Terminal and wireless base station

Abstract

This terminal transmits / receives a radio signal in compliance with a sub-band full-duplex communication method in which an uplink sub-band and a downlink sub-band are allocated in a non-overlapping manner in a frequency direction within a prescribed time based on time division duplex, and receives a message indicating two or more setting patterns of an uplink and a downlink in compliance with the time division duplex. It is assumed that, in the terminal, a period of a time position pattern of the uplink sub-band and the downlink sub-band to which a sub-band full-duplex communication method is applied is determined by a specific natural number value and a repetition period related to the two or more setting patterns.

Description

Terminals and wireless base stations

[0001] The present disclosure relates to a terminal and a radio base station that support SBFD.

[0002] The 3rd Generation Partnership Project (3GPP: registered trademark) is developing specifications for the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation (NG)), and is also developing specifications for the next generation, known as Beyond 5G, 5G Evolution, or 6G.

[0003] For example, 3GPP Release 19 is studying an extension of the duplex method (Non-Patent Document 1). Specifically, regarding Sub-Band non-overlapping Full Duplex (SBFD), a duplex method that enables simultaneous use of downlink (DL) and uplink (UL) within a carrier of a time division duplex (TDD) band, it has been agreed to study a method of indicating to a terminal (User Equipment, UE) the time position (time position) of the UL sub-band and DL sub-band.

[0004] "New WID: Evolution of NR duplex operation: Sub-band full duplex (SBFD)", RP-234035, 3GPP TSG RAN Meeting #102, 3GPP, December 2023

[0005] When instructing a UE on the time positions of UL and DL subbands to which SBFD is applied, it is desirable to consider the periodicity of the TDD pattern. However, previous studies have not found an appropriate and efficient method for configuring UL and DL subbands that takes the periodicity of the TDD pattern into account.

[0006] Therefore, the following disclosure has been made in consideration of this situation, and aims to provide a terminal and a radio base station that can realize appropriate and efficient configuration of UL subbands and DL subbands to which SBFD is applied, while taking into account the periodicity of the TDD pattern.

[0007] One aspect of the present disclosure is a terminal (UE200) comprising: a communication unit (radio signal transceiver 210) that transmits and receives radio signals according to a subband full-duplex communication method in which uplink subbands and downlink subbands are allocated non-overlapping in the frequency direction within a specified time based on time division duplex; a receiving unit (control signal / reference signal processor 240) that receives a message indicating two or more setting patterns for the uplink and downlink according to the time division duplex; and a control unit (controller 270) that assumes that the period of the time position pattern of the uplink subbands and the downlink subbands to which the subband full-duplex communication method is applied is determined by a specific natural number value and a repetition period for the two or more setting patterns.

[0008] One aspect of the present disclosure is a radio base station (gNB100) comprising: a communication unit that transmits and receives radio signals according to a subband full-duplex communication method in which uplink subbands or downlink subbands are allocated non-overlapping in the frequency direction within a specified time based on time division duplex; and a transmission unit that transmits a message indicating two or more uplink and downlink setting patterns according to the time division duplex and a specific natural number value, wherein a period of the time position pattern of the uplink subbands and the downlink subbands to which the subband full-duplex communication method is applied is determined by the specific natural number value and a repetition period for the two or more setting patterns.

[0009] FIG. 1 is a diagram illustrating an overall schematic configuration of a wireless communication system 10. FIG. 2 is a diagram illustrating an example configuration of a radio frame, a subframe, and a slot used in the wireless communication system 10. FIG. 3 is a diagram illustrating an example configuration of TDD and XDD / SBFD. FIG. 4 is a functional block configuration diagram of a gNB 100 and a UE 200. FIG. 5 is a diagram illustrating an example sequence of SBFD configuration according to an operation example. FIG. 6 is a diagram illustrating an example configuration of a slot configuration period according to operation example 1. FIG. 7 is a diagram illustrating an example configuration of an SBFD time domain location periodicity and a slot configuration period according to operation example 1. FIG. 8 is a diagram illustrating operation example 2 (option 2-1-1). FIG. 9 is a diagram illustrating operation example 2 (option 2-1-2). FIG. 10 is a diagram illustrating operation example 3 (option 3-1). FIG. 11 is a diagram illustrating operation example 3 (option 3-2-1). FIG. 12 is a diagram illustrating operation example 3 (option 3-2-2). FIG. 13 is a diagram illustrating an example hardware configuration of a gNB 100 and a UE 200. FIG. 14 is a diagram showing an example of the configuration of a vehicle 2001.

[0010] Hereinafter, embodiments will be described with reference to the drawings. Note that the same or similar reference numerals are used to designate the same functions or configurations, and descriptions thereof will be omitted as appropriate.

[0011] (1) Overall Schematic Configuration of Wireless Communication System Fig. 1 is a diagram showing the overall schematic configuration of a wireless communication system 10 according to this embodiment. The wireless communication system 10 is a wireless communication system conforming to 5G New Radio (NR) and includes a Next Generation-Radio Access Network 20 (hereinafter, NG-RAN 20) and a terminal 200 (hereinafter, UE 200, User Equipment, UE). Note that the wireless communication system 10 may also be a wireless communication system conforming to a scheme called Beyond 5G, 5G Evolution, or 6G.

[0012] The NG-RAN 20 includes a radio base station 100 (hereinafter, gNB 100). Note that the specific configuration of the radio communication system 10, including the number of gNBs and UEs, is not limited to the example shown in FIG. 1 .

[0013] The NG-RAN 20 actually includes a plurality of NG-RAN nodes, specifically, gNBs (or ng-eNBs), and is connected to a 5G-compliant core network (5GC, not shown). The NG-RAN 20 and the 5GC may also be simply referred to as a "network."

[0014] The gNB 100 is a 5G-compliant radio base station that performs 5G-compliant radio communication with the UE 200. The gNB 100 and the UE 200 are capable of supporting Massive MIMO (Multiple-Input Multiple-Output), which generates a more directional antenna beam (hereinafter referred to as beam BM) by controlling radio signals transmitted from multiple antenna elements, Carrier Aggregation (CA), which aggregates multiple component carriers (CCs), and Dual Connectivity (DC), which simultaneously communicates between the UE and two NG-RAN nodes.

[0015] The type of DC may be Multi-RAT Dual Connectivity (MR-DC), which uses multiple radio access technologies, or NR-NR Dual Connectivity (NR-DC), which uses only NR. MR-DC may also be E-UTRA-NR Dual Connectivity (EN-DC), in which the eNB constitutes the master node (MN) and the gNB constitutes the secondary node (SN), or NR-E-UTRA Dual Connectivity (NE-DC), which is the reverse.

[0016] The gNB 100 can transmit multiple beams BM with different transmission directions (which may also be simply referred to as directions, or radiation directions, or coverages) in a space- and time-division manner. Note that the gNB 100 may transmit multiple beams BM simultaneously.

[0017] The wireless communication system 10 may also support multiple frequency ranges (FR). Specifically, the wireless communication system 10 may support the following frequency ranges:

[0018] ・FR1: 410 MHz to 7.125 GHz ・FR2-1: 24.25 GHz to 52.6 GHz FR1 may use a sub-carrier spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5 to 100 MHz. FR2-1 is a higher frequency than FR1 and may use a sub-carrier spacing (SCS) of 60 or 120 kHz (including 240 kHz) and a bandwidth (BW) of 50 to 400 MHz.

[0019] Note that SCS may be interpreted as numerology, which is defined in 3GPP TS38.300 and corresponds to one subcarrier spacing in the frequency domain.

[0020] Furthermore, the wireless communication system 10 also supports a frequency band higher than the FR2-1 frequency band. Specifically, the wireless communication system 10 supports a frequency band exceeding 52.6 GHz up to 71 GHz. Such a high frequency band may be referred to as FR2-2.

[0021] When using bands above 52.6 GHz, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform - Spread (DFT-S-OFDM) with larger Sub-Carrier Spacing (SCS) may be applied.

[0022] Additionally, as mentioned above, in high frequency bands such as FR2-2, increased inter-carrier phase noise becomes an issue, which may necessitate the application of a larger (wider) SCS or a single-carrier waveform.

