Base station and wireless communication method

Abstract

A base station is provided with: a transmission unit that notifies a first duplexing scheme in which transmission and reception are performed using resources repeating in a time domain and a frequency domain, and notifies the position of a sub-band in a second duplexing scheme in which transmission and reception are performed for each sub-band constituting a band domain of a time division duplexing scheme; and a control unit that instructs the transmission / reception direction of each terminal in the resource or the sub-band via a terminal-specific parameter.

Description

Technical Field

[0001] This disclosure relates to a base station operating in full-duplex mode and a wireless communication method. Background Technology

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

[0003] In Release 18, the following duplexing mode was discussed: the base station (hereinafter, also referred to as gNodeB (gNB)) can simultaneously use downlink (DL) and uplink (UL) by identifying the band domain of time division duplexing (TDD) as multiple subbands (Non-Patent Document 1). Such a duplexing mode is called SubBand non-overlapping Full Duplex (SBFD). Furthermore, even if the gNB is identified as SBFD, the terminal (hereinafter, also referred to as user equipment (UE)) is identified as either DL or UL. That is, even if the gNB operates according to SBFD, the UE operates according to Half Duplex (HD).

[0004] In gNB and UE, further extensions of duplexing methods are being investigated. Specifically, full-duplex (FD) methods using resources that are repeated in both the time and frequency domains (time / frequency resources) are being investigated (Non-Patent Document 2).

[0005] Existing technical documents

[0006] Non-patent literature

[0007] Non-patent literature 1: “Study on Evolution of NR Duplex Operation”, RP-213591, 3GPP TSG RAN#94-e, 3GPP, Dec. 6-17, 2021

[0008] Non-patent literature 2: “Evolution of NR duplex operation”, RWS-230249, 3GPP TSGRAN Rel-19 workshop, NTT DOCOMO, INC., June 15-16, 2023 Summary of the Invention

[0009] Previously, there was no mechanism to notify the UE of the duplex mode in which the gNB operates. However, when the gNB operates in FD (and HD), and furthermore, when FD (and HD) is combined with the aforementioned SBFD, self-interference is expected to become larger or more complex than before. Therefore, it is considered that the UE should also be able to identify when the gNB operates in FD.

[0010] Here, as a notification to the UE side that the gNB is performing an action for FD, in order to implement FD, it is necessary to indicate the direction (DL / UL) of the resources observed from the UE. In order to indicate the direction (DL / UL) of the resources observed from the UE, cell-specific signaling is considered.

[0011] However, if cell-specific signaling is used, it becomes a matter of uniformly instructing UEs within the cell. Therefore, it may not be possible to fully utilize the flexible resource allocation based on FD.

[0012] Therefore, this disclosure was made in view of the following situation, and its purpose is to provide a base station and wireless communication method that enables flexible resource allocation based on FD when notifying a terminal to perform an action in FD.

[0013] One disclosed embodiment is a base station comprising: a transmitting unit (wireless signal transceiver 110) that notifies operation in a first duplex mode using resources that are repeated in the time and frequency domains for transmission and reception, and notifies the position of the sub-band in a second duplex mode that transmits or receives according to each sub-band of the band domain constituting the time-division duplex mode; and a control unit (control unit 170) that instructs the transmission and reception direction of each terminal in the resources or the sub-band via parameters inherent to the terminal.

[0014] One disclosed approach is a wireless communication method in which a first duplex mode is operated using resources that are repeated in the time and frequency domains, and a second duplex mode is operated using the position of the sub-bands in which transmission or reception is performed according to each sub-band of the band domain constituting the time-division duplex mode, via parameters inherent to the terminals, indicating the transmission and reception direction of the resources or the terminals in the sub-bands. Attached Figure Description

[0015] Figure 1 This is a general structural diagram of a wireless communication system.

[0016] Figure 2 This is a diagram showing the frequency ranges used in wireless communication systems.

[0017] Figure 3 This is a diagram illustrating an example of the structure of wireless frames, subframes, time slots, and symbols used in a wireless communication system.

[0018] Figure 4 This is a functional block diagram of a base station.

[0019] Figure 5 This is a functional block diagram of the terminal.

[0020] Figure 6 This diagram illustrates the identification of base stations operating in FD mode and terminals operating in HD mode.

[0021] Figure 7 This diagram illustrates an example of wireless communication between a base station operating in FD mode and a terminal operating in HD mode.

[0022] Figure 8 This is a diagram illustrating the identification of base stations operating using SBFD.

[0023] Figure 9 This diagram illustrates an example of wireless communication between a base station operating in FD and SBFD mode and a terminal operating in HD mode.

[0024] Figure 10 This is a diagram illustrating an example of the hardware structure of a base station and a terminal.

[0025] Figure 11 This is a diagram showing an example of the structure of a vehicle. Detailed Implementation

[0026] The embodiments are described below based on the accompanying drawings. Furthermore, the same or similar reference numerals are used to denote the same function or structure, and their descriptions are omitted where appropriate.

[0027] (1) Structure of wireless communication system

[0028] Figure 1 The wireless communication system 10 shown is a wireless communication system that follows a method known as 5G. On the other hand, the wireless communication system 10 can also be a wireless communication system that follows a method known as Beyond 5G, 5G Evolution, or 6G.

[0029] The wireless communication system 10 can support massive multiple-input multiple-output (MIMO) systems that generate more directional beams by controlling wireless signals transmitted from multiple antenna elements, carrier aggregation (CA) systems that use multiple component carriers (CC), and dual connectivity (DC) systems that can communicate simultaneously with two base stations.

[0030] like Figure 1 As shown, the wireless communication system 10 includes a Next Generation Radio Access Network (NG-RAN) 20, a base station (hereinafter also referred to as a gNodeB (gNB)) 100 connected to the NG-RAN 20, and a terminal (hereinafter also referred to as a user equipment (UE)) 200 that communicates wirelessly with the gNB 100. The NG-RAN 20 is connected to a core network (CN) not shown. The NG-RAN 20 and CN can also be simply referred to as a "network". Additionally, the gNB 100 can also be interpreted as being included in the network. Furthermore, the specific structure of the wireless communication system 10, such as the number of gNBs 100 and UEs 200, is not limited to... Figure 1 The example shown.

[0031] The wireless communication system 10 supports various duplex modes. First, it supports Time Division Duplex (TDD) and Frequency Division Duplex (FDD). These duplex modes can also be referred to as half-duplex (HD). Additionally, the system supports the following duplex mode: by identifying the band domain of Time Division Duplex (TDD) as multiple sub-bands, it can simultaneously use the downlink (DL) and uplink (UL). This duplex mode can also be referred to as SBFD.

[0032] Furthermore, the wireless communication system 10 supports full-duplex (FD) mode for transmitting and receiving using resources that are repeated in both the time and frequency domains. FD can be interpreted as implementing duplexing in the frequency domain based on time division duplexing (TDD), or as implementing duplexing in the time domain based on frequency division duplexing (FDD).

[0033] Furthermore, when SBFD is applied in the wireless communication system 10, even if gNB 100 identifies itself as SBFD, UE 200 will identify itself as DL or UL. That is, even if gNB 100 operates according to SBFD, UE 200 will operate according to HD. Similarly, when FD is applied in the wireless communication system 10, even if gNB 100 identifies itself as FD, UE 200 will identify itself as DL or UL. That is, even if gNB 100 operates according to FD, UE 200 will operate according to HD.

[0034] Hereinafter, symbols / time slots using FD as the duplex mode will sometimes be referred to as FD symbols / time slots. Additionally, symbols / time slots using SBFD will sometimes be referred to as SBFD symbols / time slots.

[0035] "Applying FD" can also be interpreted as applying FD in at least a portion of the scheduling. That is, even when applying FD, FD symbols / slots, the aforementioned SBFD symbols / slots, and HD symbols / slots can coexist. Similarly, "Applying SBFD" can also be interpreted as applying SBFD in at least a portion of the scheduling. That is, even when applying SBFD, SBFD symbols / slots, the aforementioned FD symbols / slots, and HD symbols / slots can coexist.

[0036] In addition, the wireless communication system 10 can support multiple frequency ranges (FRs). That is, such as Figure 2 As shown, the following FRs can be supported.

[0037] FR1: 410MHz~7.125GHz

[0038] FR2-1: 24.25GHz~52.6GHz

[0039] FR2-2: Over 52.6GHz to 71GHz

[0040] In FR1, a subcarrier spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5–100 MHz can be used. In FR2-1, an SCS of 60 or 120 kHz (or including 240 kHz) and a BW of 50–400 MHz can be used.

[0041] In FR2-2, to avoid increasing phase noise, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) or Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with a larger SCS can be applied.

[0042] In addition, such as Figure 3 As shown, one time slot in the wireless communication system 10 consists of 14 symbols. While maintaining this structure, a larger (wider) SCS results in a shorter symbol period (and time slot period). Furthermore, the SCS is not limited to... Figure 3 The frequency shown can be, for example, 480kHz, 960kHz, etc.

[0043] Furthermore, the number of symbols constituting one time slot does not necessarily have to be 14 symbols; for example, it could be 28 or 56 symbols. Also, the number of time slots in each subframe can vary depending on the SCS.

[0044] (2) Functional block structure of wireless communication system

[0045] (2.1) Functional block structure of base station

[0046] like Figure 4 As shown, the gNB 100 includes a wireless signal transceiver unit 110, an amplifier unit 120, a modem unit 130, and a control signal transceiver unit 140. The reference signal processing unit 140, the encoding / decoding unit 150, the data transceiver unit 160, and the control unit 170 are included.

[0047] The radio transceiver unit 110 transmits and receives radio signals with the UE 200. The radio transceiver unit 110 may also be configured as a transmitting unit that sends radio signals to the UE 200 and a receiving unit that receives radio signals from the UE 200. Transmission may also be replaced by setting, indicating, or notifying. Similarly, reception may be replaced by reporting or notifying. Furthermore, setting may be implemented through setting information (information element (IE)) at the Radio Resource Control (RRC) layer, and indicating may be implemented through control elements (CE) and downlink control information (DCI) at the Media Access Control (MAC) layer.

