Terminals, wireless communication methods, base stations and systems

Abstract

The terminal according to one aspect of the present disclosure has: a reception unit that supports full-duplex communication, and receives information about measurement of interference from a signal transmitted from another terminal; and a control unit that controls the measurement of interference from the signal on the basis of the information. According to the one aspect of the present disclosure, it is possible to reduce interference and improve the efficiency of resource utilization.

Description

Technical Field

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

Background Art

[0002] In a Universal Mobile Telecommunications System (UMTS) network, Long Term Evolution (LTE) was standardized 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 standardized.

[0003] Successor systems 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.) are also being considered.

Prior Art Documents

Non-Patent Documents

[0004]

Non-Patent Document 1

Summary of the Invention

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

[0006] In this environment, one of the objectives being considered is to improve resource utilization efficiency by using full-duplex (FD) communication.

[0007] However, current NR specifications have not adequately considered communication methods that utilize floppy disks (FDs). If this method is not sufficiently considered, there is a risk of system performance degrading, such as increased latency and reduced coverage.

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

[0009] A terminal according to one aspect of this disclosure is a terminal that supports full-duplex communication and includes a receiving unit that receives information regarding the measurement of interference caused by signals transmitted from other terminals, and based on the said information, References sent from other devices A control unit that controls the measurement of interference by signals, and The full-duplex communication is a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) of a Time Division Duplex (TDD) band, wherein the reference signal is transmitted using at least one of the time resources when the UL resource is set in the same time resource as the DL resource, and when the DL resource is set in the same time resource as the UL resource, and the information is resource setting information of the reference signal including at least one of the time resources. . [Effects of the Invention]

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

[0011] [Figure 1] Figures 1A to 1E show an example of a duplex system. [Figure 2] Figures 2A and 2B are diagrams showing an example of self-interference and cross-link interference, respectively. [Figure 3] Figures 3A and 3B are diagrams showing an example of interference measurement of base stations according to Option 1-1 and Option 1-2, respectively. [Figure 4] Figures 4A and 4B are diagrams showing an example of interference measurement of base stations according to Option 2-1 and Option 2-2, respectively. [Figure 5] Figure 5 is a diagram showing an example of the schematic configuration of a wireless communication system according to an embodiment. [Figure 6] Figure 6 is a diagram showing an example of the configuration of a base station according to an embodiment. [Figure 7] Figure 7 is a diagram showing an example of the configuration of a user terminal according to an embodiment. [Figure 8] Figure 8 is a diagram showing an example of the hardware configuration of a base station and a user terminal according to an embodiment. [Figure 9] Figure 9 is a diagram showing an example of a vehicle according to an embodiment.

Embodiments for Carrying Out the Invention

[0012] In future wireless communication systems, higher required performance and diverse use cases are assumed.

[0013] As an example of diverse use cases, ultra coverage extension / ultra long distance communication, ultra high capacity, ultra reliable communication, virtual cell (User centric no cell), flexible network (Network (NW)), and mesh NW / sidelink, etc. can be considered. [[ID=​​​​​Regarding the method of initial access, designs in communication using the above various use cases and FDs are also being considered.

[0016] As the duplex mode, the methods shown in FIGS. 1A to 1E can be considered.

[0017] The base station and the UE communicate by temporally switching on the same frequency band between the uplink (UL) and the downlink (DL) (Time Division Duplex (TDD), see FIG. 1A). In this case, the base station and the UE do not perform FD operations.

[0018] The base station communicates with each UL and DL of multiple UEs by dividing the frequency at the same time (Frequency Division Duplex (FDD), see FIG. 1B). In this case, the base station performs FD operations, and the UE does not perform FD operations. Also, the UL frequency resource and the DL frequency resource do not overlap.

[0019] The base station communicates with each UL and DL of multiple UEs using the same time / frequency resource (performing spatial multiplexing) (see FIG. 1C). In this case, the base station performs FD operations, and the UE does not perform FD operations. Also, the UL frequency resource and the DL frequency resource (entirely or at least partially) overlap.

[0020] [[ID=一十九]] The base station communicates with the UL and DL of one UE by dividing the frequency at the same time (see FIG. 1D). In this case, the base station and the UE perform FD operations. Also, the UL frequency resource and the DL frequency resource do not overlap.

[0021] The base station communicates with each UL and DL of one UE using the same time / frequency resource (performing spatial multiplexing) (see FIG. 1E). In this case, the base station and the UE perform FD operations. Also, the UL frequency resource and the DL frequency resource (entirely or at least partially) overlap.