[0023] The larger the SCS, the shorter the symbol / cyclic prefix (CP) period and slot period (assuming a 14 symbol / slot configuration is maintained). Figure 2 shows an example of the configuration of radio frames, subframes, and slots used in the wireless communication system 10.

[0024] If the 14 symbols / slot configuration is maintained, the larger (wider) the SCS, the shorter the symbol period (and slot period). The time direction may be called the time domain, symbol period, symbol length, or symbol time. The frequency direction may be called the frequency domain, resource block, subcarrier, or BWP (Bandwidth part).

[0025] The frequency resources may include component carriers, subcarriers, resource blocks (RBs), resource block groups (RBGs), bandwidth parts (BWPs), etc. The time resources may include symbols, slots, minislots, subframes, radio frames, discontinuous reception (DRX) periods, etc.

[0026] The number of symbols constituting one slot does not necessarily have to be 14 (for example, 28 or 56 symbols). The number of slots per subframe may differ depending on the SCS.

[0027] The wireless communication system 10 may use an SSB (SS / PBCH Block) that is configured from a synchronization signal (SS) and a downlink physical broadcast channel (PBCH).

[0028] SSBs are transmitted periodically from the network mainly to allow UE 200 to detect cell IDs and reception timings when starting communication. In NR, SSBs are also used to measure the reception quality of each cell. The SSB transmission periodicity may be specified as 5, 10, 20, 40, 80, 160 milliseconds, etc. Note that the initial access UE 200 may assume a transmission period of 20 milliseconds.

[0029] Furthermore, multiple duplexing methods may be used in the wireless communication system 10. Specifically, time division duplexing (TDD) and frequency division duplexing (FDD) may be used. The duplexing method may be interpreted as a method for realizing simultaneous transmission and reception (duplex communication) of downlink (DL) and uplink (UL).

[0030] Furthermore, the wireless communication system 10 may use another duplexing method that enables simultaneous use of DL and UL, specifically, XDD (Cross Division Duplex) / SBFD (Sub-Band non-overlapping Full Duplex).

[0031] Figure 3 shows an example of the configuration of TDD and XDD / SBFD. As shown in Figure 3, in TDD defined in 3GPP Releases 15 to 17, DL, UL, or F (flexible: can be set to DL or UL) can be set for each symbol and instructed to UE 200.

[0032] On the other hand, in XDD / SBFD, which is being considered in 3GPP Release 18, gNB100 can instruct UE200 to configure specific frequency resources (e.g., subbands) as DL and other frequency resources as UL at a specified time T, such as a symbol.

[0033] XDD / SBFD allows simultaneous use of DL and UL within a carrier (CC) in the TDD band. Using the central portion of the frequency resources within the DL and UL carriers can avoid or mitigate potential cross-link interference (CLI) with adjacent carriers. XDD / SBFD may also be referred to as a type of full duplex, or FDD full duplex, or as sub-band (DL / UL) full duplex, as abbreviated as SBFD.

[0034] In SBFD, frequency resources for DL ​​(DL band) and frequency resources for UL (UL band) are allocated in a non-overlapping manner to the same duplex band on the same time period.

[0035] Specifically, XDD / SBFD is a scheme in which DL bands and UL bands are allocated non-overlappingly in the frequency direction within a specified time T based on time division duplex. The DL band may be interpreted as a DL subband, and the UL band may be interpreted as a UL subband. In the following, XDD / SBFD will be abbreviated simply as SBFD where appropriate.

[0036] (2) Functional Block Configuration of Wireless Communication System Next, a functional block configuration of the wireless communication system 10 will be described. Specifically, a functional block configuration of the UE 200 will be described. Fig. 4 is a functional block configuration diagram of the gNB 100 and the UE 200.

[0037] As shown in FIG. 4 , the UE 200 includes a radio signal transmitting / receiving 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 transmitting / receiving unit 260, and a control unit 270.

[0038] It should be noted that Fig. 4 shows only the main functional blocks relevant to the description of the embodiment, and that the UE 200 (gNB 100) has other functional blocks (e.g., a power supply unit, etc.). Fig. 4 shows the functional block configuration of the UE 200, and for the hardware configuration, please refer to Fig. 13.

[0039] The radio signal transmitting and receiving unit 210 transmits and receives radio signals conforming to NR. The radio signal transmitting and receiving unit 210 can support Massive MIMO, which generates a more directional beam by controlling radio (RF) signals transmitted from multiple antenna elements, Carrier Aggregation (CA), which aggregates and uses multiple component carriers (CCs), and Dual Connectivity (DC), which simultaneously communicates between a UE and two NG-RAN nodes.

[0040] Furthermore, the radio signal transceiver 210 can transmit and receive radio signals in accordance with SBFD, i.e., subband full-duplex (SBFD) in which uplink subbands (UL subbands) and downlink subbands (DL subbands) are allocated non-overlappingly in the frequency direction within a specified time based on time division duplexing. In this embodiment, the radio signal transceiver 210 constitutes a communication unit. Of course, the radio signal transceiver 210 may also support duplexing methods such as TDD and FDD (frequency division duplexing). The amplifier 220 is constituted by a PA (power amplifier) / LNA (low noise amplifier) ​​or the like. The amplifier 220 amplifies the signal output from the modem 230 to a predetermined power level. The amplifier 220 also amplifies the RF signal output from the radio signal transceiver 210.

[0041] The modem unit 230 performs data modulation / demodulation, transmission power setting, resource block allocation, etc. for each predetermined communication destination (e.g., gNB 100). The modem unit 230 may apply Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform - Spread (DFT-S-OFDM). Furthermore, DFT-S-OFDM may be used not only for the uplink (UL) but also for the downlink (DL).

[0042] The control signal and reference signal processor 240 executes processing related to various control signals transmitted and received by the UE 200 and processing related to various reference signals transmitted and received by the UE 200 .

[0043] Specifically, the control signal / reference signal processing unit 240 receives various control signals, for example, control signals of a radio resource control layer (RRC), transmitted via a predetermined control channel from the gNB 100. In addition, the control signal / reference signal processing unit 240 transmits various control signals to the gNB 100 via a predetermined control channel.

[0044] The control signal / reference signal processor 240 performs processing using reference signals (RS) such as a Demodulation Reference Signal (DMRS) and a Phase Tracking Reference Signal (PTRS).

[0045] DMRS is a terminal-specific reference signal (pilot signal) known between the base station and the terminal to estimate the fading channel used for data demodulation, while PTRS is a terminal-specific reference signal intended to estimate phase noise, which is an issue in high frequency bands.

[0046] In addition to the DMRS and PTRS, the reference signals may also include a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information.

[0047] The channels include a control channel and a data channel, and the control channel may include a PDCCH, a PUCCH (Physical Uplink Control Channel), a RACH (Random Access Channel, Downlink Control Information (DCI) including a Random Access Radio Network Temporary Identifier (RA-RNTI)), a Physical Broadcast Channel (PBCH), etc.

[0048] Furthermore, the data channel includes a PDSCH and a PUSCH (Physical Uplink Shared Channel), etc. Data may refer to data transmitted via a data channel.

[0049] The control signal and reference signal processor 240 may transmit capability information of the UE 200 (UE Capability Information) to the network. The control signal and reference signal processor 240 may also receive a message indicating an uplink and downlink configuration pattern according to time division duplexing (TDD). In this embodiment, the control signal and reference signal processor 240 may constitute a receiver.

[0050] Specifically, the control signal and reference signal processor 240 may transmit an RRC message including dl-UL-TransmissionPeriodicity to the network (gNB 100). dl-UL-TransmissionPeriodicity may indicate a UL and DL configuration pattern according to TDD. dl-UL-TransmissionPeriodicity may be included as a type of field in, for example, TDD-UL-DL-ConfigCommon (see 3GPP TS38.331), which indicates UL / DL configuration according to TDD. TDD-UL-DL-ConfigCommon may be included, for example, in ServingCellConfigCommon (see 3GPP TS38.331), which specifies common configuration of serving cells.