[0048] The wireless transceiver unit 110 of the embodiment can notify the gNB 100 to operate in full-duplex mode (hereinafter also referred to as FD or first-duplex mode) using resources that are repeated in the time domain and frequency domain for transmission and reception.

[0049] In this specification, FD can be interpreted as a further implementation of duplexing in the frequency domain based on Time Division Duplex (TDD), or it can be interpreted as a further implementation of duplexing in the time domain based on Frequency Division Duplex (FDD). Therefore, FDD and TDD in this specification are not interpreted as FD, but as Half-Duplex (HD). Furthermore, HD exemplified in the action examples is set as TDD.

[0050] FD can also be achieved by reducing self-interference. For example, FD can be achieved by having the gNB 100 separately broadcast high-straightness beams such as terahertz waves to each UE 200. Alternatively, FD can be achieved by spatially separating the transmitter and receiver in the gNB 100. In other words, FD can also be achieved by performing wireless communication on a per-space basis. On the other hand, FD can also be achieved without reducing self-interference. For example, FD can be achieved by having the gNB 100 monitor the scheduling of other gNB 100s and canceling all DL signals based on other gNB 100s. Thus, the gNB 100 can extract (decode) the UL signal from the presence of a mixture of DL and UL signals.

[0051] The wireless transceiver unit 110 of the embodiment can notify the gNB 100 to operate in SBFD (hereinafter also referred to as the second duplex mode). SBFD is a duplex mode in which DL and UL can be used simultaneously by identifying the TDD band domain as multiple sub-bands. That is, SBFD is a duplex mode in which transmission or reception is performed according to each sub-band constituting the TDD band domain. Furthermore, SBFD can also be described as a duplex mode that defines multiple sub-bands within the TDD band domain, or as a duplex mode in which UL and DL are non-repetitively allocated in the frequency direction within a unit time (e.g., symbol / time slot) of TDD.

[0052] The wireless signal transceiver unit 110 in the embodiment can notify the location of the sub-band in the SBFD.

[0053] The amplification unit 120 includes a power amplifier (PA) and a low-noise amplifier (LNA). The amplification unit 120 amplifies the wireless signal output from the wireless signal transceiver unit 110. Additionally, the amplification unit 120 amplifies the wireless signal output from the modem unit 130.

[0054] The modem 130 performs data modulation / demodulation, transmit power setting, and resource block allocation for each predetermined communication target (UE 200 or other UE). CP-OFDM / DFT-S-OFDM can also be applied in the modem 130. Furthermore, DFT-S-OFDM can be used not only for the uplink (UL) but also for the downlink (DL).

[0055] control signals The reference signal processing unit 140 performs processing of control signals, such as Radio Resource Control (RRC) signaling, that are transmitted and received with the UE 200.

[0056] control signals The reference signal processing unit 140 performs processing on reference signals transmitted and received with the UE 200, such as demodulation reference signal (DMRS), phase tracking reference signal (PTRS), channel state information-reference signal (CSI-RS), sounding reference signal (SRS), and positioning reference signal (PRS).

[0057] In addition, the channels include control channels and data channels. Control channels include the Physical Uplink Control Channel (PUCCH), Physical Downlink Control Channel (PDCCH), Physical Random Access Channel (PRACH), and Physical Broadcast Channel (PBCH). Data channels include the Physical Uplink Shared Channel (PUSCH) and Physical Downlink Shared Channel (PDSCH).

[0058] The encoding / decoding unit 150 performs segmentation / linking and encoding / decoding of data contained in the wireless signal for each predetermined communication target (UE 200 or other UE).

[0059] Specifically, the encoder / decoder 150 decodes the data output from the modem 130 and concatenates the decoded data. Additionally, the encoder / decoder 150 divides the data output from the data transceiver 160 into predetermined sizes and encodes the divided data.

[0060] The data transceiver unit 160 performs tasks such as assembling and decomposing Protocol Data Units (PDUs) and Service Data Units (SDUs) that constitute data between layers. These layers include the Media Access Control (MAC) layer, the Radio Link Control (RLC) layer, and the Packet Data Convergence Protocol (PDCP) layer. Furthermore, the data transceiver unit 160 performs error correction and retransmission control based on Hybrid Automatic Repeat Request (HARQ).

[0061] The control unit 170 controls gNb 100. For example, the control unit 170 controls the transmission and reception of wireless signals based on the wireless signal transceiver unit 110, amplification based on the amplification unit 120, data modulation / demodulation based on the modulation / demodulation unit 130, and control signals. The reference signal processing unit 140 performs signal processing, the encoding / decoding unit 150 performs encoding / decoding, and the data unit 160 performs data unit assembly / disassembly. Additionally, the control unit 170 performs scheduling for the UE 200.

[0062] The control unit 170 of the embodiment can instruct the transmission and reception direction of each UE 200 in the resources (hereinafter also referred to as FD resources) that are repeated in the time domain and frequency domain, via parameters inherent to the terminal.

[0063] The control unit 170 of the implementation can indicate the transmit / receive direction of each UE 200 not only in the FD resources, but also in the subband of the SBFD mentioned above, through parameters inherent to the terminal.

[0064] Furthermore, the transmit / receive direction in this specification is not limited to UL / DL, but can also be interpreted as including Flexible (F). Additionally, in the case of F, "direction" can be replaced with "status". Indications can be implemented through semi-static signaling such as System Information Blocks (SIBs) broadcast information and RRC settings, or through dynamic signaling such as DCI and MAC CE.

[0065] Terminal-specific parameters are parameters set or indicated for each UE 200. Terminal-specific parameters can also be replaced by terminal-specific signaling, terminal-specific indicators, terminal-specific configuration information, etc.

[0066] Terminal-specific parameters may include, for example, a terminal-specific timeslot format indicator (hereinafter also referred to as US-SFI). Similar to conventional SFIs, the US-SFI indicates the transmission and reception direction of the symbols constituting the timeslot, i.e., the transmission and reception direction of the symbols as observed from the UE 200. The US-SFI may also be included in the terminal-specific DCI.

[0067] The control unit 170 can also indicate the location of FD resources in the time and frequency domains via terminal-specific parameters. In this case, the terminal-specific parameters can be included in the RRC IE or the location of FD resources can be indicated semi-statically. Specifically, it can be derived by developing conventional TDD-Config-Common and / or TDD-Config-Dedicated as terminal-specific parameters, which can also be referred to as FD-Config-Common and / or FD-Config-Dedicated for convenience. Alternatively, the terminal-specific parameters can be included in the DCI or MAC CE, or the location of FD resources can be indicated dynamically. For convenience, the terminal-specific parameters that dynamically indicate the location of FD resources can also be referred to as Full Duplex Indicator / Indication (FDI).

[0068] Furthermore, when indicated as an implication, the symbol / slot for which FD is applied can be a symbol / slot that satisfies at least one of the conditions shown below.

[0069] Condition 1: Symbols / slots configured as at least one of DL / F / UL via TDD-Config-Common (and / or TDD-Config-Dedicated)

[0070] Condition 2: Symbols / slots not configured as at least one of DL / F / UL via TDD-Config-Common (and / or TDD-Config-Dedicated)

[0071] Condition 3: The symbol / slot is set to at least one of DL / F / UL via the Slot Format Indicator (SFI) (DCI format 2_0).

[0072] Condition 4: Symbols / slots not configured as at least one of DL / F / UL via SFI (DCI format 2_0)

[0073] Condition 5: Symbols / slots configured for receiving synchronization signal blocks (SSBs)

[0074] Condition 6: Symbols / slots not configured for SSB reception

[0075] Condition 7: Symbols / slots configured for type-0 PDCCH monitoring (or CORESET#0 symbol)

[0076] Condition 8: Symbols / slots not configured for type-0 PDCCH monitoring (or CORESET#0 symbol)

[0077] Condition 9: Symbols / slots included in a valid PRACH occasion

[0078] Condition 10: Symbols / slots not included in valid PRACH occasions

[0079] (2.2) Functional block structure of the terminal

[0080] like Figure 5 As shown, the UE 200 includes a wireless signal transceiver unit 210 and a control unit 220.

[0081] The wireless transceiver unit 210 transmits and receives wireless signals with the gNB 100. The wireless transceiver unit 210 can also be configured as a transmitting unit that sends wireless signals to the gNB 100 and a receiving unit that receives wireless signals from the gNB 100. Transmission can also be replaced by reporting, notification, etc. Furthermore, reception can be replaced by setting, indicating, notifying, etc. In addition, setting can be achieved through setting information (information element (IE)) at the Radio Resource Control (RRC) layer, and indicating can be achieved through control elements (CE) and downlink control information (DCI) at the Media Access Control (MAC) layer.

[0082] The wireless transceiver unit 210 of the embodiment can transmit UE capability information related to the FD operation or SBFD operation of the gNB 100 described above. Details of the UE capability information will be described in detail in the action example section.

[0083] The wireless transceiver unit 210 of the embodiment can be notified to operate in FD mode by gNB 100, and can also be instructed in the transmission / reception direction (DL / UL) in FD resources.

[0084] The wireless transceiver unit 210 of the embodiment can also be notified of the location of FD resources in the time and frequency directions. Furthermore, the wireless transceiver unit 210 of the embodiment can also be notified of the location of sub-bands in the SBFD.

[0085] The control unit 220 controls the UE 200. For example, the control unit 220 controls the transmission and reception of wireless signals performed by the wireless signal transceiver unit 210.

[0086] The control unit 220 in the embodiment can cause the wireless signal transceiver unit 210 to perform transmission and reception according to the transmission / reception direction (DL / UL) instruction in the subband of the FD resource or SBFD.