[0022] A Field Function (FD) in which the UL frequency resources and DL frequency resources do not overlap may be called a sub-band based FD. An FD in which the UL frequency resources and DL frequency resources overlap (in whole or in part) may be called a spectrum sharing FD.

[0023] (analysis) Regarding interference concerns when operating FD (floppy disk) systems, the following three cases (Cases 1 to 3) are the main possibilities.

[0024] [Case 1: Intra-node interference (self-interference)] When a base station (gNB) performs DL transmission and UL reception, and an UE performs DL reception and UL transmission, there is a possibility of interference between the UE's DL reception and its own UL transmission. Similarly, at this time, there is a possibility of interference between the gNB's UL reception and its own DL transmission (see Figure 2A).

[0025] For interference like that in Case 1, possible countermeasures depend on the node implementation, such as using interference cancellers or separating UL / DL antennas.

[0026] [Case 2: Inter-node interference (cross-link interference (CLI))] When multiple gNBs and multiple UEs perform DL / UL transmission and reception (see Figure 2B), there is a possibility that DL reception at one UE may interfere with UL transmission at another UE. Furthermore, at the same time, there is a possibility that UL reception at one gNB may interfere with DL transmission at another gNB.

[0027] In Case 2, since information can be exchanged between nodes, possible countermeasures include conducting interference measurements using RS at each node and using guard bands (XDD resources).

[0028] [Case 3: Interoperator Interference] Interference is possible in gNB / UE using different operators.

[0029] In Case 3, the exchange of information between nodes is difficult, making it difficult to use the countermeasures mentioned in Case 2.

[0030] As described above, methods for suppressing interference when introducing FD operation have not been sufficiently considered. If these considerations are insufficient, system performance may deteriorate, such as increased latency and reduced coverage performance, and resource utilization efficiency may decrease.

[0031] Therefore, the inventors conceived of an interference suppression method using FD (Field Destruction) with UE (Underground Equipment) / base stations.

[0032] 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.

[0033] 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".

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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).

[0038] In this disclosure, physical layer signaling may include, for example, Downlink Control Information (DCI) and Uplink Control Information (UCI).

[0039] 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.

[0040] In this disclosure, the terms used include: panel, UE panel, panel group, beam, beam group, precoder, Uplink (UL) transmit entity, Transmission / Reception Point (TRP), base station, Spatial Relation Information (SRI), spatial relationship, SRS Resource Indicator (SRI), Control Resource Set (CORESET), Physical Downlink Shared Channel (PDSCH), Codeword (CW), Transport Block (TB), Reference Signal (RS), antenna port (e.g., Demodulation Reference Signal (DMRS) port), antenna port group (e.g., DMRS port group), group (e.g., spatial relationship group, Code Division Multiplexing (CDM) group, reference signal group, CORESET group, Physical Uplink Control Channel (PUCCH) groups, PUCCH resource groups, resources (e.g., reference signal resources, SRS resources), resource sets (e.g., reference signal resource sets), CORESET pools, downlink Transmission Configuration Indication state (TCI state) (DL TCI state), uplink TCI state (UL TCI state), unified TCI state, common TCI state, quasi-co-location (QCL), QCL assumptions, etc., may be interpreted interchangeably.

[0041] In this disclosure, the terms node, base station, gNB, xNB (where x is any character), transmit / receive point (TRP), mobile station, terminal, and user terminal (user terminal, user equipment (UE)) may be interchangeable.

[0042] In this disclosure, the terms "time domain (period / part) in which DL and UL resources are simultaneously available within a specific number of CCs in the TDD band," "XDD (Cross Division Duplex)," "XDD portion," "XDD period," "XDD configuration," "first DL / UL portion," "first period," "period in which DL reception / UL transmission is restricted," "period in which DL and UL are mixed," and "period in which UL transmission is possible during a DL period" may be interpreted interchangeably. XDD may mean a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) in the TDD band (allowing simultaneous use of DL and UL).

[0043] DL / UL resources in the XDD portion may be interpreted as XDD DL / UL resources, XDD DL / UL, the first DL / UL resource, and the first DL / UL portion, respectively. DL / UL resources in the TDD band that do not overlap in time may be interpreted as non-XDD DL / UL resources, pure DL / UL resources, non-XDD DL / UL resources, the second DL / UL resource, the second DL / UL portion, the second period, etc. XDD operation may describe the operation during the period in which the XDD DL / UL resource is set, or it may describe the operation of the entire TDD in which XDD may be used.

