Terminal, base station, wireless communication system, and wireless communication method

Abstract

A terminal comprises: a control unit that, in a symbol or slot to which is applied a duplex redundant scheme capable of executing simultaneous communication of uplink and downlink signals within a time division duplex band, executes measurement relating to reception quality in a physical layer; and a transmission unit that transmits a report of the reception quality in the physical layer. The control unit executes control relating to the report of the reception quality on the basis of whether a resource of measurement relating to the reception quality is a non-contiguous frequency resource.

Description

Terminal, base station, wireless communication system, and wireless communication method

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

[0002] The 3rd Generation Partnership Project (3GPP) has standardized the 5th generation mobile communication system (also known as 5G, New Radio (NR), or Next Generation (NG)), and is also working on standardizing the next generation, known as Beyond 5G, 5G Evolution, or 6G.

[0003] For example, 3GPP Release 18 considers extensions to duplexing schemes. Specifically, it proposes SBFD (Sub-Band non-overlapping Full Duplex), a new duplexing scheme that enables simultaneous use of downlink (DL) and uplink (UL) within a time-division duplex (TDD) band carrier. SBFD may also be interpreted as XDD (Cross Division Duplex) (see, for example, Non-Patent Document 1).

[0004] For such duplexing extensions, interference countermeasures, such as cross-link interference (CLI), are crucial. Measurement and reporting of CLI by user equipment (UE) are specified in 3GPP Release 16, among others.

[0005] "New WID: Evolution of NR duplex operation: Sub-band full duplex (SBFD)", RP-234035, 3GPP TSG RAN#102, 3GPP, December 2023

[0006] Incidentally, CLI reporting, introduced in 3GPP Release 16, is expected to apply an L3 filter to the measurement results (SRS-RSRP (Sounding Reference Signal-Reference Signal Received Power) or CLI-RSSI (Received Signal Strength Indicator)).

[0007] However, in SBFD symbol / slot, the CLI level can change dynamically, so measurement results with an L3 filter applied may not be able to keep up with the dynamically changing CLI level.

[0008] Against this backdrop, the inventors, after diligent consideration, focused on the fact that the measurement results in L1 are expected to be used as measurement results for CLI, and found it necessary to clarify the details of the measurement results in L1.

[0009] Therefore, this disclosure has been made to solve the aforementioned problems and aims to provide a terminal, base station, wireless communication system, and wireless communication method that can appropriately perform measurements and reports related to CLI when SBFD is assumed.

[0010] The disclosed aspect is a terminal comprising: a control unit that performs measurements of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; and a transmission unit that transmits a report of the received quality at the physical layer, wherein the control unit performs control over the reporting of the received quality based on whether the resource for the measurement of the received quality is a discontinuous frequency resource.

[0011] The aspect of the disclosure is a base station comprising: a receiving unit that receives a report of reception quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; and a control unit that sets parameters to be used for at least one of measuring and reporting the reception quality at the physical layer, wherein the control unit assumes that the terminal performs control regarding the reporting of the reception quality based on whether the resources for measuring the reception quality are discontinuous frequency resources.

[0012] The disclosed aspect is a wireless communication system comprising a terminal and a base station, wherein the terminal comprises a control unit that performs measurements of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied, and a transmission unit that transmits a report of the received quality at the physical layer, wherein the control unit performs control over the reporting of the received quality based on whether the resource for the measurement of the received quality is a discontinuous frequency resource.

[0013] The disclosed aspect is a wireless communication method comprising: performing a measurement of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; transmitting a report of the received quality at the physical layer; and performing control over the report of the received quality based on whether the resource for the measurement of the received quality is a discontinuous frequency resource.

[0014] Figure 1 is an overall schematic diagram of the wireless communication system 10. Figure 2 is a diagram showing the frequency range used in the wireless communication system 10. Figure 3 is a diagram showing an example of the configuration of wireless frames, subframes, and slots used in the wireless communication system 10. Figure 4 is a functional block diagram of the UE200. Figure 5 is a functional block diagram of the gNB100. Figure 6 is a diagram for explaining SBFD. Figure 7 is a diagram showing an example of the hardware configuration of the gNB100 and UE200. Figure 8 is a diagram showing an example of the configuration of vehicle 2001.

[0015] The embodiments will be described below with reference to the drawings. Note that identical or similar reference numerals are used to denote the same functions and components, and their descriptions will be omitted as appropriate.

[0016] (1) Overall schematic diagram 1 of the wireless communication system is an overall schematic diagram of the wireless communication system 10 according to the embodiment. The wireless communication system 10 is a wireless communication system in accordance with 5G New Radio (NR) and includes a Next Generation-Radio Access Network 20 (hereinafter referred to as NG-RAN20) and a terminal 200 (hereinafter referred to as UE (User Equipment) 200).

[0017] The wireless communication system 10 may also be a wireless communication system that conforms to a method called Beyond 5G, 5G Evolution, or 6G.

[0018] NG-RAN20 includes base station 100 (hereinafter referred to as gNB100). The specific configuration of the wireless communication system 10, including the number of gNB100 and UE200, is not limited to the example shown in Figure 1.

[0019] NG-RAN20 actually includes multiple NG-RAN Nodes, specifically gNBs (or ng-eNBs), and is connected to a 5G-compliant core network (5GC, not shown). Note that NG-RAN20 and 5GC may also be simply referred to as the "network".

[0020] The gNB100 is a 5G-compliant radio base station that performs 5G-compliant wireless communication with the UE200. The gNB100 and UE200 can support Massive MIMO (Multiple-Input Multiple-Output), which generates a more directional beamband by controlling radio signals transmitted from multiple antenna elements; carrier aggregation (CA), which uses multiple component carriers (CCs) bundled together; and dual connectivity (DC), which enables simultaneous communication with two or more transport blocks between the UE and each of the two NG-RAN Nodes.

[0021] Furthermore, the wireless communication system 10 supports multiple frequency ranges (FR). Figure 2 shows the frequency ranges used in the wireless communication system 10.

[0022] Firstly, the wireless communication system 10 may support multiple frequency ranges (FRs) as shown in Figure 2. For example, the wireless communication system 10 may support FR1, FR2-1, and FR2-2. The frequency bands for each FR are as follows:

[0023] FR1: 410 MHz to 7.125 GHz FR2-1: 24.25 GHz to 52.6 GHz FR2-2: Over 52.6 GHz to 71 GHz In FR1, 15, 30, or 60 kHz Sub-Carrier Spacing (SCS) may be used, and a bandwidth (BW) of 5 to 100 MHz may be used. FR2 is a higher frequency than FR1, and 60 kHz or 120 kHz (240 kHz may be included) SCS may be used, and a bandwidth (BW) of 50 to 400 MHz may be used.

[0024] Note that SCS may also be interpreted as numerology. Numerology is defined in 3GPP TS38.300 and corresponds to a single subcarrier interval in the frequency domain.

[0025] Furthermore, the wireless communication system 10 may also support higher frequency bands than the FR2 frequency band. Specifically, the wireless communication system 10 may support frequency bands exceeding 52.6 GHz up to 71 GHz or 114.25 GHz.

[0026] Secondly, the wireless communication system 10 may correspond to the wireless frames, subframes, and slots shown in Figure 3.