[0087] (3) Operation of wireless communication system

[0088] (3.1) Topic

[0089] (3.1.1) Topic 1

[0090] There has been no research on whether to introduce new signaling to enable UE support for FD actions when the gNB performs them. Furthermore, there has been no research on whether to extend UE actions while using existing signaling.

[0091] (3.1.2) Topic 2

[0092] When gNB performs actions with FD, the combination with SBFD has not been studied. For example, it is believed that the self-interference effect is greater when performing actions with FD compared to when performing actions with SBFD, but this issue has not been investigated.

[0093] (3.2) Example of an action

[0094] (3.2.0) Prerequisite

[0095] Reference Figure 6 The premise for the action example is explained. For example... Figure 6 As shown, the gNB 100 in the action example can perform actions using FD. Performing actions using FD can mean performing actions only using FD, or it can be as follows: Figure 6 The diagram shows an action performed using both FD and HD. Furthermore, performing an action with FD can also mean performing an action using both FD and SBFD, or it can mean performing an action using FD, SBFD, and HD (see [reference]). Figure 9 Furthermore, FD is not applied as part of the available bandwidth (BW), but rather to the entire BW. On the other hand, UE 200 only operates in HD.

[0096] Figure 6 An example is shown where the gNB 100 operates in FD mode for two out of four consecutive symbol / time slots. During the two symbol / time slots operating in FD mode, the gNB 100 can independently set or indicate DL / UL in UE#1 and UE#2. Furthermore, Figure 6 The example shown illustrates that in two symbols / slots operating with FD on gNB 100, DL / UL can be identical in UE#1 and UE#2. Furthermore, in Figure 6 as well as Figure 7 In this context, symbols / slots with the prefix "D" are DL symbols / slots, and symbols / slots with the prefix "U" are UL symbols / slots.

[0097] (3.2.1) Action Example 1

[0098] Reference Figure 7 Here is an explanation of Action Example 1. In Action Example 1, gNB 100 can perform an action using FD (Fast-Delayed Action), and it can also perform an action using both FD and HD (High-Definition Action). Furthermore, as explained in the following options, the FD action of gNB 100 can be either transparent or non-transparent to UE 200. That is, the FD action of gNB 100 may or may not be notified to UE 200. In addition, Figure 7 The following scenario is shown: Regarding Flexible (F) symbols / slots (symbols / slots with "F" appended in the figure), gNB 100 is considered as FD symbols / slots, and UE 200 (UE#1 and UE#2 in the figure) is considered as HD symbols / slots (see option 3).

[0099] (3.2.1.1) Option 1

[0100] The FD action of gNB 100 is transparent to UE 200. That is, UE 200 is unaware that gNB 100 is performing an FD action.

[0101] When the gNB 100 operates with this transparent FD, it is not possible to process the UE 200's actions (e.g., DL reception and / or UL transmission) separately in the FD symbols and HD symbols. Such separate processing is considered beneficial, for example, in cases where the gNB 100 may separate transmission and reception for FD operations.

[0102] (3.2.1.2) Option 2

[0103] The FD (Flight Deployment) operation of gNB 100 is non-transparent to UE 200. That is, UE 200 is aware that gNB 100 is performing an FD operation. However, UE 200 is not aware of the time and / or frequency domain resources involved in the FD operation.

[0104] The FD action of gNB 100 can be notified in advance via RRC / MAC CE / DCI, but it can also be notified through additional / new UE-specific signals (the terminal-specific parameters described above) as described below. That is, UE 200 can recognize gNB 100 as performing FD action by receiving the additional / new UE-specific signal, or by being indicated by the additional / new UE-specific signal to the actual direction (DL / UL) observed from UE 200. In addition, if UE 200 is indicated by the actual direction (DL / UL) observed from UE 200 via the conventional SFI, it can also recognize gNB 100 as performing HD action.

[0105] To enable gNB 100 to operate in FD (and HD) mode, the conventional NR TDD configuration information (TDD-Config-Common and / or TDD-Config-Dedicated) can be used (and dynamic SFI based on DCI format 2_0 can also be used). Alternatively, additional / new UE-specific signals can be used. When gNB 100 operates in FD mode, SFI is not very flexible. This is because DCI format 2_0 is a group-common indication, but the actual direction (DL / UL) of the FD symbols can differ for each UE 200. Therefore, UE-specific signals indicating the actual direction (DL / UL) observed from UE 200 are beneficial.

[0106] In summary, in Option 2, when gNB 100 operates in FD mode, it is also possible to newly support UE-specific signals that dynamically indicate the actual direction (DL / UL) to UE 200. UE-specific signals may also be referred to as UE-specific SFI (US-SFI).

[0107] US-SFI can be monitored via the UE's inherent DCI or MAC CE. When monitored via the UE's inherent DCI, the UE's inherent DCI can be based on an existing DCI format or a new DCI format, and can also be accompanied by a Cyclic Redundancy Check (CRC) scrambled using an existing Radio Network Temporary Identifier (RNTI) (e.g., Cell-RNTI (C-RNTI)) or a new RNTI. Furthermore, whether and when to monitor US-SFI can be configured via RRC.

[0108] The content / details of the US-SFI instruction can be similar to the content / details of the group-common SFI via DCI format 2_0. For example, US-SFI can indicate direction or state (D / U ( / F)) for each symbol (or for each symbol set to F).

[0109] UE 200 does not expect US-SFI to indicate U ( / F) for semi-static DL symbols, nor does it expect US-SFI to indicate D ( / F) for semi-static UL symbols.

[0110] • When the semi-static F symbol is indicated as D / U via US-SFI, the actual direction of the symbol is DL / UL. That is, UE 200 only performs DL reception or UL transmission in this symbol.

[0111] • In cases where a semi-static F symbol is indicated as F via US-SFI (where such indication is supported or authorized). • Opt-a: This symbol is considered Not available for the configured DL / UL. UE 200 does not perform the configured DL reception or UL transmission in this symbol. UE 200 can perform dynamically scheduled DL reception and dynamically scheduled UL transmission in this symbol.

[0112] • Opt-b: This symbol is considered available for DL / UL. In this symbol, UE 200 can perform set DL reception, dynamically scheduled DL reception, set UL transmission, and dynamically scheduled UL transmission.

[0113] If the system is configured to monitor US-SFI based on a predetermined period, and if UE 200 does not detect DCI within the predetermined period, • Alt-a: UE 200 is considered a semi-static F symbol that can be used in either UL transmission or DL ​​reception.

[0114] • Alt-b: UE 200 considers the semi-static F symbol to be unavailable in both UL transmission and DL reception.

[0115] • Alt-c: When the UE 200 is configured to monitor previous SFIs, it follows the previous SFI instructions.

[0116] Regarding the interaction between the US-SFI instruction and previous SFI instructions, • Alt 1: When UE 200 is configured to monitor US-SFI, it does not expect to be configured to simultaneously monitor group-common SFI via DCI format 2_0.

[0117] • Alt 2: When UE 200 is configured to monitor US-SFI, it can be configured to simultaneously monitor group-common SFI via DCI format 2_0. In this case, • Alt 2-1: UE 200 always follows US-SFI and ignores group-commonSFI via DCI format 2_0.

[0118] • Alt 2-2: US-SFI can override symbols / slots indicated as F by the group-common SFI via DCI format 2_0.

[0119] • Regarding symbols / slots indicated as F by the group-common SFI via DCI format 2_0, if indicated as D ( / U) by the US-SFI, the UE 200 is able to perform DL reception (or UL transmission) in that symbol / slot.

[0120] UE 200 does not expect symbols / time slots indicated as U by the group-common SFI via DCI format 2_0 to be indicated as D by the US-SFI. Furthermore, UE 200 does not expect symbols / time slots indicated as D by the group-common SFI via DCI format 2_0 to be indicated as U by the US-SFI. Additionally, UE 200 does not expect symbols / time slots indicated as D or U by the group-common SFI via DCI format 2_0 to be indicated as F by the US-SFI.

[0121] (3.2.1.3) Option 3

[0122] The FD (Fast Moving) operation of gNB 100 is non-transparent to UE 200. That is, UE 200 is aware that gNB 100 is performing an FD operation. Furthermore, as... Figure 7 As shown, UE 200 is also aware of the time and / or frequency domain resources in the FD operation.

[0123] (3.2.1.3.1) Option 3-1

[0124] To enable the gNB 100 to operate in FD (as well as HD), the setting information of the previous NR TDD (TDD-Config-Common and / or TDD-Config-Dedicated) can be reused (and the dynamic SFI based on DCI format 2_0 can also be reused). Thereby, the operation of the UE 200 can also be extended. For example, when observed from the gNB 100, the FD symbol / slot can be indicated by being set as the F symbol / slot.

[0125] In Option 3-1, the FD operation of the gNB 100 is notified in advance via RRC / MAC CE / DCI, etc. Specifically, as described below, the notification replaces the F slot / symbol with the FD symbol / slot. That is, by being notified of this replacement of the F slot / symbol, the UE 200 can recognize that the gNB 100 is operating in FD. Alternatively, when the UE 200 reports via the UE capability report (UEcapability report) that it can replace the F slot / symbol, the replacement of the F slot / symbol can also be performed at all times. In this case, the UE 200 can also recognize that the gNB 100 is operating in FD.

[0126] When a new parameter "fullduplexmode" is set via RRC or SIB, the UE interpretation / operation based on the existing signaling can be extended as follows.

[0127] <Interpretation of semi-static TDD setting>

[0128] · The UE 200 regards the symbol / slot set to F as the FD symbol / slot. The UE 200 regards the symbol / slot set to D / U as the HD symbol / slot.

