. Memory 1002 can store executable programs (program code), software modules, etc., for carrying out a wireless communication method according to one embodiment of this disclosure.

[0238] Storage 1003 is a computer-readable recording medium and may consist of at least one of the following: a flexible disk, a floppy disk, a magneto-optical disk (e.g., a compact disk (Compact Disc ROM (CD-ROM)), a digital multipurpose disk, a Blu-ray disk), a removable disk, a hard disk drive, a smart card, a flash memory device (e.g., a card, stick, key drive), a magnetic stripe, a database, a server, or other suitable storage medium. Storage 1003 may also be called an auxiliary storage device.

[0239] The communication device 1004 is hardware (transmitting / 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, network controller, network card, communication module, etc. The communication device 1004 may be configured to include, for example, a high-frequency switch, duplexer, filter, frequency synthesizer, etc., in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmitting / receiving unit 120 (220), transmitting / receiving antenna 130 (230), etc., may be implemented by the communication device 1004. The transmitting / receiving unit 120 (220) may be implemented with physically or logically separated implementations of a transmitting unit 120a (220a) and a receiving unit 120b (220b).

[0240] The input device 1005 is an input device that accepts input from an external source (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to an external source (e.g., a display, speaker, light-emitting diode (LED) lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0241] Furthermore, each device, such as the processor 1001 and memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or different buses may be configured for each device.

[0242] Furthermore, the base station 10 and the user terminal 20 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), and a field programmable gate array (FPGA), and some or all of each functional block may be implemented using such hardware. For example, the processor 1001 may be implemented using at least one of these hardware components.

[0243] (modified version) In addition, terms used in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, channel, symbol, and signal (signal or signaling) may be used interchangeably. Also, a signal may be a message. A reference signal may be abbreviated as RS and may be called a pilot, pilot signal, etc., depending on the applicable standard. Also, a component carrier (CC) may be called a cell, frequency carrier, carrier frequency, etc.

[0244] A wireless frame may consist of one or more periods (frames) in the time domain. Each of these periods (frames) constituting a wireless frame may be called a subframe. Furthermore, a subframe may consist of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0245] Here, the neuralelogy may be communication parameters applied to at least one of the transmission and reception of a signal or channel. The neuralelogy may be, for example, at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processes performed by the transceiver in the frequency domain, or specific windowing processes performed by the transceiver in the time domain.

[0246] A slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols or Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols). Alternatively, a slot may be a time unit based on neurology.

[0247] A slot may include multiple mini-slots. Each mini-slot may consist of one or more symbols in the time domain. Mini-slots may also be called sub-slots. Mini-slots may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a mini-slot may be called a PDSCH (PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may be called a PDSCH (PUSCH) mapping type B.

[0248] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Wireless frames, subframes, slots, minislots, and symbols may each be referred to by different names. Furthermore, the units of time such as frames, subframes, slots, minislots, and symbols in this disclosure may be interpreted as interchangeable.

[0249] For example, one subframe may be called TTI, multiple consecutive subframes may be called TTI, or one slot or one mini-slot may be called TTI. In other words, at least one of the subframe and TTI may be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. Note that the unit representing TTI may be called a slot, mini-slot, etc., instead of a subframe.

[0250] Here, TTI refers to, for example, the smallest unit of time for scheduling in wireless communication. For example, in an LTE system, the base station schedules each user terminal to allocate wireless resources (such as the frequency bandwidth and transmission power available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0251] TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, code words, etc., or it may be a processing unit for scheduling, link adaptation, etc. Given a TTI, the actual time interval (e.g., number of symbols) to which the transport block, code block, code word, etc. are mapped may be shorter than the given TTI.

[0252] Furthermore, if one slot or one mini-slot is referred to as TTI, then one or more TTIs (i.e., one or more slots or one or more mini-slots) may constitute the minimum time unit of scheduling. In addition, the number of slots (number of mini-slots) that constitute the minimum time unit of scheduling may be controlled.

[0253] A TTI with a time length of 1 ms may also be called a normal TTI (TTI in 3GPP Rel.8-12), a long TTI, a normal subframe, a long subframe, or a slot. A TTI shorter than a normal TTI may also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini slot, a sub slot, or a slot.

[0254] Furthermore, long TTIs (e.g., normal TTIs, subframes, etc.) may be interpreted as TTIs with a time length exceeding 1 ms, and short TTIs (e.g., shortened TTIs, etc.) may be interpreted as TTIs with a TTI length less than that of a long TTI but 1 ms or more.