[0044] Furthermore, in this disclosure, DL / UL BWP in the TDD band, DL / UL BWP as defined up to Rel. 15 / 16, and ordinary DL / UL BWP may be interpreted interchangeably.

[0045] In this disclosure, the XDD portion may mean at least one of the time resources in which a UL resource is configured with the same time resources as a DL resource, or the time resources in which a DL resource is configured with the same time resources as a UL resource. The XDD portion may also mean at least one of the time resources in which an FL resource (a resource available for DL ​​and UL) is configured with the same time resources as a DL resource, or the time resources in which an FL resource (a resource available for DL ​​and UL) is configured with the same time resources as a UL resource.

[0046] (Wireless communication method) In this disclosure, signal and channel may be interpreted as interchangeable. In this disclosure, signal, channel, signal / channel, DL receive, DL transmit, UL transmit, UL receive, reference signal, DL reference signal, and UL reference signal may be interpreted as interchangeable.

[0047] In this disclosure, the terms "interfered base station," "interfered base station," "base station identifying interference," and "base station measuring interference" may be interpreted interchangeably. In this disclosure, the terms "base station transmitting the signal / channel causing interference" and "interfering base station" may be interpreted interchangeably.

[0048] In this disclosure, settings for a base station may be configured from another base station (for example, using an X2 interface) or from a higher-level node (for example, a core network (CN)).

[0049] In this disclosure, configuration / instructions to the UE may be performed using configuration / instruction information from the base station, or using configuration / instruction information from another UE (e.g., an interfering UE).

[0050] A UE / base station may determine that interference has occurred if the received power / received quality / measurement result (e.g., RSRP / RSRQ / SINR) of a particular channel / reference signal falls below a certain threshold.

[0051] In this disclosure, "the UE / base station determines that it has been interfered with" may be interpreted as "the received power / received quality / measurement result of a specific channel / reference signal received by the UE / base station has become smaller than a specific threshold (below a specific threshold)."

[0052] For example, the specific channel / reference signal for the UE may be any DL channel / reference signal (e.g., PDSCH / PDCCH / PBCH / CSI-RS / SSB / SS). For example, the specific channel reference signal for the base station may be any UL channel / reference signal (e.g., PUSCH / PUCCH / SRS / PRACH).

[0053] Each embodiment described herein is effective as a countermeasure against interference in Case 2 described above.

[0054] <First Embodiment> In the first embodiment, a method for identifying interference between base stations (e.g., gNBs) is described.

[0055] The base station may identify interference in accordance with at least one of the following options 1-1 and 1-2.

[0056] 《Option 1-1》 The base station may receive signals / information for identifying / measuring interference.

[0057] The signal / information in question may be a signal / information transmitted from another base station.

[0058] The signal / information in question may be, for example, a specific reference signal.

[0059] The specific reference signal may be, for example, one of the signals described in at least one of options 1-1-A to 1-1-C below.

[0060] [Option 1-1-A] The specific reference signal may, for example, be a signal that is transmitted periodically.

[0061] The specific reference signal may be at least one of the following: a synchronization signal, a primary synchronization signal (PSS), a secondary synchronization signal (SSS), an SS / PBCH block, or a synchronization signal block (SSB).

[0062] A base station (for example, an interfered base station) may measure the specific reference signal based on opportunities / triggers / events related to the detection / confirmation of interference.

[0063] A base station may perform interference measurements using the same resources as its own transmission resources.

[0064] The base station may be configured with resources for performing interference measurements.

[0065] For example, if a base station measures SSB (SSB transmitted from other base stations) to measure interference, a window for interference measurement may be set.

[0066] In this disclosure, window, time window, time resource, occasion, and timing may be interpreted as mutually exclusive.

[0067] The window for interference measurement may be specified in advance by the specifications, set in advance for the base station, or set based on / in response to the request of the interfered base station. The window for interference measurement may be set for the base station as at least one of the SSB Transmission Configuration (STC) and the SSB-based Measurement Timing Configuration (SMTC).

[0068] The settings for the interference measurement window may be configured from another base station (for example, using the X2 interface) or from a higher-level node (for example, the core network (CN)).