[0129] <Interpretation of dynamic SFI indication such as D / U>

[0130] · Alt 1: The UE 200 regards the symbol / slot indicated as D / U by the dynamic SFI as the HD D / U symbol / slot. In addition, the F symbol / slot of the semi-static FD can also be converted to the HD symbol / slot by the dynamic SFI indicating D / U. [[ID=二十]]

[0131] [[ID=二十一]]· Alt 2: The UE 200 regards the semi-static F symbol / slot indicated as D / U by the dynamic SFI as the FD symbol / slot. In this case, the actual direction of the FD symbol / slot for the UE 200 is the D / U indicated by the dynamic SFI. In addition, regarding the dynamic SFI that indicates D / U for the semi-static FD symbol / slot, the intention is to indicate the actual report of the FD symbol / slot instead of converting it to the HD symbol / slot. [[ID=二十二]]

[0132] <Explanation of such dynamic SFI indication>

[0133] ·Alt-a: The UE 200 regards the symbols / slots indicated as F by the dynamic SFI as FD symbols / slots. In this case, the actual direction of the FD symbols / slots for the UE 200 can also be further flexibly determined / scheduled.

[0134] ·Alt-b: The UE 200 regards the symbols / slots indicated as F by the dynamic SFI as HD F symbols / slots. In this case, the actual direction of the FD symbols / slots for the UE 200 can also be further flexibly determined / scheduled.

[0135] ·Variation: Potential extension of the actions of the UE 200 in Alt-a / Alt-b: The UE 200 can perform the set UL transmission or the set DL reception in the symbols / slots indicated as F by the dynamic SFI.

[0136] <UE actions for semi-static F symbols / slots when SFI is set but monitoring / detection is not performed / fails>

[0137] ·Opt-1: The same actions as before

[0138] ·Opt-2: The same actions as for semi-static F symbols / slots in the case where SFI is not set. For example, similar to the <Explanation of semi-static TDD setting> above, the UE 200 regards the symbols / slots set as F as FD symbols / slots and the symbols / slots set as D / U as HD symbols / slots.

[0139] <variation>

[0140] The maximum number of handover / transfer points from one FD symbol / time slot or HD symbol / time slot to the other can be X. X can be defined by the standard or determined by UE capability information.

[0141] (3.2.1.3.2) Option 3-2

[0142] Additional / new semi-static signaling can be imported. Cell-common and / or UE-specific RRC settings (e.g., FD-Config-Common and / or FD-Config-Dedicated) can be supported to indicate semi-static FD symbols / slots. This also extends the operation of UE 200. Furthermore, the UE-specific RRC settings can be interpreted as corresponding to the terminal-specific parameters mentioned above.

[0143] The notification of the FD action of gNB 100 in Option 3-2 can also be implemented in the same way as the notification of the FD action of gNB 100 in Option 2 above.

[0144] <Example 1>

[0145] The new cell common or UE-specific RRC settings can indicate FD or HD for symbols / slots during each TDD configuration mode. In this case, UE 200 needs to follow the previous TDD settings (TDD-Config-Common and / or TDD-Config-Dedicated) as well as the new FD settings.

[0146] • The parameters "FD-Config-Common and / or FD-Config-Dedicated" can indicate FD or HD for each symbol / slot, or only for symbols / slots that are set / indicated as F by the previous TDD settings / previous TDD signaling (previous TDD settings + dynamic SFI).

[0147] When the indication is for each symbol / slot, for symbols / slots set / indicated as D / U by previous TDD settings / previous TDD signaling, the parameter "FD-Config-Common and / or FD-Config-Dedicated" may be authorized / expected to be indicated as FD, or may not be authorized / expected to be indicated as FD. Furthermore, if a symbol / slot is set / indicated as D / U by previous TDD settings / previous TDD signaling, and is indicated as FD by the parameter "FD-Config-Common and / or FD-Config-Dedicated", UE 200 treats that symbol / slot as an FD symbol / slot, and treats the actual direction of the FD symbol / slot for UE 200 as D / U according to previous TDD signaling. Alternatively, in this case, UE 200 treats that symbol / slot as a D / U symbol / slot of HD.

[0148] • When a symbol / time slot is set / indicated as F by previous TDD settings / previous TDD signaling, and is indicated as FD by the parameters "FD-Config-Common and / or FD-Config-Dedicated", UE 200 regards the symbol / time slot as an FD symbol / time slot. The actual direction of the FD symbol / time slot for UE 200 is determined by other means, rules, and indications.

[0149] <Example 2>

[0150] The new (UE-inherent) RRC setting can indicate FD or HD, indicating the actual direction of the FD symbol / slot as observed from UE 200 (UE 200 may also not follow the previous TDD setting).

[0151] The parameters "FD-Config-Common and / or FD-Config-Dedicated" can indicate FD-D / FD-U ( / FD-F) or HD (HD-D / HD-U / HD-F) for each symbol / slot, or only for symbols / slots set / indicated as F (and / or D / U) by previous TDD signaling. Furthermore, FD-D / FD-U / FD-F refers to FD symbols / slots, meaning symbols / slots with an actual direction of D / U / F observed from the UE 200. Additionally, HD-D / HD-U / HD-F refers to D / U / F symbols / slots of HD.

[0152] • When the indication is for each symbol / slot, for symbols / slots that are configured by the previous TDD / the previous TDD signaling / indicated as D / U, the parameter "FD-Config-Common and / or FD-Config-Dedicated" can be authorized / expected to be indicated as FD-D / FD-U ( / FD-F) or HD (HD-D / HD-U / HD-F), or it can be not authorized / expected to be indicated as FD-D / FD-U ( / FD-F) or HD (HD-D / HD-U / HD-F). Furthermore, if a symbol / slot is set / indicated as D / U via conventional TDD settings / conventional TDD signaling, and is indicated as FD-D / FD-U ( / FD-F) via the parameters "FD-Config-Common and / or FD-Config-Dedicated", UE 200 treats the symbol / slot as an FD symbol / slot, and treats the actual direction of the FD symbol / slot for UE 200 as D / U ( / F) according to conventional TDD signaling. Alternatively, in this case, UE 200 treats the symbol / slot as a D / U ( / F) symbol / slot of HD.

[0153] (3.2.1.3.3) Option 3-3

[0154] Additional / new dynamic signaling can be used to implement FD (and HD), extending the actions of UE 200. Dynamic indication of FD symbols / slots can be supported using cell-common and / or UE-specific dynamic signaling (e.g., DCI or MAC CE). Furthermore, UE-specific dynamic signaling can also be interpreted to correspond to the aforementioned terminal-specific parameters.

[0155] The notification of the FD action of gNB 100 in option 3-3 can also be implemented in the same way as the notification of the FD action of gNB 100 in option 2 above.

[0156] <Example 1>

[0157] New cell-common or UE-specific dynamic indications (e.g., also known as FDI) can indicate FD or HD for symbols / slots. In this case, UE 200 needs to follow both the previous TDD settings and the new FD settings.

[0158] • FDI can indicate FD or HD for each symbol / slot, or only for semi-static FD symbols / slots. In addition, semi-static FD symbols / slots can be symbols / slots set / determined by the new RRC settings such as options 3-2, or symbols / slots set to F by the previous TDD settings.

[0159] •UE 200 can be expected to convert semi-static HD symbols / slots to dynamic FD symbols / slots via FDI, or it can not.

[0160] •UE 200 can be expected to convert semi-static FD symbols / slots to dynamic HD symbols / slots via FDI, or it can not.

[0161] Variation: UE 200 can be expected to be configured to monitor FDI and simultaneously monitor SFI via DCIformat 2_0, or it can be not expected to be. If expected, • Alt 1: Allows you to apply FDI to semi-static FD symbols / slots and SFI to semi-static HD symbols / slots.

[0162] • Alt 2: First, FDI is applied to determine the type of symbol / slot (FD symbol / slot or HD symbol / slot). Then, SFI is applied only to the determined HD symbol / slot.

[0163] • Alt 3: FDI is applied to determine the type of symbol / slot (FD symbol / slot or HD symbol / slot). For the determined FD symbol / slot, SFI is applied to determine the actual direction of that symbol / slot as observed from UE 200. For HD symbol / slots, SFI is applied in the same way as before.

[0164] <Example 2>

[0165] New cell-common or UE-specific dynamic indications (e.g., also known as FDI) can indicate FD or HD, indicating the actual direction of FD symbols / slots observed from UE 200 (UE 200 may also not follow the previous TDD settings).

[0166] • FDI can indicate FD-D / FD-U ( / FD-F) or HD (HD-D / HD-U / HD-F) for each symbol / slot, or only for semi-static FD symbols / slots. Furthermore, FD-D / FD-U / FD-F refers to FD symbols / slots, specifically symbols / slots with an actual direction of D / U / F observed from the UE 200. Additionally, HD-D / HD-U / HD-F refers to D / U / F symbols / slots of HD.

[0167] •UE 200 can be expected to convert semi-static HD symbols / slots to dynamic FD symbols / slots via FDI, or it can not.

[0168] •UE 200 can be expected to convert the semi-static HD D / U symbols / time slots into dynamic FD-D / FD-U ( / FD-F) symbols / time slots via FDI, or it can not.

[0169] •UE 200 can be expected to convert the semi-static HD F symbol / slot to dynamic FD-D / FD-U ( / FD-F) symbol / slot via FDI, or it can not.

[0170] •UE 200 can be expected to convert semi-static FD symbols / slots to dynamic HD symbols / slots via FDI, or it can not.

[0171] •UE 200 can be expected to convert semi-static FD-D / FD-U symbols / slots into dynamic HD D / U ( / F) symbols / slots via FDI, or it can not.

[0172] •UE 200 can be expected to convert semi-static FD-F symbols / slots into dynamic HD D / U ( / F) symbols / slots via FDI, or it can not.

[0173] Variation: UE 200 can be expected to be configured to monitor FDI and simultaneously monitor SFI via DCIformat 2_0, or it can be not expected to be. If expected, • Alt a: Allows you to apply FDI to semi-static FD symbols / slots and SFI to semi-static HD symbols / slots.