[0255] A Resource Block (RB) is a resource allocation unit in the time domain and frequency domain, and in the frequency domain, it may contain one or more consecutive subcarriers. The number of subcarriers in an RB may be the same regardless of the neurology, for example, 12. The number of subcarriers in an RB may be determined based on the neurology.

[0256] Furthermore, an RB may contain one or more symbols in the time domain and may have the length of one slot, one minislot, one subframe, or one TTI. Each TTI, subframe, etc., may consist of one or more resource blocks.

[0257] One or more RBs may also be called Physical RBs (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0258] Furthermore, a resource block may consist of one or more resource elements (REs). For example, one RE may be a radio resource area comprising one subcarrier and one symbol.

[0259] A Bandwidth Part (BWP) (also called a partial bandwidth) may represent a subset of consecutive common resource blocks (RBs) for a given neurology in a given carrier. Here, the common RBs may be identified by an index of the RBs relative to the carrier's common reference point. PRBs may be defined and numbered within a BWP.

[0260] A BWP may include UL BWPs (BWPs for UL) and DL BWPs (BWPs for DL). One or more BWPs may be configured within a single carrier for a UE.

[0261] At least one of the configured BWPs may be active, and the UE does not need to assume that it will send or receive a given signal / channel outside of the active BWP. In this disclosure, terms such as "cell" and "carrier" may be read as "BWP".

[0262] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative examples. For instance, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots within a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0263] Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or corresponding other information. For example, wireless resources may be indicated by a predetermined index.

[0264] The names used for parameters and other elements in this disclosure are not restrictive in any way. Furthermore, mathematical formulas and other elements that use these parameters may differ from those expressly disclosed in this disclosure. Various channels (PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, and therefore, the various names assigned to these various channels and information elements are not restrictive in any way.

[0265] The information, signals, etc. described in this disclosure may be represented using any of the various different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0266] Furthermore, information, signals, etc., can be output from upper layers to lower layers and from lower layers to upper layers, or to at least one of the two. Information, signals, etc., may also be input and output via multiple network nodes.

[0267] Input and output information and signals may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information and signals may be overwritten, updated, or appended to. Output information and signals may be deleted. Input information and signals may be transmitted to other devices.

[0268] Information notification is not limited to the embodiments described herein and may be carried out by other means. For example, information notification in this disclosure may be carried out by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB)), Medium Access Control (MAC) signaling), other signals, or a combination thereof).

[0269] Physical layer signaling may also be called Layer 1 / Layer 2 (L1 / L2) control information (L1 / L2 control signals), L1 control information (L1 control signals), etc. RRC signaling may also be called RRC messages, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc. MAC signaling may also be communicated using, for example, MAC Control Element (CE).

[0270] Furthermore, notification of the specified information (for example, notification that "X is the case") is not limited to explicit notification, but may also be made implicitly (for example, by not providing notification of the specified information or by providing notification of other information).

[0271] The determination may be made by a value represented by 1 bit (0 or 1), by a boolean value represented as true or false, or by a numerical comparison (for example, a comparison with a predetermined value).

[0272] Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so on, whether they are called software, firmware, middleware, microcode, hardware description languages, or by any other name.

[0273] Furthermore, software, instructions, information, etc., may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of wired technology (such as coaxial cable, fiber optic cable, twisted pair, or Digital Subscriber Line (DSL)) and wireless technology (such as infrared or microwave), then at least one of these wired and wireless technologies is included in the definition of a transmission medium.

[0274] The terms “system” and “network” as used in this disclosure may be used interchangeably. “Network” may also mean the equipment included in the network (e.g., base stations).

[0275] In this disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "quasi-co-location (QCL)," "transmission configuration indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," and "panel" may be used interchangeably.

[0276] In this 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" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0277] A base station can accommodate one or more (e.g., three) cells. When the base station accommodates multiple cells, the entire coverage area of the base station can be divided into multiple smaller areas, and each of the smaller areas can also provide communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The term "cell" or "sector" refers to a part or the whole of the coverage area of at least one of the base station and the base station subsystem that provides communication services in this coverage.

[0278] In the present disclosure, terms such as "Mobile Station (MS)", "user terminal", "User Equipment (UE)", and "terminal" can be used interchangeably.

[0279] A mobile station may also be called a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client or some other appropriate term.

[0280] At least one of the base station and the mobile station may also be called a transmitting device, a receiving device, a wireless communication device, etc. Note that at least one of the base station and the mobile station may also be a device mounted on a moving object, the moving object itself, etc.