[0051] The encoding / decoding unit 250 performs data division / concatenation and channel coding / decoding for each predetermined communication destination (gNB 100 or another gNB).

[0052] Specifically, the encoding / decoding unit 250 divides the data output from the data transmitting / receiving unit 260 into pieces of a predetermined size, performs channel coding on the divided data, decodes the data output from the modem unit 230, and concatenates the decoded data.

[0053] The data transmitter / receiver 260 transmits and receives Protocol Data Units (PDUs) and Service Data Units (SDUs). Specifically, the data transmitter / receiver 260 assembles and disassembles PDUs / SDUs in multiple layers (such as a Medium Access Control layer (MAC), a Radio Link Control layer (RLC), and a Packet Data Convergence Protocol layer (PDCP)). The data transmitter / receiver 260 also performs data error correction and retransmission control based on Hybrid Automatic Repeat Request (Hybrid ARQ).

[0054] The control unit 270 controls each functional block constituting the UE 200. In particular, in this embodiment, the control unit 270 can execute control related to SBFD.

[0055] Specifically, the control unit 270 may assume that the period of the time position pattern of the UL subband and DL subband to which the subband full duplex (SBFD) is applied is determined by a specific natural number value and a repetition period for two or more uplink and downlink configuration patterns according to TDD. The repetition period for two or more UL and DL configuration patterns according to TDD may be referred to as a slot configuration period. For example, when two UL and DL configuration patterns according to TDD are configured, if the period of the first configuration pattern (e.g., pattern 1) is P and the period of the second configuration pattern (e.g., pattern 2) is P2, the slot configuration period may be represented by P+P2.

[0056] More specifically, the control unit 270 may assume that the periodicity of the time domain location indication of the subband to which SBFD is applied is determined by an integer value M and a slot configuration period (e.g., P+P2). Note that although the integer value M is used here, it may also be a natural number.

[0057] The control unit 270 may assume that the period of the time location pattern, specifically the time domain location indication, is a value (M*(P+P2)) obtained by multiplying a specific natural number (which may be an integer) by the slot configuration period (e.g., P+P2). Note that the control unit 270 may add a predefined offset or an offset value instructed by the network instead of simply multiplying M by P.

[0058] Furthermore, when multiple slot configuration periods are included within the period of the time position pattern of the UL subband and DL subband to which SBFD is applied, the control unit 270 may assume that at least one period in the time direction according to SBFD is included. Specifically, when multiple slot configuration periods are included within the period of the time position pattern of the UL subband and DL subband, the control unit 270 may assume that at least one symbol according to SBFD (SBFD symbol) is included. In other words, the control unit 270 may assume that an SBFD symbol is present in at least one slot configuration period within the period of the SBFD subband time position pattern.

[0059] Note that instead of SBFD symbols, SBFD slots (or minislots) may be interpreted as periods in the time direction according to SBFD.

[0060] Furthermore, when multiple slot configuration periods are included within the period of the time position pattern of the UL subband and DL subband, control unit 270 may assume that two or more periods (e.g., symbols) in the time direction according to SBFD are included. In other words, control unit 270 may assume that an SBFD symbol is present in one or multiple (e.g., 1≦N≦M) slot configuration periods within the period of the SBFD subband time position pattern.

[0061] Note that the control unit 270 may assume that the longer the period of the time position pattern, the more periods in the time direction that comply with SBFD are included.

[0062] Furthermore, the gNB100 may have functions corresponding to the functions of the above-mentioned UE 200. Specifically, the radio signal transceiver unit 210 of the gNB100 may constitute a communication unit that transmits and receives radio signals according to a subband full-duplex communication scheme in which uplink subbands or downlink subbands are allocated non-overlappingly in the frequency direction within a specified time based on time division duplex, and the control signal and reference signal processor 240 of the gNB100 may constitute a transmission unit that transmits a message indicating uplink and downlink configuration patterns according to time division duplex and the value of a specific natural number.

[0063] (3) Operation of the Wireless Communication System Next, a description will be given of the operation of the wireless communication system 10. Specifically, a description will be given of the operation related to communication using time domain locations of UL subbands and DL subbands to which SBFD is applied.

[0064] (3.1) Assumptions and Issues Regarding SBFD, 3GPP has agreed to consider a method for indicating the time positions of UL subbands and DL subbands to a UE. For example, when two or more TDD patterns are configured, the period in the time domain of the subband to which SBFD is applied may be an integer multiple of the repetition period of the two or more TDD patterns.

[0065] However, previous studies have not found an appropriate and efficient configuration of UL and DL subbands that takes into account the periodicity of the TDD pattern.

[0066] In the following, "SBFD DL symbol" may refer to a symbol indicated as downlink by tdd-UL-DL-ConfigurationCommon (and / or tdd-UL-DL-ConfigurationDedicated), and the SBFD subband may be configured in units of symbols.

[0067] "SBFD flexible symbol" may mean a symbol indicated as Flexible (F) by tdd-UL-DL-ConfigurationCommon (and / or tdd-UL-DL-ConfigurationDedicated), and SBFD subbands may be configured on a symbol-by-symbol basis.

[0068] A "non-SBFD symbol" may refer to a symbol for which no SBFD subband is configured.

[0069] (3.2) Operation Overview Figure 5 shows an example of a sequence for configuring SBFD according to an operation example. As shown in Figure 5, the UE may receive dl-UL-TransmissionPeriodicity included in ServingCellConfigCommon and configure UL and DL to which SBFD is applied based on the content of the received dl-UL-TransmissionPeriodicity. The UE may perform transmission and reception via the configured UL / DL.

[0070] In the following operation example, it may be assumed that two or more TDD-UL-DL patterns are configured. The period of the time domain location in the SBFD subband may be an integer multiple of the period of the TDD-UL-DL pattern (which may also be called a TDD pattern) configured by dl-UL-TransmissionPeriodicity of TDD-UL-DL-ConfigCommon.

[0071] (Example 1): Determination of the periodicity of time positions in SBFD subbands, candidate values, and possible restrictions.

[0072] (Example 2): When the period of the SBFD subband time position pattern contains multiple TDD pattern periods, i.e., when the period of the SBFD subband time position pattern is greater than the period of the TDD pattern (M>1), one of the following options may be applied:

[0073] (Option 1): An SBFD symbol is present in only one TDD pattern period within the period of the SBFD sub-band time position pattern.

[0074] (Option 2): The SBFD symbol occurs in one or more (e.g., 1≦N≦M) TDD pattern periods within the period of the SBFD subband time position pattern.

[0075] (3.3) Operation Example 1 In Operation Example 1, the periodicity of the SBFD subband time location pattern (SBFD time domain location periodicity (M)) may be determined based on an integer value M and two or more TDD-UL-DL pattern periods (e.g., slot configuration period) set by dl-UL-TransmissionPeriodicity of TDD-UL-DL-ConfigCommon.

[0076] For example, as shown in Figure 6, when two TDD-UL-DL patterns are configured, if the period of the first configuration pattern (e.g., pattern 1) is P and the period of the second configuration pattern (e.g., pattern 2) is P2, the slot configuration period may be represented as P + P2. Although not particularly limited, the TDD-UL-DL pattern (DDDSU) of pattern 1 may be different from the TDD-UL-DL pattern (DDSUU) of pattern 2. Note that in DDDSU or DDSUU, D: downlink (DL) symbol, S: DL / uplink (UL) or guard symbol, and U: UL symbol (see 3GPP TS38.101-4). The shaded areas in the figure indicate time positions (symbols) to which SBFD symbols may be assigned.

[0077] In the following, a case will be exemplified in which the TDD-UL-DL pattern (DDDSU) with a slot configuration period of pattern 1 includes a TDD-UL-DL pattern (DDSUU) with a slot configuration period of pattern 2.

[0078] Fig. 7 shows configuration examples of the SBFD time domain location periodicity, TDD pattern periodicity, and slot configuration period according to operation example 1. Fig. 7 shows an example in which the SBFD time domain location periodicity (M) is "2" or "4", the TDD pattern periodicity of pattern 1 is 2.5 ms, and the TDD pattern periodicity of pattern 2 is 2.5 ms. The SBFD time domain location periodicity (M=2) may mean that the TDD pattern of "DDDSU" of pattern 1 and the TDD pattern of "DDSUU" of pattern 2 (i.e., the slot configuration period) are repeated twice.