[0027] As shown in Figure 3, one slot consists of 14 symbols, and the larger (wider) the SCS, the shorter the symbol duration (and slot duration). In addition to 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz, 480kHz, 960kHz, etc., may also be used for the SCS.

[0028] Furthermore, the number of symbols constituting one slot does not necessarily have to be 14 (for example, 28 symbols, 56 symbols). In addition, the number of slots per subframe may differ depending on the SCS.

[0029] The time direction (t) shown in Figure 3 may also be called the time domain, symbol period, or symbol time. The frequency direction may also be called the frequency domain, resource block, subcarrier, or bandwidth part (BWP).

[0030] (2) Functional Block Configuration of the Wireless Communication System Next, the functional block configuration of the wireless communication system 10 will be described.

[0031] First, we will describe the functional block configuration of the UE200.

[0032] Figure 4 is a functional block diagram of the UE200. As shown in Figure 4, the UE200 comprises a wireless signal transmission / reception unit 210, an amplifier unit 220, a modulation / demodulation unit 230, a control signal / reference signal processing unit 240, an encoding / decoding unit 250, a data transmission / reception unit 260, and a control unit 270.

[0033] The wireless signal transceiver 210 transmits and receives wireless signals according to NR. The wireless signal transceiver 210 supports Massive MIMO, CA that bundles and uses multiple CCs, and DC that enables simultaneous communication between the UE and each of two NG-RAN Nodes.

[0034] In an embodiment, the wireless signal transceiver 210 may communicate with a multi-duplexing scheme cell capable of simultaneously communicating uplink signals (hereinafter, UL signals) and downlink signals (hereinafter, DL signals) within a time division multiplexing band. A new multi-duplexing scheme capable of simultaneously communicating UL signals and DL signals may be referred to as SBFD (Sub-Band non-overlapping Full Duplex). SBFD may be read as XDD (Cross Division Duplex).

[0035] Simultaneous communication of UL signals and DL signals may be performed in specific time resources. The specific time resources are time resources to which SBFD can be applied. The specific time resources may be read as SBFD resources (SBFD symbol / slot) set quasi-statically or dynamically in the time direction (or, time domain). The specific time resources may be read as resources in which UL Sub-band(s) and DL Sub-band(s) are simultaneously set quasi-statically or dynamically in the time direction (or, time domain).

[0036] The multi-duplexing scheme cell may be referred to as an SBFD operation cell or an SBFD cell. An additional cell may be referred to as an Additional PCI (Physical Cell Identifier) Cell. The Additional PCI Cell may include a cell operating in SBFD (SBFD operation cell) or a cell not operating in SBFD (Non-SBFD operation cell or Non-SBFD cell).

[0037] The amplifier unit 220 is composed of a PA (Power Amplifier) / LNA (Low Noise Amplifier), etc. The amplifier unit 220 amplifies the signal output from the demodulation and modulation unit 230 to a predetermined power level. Also, the amplifier unit 220 amplifies the RF signal output from the wireless signal transceiver unit 210.

[0038] The demodulation and modulation unit 230 performs data modulation / demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (gNB100 or other gNBs). In the demodulation and modulation unit 230, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform - Spread (DFT-S-OFDM) may be applied. Also, DFT-S-OFDM may be used not only for the uplink (UL) but also for the downlink (DL).

[0039] The control signal / reference signal processing unit 240 performs processing related to various control signals transmitted and received by the UE200, and processing related to various reference signals transmitted and received by the UE200.

[0040] Specifically, the control signal / reference signal processing unit 240 receives various control signals transmitted from the gNB100 via a predetermined control channel, for example, control signals of the radio resource control layer (RRC). Also, the control signal / reference signal processing unit 240 transmits various control signals to the gNB100 via a predetermined control channel.

[0041] The control signal / reference signal processing unit 240 performs processing using reference signals (RS) such as Demodulation Reference Signal (DMRS) and Phase Tracking Reference Signal (PTRS).

[0042] DMRS is a terminal-specific reference signal (pilot signal) known between the base station and the terminal for estimating the fading channel used for data demodulation. PTRS is a terminal-specific reference signal for the purpose of estimating phase noise, which is a problem in high frequency bands.

[0043] In addition to DMRS and PTRS, the reference signals may also include Channel State Information-Reference Signal (CSI-RS), Sounding Reference Signal (SRS), and Positioning Reference Signal (PRS) for location information.

[0044] Furthermore, channels include control channels and data channels. Control channels include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel), Downlink Control Information (DCI) including Random Access Radio Network Temporary Identifier (RA-RNTI), and Physical Broadcast Channel (PBCH), among others.

[0045] Furthermore, data channels include PDSCH (Physical Downlink Shared Channel) and PUSCH (Physical Uplink Shared Channel), among others. "Data" refers to data transmitted through a data channel. A data channel may also be interpreted as a shared channel.

[0046] Here, the control signal / reference signal processing unit 240 may receive downlink control information (DCI). The DCI includes fields that store existing fields such as DCI Formats, Carrier indicator (CI), BWP indicator, FDRA (Frequency Domain Resource Assignment), TDRA (Time Domain Resource Assignment), MCS (Modulation and Coding Scheme), HPN (HARQ Process Number), NDI (New Data Indicator), and RV (Redundancy Version).

[0047] The value stored in the DCI Format field is an information element that specifies the DCI format. The value stored in the CI field is an information element that specifies the CC to which the DCI applies. The value stored in the BWP indicator field is an information element that specifies the BWP to which the DCI applies. The BWP that can be specified by the BWP indicator is set by an information element (BandwidthPart-Config) included in the RRC message. The value stored in the FDRA field is an information element that specifies the frequency domain resource to which the DCI applies. The frequency domain resource is identified by the value stored in the FDRA field and an information element (RA Type) included in the RRC message. The value stored in the TDRA field is an information element that specifies the time domain resource to which the DCI applies. The time domain resource is identified by the value stored in the TDRA field and an information element (pdsch-TimeDomainAllocationList, push-TimeDomainAllocationList) included in the RRC message. The time domain resource may also be identified by the value stored in the TDRA field and the default table. The value stored in the MCS field is an information element that specifies the MCS to which the DCI applies. The MCS is identified by the value stored in MCS and the MCS table. The MCS table may be specified by the RRC message or identified by RNTI scrambling. The value stored in the HPN field is an information element that specifies the HARQ Process to which DCI is applied. The value stored in NDI is an information element that determines whether the data to which DCI is applied is initial transmission data. The value stored in the RV field is an information element that specifies the redundancy of the data to which DCI is applied.

[0048] The encoding / decoding unit 250 performs data splitting / concatenation and channel coding / decoding for each predetermined communication destination (gNB100 or other gNB).

[0049] Specifically, the encoding / decoding unit 250 divides the data output from the data transmission / reception unit 260 into predetermined sizes and performs channel coding on the divided data. The encoding / decoding unit 250 also decodes the data output from the modulation / demodulation unit 230 and concatenates the decoded data.

[0050] The data transmission / reception unit 260 performs the transmission and reception of Protocol Data Units (PDUs) and Service Data Units (SDUs). Specifically, the data transmission / reception unit 260 performs assembly / decomposition of PDUs / SDUs at multiple layers (such as the Media Access Control Layer (MAC), Radio Link Control Layer (RLC), and Packet Data Convergence Protocol Layer (PDCP)). In addition, the data transmission / reception unit 260 performs error correction and retransmission control of data based on HARQ (Hybrid Automatic Repeat Request).