[0281] The term "mobile object" refers to any movable object, regardless of its speed, and naturally includes cases where the mobile object is stationary. Examples of such mobile objects include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones, multicopters, quadcopters, balloons, and items carried on them. Furthermore, such mobile objects may be autonomously driven objects operating based on operational commands.

[0282] The mobile entity may be a vehicle (e.g., a car, an airplane), an unmanned mobile entity (e.g., a drone, an autonomous vehicle), or a robot (manned or unmanned). At least one of the base station and the mobile station may be a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an Internet of Things (IoT) device such as a sensor.

[0283] Figure 12 shows an example of a vehicle according to one embodiment. The vehicle 40 includes a drive unit 41, a steering unit 42, an accelerator pedal 43, a brake pedal 44, a 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, a pneumatic 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.

[0284] The drive unit 41 consists of, for example, at least one of an engine, a motor, or an engine-motor hybrid. The steering unit 42 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels 46 and the rear wheels 47 based on the operation of the steering wheel operated by the user.

[0285] The electronic control unit 49 consists of a microprocessor 61, memory (ROM, RAM) 62, and communication ports (e.g., input / output (IO) ports) 63. Signals from various sensors 50-58 installed in the vehicle are input to the electronic control unit 49. The electronic control unit 49 may also be called an Electronic Control Unit (ECU).

[0286] Signals from various sensors 50-58 include current signals from current sensor 50 for sensing motor current, rotational speed signals of front wheels 46 / rear wheels 47 acquired by rotational speed sensor 51, air pressure signals of front wheels 46 / rear wheels 47 acquired by air pressure sensor 52, vehicle speed signals acquired by vehicle speed sensor 53, acceleration signals acquired by acceleration sensor 54, accelerator pedal depression signal of accelerator pedal 43 acquired by accelerator pedal sensor 55, brake pedal depression signal of brake pedal 44 acquired by brake pedal sensor 56, operation signals of shift lever 45 acquired by shift lever sensor 57, and detection signals for detecting obstacles, vehicles, pedestrians, etc., acquired by object detection sensor 58.

[0287] The information service unit 59 consists of various devices for providing (outputting) various types of information such as driving information, traffic information, and entertainment information, including a car navigation system, audio system, speakers, displays, television, and radio, and one or more ECUs that control these devices. The information service unit 59 uses information acquired from external devices via a communication module 60 or the like to provide various types of information / services (e.g., multimedia information / multimedia services) to the occupants of the vehicle 40.

[0288] The information service unit 59 may include input devices that accept input from the outside (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that perform output to the outside (e.g., display, speaker, LED lamp, touch panel, etc.).

[0289] The driver assistance system unit 64 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, such as millimeter-wave radar, Light Detection and Ranging (LiDAR), cameras, positioning locators (e.g., Global Navigation Satellite System (GNSS)), map information (e.g., High Definition (HD) maps, Autonomous Vehicle (AV) maps), gyro systems (e.g., Inertial Measurement Unit (IMU), Inertial Navigation System (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 64 also transmits and receives various information via the communication module 60 to realize driver assistance functions or autonomous driving functions.

[0290] The communication module 60 can communicate with the microprocessor 61 and components of the vehicle 40 via the communication port 63. For example, the communication module 60 sends and receives data (information) via the communication port 63 to the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, the microprocessor 61 and memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50-58 provided in the vehicle 40.

[0291] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with external devices. For example, it can send and receive various types of information to and from external devices via wireless communication. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the base station 10 or the user terminal 20 described above. Alternatively, the communication module 60 may be, for example, at least one of the base station 10 and the user terminal 20 (it may function as at least one of the base station 10 and the user terminal 20).

[0292] The communication module 60 may transmit at least one of the following to an external device via wireless communication: signals from the various sensors 50-58 input to the electronic control unit 49, information obtained based on said signals, and information based on input from an external source (user) obtained via the information service unit 59. The electronic control unit 49, the various sensors 50-58, the information service unit 59, etc., may also be called input units that accept input. For example, the PUSCH transmitted by the communication module 60 may include information based on the above input.

[0293] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 59 installed in the vehicle. The information service unit 59 may also be called an output unit, which outputs information (for example, it outputs information to devices such as displays and speakers based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 60).

[0294] Furthermore, the communication module 60 stores various information received from external devices in a memory 62 that can be used by the microprocessor 61. Based on the information stored in the memory 62, the microprocessor 61 may control the drive unit 41, steering unit 42, accelerator pedal 43, brake pedal 44, shift lever 45, left and right front wheels 46, left and right rear wheels 47, axle 48, various sensors 50-58, etc., which are provided in the vehicle 40.