[0079] The integer value M may be set / indicated by the gNB. If M is not set / indicated, a default value may be defined by the 3GPP specifications. For example, the default value may be "1".

[0080] Candidate values ​​for M may be 1, 2, 4, 5, 8, 10, 12, 16, 18, 20, 40, etc. The maximum value of M may be defined by 3GPP specifications. As a variation, candidate values ​​may be any integer value less than or equal to the maximum value, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, etc.

[0081] The constraint on M*(P+P2) may be assumed to be the period of the TDD-UL-DL pattern. For example, M*P may be a fraction of 20 ms (or M*(P+P2) may be an integer multiple of 20 ms), or 20 / (M*(P+P2)), where the first symbol per period is the first symbol in an even frame.

[0082] Alternatively, the possible / allowed values ​​of M*(P+P2) may be defined by 3GPP specifications. For example, the possible / allowed values ​​of M*(P+P2) may include some or all of the following values:

[0083] 0.5ms, 0.625ms, 1ms, 1.25ms, 2ms, 2.5ms, 4ms, 5ms, 8ms, 10ms, 20ms, 40ms, 80ms, 100ms, 120ms, 160ms, etc. Candidate values ​​for M and / or M*(P+P2) may be different for each value of SCS.

[0084] (3.4) Operation Example 2 In Operation Example 2, a period in the time direction according to SBFD will be described. The period in the time direction according to SBFD may be read as an SBFD symbol, an SBFD symbol pattern, or an SBFD subband time location patterns.

[0085] In Operation Example 2, a case where the SBFD time domain location periodicity is the same as the slot configuration period (i.e., M=1) will be described. For Operation Example 2, the following options are considered.

[0086] In Option 2-1, the SBFD symbol pattern in the TDD-UL-DL pattern is configured at one SBFD time domain location periodicity. Option 2-1 can further include the following options:

[0087] In option 2-1-1, the time domain period according to SBFD (SBFD symbol pattern) may or may not be set for each of two TDD patterns in one SBFD time domain location periodicity. The SBFD symbol pattern may or may not be set separately for each TDD pattern. For example, as shown in Figure 8, SBFD symbols may be set to the second and third Ds for the TDD pattern "DDDSU" in pattern 1, and an SBFD symbol may be set to the first D for the TDD pattern "DDSUU" in pattern 2.

[0088] In this option, the SBFD symbol pattern of pattern 1 (hereinafter referred to as SBFD symbol pattern 1) may be specified for pattern 1 in tdd-UL-DL-ConfigurationCommon, and the SBFD symbol pattern of pattern 2 (hereinafter referred to as SBFD symbol pattern 2) may be specified for pattern 1 in tdd-UL-DL-ConfigurationCommon.

[0089] The slot configuration period of (P+P2) includes S1=P*2^(μ_ref) slots and second S2=P*2^(μ_ref) slots, where μ_ref is the reference SCS provided by referenceSubcarrierSpacing of tdd-UL-DL-ConfigurationCommon.

[0090] When only SBFD-symbol-pattern1 is set, SBFD-symbol-pattern1 is applied to the first S1=P*2^(μ_ref) slots in one SBFD time domain location periodicity. There is no SBFD symbol in the second S2=P*2^(μ_ref) slots in one SBFD time domain location periodicity.

[0091] When only SBFD-symbol-pattern2 is set, SBFD-symbol-pattern2 is applied to the second S2=P*2^(μ_ref) slots in one SBFD time domain location periodicity. There is no SBFD symbol in the first S1=P*2^(μ_ref) slots in one SBFD time domain location periodicity.

[0092] When SBFD-symbol-pattern1 and SBFD-symbol-pattern2 are set, SBFD-symbol-pattern1 is applied to the first S1=P*2^(μ_ref) slots in one SBFD time domain location periodicity, and SBFD-symbol-pattern2 is applied to the second S2=P*2^(μ_ref) slots in one SBFD time domain location periodicity.

[0093] To specify an SBFD-symbol-pattern for each of the two TDD patterns, any of the following examples may be further applied. Below, an example is given of a method for specifying an SBFD-symbol-pattern for one TDD pattern periodicity. Therefore, the following method may be applied to each of the two TDD patterns.

[0094] ・(Example 2-1-1): Determination / indication of TDD pattern periodicity including SBFD symbols + indication of one set of consecutive SBFD symbols within one TDD pattern periodicity.

[0095] A set of consecutive SBFD symbols within one TDD pattern periodicity may be indicated and applied only to a specific TDD pattern periodicity. The TDD pattern periodicity including the SBFD symbols may be predefined by 3GPP specifications (e.g., the first / last TDD pattern periodicity) or explicitly indicated by the gNB.

[0096] For example, the index of the TDD pattern periodicity may be explicitly indicated. Index #1 may mean the second TDD pattern periodicity among the TDD pattern periodicities included in the slot configuration period (i.e., SBFD time domain location periodicity).

[0097] If a TDD pattern periodicity index is not specified, a default TDD pattern periodicity index may be defined, for example, as the first / last TDD pattern periodicity.

[0098] As a method for indicating one set of consecutive SBFD symbols within the TDD pattern periodicity, the following example may be applied.

[0099] (Example 2-1-1-1): {start symbol, length} (or a method similar to SLIV (Start and Length Indicator Value)) indicates consecutive SBFD symbols within the TDD pattern periodicity, and the start symbol / slot / position of the SBFD symbols is relative to the start symbol / slot / position of the TDD pattern periodicity. In Example 2-1-1-1, parameters such as {start symbol, length} may be replaced with {start slot, start symbol within the slot, length (number of symbols)}.

[0100] For example, as shown in Figure 8, for the TDD pattern "DDDSU" of pattern 1, the second D may be the start symbol and the length may be two symbols. For the TDD pattern "DDSUU" of pattern 2, the first D may be the start symbol and the length may be one symbol.

[0101] (Example 2-1-1-2): The bitmap or TDD period SBFD pattern index indicates whether the symbols / slots (excluding UL symbols / slots) within the TDD pattern periodicity are SBFD or non-SBFD.

[0102] In the case of a bitmap, one bit indicates a slot / symbol, and the length of the bitmap may depend on one TDD pattern periodicity. If multiple bitmaps are defined or configured, one bitmap may be indicated by the TDD period SBFD pattern index. Alternatively, it may be configured as a group bitmap + bitmap within the group.

[0103] (Example 2-1-1-3): The configuration {slot index, slot-SBFD pattern} or {slot index, slot SBFD pattern index} may indicate the slot SBFD pattern of a slot within the TDD pattern periodicity.

[0104] The slot index may be relative to the index in the TDD pattern periodicity. The slot-SBFD pattern may be a bitmap (each bit maps to one symbol in the slot), "all-SBFD" (indicating all SBFD symbols in the slot), or "all-non-SBFD" (indicating all non-SBFD symbols in the slot).

[0105] It may also be configured by the "number of SBFD symbols in a slot" and / or the "number of non-SBFD symbols in a slot" (or the number of non-SBFD DL symbols, the number of non-SBFD flexible symbols, the number of UL symbols).

[0106] The list of slot SBFD patterns may be set or predefined by 3GPP specifications, for example, as a list / table with each row / element indicating the SBFD pattern of a slot.

[0107] The slot SBFD pattern index may indicate the slot SBFD pattern of the corresponding slot index.

[0108] Although the above examples have mainly described a method of indicating one set, two or more sets may be indicated by directly indicating an SBFD symbol for each of two or more TDD patterns. Therefore, two or more sets of parameters may be used, such as {start symbol, length} (or a method similar to SLIV (Start and Length Indicator Value)), {start slot, start symbol within slot, length (number of symbols)}, {slot index, slot-SBFD pattern}, {slot index, slot SBFD pattern index}, etc.