[0051] The control unit 270 controls each functional block that constitutes the UE200. In an embodiment, the control unit 270 may be configured to perform measurements related to the received quality at the physical layer in a symbol or slot (SBFD symbol or SBFD slot) to which a duplexing scheme (SBFD) capable of simultaneous communication of UL signals and DL signals within the time-division duplex band is applied. Measurements related to the received quality at the physical layer may be referred to as L1 measurement. The received quality at the physical layer may include L1-SRS-RSRP (Reference Signal Received Power) or L1-CLI-RSSI (Received Signal Strength Indicator).

[0052] Here, the wireless signal transceiver 210 may constitute a transmitter that transmits a report on the reception quality at the physical layer. The wireless signal transceiver 210 may constitute a receiver that receives parameters used for at least one of the measurement and reporting of reception quality at the physical layer. The report on reception quality at the physical layer may be referred to as L1 reporting. The parameters may be interpreted as parameters for crosslink interference.

[0053] Secondly, the functional block configuration of the gNB100 will be described.

[0054] Figure 5 is a functional block diagram of the gNB100. As shown in Figure 5, the gNB100 has a receiving unit 110, a transmitting unit 120, and a control unit 130.

[0055] The receiver 110 receives various signals from the UE200. The receiver 110 may also receive the UL signal via PUCCH or PUSCH.

[0056] The transmitter 120 transmits various signals to the UE200. The transmitter 120 may also transmit DL signals via PDCCH or PDSCH.

[0057] In this embodiment, the receiving unit 110 and the transmitting unit 120 may communicate with the UE200 via a duplexing cell (SBFD operation cell) capable of simultaneous communication of UL signals and DL signals within the TDD band.

[0058] In this embodiment, the receiving unit 110 may be configured to receive a report of the reception quality at the physical layer in a symbol or slot (SBFD symbol or SBFD slot) to which a duplexing scheme (SBFD) capable of simultaneous communication of UL signals and DL signals within the time-division duplexing band is applied.

[0059] The control unit 130 controls the gNB100. In this embodiment, the control unit 130 may be configured to set parameters in the UE200 that are used for measuring and reporting reception quality at the physical layer.

[0060] (3) The first task will be explained in terms of resource allocation for gNB100.

[0061] In 3GPP Release 15 / 16 / 17, as shown in the upper part of Figure 6, the gNB100 sets or specifies "DL," "F (Flexible)," or "UL" for each symbol. Simultaneous communication of DL and UL signals is not permitted within a given time resource.

[0062] On the other hand, in 3GPP Release 18, as shown in the lower part of Figure 6, the gNB100 sets or designates "DL" as the symbol for one frequency resource (e.g., Sub-band(s)) and "UL" as the symbol for another frequency resource (e.g., Sub-band(s)). Simultaneous communication of DL and UL signals is permitted within a given time resource. Such a scheme may be called SBFD (Sub-Band non-overlapping Full Duplex).

[0063] Secondly, I will explain the challenges related to SBFD.

[0064] CLI reporting, introduced in 3GPP Release 16, is expected to apply an L3 filter to the measurement results (SRS-RSRP or CLI-RSSI).

[0065] However, in SBFD symbol / slot, the CLI level can change dynamically, so measurement results with an L3 filter applied may not be able to keep up with the dynamically changing CLI level.

[0066] Against this backdrop, the inventors, after diligent consideration, focused on the fact that the measurement results at L1 are expected to be used as measurement results for CLI, and found it necessary to clarify the details of the measurement results at L1 (i.e., the report of reception quality at L1).

[0067] (4) Definitions of Terms The following sections will explain the definitions of terms related to SBFD.

[0068] An SBFD operation cell is a serving cell in which the time or frequency position of the SBFD sub-band is set.

[0069] A non-SBFD operation cell is a serving cell in which an SBFD subband is not configured.

[0070] A semi-static DL slot / symbol is a slot / symbol configured as DL by a higher-level parameter (tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated).

[0071] A semi-static UL slot / symbol is a slot / symbol that is configured as a UL by a higher-level parameter (tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated).

[0072] A semi-static flexible slot / symbol is a slot / symbol that is set as Flexible by a higher-level parameter (tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated).

[0073] A Dynamic DL slot / symbol is a slot / symbol that is set as Flexible by a higher-level parameter (tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated) and is specified as DL by DCI Format 2_0.

[0074] A Dynamic UL slot / symbol is a slot / symbol that is set as Flexible by a higher-level parameter (tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated) and specified as UL by DCI Format 2_0.

[0075] A Dynamic Flexible slot / symbol is a slot / symbol that is set as Flexible by a higher-level parameter (tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated) and is specified as Flexible by DCI Format 2_0.

[0076] (5) Example of Operation In order to solve the above-mentioned problems, the following example of operation may be specified. Specifically, the UE200 performs an L1 measurement in an SBFD symbol or SBFD slot. In such a case, the UE200 receives CLI parameters to be used as parameters for at least one of the L1 measurement and L1 reporting. CLI parameters are new parameters defined separately from the CLI parameters introduced in 3GPP Release 16. CLI parameters may also be called SBFD L1 CLI parameters.

[0077] Here, the reception quality at the physical layer may include L1-SRS-RSRP or L1-CLI-RSSI.

[0078] L1-SRS-RSRP may be a linear average of the power (e.g., [dBm] or [W]) of the resource element carrying the SRS. The measurement time resource for the linear average may be set by the upper layer (RRC message).

[0079] The L1-CLI-RSSI may be a linear average of the observed total received power (e.g., [dBm] or [W]). The measurement time resource for the linear average may be set by a higher layer (RRC message).

[0080] The definitions of L1-SRS-RSRP and L1-CLI-RSSI may be newly introduced. The definitions of L1-SRS-RSRP and L1-CLI-RSSI may be the same as the existing SRS-RSRP / CLI-RSSI definitions, or they may be updated definitions of the existing SRS-RSRP / CLI-RSSI definitions. The existing SRS-RSRP / CLI-RSSI may be those defined in TR38.215 §5.1.19 / §5.1.20.

[0081] (5.1) Operation Example 1 In Operation Example 1, the CLI parameters may be included in an existing information element that sets the resources used to measure the received quality at the physical layer, or they may be included in a new information element for the CLI. The CLI parameters are parameters that set the resources (L1 CLI measurement resource) for measuring at least one of L1-SRS-RSRP and L1-CLI-RSSI. The existing information element may be a "CSI-IM (Interference Measurement)-resource IE (Information Element)" or a "SRS-Config IE". The following options are possible for Operation Example 1.

[0082] In Option 1-1, the CLI parameters may include the configuration of the L1 CLI measurement resource for L1-SRS-RSRP. The following options are possible for Option 1-1.

[0083] In option 1-1-1, the configuration of the L1 CLI measurement resource for L1-SRS-RSRP may include the SRS-Resource configured in SRS-Config IE.

[0084] In option 1-1-2, the L1 CLI measurement resource configuration for L1-SRS-RSRP may include the measurement SRS resource configured in CSI-IM-resource IE.