[0295] Furthermore, the term "base station" in this disclosure may be interpreted as "user terminal." For example, the various aspects / embodiments of this disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X)). In this case, the user terminal 20 may have the functions that the base station 10 has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "sidelink"). For example, uplink channel and downlink channel may be interpreted as sidelink channel.

[0296] Similarly, the term "user terminal" in this disclosure may be replaced with "base station." In this case, the base station 10 may be configured to have the same functions as the user terminal 20 described above.

[0297] In this disclosure, operations performed by a base station may, in some cases, be performed by its upper node. In a network including one or more network nodes with base stations, it is clear that various operations performed for communication with terminals may be performed by the base station, one or more network nodes other than the base station (for example, a Mobility Management Entity (MME), a Serving Gateway (S-GW), etc., but not limited to these), or a combination thereof.

[0298] Each aspect / embodiment described in this disclosure may be used individually, in combination, or switched between during execution. Furthermore, the processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described in this disclosure may be rearranged in order, provided they are consistent. For example, the methods described in this disclosure present various step elements in an exemplary order and are not limited to that specific order.

[0299] Each aspect / embodiment described in this disclosure includes 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 (where x is, for example, an integer or 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®), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), and IEEE This may apply to systems utilizing 802.20, Ultra-WideBand (UWB), Bluetooth®, or other appropriate wireless communication methods, as well as next-generation systems that are extended, modified, created, or defined based on these. It may also apply to combinations of multiple systems (e.g., a combination of LTE or LTE-A and 5G).

[0300] As used in this disclosure, the recitation "based on" does not mean "based solely on" unless otherwise specified. In other words, the recitation "based on" means both "based solely on" and "based at least in part on".

[0301] Any reference to an element using designations such as "first", "second", etc. used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Thus, a reference to first and second elements does not mean that only two elements may be employed or that the first element must precede the second element in any way.

[0302] The term "determining" as used in this disclosure may encompass a variety of operations. For example, "determining" may be considered to be "judging", "calculating", "computing", "processing", "deriving", "investigating", "looking up, searching, inquiring" (e.g., searching in a table, database or another data structure), "ascertaining", etc.

[0303] Also, "determining" may be considered to be "receiving" (e.g., receiving information), "transmitting" (e.g., transmitting information), "input", "output", "accessing" (e.g., accessing data in a memory), etc.

[0304] Furthermore, "judgment (decision)" can be considered as "judging (deciding)" something like resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment (decision)" can be considered as "judging (deciding)" something about an action.

[0305] Furthermore, "judgment (decision)" can be replaced with "assuming," "expecting," or "considering."

[0306] As used in this disclosure, the terms “connected,” “coupled,” and any variations thereof mean any direct or indirect connection or coupling between two or more elements, and may include one or more intermediate elements between two elements that are “connected” or “coupled” with each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, “connection” may be replaced with “access.”

[0307] In this disclosure, when two elements are connected, they can be considered to be “connected” or “coupled” to each other using one or more wires, cables, printed electrical connections, etc., and, in some non-exclusive and non-exclusive examples, electromagnetic energy having wavelengths in the radio frequency domain, microwave domain, or optical domain (both visible and invisible).

[0308] In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combine" may be interpreted similarly to "different."

[0309] Where the terms “include,” “including,” and variations thereof are used in this disclosure, these terms are intended to be inclusive, as is the term “comprising.” Furthermore, the term “or” as used in this disclosure is not intended to mean exclusive OR.

[0310] In this disclosure, if articles are added by translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0311] Although the invention described herein has been explained in detail above, it will be clear to those skilled in the art that the invention described herein is not limited to the embodiments described herein. The invention described herein can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined in the claims. Therefore, the descriptions herein are for illustrative purposes only and do not imply any limitation on the invention described herein.

Claims

1. A receiving unit that receives setting information for frequency division multiplexable resources and information about a reference signal, A terminal having a control unit that controls processing related to the reference signal based on at least one of the following: resource configuration information, information related to the reference signal, and a report of capability information related to the reference signal.

2. The steps include receiving configuration information for frequency division multiplexable resources and information about a reference signal, A wireless communication method for a terminal, comprising the step of controlling processing relating to the reference signal based on at least one of the following: setting information for the resource, information relating to the reference signal, and reporting capability information relating to the reference signal.

3. A transmitting unit that transmits setting information for frequency division multiplexable resources and information about a reference signal, A base station having a control unit that performs settings for processing the reference signal using at least one of the resource setting information, the reference signal information, and the report of capability information regarding the reference signal.

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