[0069] A base station does not have to support FD operation. If an interfered base station does not support FD operation, it may, for example, set a reference signal with a transmission timing / transmission period different from the reference signal transmission timing / transmission period in the initial settings.

[0070] For example, a base station may receive configuration information regarding SSB for interference measurement. This configuration information may also be STC / SMTC for interference measurement.

[0071] This configuration information may be set at the request of the base station being interfered with. Based on this configuration information, the base station may receive a reference signal that is transmitted at a transmission timing / transmission period different from the reference signal transmission timing / transmission period in the initial settings.

[0072] [Option 1-1-B] The specific reference signal may, for example, be a signal transmitted using any resource.

[0073] The specific reference signal may be, for example, a DL reference signal (DL-RS) (set for the UE). The DL reference signal may be at least one of the following: a Cell-specific Reference Signal (CRS), a Channel State Information Reference Signal (CSI-RS), a DeModulation Reference Signal (DMRS), a Positioning Reference Signal (PRS), or a Phase Tracking Reference Signal (PTRS).

[0074] A base station (for example, an interfered base station) may measure the specific reference signal based on opportunities / triggers / events related to the detection / confirmation of interference.

[0075] The base station may be configured with resources for performing interference measurements.

[0076] For example, information about the resource may be pre-configured at the base station (e.g., during initial setup), or it may be configured based on / in response to a request from the base station. This configuration may be configured from another base station (e.g., using the X2 interface), or from a higher-level node (e.g., the core network (CN)).

[0077] The reference signal may be the reference signal transmitted by the UE at the appropriate time.

[0078] Furthermore, the reference signal may be transmitted at a different timing than that transmitted by the UE.

[0079] [Option 1-1-C] The specific reference signal may, for example, be a signal specifically for interference measurement.

[0080] A signal / channel for transmitting the signal in question may be defined. The signal in question may be transmitted from another base station or from the UE.

[0081] For example, the signal / channel in question may be a signal / channel in which only PSS / SSS is used.

[0082] A window / resource may be set up for measuring the signal in question.

[0083] The settings for the window / resource may also be configured according to the configuration methods described in at least one of options 1-1-A and 1-1-B above.

[0084] Figure 3A shows an example of interference measurement at a base station related to Option 1-1. In the example shown in Figure 3A, the interfered base station (gNB#1) measures interference based on the SSB transmitted from the interfering base station (gNB#2).

[0085] As described above, the SSB information sent from gNB#2 to gNB#1 may be pre-configured in gNB#1, or it may be configured based on / in response to a request from gNB#1.

[0086] In addition, in at least one of the above options 1-1-A to 1-1-C, the reference signal for interference measurement may be a reference signal transmitted from the base station being interfered with.

[0087] For example, if a base station determines that it has been subjected to interference, the base station itself may transmit a reference signal for interference measurement.

[0088] Base stations other than the base station that transmitted the reference signal for interference measurement may monitor / receive the reference signal in a specific window. This window may be pre-configured at the base station or may be configured based on / in response to a request from the interfered base station. This configuration may be configured by another base station (e.g., using the X2 interface) or by a higher-level node (e.g., the core network (CN)).

[0089] According to option 1-1, interference at the base station can be identified / measured based on the transmitted reference signal.

[0090] 《Options 1-2》 The base station may receive signals / information for identifying / measuring interference.

[0091] The signal / information in question may be a signal / information transmitted from another base station.

[0092] A base station may make a judgment about interference based on the location information of other base stations (which may also be called surrounding base stations).

[0093] For example, a base station (e.g., an interfered base station) may receive at least one of the following based on an opportunity / trigger / event related to the detection / acknowledgment of interference: location information of surrounding base stations and information about transmissions of surrounding base stations.

[0094] Information regarding transmissions from surrounding base stations may include, for example, at least one of the following: information regarding transmission power, information regarding transmission direction, information regarding the base station's beam, and information regarding the time / frequency of the transmitted signal / channel.

[0095] The location information of surrounding base stations may be pre-configured in the base station (for example, during initial setup). Alternatively, a base station may request the location information of surrounding base stations from a specific node / server.

[0096] The specific node / server may be, for example, at least one of a higher-level node (e.g., a core network (CN)), a surrounding base station, and a server related to location positioning (e.g., a Location Management Function (LMF)).

[0097] A base station (for example, an interfered base station) may identify the interfering base station based on at least one of the location information of surrounding base stations and information about transmissions by surrounding base stations.