[0109] The indication of the start slot may count U slots, but not necessarily UL slots, and the indication of the start symbol may count U symbols, but not necessarily UL symbols.

[0110] In option 2-1-2, a time domain period according to SBFD (SBFD symbol pattern) is configured for one slot configuration period in one SBFD time domain location periodicity and is applied to at least one TDD pattern included in the slot configuration period. For example, as shown in Fig. 9, when SBFD symbols are configured for the first and second Ds for a TDD pattern, SBFD symbols may be configured for the first and second Ds for the TDD pattern "DDDSU" in pattern 1, and SBFD symbols may be configured for the first and second Ds for the TDD pattern "DDSUU" in pattern 2.

[0111] In this option, the SBFD symbol pattern may be indicated in tdd-UL-DL-ConfigurationCommon. The TDD pattern to which the SBFD symbol pattern is applied may be indicated by SBFD-symbol-in-TDD-pattern. The candidate values ​​of SBFD-symbol-in-TDD-pattern may be {both, pattern1, pattern2}, etc.

[0112] The slot configuration period of (P+P2) includes S1=P*2^(μ_ref) slots and second S2=P*2^(μ_ref) slots, where μ_ref is the reference SCS provided by referenceSubcarrierSpacing of tdd-UL-DL-ConfigurationCommon.

[0113] When only pattern1 is specified by SBFD-symbol-in-TDD-pattern, the SBFD-symbol-pattern is applied to the first S1=P*2^(μ_ref) slots in one SBFD time domain location periodicity. There is no SBFD symbol in the second S2=P*2^(μ_ref) slots in one SBFD time domain location periodicity.

[0114] If only pattern2 is specified by SBFD-symbol-in-TDD-pattern, the SBFD-symbol-pattern is applied to the second S2=P*2^(μ_ref) slots in one SBFD time domain location periodicity. There is no SBFD symbol in the first S1=P*2^(μ_ref) slots in one SBFD time domain location periodicity.

[0115] If both is specified by the SBFD-symbol-in-TDD-pattern, the SBFD-symbol-pattern is applied to the first S1=P*2^(μ_ref) slots in one SBFD time domain location periodicity, and to the second S2=P*2^(μ_ref) slots in one SBFD time domain location periodicity.

[0116] To indicate an SBFD-symbol-pattern in one TDD pattern periodicity, the above-mentioned examples such as (Example 2-1-1), (Example 2-1-1-1), (Example 2-1-1-2), and (Example 2-1-1-3) may be applied.

[0117] In option 2-2, SBFD symbols in the TDD-UL-DL pattern are directly indicated in one SBFD time domain location periodicity, specifically, one or more sets of consecutive SBFD symbols in the SBFD time domain location periodicity are directly indicated.

[0118] As a method for indicating one or more consecutive sets of SBFD symbols within the SBFD time domain location periodicity, the following example may be applied:

[0119] - (Example 2-2-1): The bitmap or SBFD period pattern index indicates whether the symbols / slots (excluding UL symbols / slots) within the SBFD time domain location periodicity are SBFD or non-SBFD.

[0120] For bitmaps, one bit indicates a slot / symbol, and the length of the bitmap may depend on one TDD pattern periodicity. If multiple bitmaps are defined or configured for the SBFD time domain location periodicity, one bitmap may be indicated by the SBFD period pattern index.

[0121] As a variation, the UE may assume SBFD symbols indicated only within one TDD pattern periodicity, and may not assume SBFD symbols across multiple TDD pattern periodicities, or may be configured as a group bitmap plus a bitmap within the group.

[0122] (Example 2-2-2): The configuration of {slot index, slot-SBFD pattern} or {slot index, slot SBFD pattern index} may indicate the slot-SBFD pattern of a slot within the SBFD time domain location periodicity.

[0123] The slot index may be relative to the index in the TDD pattern periodicity. The slot-SBFD pattern may be a bitmap (each bit maps to one symbol in the slot), "all-SBFD" (indicating all SBFD symbols in the slot), or "all-non-SBFD" (indicating all non-SBFD symbols in the slot).

[0124] It may also be configured by the "number of SBFD symbols in a slot" and / or the "number of non-SBFD symbols in a slot" (or the number of non-SBFD DL symbols, the number of non-SBFD flexible symbols, the number of UL symbols).

[0125] The list of slot SBFD patterns may be set or predefined by 3GPP specifications, for example, as a list / table with each row / element indicating the SBFD pattern of a slot.

[0126] The slot SBFD pattern index may indicate the slot SBFD pattern of the corresponding slot index.

[0127] As a variation, the UE may assume SBFD symbols indicated only within one TDD pattern periodicity, or the UE may not assume SBFD symbols spanning multiple TDD pattern periodicities.

[0128] In Option 2-2, the slot configuration period of (P+P2) includes S1=P*2^(μ_ref) slots and second S2=P*2^(μ_ref) slots, where μ_ref is the reference SCS provided by referenceSubcarrierSpacing of tdd-UL-DL-ConfigurationCommon.

[0129] In option 2-2, the UE may assume consecutive SBFD symbols in the first S1 slots if there is an SBFD symbol in the first S1=P*2^(μ_ref) slots, and may assume consecutive SBFD symbols in the second S2 slots if there is an SBFD symbol in the second S2=P*2^(μ_ref) slots.

[0130] (3.5) Operation Example 3 In Operation Example 3, a period in the time direction according to SBFD will be described. The period in the time direction according to SBFD may be read as an SBFD symbol, an SBFD symbol pattern, or an SBFD subband time location patterns.

[0131] In Operation Example 3, a case where the SBFD time domain location periodicity is longer than the slot configuration period (i.e., M≧2) will be described. For Operation Example 3, the following options are considered.

[0132] In option 3-1, when the SBFD time domain location periodicity includes two or more slot configuration periods, the SBFD symbol pattern is configured for one slot configuration period. For example, as shown in Fig. 10, when M is 2, the SBFD symbol pattern may be applied to the first slot configuration period but not to the second slot configuration period. Option 3-1 may further include the following options.

[0133] In option 3-1-1, a set of consecutive SBFD symbols is directly indicated in one SBFD time domain location periodicity. An SBFD symbol may exist in one slot configuration period of the SBFD time domain location periodicity. In this case, any of the following examples may also apply:

[0134] (Example 3-1-1-1): {start symbol, length} (or a method similar to SLIV (Start and Length Indicator Value)) indicates consecutive SBFD symbols within a slot configuration period, and the start symbol / slot / position of the SBFD symbols is relative to the start symbol / slot / position of the slot configuration period. In Example 3-1-1-1, parameters such as {start symbol, length} may also be {start slot, start symbol within the slot, length (number of symbols)}.

[0135] (Example 3-1-1-2): The bitmap or SBFD pattern index for the TDD period indicates whether the symbols / slots (excluding UL symbols / slots) within the slot configuration period are SBFD or non-SBFD.

[0136] In the case of a bitmap, one bit indicates a slot / symbol, and the length of the bitmap may depend on one slot configuration period. If multiple bitmaps are defined or configured, one bitmap may be indicated by the SBFD pattern index for the TDD period. Alternatively, it may be configured as a group bitmap + a bitmap within the group.

[0137] (Example 3-1-1-3): The configuration of {slot index, slot-SBFD pattern} or {slot index, slot SBFD pattern index} may indicate the slot SBFD pattern of a slot within the slot configuration period.

[0138] The slot index may be relative to the index within the slot configuration period. The slot-SBFD pattern may be a bitmap (each bit maps to one symbol within the slot), "all-SBFD" (indicating all SBFD symbols within the slot), or "all-non-SBFD" (indicating all non-SBFD symbols within the slot).

[0139] It may also be configured by the "number of SBFD symbols in a slot" and / or the "number of non-SBFD symbols in a slot" (or the number of non-SBFD DL symbols, the number of non-SBFD flexible symbols, the number of UL symbols).

[0140] The list of slot SBFD patterns may be set or predefined by 3GPP specifications, for example, as a list / table with each row / element indicating the SBFD pattern of a slot.

[0141] The slot SBFD pattern index may indicate the slot SBFD pattern of the corresponding slot index.