[0085] In option 1-1-3, the configuration of the L1 CLI measurement resource for L1-SRS-RSRP may include a new information element. This new information element may be interpreted as a new field. The new information element is an information element that indicates the SRS resource for measurement.

[0086] In option 1-1-4, the configuration of the L1 CLI measurement resource for L1-SRS-RSRP may include a CSI-IM-resource IE linked or mapped to the SRS-RSRP-ID. For example, multiple SRS-RSRP resources may be configured by the SRS-Config IE in association with the SRS-RSRP-ID. The CSI-IM-resource of the CSI-ReportConfig may be linked or mapped to the SRS-RSRP-ID.

[0087] In option 1-1-5, the L1 CLI measurement resource configuration for L1-SRS-RSRP may include the SCS for SRS.

[0088] Two or more options selected from options 1-1-1 to 1-1-5 may be combined.

[0089] In Option 1-2, the CLI parameters may include the setting of one CLI measurement resource for L1-CLI-RSSI. The following options are possible for Option 1-2.

[0090] In option 1-2-1, the L1 CLI measurement resource setting for L1-CLI-RSSI may include the RSSI-ResourceID set in MeasObjectCLI IE.

[0091] In option 1-2-2, the L1 CLI measurement resource configuration for L1-CLI-RSSI may include the measurement RSSI resource configured in CSI-IM-resource IE.

[0092] In option 1-2-3, the configuration of the L1 CLI measurement resource for L1-CLI-RSSI may include a new information element. This new information element may be interpreted as a new field. The new information element is an information element that indicates the RSSI resource for measurement.

[0093] In option 1-2-4, the configuration of the L1 CLI measurement resource for L1-CLI-RSSI may include a CSI-IM-resource IE linked or mapped to a CLI-RSSI-ID. For example, multiple CLI-RSSI resources may be configured by a CLI-RSSI-Config IE in association with a CLI-RSSI-ID. The CSI-IM-resource in CSI-ReportConfig may be linked or mapped to a CLI-RSSI-ID.

[0094] In option 1-2-5, the configuration of the L1 CLI measurement resource for L1-CLI-RSSI may include an SCS for the measurement resource.

[0095] In option 1-2-6, the L1 CLI measurement resource configuration for L1-CLI-RSSI may include the starting PRB and number of PRBs for the measurement resource. The starting PRB and number of PRBs are set for the UL sub-band of the SBFD symbol / slot. Therefore, the starting PRB #0 may indicate the lowest PRB of the UL sub-band.

[0096] In option 1-2-7, the configuration of the L1 CLI measurement resource for L1-CLI-RSSI may include the starting symbol and number of symbols for the measurement resource.

[0097] In option 1-2-8, the period and offset of the L1 CLI measurement resource may be set by RSSI-PeriodicityAndOffset-r16 included in MeasObjectCLI IE, a new field included in MeasObjectCLI IE, CSI-IM-resource IE, or a new information element.

[0098] In option 1-2-9, the settings described in each of the above options may also be set by RSSI-PeriodicityAndOffset-r16 included in MeasObjectCLI IE, a new field included in MeasObjectCLI IE, CSI-IM-resource IE, or a new information element.

[0099] In Operation Example 1, a new field may be defined to indicate whether the settings described in each of the above options are for measuring L1-SRS-RSRP or L1-CLI-RSSI.

[0100] In Operation Example 1, multiple settings may be associated with an ID as described in each of the options above. At least one of the multiple IDs may be set by a field included in CSI-ReportConfig IE. The field may be csi-IM-ResourcesForInterference, nzp-CSI-RS-ResourcesForInterference, or a new field (for example, CLI-ResourcesForInterference).

[0101] (5.2) Operation Example 2 In Operation Example 2, the CLI parameters may be included in existing information elements used for reporting the reception quality at the physical layer, or they may be included in new information elements for the CLI. The CLI parameters are parameters used for reporting at least one of L1-SRS-RSRP and L1-CLI-RSSI. The existing information elements may be CSI-ReportConfig IE. The following options are possible for Operation Example 2.

[0102] In Option 2-1, new candidate values ​​such as L1-SRS-RSRP and L1-CLI-RSSI may be introduced for reportQuantity in CSI-ReportConfig IE.

[0103] In Option 2-2, the report configurations for L1-SRS-RSRP and L1-CLI-RSSI may be additionally configured or specified, or newly configured or specified. The report configurations for L1-SRS-RSRP and L1-CLI-RSSI may be included in the CSI-ReportConfig IE.

[0104] In option 2-3, one report may include an index for L1-SRS-RSRP measurement if necessary. Another report may include an index for L1-CLI-RSSI measurement if necessary.

[0105] In Option 2-4, a single report may include multiple L1-SRS-RSRP / L1-CLI-RSSI for each index for the Measurement resource. A maximum number of Measurement resources (e.g., 4) may be defined. The number of Measurement resources (e.g., 1, 2, 3, 4) may be set or defined.

[0106] In option 2-5, an index for the Measurement resource may be reported.

[0107] In option 2-6, spatial information of the UE may be reported. For example, an Rx beam (TCI state / QCL-D RS) may be set for each of the L1-SRS-RSRP / L1-CLI-RSSI Measurement resources. With such a configuration, the index for the reported Measurement resource will reflect the Rx beam information. Alternatively, the report may include spatial information of the UE as additional information.

[0108] (5.3) Operation Example 3 Operation Example 3 describes the details of L1-SRS-RSRP / L1-CLI-RSSI. Operation Example 3 may be an example that presupposes Operation Example 1 or Operation Example 2. The following options are possible for Operation Example 3.

[0109] In Option 3-1, one report may include an index for the Measurement resource. One report may include the measured value and an index for the Measurement resource.

[0110] In Option 3-2, a single report may include multiple L1-SRS-RSRP / L1-CLI-RSSI for each index for a Measurement resource. The order of the multiple L1-SRS-RSRP / L1-CLI-RSSI may be ascending order of Measurement resources or descending order of Measurement resources. The order of the multiple L1-SRS-RSRP / L1-CLI-RSSI may be ascending order of L1-SRS-RSRP / L1-CLI-RSSI results or descending order of L1-SRS-RSRP / L1-CLI-RSSI results. In the report, the first value may be an absolute value, and subsequent values ​​may be relative values. Relative values ​​may be relative to the first value or relative to the value in the previous order.

[0111] Option 3-3 may introduce distinguished L1-SRS-RSRP / L1-CLI-RSSI when multiple L1-SRS-RSRP / L1-CLI-RSSIs are reported. Distinguished L1-SRS-RSRP / L1-CLI-RSSI may mean distinguished from existing SRS-RSRP / CLI-RSSIs, or it may mean distinguished from existing L1-RSRP / L1-SINRs.

[0112] In option 3-4, the bit size, value range, and step size of L1-SRS-RSRP / L1-CLI-RSSI may be predefined in the wireless communication system 10. The bit size, value range, and step size of L1-SRS-RSRP / L1-CLI-RSSI may also be set by the upper layer (RRC message). The following options are possible for option 3-4.

[0113] In option 3-4-1, the value range of L1-SRS-RSRP may be [-140, -44] dBM.