[0098] A base station (for example, an interfered base station) may transmit specific information after identifying the interfering base station.

[0099] The specific information may, for example, be information regarding interference suppression. The specific information may be at least one of the following: information indicating a request for reduction of transmission power, or information indicating a request for restriction on the use of specific resources (e.g., spatial resources).

[0100] A base station that receives such specific information may transmit feedback information regarding that information.

[0101] Figure 3B shows an example of interference measurement at a base station related to Option 1-2. In the example shown in Figure 3B, the interfered base station (gNB#1) measures interference based on the location information and transmission information transmitted from the interfering base station (gNB#2).

[0102] According to option 1-2, interference at base stations can be identified and measured based on location information / transmission information of surrounding base stations.

[0103] According to the first embodiment described above, interference measurements at the base station can be performed appropriately even when FD operation is supported.

[0104] <Second Embodiment> In a second embodiment, a method for identifying interference between mobile stations (e.g., UEs) is described.

[0105] The UE may identify interference in accordance with at least one of the following options 2-1 and 2-2.

[0106] 《Option 2-1》 The UE may receive signals / information to identify / measure interference.

[0107] The signal / information in question may be a signal / information transmitted from another UE.

[0108] The signal / information in question may be, for example, a specific reference signal.

[0109] The specific reference signal may be, for example, one of the signals described in at least one of options 2-1-A and 2-1-B below.

[0110] [Option 2-1-A] The specific reference signal may, for example, be a signal transmitted using any resource.

[0111] The specific reference signal may be, for example, a UL reference signal (UL-RS) (set for the UE). The UL reference signal may be, for example, at least one of a Sounding Reference Signal (SRS), a Demodulation Reference Signal (DMRS), or a UE-specific Reference Signal.

[0112] A UE (e.g., the interfered UE) may perform measurements of the specific reference signal based on opportunities / triggers / events related to the detection / confirmation of interference.

[0113] The UE may have resources configured for performing interference measurements.

[0114] For example, information about the resource may be pre-configured in the UE (e.g., during initial access / RRC setup), or it may be configured based on / in response to a request from the UE.

[0115] This setting may be configured using upper-layer signaling (RRC / MAC CE), instructed using DCI, or notified to the UE using both upper-layer signaling and DCI.

[0116] The reference signal may be the reference signal transmitted by the UE at the appropriate time.

[0117] Furthermore, the reference signal may be a reference signal transmitted (by another UE) at a different timing than when the UE transmits it.

[0118] [Option 2-1-B] The specific reference signal may, for example, be a signal specifically for interference measurement.

[0119] A signal / channel for transmitting the signal in question may be defined. The signal in question may be a signal transmitted from another base station or a signal transmitted from another UE.

[0120] A window / resource may be set up for measuring the signal in question.

[0121] The settings for the window / resource may also be configured according to the setting method described in option 2-1-A above.

[0122] Figure 4A shows an example of interference measurement at a base station related to Option 2-1. In the example shown in Figure 4A, the interfered UE (UE#1) measures interference based on the SRS transmitted from the interfering UE (UE#2).

[0123] In addition, in at least one of the above options 2-1-A and 2-1-B, the reference signal for interference measurement may be a reference signal transmitted from the interfered UE.

[0124] For example, if a UE determines that it has been subjected to interference, the UE itself may transmit a reference signal for interference measurement.

[0125] UEs other than the UE that transmitted the reference signal for interference measurement may monitor / receive the reference signal in a specific window. This window may be pre-configured by the UE, or it may be configured at the request of the interfered UE.

[0126] This setting may be configured using upper-layer signaling (RRC / MAC CE), instructed using DCI, or notified to the UE using both upper-layer signaling and DCI.

[0127] According to Option 2-1, interference at the UE can be identified / measured based on the transmitted reference signal.

[0128] 《Option 2-2》 The UE may receive signals / information to identify / measure interference.

[0129] The signal / information in question may be a signal / information transmitted from another UE.

[0130] A UE may determine whether interference is occurring based on the location information of other UEs (which may be called surrounding UEs).

[0131] For example, a UE (e.g., an interfered UE) may receive at least one of the following based on an opportunity / trigger / event related to the detection / acknowledgment of interference: location information of surrounding UEs and information about transmissions by surrounding UEs.

[0132] Information regarding the transmission of surrounding UEs may include, for example, at least one of the following: information regarding the transmission power, information regarding the transmission direction, information regarding the UE's beam, and information regarding the time / frequency of the transmitted channel / signal.