[0142] As a variation, the UE may assume an SBFD symbol indicated only within one slot configuration period, or the UE may not assume an SBFD symbol spanning multiple slot configuration periods.

[0143] In option 3-1-2, the SBFD symbol pattern is configured for one slot configuration period and is applied to one or more slot configuration periods included in the SBFD time domain location periodicity.

[0144] In such an option, an SBFD symbol is configured for one slot configuration period, and the SBFD symbol applies to a specific slot configuration period. The slot configuration period including the SBFD symbol may be predefined by the 3GPP specification (e.g., the first / last slot configuration period) or explicitly indicated by the gNB.

[0145] For example, the index of the slot configuration period may be explicitly indicated. Index #1 may mean the second slot configuration period among M slot configuration periods included in the SBFD time domain location periodicity.

[0146] If a slot configuration period index is not specified, a default slot configuration period index may be defined, for example, the default slot configuration period may be the first / last slot configuration period.

[0147] As a method for indicating one set of consecutive SBFD symbols within a slot configuration period, the method described in Operation Example 2 (for example, the above-mentioned (Example 2-1-1), (Example 2-1-1-1), (Example 2-1-1-2), (Example 2-1-1-3), etc.) may be applied.

[0148] In the above examples such as (Example 2-1-1), (Example 2-1-1-1), (Example 2-1-1-2), and (Example 2-1-1-3), methods of indicating one set have been mainly described, but two or more sets may be indicated by directly indicating an SBFD symbol for each of two or more TDD patterns. Therefore, two or more sets of parameters may be used, such as {start symbol, length} (or a method similar to SLIV (Start and Length Indicator Value)), {start slot, start symbol within slot, length (number of symbols)}, {slot index, slot-SBFD pattern}, {slot index, slot SBFD pattern index}, etc.

[0149] The indication of the start slot may count U slots, but not necessarily UL slots, and the indication of the start symbol may count U symbols, but not necessarily UL symbols.

[0150] In option 3-2, if the SBFD time domain location periodicity includes two or more slot configuration periods, the SBFD symbol pattern is configured for multiple slot configuration periods. The following options are considered for option 3-2:

[0151] In option 3-2-1, the SBFD symbol pattern is the same for N (1≦N≦M) slot configuration periods. For example, as shown in FIG. 11 , the SBFD symbol pattern of the first slot configuration period is the same as the SBFD symbol pattern of the second slot configuration period.

[0152] In option 3-2-1A, one or more sets of SBFD symbols are directly indicated in the SBFD time domain location periodicity, specifically, one or more sets of consecutive SBFD symbols within the SBFD time domain location periodicity.

[0153] As a method for indicating one or more consecutive sets of SBFD symbols within the SBFD time domain location periodicity, the following example may be applied:

[0154] - (Example 3-2-1): The bitmap or SBFD period pattern index indicates whether the symbols / slots (excluding UL symbols / slots) within the SBFD time domain location periodicity are SBFD or non-SBFD.

[0155] For bitmaps, one bit indicates a slot / symbol, and the length of the bitmap may depend on one TDD pattern periodicity. If multiple bitmaps are defined or configured for the SBFD time domain location periodicity, one bitmap may be indicated by the SBFD period pattern index.

[0156] As a variation, the UE may assume SBFD symbols indicated only within one TDD pattern periodicity, and may not assume SBFD symbols across multiple TDD pattern periodicities, or may be configured as a group bitmap plus a bitmap within the group.

[0157] (Example 3-2-2): The configuration of {slot index, slot-SBFD pattern} or {slot index, slot SBFD pattern index} may indicate the slot-SBFD pattern of a slot within the SBFD time domain location periodicity.

[0158] The slot index may be relative to the index in the TDD pattern periodicity. The slot-SBFD pattern may be a bitmap (each bit maps to one symbol in the slot), "all-SBFD" (indicating all SBFD symbols in the slot), or "all-non-SBFD" (indicating all non-SBFD symbols in the slot).

[0159] It may also be configured by the "number of SBFD symbols in a slot" and / or the "number of non-SBFD symbols in a slot" (or the number of non-SBFD DL symbols, the number of non-SBFD flexible symbols, the number of UL symbols).

[0160] The list of slot SBFD patterns may be set or predefined by 3GPP specifications, for example, as a list / table with each row / element indicating the SBFD pattern of a slot.

[0161] The slot SBFD pattern index may indicate the slot SBFD pattern of the corresponding slot index.

[0162] As a variation, the UE may assume SBFD symbols indicated only within one TDD pattern periodicity, or the UE may not assume SBFD symbols spanning multiple TDD pattern periodicities.

[0163] In option 3-2-1B, in the SBFD time domain location periodicity, the SBFD symbol pattern is configured for one slot configuration period and is applied to one or more slot configuration periods included in the SBFD time domain location periodicity.

[0164] In such an option, for each slot configuration period that includes SBFD symbols, the SBFD symbols included in one slot configuration period are indicated. The slot configuration period that includes SBFD symbols may be explicitly indicated by the gNB.

[0165] For example, the index of the slot configuration period may be explicitly indicated. Indices #0 and #1 may mean the first and last slot configuration periods among the M slot configuration periods included in the SBFD time domain location periodicity.

[0166] If a slot configuration period index is not specified, a default slot configuration period index may be defined, for example, the default slot configuration period may be the first / last slot configuration period.

[0167] As a method for indicating one set of consecutive SBFD symbols within a slot configuration period, the method described in Operation Example 2 (for example, the above-mentioned (Example 2-1-1), (Example 2-1-1-1), (Example 2-1-1-2), (Example 2-1-1-3), etc.) may be applied.

[0168] In the above examples such as (Example 2-1-1), (Example 2-1-1-1), (Example 2-1-1-2), and (Example 2-1-1-3), methods of indicating one set have been mainly described, but two or more sets may be indicated by directly indicating an SBFD symbol for each of two or more TDD patterns. Therefore, two or more sets of parameters may be used, such as {start symbol, length} (or a method similar to SLIV (Start and Length Indicator Value)), {start slot, start symbol within slot, length (number of symbols)}, {slot index, slot-SBFD pattern}, {slot index, slot SBFD pattern index}, etc.

[0169] The indication of the start slot may count U slots, but not necessarily UL slots, and the indication of the start symbol may count U symbols, but not necessarily UL symbols.

[0170] In option 3-2-2, the SBFD symbol pattern included in N (1≦N≦M) slot configuration periods may be configurable for each of the slot configuration periods. Note that the SBFD symbol pattern may be different or the same for each slot configuration period. For example, as shown in FIG. 12 , the SBFD symbol pattern for the first slot configuration period may be different from the SBFD symbol pattern for the second slot configuration period.

[0171] In option 3-2-2A, one or more sets of SBFD symbols may be directly indicated in the SBFD time domain location periodicity. The direct indication method may be the same as in option 3-2-1A.

[0172] In option 3-2-2B, in the SBFD time domain location periodicity, a different SBFD symbol may be indicated for each slot configuration period.

[0173] For example, for each slot configuration period index, an SBFD symbol included in the slot configuration period may be indicated. Specifically, the indication may be {slot configuration period index #0, indication of the SBFD symbol included in the slot configuration period}, {slot configuration period index #1, indication of the SBFD symbol included in the slot configuration period}, etc.

[0174] As a method of indicating an SBFD-symbol-pattern in TDD pattern periodicity, examples such as (Example 2-1-1), (Example 2-1-1-1), (Example 2-1-1-2), and (Example 2-1-1-3) described in Operation Example 2 may be applied.

[0175] (3.6) UE Capability To achieve the above-described operations, the UE may support the following UE capability information:

[0176] Support for different SBFD symbol pattern configurations for two or more TDD-UL-DL pattern periods (slot configuration periods) Support for SBFD time domain location periodicities that are integer multiples of two or more TDD-UL-DL pattern periods (slot configuration periods) Support for SBFD symbols in multiple slot configuration periods within one SBFD time domain location periodicity Support for different SBFD symbol patterns in multiple slot configuration periods within one SBFD time domain location periodicity Support for the number of consecutive SBFD symbol sets within one SBFD time domain location periodicity According to the above-described operational example, the SBFD time domain location periodicity is determined by a specific natural number (which may be an integer value M) and the slot configuration period. Furthermore, the UE may assume that when multiple slot configuration periods are included within the SBFD time domain location periodicity, at least one period in the time direction according to SBFD (e.g., SBFD symbol) is included.