[0114] In option 3-4-2, UE200, which is close to gNB100, may be considered. That is, the Value range for L1-SRS-RSRP may be defined as -13 / -14 / -15 / -20 / -25 / -30 dBm, which can be represented by a 7-bit bit size with a 1 dB step size.

[0115] In option 3-4-3, the L1-CLI-RSSI value range may be [-100, -25] dBM.

[0116] In option 3-4-4, UE200, which is close to gNB100, may be considered. That is, the Value range for L1-CLI-RSSI may be defined as +25 / +20 / +15 / +10 / +5 / 0 / -5 / -10 / -15 / -20 dBm, which can be represented by a 7-bit bit size with a 1 dB step size.

[0117] In option 3-4-5, the step size of L1-SRS-RSRP / L1-CLI-RSSI may be 0.5 dB or 1.0 dB.

[0118] In option 3-4-6, the bit size of L1-SRS-RSRP / L1-CLI-RSSI may be 7 bits or 8 bits.

[0119] In option 3-4-7, the step size of the distinguished L1-SRS-RSRP / L1-CLI-RSSI may be 1 dB or 2 dB.

[0120] In option 3-4-8, the bit size of the distinguished L1-SRS-RSRP / L1-CLI-RSSI may be 4 bits or 5 bits.

[0121] (5.4) Operation Example 4 Operation Example 4 describes the priority rules for CSI reporting for L1-SRS-RSRP / L1-CLI-RSSI. The following options are possible for Operation Example 4.

[0122] In Option 4-1, the priority of L1-SRS-RSRP / L1-CLI-RSSI may be the same as that of existing L1-RSRP / L1-SINR. For example, in the following formula for determining priority in 3GPP TS38.214 §5.2.5 “Priority rules for CSI reports”, the value of k may be the same as that used for existing L1-RSRP / L1-SINR.

[0123] Pri_iCSI(y,k,c,s)=2N_cells*M_s*y+N_cells*M_s*k+M_s*c+s Here, y is a value determined for each type of CSI report. For aperiodic CSI reports transported by PUSCH, y=0; for semi-persistent CSI reports transported by PUSCH, y=1; for semi-persistent CSI reports transported by PUCCH, y=2; and for periodic CSI reports transported by PUCCH, y=3.

[0124] k is a value determined by whether or not the CSI report carries L1-RSRP / L1-SINR. k=0 for CSI reports that carry L1-RSRP / L1-SINR, and k=1 for CSI reports that do not carry L1-RSRP / L1-SINR.

[0125] c is the index of the serving cell, and N_cells is the value set by the higher-layer parameter (maxNrofServingCells).

[0126] s is the reportConfigID, and M_s is the value set by the higher-layer parameter (maxNrofCSI-ReportConfigurations).

[0127] In the formula described above, the lower the value of Pri_iCSI(y,k,c,s), the higher the priority of the CSI report corresponding to Pri_iCSI(y,k,c,s).

[0128] In Option 4-2, the value of k that defines the priority of L1-SRS-RSRP / L1-CLI-RSSI may be the same as the value of k that defines the priority of existing L1-RSRP / L1-SINR. The following formula for determining priority in §5.2.5 “Priority rules for CSI reports” of 3GPP TS38.214 may have the term “N_cells*M_s*x” added, as shown below, where x is the parameter used to determine the priority of L1-SRS-RSRP / L1-CLI-RSSI.

[0129] Pri_iCSI(y,k,c,s)=2N_cells*M_s*y+N_cells*M_s*k+ N_cells*M_s*x+M_s*c+s Here, x is a value determined by whether or not the CSI report carries L1-SRS-RSRP / L1-CLI-RSSI. For a CSI report that carries L1-SRS-RSRP / L1-CLI-RSSI, x=0, and for a CSI report that does not carry L1-SRS-RSRP / L1-CLI-RSSI, x=1.

[0130] (5.5) Operation Example 5 Operation Example 5 describes the control related to reporting of reception quality (L1-SRS-RSRP / L1-CLI-RSSI), assuming operation examples 1 to 4. The UE200 performs control related to reporting of L1-SRS-RSRP / L1-CLI-RSSI based on whether the measurement resources related to reception quality (e.g., SRS-RSRP measurement resource / CLI-RSSI measurement resource) are discontinuous frequency resources. In other words, the UE200 performs control related to reporting of L1-SRS-RSRP / L1-CLI-RSSI based on whether the SRS-RSRP measurement resource / CLI-RSSI measurement resource are discontinuous frequency resources in the two DL sub-bands. Here, the SRS-RSRP measurement resource / CLI-RSSI measurement resource may be continuous in each of the two DL sub-bands. The following options are possible for Operation Example 5.

[0131] In Option 5-1, control over L1-SRS-RSRP / L1-CLI-RSSI reporting is controlled by the number of processors (CPUs) that perform the measurement or reporting of received quality (O CPU ) may be a control that sets ). Set may be interpreted as assumption.

[0132] Specifically, the UE200 is used when the SRS-RSRP measurement resource / CLI-RSSI measurement resource is a discontinuous frequency resource in two DL sub-bands. CPU Set =2. On the other hand, UE200 is O when the SRS-RSRP measurement resource / CLI-RSSI measurement resource are consecutive frequency resources. CPU Set =1.

[0133] For example, O CPU=1 may be applied to the CSI report by LTM-CSI-ReportConfig. O CPU =1 may be applied to the CSI report in which the upper layer parameter (reportQuantity) is set to "cri-RSRP", "ssb-Index-RSRP", "cri-SINR", "ssb-Index-SINR", "cri-RSRP-Index", "ssb-Index-RSRP-Index", "cri-SINR-Index", "ssb-Index-SINR-Index". O CPU =1 may be applied to the CSI report in which the upper layer parameter (reportQuantity) is set to "cli-RSSI (CLI measurement resource corresponding to continuous frequency resources)". O CPU =1 may be applied to the CSI report in which the upper layer parameter (reportQuantity) is set to "none" (and the upper layer parameter (trs-Info) is not set for the CSI-RS-ResourceSet).

[0134] For example, O CPU =2 may be applied to the CSI report in which the upper layer parameter (reportQuantity) is set to "cli-RSSI (CLI measurement resource corresponding to discontinuous frequency resources)".

[0135] In Option 5-1, as a CLI processing unit for processing CLI, a separate CLI processing unit for CLI report may be introduced. In such a case, concurrent processing of CLI operations (N CLPU ) may be supported. The concurrent processing may be supported within a component carrier or across all component carriers. Whether to support concurrent processing may be reported as UE capability or defined in the radio communication system 10. The UE200 is, N CLPUYou do not need to anticipate that an aperiodic CSI trigger state exceeding the reporting settings will be set.

[0136] In the case described above, O CLPU This may be applied according to the options shown below.

[0137] In option 5-1-1, O CLPU =1 may also apply to L1-SRS-RSRP / L1-CLI-RSSI. For example, O CLPU =1 may also be applied to CSIreports where the upper layer parameter (reportQuantity) is set to "cli-RSSI" or "cli-SRS-RSRP".