[0174] • Alt b: FDI is applied to determine the type of symbol / slot (FD symbol / slot or HD symbol / slot), and SFI is applied only to the determined HD symbol / slot.

[0175] (3.2.1.3.4) Changes in option 3

[0176] Option 3-2 and option 3-3 can be combined.

[0177] (3.2.1.4) Option 4

[0178] Regarding option 3, if the UE 200 is aware of the FD symbols / time slots and HD symbols / time slots, it is possible to extend the UE 200's transmission and reception in the FD symbols / time slots and / or HD symbols / time slots.

[0179] • Explain the motivation behind the transmit and receive operations of UE 200 in extended FD symbols / slots and / or HD symbols / slots.

[0180] • In the case of transparent FD (where the UE 200 is unaware of the FD action), the following problem exists: UE actions (e.g., DL reception and / or UL transmission) in FD symbols / slots and / or HD symbols / slots cannot be processed independently.

[0181] • Separately handling UE actions (e.g., DL reception and / or UL transmission) in FD symbols / time slots and / or HD symbols / time slots is beneficial in some cases. For example, if the possibility of separating transmit and receive for FD operations is investigated, the receive panel / antenna of the gNB100 can be different in FD symbols / time slots and HD symbols / time slots. For example, only half of the receive panel could be used for FD symbols / time slots.

[0182] • An explanation of the extensions to the transmit and receive operations of UE 200.

[0183] • Special handling for DL ​​reception or UL transmission in FD symbols / slots and / or HD symbols / slots. For example, using parameters specifically designed for PUCCH / PUSCH / SRS in FD symbols / slots and / or HD symbols / slots (e.g., parameters associated with the spatial / power domain).

[0184] Regarding DL / UL channels / signals that repeat multiple times, different numbers of repetitions can be supported in different types of symbols / slots, or they can be not supported (for example, the number of repetitions for FD symbols / slots can be different from the number of repetitions for HD symbols / slots).

[0185] Regarding periodic / semi-persistent DL / UL channels / signals, different periods of transmission / reception opportunities for DL / UL channels / signals may be supported in different types of symbols / slots, or they may not be supported (for example, the period of FD symbols / slots may be different from that of HD symbols / slots regarding the transmission / reception opportunity).

[0186] • It may or may not support the transmission / reception opportunities of DL / UL channels / signals mapped to different types of symbols / time slots.

[0187] • Variation: The maximum number of handover / transfer points from one FD symbol / time slot or HD symbol / time slot to the other within a predetermined period (e.g., 1 TDD period, 1 time slot period) can be X. X can be defined by the standard or determined by UE capability information.

[0188] • Variation: The protection period used for switching FD symbols / slots and HD symbols / slots can be defined by the standard, indicated by gNB 100, or determined based on UE capability information.

[0189] (3.2.2) Action Example 2

[0190] Reference Figure 8 and Figure 9 Example 2 of the action will be explained. In example 2 of the action, gNB 100 is able to perform an action by combining the FD (and HD) described in the action example with the SBFD described below.

[0191] Figure 8 This is a diagram illustrating an example of SBFD symbols / slots. SBFD symbols / slots can also be interpreted as symbols / slots set / indicated to have UL (and DL) subbands so that the gNB 100 operates with SBFD. That is, as... Figure 9 As shown, SBFD symbols / slots can also be interpreted as DL symbols / slots in TDD, and a portion of the band field of the DL symbol / slot is set / indicated as a symbol / slot of the UL subband.

[0192] like Figure 8 As shown, each subband constituting the SBFD symbol / slot is assigned either DL or UL. Hereinafter, subbands assigned DL will be referred to as DL subbands, and subbands assigned UL will be referred to as UL subbands. Furthermore, in Figure 8 as well as Figure 9 In this context, symbols / slots or subbands with the prefix "D" are DL symbols / slots or DL ​​subbands, and symbols / slots or subbands with the prefix "U" are UL symbols / slots or UL subbands.

[0193] (3.2.2.1) Option 1

[0194] The FD operation of gNB 100 and the subband position of SBFD are transparent to UE 200. That is, UE200 is neither aware that gNB 100 performs FD operation nor aware of the subband position of SBFD.

[0195] (3.2.2.2) Option 2

[0196] The FD operation of gNB 100 is transparent to UE 200. On the other hand, the subband position of SBFD is non-transparent to UE 200. That is, UE 200 is not aware that gNB 100 performs FD operation, but is aware of the subband position in SBFD symbols / slots.

[0197] (3.2.2.3) Option 3

[0198] The FD (Flight Deployment) operation of gNB 100 is non-transparent to UE 200. On the other hand, the time and / or frequency domain resources involved in the FD operation, as well as the subband location of the SBFD, are transparent to UE 200. That is, UE 200 is aware that gNB 100 performs an FD operation, but is unaware of the time and / or frequency domain resources involved. Furthermore, UE 200 is unaware of the subband location of the SBFD.

[0199] Therefore, in option 3, the action in option 2 of action example 1 can be used.

[0200] (3.2.2.4) Option 4

[0201] The FD operation and the subband location of SBFD of gNB 100 are non-transparent to UE 200. On the other hand, the time and / or frequency domain resources in the FD operation are transparent to UE 200. That is, UE 200 is aware that gNB 100 performs FD operation and the subband location of SBFD, but is not aware of the time and / or frequency domain resources in the FD operation.

[0202] Therefore, in Option 4, the signaling indicating the subband position of the SBFD can be performed based on the action in Option 2 of Action Example 1, as shown below. The actions of UE 200 can also be extended accordingly. Furthermore, the signaling indicating the subband position of the SBFD can also be specified in Release 19 and later. Additionally, the subband position of the SBFD can also be set via RRC signaling. In this case, the subband position can also be represented by start and end frequencies, center frequency, and frequency band, etc. Furthermore, the frequency of the subband can also be set by the granularity (unit) of subcarrier / resource block (RB) / resource block group (RBG) / (in the sense of multiple subbands constituting a broadband band) subband, etc. And, activation / deactivation can also be performed via MAC CE / DCI, etc.

[0203] (3.2.2.4.1) Option 4-1

[0204] You can use the previous NR TDD configuration information (TDD-Config-Common and / or TDD-Config-Dedicated) and dynamic SFI based on DCI format 2_0.

[0205] When observed from gNB 100, FD symbols / slots can be indicated by setting symbols / slots that are not SBFD symbols / slots (hereinafter also referred to as non-SBFD symbols / slots) as F symbols / slots, i.e., setting them as non-SBFD F symbols / slots. When observed from UE 200, SFI can indicate the actual direction (DL / UL) observed by UE 200 in the non-SBFD F symbols / slots (i.e., non-SBFD symbols / slots observed from gNB 100 that are FD symbols / slots). In this case, UE 200 can also operate as follows.

[0206] First, for non-SBFD symbols / slots, the action of option 2 in action example 1 can be used.

[0207] Next, for SBFD symbols / slots, the operation can also be performed as follows.

[0208] • When indicated by SFI as D ( / U), • Alt-a1: UE 200 can treat this symbol / slot as an SBFD symbol / slot with an actually used DL (or UL) subband. UE 200 can perform DL reception in the DL subband of this symbol / slot (or, UL transmission in the UL subband).

[0209] • Alt-a2: UE 200 can treat this symbol / slot as a non-SBFD DL (or UL) symbol / slot and use the DL BWP (or UL BWP) as a whole. UE 200 can perform DL reception in the DL BWP within this symbol / slot (or UL transmission in the UL BWP).

[0210] • Alt-a3: UE 200 may not expect SBFD symbols / slots to be indicated as D ( / U) by SFI.

[0211] • When indicated by SFI as F, • Alt-b1: UE 200 can treat this symbol / slot as an SBFD symbol / slot. UE 200 can also operate in the same way as previous operations for SBFD symbols / slots.

[0212] • Alt-b2: UE 200 can treat this symbol / slot as a non-SBFD F symbol / slot. UE 200 can schedule or configure DL reception in the DL BWP of this symbol / slot, or schedule or configure UL transmission in the UL BWP of this symbol / slot.

[0213] • Alt-b3: UE 200 may not expect SBFD symbols / slots to be indicated as F by SFI.

[0214] • Alt-b4: UE 200 may treat this symbol / time slot as a symbol / time slot with the configured DL or UL set to NOT available (NA). UE 200 may choose not to perform the configured DL reception or UL transmission in this symbol / time slot. UE 200 may also perform dynamically scheduled DL reception and dynamically scheduled UL transmission in this symbol / time slot.

[0215] (3.2.2.4.2) Option 4-2

[0216] The existing NR TDD configuration information (TDD-Config-Common and / or TDD-Config-Dedicated) can be used (and dynamic SFI based on DCI format 2_0 can also be used). In addition, additional / new UE-inherent signals can also be used.

[0217] The motivation for importing the added / new UE-specific signal is the same as option 2 of Operation Example 1. Furthermore, the added / new UE-specific signal can also use the same signal as in option 2 of Operation Example 1. Therefore, the added / new UE-specific signal can, for example, be referred to as US-SFI. Considering the setting / indication of the sub-band position of US-SFI and SBFD, UE 200 can also operate as follows.

[0218] First, for non-SBFD symbols / slots, the action of option 2 in action example 1 can be used.

[0219] Next, for SBFD symbols / slots, the operation can also be performed as follows.

[0220] • In the case indicated by US-SFI as D ( / U), • Alt-a1: UE 200 can treat this symbol / slot as an SBFD symbol / slot with an actually used DL (or UL) subband. UE 200 can perform DL reception in the DL subband of this symbol / slot (or, UL transmission in the UL subband).