[0177] Therefore, when instructing a UE on the time positions of UL subbands and DL subbands to which SBFD is applied, it is possible to achieve appropriate and efficient configuration of UL subbands and DL subbands taking into account the slot configuration period (TDD pattern periodicity of 2 or more).

[0178] In particular, according to the above-described operational example, various assumptions can be applied to the position of the SBFD symbol when multiple slot configuration periods are included in the SBFD time domain location periodicity, thereby realizing more appropriate and efficient configuration of the UL subband and DL subband.

[0179] (4) Other Embodiments Although the embodiments have been described above, it will be obvious to those skilled in the art that the present invention is not limited to the description of the embodiments, and that various modifications and improvements are possible.

[0180] For example, in the above-described embodiment, the term "subband" is used, but the subband may simply be called a "band," or may be called by other similar terms such as an auxiliary band, a spare band, etc. Furthermore, XDD / SBFD may be a provisional name, and may be called by other similar terms as described above.

[0181] Also, in the above description, configure, activate, update, indicate, enable, specify, and select may be interchangeable. Similarly, link, associate, correspond, and map may be interchangeable, and allocate, assign, monitor, and map may be interchangeable.

[0182] Furthermore, specific, dedicated, UE-specific, and UE-dedicated may be interchangeable. Similarly, common, shared, group-common, UE-common, and UE-shared may be interchangeable.

[0183] In the present disclosure, terms such as "precoding," "precoder," "weight (precoding weight)," "Quasi-Co-Location (QCL)," "Transmission Configuration Indication state (TCI state)," "spatial relation," "spatial domain filter," "transmit power," "phase rotation," "antenna port," "antenna port group," "layer," "number of layers," "rank," "resource," "resource set," "resource group," "beam," "beam width," "beam angle," "antenna," "antenna element," "panel," etc. may be used interchangeably.

[0184] The block diagram ( FIG. 4 ) used to explain the above-described embodiment shows functional blocks. These functional blocks (components) are realized by any combination of hardware and / or software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are connected directly or indirectly (e.g., via wire, wireless, etc.) and these multiple devices. The functional block may also be realized by combining software with the single device or multiple devices.

[0185] Functions include, but are not limited to, judgment, determination, judgment, calculation, computation, 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 assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how each is implemented.

[0186] Furthermore, the above-described gNB 100 and UE 200 (the devices) may function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 13 is a diagram showing an example of the hardware configuration of the devices. As shown in Figure 13, the devices may be configured as a computer including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0187] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of the apparatus may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0188] Each functional block of the device (see FIG. 4) is realized by any hardware element of the computer device or a combination of the hardware elements.

[0189] In addition, each function of the device is realized by loading specified software (programs) onto hardware such as processor 1001 and memory 1002, causing processor 1001 to perform calculations, control communication via communication device 1004, and control at least one of reading and writing data in memory 1002 and storage 1003.

[0190] The processor 1001 controls the entire computer by running, for example, an operating system, and may be configured as a central processing unit (CPU) including an interface with peripheral devices, a control unit, an arithmetic unit, and registers.

[0191] The processor 1001 also reads programs (program codes), 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 in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. Furthermore, the various processes described above may be executed by one processor 1001, or may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may be transmitted from a network via a telecommunications line.

[0192] The memory 1002 is a computer-readable recording medium and may be configured by at least one of, for example, a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 may store a program (program code), a software module, etc., capable of executing a method according to an embodiment of the present disclosure.

[0193] Storage 1003 is a computer-readable recording medium, and may be, for example, at least one of an optical disk such as a Compact Disc ROM (CD-ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray disc), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned recording medium may be, for example, a database, a server, or other suitable medium including at least one of memory 1002 and storage 1003.

[0194] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also called, for example, a network device, a network controller, a network card, or a communication module.

[0195] The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize, for example, at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0196] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, etc.) that outputs to the outside. Note that the input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0197] Furthermore, each device such as the processor 1001 and the memory 1002 is connected to a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0198] Furthermore, the device 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), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0199] Furthermore, the notification of information is not limited to the aspects / embodiments described in the present disclosure, and may be performed using other methods. For example, the notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or a combination thereof. Furthermore, the RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0200] Each aspect / embodiment described in the present disclosure may be applied to at least one of a system using Long Term Evolution (LTE), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, a 4th generation mobile communication system (4G), a 5th generation mobile communication system (5G), a 6th generation mobile communication system (6G), an xth generation mobile communication system (xG) (where x is, for example, an integer or a decimal), Future Radio Access (FRA), New Radio (NR), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), or other suitable system, and a next-generation system extended based on these. Furthermore, a combination of multiple systems (e.g., a combination of at least one of LTE and LTE-A with 5G) may also be applied.

[0201] The order of the procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be changed unless it is consistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0202] In the present disclosure, a specific operation described as being performed by a base station may also be performed by its upper node in some cases. 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 may be performed by at least one of the base station and another network node other than the base station (for example, an MME or an S-GW, etc., but are not limited to these). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0203] Information, signals (information, etc.) may be output from a higher layer (or a lower layer) to a lower layer (or a higher layer), or may be input and output via multiple network nodes.

[0204] The input and output information may be stored in a specific location (for example, a memory) or may be managed using a management table. The input and output information may be overwritten, updated, or added to. The output information may be deleted. The input information may be transmitted to another device.

[0205] The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0206] The aspects / embodiments described in this disclosure may be used alone, in combination, or switched depending on the implementation. Notification of predetermined information (e.g., notification that "X is true") is not limited to explicit notification, but may be implicit (e.g., not notifying the predetermined information).

[0207] Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0208] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0209] The information, signals, etc. described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0210] Note that terms described 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 a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0211] As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0212] Furthermore, the information, parameters, etc. described in the present disclosure may be expressed using absolute values, may be expressed using relative values ​​from a predetermined value, or may be expressed using other corresponding information. For example, a radio resource may be indicated by an index.

[0213] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0214] In this disclosure, terms such as "base station (BS)," "radio 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.

[0215] A base station can accommodate one or more (e.g., three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, and each smaller area can be provided with communication services by a base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)).

[0216] The terms "cell" or "sector" refer to part or all of the coverage area of ​​a base station and / or base station subsystem that provides communication services within that coverage area.

[0217] In the present disclosure, the base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.

[0218] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," etc. may be used interchangeably.

[0219] 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 some other suitable terminology.

[0220] At least one of the base station and the mobile station may be referred to as 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 object, the mobile object itself, etc. The mobile object may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (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 also include devices that do 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.

[0221] Furthermore, a base station in the present disclosure may be read as a mobile station (user terminal, the same applies hereinafter). For example, the aspects / embodiments of the present 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) or Vehicle-to-Everything (V2X)). In this case, the mobile station may be configured to have the functions of a base station. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel (or sidelink).

[0222] Similarly, a mobile station in the present disclosure may be interpreted as a base station, in which case the base station may have the functions of a mobile station.

[0223] A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed 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.

[0224] Numerology may be a communication parameter that applies to the transmission and / or reception of a signal or channel, and may indicate, for example, at least one of a subcarrier spacing (SCS), a bandwidth, a symbol length, a cyclic prefix length, a transmission time interval (TTI), a number of symbols per TTI, a radio frame structure, a particular filtering operation performed by a transceiver in the frequency domain, a particular windowing operation performed by a transceiver in the time domain, etc.

[0225] A slot may consist of one or more symbols in the time domain (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) A slot may be a numerology-based time unit.

[0226] A slot may include multiple minislots. Each minislot may consist of one or more symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0227] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0228] For example, one subframe may be referred to as a transmission time interval (TTI), multiple consecutive subframes may be referred to as a TTI, or one slot or one minislot may be referred to as a TTI. That is, at least one of the subframe and the 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.