[0138] In option 5-1-2, O CLPU =2 may be applied to L1-RSSI reports where the CLI measurement resource is a discontinuous frequency resource. On the other hand, O CLPU =1 may be applied to L1-RSSI reports where the CLI measurement resource is a continuous frequency resource. For example, O CLPU =2 may also apply to a CSI report where the upper layer parameter (reportQuantity) is set to "cli-RSSI (CLI measurement resource corresponding to discontinuous frequency resources)". On the other hand, O CLPU =1 may also apply to a CSI report where the upper layer parameter (reportQuantity) is set to "cli-RSSI (CLI measurement resource corresponding to continuous frequency resources)".

[0139] In Option 5-2, the control relating to L1-SRS-RSRP / L1-CLI-RSSI reporting may be a control that sets the processing time (Z(m), Z'(m)) of the processing unit (CPU) that performs the measurement or reporting of reception quality. Set may be interpreted as assumption. The method for calculating Z(m), Z'(m) may be the method specified in §5.4.2 of 3GPP TS38.214.

[0140] Specifically, the UE200 sets the processing time (α*Z3, α*Z'3) when the SRS-RSRP measurement resource / CLI-RSSI measurement resource are discontinuous frequency resources in the two DL sub-bands. On the other hand, the UE200 sets the processing time (Z3, Z'3) when the SRS-RSRP measurement resource / CLI-RSSI measurement resource are continuous frequency resources.

[0141] Here, α may satisfy the relationship α > 1. The value of α may be predefined in the wireless communication system 10. The value of α may be reported by UE capability.

[0142] For example, the processing time (Z3, Z'3) may be applied to a CSI report where the upper layer parameter (reportQuantity) is set to "cri-RSRP", "ssb-Index-RSRP", "cri-RSRP-Index", or "ssb-Index-RSRP-Index". The processing time (Z3, Z'3) may also be applied to a CSI report where the upper layer parameter (reportQuantity) is set to "cli-RSSI (CLI measurement resource corresponding to a continuous frequency resource)".

[0143] For example, the processing time (α*Z3, α*Z'3) may be applied to a CSI report where the upper layer parameter (reportQuantity) is set to "cli-RSSI (CLI measurement resource corresponding to discontinuous frequency resources)".

[0144] (6) Operation and Effects In the embodiment, the UE200 performs an L1 measurement in the SBFD symbol or SBFD slot. In such a case, the UE200 receives CLI parameters to be used as parameters for at least one of the L1 measurement and L1 reporting. With this configuration, the CLI parameters are clarified, so that when an L1 measurement is expected in the SBFD, the L1 measurement can be performed appropriately.

[0145] In this embodiment, the UE200 performs control over the reporting of L1-SRS-RSRP / L1-CLI-RSSI based on whether the measurement resources related to reception quality (e.g., SRS-RSRP measurement resource / CLI-RSSI measurement resource) are discontinuous frequency resources. With such a configuration, for example, the number of processors (CPUs) occupied (O CPU The parameters and processing time (Z(m), Z'(m)) can be set appropriately, allowing for proper execution of L1 measurement.

[0146] (7) Other Embodiments Although the contents of the present invention have been described above in accordance with the embodiments, it will be obvious to those skilled in the art that the present invention is not limited to these descriptions and that various modifications and improvements are possible.

[0147] Although not specifically mentioned in the disclosure above, which of Operation Examples 1 to 5 to be used (hereinafter, which mode to use) may be set by a higher-layer parameter. Which of each option or Alt. in Operation Examples 1 to 5 to be used (hereinafter, which mode to use) may be set by a higher-layer parameter. Which mode to support may be reported by UE200 as UE capability(ies). Which mode to use may be predefined in the wireless communication system 20. Which mode to use may be set by a higher-layer parameter and reported by UE200 as UE capability(ies).

[0148] Although not specifically mentioned in the disclosure above, the following UE capability(ies) may be defined. UE capability(ies) may be defined for each UE200, for each FR, or for each FC. UE capability(ies) may be included in the signals reported from the UE200 to the gNB100, or in the signals (RRC configuration) set from the NB100 to the UE200.

[0149] Although not specifically mentioned in the disclosure above, UE capability(ies) may include information indicating whether or not it supports L1 measurement.

[0150] Although not specifically mentioned in the disclosure above, UE capability(ies) may include information indicating whether or not it supports L1 reporting.

[0151] Although not specifically mentioned in the disclosure above, UE capability(ies) may include information indicating whether or not it supports the parameters used in L1 measurement (parameters for CLI).

[0152] Although not specifically mentioned in the disclosure above, UE capability(ies) may include information indicating whether or not it supports the parameters used in L1 reporting (CLI parameters).

[0153] Although not specifically mentioned in the disclosure above, UE capability(ies) may include information indicating whether or not it supports L1-SRS-RSRP / L1-CLI-RSSI bit size, value range, and step size.

[0154] Although not specifically mentioned in the disclosure above, UE capability(ies) may include information indicating whether or not it supports L1-SRS-RSRP / L1-CLI-RSSI priorities.

[0155] In the disclosures above, configure, activate, update, indicate, enable, specify, and select may be interpreted as interchangeable. Similarly, link, associate, correspond, and map may be interpreted as interchangeable, and allocate, assign, monitor, and map may also be interpreted as interchangeable.

[0156] Furthermore, "specific," "dedicated," "UE specific," and "UE individual" may be interpreted interchangeably. Similarly, "common," "shared," "group-common," "UE common," and "UE shared" may be interpreted interchangeably.

[0157] The block diagrams (Figures 4 and 5) used in the description of the embodiments above 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 be realized by combining the above one device or the above multiple devices with software.

[0158] Functions include, but are not limited to, judgment, decision, determination, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, assumption, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission is called a transmitting unit or transmitter. In any case, as mentioned above, the method of implementation is not particularly limited.

[0159] Furthermore, the gNB100 and UE200 (the device) described above may function as a computer that processes the wireless communication method of this disclosure. Figure 7 shows an example of the hardware configuration of the device. As shown in Figure 7, the device may be configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, and bus 1007.

[0160] In the following explanation, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware configuration of the device may include one or more of the devices shown in the diagram, or it may be configured to omit some of the devices.

[0161] Each functional block of the device (see Figures 4 and 5) is implemented by any hardware element of the computer device, or a combination of such hardware elements.

[0162] Furthermore, each function in the device is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, which allows the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of the reading and writing of data in the memory 1002 and storage 1003.

[0163] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may consist of a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, and so on.

[0164] 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. Moreover, the above-mentioned various processes may be executed by one processor 1001, or by two or more processors 1001 simultaneously or sequentially. The processor 1001 may be implemented by one or more chips. The program may also be transmitted from a network via a telecommunications line.

[0165] 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 Erasable Programmable ROM (EEPROM), Random Access Memory (RAM), etc. Memory 1002 may also be called a register, cache, main memory, etc. Memory 1002 can store a program (program code), software module, etc., that can execute a method according to one embodiment of this disclosure.

[0166] Storage 1003 is a computer-readable recording medium and may consist of at least one of the following: an optical disc such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., Compact Disc, Digital Multipurpose Disc, Blu-ray® Disc), a smart card, flash memory (e.g., a card, stick, key drive), a floppy® disk, a magnetic strip, etc. Storage 1003 may also be called an auxiliary storage device. The recording medium described above may also be, for example, a database, server, or other suitable medium including at least one of memory 1002 and storage 1003.