[0133] The location information of surrounding UEs may be pre-configured in the UE (for example, during initial access / RRC setup). Alternatively, the UE may request the location information of surrounding UEs from a specific node / server.

[0134] The specific node / server may be, for example, at least one of a higher-level node (e.g., a core network (CN)), a surrounding UE, and a server related to location tracking (e.g., a Location Management Function (LMF)).

[0135] A UE (e.g., the interfered UE) may identify the interfering UE based on at least one of the location information of surrounding UEs and information about transmissions of surrounding UEs.

[0136] A UE (for example, an interfered UE) may transmit certain information after identifying the interfering UE.

[0137] The specific information may, for example, be information regarding interference suppression. The specific information may be at least one of the following: information indicating a request for reduction of transmission power, or information indicating a request for restriction on the use of specific resources (e.g., spatial resources).

[0138] A UE that receives such specific information may send feedback information regarding that information.

[0139] Figure 4B shows an example of interference measurement by a UE related to Option 2-2. In the example shown in Figure 4B, the interfered UE (UE#1) measures interference based on the position information and transmission information transmitted from the interfering UE (UE#2).

[0140] According to Option 2-2, interference at the UE can be identified and measured based on location / transmission information of surrounding UEs.

[0141] According to the second embodiment described above, interference measurements in the UE can be performed appropriately even when FD operation is supported.

[0142] <Other Embodiments> A higher-layer parameter (RRC IE) / UE capability may be defined corresponding to a feature in at least one of the above embodiments. The UE capability may indicate that it supports this feature.

[0143] A UE that has the corresponding higher-layer parameter (the parameter that enables the function) set may perform that function. It may also be stipulated that "a UE for which the corresponding higher-layer parameter is not set shall not perform that function (for example, in accordance with Rel. 15 / 16 / 17)."

[0144] A UE that reports its UE capability to support a particular function may perform that function. It may also be stipulated that "a UE that has not reported its UE capability to support a particular function shall not perform that function (for example, in accordance with Rel. 15 / 16 / 17)."

[0145] If the UE reports its capability to support a function and the corresponding higher-layer parameters are set, the UE may perform that function. It may also be stipulated that "if the UE does not report its capability to support a function, or if the corresponding higher-layer parameters are not set, the UE shall not perform that function (for example, in accordance with Rel. 15 / 16 / 17)."

[0146] UE capability may indicate whether the UE supports this feature or not.

[0147] The function may also involve receiving DL signals / channels and transmitting UL signals / channels within the same time resource.

[0148] UE capability may be defined by whether or not it supports receiving DL signals / channels and transmitting UL signals / channels within the same time resources.

[0149] UE capability may be defined by whether or not it supports the measurement of interference from other UEs.

[0150] According to the other embodiments described above, the UE can achieve the above functions while maintaining compatibility with existing specifications.

[0151] (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.

[0152] Figure 5 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).

[0153] 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.

[0154] 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.

[0155] 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))).

[0156] 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.

[0157] 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).

[0158] 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.

[0159] 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).

[0160] 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.

[0161] 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.

[0162] The user terminal 20 may be a terminal that supports at least one of the following communication methods: LTE, LTE-A, 5G, etc.

[0163] 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).

[0164] 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.

[0165] 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.

[0166] 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.

[0167] 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.

[0168] 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.

[0169] 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.

[0170] 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.

[0171] 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.

[0172] 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.

[0173] In this disclosure, downlinks, uplinks, etc., may be expressed without the prefix "link." Also, the prefix "physical" may be omitted when describing various channels.

[0174] 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.

[0175] 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.

[0176] 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).

[0177] (base station) Figure 6 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.

[0178] 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.

[0179] The control unit 110 controls the entire base station 10. The control unit 110 can be composed of a controller, control circuit, etc., as described based on common understanding in the art relating to this disclosure.

[0180] 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.

[0181] 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.

[0182] 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.

[0183] 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.

[0184] 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.

[0185] 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.

[0186] 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.

[0187] 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.

[0188] 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.

[0189] 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.

[0190] 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.

[0191] 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.

[0192] 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.

[0193] 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.

[0194] The base station 10 may support full-duplex communication. The transceiver 120 may receive information regarding the measurement of interference caused by signals transmitted from other base stations. The control unit 110 may control the measurement of interference caused by the signals based on the information (first embodiment).

[0195] (User terminal) Figure 7 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.