[0229] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station schedules each user terminal to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) in TTI units. Note that the definition of TTI is not limited to this.

[0230] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0231] In addition, when one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling, and the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0232] A TTI having a time length of 1 ms may be referred to as a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be referred to as a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0233] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and equal to or greater than 1 ms.

[0234] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0235] The time domain of an RB may include one or more symbols and may have a length of one slot, one minislot, one subframe, or one TTI, each of which may consist of one or more resource blocks.

[0236] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0237] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0238] A Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a common reference point of the carrier. PRBs may be defined in a given BWP and numbered within that BWP.

[0239] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0240] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0241] The above-described structures of the radio frame, subframe, slot, minislot, and symbol are merely examples. For example, the number of subframes included in a radio frame, the number of slots per subframe or radio 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, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other configurations may be changed in various ways.

[0242] The terms "connected," "coupled," or any variation thereof, refer to 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" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0243] The reference signal may also be abbreviated as Reference Signal (RS) and may be called a pilot depending on the applicable standard.

[0244] As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0245] The "means" in the configuration of each of the above devices may be replaced with "part," "circuit," "device," etc.

[0246] As used in this disclosure, any reference to an element using a designation such as "first," "second," etc. does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed therein or that the first element must precede the second element in some way.

[0247] When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0248] In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are in the plural form.

[0249] As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching in a table, database, or other data structure), ascertaining, and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like. Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0250] In the present 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 "coupled" may also be interpreted in the same way as "different."

[0251] 14 shows an example of the configuration of a vehicle 2001. As shown in Fig. 14, the 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.

[0252] The drive unit 2002 is composed of, for example, an engine, a motor, or a hybrid of an engine and a motor. 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 operated by the user. The electronic control unit 2010 is composed of a microprocessor 2031, memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2027 provided 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).

[0253] The signals from the various sensors 2021 to 2028 include a current signal from a current sensor 2021 that senses the current of the motor, a rotation speed signal of the front and rear wheels obtained by a rotation speed sensor 2022, an air pressure signal of the front and rear wheels obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.

[0254] The information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing various types of information such as driving information, traffic information, and entertainment information, and one or more ECUs for controlling these devices. The information service unit 2012 uses information obtained from external devices via the communication module 2013, etc., to provide various types of multimedia information and multimedia services to the occupants of the vehicle 1.

[0255] The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driver's driving burden, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS, etc.), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. The driving assistance system unit 2030 also transmits and receives various information via the communication module 2013 to realize driving assistance functions or autonomous driving functions.

[0256] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 1 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 to and from a driving 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, a microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 2028, which are provided in the vehicle 2001.

[0257] 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 an external device. For example, it transmits and receives various information to and from the external device 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, a mobile station, or the like.

[0258] The communication module 2013 transmits, via wireless communication to an external device, a current signal from the current sensor that is input to the electronic control unit 2010. The communication module 2013 also transmits, via wireless communication to an external device, the rotation speed signals of the front and rear wheels acquired by a rotation speed sensor 2022, the air pressure signals of the front and rear wheels acquired by an air pressure sensor 2023, the vehicle speed signal acquired by a vehicle speed sensor 2024, the acceleration signal acquired by an acceleration sensor 2025, the accelerator pedal depression amount signal acquired by an accelerator pedal sensor 2029, the brake pedal depression amount signal acquired by a brake pedal sensor 2026, the shift lever operation signal acquired by a shift lever sensor 2027, and the detection signals for detecting obstacles, vehicles, pedestrians, etc. acquired by an object detection sensor 2028, all of which are input to the electronic control unit 2010.

[0259] The communication module 2013 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from external devices and displays it on an information service unit 2012 provided in the vehicle. The communication module 2013 also stores the various information received from the external devices in a memory 2032 that can be used by the microprocessor 2031. Based on the information stored in the 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, axle 2009, sensors 2021 to 2028, and the like provided in the vehicle 2001.

[0260] (Additional Note) The above disclosure may be expressed as follows.

[0261] A first feature is a terminal including: a communication unit that transmits and receives radio signals according to a subband full-duplex communication method in which uplink subbands and downlink subbands are allocated non-overlapping in the frequency direction within a specified time based on time division duplex; a receiving unit that receives a message indicating two or more setting patterns of the uplink and downlink according to the time division duplex; and a control unit that assumes that a period of a time position pattern of the uplink subbands and the downlink subbands to which the subband full-duplex communication method is applied is determined by a specific natural number value and a repetition period for the two or more setting patterns.

[0262] A second feature is the terminal based on the first feature, wherein the control unit assumes that a period of the time position pattern is a value obtained by multiplying the value of the specific natural number by the repetition period.

[0263] A third feature is a terminal in the first or second feature, in which, as a time-direction period according to the subband full-duplex communication method, each of the two or more setting patterns is set or not set in the period of the time position pattern.

[0264] A fourth feature is a terminal in which, in at least one of the first to third features, a time-direction period according to the subband full-duplex communication method is set for one of the two or more setting patterns in a cycle of the time position pattern, and is applied to one or more setting patterns included in the two or more setting patterns.

[0265] A fifth feature is a terminal in which, in at least one of the first to fourth features, when the period of the time position pattern includes the repetition period, a time direction period according to the subband full-duplex communication method is applied to one of the two or more setting patterns, or is applied to a plurality of the two or more setting patterns.

[0266] A sixth feature is a radio base station including: a communication unit that transmits and receives radio signals in accordance with a subband full-duplex communication scheme in which uplink subbands or downlink subbands are allocated non-overlapping in a frequency direction within a specified time period based on time division duplex; and a transmission unit that transmits a message indicating two or more setting patterns of uplink and downlink in accordance with the time division duplex and a specific natural number value, wherein a period of a time position pattern of the uplink subbands and the downlink subbands to which the subband full-duplex communication scheme is applied is determined by the specific natural number value and a repetition period for the two or more setting patterns.

[0267] 10 Wireless communication system 20 NG-RAN 100 gNB 200 UE 210 Wireless signal transceiver 220 Amplifier 230 Modulation / demodulation unit 240 Control signal / reference signal processing unit 250 Encoding / decoding unit 260 Data transceiver 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 Driving assistance system section 2031 Microprocessor 2032 Memory (ROM, RAM) 2033 Communication port

Claims

1. A terminal comprising: a communication unit that transmits and receives radio signals according to a subband full-duplex communication method in which uplink subbands and downlink subbands are assigned non-overlapping in the frequency direction within a specified time based on time division duplex; a receiving unit that receives a message indicating two or more setting patterns of the uplink and downlink according to the time division duplex; and a control unit that assumes that the period of the time position pattern of the uplink subbands and the downlink subbands to which the subband full-duplex communication method is applied is determined by the value of a specific natural number and a repetition period for the two or more setting patterns.

2. The terminal according to claim 1, wherein the control unit assumes that the period of the time position pattern is a value obtained by multiplying the value of the specific natural number by the repetition period.

3. A terminal according to claim 1, wherein the time-direction period according to the subband full-duplex communication method is set or not set separately for each of the two or more setting patterns in the cycle of the time position pattern.

4. The terminal according to claim 1, wherein one time-direction period according to the subband full-duplex communication method is set for each of the two or more setting patterns in the cycle of the time position pattern, and is applied to one or more setting patterns included in the two or more setting patterns.

5. The terminal according to claim 1, wherein, when the period of the time position pattern includes two or more of the repetition periods, the time direction period according to the subband full-duplex communication method is applied to one of the repetition periods, or to two or more of the repetition periods.

6. A radio base station comprising: a communication unit that transmits and receives radio signals according to a subband full-duplex communication method in which uplink subbands or downlink subbands are assigned non-overlapping in the frequency direction within a specified time based on time division duplex; and a transmission unit that transmits a message indicating two or more setting patterns of the uplink and downlink according to the time division duplex and a specific natural number value, wherein a period of the time position pattern of the uplink subbands and the downlink subbands to which the subband full-duplex communication method is applied is determined by the specific natural number value and a repetition period for the two or more setting patterns.

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