[0167] The communication device 1004 is hardware (transceiver / receiver 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.

[0168] The communication device 1004 may be configured to include, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD).

[0169] 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, LED lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0170] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or different buses may be configured for each device.

[0171] Furthermore, the device may 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 the functional blocks may be implemented by such hardware. For example, processor 1001 may be implemented using at least one of these hardware components.

[0172] Furthermore, notification of information is not limited to the embodiments / models described herein and may be carried out by other means. For example, notification of information may be carried out by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), upper layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or combinations thereof. RRC signaling may also be called RRC messages, and may be, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0173] Each aspect / embodiment described herein may be applied to at least one of the following: Long Term Evolution (LTE), LTE-Advanced (LTE-A), 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 (NR), W-CDMA®, GSM®, CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi®), IEEE 802.16 (WiMAX®), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth®, and other appropriate systems, as well as next-generation systems extended based thereon. Furthermore, multiple systems may be applied in combination (for example, a combination of at least one of LTE and LTE-A with 5G).

[0174] The processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described herein may be reordered, provided they are consistent with each other. For example, the methods described herein present various step elements in an exemplary order and are not limited to that specific order.

[0175] The specific operations described in this disclosure as being performed by a base station may, in some cases, be performed by its upper node. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal can be performed by the base station and at least one other network node (for example, an MME or S-GW, but not limited to these). Although the above example illustrates a case where there is one other network node besides the base station, it may also be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0176] Information and signals (such as data) can be output from a higher layer (or lower layer) to a lower layer (or higher layer). Input and output may occur via multiple network nodes.

[0177] The input and output information may be stored in a specific location (e.g., memory) or managed using a management table. The input and output information may be overwritten, updated, or appended to. Output information may be deleted. Input information may be transmitted to other devices.

[0178] The determination may be made by a value represented by one bit (0 or 1), by a boolean value (true or false), or by a numerical comparison (for example, a comparison with a predetermined value).

[0179] Each aspect / embodiment described herein may be used individually, in combination, or switched between as needed during implementation. Furthermore, notification of specific information (e.g., notification that "X is") is not limited to explicit notification, but may also be implicit (e.g., by not providing such notification).

[0180] 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.

[0181] 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.

[0182] The information, signals, etc. described in this disclosure may be represented using any of the various different technologies. 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.

[0183] 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, at least one of the channel and symbol may be a signal (signaling). Also, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, cell, frequency carrier, etc.

[0184] The terms “system” and “network” as used in this disclosure are interchangeable.

[0185] Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a given value, or other corresponding information. For example, wireless resources may be indicated by an index.

[0186] The names used for the parameters described above are not restrictive in any way. Furthermore, the formulas and other expressions using these parameters may differ from those expressly disclosed in this disclosure. Since various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, the various names assigned to these various channels and information elements are not restrictive in any way.

[0187] In this disclosure, terms such as "Base Station (BS)," "wireless base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "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.

[0188] A base station can house one or more (e.g., three) cells (also called sectors). If a base station houses multiple cells, the entire coverage area of ​​the base station can be divided into multiple smaller areas, each of which can also be provided with communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)).

[0189] The terms "cell" or "sector" refer to a portion or all of the coverage area of ​​at least one of the base stations and base station subsystems that provide communication services in this coverage.

[0190] In this disclosure, the transmission of information by a base station to a terminal may be interpreted as the base station instructing the terminal to perform control or operation based on the information.

[0191] In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0192] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or several other appropriate terms.

[0193] At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile body, the mobile body itself, etc. The mobile body may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile body (e.g., a drone, an autonomous vehicle, etc.), 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 operation. 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.

[0194] Furthermore, the term "base station" in this disclosure may be interpreted as "mobile station" (user terminal, hereinafter the same). For example, each aspect / embodiment of this disclosure may be applied to a configuration in which communication between a base station and a mobile station is replaced with communication between multiple mobile stations (which may be called, for example, Device-to-Device (D2D), Vehicle-to-Everything (V2X), etc.). In this case, the mobile station may have the functions that a base station has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, uplink channel, downlink channel, etc. may be interpreted as side channel.

[0195] Similarly, the term "mobile station" in this disclosure may be interpreted as "base station." In this case, the base station may be configured to have the functions that a mobile station has.

[0196] A wireless frame may consist of one or more frames in the time domain. Each of these frames in the time domain may be called a subframe.

[0197] A subframe may further 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.

[0198] Numerology may be communication parameters applied to at least one of the transmission and reception of a signal or channel. Numerology may include, 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, and specific windowing processes performed by the transceiver in the time domain.

[0199] 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). A slot may also be a time unit based on neurology.

[0200] 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 (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a mini-slot may be called a PDSCH (or PUSCH) mapping type B.

[0201] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Different names may be used for each of these terms.

[0202] For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. In other words, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc., instead of a subframe.

[0203] 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.

[0204] 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. Note that when a TTI is given, the actual time interval (e.g., number of symbols) in which the transport block, code block, code word, etc. are mapped may be shorter than the given TTI.

[0205] 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.

[0206] A TTI with a time length of 1ms may also be called a normal TTI, long TTI, normal subframe, long subframe, slot, etc. A TTI shorter than a normal TTI may also be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, mini slot, sub slot, slot, etc.

[0207] 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.

[0208] 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.

[0209] Furthermore, the time domain of RB may contain one or more symbols and may be the length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc., may each consist of one or more resource blocks.

[0210] One or more RBs may also be called Physical RBs (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0211] 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.

[0212] A Bandwidth Part (BWP), also known as 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 given BWP.

[0213] A BWP may include BWPs for UL (UL BWP) and BWPs for DL ​​(DL BWP). One or more BWPs may be configured within a single carrier for a UE.

[0214] 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".

[0215] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative. For example, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0216] The terms “connected,” “coupled,” or any variation thereof, mean any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” with each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, “connection” may be read as “access.” As used in this disclosure, two elements may be considered to be “connected” or “coupled” with each other using at least one of one or more wires, cables, and printed electrical connections, and, in some non-limiting and non-exclusive examples, electromagnetic energy having wavelengths in the radio frequency domain, microwave domain, and optical (both visible and invisible) domain.

[0217] The reference signal can also be abbreviated as Reference Signal (RS), and may be called a pilot depending on the applicable standard.

[0218] 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."

[0219] In the configuration of each of the above devices, "means" may be replaced with "part," "circuit," "device," etc.

[0220] Any reference to elements using designations such as “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, references to the First and Second elements do not imply that only two elements may be employed therein, or that the First element must precede the Second element in any way.

[0221] 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.

[0222] In this disclosure, if articles are added through translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0223] As used in this disclosure, the terms “determining” and “determining” may encompass a wide variety of actions. “Determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, or inquiring (e.g., searching in a table, database, or other data structure), or ascertaining. “Determining” may also include receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, or accessing (e.g., accessing data in memory). Furthermore, "judgment" and "decision" can include considering something as having been "judged" or "decided" after resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment" and "decision" can include considering something as having been "judged" or "decided" after some action. Also, "judgment (decision)" can be reinterpreted as "assuming," "expecting," or "considering."

[0224] 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."