[0221] • Alt-a2: UE 200 can treat this symbol / slot as a non-SBFD DL (or UL) symbol / slot and use the DL BWP (or UL BWP) as a whole. UE 200 can perform DL reception in the DL BWP within this symbol / slot (or UL transmission in the UL BWP).

[0222] • Alt-a3: UE 200 may not expect SBFD symbols / slots to be indicated as D ( / U) by US-SFI.

[0223] • In cases where the US-SFI indicates F, • Alt-b1: UE 200 can treat this symbol / slot as an SBFD symbol / slot. UE 200 can also operate in the same way as previous operations for SBFD symbols / slots.

[0224] • Alt-b2: UE 200 can treat this symbol / slot as a non-SBFD F symbol / slot. UE 200 can schedule or configure DL reception in the DL BWP of this symbol / slot, or schedule or configure UL transmission in the UL BWP of this symbol / slot.

[0225] • Alt-b3: UE 200 may not expect SBFD symbols / slots to be indicated as F by US-SFI.

[0226] • Alt-b4: UE 200 may treat this symbol / time slot as a symbol / time slot with the configured DL or UL set to NOT available (NA). UE 200 may choose not to perform the configured DL reception or UL transmission in this symbol / time slot. UE 200 may also perform dynamically scheduled DL reception and dynamically scheduled UL transmission in this symbol / time slot.

[0227] (3.2.2.5) Option 5

[0228] The FD operation of gNB 100 and the time and / or frequency domain resources within the FD operation are non-transparent to UE 200. On the other hand, the subband location of SBFD is transparent to UE 200. That is, UE 200 is aware that gNB 100 performs FD operations and the time and / or frequency domain resources within the FD operation, but is not aware of the subband location of SBFD.

[0229] Therefore, in option 5, the actions in option 3 (option 3-1 / 3-2 / 3-3) of action example 1 and the actions in option 4 related to option 3 of action example 1 can be used.

[0230] (3.2.2.6) Option 6

[0231] The FD (Flight Deployment) operations of gNB 100 and the time and / or frequency domain resources within those operations are non-transparent to UE 200. Furthermore, as... Figure 9 As shown, the subband location of SBFD is also non-transparent to UE 200. That is, UE 200 is aware that gNB 100 is operating with FD, the time and / or frequency domain resources during FD operation, and the subband location of SBFD. Furthermore, Figure 9 and Figure 7 Similarly, the following scenario is shown: for F symbols / slots, gNB100 is considered as FD symbols / slots, and UE 200 (UE#1, UE#2, UE#3, UE#4 in the figure) is considered as HD symbols / slots.

[0232] Therefore, in Option 6, the signaling indicating the subband position of the SBFD can be performed as shown below, based on the action in Option 3 of Action Example 1. This also extends the actions of UE 200. Furthermore, the signaling indicating the subband position of the SBFD can be specified in Release 19 and later. Additionally, the subband position of the SBFD can also be set via RRC signaling. In this case, the subband position can also be represented by start and end frequencies, center frequency, and frequency band, etc. Furthermore, the frequency of the subband can also be set by the granularity (unit) of subcarrier / resource block (RB) / resource block group (RBG) / (in the sense of multiple subbands constituting a broadband band) subband, etc. And, activation / deactivation can also be performed via MAC CE / DCI, etc.

[0233] (3.2.2.6.1) Option 6-1

[0234] The configuration information of the previous NR TDD (TDD-Config-Common and / or TDD-Config-Dedicated) can be used (and dynamic SFI based on DCI format 2_0 can also be used).

[0235] When observed from gNB 100, FD symbols / slots can be indicated by setting them to F symbols / slots. UE interpretation / actions based on existing signaling can also be extended as follows.

[0236] <Explanation of Semi-Static TDD Configuration and Subband Position Signaling in SBFD>

[0237] • UE 200 will be set / instructed during SBFD operation to treat the symbols / slots of the UL (and DL) subbands as SBFD symbols / slots.

[0238] · The UE 200 regards the symbols / slots of the UL (and DL) subbands that are not set / indicated in the SBFD operation (i.e., non-SBFD symbols / slots) and the non-SBFD symbols / slots set to F as FD symbols / slots. In addition, the UE 200 regards the non-SBFD symbols / slots set to D / U as HD symbols / slots.

[0239] <Explanation of dynamic SFI indication such as D / U>

[0240] (When the object of the dynamic SFI indication is non-SBFD symbols / slots)

[0241] · The operation of option 3-1 in action example 1 can be followed.

[0242] (When the object of the dynamic SFI indication is SBFD symbols / slots)

[0243] · Alt-a1: The UE 200 can regard the symbol / slot as a SBFD symbol / slot with an actually used DL (or UL) subband. The UE 200 can perform DL reception in the DL subband of the symbol / slot (or, can perform UL transmission in the UL subband.).

[0244] · Alt-a2: The UE 200 can regard the symbol / slot as a non-SBFD HD DL (or UL) symbol / slot and use the entire DL BWP (or UL BWP).

[0245] · Alt-a3: The UE 200 can regard the symbol / slot as a non-SBFD FD DL (or UL) symbol / slot and use the entire DL BWP (or UL BWP).

[0246] · Alt-a4: The UE 200 can not expect the SBFD symbol / slot to be indicated as D ( / U) by the SFI.

[0247] <Explanation of dynamic SFI indication such as F>

[0248] (When the object of the dynamic SFI indication is non-SBFD symbols / slots)

[0249] · The operation of option 3-1 in action example 1 can be followed.

[0250] (When the object of the dynamic SFI indication is SBFD symbols / slots)

[0251] • Alt-b1: The UE 200 can treat this symbol / slot as an SBFD symbol / slot (i.e., it can perform DL reception in the DL subband or UL transmission in the UL subband). In this case, the decision or scheduling regarding which subband, DL or UL, is actually used can be further flexibly determined or scheduled.

[0252] • Alt-b2: UE 200 will treat symbols / slots indicated as F by the dynamic SFI as FD symbols / slots (non-SBFD). In this case, the actual direction of the FD symbols / slots can be further flexibly determined / scheduled.

[0253] • Alt-b3: UE 200 will treat symbols / slots indicated as F by the dynamic SFI as non-SBFD HD symbols / slots. In this case, the actual direction of the HD symbols / slots can be further flexibly determined / scheduled.

[0254] Variation: UE 200 can perform the set UL transmission and the set DL reception in this symbol / slot.

[0255] (3.2.2.6.2) Option 6-2

[0256] The configuration information of the previous NR TDD (TDD-Config-Common and / or TDD-Config-Dedicated) and / or dynamic SFI based on DCI format 2_0 can be used. In addition, supplementary / new semi-static signaling can also be used.

[0257] Similar to option 3-2 of action example 1, new cell common and / or UE-specific RRC settings (e.g., also referred to as FD-Config-Common and / or FD-Config-Dedicated) can be used to indicate semi-static FD symbols / slots.

[0258] UE 200 does not expect that, while setting the UL subband via SBFD, the symbol / slot will be set to FD symbol / slot via the aforementioned additional / new semi-static signaling.

[0259] Regarding non-SBFD symbols / slots, the UE interpretation / action described in option 3-2 of Action Example 1 can be used. Regarding SBFD symbols / slots, the SBFD actions specified in Release 19 and later can be used. Alternatively, regarding SBFD symbols / slots, the following SBFD action can also be performed.

[0260] For SBFD symbols / time slots where the UL subband is configured in the DL symbol / time slot, UE 200 performs transmission operations when resources are configured for the UL subband, and reception operations when resources are configured for the DL (DL subband). Furthermore, if different parameters (e.g., transmit power) are configured in the non-SBFD symbol / time slot and the SBFD symbol / time slot, UE 200 uses the parameters configured in the SBFD symbol / time slot.

[0261] (3.2.2.6.3) Option 6-3

[0262] The configuration information of the previous NR TDD (TDD-Config-Common and / or TDD-Config-Dedicated) and / or dynamic SFI based on DCI format 2_0 can be used. In addition, additional / new dynamic signaling can be used to implement FD (and HD).

[0263] Similar to option 3-3 of action example 1, dynamic signaling (e.g., DCI or MAC CE) that is cell common and / or UE-specific can also be used to dynamically indicate FD symbols / slots.

[0264] First, regarding non-SBFD symbols / slots, the UE interpretation / action described in option 3-3 of action example 1 can be used.

[0265] Next, regarding SBFD symbols / slots, a new cell-common or UE-specific dynamic indication (e.g., also referred to as FDI) can indicate FD or HD (or SBFD) for the symbols / slots. Alternatively, FDI can indicate FD or HD (or SBFD) for each (non-SBFD) symbol / slot, or only for semi-static FD symbols / slots. In this case, the symbol / slot indicated by FDI...

[0266] • Always SBFD symbol / slot. UE 200 can also ignore FDI indication for symbol / slot.

[0267] • It is always SBFD symbol / slot. UE 200 may also not expect FDI to indicate SBFD symbol / slot as FD or HD.

[0268] • SBFD symbols / slots can be converted to FD symbols / slots or HD symbols / slots based on FDI indication.

[0269] (3.2.2.6.4) Changes in option 6

[0270] Option 6-2 and option 6-3 can be combined.

[0271] In option 6, when the UE 200 is aware of the FD symbol / slot, HD symbol / slot, and SBFD symbol / slot, the UE 200's transmission and reception in the FD symbol / slot and / or HD symbol / slot and / or SBFD symbol / slot can be extended as follows.

[0272] • Special handling of DL reception or UL transmission in FD symbols / slots and / or HD symbols / slots and / or SBFD symbols / slots. For example, using parameters specifically designed for PUCCH / PUSCH / SRS in FD symbols / slots and / or HD symbols / slots and / or SBFD symbols / slots (e.g., parameters associated with the spatial / power domain).