[0196] 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.

[0197] 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.

[0198] 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.

[0199] 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.

[0200] 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.

[0201] 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.

[0202] 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.

[0203] 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.

[0204] 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.

[0205] 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.

[0206] 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.

[0207] 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.

[0208] 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.

[0209] 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.

[0210] 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.

[0211] 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.

[0212] The user terminal 20 may support full-duplex communication. The transmitting / receiving unit 220 may receive information regarding the measurement of interference caused by signals transmitted from other terminals. The control unit 210 may control the measurement of interference caused by the signals based on the information (second embodiment).

[0213] The signal may be a reference signal transmitted from the other terminal. The information may be resource configuration information for the reference signal (second embodiment).

[0214] The aforementioned configuration information may be set in response to a request from the terminal (second embodiment).

[0215] The information may be at least one of the location information of the other terminal and information relating to at least one of the transmission power, transmission method and transmission resources of the signal (second embodiment).

[0216] (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.

[0217] 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.

[0218] 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 8 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.

[0219] 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 to omit some of the devices.

[0220] 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.

[0221] 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.

[0222] 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.

[0223] 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.

[0224] 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.

[0225] 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.

[0226] 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).

[0227] 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).

[0228] 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.

[0229] 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.

[0230] (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.

[0231] 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.

[0232] Here, the neurology may be communication parameters applied to at least one of the transmission and reception of a signal or channel. The neurology 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.

[0233] 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.

[0234] 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.

[0235] 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.

[0236] 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.

[0237] 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.

[0238] 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.

[0239] 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.

[0240] 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.

[0241] 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.

[0242] 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.

[0243] 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.

[0244] One or more RBs may also be called Physical RBs (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0245] 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.

[0246] 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.

[0247] 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.

[0248] 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".

[0249] 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.

[0250] 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.

[0251] 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.

[0252] 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.

[0253] 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.

[0254] 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.

[0255] 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).

[0256] 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).

[0257] 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 notifying the specified information or by notifying other information).

[0258] 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).

[0259] 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.

[0260] 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.

[0261] 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).

[0262] 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.

[0263] 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.

[0264] A base station can house one or more (e.g., three) cells. If a base station houses multiple cells, the entire coverage area of ​​the base station can be divided into several smaller areas, each of which may also be provided with communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). The terms “cell” or “sector” refer to part or all of the coverage area of ​​at least one of the base station and / or base station subsystems that provide communication services in that coverage.

[0265] In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0266] 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.

[0267] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a wireless communication device, etc. 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.

[0268] 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.

[0269] 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.

[0270] Figure 9 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.

[0271] 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.

[0272] 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).

[0273] 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.

[0274] 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.

[0275] 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.).

[0276] The driving assistance system unit 64 is composed of various devices for providing functions to prevent accidents or reduce the driving load of the driver, such as a millimeter-wave radar, Light Detection and Ranging (LiDAR), a camera, a positioning locator (e.g., Global Navigation Satellite System (GNSS), etc.), map information (e.g., High Definition (HD) map, Autonomous Vehicle (AV) map, etc.), a gyro system (e.g., Inertial Measurement Unit (IMU), Inertial Navigation System (INS), etc.), an Artificial Intelligence (AI) chip, an AI processor, etc., and one or more ECUs for controlling these devices. Also, the driving assistance system unit 64 transmits and receives various information via the communication module 60 to realize a driving assistance function or an autonomous driving function.

[0277] The communication module 60 can communicate with the microprocessor 61 and the components of the vehicle 40 via the communication port 63. For example, the communication module 60 transmits and receives data (information) with the drive unit 41, the steering unit 42, the accelerator pedal 43, the brake pedal 44, the shift lever 45, the left and right front wheels 46, the left and right rear wheels 47, the axle 48, the microprocessor 61 and the memory (ROM, RAM) 62 in the electronic control unit 49, and various sensors 50 - 58 provided in the vehicle 40 via the communication port 63.

[0278] The communication module 60 is a communication device that can be controlled by the microprocessor 61 of the electronic control unit 49 and can communicate with an external device. For example, it transmits and receives various information via wireless communication with the external device. The communication module 60 may be located either inside or outside the electronic control unit 49. The external device may be, for example, the above-described base station 10, user terminal 20, etc. Further, the communication module 60 may be, for example, the above-described base station 10, user terminal 20, etc. (it may function as the base station 10, user terminal 20, etc.).