[0225] Figure 8 shows an example of the configuration of vehicle 2001. As shown in Figure 8, vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013.

[0226] The drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor.

[0227] The steering unit 2003 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel, which is operated by the user.

[0228] The electronic control unit 2010 consists of a microprocessor 2031, memory (ROM, RAM) 2032, and communication ports (IO ports) 2033. Signals from various sensors 2021 to 2027 installed in the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0229] Signals from various sensors 2021 to 2028 include current signals from the current sensor 2021 that senses motor current, front and rear wheel rotation speed signals obtained by the rotation speed sensor 2022, front and rear wheel air pressure signals obtained by the air pressure sensor 2023, vehicle speed signals obtained by the vehicle speed sensor 2024, acceleration signals obtained by the acceleration sensor 2025, accelerator pedal depression signals obtained by the accelerator pedal sensor 2029, brake pedal depression signals obtained by the brake pedal sensor 2026, shift lever operation signals obtained by the shift lever sensor 2027, and detection signals obtained by the object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0230] The Information Services Unit 2012 consists of various devices for providing various types of information, such as driving information, traffic information, and entertainment information, including a car navigation system, audio system, speakers, television, and radio, and one or more ECUs that control these devices. The Information Services Unit 2012 uses information acquired from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of Vehicle 1.

[0231] The driver assistance system unit 2030 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 2030 also sends and receives various information via the communication module 2013 to realize driver assistance functions or autonomous driving functions.

[0232] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 1 via its communication port. For example, the communication module 2013 sends and receives data via the communication port 2033 between the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axle 2009, the microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 2028 provided in the vehicle 2001.

[0233] The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, it can send and receive various types of information to and from external devices via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station or a mobile station.

[0234] The communication module 2013 transmits current signals from current sensors input to the electronic control unit 2010 to an external device via wireless communication. The communication module 2013 also transmits, via wireless communication, other signals input to the electronic control unit 2010, including front and rear wheel rotation speed signals obtained by the rotation speed sensor 2022, front and rear wheel air pressure signals obtained by the air pressure sensor 2023, vehicle speed signals obtained by the vehicle speed sensor 2024, acceleration signals obtained by the acceleration sensor 2025, accelerator pedal depression signals obtained by the accelerator pedal sensor 2029, brake pedal depression signals obtained by the brake pedal sensor 2026, shift lever operation signals obtained by the shift lever sensor 2027, and detection signals obtained by the object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0235] The communication module 2013 receives various information (traffic information, signal information, distance information, etc.) transmitted from external devices and displays it on the information service unit 2012 installed in the vehicle. The communication module 2013 also stores the various information received from external devices in memory 2032, which is available to the microprocessor 2031. Based on the information stored in memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, sensors 2021 to 2028, etc., installed in the vehicle 2001.

[0236] Although the present disclosure has been described in detail above, it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the intent and scope of the present disclosure as defined by the claims. Therefore, the descriptions in the present disclosure are illustrative and not intended to be restrictive in any way.

[0237] (Note) The disclosure described above may also be expressed as follows:

[0238] The first feature is a terminal comprising: a control unit that performs measurements of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; and a transmission unit that transmits a report of the received quality at the physical layer, wherein the control unit performs control regarding the reporting of the received quality based on whether or not the resource for the measurement of the received quality is a discontinuous frequency resource.

[0239] The second feature is that, in the first feature, the control unit is a terminal that performs control to set the number of processing units that perform the measurement or reporting of the reception quality, as control related to the reporting of the reception quality.

[0240] The third feature is that, in the first or second feature, the control unit is a terminal that performs control to set the calculation time of the processing unit that performs the measurement or reporting of the reception quality, as control related to the reporting of the reception quality.

[0241] The fourth feature is a base station comprising: a receiving unit that receives a report of reception quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; and a control unit that sets parameters to be used for at least one of the measurement and reporting of reception quality at the physical layer in the terminal, wherein the control unit assumes that the terminal will perform control regarding the reporting of reception quality based on whether or not the resources for measuring reception quality are discontinuous frequency resources.

[0242] The fifth feature is a wireless communication system comprising a terminal and a base station, wherein the terminal comprises a control unit that performs measurements of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within the time-division duplex band is applied, and a transmission unit that transmits a report of the received quality at the physical layer, wherein the control unit performs control regarding the reporting of the received quality based on whether or not the resource for the measurement of the received quality is a discontinuous frequency resource.

[0243] The sixth feature is a wireless communication method comprising: performing a measurement of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; transmitting a report of the received quality at the physical layer; and performing control over the report of the received quality based on whether the resource for the measurement of the received quality is a discontinuous frequency resource.

[0244] 10 Wireless communication system 20 NG-RAN 100 gNB 110 Receiver 120 Transmitter 130 Control unit 200 UE 210 Wireless signal transmission / reception unit 220 Amplifier unit 230 Modulation / demodulation unit 240 Control signal / reference signal processing unit 250 Encoding / decoding unit 260 Data transmission / reception unit 270 Control unit 1001 Processor 1002 Memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus 2001 Vehicle 2002 Drive unit 2003 Steering unit 2004 Accelerator pedal 2005 Brake pedal 2006 Shift lever 2007 Left and right front wheels 2008 Left and right rear wheels 2009 Axle 2010 Electronic control unit 2012 Information service unit 2013 Communication module 2021 Current sensor 2022 Rotation speed sensor 2023 Air pressure sensor 2024 Vehicle speed sensor 2025 Acceleration sensor 2026 Brake pedal sensor 2027 Shift lever sensor 2028 Object detection sensor 2029 Accelerator pedal sensor 2030 Driver assistance system unit 2031 Microprocessor 2032 Memory (ROM, RAM) 2033 Communication port

Claims

1. A terminal comprising: a control unit that performs measurements of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; and a transmission unit that transmits a report of the received quality at the physical layer, wherein the control unit performs control regarding the report of the received quality based on whether or not the resource for the measurement of the received quality is a discontinuous frequency resource.

2. The terminal according to claim 1, wherein the control unit performs control to set the number of processing units that perform the measurement or reporting of the reception quality, as control related to the reporting of the reception quality.

3. The terminal according to claim 1, wherein the control unit performs control to set the calculation time of the processing device that performs the measurement or reporting of the reception quality, as control related to the reporting of the reception quality.

4. A base station comprising: a receiving unit that receives a report of reception quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; and a control unit that sets parameters to be used for at least one of measuring and reporting the reception quality at the physical layer, wherein the control unit assumes that the terminal performs control regarding the reporting of the reception quality based on whether the resource for measuring the reception quality is a discontinuous frequency resource.

5. A wireless communication system comprising a terminal and a base station, wherein the terminal comprises a control unit that performs measurements of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied, and a transmission unit that transmits a report of the received quality at the physical layer, wherein the control unit performs control regarding the report of the received quality based on whether the resource for the measurement of the received quality is a discontinuous frequency resource.

6. A wireless communication method comprising: performing a measurement of the received quality at the physical layer in a symbol or slot to which a duplexing scheme capable of simultaneous communication of uplink and downlink signals within a time-division duplex band is applied; transmitting a report of the received quality at the physical layer; and performing control over the report of the received quality based on whether the resource for the measurement of the received quality is a discontinuous frequency resource.

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