[0273] Regarding the DL / UL channels / signals that repeat multiple times, different numbers of repetitions may be supported in different types of symbols / slots, or they may not be supported (for example, the number of repetitions for FD symbols / slots, HD symbols / slots, and SBFD symbols / slots may be different. Furthermore, these repetition numbers may all be different, or some may be different. For example, the number of repetitions for FD symbols / slots may be the same as the number of repetitions for HD symbols / slots, but different from the number of repetitions for SBFD symbols / slots).

[0274] Regarding periodic / semi-persistent DL / UL channels / signals, different transmission / reception opportunities for DL / UL channels / signals may or may not be supported in different types of symbols / slots (e.g., the periods of FD symbols / slots, HD symbols / slots, and SBFD symbols / slots may differ for this transmission / reception opportunity. Furthermore, these periods may all be different, or only some may differ. For example, the period of FD symbols / slots may be the same as the period of HD symbols / slots, but different from the period of SBFD symbols / slots).

[0275] • It may or may not support the transmission / reception opportunities of DL / UL channels / signals mapped to different types of symbols / time slots.

[0276] (3.2.2.7) Changes in Action Example 2

[0277] In Action Example 2 above, gNB 100 can also ensure the application of SBFD resources (e.g., SBFD symbols / time slots) to reduce interference to important channels / signals.

[0278] (3.2.3) UE capability information

[0279] Regarding the above action example, UE capability information can also be defined as follows. UE capability can be reported by UE 200.

[0280] • Regarding the UE capability to know that gNB 100 performs actions (awareness) via FD

[0281] • UE capability regarding time and / or frequency resources (awareness) when knowing that gNB 100 is operating in FD mode.

[0282] • UE capability regarding awareness of gNB 100 operating in FD mode and SBFD subband location (awareness)

[0283] • UE capability regarding time and / or frequency resources when knowing that gNB 100 is operating in FD mode, and the subband location (awareness) of SBFD.

[0284] • Regarding UE capability for supporting configured DL reception or configured UL transmission in symbols / slots indicated as F by SFI

[0285] • Regarding UE capability for supporting new cell common / UE-inherent RRC settings for gNB 100 indication FD.

[0286] • Regarding UE capability for supporting new cell-common / UE-inherent dynamic signaling for gNB 100 indication FD.

[0287] (4) Functions and effects

[0288] According to the above implementation method, when the terminal notification is performed using FD, flexible resource allocation based on FD can be achieved.

[0289] (5) Other implementation methods

[0290] The present invention has been described above according to the embodiments, but the present invention is not limited to these descriptions and various modifications and improvements can be made, which will be obvious to those skilled in the art.

[0291] The above examples of actions can be combined and used in combination as long as they do not contradict each other.

[0292] Furthermore, the block diagrams used in the description of the above embodiments illustrate blocks based on function. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Additionally, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can also be implemented by combining software within one or more of the aforementioned devices.

[0293] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, the functional block (structural part) that performs the sending function is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0294] For example, in one embodiment of this disclosure, the base station 100, terminal 200, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 10 This diagram illustrates an example of the hardware structure of a base station 100 and a terminal 200 according to an embodiment of this disclosure. The base station 100 and the terminal 200 described above may also be configured as a computer device that physically includes a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0295] Furthermore, in the following description, the term "device" may be replaced with "circuit," "device," "unit," etc. The hardware structure of base station 100 and terminal 200 may be configured to include one or more of the devices shown in the figures, or it may be configured to not include any of them.

[0296] The functions of the base station 100 and the terminal 200 are implemented by reading predetermined software (programs) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls the communication of the communication device 1004 or controls at least one of reading out and writing data in the memory 1002 and the storage device 1003.

[0297] The processor 1001 controls the computer as a whole, for example, by instructing the operating system to operate. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic devices, registers, etc.

[0298] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one direction of memory 1002 in the storage device 1003 and the communication device 1004, and performs various processes accordingly. The program is used to cause the computer to perform at least a portion of the actions described in the above embodiments. Although it has been described that the various processes described above are performed by one processor 1001, the various processes described above can also be performed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be implemented using one or more chips. In addition, the program can also be transmitted from a network via a telecommunications line.

[0299] The memory 1002 is a computer-readable recording medium, and may be composed of at least one of the following: read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), and random access memory (RAM). The memory 1002 may be referred to as a register, cache, main memory (main storage device), etc. The memory 1002 can store programs (program code), software modules, etc., that are executable for implementing the wireless communication method according to one embodiment of this disclosure.

[0300] Storage device 1003 is a computer-readable recording medium, and may be composed of at least one of the following: optical discs such as CD-ROM (Compact Disc ROM), hard disks, floppy disks, magneto-optical discs (e.g., compact discs, digital multipurpose discs, Blu-ray discs), smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. Storage device 1003 may also be referred to as an auxiliary storage device. The aforementioned storage medium may be, for example, a database, server, or other suitable media that includes at least one of memory 1002 and storage device 1003.

[0301] The communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. It is also referred to as a network device, network controller, network interface card (NIC), communication module, etc. The communication device 1004 may, for example, be configured to include a high-frequency switch, duplexer, filter, frequency synthesizer, etc., to implement at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD).

[0302] Input device 1005 is an input device that accepts input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, LED, etc.). Furthermore, input device 1005 and output device 1006 can also be integrated (e.g., a touch panel).

[0303] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 can be configured using a single bus or different buses can be used between each device.

[0304] Furthermore, the base station 100 and the terminal 200 can be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), and a field-programmable gate array (FPGA), which can be used to implement some or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0305] The notification of information is not limited to the forms / implementations described in this disclosure, and other methods may also be used. For example, the notification of information may be implemented through physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling), broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or combinations thereof. Additionally, RRC signaling may also be referred to as an RRC message, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0306] The various forms / implementations described in this disclosure can also be applied to systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (x is, for example, an integer or a decimal), Future Radio Access (FRA), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), 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 The system may include at least one of 802.20, Ultra-Wideband (UWB), Bluetooth (registered trademark), other suitable systems, and next-generation systems based on these systems that have been extended, modified, generated, or specified. Additionally, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.) for application.

[0307] The processing procedures, timing, and flow of the various forms / implementations described in this disclosure may be changed in order, provided there is no contradiction. For example, the elements of various steps are indicated using an illustrative order in the methods described in this disclosure, but are not limited to the specific order indicated.

[0308] In this disclosure, certain actions performed by the base station are sometimes also performed by its upper node, depending on the circumstances. In a network consisting of one or more network nodes having a base station, it is obvious that various actions performed to communicate with a terminal can be performed by at least one of the base station and other network nodes besides the base station (e.g., considering an MME or S-GW, but not limited to these). The above illustration depicts a case where there is only one other network node besides the base station, but it can also be a combination of multiple other network nodes (e.g., an MME and an S-GW).

[0309] It can output information and signals (information, etc.) from a higher (or lower) level to a lower (or higher) level. It can also be input or output through multiple network nodes.

[0310] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0311] The determination can be made by the value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by comparing numerical values ​​(e.g., comparing with a predetermined value).

[0312] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a "Yes X" notification) is not limited to being explicit, but can also be implicit (e.g., not notifying the predetermined information).

[0313] Software, whether called software, firmware, middleware, microcode, hardware description language, or by other names, should be broadly interpreted as referring to commands, command sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0314] In addition, software, commands, information, etc., can be sent and received via a transmission medium. For example, when software is sent from a webpage, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0315] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0316] Furthermore, the terms used in this disclosure and those necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and symbol may also be a signal (signaling). Additionally, a signal may also be a message. Furthermore, a component carrier (CC) may also be referred to as carrier frequency, cell, frequency carrier, etc.

[0317] The terms "system" and "network" as used in this disclosure are used interchangeably.

[0318] Furthermore, the information, parameters, etc., described in this disclosure can be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources can be indicated using indexes.

[0319] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0320] In this disclosure, the terms "Base Station (BS)," "wireless base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" are used interchangeably. Sometimes, terms such as macrocell, small cell, femtocell, and picocell are also used to refer to base stations.

[0321] 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 also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)). The terms "cell" or "sector" refer to a portion or the entire coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0322] In this disclosure, the base station sending information to the terminal can also be replaced by the base station instructing the terminal on information-based control / actions.

[0323] In this disclosure, the terms "terminal", "user terminal", "mobile station (MS)" and "user equipment (UE)" are used interchangeably.

[0324] For mobile stations, those skilled in the art sometimes also use the following terms: 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, handheld device, user agent, mobile client, client, or some other appropriate terms.

[0325] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Furthermore, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to a movable object with an arbitrary speed of movement. It also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, rear cars, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Additionally, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., car, airplane), a mobile body that moves unmanned (e.g., drone, autonomous vehicle), or a robot (humanized or unmanned). Furthermore, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0326] Furthermore, the base station in this disclosure can also be replaced by a terminal. For example, various forms / implementations of this disclosure can be applied to a structure that replaces the communication between the base station and the terminal with communication between multiple terminals (e.g., also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the terminal 200 can also be configured to have the functions of the base station 100 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be replaced with side channel.

[0327] Similarly, the terminal in this disclosure can also be replaced by a base station. In this case, the base station 100 can also be configured to have the functions of the terminal 200 described above.

[0328] Figure 11 An example of the structure of vehicle 2001 is shown. For example... Figure 11 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gear 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.

[0329] The drive unit 2002 may consist of, for example, an engine, a motor, or a hybrid power system of an engine and a motor.

[0330] The steering unit 2003 includes at least a steering wheel (also called a steering wheel) 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.

[0331] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021 to 2027 of the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an Electronic Control Unit (ECU).

[0332] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front and rear wheels obtained by speed sensor 2022, air pressure signals of the front and rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal input signals obtained by accelerator pedal sensor 2029, brake pedal input signals obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0333] The Information Service Unit 2012 consists of various devices such as a car navigation system, audio system, speakers, television, and radio, which provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information obtained from external devices via communication modules 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

[0334] The Information Services Department 2012 may include input devices that accept input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that implement output to external sources (e.g., monitor, speaker, LED light, touch panel, etc.).