[0279] The communication module 60 may transmit at least one of the signals from the various sensors 50 - 58 described above input to the electronic control unit 49, the information obtained based on the signals, and the information based on the input from the external (user) obtained via the information service unit 59, to the external device via wireless communication. The electronic control unit 49, the various sensors 50 - 58, the information service unit 59, etc. may be referred to as an input unit that receives an input. For example, the PUSCH transmitted by the communication module 60 may include the information based on the above input.

[0280] The communication module 60 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from the external device and displays it on the information service unit 59 provided in the vehicle. The information service unit 59 may be referred to as an output unit that outputs information (for example, outputs information to devices such as a display and a speaker based on the PDSCH received by the communication module 60 (or the data / information decoded from the PDSCH)).

[0281] Further, the communication module 60 stores the various information received from the external device in the 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. provided in the vehicle 40.

[0282] 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.

[0283] 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.

[0284] 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.

[0285] 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.

[0286] 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).

[0287] In this disclosure, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0288] Any reference to elements using the designations “first,” “second,” etc., as 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. Accordingly, the references to the first and second elements do not imply that only two elements may be employed or that the first element must precede the second element in any way.

[0289] The term “determining” as used in this disclosure may encompass a wide variety of actions. For example, “determining” may be considered to include judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry (e.g., searching in tables, databases, or other data structures), ascertaining, etc.

[0290] Furthermore, "judgment (decision)" may be considered as "judging (deciding)" things like receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory).

[0291] 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.

[0292] Furthermore, "judgment (decision)" can be replaced with "assuming," "expecting," or "considering."

[0293] The term "maximum transmit power" as used in this disclosure may mean the maximum transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0294] 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.”

[0295] 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).

[0296] 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."

[0297] 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.

[0298] 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.

[0299] 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 terminal that supports full-duplex communication, A receiving unit that receives information regarding the measurement of interference caused by signals transmitted from other terminals, The system includes a control unit that controls the measurement of interference by a reference signal transmitted from the other terminal based on the aforementioned information, The full-duplex communication is a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) of a Time Division Duplex (TDD) band, The reference signal is transmitted in the duplexing method using at least one of the time resources at which the UL resource is set in the same time resource as the DL resource, and the time resource at which the DL resource is set in the same time resource as the UL resource. The information is configuration information for the reference signal resources, including at least one of the time resources, in the terminal.

2. The terminal according to claim 1, wherein the aforementioned setting information is set in response to a request from the terminal.

3. A wireless communication method for a terminal that supports full-duplex communication, The steps include receiving information regarding the measurement of interference caused by signals transmitted from other terminals, The step of controlling the measurement of interference by a reference signal transmitted from the other terminal based on the aforementioned information, The full-duplex communication is a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) of a Time Division Duplex (TDD) band, The reference signal is transmitted in the duplexing method using at least one of the time resources at which the UL resource is set in the same time resource as the DL resource, and the time resource at which the DL resource is set in the same time resource as the UL resource. A wireless communication method for a terminal, wherein the information is configuration information for the reference signal resources, including at least one of the time resources.

4. A base station that supports full-duplex communication, A receiving unit that receives information regarding the measurement of interference caused by signals transmitted from other base stations, The system includes a control unit that controls the measurement of interference by a reference signal transmitted from another base station based on the aforementioned information, The full-duplex communication is a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) of a Time Division Duplex (TDD) band, The reference signal is transmitted in the duplexing method using at least one of the time resources at which the UL resource is set in the same time resource as the DL resource, and the time resource at which the DL resource is set in the same time resource as the UL resource. The information is resource configuration information for the reference signal, which includes at least one of the time resources, at the base station.

5. A system having a terminal and a base station, and supporting full-duplex communication, The aforementioned terminal is A receiving unit that receives information regarding the measurement of interference caused by signals transmitted from other terminals, The system includes a control unit that controls the measurement of interference by a reference signal transmitted from the other terminal based on the aforementioned information, The full-duplex communication is a duplexing method that frequency-division multiplexes DL and UL within one component carrier (CC) of a Time Division Duplex (TDD) band, The reference signal is transmitted in the duplexing method using at least one of the time resources at which the UL resource is set in the same time resource as the DL resource, and the time resource at which the DL resource is set in the same time resource as the UL resource. The information is resource setting information for the reference signal, which includes at least one of the time resources. The base station is a system having a transmitting unit that transmits the information.

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