[0335] The Driver Assistance System 2030 comprises various devices used to prevent accidents or reduce driver workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the Driver Assistance System 2030 transmits and receives various information via the communication module 2013 to achieve driver assistance or autonomous driving functions.

[0336] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 2001 via the communication port. For example, the communication module 2013 can send and receive data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 2029 in the vehicle 2001 via the communication port 2033.

[0337] The communication module 2013, controlled by the microprocessor 2031 of the electronic control unit 2010, is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control unit 2010. External devices can be, for example, base stations, mobile stations, etc.

[0338] The communication module 2013 can wirelessly transmit to an external device at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2029, information obtained based on those signals, and information obtained via the information service unit 2012 based on input from an external source (user). The electronic control unit 2010, the various sensors 2021-2029, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted by the communication module 2013 can contain information based on the aforementioned input.

[0339] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) sent from external devices and displays it on the information service unit 2012 provided by the vehicle. The information service unit 2012 can also be referred to as an output unit that outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or the data / information decoded from the PDSCH).

[0340] In addition, the communication module 2013 stores various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, sensors 2021 to 2029, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0341] As used in this disclosure, terms such as "determining" and "determining" sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, looking up, searching, or inquiring (e.g., searching in a table, database, or other data structure), or ascertaining, which are considered as actions of "determining" or "determining." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, or accessing (e.g., accessing data in memory), which are considered as actions of "determining" or "determining." Additionally, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, or comparing, which are considered as actions of "determining" or "determining." That is, "judgment" and "decision" can include matters that are considered as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0342] The terms "connected," "coupled," or any variations thereof are intended to indicate any direct or indirect connection or combination between two or more elements, including cases where there is one or more intermediate elements between the two elements that are "connected" or "coupled." The combination or connection between elements can be physical, logical, or a combination of these. For example, "access" can be used instead of "connected." In the context of this disclosure, it can be understood that two elements are "connected" or "coupled" to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions) to "connect" or "couple" to each other.

[0343] The reference signal can also be abbreviated as RS, or, depending on the standard applied, as a pilot.

[0344] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise expressly stated. In other words, the word "based on" means both "based on only" and "based on at least".

[0345] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Therefore, references to the first element and the second element do not imply that only two elements can be taken or that the first element must precede the second element in any form.

[0346] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0347] When the terms "include," "including," and variations thereof are used in this disclosure, these terms, like the term "comprising," imply inclusion. Furthermore, the term "or" as used in this disclosure does not refer to XOR.

[0348] A radio frame can consist of one or more frames in the time domain. Each frame in the time domain can be called a subframe. A subframe can also consist of one or more time slots in the time domain. A subframe can be a fixed duration (e.g., 1 ms) independent of the parameter set (numerology).

[0349] A parameter set can be communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set can represent at least one of the following: Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, and specific windowing processing performed by the transceiver in the time domain.

[0350] In the time domain, a time slot can be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A time slot can be a time unit based on a set of parameters.

[0351] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Additionally, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0352] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can each be referred to by other corresponding names.

[0353] For example, a single subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and a single time slot or a single mini-time slot can also be called a TTI. In other words, at least one of a subframe or TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., symbols 1-13), or a period longer than 1ms. Furthermore, the unit representing TTI can also be called a time slot, mini-time slot, etc., instead of a subframe.

[0354] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each terminal) to each terminal in units of TTI. However, the definition of TTI is not limited to this.

[0355] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than that TTI.

[0356] Furthermore, when one time slot or one mini time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit for scheduling can also be controlled.

[0357] A TTI with a duration of 1ms can also be called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0358] Furthermore, for long TTIs (e.g., normal TTIs, subframes, etc.), they can be replaced with TTIs with a duration of more than 1ms. For short TTIs (e.g., shortened TTIs, etc.), they can be replaced with TTIs with a duration of less than long TTIs but more than 1ms.

[0359] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers contained in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers contained in an RB can also be determined based on the parameter set.

[0360] In addition, the time domain of an RB can contain one or more symbols, which can be a time slot, a mini time slot, a subframe, or a TTI in length. A TTI, a subframe, etc., can each be composed of one or more resource blocks.

[0361] In addition, one or more RBs can also be called Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0362] In addition, a resource block can consist of one or more resource elements (REs). For example, one RE can be a radio resource area consisting of one subcarrier and one symbol.

[0363] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can represent a subset of contiguous common resource blocks (RBs) used for a certain parameter set in a given carrier. Here, common RBs can be determined by indexing RBs based on a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0364] A BWP can include a UL BWP and a DL BWP. One or more BWPs can be set for a UE within a single carrier.

[0365] At least one of the configured BWPs can be active, and the UE may not intend to transmit or receive predetermined signals / channels outside of the active BWP. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced by "BWP."

[0366] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other structures can be varied in many ways.

[0367] The term "maximum transmit power" as used in this disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power, or the rated maximum transmit power.

[0368] In this disclosure, for example, in cases where articles are added through translation, such as in English (e.g., a, an, and the), this disclosure may also include cases where the noun following these articles is in a plural form.

[0369] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Furthermore, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0370] The present disclosure has been described in detail above, but it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the present disclosure is for illustrative purposes only and is not intended to be limiting.

[0371] (Postscript)

[0372] The aforementioned disclosure can also be expressed as follows.

[0373] The first feature is a base station comprising: a transmitting unit that notifies operation in a first duplex mode using resources that are repeated in the time and frequency domains for transmission and reception, and notifies the position of the sub-band in a second duplex mode for transmission or reception in each sub-band constituting a band domain of the time-division duplex mode; and a control unit that instructs the transmission and reception direction of each terminal in the resources or the sub-band via parameters inherent to the terminal.

[0374] The second feature is that, in the first feature, the control unit indicates the transmission and reception direction via a time slot format indicator inherent to the terminal, which is the parameter.

[0375] The third feature is that, in the first feature, the control unit indicates the location of the resource in the time domain and the frequency domain via the parameters.

[0376] The fourth feature is that, in the third feature, the control unit semi-statically indicates the location of the resource via the parameters included in the setting information of the radio resource control layer.

[0377] The fifth feature is that, in the third or fourth feature, the location of the resource is dynamically indicated via the parameters included in the downlink control information.

[0378] The sixth feature is a wireless communication method in which a notification is made to operate in a first duplex mode using resources that are repeated in the time and frequency domains for transmission and reception, and a notification is made to indicate the position of the sub-band in a second duplex mode in which transmission or reception is performed in each sub-band of the band domain constituting the time-division duplex mode, via parameters inherent to the terminal, indicating the transmission and reception direction of the resources or the terminals in the sub-band.

[0379] Label Explanation

[0380] 10: Wireless Communication System

[0381] 20: NG-RAN

[0382] 100: Base station

[0383] 110: Wireless Signal Transceiver Unit

[0384] 120: Enlarged section

[0385] 130: Modulation and Demodulation Section

[0386] 140: Control Signal & Reference Signal Processing Unit

[0387] 150: Encoding / Decoding Section

[0388] 160: Data Transceiver Department

[0389] 170: Control Department

[0390] 200: Terminal

[0391] 210: Wireless Signal Transceiver Unit

[0392] 220: Control Department

[0393] 1001: Processor

[0394] 1002: Memory

[0395] 1003: Storage device

[0396] 1004: Communication device

[0397] 1005: Input device

[0398] 1006: Output device

[0399] 1007: Bus

[0400] 2001: Vehicles

[0401] 2002: Drive Unit

[0402] 2003: Steering Unit

[0403] 2004: Accelerator Pedal

[0404] 2005: Brake Pedal

[0405] 2006: Gear Shift

[0406] 2007: Left and right front wheels

[0407] 2008: Left and right rear wheels

[0408] 2009: Axle

[0409] 2010: Electronic Control Department

[0410] 2012: Information Services Department

[0411] 2013: Communication Module

[0412] 2021: Current Sensor

[0413] 2022: Speed ​​Sensor

[0414] 2023: Barometric Pressure Sensor

[0415] 2024: Vehicle Speed ​​Sensor

[0416] 2025: Accelerometer

[0417] 2026: Brake Pedal Sensor

[0418] 2027: Gearshift Sensor

[0419] 2028: Object Detection Sensor

[0420] 2029: Accelerator Pedal Sensor

[0421] 2030: Driver Assistance Systems Department

[0422] 2031: Microprocessors

[0423] 2032: Memory (ROM, RAM)

[0424] 2033: Communication port (IO port)< / variation>

Claims

1. A base station, comprising: The transmitting unit notifies the operation of a first duplex mode that uses resources that are repeated in the time and frequency domains for transmission and reception, and notifies the position of the sub-bands in a second duplex mode that transmits or receives according to each sub-band of the band domain constituting the time-division duplex mode; and The control unit, via parameters inherent to the terminal, instructs the transmission and reception direction of each terminal in the resource or the subband.

2. The base station according to claim 1, wherein, The control unit indicates the transmission and reception direction via a time slot format indicator inherent to the terminal, which is the parameter.

3. The base station according to claim 1, wherein, The control unit indicates the location of the resource in the time domain and the frequency domain via the parameters.

4. The base station according to claim 3, wherein, The control unit semi-statically indicates the location of the resource via the parameters included in the setting information of the wireless resource control layer.

5. The base station according to claim 3, wherein, The control unit dynamically indicates the location of the resource via the parameters included in the downlink control information.

6. A wireless communication method, wherein, The notification operates in a first-duplex mode, using resources that are repeated in both the time and frequency domains for transmission and reception. The notification specifies the location of the sub-band in the second duplex mode, which is used for transmission or reception according to each sub-band of the band domain constituting the time-division duplex mode. The transmission and reception direction of each terminal in the resource or subband is indicated by parameters inherent to the terminal.

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